/*! ***************************************************************************** Copyright © Microsoft Corporation. All rights reserved. Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at www.apache.org/licenses/LICENSE-2.0

THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR NON-INFRINGEMENT.

See the Apache Version 2.0 License for specific language governing permissions and limitations under the License. ***************************************************************************** */

var ts; (function (ts) {

var OperationCanceledException = (function () {
    function OperationCanceledException() {
    }
    return OperationCanceledException;
}());
ts.OperationCanceledException = OperationCanceledException;
var ExitStatus;
(function (ExitStatus) {
    ExitStatus[ExitStatus["Success"] = 0] = "Success";
    ExitStatus[ExitStatus["DiagnosticsPresent_OutputsSkipped"] = 1] = "DiagnosticsPresent_OutputsSkipped";
    ExitStatus[ExitStatus["DiagnosticsPresent_OutputsGenerated"] = 2] = "DiagnosticsPresent_OutputsGenerated";
})(ExitStatus = ts.ExitStatus || (ts.ExitStatus = {}));
var TypeReferenceSerializationKind;
(function (TypeReferenceSerializationKind) {
    TypeReferenceSerializationKind[TypeReferenceSerializationKind["Unknown"] = 0] = "Unknown";
    TypeReferenceSerializationKind[TypeReferenceSerializationKind["TypeWithConstructSignatureAndValue"] = 1] = "TypeWithConstructSignatureAndValue";
    TypeReferenceSerializationKind[TypeReferenceSerializationKind["VoidNullableOrNeverType"] = 2] = "VoidNullableOrNeverType";
    TypeReferenceSerializationKind[TypeReferenceSerializationKind["NumberLikeType"] = 3] = "NumberLikeType";
    TypeReferenceSerializationKind[TypeReferenceSerializationKind["StringLikeType"] = 4] = "StringLikeType";
    TypeReferenceSerializationKind[TypeReferenceSerializationKind["BooleanType"] = 5] = "BooleanType";
    TypeReferenceSerializationKind[TypeReferenceSerializationKind["ArrayLikeType"] = 6] = "ArrayLikeType";
    TypeReferenceSerializationKind[TypeReferenceSerializationKind["ESSymbolType"] = 7] = "ESSymbolType";
    TypeReferenceSerializationKind[TypeReferenceSerializationKind["Promise"] = 8] = "Promise";
    TypeReferenceSerializationKind[TypeReferenceSerializationKind["TypeWithCallSignature"] = 9] = "TypeWithCallSignature";
    TypeReferenceSerializationKind[TypeReferenceSerializationKind["ObjectType"] = 10] = "ObjectType";
})(TypeReferenceSerializationKind = ts.TypeReferenceSerializationKind || (ts.TypeReferenceSerializationKind = {}));
var DiagnosticCategory;
(function (DiagnosticCategory) {
    DiagnosticCategory[DiagnosticCategory["Warning"] = 0] = "Warning";
    DiagnosticCategory[DiagnosticCategory["Error"] = 1] = "Error";
    DiagnosticCategory[DiagnosticCategory["Message"] = 2] = "Message";
})(DiagnosticCategory = ts.DiagnosticCategory || (ts.DiagnosticCategory = {}));
var ModuleResolutionKind;
(function (ModuleResolutionKind) {
    ModuleResolutionKind[ModuleResolutionKind["Classic"] = 1] = "Classic";
    ModuleResolutionKind[ModuleResolutionKind["NodeJs"] = 2] = "NodeJs";
})(ModuleResolutionKind = ts.ModuleResolutionKind || (ts.ModuleResolutionKind = {}));
var ModuleKind;
(function (ModuleKind) {
    ModuleKind[ModuleKind["None"] = 0] = "None";
    ModuleKind[ModuleKind["CommonJS"] = 1] = "CommonJS";
    ModuleKind[ModuleKind["AMD"] = 2] = "AMD";
    ModuleKind[ModuleKind["UMD"] = 3] = "UMD";
    ModuleKind[ModuleKind["System"] = 4] = "System";
    ModuleKind[ModuleKind["ES2015"] = 5] = "ES2015";
})(ModuleKind = ts.ModuleKind || (ts.ModuleKind = {}));
var Extension;
(function (Extension) {
    Extension[Extension["Ts"] = 0] = "Ts";
    Extension[Extension["Tsx"] = 1] = "Tsx";
    Extension[Extension["Dts"] = 2] = "Dts";
    Extension[Extension["Js"] = 3] = "Js";
    Extension[Extension["Jsx"] = 4] = "Jsx";
    Extension[Extension["LastTypeScriptExtension"] = 2] = "LastTypeScriptExtension";
})(Extension = ts.Extension || (ts.Extension = {}));

})(ts || (ts = {})); var ts; (function (ts) {

ts.timestamp = typeof performance !== "undefined" && performance.now ? function () { return performance.now(); } : Date.now ? Date.now : function () { return +(new Date()); };

})(ts || (ts = {})); (function (ts) {

var performance;
(function (performance) {
    var profilerEvent = typeof onProfilerEvent === "function" && onProfilerEvent.profiler === true
        ? onProfilerEvent
        : function (_markName) { };
    var enabled = false;
    var profilerStart = 0;
    var counts;
    var marks;
    var measures;
    function mark(markName) {
        if (enabled) {
            marks[markName] = ts.timestamp();
            counts[markName] = (counts[markName] || 0) + 1;
            profilerEvent(markName);
        }
    }
    performance.mark = mark;
    function measure(measureName, startMarkName, endMarkName) {
        if (enabled) {
            var end = endMarkName && marks[endMarkName] || ts.timestamp();
            var start = startMarkName && marks[startMarkName] || profilerStart;
            measures[measureName] = (measures[measureName] || 0) + (end - start);
        }
    }
    performance.measure = measure;
    function getCount(markName) {
        return counts && counts[markName] || 0;
    }
    performance.getCount = getCount;
    function getDuration(measureName) {
        return measures && measures[measureName] || 0;
    }
    performance.getDuration = getDuration;
    function forEachMeasure(cb) {
        for (var key in measures) {
            cb(key, measures[key]);
        }
    }
    performance.forEachMeasure = forEachMeasure;
    function enable() {
        counts = ts.createMap();
        marks = ts.createMap();
        measures = ts.createMap();
        enabled = true;
        profilerStart = ts.timestamp();
    }
    performance.enable = enable;
    function disable() {
        enabled = false;
    }
    performance.disable = disable;
})(performance = ts.performance || (ts.performance = {}));

})(ts || (ts = {})); var ts; (function (ts) {

ts.version = "2.1.5";

})(ts || (ts = {})); (function (ts) {

var createObject = Object.create;
ts.collator = typeof Intl === "object" && typeof Intl.Collator === "function" ? new Intl.Collator() : undefined;
function createMap(template) {
    var map = createObject(null);
    map["__"] = undefined;
    delete map["__"];
    for (var key in template)
        if (hasOwnProperty.call(template, key)) {
            map[key] = template[key];
        }
    return map;
}
ts.createMap = createMap;
function createFileMap(keyMapper) {
    var files = createMap();
    return {
        get: get,
        set: set,
        contains: contains,
        remove: remove,
        forEachValue: forEachValueInMap,
        getKeys: getKeys,
        clear: clear,
    };
    function forEachValueInMap(f) {
        for (var key in files) {
            f(key, files[key]);
        }
    }
    function getKeys() {
        var keys = [];
        for (var key in files) {
            keys.push(key);
        }
        return keys;
    }
    function get(path) {
        return files[toKey(path)];
    }
    function set(path, value) {
        files[toKey(path)] = value;
    }
    function contains(path) {
        return toKey(path) in files;
    }
    function remove(path) {
        var key = toKey(path);
        delete files[key];
    }
    function clear() {
        files = createMap();
    }
    function toKey(path) {
        return keyMapper ? keyMapper(path) : path;
    }
}
ts.createFileMap = createFileMap;
function toPath(fileName, basePath, getCanonicalFileName) {
    var nonCanonicalizedPath = isRootedDiskPath(fileName)
        ? normalizePath(fileName)
        : getNormalizedAbsolutePath(fileName, basePath);
    return getCanonicalFileName(nonCanonicalizedPath);
}
ts.toPath = toPath;
function forEach(array, callback) {
    if (array) {
        for (var i = 0, len = array.length; i < len; i++) {
            var result = callback(array[i], i);
            if (result) {
                return result;
            }
        }
    }
    return undefined;
}
ts.forEach = forEach;
function zipWith(arrayA, arrayB, callback) {
    Debug.assert(arrayA.length === arrayB.length);
    for (var i = 0; i < arrayA.length; i++) {
        callback(arrayA[i], arrayB[i], i);
    }
}
ts.zipWith = zipWith;
function every(array, callback) {
    if (array) {
        for (var i = 0, len = array.length; i < len; i++) {
            if (!callback(array[i], i)) {
                return false;
            }
        }
    }
    return true;
}
ts.every = every;
function find(array, predicate) {
    for (var i = 0, len = array.length; i < len; i++) {
        var value = array[i];
        if (predicate(value, i)) {
            return value;
        }
    }
    return undefined;
}
ts.find = find;
function findMap(array, callback) {
    for (var i = 0, len = array.length; i < len; i++) {
        var result = callback(array[i], i);
        if (result) {
            return result;
        }
    }
    Debug.fail();
}
ts.findMap = findMap;
function contains(array, value) {
    if (array) {
        for (var _i = 0, array_1 = array; _i < array_1.length; _i++) {
            var v = array_1[_i];
            if (v === value) {
                return true;
            }
        }
    }
    return false;
}
ts.contains = contains;
function indexOf(array, value) {
    if (array) {
        for (var i = 0, len = array.length; i < len; i++) {
            if (array[i] === value) {
                return i;
            }
        }
    }
    return -1;
}
ts.indexOf = indexOf;
function indexOfAnyCharCode(text, charCodes, start) {
    for (var i = start || 0, len = text.length; i < len; i++) {
        if (contains(charCodes, text.charCodeAt(i))) {
            return i;
        }
    }
    return -1;
}
ts.indexOfAnyCharCode = indexOfAnyCharCode;
function countWhere(array, predicate) {
    var count = 0;
    if (array) {
        for (var i = 0; i < array.length; i++) {
            var v = array[i];
            if (predicate(v, i)) {
                count++;
            }
        }
    }
    return count;
}
ts.countWhere = countWhere;
function filter(array, f) {
    if (array) {
        var len = array.length;
        var i = 0;
        while (i < len && f(array[i]))
            i++;
        if (i < len) {
            var result = array.slice(0, i);
            i++;
            while (i < len) {
                var item = array[i];
                if (f(item)) {
                    result.push(item);
                }
                i++;
            }
            return result;
        }
    }
    return array;
}
ts.filter = filter;
function removeWhere(array, f) {
    var outIndex = 0;
    for (var _i = 0, array_2 = array; _i < array_2.length; _i++) {
        var item = array_2[_i];
        if (!f(item)) {
            array[outIndex] = item;
            outIndex++;
        }
    }
    if (outIndex !== array.length) {
        array.length = outIndex;
        return true;
    }
    return false;
}
ts.removeWhere = removeWhere;
function filterMutate(array, f) {
    var outIndex = 0;
    for (var _i = 0, array_3 = array; _i < array_3.length; _i++) {
        var item = array_3[_i];
        if (f(item)) {
            array[outIndex] = item;
            outIndex++;
        }
    }
    array.length = outIndex;
}
ts.filterMutate = filterMutate;
function map(array, f) {
    var result;
    if (array) {
        result = [];
        for (var i = 0; i < array.length; i++) {
            result.push(f(array[i], i));
        }
    }
    return result;
}
ts.map = map;
function sameMap(array, f) {
    var result;
    if (array) {
        for (var i = 0; i < array.length; i++) {
            if (result) {
                result.push(f(array[i], i));
            }
            else {
                var item = array[i];
                var mapped = f(item, i);
                if (item !== mapped) {
                    result = array.slice(0, i);
                    result.push(mapped);
                }
            }
        }
    }
    return result || array;
}
ts.sameMap = sameMap;
function flatten(array) {
    var result;
    if (array) {
        result = [];
        for (var _i = 0, array_4 = array; _i < array_4.length; _i++) {
            var v = array_4[_i];
            if (v) {
                if (isArray(v)) {
                    addRange(result, v);
                }
                else {
                    result.push(v);
                }
            }
        }
    }
    return result;
}
ts.flatten = flatten;
function flatMap(array, mapfn) {
    var result;
    if (array) {
        result = [];
        for (var i = 0; i < array.length; i++) {
            var v = mapfn(array[i], i);
            if (v) {
                if (isArray(v)) {
                    addRange(result, v);
                }
                else {
                    result.push(v);
                }
            }
        }
    }
    return result;
}
ts.flatMap = flatMap;
function span(array, f) {
    if (array) {
        for (var i = 0; i < array.length; i++) {
            if (!f(array[i], i)) {
                return [array.slice(0, i), array.slice(i)];
            }
        }
        return [array.slice(0), []];
    }
    return undefined;
}
ts.span = span;
function spanMap(array, keyfn, mapfn) {
    var result;
    if (array) {
        result = [];
        var len = array.length;
        var previousKey = void 0;
        var key = void 0;
        var start = 0;
        var pos = 0;
        while (start < len) {
            while (pos < len) {
                var value = array[pos];
                key = keyfn(value, pos);
                if (pos === 0) {
                    previousKey = key;
                }
                else if (key !== previousKey) {
                    break;
                }
                pos++;
            }
            if (start < pos) {
                var v = mapfn(array.slice(start, pos), previousKey, start, pos);
                if (v) {
                    result.push(v);
                }
                start = pos;
            }
            previousKey = key;
            pos++;
        }
    }
    return result;
}
ts.spanMap = spanMap;
function mapObject(object, f) {
    var result;
    if (object) {
        result = {};
        for (var _i = 0, _a = getOwnKeys(object); _i < _a.length; _i++) {
            var v = _a[_i];
            var _b = f(v, object[v]) || [undefined, undefined], key = _b[0], value = _b[1];
            if (key !== undefined) {
                result[key] = value;
            }
        }
    }
    return result;
}
ts.mapObject = mapObject;
function some(array, predicate) {
    if (array) {
        if (predicate) {
            for (var _i = 0, array_5 = array; _i < array_5.length; _i++) {
                var v = array_5[_i];
                if (predicate(v)) {
                    return true;
                }
            }
        }
        else {
            return array.length > 0;
        }
    }
    return false;
}
ts.some = some;
function concatenate(array1, array2) {
    if (!some(array2))
        return array1;
    if (!some(array1))
        return array2;
    return array1.concat(array2);
}
ts.concatenate = concatenate;
function deduplicate(array, areEqual) {
    var result;
    if (array) {
        result = [];
        loop: for (var _i = 0, array_6 = array; _i < array_6.length; _i++) {
            var item = array_6[_i];
            for (var _a = 0, result_1 = result; _a < result_1.length; _a++) {
                var res = result_1[_a];
                if (areEqual ? areEqual(res, item) : res === item) {
                    continue loop;
                }
            }
            result.push(item);
        }
    }
    return result;
}
ts.deduplicate = deduplicate;
function arrayIsEqualTo(array1, array2, equaler) {
    if (!array1 || !array2) {
        return array1 === array2;
    }
    if (array1.length !== array2.length) {
        return false;
    }
    for (var i = 0; i < array1.length; i++) {
        var equals = equaler ? equaler(array1[i], array2[i]) : array1[i] === array2[i];
        if (!equals) {
            return false;
        }
    }
    return true;
}
ts.arrayIsEqualTo = arrayIsEqualTo;
function changesAffectModuleResolution(oldOptions, newOptions) {
    return !oldOptions ||
        (oldOptions.module !== newOptions.module) ||
        (oldOptions.moduleResolution !== newOptions.moduleResolution) ||
        (oldOptions.noResolve !== newOptions.noResolve) ||
        (oldOptions.target !== newOptions.target) ||
        (oldOptions.noLib !== newOptions.noLib) ||
        (oldOptions.jsx !== newOptions.jsx) ||
        (oldOptions.allowJs !== newOptions.allowJs) ||
        (oldOptions.rootDir !== newOptions.rootDir) ||
        (oldOptions.configFilePath !== newOptions.configFilePath) ||
        (oldOptions.baseUrl !== newOptions.baseUrl) ||
        (oldOptions.maxNodeModuleJsDepth !== newOptions.maxNodeModuleJsDepth) ||
        !arrayIsEqualTo(oldOptions.lib, newOptions.lib) ||
        !arrayIsEqualTo(oldOptions.typeRoots, newOptions.typeRoots) ||
        !arrayIsEqualTo(oldOptions.rootDirs, newOptions.rootDirs) ||
        !equalOwnProperties(oldOptions.paths, newOptions.paths);
}
ts.changesAffectModuleResolution = changesAffectModuleResolution;
function compact(array) {
    var result;
    if (array) {
        for (var i = 0; i < array.length; i++) {
            var v = array[i];
            if (result || !v) {
                if (!result) {
                    result = array.slice(0, i);
                }
                if (v) {
                    result.push(v);
                }
            }
        }
    }
    return result || array;
}
ts.compact = compact;
function relativeComplement(arrayA, arrayB, comparer, offsetA, offsetB) {
    if (comparer === void 0) { comparer = compareValues; }
    if (offsetA === void 0) { offsetA = 0; }
    if (offsetB === void 0) { offsetB = 0; }
    if (!arrayB || !arrayA || arrayB.length === 0 || arrayA.length === 0)
        return arrayB;
    var result = [];
    outer: for (; offsetB < arrayB.length; offsetB++) {
        inner: for (; offsetA < arrayA.length; offsetA++) {
            switch (comparer(arrayB[offsetB], arrayA[offsetA])) {
                case -1: break inner;
                case 0: continue outer;
                case 1: continue inner;
            }
        }
        result.push(arrayB[offsetB]);
    }
    return result;
}
ts.relativeComplement = relativeComplement;
function sum(array, prop) {
    var result = 0;
    for (var _i = 0, array_7 = array; _i < array_7.length; _i++) {
        var v = array_7[_i];
        result += v[prop];
    }
    return result;
}
ts.sum = sum;
function append(to, value) {
    if (value === undefined)
        return to;
    if (to === undefined)
        return [value];
    to.push(value);
    return to;
}
ts.append = append;
function addRange(to, from) {
    if (from === undefined)
        return to;
    for (var _i = 0, from_1 = from; _i < from_1.length; _i++) {
        var v = from_1[_i];
        to = append(to, v);
    }
    return to;
}
ts.addRange = addRange;
function stableSort(array, comparer) {
    if (comparer === void 0) { comparer = compareValues; }
    return array
        .map(function (_, i) { return i; })
        .sort(function (x, y) { return comparer(array[x], array[y]) || compareValues(x, y); })
        .map(function (i) { return array[i]; });
}
ts.stableSort = stableSort;
function rangeEquals(array1, array2, pos, end) {
    while (pos < end) {
        if (array1[pos] !== array2[pos]) {
            return false;
        }
        pos++;
    }
    return true;
}
ts.rangeEquals = rangeEquals;
function firstOrUndefined(array) {
    return array && array.length > 0
        ? array[0]
        : undefined;
}
ts.firstOrUndefined = firstOrUndefined;
function lastOrUndefined(array) {
    return array && array.length > 0
        ? array[array.length - 1]
        : undefined;
}
ts.lastOrUndefined = lastOrUndefined;
function singleOrUndefined(array) {
    return array && array.length === 1
        ? array[0]
        : undefined;
}
ts.singleOrUndefined = singleOrUndefined;
function singleOrMany(array) {
    return array && array.length === 1
        ? array[0]
        : array;
}
ts.singleOrMany = singleOrMany;
function replaceElement(array, index, value) {
    var result = array.slice(0);
    result[index] = value;
    return result;
}
ts.replaceElement = replaceElement;
function binarySearch(array, value, comparer, offset) {
    if (!array || array.length === 0) {
        return -1;
    }
    var low = offset || 0;
    var high = array.length - 1;
    comparer = comparer !== undefined
        ? comparer
        : function (v1, v2) { return (v1 < v2 ? -1 : (v1 > v2 ? 1 : 0)); };
    while (low <= high) {
        var middle = low + ((high - low) >> 1);
        var midValue = array[middle];
        if (comparer(midValue, value) === 0) {
            return middle;
        }
        else if (comparer(midValue, value) > 0) {
            high = middle - 1;
        }
        else {
            low = middle + 1;
        }
    }
    return ~low;
}
ts.binarySearch = binarySearch;
function reduceLeft(array, f, initial, start, count) {
    if (array && array.length > 0) {
        var size = array.length;
        if (size > 0) {
            var pos = start === undefined || start < 0 ? 0 : start;
            var end = count === undefined || pos + count > size - 1 ? size - 1 : pos + count;
            var result = void 0;
            if (arguments.length <= 2) {
                result = array[pos];
                pos++;
            }
            else {
                result = initial;
            }
            while (pos <= end) {
                result = f(result, array[pos], pos);
                pos++;
            }
            return result;
        }
    }
    return initial;
}
ts.reduceLeft = reduceLeft;
function reduceRight(array, f, initial, start, count) {
    if (array) {
        var size = array.length;
        if (size > 0) {
            var pos = start === undefined || start > size - 1 ? size - 1 : start;
            var end = count === undefined || pos - count < 0 ? 0 : pos - count;
            var result = void 0;
            if (arguments.length <= 2) {
                result = array[pos];
                pos--;
            }
            else {
                result = initial;
            }
            while (pos >= end) {
                result = f(result, array[pos], pos);
                pos--;
            }
            return result;
        }
    }
    return initial;
}
ts.reduceRight = reduceRight;
var hasOwnProperty = Object.prototype.hasOwnProperty;
function hasProperty(map, key) {
    return hasOwnProperty.call(map, key);
}
ts.hasProperty = hasProperty;
function getProperty(map, key) {
    return hasOwnProperty.call(map, key) ? map[key] : undefined;
}
ts.getProperty = getProperty;
function getOwnKeys(map) {
    var keys = [];
    for (var key in map)
        if (hasOwnProperty.call(map, key)) {
            keys.push(key);
        }
    return keys;
}
ts.getOwnKeys = getOwnKeys;
function forEachProperty(map, callback) {
    var result;
    for (var key in map) {
        if (result = callback(map[key], key))
            break;
    }
    return result;
}
ts.forEachProperty = forEachProperty;
function someProperties(map, predicate) {
    for (var key in map) {
        if (!predicate || predicate(map[key], key))
            return true;
    }
    return false;
}
ts.someProperties = someProperties;
function copyProperties(source, target) {
    for (var key in source) {
        target[key] = source[key];
    }
}
ts.copyProperties = copyProperties;
function appendProperty(map, key, value) {
    if (key === undefined || value === undefined)
        return map;
    if (map === undefined)
        map = createMap();
    map[key] = value;
    return map;
}
ts.appendProperty = appendProperty;
function assign(t) {
    var args = [];
    for (var _i = 1; _i < arguments.length; _i++) {
        args[_i - 1] = arguments[_i];
    }
    for (var _a = 0, args_1 = args; _a < args_1.length; _a++) {
        var arg = args_1[_a];
        for (var _b = 0, _c = getOwnKeys(arg); _b < _c.length; _b++) {
            var p = _c[_b];
            t[p] = arg[p];
        }
    }
    return t;
}
ts.assign = assign;
function reduceProperties(map, callback, initial) {
    var result = initial;
    for (var key in map) {
        result = callback(result, map[key], String(key));
    }
    return result;
}
ts.reduceProperties = reduceProperties;
function equalOwnProperties(left, right, equalityComparer) {
    if (left === right)
        return true;
    if (!left || !right)
        return false;
    for (var key in left)
        if (hasOwnProperty.call(left, key)) {
            if (!hasOwnProperty.call(right, key) === undefined)
                return false;
            if (equalityComparer ? !equalityComparer(left[key], right[key]) : left[key] !== right[key])
                return false;
        }
    for (var key in right)
        if (hasOwnProperty.call(right, key)) {
            if (!hasOwnProperty.call(left, key))
                return false;
        }
    return true;
}
ts.equalOwnProperties = equalOwnProperties;
function arrayToMap(array, makeKey, makeValue) {
    var result = createMap();
    for (var _i = 0, array_8 = array; _i < array_8.length; _i++) {
        var value = array_8[_i];
        result[makeKey(value)] = makeValue ? makeValue(value) : value;
    }
    return result;
}
ts.arrayToMap = arrayToMap;
function isEmpty(map) {
    for (var id in map) {
        if (hasProperty(map, id)) {
            return false;
        }
    }
    return true;
}
ts.isEmpty = isEmpty;
function cloneMap(map) {
    var clone = createMap();
    copyProperties(map, clone);
    return clone;
}
ts.cloneMap = cloneMap;
function clone(object) {
    var result = {};
    for (var id in object) {
        if (hasOwnProperty.call(object, id)) {
            result[id] = object[id];
        }
    }
    return result;
}
ts.clone = clone;
function extend(first, second) {
    var result = {};
    for (var id in second)
        if (hasOwnProperty.call(second, id)) {
            result[id] = second[id];
        }
    for (var id in first)
        if (hasOwnProperty.call(first, id)) {
            result[id] = first[id];
        }
    return result;
}
ts.extend = extend;
function multiMapAdd(map, key, value) {
    var values = map[key];
    if (values) {
        values.push(value);
        return values;
    }
    else {
        return map[key] = [value];
    }
}
ts.multiMapAdd = multiMapAdd;
function multiMapRemove(map, key, value) {
    var values = map[key];
    if (values) {
        unorderedRemoveItem(values, value);
        if (!values.length) {
            delete map[key];
        }
    }
}
ts.multiMapRemove = multiMapRemove;
function isArray(value) {
    return Array.isArray ? Array.isArray(value) : value instanceof Array;
}
ts.isArray = isArray;
function noop() { }
ts.noop = noop;
function notImplemented() {
    throw new Error("Not implemented");
}
ts.notImplemented = notImplemented;
function memoize(callback) {
    var value;
    return function () {
        if (callback) {
            value = callback();
            callback = undefined;
        }
        return value;
    };
}
ts.memoize = memoize;
function chain(a, b, c, d, e) {
    if (e) {
        var args_2 = [];
        for (var i = 0; i < arguments.length; i++) {
            args_2[i] = arguments[i];
        }
        return function (t) { return compose.apply(void 0, map(args_2, function (f) { return f(t); })); };
    }
    else if (d) {
        return function (t) { return compose(a(t), b(t), c(t), d(t)); };
    }
    else if (c) {
        return function (t) { return compose(a(t), b(t), c(t)); };
    }
    else if (b) {
        return function (t) { return compose(a(t), b(t)); };
    }
    else if (a) {
        return function (t) { return compose(a(t)); };
    }
    else {
        return function (_) { return function (u) { return u; }; };
    }
}
ts.chain = chain;
function compose(a, b, c, d, e) {
    if (e) {
        var args_3 = [];
        for (var i = 0; i < arguments.length; i++) {
            args_3[i] = arguments[i];
        }
        return function (t) { return reduceLeft(args_3, function (u, f) { return f(u); }, t); };
    }
    else if (d) {
        return function (t) { return d(c(b(a(t)))); };
    }
    else if (c) {
        return function (t) { return c(b(a(t))); };
    }
    else if (b) {
        return function (t) { return b(a(t)); };
    }
    else if (a) {
        return function (t) { return a(t); };
    }
    else {
        return function (t) { return t; };
    }
}
ts.compose = compose;
function formatStringFromArgs(text, args, baseIndex) {
    baseIndex = baseIndex || 0;
    return text.replace(/{(\d+)}/g, function (_match, index) { return args[+index + baseIndex]; });
}
ts.localizedDiagnosticMessages = undefined;
function getLocaleSpecificMessage(message) {
    return ts.localizedDiagnosticMessages && ts.localizedDiagnosticMessages[message.key] || message.message;
}
ts.getLocaleSpecificMessage = getLocaleSpecificMessage;
function createFileDiagnostic(file, start, length, message) {
    var end = start + length;
    Debug.assert(start >= 0, "start must be non-negative, is " + start);
    Debug.assert(length >= 0, "length must be non-negative, is " + length);
    if (file) {
        Debug.assert(start <= file.text.length, "start must be within the bounds of the file. " + start + " > " + file.text.length);
        Debug.assert(end <= file.text.length, "end must be the bounds of the file. " + end + " > " + file.text.length);
    }
    var text = getLocaleSpecificMessage(message);
    if (arguments.length > 4) {
        text = formatStringFromArgs(text, arguments, 4);
    }
    return {
        file: file,
        start: start,
        length: length,
        messageText: text,
        category: message.category,
        code: message.code,
    };
}
ts.createFileDiagnostic = createFileDiagnostic;
function formatMessage(_dummy, message) {
    var text = getLocaleSpecificMessage(message);
    if (arguments.length > 2) {
        text = formatStringFromArgs(text, arguments, 2);
    }
    return text;
}
ts.formatMessage = formatMessage;
function createCompilerDiagnostic(message) {
    var text = getLocaleSpecificMessage(message);
    if (arguments.length > 1) {
        text = formatStringFromArgs(text, arguments, 1);
    }
    return {
        file: undefined,
        start: undefined,
        length: undefined,
        messageText: text,
        category: message.category,
        code: message.code
    };
}
ts.createCompilerDiagnostic = createCompilerDiagnostic;
function createCompilerDiagnosticFromMessageChain(chain) {
    return {
        file: undefined,
        start: undefined,
        length: undefined,
        code: chain.code,
        category: chain.category,
        messageText: chain.next ? chain : chain.messageText
    };
}
ts.createCompilerDiagnosticFromMessageChain = createCompilerDiagnosticFromMessageChain;
function chainDiagnosticMessages(details, message) {
    var text = getLocaleSpecificMessage(message);
    if (arguments.length > 2) {
        text = formatStringFromArgs(text, arguments, 2);
    }
    return {
        messageText: text,
        category: message.category,
        code: message.code,
        next: details
    };
}
ts.chainDiagnosticMessages = chainDiagnosticMessages;
function concatenateDiagnosticMessageChains(headChain, tailChain) {
    var lastChain = headChain;
    while (lastChain.next) {
        lastChain = lastChain.next;
    }
    lastChain.next = tailChain;
    return headChain;
}
ts.concatenateDiagnosticMessageChains = concatenateDiagnosticMessageChains;
function compareValues(a, b) {
    if (a === b)
        return 0;
    if (a === undefined)
        return -1;
    if (b === undefined)
        return 1;
    return a < b ? -1 : 1;
}
ts.compareValues = compareValues;
function compareStrings(a, b, ignoreCase) {
    if (a === b)
        return 0;
    if (a === undefined)
        return -1;
    if (b === undefined)
        return 1;
    if (ignoreCase) {
        if (ts.collator && String.prototype.localeCompare) {
            var result = a.localeCompare(b, undefined, { usage: "sort", sensitivity: "accent" });
            return result < 0 ? -1 : result > 0 ? 1 : 0;
        }
        a = a.toUpperCase();
        b = b.toUpperCase();
        if (a === b)
            return 0;
    }
    return a < b ? -1 : 1;
}
ts.compareStrings = compareStrings;
function compareStringsCaseInsensitive(a, b) {
    return compareStrings(a, b, true);
}
ts.compareStringsCaseInsensitive = compareStringsCaseInsensitive;
function getDiagnosticFileName(diagnostic) {
    return diagnostic.file ? diagnostic.file.fileName : undefined;
}
function compareDiagnostics(d1, d2) {
    return compareValues(getDiagnosticFileName(d1), getDiagnosticFileName(d2)) ||
        compareValues(d1.start, d2.start) ||
        compareValues(d1.length, d2.length) ||
        compareValues(d1.code, d2.code) ||
        compareMessageText(d1.messageText, d2.messageText) ||
        0;
}
ts.compareDiagnostics = compareDiagnostics;
function compareMessageText(text1, text2) {
    while (text1 && text2) {
        var string1 = typeof text1 === "string" ? text1 : text1.messageText;
        var string2 = typeof text2 === "string" ? text2 : text2.messageText;
        var res = compareValues(string1, string2);
        if (res) {
            return res;
        }
        text1 = typeof text1 === "string" ? undefined : text1.next;
        text2 = typeof text2 === "string" ? undefined : text2.next;
    }
    if (!text1 && !text2) {
        return 0;
    }
    return text1 ? 1 : -1;
}
function sortAndDeduplicateDiagnostics(diagnostics) {
    return deduplicateSortedDiagnostics(diagnostics.sort(compareDiagnostics));
}
ts.sortAndDeduplicateDiagnostics = sortAndDeduplicateDiagnostics;
function deduplicateSortedDiagnostics(diagnostics) {
    if (diagnostics.length < 2) {
        return diagnostics;
    }
    var newDiagnostics = [diagnostics[0]];
    var previousDiagnostic = diagnostics[0];
    for (var i = 1; i < diagnostics.length; i++) {
        var currentDiagnostic = diagnostics[i];
        var isDupe = compareDiagnostics(currentDiagnostic, previousDiagnostic) === 0;
        if (!isDupe) {
            newDiagnostics.push(currentDiagnostic);
            previousDiagnostic = currentDiagnostic;
        }
    }
    return newDiagnostics;
}
ts.deduplicateSortedDiagnostics = deduplicateSortedDiagnostics;
function normalizeSlashes(path) {
    return path.replace(/\\/g, "/");
}
ts.normalizeSlashes = normalizeSlashes;
function getRootLength(path) {
    if (path.charCodeAt(0) === 47) {
        if (path.charCodeAt(1) !== 47)
            return 1;
        var p1 = path.indexOf("/", 2);
        if (p1 < 0)
            return 2;
        var p2 = path.indexOf("/", p1 + 1);
        if (p2 < 0)
            return p1 + 1;
        return p2 + 1;
    }
    if (path.charCodeAt(1) === 58) {
        if (path.charCodeAt(2) === 47)
            return 3;
        return 2;
    }
    if (path.lastIndexOf("file:///", 0) === 0) {
        return "file:///".length;
    }
    var idx = path.indexOf("://");
    if (idx !== -1) {
        return idx + "://".length;
    }
    return 0;
}
ts.getRootLength = getRootLength;
ts.directorySeparator = "/";
var directorySeparatorCharCode = 47;
function getNormalizedParts(normalizedSlashedPath, rootLength) {
    var parts = normalizedSlashedPath.substr(rootLength).split(ts.directorySeparator);
    var normalized = [];
    for (var _i = 0, parts_1 = parts; _i < parts_1.length; _i++) {
        var part = parts_1[_i];
        if (part !== ".") {
            if (part === ".." && normalized.length > 0 && lastOrUndefined(normalized) !== "..") {
                normalized.pop();
            }
            else {
                if (part) {
                    normalized.push(part);
                }
            }
        }
    }
    return normalized;
}
function normalizePath(path) {
    path = normalizeSlashes(path);
    var rootLength = getRootLength(path);
    var root = path.substr(0, rootLength);
    var normalized = getNormalizedParts(path, rootLength);
    if (normalized.length) {
        var joinedParts = root + normalized.join(ts.directorySeparator);
        return pathEndsWithDirectorySeparator(path) ? joinedParts + ts.directorySeparator : joinedParts;
    }
    else {
        return root;
    }
}
ts.normalizePath = normalizePath;
function pathEndsWithDirectorySeparator(path) {
    return path.charCodeAt(path.length - 1) === directorySeparatorCharCode;
}
ts.pathEndsWithDirectorySeparator = pathEndsWithDirectorySeparator;
function getDirectoryPath(path) {
    return path.substr(0, Math.max(getRootLength(path), path.lastIndexOf(ts.directorySeparator)));
}
ts.getDirectoryPath = getDirectoryPath;
function isUrl(path) {
    return path && !isRootedDiskPath(path) && path.indexOf("://") !== -1;
}
ts.isUrl = isUrl;
function isExternalModuleNameRelative(moduleName) {
    return /^\.\.?($|[\\/])/.test(moduleName);
}
ts.isExternalModuleNameRelative = isExternalModuleNameRelative;
function getEmitScriptTarget(compilerOptions) {
    return compilerOptions.target || 0;
}
ts.getEmitScriptTarget = getEmitScriptTarget;
function getEmitModuleKind(compilerOptions) {
    return typeof compilerOptions.module === "number" ?
        compilerOptions.module :
        getEmitScriptTarget(compilerOptions) >= 2 ? ts.ModuleKind.ES2015 : ts.ModuleKind.CommonJS;
}
ts.getEmitModuleKind = getEmitModuleKind;
function getEmitModuleResolutionKind(compilerOptions) {
    var moduleResolution = compilerOptions.moduleResolution;
    if (moduleResolution === undefined) {
        moduleResolution = getEmitModuleKind(compilerOptions) === ts.ModuleKind.CommonJS ? ts.ModuleResolutionKind.NodeJs : ts.ModuleResolutionKind.Classic;
    }
    return moduleResolution;
}
ts.getEmitModuleResolutionKind = getEmitModuleResolutionKind;
function hasZeroOrOneAsteriskCharacter(str) {
    var seenAsterisk = false;
    for (var i = 0; i < str.length; i++) {
        if (str.charCodeAt(i) === 42) {
            if (!seenAsterisk) {
                seenAsterisk = true;
            }
            else {
                return false;
            }
        }
    }
    return true;
}
ts.hasZeroOrOneAsteriskCharacter = hasZeroOrOneAsteriskCharacter;
function isRootedDiskPath(path) {
    return getRootLength(path) !== 0;
}
ts.isRootedDiskPath = isRootedDiskPath;
function convertToRelativePath(absoluteOrRelativePath, basePath, getCanonicalFileName) {
    return !isRootedDiskPath(absoluteOrRelativePath)
        ? absoluteOrRelativePath
        : getRelativePathToDirectoryOrUrl(basePath, absoluteOrRelativePath, basePath, getCanonicalFileName, false);
}
ts.convertToRelativePath = convertToRelativePath;
function normalizedPathComponents(path, rootLength) {
    var normalizedParts = getNormalizedParts(path, rootLength);
    return [path.substr(0, rootLength)].concat(normalizedParts);
}
function getNormalizedPathComponents(path, currentDirectory) {
    path = normalizeSlashes(path);
    var rootLength = getRootLength(path);
    if (rootLength === 0) {
        path = combinePaths(normalizeSlashes(currentDirectory), path);
        rootLength = getRootLength(path);
    }
    return normalizedPathComponents(path, rootLength);
}
ts.getNormalizedPathComponents = getNormalizedPathComponents;
function getNormalizedAbsolutePath(fileName, currentDirectory) {
    return getNormalizedPathFromPathComponents(getNormalizedPathComponents(fileName, currentDirectory));
}
ts.getNormalizedAbsolutePath = getNormalizedAbsolutePath;
function getNormalizedPathFromPathComponents(pathComponents) {
    if (pathComponents && pathComponents.length) {
        return pathComponents[0] + pathComponents.slice(1).join(ts.directorySeparator);
    }
}
ts.getNormalizedPathFromPathComponents = getNormalizedPathFromPathComponents;
function getNormalizedPathComponentsOfUrl(url) {
    var urlLength = url.length;
    var rootLength = url.indexOf("://") + "://".length;
    while (rootLength < urlLength) {
        if (url.charCodeAt(rootLength) === 47) {
            rootLength++;
        }
        else {
            break;
        }
    }
    if (rootLength === urlLength) {
        return [url];
    }
    var indexOfNextSlash = url.indexOf(ts.directorySeparator, rootLength);
    if (indexOfNextSlash !== -1) {
        rootLength = indexOfNextSlash + 1;
        return normalizedPathComponents(url, rootLength);
    }
    else {
        return [url + ts.directorySeparator];
    }
}
function getNormalizedPathOrUrlComponents(pathOrUrl, currentDirectory) {
    if (isUrl(pathOrUrl)) {
        return getNormalizedPathComponentsOfUrl(pathOrUrl);
    }
    else {
        return getNormalizedPathComponents(pathOrUrl, currentDirectory);
    }
}
function getRelativePathToDirectoryOrUrl(directoryPathOrUrl, relativeOrAbsolutePath, currentDirectory, getCanonicalFileName, isAbsolutePathAnUrl) {
    var pathComponents = getNormalizedPathOrUrlComponents(relativeOrAbsolutePath, currentDirectory);
    var directoryComponents = getNormalizedPathOrUrlComponents(directoryPathOrUrl, currentDirectory);
    if (directoryComponents.length > 1 && lastOrUndefined(directoryComponents) === "") {
        directoryComponents.length--;
    }
    var joinStartIndex;
    for (joinStartIndex = 0; joinStartIndex < pathComponents.length && joinStartIndex < directoryComponents.length; joinStartIndex++) {
        if (getCanonicalFileName(directoryComponents[joinStartIndex]) !== getCanonicalFileName(pathComponents[joinStartIndex])) {
            break;
        }
    }
    if (joinStartIndex) {
        var relativePath = "";
        var relativePathComponents = pathComponents.slice(joinStartIndex, pathComponents.length);
        for (; joinStartIndex < directoryComponents.length; joinStartIndex++) {
            if (directoryComponents[joinStartIndex] !== "") {
                relativePath = relativePath + ".." + ts.directorySeparator;
            }
        }
        return relativePath + relativePathComponents.join(ts.directorySeparator);
    }
    var absolutePath = getNormalizedPathFromPathComponents(pathComponents);
    if (isAbsolutePathAnUrl && isRootedDiskPath(absolutePath)) {
        absolutePath = "file:///" + absolutePath;
    }
    return absolutePath;
}
ts.getRelativePathToDirectoryOrUrl = getRelativePathToDirectoryOrUrl;
function getBaseFileName(path) {
    if (path === undefined) {
        return undefined;
    }
    var i = path.lastIndexOf(ts.directorySeparator);
    return i < 0 ? path : path.substring(i + 1);
}
ts.getBaseFileName = getBaseFileName;
function combinePaths(path1, path2) {
    if (!(path1 && path1.length))
        return path2;
    if (!(path2 && path2.length))
        return path1;
    if (getRootLength(path2) !== 0)
        return path2;
    if (path1.charAt(path1.length - 1) === ts.directorySeparator)
        return path1 + path2;
    return path1 + ts.directorySeparator + path2;
}
ts.combinePaths = combinePaths;
function removeTrailingDirectorySeparator(path) {
    if (path.charAt(path.length - 1) === ts.directorySeparator) {
        return path.substr(0, path.length - 1);
    }
    return path;
}
ts.removeTrailingDirectorySeparator = removeTrailingDirectorySeparator;
function ensureTrailingDirectorySeparator(path) {
    if (path.charAt(path.length - 1) !== ts.directorySeparator) {
        return path + ts.directorySeparator;
    }
    return path;
}
ts.ensureTrailingDirectorySeparator = ensureTrailingDirectorySeparator;
function comparePaths(a, b, currentDirectory, ignoreCase) {
    if (a === b)
        return 0;
    if (a === undefined)
        return -1;
    if (b === undefined)
        return 1;
    a = removeTrailingDirectorySeparator(a);
    b = removeTrailingDirectorySeparator(b);
    var aComponents = getNormalizedPathComponents(a, currentDirectory);
    var bComponents = getNormalizedPathComponents(b, currentDirectory);
    var sharedLength = Math.min(aComponents.length, bComponents.length);
    for (var i = 0; i < sharedLength; i++) {
        var result = compareStrings(aComponents[i], bComponents[i], ignoreCase);
        if (result !== 0) {
            return result;
        }
    }
    return compareValues(aComponents.length, bComponents.length);
}
ts.comparePaths = comparePaths;
function containsPath(parent, child, currentDirectory, ignoreCase) {
    if (parent === undefined || child === undefined)
        return false;
    if (parent === child)
        return true;
    parent = removeTrailingDirectorySeparator(parent);
    child = removeTrailingDirectorySeparator(child);
    if (parent === child)
        return true;
    var parentComponents = getNormalizedPathComponents(parent, currentDirectory);
    var childComponents = getNormalizedPathComponents(child, currentDirectory);
    if (childComponents.length < parentComponents.length) {
        return false;
    }
    for (var i = 0; i < parentComponents.length; i++) {
        var result = compareStrings(parentComponents[i], childComponents[i], ignoreCase);
        if (result !== 0) {
            return false;
        }
    }
    return true;
}
ts.containsPath = containsPath;
function startsWith(str, prefix) {
    return str.lastIndexOf(prefix, 0) === 0;
}
ts.startsWith = startsWith;
function endsWith(str, suffix) {
    var expectedPos = str.length - suffix.length;
    return expectedPos >= 0 && str.indexOf(suffix, expectedPos) === expectedPos;
}
ts.endsWith = endsWith;
function hasExtension(fileName) {
    return getBaseFileName(fileName).indexOf(".") >= 0;
}
ts.hasExtension = hasExtension;
function fileExtensionIs(path, extension) {
    return path.length > extension.length && endsWith(path, extension);
}
ts.fileExtensionIs = fileExtensionIs;
function fileExtensionIsAny(path, extensions) {
    for (var _i = 0, extensions_1 = extensions; _i < extensions_1.length; _i++) {
        var extension = extensions_1[_i];
        if (fileExtensionIs(path, extension)) {
            return true;
        }
    }
    return false;
}
ts.fileExtensionIsAny = fileExtensionIsAny;
var reservedCharacterPattern = /[^\w\s\/]/g;
var wildcardCharCodes = [42, 63];
var singleAsteriskRegexFragmentFiles = "([^./]|(\\.(?!min\\.js$))?)*";
var singleAsteriskRegexFragmentOther = "[^/]*";
function getRegularExpressionForWildcard(specs, basePath, usage) {
    if (specs === undefined || specs.length === 0) {
        return undefined;
    }
    var replaceWildcardCharacter = usage === "files" ? replaceWildCardCharacterFiles : replaceWildCardCharacterOther;
    var singleAsteriskRegexFragment = usage === "files" ? singleAsteriskRegexFragmentFiles : singleAsteriskRegexFragmentOther;
    var doubleAsteriskRegexFragment = usage === "exclude" ? "(/.+?)?" : "(/[^/.][^/]*)*?";
    var pattern = "";
    var hasWrittenSubpattern = false;
    for (var _i = 0, specs_1 = specs; _i < specs_1.length; _i++) {
        var spec = specs_1[_i];
        if (!spec) {
            continue;
        }
        var subPattern = getSubPatternFromSpec(spec, basePath, usage, singleAsteriskRegexFragment, doubleAsteriskRegexFragment, replaceWildcardCharacter);
        if (subPattern === undefined) {
            continue;
        }
        if (hasWrittenSubpattern) {
            pattern += "|";
        }
        pattern += "(" + subPattern + ")";
        hasWrittenSubpattern = true;
    }
    if (!pattern) {
        return undefined;
    }
    var terminator = usage === "exclude" ? "($|/)" : "$";
    return "^(" + pattern + ")" + terminator;
}
ts.getRegularExpressionForWildcard = getRegularExpressionForWildcard;
function isImplicitGlob(lastPathComponent) {
    return !/[.*?]/.test(lastPathComponent);
}
ts.isImplicitGlob = isImplicitGlob;
function getSubPatternFromSpec(spec, basePath, usage, singleAsteriskRegexFragment, doubleAsteriskRegexFragment, replaceWildcardCharacter) {
    var subpattern = "";
    var hasRecursiveDirectoryWildcard = false;
    var hasWrittenComponent = false;
    var components = getNormalizedPathComponents(spec, basePath);
    var lastComponent = lastOrUndefined(components);
    if (usage !== "exclude" && lastComponent === "**") {
        return undefined;
    }
    components[0] = removeTrailingDirectorySeparator(components[0]);
    if (isImplicitGlob(lastComponent)) {
        components.push("**", "*");
    }
    var optionalCount = 0;
    for (var _i = 0, components_1 = components; _i < components_1.length; _i++) {
        var component = components_1[_i];
        if (component === "**") {
            if (hasRecursiveDirectoryWildcard) {
                return undefined;
            }
            subpattern += doubleAsteriskRegexFragment;
            hasRecursiveDirectoryWildcard = true;
        }
        else {
            if (usage === "directories") {
                subpattern += "(";
                optionalCount++;
            }
            if (hasWrittenComponent) {
                subpattern += ts.directorySeparator;
            }
            if (usage !== "exclude") {
                if (component.charCodeAt(0) === 42) {
                    subpattern += "([^./]" + singleAsteriskRegexFragment + ")?";
                    component = component.substr(1);
                }
                else if (component.charCodeAt(0) === 63) {
                    subpattern += "[^./]";
                    component = component.substr(1);
                }
            }
            subpattern += component.replace(reservedCharacterPattern, replaceWildcardCharacter);
        }
        hasWrittenComponent = true;
    }
    while (optionalCount > 0) {
        subpattern += ")?";
        optionalCount--;
    }
    return subpattern;
}
function replaceWildCardCharacterFiles(match) {
    return replaceWildcardCharacter(match, singleAsteriskRegexFragmentFiles);
}
function replaceWildCardCharacterOther(match) {
    return replaceWildcardCharacter(match, singleAsteriskRegexFragmentOther);
}
function replaceWildcardCharacter(match, singleAsteriskRegexFragment) {
    return match === "*" ? singleAsteriskRegexFragment : match === "?" ? "[^/]" : "\\" + match;
}
function getFileMatcherPatterns(path, excludes, includes, useCaseSensitiveFileNames, currentDirectory) {
    path = normalizePath(path);
    currentDirectory = normalizePath(currentDirectory);
    var absolutePath = combinePaths(currentDirectory, path);
    return {
        includeFilePattern: getRegularExpressionForWildcard(includes, absolutePath, "files"),
        includeDirectoryPattern: getRegularExpressionForWildcard(includes, absolutePath, "directories"),
        excludePattern: getRegularExpressionForWildcard(excludes, absolutePath, "exclude"),
        basePaths: getBasePaths(path, includes, useCaseSensitiveFileNames)
    };
}
ts.getFileMatcherPatterns = getFileMatcherPatterns;
function matchFiles(path, extensions, excludes, includes, useCaseSensitiveFileNames, currentDirectory, getFileSystemEntries) {
    path = normalizePath(path);
    currentDirectory = normalizePath(currentDirectory);
    var patterns = getFileMatcherPatterns(path, excludes, includes, useCaseSensitiveFileNames, currentDirectory);
    var regexFlag = useCaseSensitiveFileNames ? "" : "i";
    var includeFileRegex = patterns.includeFilePattern && new RegExp(patterns.includeFilePattern, regexFlag);
    var includeDirectoryRegex = patterns.includeDirectoryPattern && new RegExp(patterns.includeDirectoryPattern, regexFlag);
    var excludeRegex = patterns.excludePattern && new RegExp(patterns.excludePattern, regexFlag);
    var result = [];
    for (var _i = 0, _a = patterns.basePaths; _i < _a.length; _i++) {
        var basePath = _a[_i];
        visitDirectory(basePath, combinePaths(currentDirectory, basePath));
    }
    return result;
    function visitDirectory(path, absolutePath) {
        var _a = getFileSystemEntries(path), files = _a.files, directories = _a.directories;
        for (var _i = 0, files_1 = files; _i < files_1.length; _i++) {
            var current = files_1[_i];
            var name_1 = combinePaths(path, current);
            var absoluteName = combinePaths(absolutePath, current);
            if ((!extensions || fileExtensionIsAny(name_1, extensions)) &&
                (!includeFileRegex || includeFileRegex.test(absoluteName)) &&
                (!excludeRegex || !excludeRegex.test(absoluteName))) {
                result.push(name_1);
            }
        }
        for (var _b = 0, directories_1 = directories; _b < directories_1.length; _b++) {
            var current = directories_1[_b];
            var name_2 = combinePaths(path, current);
            var absoluteName = combinePaths(absolutePath, current);
            if ((!includeDirectoryRegex || includeDirectoryRegex.test(absoluteName)) &&
                (!excludeRegex || !excludeRegex.test(absoluteName))) {
                visitDirectory(name_2, absoluteName);
            }
        }
    }
}
ts.matchFiles = matchFiles;
function getBasePaths(path, includes, useCaseSensitiveFileNames) {
    var basePaths = [path];
    if (includes) {
        var includeBasePaths = [];
        for (var _i = 0, includes_1 = includes; _i < includes_1.length; _i++) {
            var include = includes_1[_i];
            var absolute = isRootedDiskPath(include) ? include : normalizePath(combinePaths(path, include));
            includeBasePaths.push(getIncludeBasePath(absolute));
        }
        includeBasePaths.sort(useCaseSensitiveFileNames ? compareStrings : compareStringsCaseInsensitive);
        var _loop_1 = function (includeBasePath) {
            if (ts.every(basePaths, function (basePath) { return !containsPath(basePath, includeBasePath, path, !useCaseSensitiveFileNames); })) {
                basePaths.push(includeBasePath);
            }
        };
        for (var _a = 0, includeBasePaths_1 = includeBasePaths; _a < includeBasePaths_1.length; _a++) {
            var includeBasePath = includeBasePaths_1[_a];
            _loop_1(includeBasePath);
        }
    }
    return basePaths;
}
function getIncludeBasePath(absolute) {
    var wildcardOffset = indexOfAnyCharCode(absolute, wildcardCharCodes);
    if (wildcardOffset < 0) {
        return !hasExtension(absolute)
            ? absolute
            : removeTrailingDirectorySeparator(getDirectoryPath(absolute));
    }
    return absolute.substring(0, absolute.lastIndexOf(ts.directorySeparator, wildcardOffset));
}
function ensureScriptKind(fileName, scriptKind) {
    return (scriptKind || getScriptKindFromFileName(fileName)) || 3;
}
ts.ensureScriptKind = ensureScriptKind;
function getScriptKindFromFileName(fileName) {
    var ext = fileName.substr(fileName.lastIndexOf("."));
    switch (ext.toLowerCase()) {
        case ".js":
            return 1;
        case ".jsx":
            return 2;
        case ".ts":
            return 3;
        case ".tsx":
            return 4;
        default:
            return 0;
    }
}
ts.getScriptKindFromFileName = getScriptKindFromFileName;
ts.supportedTypeScriptExtensions = [".ts", ".tsx", ".d.ts"];
ts.supportedTypescriptExtensionsForExtractExtension = [".d.ts", ".ts", ".tsx"];
ts.supportedJavascriptExtensions = [".js", ".jsx"];
var allSupportedExtensions = ts.supportedTypeScriptExtensions.concat(ts.supportedJavascriptExtensions);
function getSupportedExtensions(options, extraFileExtensions) {
    var needAllExtensions = options && options.allowJs;
    if (!extraFileExtensions || extraFileExtensions.length === 0) {
        return needAllExtensions ? allSupportedExtensions : ts.supportedTypeScriptExtensions;
    }
    var extensions = (needAllExtensions ? allSupportedExtensions : ts.supportedTypeScriptExtensions).slice(0);
    for (var _i = 0, extraFileExtensions_1 = extraFileExtensions; _i < extraFileExtensions_1.length; _i++) {
        var extInfo = extraFileExtensions_1[_i];
        if (needAllExtensions || extInfo.scriptKind === 3) {
            extensions.push(extInfo.extension);
        }
    }
    return extensions;
}
ts.getSupportedExtensions = getSupportedExtensions;
function hasJavaScriptFileExtension(fileName) {
    return forEach(ts.supportedJavascriptExtensions, function (extension) { return fileExtensionIs(fileName, extension); });
}
ts.hasJavaScriptFileExtension = hasJavaScriptFileExtension;
function hasTypeScriptFileExtension(fileName) {
    return forEach(ts.supportedTypeScriptExtensions, function (extension) { return fileExtensionIs(fileName, extension); });
}
ts.hasTypeScriptFileExtension = hasTypeScriptFileExtension;
function isSupportedSourceFileName(fileName, compilerOptions, extraFileExtensions) {
    if (!fileName) {
        return false;
    }
    for (var _i = 0, _a = getSupportedExtensions(compilerOptions, extraFileExtensions); _i < _a.length; _i++) {
        var extension = _a[_i];
        if (fileExtensionIs(fileName, extension)) {
            return true;
        }
    }
    return false;
}
ts.isSupportedSourceFileName = isSupportedSourceFileName;
function getExtensionPriority(path, supportedExtensions) {
    for (var i = supportedExtensions.length - 1; i >= 0; i--) {
        if (fileExtensionIs(path, supportedExtensions[i])) {
            return adjustExtensionPriority(i);
        }
    }
    return 0;
}
ts.getExtensionPriority = getExtensionPriority;
function adjustExtensionPriority(extensionPriority) {
    if (extensionPriority < 2) {
        return 0;
    }
    else if (extensionPriority < 5) {
        return 2;
    }
    else {
        return 5;
    }
}
ts.adjustExtensionPriority = adjustExtensionPriority;
function getNextLowestExtensionPriority(extensionPriority) {
    if (extensionPriority < 2) {
        return 2;
    }
    else {
        return 5;
    }
}
ts.getNextLowestExtensionPriority = getNextLowestExtensionPriority;
var extensionsToRemove = [".d.ts", ".ts", ".js", ".tsx", ".jsx"];
function removeFileExtension(path) {
    for (var _i = 0, extensionsToRemove_1 = extensionsToRemove; _i < extensionsToRemove_1.length; _i++) {
        var ext = extensionsToRemove_1[_i];
        var extensionless = tryRemoveExtension(path, ext);
        if (extensionless !== undefined) {
            return extensionless;
        }
    }
    return path;
}
ts.removeFileExtension = removeFileExtension;
function tryRemoveExtension(path, extension) {
    return fileExtensionIs(path, extension) ? removeExtension(path, extension) : undefined;
}
ts.tryRemoveExtension = tryRemoveExtension;
function removeExtension(path, extension) {
    return path.substring(0, path.length - extension.length);
}
ts.removeExtension = removeExtension;
function changeExtension(path, newExtension) {
    return (removeFileExtension(path) + newExtension);
}
ts.changeExtension = changeExtension;
function Symbol(flags, name) {
    this.flags = flags;
    this.name = name;
    this.declarations = undefined;
}
function Type(_checker, flags) {
    this.flags = flags;
}
function Signature() {
}
function Node(kind, pos, end) {
    this.id = 0;
    this.kind = kind;
    this.pos = pos;
    this.end = end;
    this.flags = 0;
    this.modifierFlagsCache = 0;
    this.transformFlags = 0;
    this.parent = undefined;
    this.original = undefined;
}
ts.objectAllocator = {
    getNodeConstructor: function () { return Node; },
    getTokenConstructor: function () { return Node; },
    getIdentifierConstructor: function () { return Node; },
    getSourceFileConstructor: function () { return Node; },
    getSymbolConstructor: function () { return Symbol; },
    getTypeConstructor: function () { return Type; },
    getSignatureConstructor: function () { return Signature; }
};
var Debug;
(function (Debug) {
    Debug.currentAssertionLevel = 0;
    function shouldAssert(level) {
        return Debug.currentAssertionLevel >= level;
    }
    Debug.shouldAssert = shouldAssert;
    function assert(expression, message, verboseDebugInfo) {
        if (!expression) {
            var verboseDebugString = "";
            if (verboseDebugInfo) {
                verboseDebugString = "\r\nVerbose Debug Information: " + verboseDebugInfo();
            }
            debugger;
            throw new Error("Debug Failure. False expression: " + (message || "") + verboseDebugString);
        }
    }
    Debug.assert = assert;
    function fail(message) {
        Debug.assert(false, message);
    }
    Debug.fail = fail;
})(Debug = ts.Debug || (ts.Debug = {}));
function orderedRemoveItem(array, item) {
    for (var i = 0; i < array.length; i++) {
        if (array[i] === item) {
            orderedRemoveItemAt(array, i);
            return true;
        }
    }
    return false;
}
ts.orderedRemoveItem = orderedRemoveItem;
function orderedRemoveItemAt(array, index) {
    for (var i = index; i < array.length - 1; i++) {
        array[i] = array[i + 1];
    }
    array.pop();
}
ts.orderedRemoveItemAt = orderedRemoveItemAt;
function unorderedRemoveItemAt(array, index) {
    array[index] = array[array.length - 1];
    array.pop();
}
ts.unorderedRemoveItemAt = unorderedRemoveItemAt;
function unorderedRemoveItem(array, item) {
    unorderedRemoveFirstItemWhere(array, function (element) { return element === item; });
}
ts.unorderedRemoveItem = unorderedRemoveItem;
function unorderedRemoveFirstItemWhere(array, predicate) {
    for (var i = 0; i < array.length; i++) {
        if (predicate(array[i])) {
            unorderedRemoveItemAt(array, i);
            break;
        }
    }
}
function createGetCanonicalFileName(useCaseSensitiveFileNames) {
    return useCaseSensitiveFileNames
        ? (function (fileName) { return fileName; })
        : (function (fileName) { return fileName.toLowerCase(); });
}
ts.createGetCanonicalFileName = createGetCanonicalFileName;
function matchPatternOrExact(patternStrings, candidate) {
    var patterns = [];
    for (var _i = 0, patternStrings_1 = patternStrings; _i < patternStrings_1.length; _i++) {
        var patternString = patternStrings_1[_i];
        var pattern = tryParsePattern(patternString);
        if (pattern) {
            patterns.push(pattern);
        }
        else if (patternString === candidate) {
            return patternString;
        }
    }
    return findBestPatternMatch(patterns, function (_) { return _; }, candidate);
}
ts.matchPatternOrExact = matchPatternOrExact;
function patternText(_a) {
    var prefix = _a.prefix, suffix = _a.suffix;
    return prefix + "*" + suffix;
}
ts.patternText = patternText;
function matchedText(pattern, candidate) {
    Debug.assert(isPatternMatch(pattern, candidate));
    return candidate.substr(pattern.prefix.length, candidate.length - pattern.suffix.length);
}
ts.matchedText = matchedText;
function findBestPatternMatch(values, getPattern, candidate) {
    var matchedValue = undefined;
    var longestMatchPrefixLength = -1;
    for (var _i = 0, values_1 = values; _i < values_1.length; _i++) {
        var v = values_1[_i];
        var pattern = getPattern(v);
        if (isPatternMatch(pattern, candidate) && pattern.prefix.length > longestMatchPrefixLength) {
            longestMatchPrefixLength = pattern.prefix.length;
            matchedValue = v;
        }
    }
    return matchedValue;
}
ts.findBestPatternMatch = findBestPatternMatch;
function isPatternMatch(_a, candidate) {
    var prefix = _a.prefix, suffix = _a.suffix;
    return candidate.length >= prefix.length + suffix.length &&
        startsWith(candidate, prefix) &&
        endsWith(candidate, suffix);
}
function tryParsePattern(pattern) {
    Debug.assert(hasZeroOrOneAsteriskCharacter(pattern));
    var indexOfStar = pattern.indexOf("*");
    return indexOfStar === -1 ? undefined : {
        prefix: pattern.substr(0, indexOfStar),
        suffix: pattern.substr(indexOfStar + 1)
    };
}
ts.tryParsePattern = tryParsePattern;
function positionIsSynthesized(pos) {
    return !(pos >= 0);
}
ts.positionIsSynthesized = positionIsSynthesized;
function extensionIsTypeScript(ext) {
    return ext <= ts.Extension.LastTypeScriptExtension;
}
ts.extensionIsTypeScript = extensionIsTypeScript;
function extensionFromPath(path) {
    var ext = tryGetExtensionFromPath(path);
    if (ext !== undefined) {
        return ext;
    }
    Debug.fail("File " + path + " has unknown extension.");
}
ts.extensionFromPath = extensionFromPath;
function tryGetExtensionFromPath(path) {
    if (fileExtensionIs(path, ".d.ts")) {
        return ts.Extension.Dts;
    }
    if (fileExtensionIs(path, ".ts")) {
        return ts.Extension.Ts;
    }
    if (fileExtensionIs(path, ".tsx")) {
        return ts.Extension.Tsx;
    }
    if (fileExtensionIs(path, ".js")) {
        return ts.Extension.Js;
    }
    if (fileExtensionIs(path, ".jsx")) {
        return ts.Extension.Jsx;
    }
}
ts.tryGetExtensionFromPath = tryGetExtensionFromPath;

})(ts || (ts = {})); var ts; (function (ts) {

ts.sys = (function () {
    function getWScriptSystem() {
        var fso = new ActiveXObject("Scripting.FileSystemObject");
        var shell = new ActiveXObject("WScript.Shell");
        var fileStream = new ActiveXObject("ADODB.Stream");
        fileStream.Type = 2;
        var binaryStream = new ActiveXObject("ADODB.Stream");
        binaryStream.Type = 1;
        var args = [];
        for (var i = 0; i < WScript.Arguments.length; i++) {
            args[i] = WScript.Arguments.Item(i);
        }
        function readFile(fileName, encoding) {
            if (!fso.FileExists(fileName)) {
                return undefined;
            }
            fileStream.Open();
            try {
                if (encoding) {
                    fileStream.Charset = encoding;
                    fileStream.LoadFromFile(fileName);
                }
                else {
                    fileStream.Charset = "x-ansi";
                    fileStream.LoadFromFile(fileName);
                    var bom = fileStream.ReadText(2) || "";
                    fileStream.Position = 0;
                    fileStream.Charset = bom.length >= 2 && (bom.charCodeAt(0) === 0xFF && bom.charCodeAt(1) === 0xFE || bom.charCodeAt(0) === 0xFE && bom.charCodeAt(1) === 0xFF) ? "unicode" : "utf-8";
                }
                return fileStream.ReadText();
            }
            catch (e) {
                throw e;
            }
            finally {
                fileStream.Close();
            }
        }
        function writeFile(fileName, data, writeByteOrderMark) {
            fileStream.Open();
            binaryStream.Open();
            try {
                fileStream.Charset = "utf-8";
                fileStream.WriteText(data);
                if (writeByteOrderMark) {
                    fileStream.Position = 0;
                }
                else {
                    fileStream.Position = 3;
                }
                fileStream.CopyTo(binaryStream);
                binaryStream.SaveToFile(fileName, 2);
            }
            finally {
                binaryStream.Close();
                fileStream.Close();
            }
        }
        function getNames(collection) {
            var result = [];
            for (var e = new Enumerator(collection); !e.atEnd(); e.moveNext()) {
                result.push(e.item().Name);
            }
            return result.sort();
        }
        function getDirectories(path) {
            var folder = fso.GetFolder(path);
            return getNames(folder.subfolders);
        }
        function getAccessibleFileSystemEntries(path) {
            try {
                var folder = fso.GetFolder(path || ".");
                var files = getNames(folder.files);
                var directories = getNames(folder.subfolders);
                return { files: files, directories: directories };
            }
            catch (e) {
                return { files: [], directories: [] };
            }
        }
        function readDirectory(path, extensions, excludes, includes) {
            return ts.matchFiles(path, extensions, excludes, includes, false, shell.CurrentDirectory, getAccessibleFileSystemEntries);
        }
        var wscriptSystem = {
            args: args,
            newLine: "\r\n",
            useCaseSensitiveFileNames: false,
            write: function (s) {
                WScript.StdOut.Write(s);
            },
            readFile: readFile,
            writeFile: writeFile,
            resolvePath: function (path) {
                return fso.GetAbsolutePathName(path);
            },
            fileExists: function (path) {
                return fso.FileExists(path);
            },
            directoryExists: function (path) {
                return fso.FolderExists(path);
            },
            createDirectory: function (directoryName) {
                if (!wscriptSystem.directoryExists(directoryName)) {
                    fso.CreateFolder(directoryName);
                }
            },
            getExecutingFilePath: function () {
                return WScript.ScriptFullName;
            },
            getCurrentDirectory: function () {
                return shell.CurrentDirectory;
            },
            getDirectories: getDirectories,
            getEnvironmentVariable: function (name) {
                return new ActiveXObject("WScript.Shell").ExpandEnvironmentStrings("%" + name + "%");
            },
            readDirectory: readDirectory,
            exit: function (exitCode) {
                try {
                    WScript.Quit(exitCode);
                }
                catch (e) {
                }
            }
        };
        return wscriptSystem;
    }
    function getNodeSystem() {
        var _fs = require("fs");
        var _path = require("path");
        var _os = require("os");
        var _crypto = require("crypto");
        var useNonPollingWatchers = process.env["TSC_NONPOLLING_WATCHER"];
        function createWatchedFileSet() {
            var dirWatchers = ts.createMap();
            var fileWatcherCallbacks = ts.createMap();
            return { addFile: addFile, removeFile: removeFile };
            function reduceDirWatcherRefCountForFile(fileName) {
                var dirName = ts.getDirectoryPath(fileName);
                var watcher = dirWatchers[dirName];
                if (watcher) {
                    watcher.referenceCount -= 1;
                    if (watcher.referenceCount <= 0) {
                        watcher.close();
                        delete dirWatchers[dirName];
                    }
                }
            }
            function addDirWatcher(dirPath) {
                var watcher = dirWatchers[dirPath];
                if (watcher) {
                    watcher.referenceCount += 1;
                    return;
                }
                watcher = _fs.watch(dirPath, { persistent: true }, function (eventName, relativeFileName) { return fileEventHandler(eventName, relativeFileName, dirPath); });
                watcher.referenceCount = 1;
                dirWatchers[dirPath] = watcher;
                return;
            }
            function addFileWatcherCallback(filePath, callback) {
                ts.multiMapAdd(fileWatcherCallbacks, filePath, callback);
            }
            function addFile(fileName, callback) {
                addFileWatcherCallback(fileName, callback);
                addDirWatcher(ts.getDirectoryPath(fileName));
                return { fileName: fileName, callback: callback };
            }
            function removeFile(watchedFile) {
                removeFileWatcherCallback(watchedFile.fileName, watchedFile.callback);
                reduceDirWatcherRefCountForFile(watchedFile.fileName);
            }
            function removeFileWatcherCallback(filePath, callback) {
                ts.multiMapRemove(fileWatcherCallbacks, filePath, callback);
            }
            function fileEventHandler(eventName, relativeFileName, baseDirPath) {
                var fileName = typeof relativeFileName !== "string"
                    ? undefined
                    : ts.getNormalizedAbsolutePath(relativeFileName, baseDirPath);
                if ((eventName === "change" || eventName === "rename") && fileWatcherCallbacks[fileName]) {
                    for (var _i = 0, _a = fileWatcherCallbacks[fileName]; _i < _a.length; _i++) {
                        var fileCallback = _a[_i];
                        fileCallback(fileName);
                    }
                }
            }
        }
        var watchedFileSet = createWatchedFileSet();
        function isNode4OrLater() {
            return parseInt(process.version.charAt(1)) >= 4;
        }
        function isFileSystemCaseSensitive() {
            if (platform === "win32" || platform === "win64") {
                return false;
            }
            return !fileExists(__filename.toUpperCase()) || !fileExists(__filename.toLowerCase());
        }
        var platform = _os.platform();
        var useCaseSensitiveFileNames = isFileSystemCaseSensitive();
        function readFile(fileName, _encoding) {
            if (!fileExists(fileName)) {
                return undefined;
            }
            var buffer = _fs.readFileSync(fileName);
            var len = buffer.length;
            if (len >= 2 && buffer[0] === 0xFE && buffer[1] === 0xFF) {
                len &= ~1;
                for (var i = 0; i < len; i += 2) {
                    var temp = buffer[i];
                    buffer[i] = buffer[i + 1];
                    buffer[i + 1] = temp;
                }
                return buffer.toString("utf16le", 2);
            }
            if (len >= 2 && buffer[0] === 0xFF && buffer[1] === 0xFE) {
                return buffer.toString("utf16le", 2);
            }
            if (len >= 3 && buffer[0] === 0xEF && buffer[1] === 0xBB && buffer[2] === 0xBF) {
                return buffer.toString("utf8", 3);
            }
            return buffer.toString("utf8");
        }
        function writeFile(fileName, data, writeByteOrderMark) {
            if (writeByteOrderMark) {
                data = "\uFEFF" + data;
            }
            var fd;
            try {
                fd = _fs.openSync(fileName, "w");
                _fs.writeSync(fd, data, undefined, "utf8");
            }
            finally {
                if (fd !== undefined) {
                    _fs.closeSync(fd);
                }
            }
        }
        function getAccessibleFileSystemEntries(path) {
            try {
                var entries = _fs.readdirSync(path || ".").sort();
                var files = [];
                var directories = [];
                for (var _i = 0, entries_1 = entries; _i < entries_1.length; _i++) {
                    var entry = entries_1[_i];
                    if (entry === "." || entry === "..") {
                        continue;
                    }
                    var name_3 = ts.combinePaths(path, entry);
                    var stat = void 0;
                    try {
                        stat = _fs.statSync(name_3);
                    }
                    catch (e) {
                        continue;
                    }
                    if (stat.isFile()) {
                        files.push(entry);
                    }
                    else if (stat.isDirectory()) {
                        directories.push(entry);
                    }
                }
                return { files: files, directories: directories };
            }
            catch (e) {
                return { files: [], directories: [] };
            }
        }
        function readDirectory(path, extensions, excludes, includes) {
            return ts.matchFiles(path, extensions, excludes, includes, useCaseSensitiveFileNames, process.cwd(), getAccessibleFileSystemEntries);
        }
        function fileSystemEntryExists(path, entryKind) {
            try {
                var stat = _fs.statSync(path);
                switch (entryKind) {
                    case 0: return stat.isFile();
                    case 1: return stat.isDirectory();
                }
            }
            catch (e) {
                return false;
            }
        }
        function fileExists(path) {
            return fileSystemEntryExists(path, 0);
        }
        function directoryExists(path) {
            return fileSystemEntryExists(path, 1);
        }
        function getDirectories(path) {
            return ts.filter(_fs.readdirSync(path), function (dir) { return fileSystemEntryExists(ts.combinePaths(path, dir), 1); });
        }
        var noOpFileWatcher = { close: ts.noop };
        var nodeSystem = {
            args: process.argv.slice(2),
            newLine: _os.EOL,
            useCaseSensitiveFileNames: useCaseSensitiveFileNames,
            write: function (s) {
                process.stdout.write(s);
            },
            readFile: readFile,
            writeFile: writeFile,
            watchFile: function (fileName, callback, pollingInterval) {
                if (useNonPollingWatchers) {
                    var watchedFile_1 = watchedFileSet.addFile(fileName, callback);
                    return {
                        close: function () { return watchedFileSet.removeFile(watchedFile_1); }
                    };
                }
                else {
                    _fs.watchFile(fileName, { persistent: true, interval: pollingInterval || 250 }, fileChanged);
                    return {
                        close: function () { return _fs.unwatchFile(fileName, fileChanged); }
                    };
                }
                function fileChanged(curr, prev) {
                    if (+curr.mtime <= +prev.mtime) {
                        return;
                    }
                    callback(fileName);
                }
            },
            watchDirectory: function (directoryName, callback, recursive) {
                var options;
                if (!directoryExists(directoryName)) {
                    return noOpFileWatcher;
                }
                if (isNode4OrLater() && (process.platform === "win32" || process.platform === "darwin")) {
                    options = { persistent: true, recursive: !!recursive };
                }
                else {
                    options = { persistent: true };
                }
                return _fs.watch(directoryName, options, function (eventName, relativeFileName) {
                    if (eventName === "rename") {
                        callback(!relativeFileName ? relativeFileName : ts.normalizePath(ts.combinePaths(directoryName, relativeFileName)));
                    }
                    ;
                });
            },
            resolvePath: function (path) {
                return _path.resolve(path);
            },
            fileExists: fileExists,
            directoryExists: directoryExists,
            createDirectory: function (directoryName) {
                if (!nodeSystem.directoryExists(directoryName)) {
                    _fs.mkdirSync(directoryName);
                }
            },
            getExecutingFilePath: function () {
                return __filename;
            },
            getCurrentDirectory: function () {
                return process.cwd();
            },
            getDirectories: getDirectories,
            getEnvironmentVariable: function (name) {
                return process.env[name] || "";
            },
            readDirectory: readDirectory,
            getModifiedTime: function (path) {
                try {
                    return _fs.statSync(path).mtime;
                }
                catch (e) {
                    return undefined;
                }
            },
            createHash: function (data) {
                var hash = _crypto.createHash("md5");
                hash.update(data);
                return hash.digest("hex");
            },
            getMemoryUsage: function () {
                if (global.gc) {
                    global.gc();
                }
                return process.memoryUsage().heapUsed;
            },
            getFileSize: function (path) {
                try {
                    var stat = _fs.statSync(path);
                    if (stat.isFile()) {
                        return stat.size;
                    }
                }
                catch (e) { }
                return 0;
            },
            exit: function (exitCode) {
                process.exit(exitCode);
            },
            realpath: function (path) {
                return _fs.realpathSync(path);
            },
            tryEnableSourceMapsForHost: function () {
                try {
                    require("source-map-support").install();
                }
                catch (e) {
                }
            },
            setTimeout: setTimeout,
            clearTimeout: clearTimeout
        };
        return nodeSystem;
    }
    function getChakraSystem() {
        var realpath = ChakraHost.realpath && (function (path) { return ChakraHost.realpath(path); });
        return {
            newLine: ChakraHost.newLine || "\r\n",
            args: ChakraHost.args,
            useCaseSensitiveFileNames: !!ChakraHost.useCaseSensitiveFileNames,
            write: ChakraHost.echo,
            readFile: function (path, _encoding) {
                return ChakraHost.readFile(path);
            },
            writeFile: function (path, data, writeByteOrderMark) {
                if (writeByteOrderMark) {
                    data = "\uFEFF" + data;
                }
                ChakraHost.writeFile(path, data);
            },
            resolvePath: ChakraHost.resolvePath,
            fileExists: ChakraHost.fileExists,
            directoryExists: ChakraHost.directoryExists,
            createDirectory: ChakraHost.createDirectory,
            getExecutingFilePath: function () { return ChakraHost.executingFile; },
            getCurrentDirectory: function () { return ChakraHost.currentDirectory; },
            getDirectories: ChakraHost.getDirectories,
            getEnvironmentVariable: ChakraHost.getEnvironmentVariable || (function () { return ""; }),
            readDirectory: function (path, extensions, excludes, includes) {
                var pattern = ts.getFileMatcherPatterns(path, excludes, includes, !!ChakraHost.useCaseSensitiveFileNames, ChakraHost.currentDirectory);
                return ChakraHost.readDirectory(path, extensions, pattern.basePaths, pattern.excludePattern, pattern.includeFilePattern, pattern.includeDirectoryPattern);
            },
            exit: ChakraHost.quit,
            realpath: realpath
        };
    }
    function recursiveCreateDirectory(directoryPath, sys) {
        var basePath = ts.getDirectoryPath(directoryPath);
        var shouldCreateParent = directoryPath !== basePath && !sys.directoryExists(basePath);
        if (shouldCreateParent) {
            recursiveCreateDirectory(basePath, sys);
        }
        if (shouldCreateParent || !sys.directoryExists(directoryPath)) {
            sys.createDirectory(directoryPath);
        }
    }
    var sys;
    if (typeof ChakraHost !== "undefined") {
        sys = getChakraSystem();
    }
    else if (typeof WScript !== "undefined" && typeof ActiveXObject === "function") {
        sys = getWScriptSystem();
    }
    else if (typeof process !== "undefined" && process.nextTick && !process.browser && typeof require !== "undefined") {
        sys = getNodeSystem();
    }
    if (sys) {
        var originalWriteFile_1 = sys.writeFile;
        sys.writeFile = function (path, data, writeBom) {
            var directoryPath = ts.getDirectoryPath(ts.normalizeSlashes(path));
            if (directoryPath && !sys.directoryExists(directoryPath)) {
                recursiveCreateDirectory(directoryPath, sys);
            }
            originalWriteFile_1.call(sys, path, data, writeBom);
        };
    }
    return sys;
})();
if (ts.sys && ts.sys.getEnvironmentVariable) {
    ts.Debug.currentAssertionLevel = /^development$/i.test(ts.sys.getEnvironmentVariable("NODE_ENV"))
        ? 1
        : 0;
}

})(ts || (ts = {})); var ts; (function (ts) {

ts.Diagnostics = {
    Unterminated_string_literal: { code: 1002, category: ts.DiagnosticCategory.Error, key: "Unterminated_string_literal_1002", message: "Unterminated string literal." },
    Identifier_expected: { code: 1003, category: ts.DiagnosticCategory.Error, key: "Identifier_expected_1003", message: "Identifier expected." },
    _0_expected: { code: 1005, category: ts.DiagnosticCategory.Error, key: "_0_expected_1005", message: "'{0}' expected." },
    A_file_cannot_have_a_reference_to_itself: { code: 1006, category: ts.DiagnosticCategory.Error, key: "A_file_cannot_have_a_reference_to_itself_1006", message: "A file cannot have a reference to itself." },
    Trailing_comma_not_allowed: { code: 1009, category: ts.DiagnosticCategory.Error, key: "Trailing_comma_not_allowed_1009", message: "Trailing comma not allowed." },
    Asterisk_Slash_expected: { code: 1010, category: ts.DiagnosticCategory.Error, key: "Asterisk_Slash_expected_1010", message: "'*/' expected." },
    Unexpected_token: { code: 1012, category: ts.DiagnosticCategory.Error, key: "Unexpected_token_1012", message: "Unexpected token." },
    A_rest_parameter_must_be_last_in_a_parameter_list: { code: 1014, category: ts.DiagnosticCategory.Error, key: "A_rest_parameter_must_be_last_in_a_parameter_list_1014", message: "A rest parameter must be last in a parameter list." },
    Parameter_cannot_have_question_mark_and_initializer: { code: 1015, category: ts.DiagnosticCategory.Error, key: "Parameter_cannot_have_question_mark_and_initializer_1015", message: "Parameter cannot have question mark and initializer." },
    A_required_parameter_cannot_follow_an_optional_parameter: { code: 1016, category: ts.DiagnosticCategory.Error, key: "A_required_parameter_cannot_follow_an_optional_parameter_1016", message: "A required parameter cannot follow an optional parameter." },
    An_index_signature_cannot_have_a_rest_parameter: { code: 1017, category: ts.DiagnosticCategory.Error, key: "An_index_signature_cannot_have_a_rest_parameter_1017", message: "An index signature cannot have a rest parameter." },
    An_index_signature_parameter_cannot_have_an_accessibility_modifier: { code: 1018, category: ts.DiagnosticCategory.Error, key: "An_index_signature_parameter_cannot_have_an_accessibility_modifier_1018", message: "An index signature parameter cannot have an accessibility modifier." },
    An_index_signature_parameter_cannot_have_a_question_mark: { code: 1019, category: ts.DiagnosticCategory.Error, key: "An_index_signature_parameter_cannot_have_a_question_mark_1019", message: "An index signature parameter cannot have a question mark." },
    An_index_signature_parameter_cannot_have_an_initializer: { code: 1020, category: ts.DiagnosticCategory.Error, key: "An_index_signature_parameter_cannot_have_an_initializer_1020", message: "An index signature parameter cannot have an initializer." },
    An_index_signature_must_have_a_type_annotation: { code: 1021, category: ts.DiagnosticCategory.Error, key: "An_index_signature_must_have_a_type_annotation_1021", message: "An index signature must have a type annotation." },
    An_index_signature_parameter_must_have_a_type_annotation: { code: 1022, category: ts.DiagnosticCategory.Error, key: "An_index_signature_parameter_must_have_a_type_annotation_1022", message: "An index signature parameter must have a type annotation." },
    An_index_signature_parameter_type_must_be_string_or_number: { code: 1023, category: ts.DiagnosticCategory.Error, key: "An_index_signature_parameter_type_must_be_string_or_number_1023", message: "An index signature parameter type must be 'string' or 'number'." },
    readonly_modifier_can_only_appear_on_a_property_declaration_or_index_signature: { code: 1024, category: ts.DiagnosticCategory.Error, key: "readonly_modifier_can_only_appear_on_a_property_declaration_or_index_signature_1024", message: "'readonly' modifier can only appear on a property declaration or index signature." },
    Accessibility_modifier_already_seen: { code: 1028, category: ts.DiagnosticCategory.Error, key: "Accessibility_modifier_already_seen_1028", message: "Accessibility modifier already seen." },
    _0_modifier_must_precede_1_modifier: { code: 1029, category: ts.DiagnosticCategory.Error, key: "_0_modifier_must_precede_1_modifier_1029", message: "'{0}' modifier must precede '{1}' modifier." },
    _0_modifier_already_seen: { code: 1030, category: ts.DiagnosticCategory.Error, key: "_0_modifier_already_seen_1030", message: "'{0}' modifier already seen." },
    _0_modifier_cannot_appear_on_a_class_element: { code: 1031, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_a_class_element_1031", message: "'{0}' modifier cannot appear on a class element." },
    super_must_be_followed_by_an_argument_list_or_member_access: { code: 1034, category: ts.DiagnosticCategory.Error, key: "super_must_be_followed_by_an_argument_list_or_member_access_1034", message: "'super' must be followed by an argument list or member access." },
    Only_ambient_modules_can_use_quoted_names: { code: 1035, category: ts.DiagnosticCategory.Error, key: "Only_ambient_modules_can_use_quoted_names_1035", message: "Only ambient modules can use quoted names." },
    Statements_are_not_allowed_in_ambient_contexts: { code: 1036, category: ts.DiagnosticCategory.Error, key: "Statements_are_not_allowed_in_ambient_contexts_1036", message: "Statements are not allowed in ambient contexts." },
    A_declare_modifier_cannot_be_used_in_an_already_ambient_context: { code: 1038, category: ts.DiagnosticCategory.Error, key: "A_declare_modifier_cannot_be_used_in_an_already_ambient_context_1038", message: "A 'declare' modifier cannot be used in an already ambient context." },
    Initializers_are_not_allowed_in_ambient_contexts: { code: 1039, category: ts.DiagnosticCategory.Error, key: "Initializers_are_not_allowed_in_ambient_contexts_1039", message: "Initializers are not allowed in ambient contexts." },
    _0_modifier_cannot_be_used_in_an_ambient_context: { code: 1040, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_be_used_in_an_ambient_context_1040", message: "'{0}' modifier cannot be used in an ambient context." },
    _0_modifier_cannot_be_used_with_a_class_declaration: { code: 1041, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_be_used_with_a_class_declaration_1041", message: "'{0}' modifier cannot be used with a class declaration." },
    _0_modifier_cannot_be_used_here: { code: 1042, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_be_used_here_1042", message: "'{0}' modifier cannot be used here." },
    _0_modifier_cannot_appear_on_a_data_property: { code: 1043, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_a_data_property_1043", message: "'{0}' modifier cannot appear on a data property." },
    _0_modifier_cannot_appear_on_a_module_or_namespace_element: { code: 1044, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_a_module_or_namespace_element_1044", message: "'{0}' modifier cannot appear on a module or namespace element." },
    A_0_modifier_cannot_be_used_with_an_interface_declaration: { code: 1045, category: ts.DiagnosticCategory.Error, key: "A_0_modifier_cannot_be_used_with_an_interface_declaration_1045", message: "A '{0}' modifier cannot be used with an interface declaration." },
    A_declare_modifier_is_required_for_a_top_level_declaration_in_a_d_ts_file: { code: 1046, category: ts.DiagnosticCategory.Error, key: "A_declare_modifier_is_required_for_a_top_level_declaration_in_a_d_ts_file_1046", message: "A 'declare' modifier is required for a top level declaration in a .d.ts file." },
    A_rest_parameter_cannot_be_optional: { code: 1047, category: ts.DiagnosticCategory.Error, key: "A_rest_parameter_cannot_be_optional_1047", message: "A rest parameter cannot be optional." },
    A_rest_parameter_cannot_have_an_initializer: { code: 1048, category: ts.DiagnosticCategory.Error, key: "A_rest_parameter_cannot_have_an_initializer_1048", message: "A rest parameter cannot have an initializer." },
    A_set_accessor_must_have_exactly_one_parameter: { code: 1049, category: ts.DiagnosticCategory.Error, key: "A_set_accessor_must_have_exactly_one_parameter_1049", message: "A 'set' accessor must have exactly one parameter." },
    A_set_accessor_cannot_have_an_optional_parameter: { code: 1051, category: ts.DiagnosticCategory.Error, key: "A_set_accessor_cannot_have_an_optional_parameter_1051", message: "A 'set' accessor cannot have an optional parameter." },
    A_set_accessor_parameter_cannot_have_an_initializer: { code: 1052, category: ts.DiagnosticCategory.Error, key: "A_set_accessor_parameter_cannot_have_an_initializer_1052", message: "A 'set' accessor parameter cannot have an initializer." },
    A_set_accessor_cannot_have_rest_parameter: { code: 1053, category: ts.DiagnosticCategory.Error, key: "A_set_accessor_cannot_have_rest_parameter_1053", message: "A 'set' accessor cannot have rest parameter." },
    A_get_accessor_cannot_have_parameters: { code: 1054, category: ts.DiagnosticCategory.Error, key: "A_get_accessor_cannot_have_parameters_1054", message: "A 'get' accessor cannot have parameters." },
    Type_0_is_not_a_valid_async_function_return_type_in_ES5_SlashES3_because_it_does_not_refer_to_a_Promise_compatible_constructor_value: { code: 1055, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_a_valid_async_function_return_type_in_ES5_SlashES3_because_it_does_not_refer_to_a_Prom_1055", message: "Type '{0}' is not a valid async function return type in ES5/ES3 because it does not refer to a Promise-compatible constructor value." },
    Accessors_are_only_available_when_targeting_ECMAScript_5_and_higher: { code: 1056, category: ts.DiagnosticCategory.Error, key: "Accessors_are_only_available_when_targeting_ECMAScript_5_and_higher_1056", message: "Accessors are only available when targeting ECMAScript 5 and higher." },
    An_async_function_or_method_must_have_a_valid_awaitable_return_type: { code: 1057, category: ts.DiagnosticCategory.Error, key: "An_async_function_or_method_must_have_a_valid_awaitable_return_type_1057", message: "An async function or method must have a valid awaitable return type." },
    Operand_for_await_does_not_have_a_valid_callable_then_member: { code: 1058, category: ts.DiagnosticCategory.Error, key: "Operand_for_await_does_not_have_a_valid_callable_then_member_1058", message: "Operand for 'await' does not have a valid callable 'then' member." },
    Return_expression_in_async_function_does_not_have_a_valid_callable_then_member: { code: 1059, category: ts.DiagnosticCategory.Error, key: "Return_expression_in_async_function_does_not_have_a_valid_callable_then_member_1059", message: "Return expression in async function does not have a valid callable 'then' member." },
    Expression_body_for_async_arrow_function_does_not_have_a_valid_callable_then_member: { code: 1060, category: ts.DiagnosticCategory.Error, key: "Expression_body_for_async_arrow_function_does_not_have_a_valid_callable_then_member_1060", message: "Expression body for async arrow function does not have a valid callable 'then' member." },
    Enum_member_must_have_initializer: { code: 1061, category: ts.DiagnosticCategory.Error, key: "Enum_member_must_have_initializer_1061", message: "Enum member must have initializer." },
    _0_is_referenced_directly_or_indirectly_in_the_fulfillment_callback_of_its_own_then_method: { code: 1062, category: ts.DiagnosticCategory.Error, key: "_0_is_referenced_directly_or_indirectly_in_the_fulfillment_callback_of_its_own_then_method_1062", message: "{0} is referenced directly or indirectly in the fulfillment callback of its own 'then' method." },
    An_export_assignment_cannot_be_used_in_a_namespace: { code: 1063, category: ts.DiagnosticCategory.Error, key: "An_export_assignment_cannot_be_used_in_a_namespace_1063", message: "An export assignment cannot be used in a namespace." },
    The_return_type_of_an_async_function_or_method_must_be_the_global_Promise_T_type: { code: 1064, category: ts.DiagnosticCategory.Error, key: "The_return_type_of_an_async_function_or_method_must_be_the_global_Promise_T_type_1064", message: "The return type of an async function or method must be the global Promise<T> type." },
    In_ambient_enum_declarations_member_initializer_must_be_constant_expression: { code: 1066, category: ts.DiagnosticCategory.Error, key: "In_ambient_enum_declarations_member_initializer_must_be_constant_expression_1066", message: "In ambient enum declarations member initializer must be constant expression." },
    Unexpected_token_A_constructor_method_accessor_or_property_was_expected: { code: 1068, category: ts.DiagnosticCategory.Error, key: "Unexpected_token_A_constructor_method_accessor_or_property_was_expected_1068", message: "Unexpected token. A constructor, method, accessor, or property was expected." },
    _0_modifier_cannot_appear_on_a_type_member: { code: 1070, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_a_type_member_1070", message: "'{0}' modifier cannot appear on a type member." },
    _0_modifier_cannot_appear_on_an_index_signature: { code: 1071, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_an_index_signature_1071", message: "'{0}' modifier cannot appear on an index signature." },
    A_0_modifier_cannot_be_used_with_an_import_declaration: { code: 1079, category: ts.DiagnosticCategory.Error, key: "A_0_modifier_cannot_be_used_with_an_import_declaration_1079", message: "A '{0}' modifier cannot be used with an import declaration." },
    Invalid_reference_directive_syntax: { code: 1084, category: ts.DiagnosticCategory.Error, key: "Invalid_reference_directive_syntax_1084", message: "Invalid 'reference' directive syntax." },
    Octal_literals_are_not_available_when_targeting_ECMAScript_5_and_higher_Use_the_syntax_0: { code: 1085, category: ts.DiagnosticCategory.Error, key: "Octal_literals_are_not_available_when_targeting_ECMAScript_5_and_higher_Use_the_syntax_0_1085", message: "Octal literals are not available when targeting ECMAScript 5 and higher. Use the syntax '{0}'." },
    An_accessor_cannot_be_declared_in_an_ambient_context: { code: 1086, category: ts.DiagnosticCategory.Error, key: "An_accessor_cannot_be_declared_in_an_ambient_context_1086", message: "An accessor cannot be declared in an ambient context." },
    _0_modifier_cannot_appear_on_a_constructor_declaration: { code: 1089, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_a_constructor_declaration_1089", message: "'{0}' modifier cannot appear on a constructor declaration." },
    _0_modifier_cannot_appear_on_a_parameter: { code: 1090, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_a_parameter_1090", message: "'{0}' modifier cannot appear on a parameter." },
    Only_a_single_variable_declaration_is_allowed_in_a_for_in_statement: { code: 1091, category: ts.DiagnosticCategory.Error, key: "Only_a_single_variable_declaration_is_allowed_in_a_for_in_statement_1091", message: "Only a single variable declaration is allowed in a 'for...in' statement." },
    Type_parameters_cannot_appear_on_a_constructor_declaration: { code: 1092, category: ts.DiagnosticCategory.Error, key: "Type_parameters_cannot_appear_on_a_constructor_declaration_1092", message: "Type parameters cannot appear on a constructor declaration." },
    Type_annotation_cannot_appear_on_a_constructor_declaration: { code: 1093, category: ts.DiagnosticCategory.Error, key: "Type_annotation_cannot_appear_on_a_constructor_declaration_1093", message: "Type annotation cannot appear on a constructor declaration." },
    An_accessor_cannot_have_type_parameters: { code: 1094, category: ts.DiagnosticCategory.Error, key: "An_accessor_cannot_have_type_parameters_1094", message: "An accessor cannot have type parameters." },
    A_set_accessor_cannot_have_a_return_type_annotation: { code: 1095, category: ts.DiagnosticCategory.Error, key: "A_set_accessor_cannot_have_a_return_type_annotation_1095", message: "A 'set' accessor cannot have a return type annotation." },
    An_index_signature_must_have_exactly_one_parameter: { code: 1096, category: ts.DiagnosticCategory.Error, key: "An_index_signature_must_have_exactly_one_parameter_1096", message: "An index signature must have exactly one parameter." },
    _0_list_cannot_be_empty: { code: 1097, category: ts.DiagnosticCategory.Error, key: "_0_list_cannot_be_empty_1097", message: "'{0}' list cannot be empty." },
    Type_parameter_list_cannot_be_empty: { code: 1098, category: ts.DiagnosticCategory.Error, key: "Type_parameter_list_cannot_be_empty_1098", message: "Type parameter list cannot be empty." },
    Type_argument_list_cannot_be_empty: { code: 1099, category: ts.DiagnosticCategory.Error, key: "Type_argument_list_cannot_be_empty_1099", message: "Type argument list cannot be empty." },
    Invalid_use_of_0_in_strict_mode: { code: 1100, category: ts.DiagnosticCategory.Error, key: "Invalid_use_of_0_in_strict_mode_1100", message: "Invalid use of '{0}' in strict mode." },
    with_statements_are_not_allowed_in_strict_mode: { code: 1101, category: ts.DiagnosticCategory.Error, key: "with_statements_are_not_allowed_in_strict_mode_1101", message: "'with' statements are not allowed in strict mode." },
    delete_cannot_be_called_on_an_identifier_in_strict_mode: { code: 1102, category: ts.DiagnosticCategory.Error, key: "delete_cannot_be_called_on_an_identifier_in_strict_mode_1102", message: "'delete' cannot be called on an identifier in strict mode." },
    A_continue_statement_can_only_be_used_within_an_enclosing_iteration_statement: { code: 1104, category: ts.DiagnosticCategory.Error, key: "A_continue_statement_can_only_be_used_within_an_enclosing_iteration_statement_1104", message: "A 'continue' statement can only be used within an enclosing iteration statement." },
    A_break_statement_can_only_be_used_within_an_enclosing_iteration_or_switch_statement: { code: 1105, category: ts.DiagnosticCategory.Error, key: "A_break_statement_can_only_be_used_within_an_enclosing_iteration_or_switch_statement_1105", message: "A 'break' statement can only be used within an enclosing iteration or switch statement." },
    Jump_target_cannot_cross_function_boundary: { code: 1107, category: ts.DiagnosticCategory.Error, key: "Jump_target_cannot_cross_function_boundary_1107", message: "Jump target cannot cross function boundary." },
    A_return_statement_can_only_be_used_within_a_function_body: { code: 1108, category: ts.DiagnosticCategory.Error, key: "A_return_statement_can_only_be_used_within_a_function_body_1108", message: "A 'return' statement can only be used within a function body." },
    Expression_expected: { code: 1109, category: ts.DiagnosticCategory.Error, key: "Expression_expected_1109", message: "Expression expected." },
    Type_expected: { code: 1110, category: ts.DiagnosticCategory.Error, key: "Type_expected_1110", message: "Type expected." },
    A_default_clause_cannot_appear_more_than_once_in_a_switch_statement: { code: 1113, category: ts.DiagnosticCategory.Error, key: "A_default_clause_cannot_appear_more_than_once_in_a_switch_statement_1113", message: "A 'default' clause cannot appear more than once in a 'switch' statement." },
    Duplicate_label_0: { code: 1114, category: ts.DiagnosticCategory.Error, key: "Duplicate_label_0_1114", message: "Duplicate label '{0}'" },
    A_continue_statement_can_only_jump_to_a_label_of_an_enclosing_iteration_statement: { code: 1115, category: ts.DiagnosticCategory.Error, key: "A_continue_statement_can_only_jump_to_a_label_of_an_enclosing_iteration_statement_1115", message: "A 'continue' statement can only jump to a label of an enclosing iteration statement." },
    A_break_statement_can_only_jump_to_a_label_of_an_enclosing_statement: { code: 1116, category: ts.DiagnosticCategory.Error, key: "A_break_statement_can_only_jump_to_a_label_of_an_enclosing_statement_1116", message: "A 'break' statement can only jump to a label of an enclosing statement." },
    An_object_literal_cannot_have_multiple_properties_with_the_same_name_in_strict_mode: { code: 1117, category: ts.DiagnosticCategory.Error, key: "An_object_literal_cannot_have_multiple_properties_with_the_same_name_in_strict_mode_1117", message: "An object literal cannot have multiple properties with the same name in strict mode." },
    An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name: { code: 1118, category: ts.DiagnosticCategory.Error, key: "An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name_1118", message: "An object literal cannot have multiple get/set accessors with the same name." },
    An_object_literal_cannot_have_property_and_accessor_with_the_same_name: { code: 1119, category: ts.DiagnosticCategory.Error, key: "An_object_literal_cannot_have_property_and_accessor_with_the_same_name_1119", message: "An object literal cannot have property and accessor with the same name." },
    An_export_assignment_cannot_have_modifiers: { code: 1120, category: ts.DiagnosticCategory.Error, key: "An_export_assignment_cannot_have_modifiers_1120", message: "An export assignment cannot have modifiers." },
    Octal_literals_are_not_allowed_in_strict_mode: { code: 1121, category: ts.DiagnosticCategory.Error, key: "Octal_literals_are_not_allowed_in_strict_mode_1121", message: "Octal literals are not allowed in strict mode." },
    A_tuple_type_element_list_cannot_be_empty: { code: 1122, category: ts.DiagnosticCategory.Error, key: "A_tuple_type_element_list_cannot_be_empty_1122", message: "A tuple type element list cannot be empty." },
    Variable_declaration_list_cannot_be_empty: { code: 1123, category: ts.DiagnosticCategory.Error, key: "Variable_declaration_list_cannot_be_empty_1123", message: "Variable declaration list cannot be empty." },
    Digit_expected: { code: 1124, category: ts.DiagnosticCategory.Error, key: "Digit_expected_1124", message: "Digit expected." },
    Hexadecimal_digit_expected: { code: 1125, category: ts.DiagnosticCategory.Error, key: "Hexadecimal_digit_expected_1125", message: "Hexadecimal digit expected." },
    Unexpected_end_of_text: { code: 1126, category: ts.DiagnosticCategory.Error, key: "Unexpected_end_of_text_1126", message: "Unexpected end of text." },
    Invalid_character: { code: 1127, category: ts.DiagnosticCategory.Error, key: "Invalid_character_1127", message: "Invalid character." },
    Declaration_or_statement_expected: { code: 1128, category: ts.DiagnosticCategory.Error, key: "Declaration_or_statement_expected_1128", message: "Declaration or statement expected." },
    Statement_expected: { code: 1129, category: ts.DiagnosticCategory.Error, key: "Statement_expected_1129", message: "Statement expected." },
    case_or_default_expected: { code: 1130, category: ts.DiagnosticCategory.Error, key: "case_or_default_expected_1130", message: "'case' or 'default' expected." },
    Property_or_signature_expected: { code: 1131, category: ts.DiagnosticCategory.Error, key: "Property_or_signature_expected_1131", message: "Property or signature expected." },
    Enum_member_expected: { code: 1132, category: ts.DiagnosticCategory.Error, key: "Enum_member_expected_1132", message: "Enum member expected." },
    Variable_declaration_expected: { code: 1134, category: ts.DiagnosticCategory.Error, key: "Variable_declaration_expected_1134", message: "Variable declaration expected." },
    Argument_expression_expected: { code: 1135, category: ts.DiagnosticCategory.Error, key: "Argument_expression_expected_1135", message: "Argument expression expected." },
    Property_assignment_expected: { code: 1136, category: ts.DiagnosticCategory.Error, key: "Property_assignment_expected_1136", message: "Property assignment expected." },
    Expression_or_comma_expected: { code: 1137, category: ts.DiagnosticCategory.Error, key: "Expression_or_comma_expected_1137", message: "Expression or comma expected." },
    Parameter_declaration_expected: { code: 1138, category: ts.DiagnosticCategory.Error, key: "Parameter_declaration_expected_1138", message: "Parameter declaration expected." },
    Type_parameter_declaration_expected: { code: 1139, category: ts.DiagnosticCategory.Error, key: "Type_parameter_declaration_expected_1139", message: "Type parameter declaration expected." },
    Type_argument_expected: { code: 1140, category: ts.DiagnosticCategory.Error, key: "Type_argument_expected_1140", message: "Type argument expected." },
    String_literal_expected: { code: 1141, category: ts.DiagnosticCategory.Error, key: "String_literal_expected_1141", message: "String literal expected." },
    Line_break_not_permitted_here: { code: 1142, category: ts.DiagnosticCategory.Error, key: "Line_break_not_permitted_here_1142", message: "Line break not permitted here." },
    or_expected: { code: 1144, category: ts.DiagnosticCategory.Error, key: "or_expected_1144", message: "'{' or ';' expected." },
    Declaration_expected: { code: 1146, category: ts.DiagnosticCategory.Error, key: "Declaration_expected_1146", message: "Declaration expected." },
    Import_declarations_in_a_namespace_cannot_reference_a_module: { code: 1147, category: ts.DiagnosticCategory.Error, key: "Import_declarations_in_a_namespace_cannot_reference_a_module_1147", message: "Import declarations in a namespace cannot reference a module." },
    Cannot_use_imports_exports_or_module_augmentations_when_module_is_none: { code: 1148, category: ts.DiagnosticCategory.Error, key: "Cannot_use_imports_exports_or_module_augmentations_when_module_is_none_1148", message: "Cannot use imports, exports, or module augmentations when '--module' is 'none'." },
    File_name_0_differs_from_already_included_file_name_1_only_in_casing: { code: 1149, category: ts.DiagnosticCategory.Error, key: "File_name_0_differs_from_already_included_file_name_1_only_in_casing_1149", message: "File name '{0}' differs from already included file name '{1}' only in casing" },
    new_T_cannot_be_used_to_create_an_array_Use_new_Array_T_instead: { code: 1150, category: ts.DiagnosticCategory.Error, key: "new_T_cannot_be_used_to_create_an_array_Use_new_Array_T_instead_1150", message: "'new T[]' cannot be used to create an array. Use 'new Array<T>()' instead." },
    const_declarations_must_be_initialized: { code: 1155, category: ts.DiagnosticCategory.Error, key: "const_declarations_must_be_initialized_1155", message: "'const' declarations must be initialized" },
    const_declarations_can_only_be_declared_inside_a_block: { code: 1156, category: ts.DiagnosticCategory.Error, key: "const_declarations_can_only_be_declared_inside_a_block_1156", message: "'const' declarations can only be declared inside a block." },
    let_declarations_can_only_be_declared_inside_a_block: { code: 1157, category: ts.DiagnosticCategory.Error, key: "let_declarations_can_only_be_declared_inside_a_block_1157", message: "'let' declarations can only be declared inside a block." },
    Unterminated_template_literal: { code: 1160, category: ts.DiagnosticCategory.Error, key: "Unterminated_template_literal_1160", message: "Unterminated template literal." },
    Unterminated_regular_expression_literal: { code: 1161, category: ts.DiagnosticCategory.Error, key: "Unterminated_regular_expression_literal_1161", message: "Unterminated regular expression literal." },
    An_object_member_cannot_be_declared_optional: { code: 1162, category: ts.DiagnosticCategory.Error, key: "An_object_member_cannot_be_declared_optional_1162", message: "An object member cannot be declared optional." },
    A_yield_expression_is_only_allowed_in_a_generator_body: { code: 1163, category: ts.DiagnosticCategory.Error, key: "A_yield_expression_is_only_allowed_in_a_generator_body_1163", message: "A 'yield' expression is only allowed in a generator body." },
    Computed_property_names_are_not_allowed_in_enums: { code: 1164, category: ts.DiagnosticCategory.Error, key: "Computed_property_names_are_not_allowed_in_enums_1164", message: "Computed property names are not allowed in enums." },
    A_computed_property_name_in_an_ambient_context_must_directly_refer_to_a_built_in_symbol: { code: 1165, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_in_an_ambient_context_must_directly_refer_to_a_built_in_symbol_1165", message: "A computed property name in an ambient context must directly refer to a built-in symbol." },
    A_computed_property_name_in_a_class_property_declaration_must_directly_refer_to_a_built_in_symbol: { code: 1166, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_in_a_class_property_declaration_must_directly_refer_to_a_built_in_symbol_1166", message: "A computed property name in a class property declaration must directly refer to a built-in symbol." },
    A_computed_property_name_in_a_method_overload_must_directly_refer_to_a_built_in_symbol: { code: 1168, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_in_a_method_overload_must_directly_refer_to_a_built_in_symbol_1168", message: "A computed property name in a method overload must directly refer to a built-in symbol." },
    A_computed_property_name_in_an_interface_must_directly_refer_to_a_built_in_symbol: { code: 1169, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_in_an_interface_must_directly_refer_to_a_built_in_symbol_1169", message: "A computed property name in an interface must directly refer to a built-in symbol." },
    A_computed_property_name_in_a_type_literal_must_directly_refer_to_a_built_in_symbol: { code: 1170, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_in_a_type_literal_must_directly_refer_to_a_built_in_symbol_1170", message: "A computed property name in a type literal must directly refer to a built-in symbol." },
    A_comma_expression_is_not_allowed_in_a_computed_property_name: { code: 1171, category: ts.DiagnosticCategory.Error, key: "A_comma_expression_is_not_allowed_in_a_computed_property_name_1171", message: "A comma expression is not allowed in a computed property name." },
    extends_clause_already_seen: { code: 1172, category: ts.DiagnosticCategory.Error, key: "extends_clause_already_seen_1172", message: "'extends' clause already seen." },
    extends_clause_must_precede_implements_clause: { code: 1173, category: ts.DiagnosticCategory.Error, key: "extends_clause_must_precede_implements_clause_1173", message: "'extends' clause must precede 'implements' clause." },
    Classes_can_only_extend_a_single_class: { code: 1174, category: ts.DiagnosticCategory.Error, key: "Classes_can_only_extend_a_single_class_1174", message: "Classes can only extend a single class." },
    implements_clause_already_seen: { code: 1175, category: ts.DiagnosticCategory.Error, key: "implements_clause_already_seen_1175", message: "'implements' clause already seen." },
    Interface_declaration_cannot_have_implements_clause: { code: 1176, category: ts.DiagnosticCategory.Error, key: "Interface_declaration_cannot_have_implements_clause_1176", message: "Interface declaration cannot have 'implements' clause." },
    Binary_digit_expected: { code: 1177, category: ts.DiagnosticCategory.Error, key: "Binary_digit_expected_1177", message: "Binary digit expected." },
    Octal_digit_expected: { code: 1178, category: ts.DiagnosticCategory.Error, key: "Octal_digit_expected_1178", message: "Octal digit expected." },
    Unexpected_token_expected: { code: 1179, category: ts.DiagnosticCategory.Error, key: "Unexpected_token_expected_1179", message: "Unexpected token. '{' expected." },
    Property_destructuring_pattern_expected: { code: 1180, category: ts.DiagnosticCategory.Error, key: "Property_destructuring_pattern_expected_1180", message: "Property destructuring pattern expected." },
    Array_element_destructuring_pattern_expected: { code: 1181, category: ts.DiagnosticCategory.Error, key: "Array_element_destructuring_pattern_expected_1181", message: "Array element destructuring pattern expected." },
    A_destructuring_declaration_must_have_an_initializer: { code: 1182, category: ts.DiagnosticCategory.Error, key: "A_destructuring_declaration_must_have_an_initializer_1182", message: "A destructuring declaration must have an initializer." },
    An_implementation_cannot_be_declared_in_ambient_contexts: { code: 1183, category: ts.DiagnosticCategory.Error, key: "An_implementation_cannot_be_declared_in_ambient_contexts_1183", message: "An implementation cannot be declared in ambient contexts." },
    Modifiers_cannot_appear_here: { code: 1184, category: ts.DiagnosticCategory.Error, key: "Modifiers_cannot_appear_here_1184", message: "Modifiers cannot appear here." },
    Merge_conflict_marker_encountered: { code: 1185, category: ts.DiagnosticCategory.Error, key: "Merge_conflict_marker_encountered_1185", message: "Merge conflict marker encountered." },
    A_rest_element_cannot_have_an_initializer: { code: 1186, category: ts.DiagnosticCategory.Error, key: "A_rest_element_cannot_have_an_initializer_1186", message: "A rest element cannot have an initializer." },
    A_parameter_property_may_not_be_declared_using_a_binding_pattern: { code: 1187, category: ts.DiagnosticCategory.Error, key: "A_parameter_property_may_not_be_declared_using_a_binding_pattern_1187", message: "A parameter property may not be declared using a binding pattern." },
    Only_a_single_variable_declaration_is_allowed_in_a_for_of_statement: { code: 1188, category: ts.DiagnosticCategory.Error, key: "Only_a_single_variable_declaration_is_allowed_in_a_for_of_statement_1188", message: "Only a single variable declaration is allowed in a 'for...of' statement." },
    The_variable_declaration_of_a_for_in_statement_cannot_have_an_initializer: { code: 1189, category: ts.DiagnosticCategory.Error, key: "The_variable_declaration_of_a_for_in_statement_cannot_have_an_initializer_1189", message: "The variable declaration of a 'for...in' statement cannot have an initializer." },
    The_variable_declaration_of_a_for_of_statement_cannot_have_an_initializer: { code: 1190, category: ts.DiagnosticCategory.Error, key: "The_variable_declaration_of_a_for_of_statement_cannot_have_an_initializer_1190", message: "The variable declaration of a 'for...of' statement cannot have an initializer." },
    An_import_declaration_cannot_have_modifiers: { code: 1191, category: ts.DiagnosticCategory.Error, key: "An_import_declaration_cannot_have_modifiers_1191", message: "An import declaration cannot have modifiers." },
    Module_0_has_no_default_export: { code: 1192, category: ts.DiagnosticCategory.Error, key: "Module_0_has_no_default_export_1192", message: "Module '{0}' has no default export." },
    An_export_declaration_cannot_have_modifiers: { code: 1193, category: ts.DiagnosticCategory.Error, key: "An_export_declaration_cannot_have_modifiers_1193", message: "An export declaration cannot have modifiers." },
    Export_declarations_are_not_permitted_in_a_namespace: { code: 1194, category: ts.DiagnosticCategory.Error, key: "Export_declarations_are_not_permitted_in_a_namespace_1194", message: "Export declarations are not permitted in a namespace." },
    Catch_clause_variable_cannot_have_a_type_annotation: { code: 1196, category: ts.DiagnosticCategory.Error, key: "Catch_clause_variable_cannot_have_a_type_annotation_1196", message: "Catch clause variable cannot have a type annotation." },
    Catch_clause_variable_cannot_have_an_initializer: { code: 1197, category: ts.DiagnosticCategory.Error, key: "Catch_clause_variable_cannot_have_an_initializer_1197", message: "Catch clause variable cannot have an initializer." },
    An_extended_Unicode_escape_value_must_be_between_0x0_and_0x10FFFF_inclusive: { code: 1198, category: ts.DiagnosticCategory.Error, key: "An_extended_Unicode_escape_value_must_be_between_0x0_and_0x10FFFF_inclusive_1198", message: "An extended Unicode escape value must be between 0x0 and 0x10FFFF inclusive." },
    Unterminated_Unicode_escape_sequence: { code: 1199, category: ts.DiagnosticCategory.Error, key: "Unterminated_Unicode_escape_sequence_1199", message: "Unterminated Unicode escape sequence." },
    Line_terminator_not_permitted_before_arrow: { code: 1200, category: ts.DiagnosticCategory.Error, key: "Line_terminator_not_permitted_before_arrow_1200", message: "Line terminator not permitted before arrow." },
    Import_assignment_cannot_be_used_when_targeting_ECMAScript_2015_modules_Consider_using_import_Asterisk_as_ns_from_mod_import_a_from_mod_import_d_from_mod_or_another_module_format_instead: { code: 1202, category: ts.DiagnosticCategory.Error, key: "Import_assignment_cannot_be_used_when_targeting_ECMAScript_2015_modules_Consider_using_import_Asteri_1202", message: "Import assignment cannot be used when targeting ECMAScript 2015 modules. Consider using 'import * as ns from \"mod\"', 'import {a} from \"mod\"', 'import d from \"mod\"', or another module format instead." },
    Export_assignment_cannot_be_used_when_targeting_ECMAScript_2015_modules_Consider_using_export_default_or_another_module_format_instead: { code: 1203, category: ts.DiagnosticCategory.Error, key: "Export_assignment_cannot_be_used_when_targeting_ECMAScript_2015_modules_Consider_using_export_defaul_1203", message: "Export assignment cannot be used when targeting ECMAScript 2015 modules. Consider using 'export default' or another module format instead." },
    Decorators_are_not_valid_here: { code: 1206, category: ts.DiagnosticCategory.Error, key: "Decorators_are_not_valid_here_1206", message: "Decorators are not valid here." },
    Decorators_cannot_be_applied_to_multiple_get_Slashset_accessors_of_the_same_name: { code: 1207, category: ts.DiagnosticCategory.Error, key: "Decorators_cannot_be_applied_to_multiple_get_Slashset_accessors_of_the_same_name_1207", message: "Decorators cannot be applied to multiple get/set accessors of the same name." },
    Cannot_compile_namespaces_when_the_isolatedModules_flag_is_provided: { code: 1208, category: ts.DiagnosticCategory.Error, key: "Cannot_compile_namespaces_when_the_isolatedModules_flag_is_provided_1208", message: "Cannot compile namespaces when the '--isolatedModules' flag is provided." },
    Ambient_const_enums_are_not_allowed_when_the_isolatedModules_flag_is_provided: { code: 1209, category: ts.DiagnosticCategory.Error, key: "Ambient_const_enums_are_not_allowed_when_the_isolatedModules_flag_is_provided_1209", message: "Ambient const enums are not allowed when the '--isolatedModules' flag is provided." },
    Invalid_use_of_0_Class_definitions_are_automatically_in_strict_mode: { code: 1210, category: ts.DiagnosticCategory.Error, key: "Invalid_use_of_0_Class_definitions_are_automatically_in_strict_mode_1210", message: "Invalid use of '{0}'. Class definitions are automatically in strict mode." },
    A_class_declaration_without_the_default_modifier_must_have_a_name: { code: 1211, category: ts.DiagnosticCategory.Error, key: "A_class_declaration_without_the_default_modifier_must_have_a_name_1211", message: "A class declaration without the 'default' modifier must have a name" },
    Identifier_expected_0_is_a_reserved_word_in_strict_mode: { code: 1212, category: ts.DiagnosticCategory.Error, key: "Identifier_expected_0_is_a_reserved_word_in_strict_mode_1212", message: "Identifier expected. '{0}' is a reserved word in strict mode" },
    Identifier_expected_0_is_a_reserved_word_in_strict_mode_Class_definitions_are_automatically_in_strict_mode: { code: 1213, category: ts.DiagnosticCategory.Error, key: "Identifier_expected_0_is_a_reserved_word_in_strict_mode_Class_definitions_are_automatically_in_stric_1213", message: "Identifier expected. '{0}' is a reserved word in strict mode. Class definitions are automatically in strict mode." },
    Identifier_expected_0_is_a_reserved_word_in_strict_mode_Modules_are_automatically_in_strict_mode: { code: 1214, category: ts.DiagnosticCategory.Error, key: "Identifier_expected_0_is_a_reserved_word_in_strict_mode_Modules_are_automatically_in_strict_mode_1214", message: "Identifier expected. '{0}' is a reserved word in strict mode. Modules are automatically in strict mode." },
    Invalid_use_of_0_Modules_are_automatically_in_strict_mode: { code: 1215, category: ts.DiagnosticCategory.Error, key: "Invalid_use_of_0_Modules_are_automatically_in_strict_mode_1215", message: "Invalid use of '{0}'. Modules are automatically in strict mode." },
    Export_assignment_is_not_supported_when_module_flag_is_system: { code: 1218, category: ts.DiagnosticCategory.Error, key: "Export_assignment_is_not_supported_when_module_flag_is_system_1218", message: "Export assignment is not supported when '--module' flag is 'system'." },
    Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_to_remove_this_warning: { code: 1219, category: ts.DiagnosticCategory.Error, key: "Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_t_1219", message: "Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning." },
    Generators_are_only_available_when_targeting_ECMAScript_2015_or_higher: { code: 1220, category: ts.DiagnosticCategory.Error, key: "Generators_are_only_available_when_targeting_ECMAScript_2015_or_higher_1220", message: "Generators are only available when targeting ECMAScript 2015 or higher." },
    Generators_are_not_allowed_in_an_ambient_context: { code: 1221, category: ts.DiagnosticCategory.Error, key: "Generators_are_not_allowed_in_an_ambient_context_1221", message: "Generators are not allowed in an ambient context." },
    An_overload_signature_cannot_be_declared_as_a_generator: { code: 1222, category: ts.DiagnosticCategory.Error, key: "An_overload_signature_cannot_be_declared_as_a_generator_1222", message: "An overload signature cannot be declared as a generator." },
    _0_tag_already_specified: { code: 1223, category: ts.DiagnosticCategory.Error, key: "_0_tag_already_specified_1223", message: "'{0}' tag already specified." },
    Signature_0_must_have_a_type_predicate: { code: 1224, category: ts.DiagnosticCategory.Error, key: "Signature_0_must_have_a_type_predicate_1224", message: "Signature '{0}' must have a type predicate." },
    Cannot_find_parameter_0: { code: 1225, category: ts.DiagnosticCategory.Error, key: "Cannot_find_parameter_0_1225", message: "Cannot find parameter '{0}'." },
    Type_predicate_0_is_not_assignable_to_1: { code: 1226, category: ts.DiagnosticCategory.Error, key: "Type_predicate_0_is_not_assignable_to_1_1226", message: "Type predicate '{0}' is not assignable to '{1}'." },
    Parameter_0_is_not_in_the_same_position_as_parameter_1: { code: 1227, category: ts.DiagnosticCategory.Error, key: "Parameter_0_is_not_in_the_same_position_as_parameter_1_1227", message: "Parameter '{0}' is not in the same position as parameter '{1}'." },
    A_type_predicate_is_only_allowed_in_return_type_position_for_functions_and_methods: { code: 1228, category: ts.DiagnosticCategory.Error, key: "A_type_predicate_is_only_allowed_in_return_type_position_for_functions_and_methods_1228", message: "A type predicate is only allowed in return type position for functions and methods." },
    A_type_predicate_cannot_reference_a_rest_parameter: { code: 1229, category: ts.DiagnosticCategory.Error, key: "A_type_predicate_cannot_reference_a_rest_parameter_1229", message: "A type predicate cannot reference a rest parameter." },
    A_type_predicate_cannot_reference_element_0_in_a_binding_pattern: { code: 1230, category: ts.DiagnosticCategory.Error, key: "A_type_predicate_cannot_reference_element_0_in_a_binding_pattern_1230", message: "A type predicate cannot reference element '{0}' in a binding pattern." },
    An_export_assignment_can_only_be_used_in_a_module: { code: 1231, category: ts.DiagnosticCategory.Error, key: "An_export_assignment_can_only_be_used_in_a_module_1231", message: "An export assignment can only be used in a module." },
    An_import_declaration_can_only_be_used_in_a_namespace_or_module: { code: 1232, category: ts.DiagnosticCategory.Error, key: "An_import_declaration_can_only_be_used_in_a_namespace_or_module_1232", message: "An import declaration can only be used in a namespace or module." },
    An_export_declaration_can_only_be_used_in_a_module: { code: 1233, category: ts.DiagnosticCategory.Error, key: "An_export_declaration_can_only_be_used_in_a_module_1233", message: "An export declaration can only be used in a module." },
    An_ambient_module_declaration_is_only_allowed_at_the_top_level_in_a_file: { code: 1234, category: ts.DiagnosticCategory.Error, key: "An_ambient_module_declaration_is_only_allowed_at_the_top_level_in_a_file_1234", message: "An ambient module declaration is only allowed at the top level in a file." },
    A_namespace_declaration_is_only_allowed_in_a_namespace_or_module: { code: 1235, category: ts.DiagnosticCategory.Error, key: "A_namespace_declaration_is_only_allowed_in_a_namespace_or_module_1235", message: "A namespace declaration is only allowed in a namespace or module." },
    The_return_type_of_a_property_decorator_function_must_be_either_void_or_any: { code: 1236, category: ts.DiagnosticCategory.Error, key: "The_return_type_of_a_property_decorator_function_must_be_either_void_or_any_1236", message: "The return type of a property decorator function must be either 'void' or 'any'." },
    The_return_type_of_a_parameter_decorator_function_must_be_either_void_or_any: { code: 1237, category: ts.DiagnosticCategory.Error, key: "The_return_type_of_a_parameter_decorator_function_must_be_either_void_or_any_1237", message: "The return type of a parameter decorator function must be either 'void' or 'any'." },
    Unable_to_resolve_signature_of_class_decorator_when_called_as_an_expression: { code: 1238, category: ts.DiagnosticCategory.Error, key: "Unable_to_resolve_signature_of_class_decorator_when_called_as_an_expression_1238", message: "Unable to resolve signature of class decorator when called as an expression." },
    Unable_to_resolve_signature_of_parameter_decorator_when_called_as_an_expression: { code: 1239, category: ts.DiagnosticCategory.Error, key: "Unable_to_resolve_signature_of_parameter_decorator_when_called_as_an_expression_1239", message: "Unable to resolve signature of parameter decorator when called as an expression." },
    Unable_to_resolve_signature_of_property_decorator_when_called_as_an_expression: { code: 1240, category: ts.DiagnosticCategory.Error, key: "Unable_to_resolve_signature_of_property_decorator_when_called_as_an_expression_1240", message: "Unable to resolve signature of property decorator when called as an expression." },
    Unable_to_resolve_signature_of_method_decorator_when_called_as_an_expression: { code: 1241, category: ts.DiagnosticCategory.Error, key: "Unable_to_resolve_signature_of_method_decorator_when_called_as_an_expression_1241", message: "Unable to resolve signature of method decorator when called as an expression." },
    abstract_modifier_can_only_appear_on_a_class_method_or_property_declaration: { code: 1242, category: ts.DiagnosticCategory.Error, key: "abstract_modifier_can_only_appear_on_a_class_method_or_property_declaration_1242", message: "'abstract' modifier can only appear on a class, method, or property declaration." },
    _0_modifier_cannot_be_used_with_1_modifier: { code: 1243, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_be_used_with_1_modifier_1243", message: "'{0}' modifier cannot be used with '{1}' modifier." },
    Abstract_methods_can_only_appear_within_an_abstract_class: { code: 1244, category: ts.DiagnosticCategory.Error, key: "Abstract_methods_can_only_appear_within_an_abstract_class_1244", message: "Abstract methods can only appear within an abstract class." },
    Method_0_cannot_have_an_implementation_because_it_is_marked_abstract: { code: 1245, category: ts.DiagnosticCategory.Error, key: "Method_0_cannot_have_an_implementation_because_it_is_marked_abstract_1245", message: "Method '{0}' cannot have an implementation because it is marked abstract." },
    An_interface_property_cannot_have_an_initializer: { code: 1246, category: ts.DiagnosticCategory.Error, key: "An_interface_property_cannot_have_an_initializer_1246", message: "An interface property cannot have an initializer." },
    A_type_literal_property_cannot_have_an_initializer: { code: 1247, category: ts.DiagnosticCategory.Error, key: "A_type_literal_property_cannot_have_an_initializer_1247", message: "A type literal property cannot have an initializer." },
    A_class_member_cannot_have_the_0_keyword: { code: 1248, category: ts.DiagnosticCategory.Error, key: "A_class_member_cannot_have_the_0_keyword_1248", message: "A class member cannot have the '{0}' keyword." },
    A_decorator_can_only_decorate_a_method_implementation_not_an_overload: { code: 1249, category: ts.DiagnosticCategory.Error, key: "A_decorator_can_only_decorate_a_method_implementation_not_an_overload_1249", message: "A decorator can only decorate a method implementation, not an overload." },
    Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5: { code: 1250, category: ts.DiagnosticCategory.Error, key: "Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_1250", message: "Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'." },
    Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Class_definitions_are_automatically_in_strict_mode: { code: 1251, category: ts.DiagnosticCategory.Error, key: "Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Class_d_1251", message: "Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'. Class definitions are automatically in strict mode." },
    Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Modules_are_automatically_in_strict_mode: { code: 1252, category: ts.DiagnosticCategory.Error, key: "Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Modules_1252", message: "Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'. Modules are automatically in strict mode." },
    _0_tag_cannot_be_used_independently_as_a_top_level_JSDoc_tag: { code: 1253, category: ts.DiagnosticCategory.Error, key: "_0_tag_cannot_be_used_independently_as_a_top_level_JSDoc_tag_1253", message: "'{0}' tag cannot be used independently as a top level JSDoc tag." },
    A_const_initializer_in_an_ambient_context_must_be_a_string_or_numeric_literal: { code: 1254, category: ts.DiagnosticCategory.Error, key: "A_const_initializer_in_an_ambient_context_must_be_a_string_or_numeric_literal_1254", message: "A 'const' initializer in an ambient context must be a string or numeric literal." },
    with_statements_are_not_allowed_in_an_async_function_block: { code: 1300, category: ts.DiagnosticCategory.Error, key: "with_statements_are_not_allowed_in_an_async_function_block_1300", message: "'with' statements are not allowed in an async function block." },
    await_expression_is_only_allowed_within_an_async_function: { code: 1308, category: ts.DiagnosticCategory.Error, key: "await_expression_is_only_allowed_within_an_async_function_1308", message: "'await' expression is only allowed within an async function." },
    can_only_be_used_in_an_object_literal_property_inside_a_destructuring_assignment: { code: 1312, category: ts.DiagnosticCategory.Error, key: "can_only_be_used_in_an_object_literal_property_inside_a_destructuring_assignment_1312", message: "'=' can only be used in an object literal property inside a destructuring assignment." },
    The_body_of_an_if_statement_cannot_be_the_empty_statement: { code: 1313, category: ts.DiagnosticCategory.Error, key: "The_body_of_an_if_statement_cannot_be_the_empty_statement_1313", message: "The body of an 'if' statement cannot be the empty statement." },
    Global_module_exports_may_only_appear_in_module_files: { code: 1314, category: ts.DiagnosticCategory.Error, key: "Global_module_exports_may_only_appear_in_module_files_1314", message: "Global module exports may only appear in module files." },
    Global_module_exports_may_only_appear_in_declaration_files: { code: 1315, category: ts.DiagnosticCategory.Error, key: "Global_module_exports_may_only_appear_in_declaration_files_1315", message: "Global module exports may only appear in declaration files." },
    Global_module_exports_may_only_appear_at_top_level: { code: 1316, category: ts.DiagnosticCategory.Error, key: "Global_module_exports_may_only_appear_at_top_level_1316", message: "Global module exports may only appear at top level." },
    A_parameter_property_cannot_be_declared_using_a_rest_parameter: { code: 1317, category: ts.DiagnosticCategory.Error, key: "A_parameter_property_cannot_be_declared_using_a_rest_parameter_1317", message: "A parameter property cannot be declared using a rest parameter." },
    An_abstract_accessor_cannot_have_an_implementation: { code: 1318, category: ts.DiagnosticCategory.Error, key: "An_abstract_accessor_cannot_have_an_implementation_1318", message: "An abstract accessor cannot have an implementation." },
    Duplicate_identifier_0: { code: 2300, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_0_2300", message: "Duplicate identifier '{0}'." },
    Initializer_of_instance_member_variable_0_cannot_reference_identifier_1_declared_in_the_constructor: { code: 2301, category: ts.DiagnosticCategory.Error, key: "Initializer_of_instance_member_variable_0_cannot_reference_identifier_1_declared_in_the_constructor_2301", message: "Initializer of instance member variable '{0}' cannot reference identifier '{1}' declared in the constructor." },
    Static_members_cannot_reference_class_type_parameters: { code: 2302, category: ts.DiagnosticCategory.Error, key: "Static_members_cannot_reference_class_type_parameters_2302", message: "Static members cannot reference class type parameters." },
    Circular_definition_of_import_alias_0: { code: 2303, category: ts.DiagnosticCategory.Error, key: "Circular_definition_of_import_alias_0_2303", message: "Circular definition of import alias '{0}'." },
    Cannot_find_name_0: { code: 2304, category: ts.DiagnosticCategory.Error, key: "Cannot_find_name_0_2304", message: "Cannot find name '{0}'." },
    Module_0_has_no_exported_member_1: { code: 2305, category: ts.DiagnosticCategory.Error, key: "Module_0_has_no_exported_member_1_2305", message: "Module '{0}' has no exported member '{1}'." },
    File_0_is_not_a_module: { code: 2306, category: ts.DiagnosticCategory.Error, key: "File_0_is_not_a_module_2306", message: "File '{0}' is not a module." },
    Cannot_find_module_0: { code: 2307, category: ts.DiagnosticCategory.Error, key: "Cannot_find_module_0_2307", message: "Cannot find module '{0}'." },
    Module_0_has_already_exported_a_member_named_1_Consider_explicitly_re_exporting_to_resolve_the_ambiguity: { code: 2308, category: ts.DiagnosticCategory.Error, key: "Module_0_has_already_exported_a_member_named_1_Consider_explicitly_re_exporting_to_resolve_the_ambig_2308", message: "Module {0} has already exported a member named '{1}'. Consider explicitly re-exporting to resolve the ambiguity." },
    An_export_assignment_cannot_be_used_in_a_module_with_other_exported_elements: { code: 2309, category: ts.DiagnosticCategory.Error, key: "An_export_assignment_cannot_be_used_in_a_module_with_other_exported_elements_2309", message: "An export assignment cannot be used in a module with other exported elements." },
    Type_0_recursively_references_itself_as_a_base_type: { code: 2310, category: ts.DiagnosticCategory.Error, key: "Type_0_recursively_references_itself_as_a_base_type_2310", message: "Type '{0}' recursively references itself as a base type." },
    A_class_may_only_extend_another_class: { code: 2311, category: ts.DiagnosticCategory.Error, key: "A_class_may_only_extend_another_class_2311", message: "A class may only extend another class." },
    An_interface_may_only_extend_a_class_or_another_interface: { code: 2312, category: ts.DiagnosticCategory.Error, key: "An_interface_may_only_extend_a_class_or_another_interface_2312", message: "An interface may only extend a class or another interface." },
    Type_parameter_0_has_a_circular_constraint: { code: 2313, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_has_a_circular_constraint_2313", message: "Type parameter '{0}' has a circular constraint." },
    Generic_type_0_requires_1_type_argument_s: { code: 2314, category: ts.DiagnosticCategory.Error, key: "Generic_type_0_requires_1_type_argument_s_2314", message: "Generic type '{0}' requires {1} type argument(s)." },
    Type_0_is_not_generic: { code: 2315, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_generic_2315", message: "Type '{0}' is not generic." },
    Global_type_0_must_be_a_class_or_interface_type: { code: 2316, category: ts.DiagnosticCategory.Error, key: "Global_type_0_must_be_a_class_or_interface_type_2316", message: "Global type '{0}' must be a class or interface type." },
    Global_type_0_must_have_1_type_parameter_s: { code: 2317, category: ts.DiagnosticCategory.Error, key: "Global_type_0_must_have_1_type_parameter_s_2317", message: "Global type '{0}' must have {1} type parameter(s)." },
    Cannot_find_global_type_0: { code: 2318, category: ts.DiagnosticCategory.Error, key: "Cannot_find_global_type_0_2318", message: "Cannot find global type '{0}'." },
    Named_property_0_of_types_1_and_2_are_not_identical: { code: 2319, category: ts.DiagnosticCategory.Error, key: "Named_property_0_of_types_1_and_2_are_not_identical_2319", message: "Named property '{0}' of types '{1}' and '{2}' are not identical." },
    Interface_0_cannot_simultaneously_extend_types_1_and_2: { code: 2320, category: ts.DiagnosticCategory.Error, key: "Interface_0_cannot_simultaneously_extend_types_1_and_2_2320", message: "Interface '{0}' cannot simultaneously extend types '{1}' and '{2}'." },
    Excessive_stack_depth_comparing_types_0_and_1: { code: 2321, category: ts.DiagnosticCategory.Error, key: "Excessive_stack_depth_comparing_types_0_and_1_2321", message: "Excessive stack depth comparing types '{0}' and '{1}'." },
    Type_0_is_not_assignable_to_type_1: { code: 2322, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_assignable_to_type_1_2322", message: "Type '{0}' is not assignable to type '{1}'." },
    Cannot_redeclare_exported_variable_0: { code: 2323, category: ts.DiagnosticCategory.Error, key: "Cannot_redeclare_exported_variable_0_2323", message: "Cannot redeclare exported variable '{0}'." },
    Property_0_is_missing_in_type_1: { code: 2324, category: ts.DiagnosticCategory.Error, key: "Property_0_is_missing_in_type_1_2324", message: "Property '{0}' is missing in type '{1}'." },
    Property_0_is_private_in_type_1_but_not_in_type_2: { code: 2325, category: ts.DiagnosticCategory.Error, key: "Property_0_is_private_in_type_1_but_not_in_type_2_2325", message: "Property '{0}' is private in type '{1}' but not in type '{2}'." },
    Types_of_property_0_are_incompatible: { code: 2326, category: ts.DiagnosticCategory.Error, key: "Types_of_property_0_are_incompatible_2326", message: "Types of property '{0}' are incompatible." },
    Property_0_is_optional_in_type_1_but_required_in_type_2: { code: 2327, category: ts.DiagnosticCategory.Error, key: "Property_0_is_optional_in_type_1_but_required_in_type_2_2327", message: "Property '{0}' is optional in type '{1}' but required in type '{2}'." },
    Types_of_parameters_0_and_1_are_incompatible: { code: 2328, category: ts.DiagnosticCategory.Error, key: "Types_of_parameters_0_and_1_are_incompatible_2328", message: "Types of parameters '{0}' and '{1}' are incompatible." },
    Index_signature_is_missing_in_type_0: { code: 2329, category: ts.DiagnosticCategory.Error, key: "Index_signature_is_missing_in_type_0_2329", message: "Index signature is missing in type '{0}'." },
    Index_signatures_are_incompatible: { code: 2330, category: ts.DiagnosticCategory.Error, key: "Index_signatures_are_incompatible_2330", message: "Index signatures are incompatible." },
    this_cannot_be_referenced_in_a_module_or_namespace_body: { code: 2331, category: ts.DiagnosticCategory.Error, key: "this_cannot_be_referenced_in_a_module_or_namespace_body_2331", message: "'this' cannot be referenced in a module or namespace body." },
    this_cannot_be_referenced_in_current_location: { code: 2332, category: ts.DiagnosticCategory.Error, key: "this_cannot_be_referenced_in_current_location_2332", message: "'this' cannot be referenced in current location." },
    this_cannot_be_referenced_in_constructor_arguments: { code: 2333, category: ts.DiagnosticCategory.Error, key: "this_cannot_be_referenced_in_constructor_arguments_2333", message: "'this' cannot be referenced in constructor arguments." },
    this_cannot_be_referenced_in_a_static_property_initializer: { code: 2334, category: ts.DiagnosticCategory.Error, key: "this_cannot_be_referenced_in_a_static_property_initializer_2334", message: "'this' cannot be referenced in a static property initializer." },
    super_can_only_be_referenced_in_a_derived_class: { code: 2335, category: ts.DiagnosticCategory.Error, key: "super_can_only_be_referenced_in_a_derived_class_2335", message: "'super' can only be referenced in a derived class." },
    super_cannot_be_referenced_in_constructor_arguments: { code: 2336, category: ts.DiagnosticCategory.Error, key: "super_cannot_be_referenced_in_constructor_arguments_2336", message: "'super' cannot be referenced in constructor arguments." },
    Super_calls_are_not_permitted_outside_constructors_or_in_nested_functions_inside_constructors: { code: 2337, category: ts.DiagnosticCategory.Error, key: "Super_calls_are_not_permitted_outside_constructors_or_in_nested_functions_inside_constructors_2337", message: "Super calls are not permitted outside constructors or in nested functions inside constructors." },
    super_property_access_is_permitted_only_in_a_constructor_member_function_or_member_accessor_of_a_derived_class: { code: 2338, category: ts.DiagnosticCategory.Error, key: "super_property_access_is_permitted_only_in_a_constructor_member_function_or_member_accessor_of_a_der_2338", message: "'super' property access is permitted only in a constructor, member function, or member accessor of a derived class." },
    Property_0_does_not_exist_on_type_1: { code: 2339, category: ts.DiagnosticCategory.Error, key: "Property_0_does_not_exist_on_type_1_2339", message: "Property '{0}' does not exist on type '{1}'." },
    Only_public_and_protected_methods_of_the_base_class_are_accessible_via_the_super_keyword: { code: 2340, category: ts.DiagnosticCategory.Error, key: "Only_public_and_protected_methods_of_the_base_class_are_accessible_via_the_super_keyword_2340", message: "Only public and protected methods of the base class are accessible via the 'super' keyword." },
    Property_0_is_private_and_only_accessible_within_class_1: { code: 2341, category: ts.DiagnosticCategory.Error, key: "Property_0_is_private_and_only_accessible_within_class_1_2341", message: "Property '{0}' is private and only accessible within class '{1}'." },
    An_index_expression_argument_must_be_of_type_string_number_symbol_or_any: { code: 2342, category: ts.DiagnosticCategory.Error, key: "An_index_expression_argument_must_be_of_type_string_number_symbol_or_any_2342", message: "An index expression argument must be of type 'string', 'number', 'symbol', or 'any'." },
    This_syntax_requires_an_imported_helper_named_1_but_module_0_has_no_exported_member_1: { code: 2343, category: ts.DiagnosticCategory.Error, key: "This_syntax_requires_an_imported_helper_named_1_but_module_0_has_no_exported_member_1_2343", message: "This syntax requires an imported helper named '{1}', but module '{0}' has no exported member '{1}'." },
    Type_0_does_not_satisfy_the_constraint_1: { code: 2344, category: ts.DiagnosticCategory.Error, key: "Type_0_does_not_satisfy_the_constraint_1_2344", message: "Type '{0}' does not satisfy the constraint '{1}'." },
    Argument_of_type_0_is_not_assignable_to_parameter_of_type_1: { code: 2345, category: ts.DiagnosticCategory.Error, key: "Argument_of_type_0_is_not_assignable_to_parameter_of_type_1_2345", message: "Argument of type '{0}' is not assignable to parameter of type '{1}'." },
    Supplied_parameters_do_not_match_any_signature_of_call_target: { code: 2346, category: ts.DiagnosticCategory.Error, key: "Supplied_parameters_do_not_match_any_signature_of_call_target_2346", message: "Supplied parameters do not match any signature of call target." },
    Untyped_function_calls_may_not_accept_type_arguments: { code: 2347, category: ts.DiagnosticCategory.Error, key: "Untyped_function_calls_may_not_accept_type_arguments_2347", message: "Untyped function calls may not accept type arguments." },
    Value_of_type_0_is_not_callable_Did_you_mean_to_include_new: { code: 2348, category: ts.DiagnosticCategory.Error, key: "Value_of_type_0_is_not_callable_Did_you_mean_to_include_new_2348", message: "Value of type '{0}' is not callable. Did you mean to include 'new'?" },
    Cannot_invoke_an_expression_whose_type_lacks_a_call_signature_Type_0_has_no_compatible_call_signatures: { code: 2349, category: ts.DiagnosticCategory.Error, key: "Cannot_invoke_an_expression_whose_type_lacks_a_call_signature_Type_0_has_no_compatible_call_signatur_2349", message: "Cannot invoke an expression whose type lacks a call signature. Type '{0}' has no compatible call signatures." },
    Only_a_void_function_can_be_called_with_the_new_keyword: { code: 2350, category: ts.DiagnosticCategory.Error, key: "Only_a_void_function_can_be_called_with_the_new_keyword_2350", message: "Only a void function can be called with the 'new' keyword." },
    Cannot_use_new_with_an_expression_whose_type_lacks_a_call_or_construct_signature: { code: 2351, category: ts.DiagnosticCategory.Error, key: "Cannot_use_new_with_an_expression_whose_type_lacks_a_call_or_construct_signature_2351", message: "Cannot use 'new' with an expression whose type lacks a call or construct signature." },
    Type_0_cannot_be_converted_to_type_1: { code: 2352, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_converted_to_type_1_2352", message: "Type '{0}' cannot be converted to type '{1}'." },
    Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1: { code: 2353, category: ts.DiagnosticCategory.Error, key: "Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1_2353", message: "Object literal may only specify known properties, and '{0}' does not exist in type '{1}'." },
    This_syntax_requires_an_imported_helper_but_module_0_cannot_be_found: { code: 2354, category: ts.DiagnosticCategory.Error, key: "This_syntax_requires_an_imported_helper_but_module_0_cannot_be_found_2354", message: "This syntax requires an imported helper but module '{0}' cannot be found." },
    A_function_whose_declared_type_is_neither_void_nor_any_must_return_a_value: { code: 2355, category: ts.DiagnosticCategory.Error, key: "A_function_whose_declared_type_is_neither_void_nor_any_must_return_a_value_2355", message: "A function whose declared type is neither 'void' nor 'any' must return a value." },
    An_arithmetic_operand_must_be_of_type_any_number_or_an_enum_type: { code: 2356, category: ts.DiagnosticCategory.Error, key: "An_arithmetic_operand_must_be_of_type_any_number_or_an_enum_type_2356", message: "An arithmetic operand must be of type 'any', 'number' or an enum type." },
    The_operand_of_an_increment_or_decrement_operator_must_be_a_variable_or_a_property_access: { code: 2357, category: ts.DiagnosticCategory.Error, key: "The_operand_of_an_increment_or_decrement_operator_must_be_a_variable_or_a_property_access_2357", message: "The operand of an increment or decrement operator must be a variable or a property access." },
    The_left_hand_side_of_an_instanceof_expression_must_be_of_type_any_an_object_type_or_a_type_parameter: { code: 2358, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_an_instanceof_expression_must_be_of_type_any_an_object_type_or_a_type_paramete_2358", message: "The left-hand side of an 'instanceof' expression must be of type 'any', an object type or a type parameter." },
    The_right_hand_side_of_an_instanceof_expression_must_be_of_type_any_or_of_a_type_assignable_to_the_Function_interface_type: { code: 2359, category: ts.DiagnosticCategory.Error, key: "The_right_hand_side_of_an_instanceof_expression_must_be_of_type_any_or_of_a_type_assignable_to_the_F_2359", message: "The right-hand side of an 'instanceof' expression must be of type 'any' or of a type assignable to the 'Function' interface type." },
    The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol: { code: 2360, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol_2360", message: "The left-hand side of an 'in' expression must be of type 'any', 'string', 'number', or 'symbol'." },
    The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter: { code: 2361, category: ts.DiagnosticCategory.Error, key: "The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter_2361", message: "The right-hand side of an 'in' expression must be of type 'any', an object type or a type parameter" },
    The_left_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type: { code: 2362, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type_2362", message: "The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type." },
    The_right_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type: { code: 2363, category: ts.DiagnosticCategory.Error, key: "The_right_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type_2363", message: "The right-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type." },
    The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access: { code: 2364, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access_2364", message: "The left-hand side of an assignment expression must be a variable or a property access." },
    Operator_0_cannot_be_applied_to_types_1_and_2: { code: 2365, category: ts.DiagnosticCategory.Error, key: "Operator_0_cannot_be_applied_to_types_1_and_2_2365", message: "Operator '{0}' cannot be applied to types '{1}' and '{2}'." },
    Function_lacks_ending_return_statement_and_return_type_does_not_include_undefined: { code: 2366, category: ts.DiagnosticCategory.Error, key: "Function_lacks_ending_return_statement_and_return_type_does_not_include_undefined_2366", message: "Function lacks ending return statement and return type does not include 'undefined'." },
    Type_parameter_name_cannot_be_0: { code: 2368, category: ts.DiagnosticCategory.Error, key: "Type_parameter_name_cannot_be_0_2368", message: "Type parameter name cannot be '{0}'" },
    A_parameter_property_is_only_allowed_in_a_constructor_implementation: { code: 2369, category: ts.DiagnosticCategory.Error, key: "A_parameter_property_is_only_allowed_in_a_constructor_implementation_2369", message: "A parameter property is only allowed in a constructor implementation." },
    A_rest_parameter_must_be_of_an_array_type: { code: 2370, category: ts.DiagnosticCategory.Error, key: "A_rest_parameter_must_be_of_an_array_type_2370", message: "A rest parameter must be of an array type." },
    A_parameter_initializer_is_only_allowed_in_a_function_or_constructor_implementation: { code: 2371, category: ts.DiagnosticCategory.Error, key: "A_parameter_initializer_is_only_allowed_in_a_function_or_constructor_implementation_2371", message: "A parameter initializer is only allowed in a function or constructor implementation." },
    Parameter_0_cannot_be_referenced_in_its_initializer: { code: 2372, category: ts.DiagnosticCategory.Error, key: "Parameter_0_cannot_be_referenced_in_its_initializer_2372", message: "Parameter '{0}' cannot be referenced in its initializer." },
    Initializer_of_parameter_0_cannot_reference_identifier_1_declared_after_it: { code: 2373, category: ts.DiagnosticCategory.Error, key: "Initializer_of_parameter_0_cannot_reference_identifier_1_declared_after_it_2373", message: "Initializer of parameter '{0}' cannot reference identifier '{1}' declared after it." },
    Duplicate_string_index_signature: { code: 2374, category: ts.DiagnosticCategory.Error, key: "Duplicate_string_index_signature_2374", message: "Duplicate string index signature." },
    Duplicate_number_index_signature: { code: 2375, category: ts.DiagnosticCategory.Error, key: "Duplicate_number_index_signature_2375", message: "Duplicate number index signature." },
    A_super_call_must_be_the_first_statement_in_the_constructor_when_a_class_contains_initialized_properties_or_has_parameter_properties: { code: 2376, category: ts.DiagnosticCategory.Error, key: "A_super_call_must_be_the_first_statement_in_the_constructor_when_a_class_contains_initialized_proper_2376", message: "A 'super' call must be the first statement in the constructor when a class contains initialized properties or has parameter properties." },
    Constructors_for_derived_classes_must_contain_a_super_call: { code: 2377, category: ts.DiagnosticCategory.Error, key: "Constructors_for_derived_classes_must_contain_a_super_call_2377", message: "Constructors for derived classes must contain a 'super' call." },
    A_get_accessor_must_return_a_value: { code: 2378, category: ts.DiagnosticCategory.Error, key: "A_get_accessor_must_return_a_value_2378", message: "A 'get' accessor must return a value." },
    Getter_and_setter_accessors_do_not_agree_in_visibility: { code: 2379, category: ts.DiagnosticCategory.Error, key: "Getter_and_setter_accessors_do_not_agree_in_visibility_2379", message: "Getter and setter accessors do not agree in visibility." },
    get_and_set_accessor_must_have_the_same_type: { code: 2380, category: ts.DiagnosticCategory.Error, key: "get_and_set_accessor_must_have_the_same_type_2380", message: "'get' and 'set' accessor must have the same type." },
    A_signature_with_an_implementation_cannot_use_a_string_literal_type: { code: 2381, category: ts.DiagnosticCategory.Error, key: "A_signature_with_an_implementation_cannot_use_a_string_literal_type_2381", message: "A signature with an implementation cannot use a string literal type." },
    Specialized_overload_signature_is_not_assignable_to_any_non_specialized_signature: { code: 2382, category: ts.DiagnosticCategory.Error, key: "Specialized_overload_signature_is_not_assignable_to_any_non_specialized_signature_2382", message: "Specialized overload signature is not assignable to any non-specialized signature." },
    Overload_signatures_must_all_be_exported_or_non_exported: { code: 2383, category: ts.DiagnosticCategory.Error, key: "Overload_signatures_must_all_be_exported_or_non_exported_2383", message: "Overload signatures must all be exported or non-exported." },
    Overload_signatures_must_all_be_ambient_or_non_ambient: { code: 2384, category: ts.DiagnosticCategory.Error, key: "Overload_signatures_must_all_be_ambient_or_non_ambient_2384", message: "Overload signatures must all be ambient or non-ambient." },
    Overload_signatures_must_all_be_public_private_or_protected: { code: 2385, category: ts.DiagnosticCategory.Error, key: "Overload_signatures_must_all_be_public_private_or_protected_2385", message: "Overload signatures must all be public, private or protected." },
    Overload_signatures_must_all_be_optional_or_required: { code: 2386, category: ts.DiagnosticCategory.Error, key: "Overload_signatures_must_all_be_optional_or_required_2386", message: "Overload signatures must all be optional or required." },
    Function_overload_must_be_static: { code: 2387, category: ts.DiagnosticCategory.Error, key: "Function_overload_must_be_static_2387", message: "Function overload must be static." },
    Function_overload_must_not_be_static: { code: 2388, category: ts.DiagnosticCategory.Error, key: "Function_overload_must_not_be_static_2388", message: "Function overload must not be static." },
    Function_implementation_name_must_be_0: { code: 2389, category: ts.DiagnosticCategory.Error, key: "Function_implementation_name_must_be_0_2389", message: "Function implementation name must be '{0}'." },
    Constructor_implementation_is_missing: { code: 2390, category: ts.DiagnosticCategory.Error, key: "Constructor_implementation_is_missing_2390", message: "Constructor implementation is missing." },
    Function_implementation_is_missing_or_not_immediately_following_the_declaration: { code: 2391, category: ts.DiagnosticCategory.Error, key: "Function_implementation_is_missing_or_not_immediately_following_the_declaration_2391", message: "Function implementation is missing or not immediately following the declaration." },
    Multiple_constructor_implementations_are_not_allowed: { code: 2392, category: ts.DiagnosticCategory.Error, key: "Multiple_constructor_implementations_are_not_allowed_2392", message: "Multiple constructor implementations are not allowed." },
    Duplicate_function_implementation: { code: 2393, category: ts.DiagnosticCategory.Error, key: "Duplicate_function_implementation_2393", message: "Duplicate function implementation." },
    Overload_signature_is_not_compatible_with_function_implementation: { code: 2394, category: ts.DiagnosticCategory.Error, key: "Overload_signature_is_not_compatible_with_function_implementation_2394", message: "Overload signature is not compatible with function implementation." },
    Individual_declarations_in_merged_declaration_0_must_be_all_exported_or_all_local: { code: 2395, category: ts.DiagnosticCategory.Error, key: "Individual_declarations_in_merged_declaration_0_must_be_all_exported_or_all_local_2395", message: "Individual declarations in merged declaration '{0}' must be all exported or all local." },
    Duplicate_identifier_arguments_Compiler_uses_arguments_to_initialize_rest_parameters: { code: 2396, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_arguments_Compiler_uses_arguments_to_initialize_rest_parameters_2396", message: "Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters." },
    Declaration_name_conflicts_with_built_in_global_identifier_0: { code: 2397, category: ts.DiagnosticCategory.Error, key: "Declaration_name_conflicts_with_built_in_global_identifier_0_2397", message: "Declaration name conflicts with built-in global identifier '{0}'." },
    Duplicate_identifier_this_Compiler_uses_variable_declaration_this_to_capture_this_reference: { code: 2399, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_this_Compiler_uses_variable_declaration_this_to_capture_this_reference_2399", message: "Duplicate identifier '_this'. Compiler uses variable declaration '_this' to capture 'this' reference." },
    Expression_resolves_to_variable_declaration_this_that_compiler_uses_to_capture_this_reference: { code: 2400, category: ts.DiagnosticCategory.Error, key: "Expression_resolves_to_variable_declaration_this_that_compiler_uses_to_capture_this_reference_2400", message: "Expression resolves to variable declaration '_this' that compiler uses to capture 'this' reference." },
    Duplicate_identifier_super_Compiler_uses_super_to_capture_base_class_reference: { code: 2401, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_super_Compiler_uses_super_to_capture_base_class_reference_2401", message: "Duplicate identifier '_super'. Compiler uses '_super' to capture base class reference." },
    Expression_resolves_to_super_that_compiler_uses_to_capture_base_class_reference: { code: 2402, category: ts.DiagnosticCategory.Error, key: "Expression_resolves_to_super_that_compiler_uses_to_capture_base_class_reference_2402", message: "Expression resolves to '_super' that compiler uses to capture base class reference." },
    Subsequent_variable_declarations_must_have_the_same_type_Variable_0_must_be_of_type_1_but_here_has_type_2: { code: 2403, category: ts.DiagnosticCategory.Error, key: "Subsequent_variable_declarations_must_have_the_same_type_Variable_0_must_be_of_type_1_but_here_has_t_2403", message: "Subsequent variable declarations must have the same type.  Variable '{0}' must be of type '{1}', but here has type '{2}'." },
    The_left_hand_side_of_a_for_in_statement_cannot_use_a_type_annotation: { code: 2404, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_a_for_in_statement_cannot_use_a_type_annotation_2404", message: "The left-hand side of a 'for...in' statement cannot use a type annotation." },
    The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any: { code: 2405, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any_2405", message: "The left-hand side of a 'for...in' statement must be of type 'string' or 'any'." },
    The_left_hand_side_of_a_for_in_statement_must_be_a_variable_or_a_property_access: { code: 2406, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_a_for_in_statement_must_be_a_variable_or_a_property_access_2406", message: "The left-hand side of a 'for...in' statement must be a variable or a property access." },
    The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter: { code: 2407, category: ts.DiagnosticCategory.Error, key: "The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter_2407", message: "The right-hand side of a 'for...in' statement must be of type 'any', an object type or a type parameter." },
    Setters_cannot_return_a_value: { code: 2408, category: ts.DiagnosticCategory.Error, key: "Setters_cannot_return_a_value_2408", message: "Setters cannot return a value." },
    Return_type_of_constructor_signature_must_be_assignable_to_the_instance_type_of_the_class: { code: 2409, category: ts.DiagnosticCategory.Error, key: "Return_type_of_constructor_signature_must_be_assignable_to_the_instance_type_of_the_class_2409", message: "Return type of constructor signature must be assignable to the instance type of the class" },
    The_with_statement_is_not_supported_All_symbols_in_a_with_block_will_have_type_any: { code: 2410, category: ts.DiagnosticCategory.Error, key: "The_with_statement_is_not_supported_All_symbols_in_a_with_block_will_have_type_any_2410", message: "The 'with' statement is not supported. All symbols in a 'with' block will have type 'any'." },
    Property_0_of_type_1_is_not_assignable_to_string_index_type_2: { code: 2411, category: ts.DiagnosticCategory.Error, key: "Property_0_of_type_1_is_not_assignable_to_string_index_type_2_2411", message: "Property '{0}' of type '{1}' is not assignable to string index type '{2}'." },
    Property_0_of_type_1_is_not_assignable_to_numeric_index_type_2: { code: 2412, category: ts.DiagnosticCategory.Error, key: "Property_0_of_type_1_is_not_assignable_to_numeric_index_type_2_2412", message: "Property '{0}' of type '{1}' is not assignable to numeric index type '{2}'." },
    Numeric_index_type_0_is_not_assignable_to_string_index_type_1: { code: 2413, category: ts.DiagnosticCategory.Error, key: "Numeric_index_type_0_is_not_assignable_to_string_index_type_1_2413", message: "Numeric index type '{0}' is not assignable to string index type '{1}'." },
    Class_name_cannot_be_0: { code: 2414, category: ts.DiagnosticCategory.Error, key: "Class_name_cannot_be_0_2414", message: "Class name cannot be '{0}'" },
    Class_0_incorrectly_extends_base_class_1: { code: 2415, category: ts.DiagnosticCategory.Error, key: "Class_0_incorrectly_extends_base_class_1_2415", message: "Class '{0}' incorrectly extends base class '{1}'." },
    Class_static_side_0_incorrectly_extends_base_class_static_side_1: { code: 2417, category: ts.DiagnosticCategory.Error, key: "Class_static_side_0_incorrectly_extends_base_class_static_side_1_2417", message: "Class static side '{0}' incorrectly extends base class static side '{1}'." },
    Class_0_incorrectly_implements_interface_1: { code: 2420, category: ts.DiagnosticCategory.Error, key: "Class_0_incorrectly_implements_interface_1_2420", message: "Class '{0}' incorrectly implements interface '{1}'." },
    A_class_may_only_implement_another_class_or_interface: { code: 2422, category: ts.DiagnosticCategory.Error, key: "A_class_may_only_implement_another_class_or_interface_2422", message: "A class may only implement another class or interface." },
    Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_accessor: { code: 2423, category: ts.DiagnosticCategory.Error, key: "Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_access_2423", message: "Class '{0}' defines instance member function '{1}', but extended class '{2}' defines it as instance member accessor." },
    Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_property: { code: 2424, category: ts.DiagnosticCategory.Error, key: "Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_proper_2424", message: "Class '{0}' defines instance member function '{1}', but extended class '{2}' defines it as instance member property." },
    Class_0_defines_instance_member_property_1_but_extended_class_2_defines_it_as_instance_member_function: { code: 2425, category: ts.DiagnosticCategory.Error, key: "Class_0_defines_instance_member_property_1_but_extended_class_2_defines_it_as_instance_member_functi_2425", message: "Class '{0}' defines instance member property '{1}', but extended class '{2}' defines it as instance member function." },
    Class_0_defines_instance_member_accessor_1_but_extended_class_2_defines_it_as_instance_member_function: { code: 2426, category: ts.DiagnosticCategory.Error, key: "Class_0_defines_instance_member_accessor_1_but_extended_class_2_defines_it_as_instance_member_functi_2426", message: "Class '{0}' defines instance member accessor '{1}', but extended class '{2}' defines it as instance member function." },
    Interface_name_cannot_be_0: { code: 2427, category: ts.DiagnosticCategory.Error, key: "Interface_name_cannot_be_0_2427", message: "Interface name cannot be '{0}'" },
    All_declarations_of_0_must_have_identical_type_parameters: { code: 2428, category: ts.DiagnosticCategory.Error, key: "All_declarations_of_0_must_have_identical_type_parameters_2428", message: "All declarations of '{0}' must have identical type parameters." },
    Interface_0_incorrectly_extends_interface_1: { code: 2430, category: ts.DiagnosticCategory.Error, key: "Interface_0_incorrectly_extends_interface_1_2430", message: "Interface '{0}' incorrectly extends interface '{1}'." },
    Enum_name_cannot_be_0: { code: 2431, category: ts.DiagnosticCategory.Error, key: "Enum_name_cannot_be_0_2431", message: "Enum name cannot be '{0}'" },
    In_an_enum_with_multiple_declarations_only_one_declaration_can_omit_an_initializer_for_its_first_enum_element: { code: 2432, category: ts.DiagnosticCategory.Error, key: "In_an_enum_with_multiple_declarations_only_one_declaration_can_omit_an_initializer_for_its_first_enu_2432", message: "In an enum with multiple declarations, only one declaration can omit an initializer for its first enum element." },
    A_namespace_declaration_cannot_be_in_a_different_file_from_a_class_or_function_with_which_it_is_merged: { code: 2433, category: ts.DiagnosticCategory.Error, key: "A_namespace_declaration_cannot_be_in_a_different_file_from_a_class_or_function_with_which_it_is_merg_2433", message: "A namespace declaration cannot be in a different file from a class or function with which it is merged" },
    A_namespace_declaration_cannot_be_located_prior_to_a_class_or_function_with_which_it_is_merged: { code: 2434, category: ts.DiagnosticCategory.Error, key: "A_namespace_declaration_cannot_be_located_prior_to_a_class_or_function_with_which_it_is_merged_2434", message: "A namespace declaration cannot be located prior to a class or function with which it is merged" },
    Ambient_modules_cannot_be_nested_in_other_modules_or_namespaces: { code: 2435, category: ts.DiagnosticCategory.Error, key: "Ambient_modules_cannot_be_nested_in_other_modules_or_namespaces_2435", message: "Ambient modules cannot be nested in other modules or namespaces." },
    Ambient_module_declaration_cannot_specify_relative_module_name: { code: 2436, category: ts.DiagnosticCategory.Error, key: "Ambient_module_declaration_cannot_specify_relative_module_name_2436", message: "Ambient module declaration cannot specify relative module name." },
    Module_0_is_hidden_by_a_local_declaration_with_the_same_name: { code: 2437, category: ts.DiagnosticCategory.Error, key: "Module_0_is_hidden_by_a_local_declaration_with_the_same_name_2437", message: "Module '{0}' is hidden by a local declaration with the same name" },
    Import_name_cannot_be_0: { code: 2438, category: ts.DiagnosticCategory.Error, key: "Import_name_cannot_be_0_2438", message: "Import name cannot be '{0}'" },
    Import_or_export_declaration_in_an_ambient_module_declaration_cannot_reference_module_through_relative_module_name: { code: 2439, category: ts.DiagnosticCategory.Error, key: "Import_or_export_declaration_in_an_ambient_module_declaration_cannot_reference_module_through_relati_2439", message: "Import or export declaration in an ambient module declaration cannot reference module through relative module name." },
    Import_declaration_conflicts_with_local_declaration_of_0: { code: 2440, category: ts.DiagnosticCategory.Error, key: "Import_declaration_conflicts_with_local_declaration_of_0_2440", message: "Import declaration conflicts with local declaration of '{0}'" },
    Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module: { code: 2441, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module_2441", message: "Duplicate identifier '{0}'. Compiler reserves name '{1}' in top level scope of a module." },
    Types_have_separate_declarations_of_a_private_property_0: { code: 2442, category: ts.DiagnosticCategory.Error, key: "Types_have_separate_declarations_of_a_private_property_0_2442", message: "Types have separate declarations of a private property '{0}'." },
    Property_0_is_protected_but_type_1_is_not_a_class_derived_from_2: { code: 2443, category: ts.DiagnosticCategory.Error, key: "Property_0_is_protected_but_type_1_is_not_a_class_derived_from_2_2443", message: "Property '{0}' is protected but type '{1}' is not a class derived from '{2}'." },
    Property_0_is_protected_in_type_1_but_public_in_type_2: { code: 2444, category: ts.DiagnosticCategory.Error, key: "Property_0_is_protected_in_type_1_but_public_in_type_2_2444", message: "Property '{0}' is protected in type '{1}' but public in type '{2}'." },
    Property_0_is_protected_and_only_accessible_within_class_1_and_its_subclasses: { code: 2445, category: ts.DiagnosticCategory.Error, key: "Property_0_is_protected_and_only_accessible_within_class_1_and_its_subclasses_2445", message: "Property '{0}' is protected and only accessible within class '{1}' and its subclasses." },
    Property_0_is_protected_and_only_accessible_through_an_instance_of_class_1: { code: 2446, category: ts.DiagnosticCategory.Error, key: "Property_0_is_protected_and_only_accessible_through_an_instance_of_class_1_2446", message: "Property '{0}' is protected and only accessible through an instance of class '{1}'." },
    The_0_operator_is_not_allowed_for_boolean_types_Consider_using_1_instead: { code: 2447, category: ts.DiagnosticCategory.Error, key: "The_0_operator_is_not_allowed_for_boolean_types_Consider_using_1_instead_2447", message: "The '{0}' operator is not allowed for boolean types. Consider using '{1}' instead." },
    Block_scoped_variable_0_used_before_its_declaration: { code: 2448, category: ts.DiagnosticCategory.Error, key: "Block_scoped_variable_0_used_before_its_declaration_2448", message: "Block-scoped variable '{0}' used before its declaration." },
    Cannot_redeclare_block_scoped_variable_0: { code: 2451, category: ts.DiagnosticCategory.Error, key: "Cannot_redeclare_block_scoped_variable_0_2451", message: "Cannot redeclare block-scoped variable '{0}'." },
    An_enum_member_cannot_have_a_numeric_name: { code: 2452, category: ts.DiagnosticCategory.Error, key: "An_enum_member_cannot_have_a_numeric_name_2452", message: "An enum member cannot have a numeric name." },
    The_type_argument_for_type_parameter_0_cannot_be_inferred_from_the_usage_Consider_specifying_the_type_arguments_explicitly: { code: 2453, category: ts.DiagnosticCategory.Error, key: "The_type_argument_for_type_parameter_0_cannot_be_inferred_from_the_usage_Consider_specifying_the_typ_2453", message: "The type argument for type parameter '{0}' cannot be inferred from the usage. Consider specifying the type arguments explicitly." },
    Variable_0_is_used_before_being_assigned: { code: 2454, category: ts.DiagnosticCategory.Error, key: "Variable_0_is_used_before_being_assigned_2454", message: "Variable '{0}' is used before being assigned." },
    Type_argument_candidate_1_is_not_a_valid_type_argument_because_it_is_not_a_supertype_of_candidate_0: { code: 2455, category: ts.DiagnosticCategory.Error, key: "Type_argument_candidate_1_is_not_a_valid_type_argument_because_it_is_not_a_supertype_of_candidate_0_2455", message: "Type argument candidate '{1}' is not a valid type argument because it is not a supertype of candidate '{0}'." },
    Type_alias_0_circularly_references_itself: { code: 2456, category: ts.DiagnosticCategory.Error, key: "Type_alias_0_circularly_references_itself_2456", message: "Type alias '{0}' circularly references itself." },
    Type_alias_name_cannot_be_0: { code: 2457, category: ts.DiagnosticCategory.Error, key: "Type_alias_name_cannot_be_0_2457", message: "Type alias name cannot be '{0}'" },
    An_AMD_module_cannot_have_multiple_name_assignments: { code: 2458, category: ts.DiagnosticCategory.Error, key: "An_AMD_module_cannot_have_multiple_name_assignments_2458", message: "An AMD module cannot have multiple name assignments." },
    Type_0_has_no_property_1_and_no_string_index_signature: { code: 2459, category: ts.DiagnosticCategory.Error, key: "Type_0_has_no_property_1_and_no_string_index_signature_2459", message: "Type '{0}' has no property '{1}' and no string index signature." },
    Type_0_has_no_property_1: { code: 2460, category: ts.DiagnosticCategory.Error, key: "Type_0_has_no_property_1_2460", message: "Type '{0}' has no property '{1}'." },
    Type_0_is_not_an_array_type: { code: 2461, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_an_array_type_2461", message: "Type '{0}' is not an array type." },
    A_rest_element_must_be_last_in_a_destructuring_pattern: { code: 2462, category: ts.DiagnosticCategory.Error, key: "A_rest_element_must_be_last_in_a_destructuring_pattern_2462", message: "A rest element must be last in a destructuring pattern" },
    A_binding_pattern_parameter_cannot_be_optional_in_an_implementation_signature: { code: 2463, category: ts.DiagnosticCategory.Error, key: "A_binding_pattern_parameter_cannot_be_optional_in_an_implementation_signature_2463", message: "A binding pattern parameter cannot be optional in an implementation signature." },
    A_computed_property_name_must_be_of_type_string_number_symbol_or_any: { code: 2464, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_must_be_of_type_string_number_symbol_or_any_2464", message: "A computed property name must be of type 'string', 'number', 'symbol', or 'any'." },
    this_cannot_be_referenced_in_a_computed_property_name: { code: 2465, category: ts.DiagnosticCategory.Error, key: "this_cannot_be_referenced_in_a_computed_property_name_2465", message: "'this' cannot be referenced in a computed property name." },
    super_cannot_be_referenced_in_a_computed_property_name: { code: 2466, category: ts.DiagnosticCategory.Error, key: "super_cannot_be_referenced_in_a_computed_property_name_2466", message: "'super' cannot be referenced in a computed property name." },
    A_computed_property_name_cannot_reference_a_type_parameter_from_its_containing_type: { code: 2467, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_cannot_reference_a_type_parameter_from_its_containing_type_2467", message: "A computed property name cannot reference a type parameter from its containing type." },
    Cannot_find_global_value_0: { code: 2468, category: ts.DiagnosticCategory.Error, key: "Cannot_find_global_value_0_2468", message: "Cannot find global value '{0}'." },
    The_0_operator_cannot_be_applied_to_type_symbol: { code: 2469, category: ts.DiagnosticCategory.Error, key: "The_0_operator_cannot_be_applied_to_type_symbol_2469", message: "The '{0}' operator cannot be applied to type 'symbol'." },
    Symbol_reference_does_not_refer_to_the_global_Symbol_constructor_object: { code: 2470, category: ts.DiagnosticCategory.Error, key: "Symbol_reference_does_not_refer_to_the_global_Symbol_constructor_object_2470", message: "'Symbol' reference does not refer to the global Symbol constructor object." },
    A_computed_property_name_of_the_form_0_must_be_of_type_symbol: { code: 2471, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_of_the_form_0_must_be_of_type_symbol_2471", message: "A computed property name of the form '{0}' must be of type 'symbol'." },
    Spread_operator_in_new_expressions_is_only_available_when_targeting_ECMAScript_5_and_higher: { code: 2472, category: ts.DiagnosticCategory.Error, key: "Spread_operator_in_new_expressions_is_only_available_when_targeting_ECMAScript_5_and_higher_2472", message: "Spread operator in 'new' expressions is only available when targeting ECMAScript 5 and higher." },
    Enum_declarations_must_all_be_const_or_non_const: { code: 2473, category: ts.DiagnosticCategory.Error, key: "Enum_declarations_must_all_be_const_or_non_const_2473", message: "Enum declarations must all be const or non-const." },
    In_const_enum_declarations_member_initializer_must_be_constant_expression: { code: 2474, category: ts.DiagnosticCategory.Error, key: "In_const_enum_declarations_member_initializer_must_be_constant_expression_2474", message: "In 'const' enum declarations member initializer must be constant expression." },
    const_enums_can_only_be_used_in_property_or_index_access_expressions_or_the_right_hand_side_of_an_import_declaration_or_export_assignment: { code: 2475, category: ts.DiagnosticCategory.Error, key: "const_enums_can_only_be_used_in_property_or_index_access_expressions_or_the_right_hand_side_of_an_im_2475", message: "'const' enums can only be used in property or index access expressions or the right hand side of an import declaration or export assignment." },
    A_const_enum_member_can_only_be_accessed_using_a_string_literal: { code: 2476, category: ts.DiagnosticCategory.Error, key: "A_const_enum_member_can_only_be_accessed_using_a_string_literal_2476", message: "A const enum member can only be accessed using a string literal." },
    const_enum_member_initializer_was_evaluated_to_a_non_finite_value: { code: 2477, category: ts.DiagnosticCategory.Error, key: "const_enum_member_initializer_was_evaluated_to_a_non_finite_value_2477", message: "'const' enum member initializer was evaluated to a non-finite value." },
    const_enum_member_initializer_was_evaluated_to_disallowed_value_NaN: { code: 2478, category: ts.DiagnosticCategory.Error, key: "const_enum_member_initializer_was_evaluated_to_disallowed_value_NaN_2478", message: "'const' enum member initializer was evaluated to disallowed value 'NaN'." },
    Property_0_does_not_exist_on_const_enum_1: { code: 2479, category: ts.DiagnosticCategory.Error, key: "Property_0_does_not_exist_on_const_enum_1_2479", message: "Property '{0}' does not exist on 'const' enum '{1}'." },
    let_is_not_allowed_to_be_used_as_a_name_in_let_or_const_declarations: { code: 2480, category: ts.DiagnosticCategory.Error, key: "let_is_not_allowed_to_be_used_as_a_name_in_let_or_const_declarations_2480", message: "'let' is not allowed to be used as a name in 'let' or 'const' declarations." },
    Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1: { code: 2481, category: ts.DiagnosticCategory.Error, key: "Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1_2481", message: "Cannot initialize outer scoped variable '{0}' in the same scope as block scoped declaration '{1}'." },
    The_left_hand_side_of_a_for_of_statement_cannot_use_a_type_annotation: { code: 2483, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_a_for_of_statement_cannot_use_a_type_annotation_2483", message: "The left-hand side of a 'for...of' statement cannot use a type annotation." },
    Export_declaration_conflicts_with_exported_declaration_of_0: { code: 2484, category: ts.DiagnosticCategory.Error, key: "Export_declaration_conflicts_with_exported_declaration_of_0_2484", message: "Export declaration conflicts with exported declaration of '{0}'" },
    The_left_hand_side_of_a_for_of_statement_must_be_a_variable_or_a_property_access: { code: 2487, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_a_for_of_statement_must_be_a_variable_or_a_property_access_2487", message: "The left-hand side of a 'for...of' statement must be a variable or a property access." },
    Type_must_have_a_Symbol_iterator_method_that_returns_an_iterator: { code: 2488, category: ts.DiagnosticCategory.Error, key: "Type_must_have_a_Symbol_iterator_method_that_returns_an_iterator_2488", message: "Type must have a '[Symbol.iterator]()' method that returns an iterator." },
    An_iterator_must_have_a_next_method: { code: 2489, category: ts.DiagnosticCategory.Error, key: "An_iterator_must_have_a_next_method_2489", message: "An iterator must have a 'next()' method." },
    The_type_returned_by_the_next_method_of_an_iterator_must_have_a_value_property: { code: 2490, category: ts.DiagnosticCategory.Error, key: "The_type_returned_by_the_next_method_of_an_iterator_must_have_a_value_property_2490", message: "The type returned by the 'next()' method of an iterator must have a 'value' property." },
    The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern: { code: 2491, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern_2491", message: "The left-hand side of a 'for...in' statement cannot be a destructuring pattern." },
    Cannot_redeclare_identifier_0_in_catch_clause: { code: 2492, category: ts.DiagnosticCategory.Error, key: "Cannot_redeclare_identifier_0_in_catch_clause_2492", message: "Cannot redeclare identifier '{0}' in catch clause" },
    Tuple_type_0_with_length_1_cannot_be_assigned_to_tuple_with_length_2: { code: 2493, category: ts.DiagnosticCategory.Error, key: "Tuple_type_0_with_length_1_cannot_be_assigned_to_tuple_with_length_2_2493", message: "Tuple type '{0}' with length '{1}' cannot be assigned to tuple with length '{2}'." },
    Using_a_string_in_a_for_of_statement_is_only_supported_in_ECMAScript_5_and_higher: { code: 2494, category: ts.DiagnosticCategory.Error, key: "Using_a_string_in_a_for_of_statement_is_only_supported_in_ECMAScript_5_and_higher_2494", message: "Using a string in a 'for...of' statement is only supported in ECMAScript 5 and higher." },
    Type_0_is_not_an_array_type_or_a_string_type: { code: 2495, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_an_array_type_or_a_string_type_2495", message: "Type '{0}' is not an array type or a string type." },
    The_arguments_object_cannot_be_referenced_in_an_arrow_function_in_ES3_and_ES5_Consider_using_a_standard_function_expression: { code: 2496, category: ts.DiagnosticCategory.Error, key: "The_arguments_object_cannot_be_referenced_in_an_arrow_function_in_ES3_and_ES5_Consider_using_a_stand_2496", message: "The 'arguments' object cannot be referenced in an arrow function in ES3 and ES5. Consider using a standard function expression." },
    Module_0_resolves_to_a_non_module_entity_and_cannot_be_imported_using_this_construct: { code: 2497, category: ts.DiagnosticCategory.Error, key: "Module_0_resolves_to_a_non_module_entity_and_cannot_be_imported_using_this_construct_2497", message: "Module '{0}' resolves to a non-module entity and cannot be imported using this construct." },
    Module_0_uses_export_and_cannot_be_used_with_export_Asterisk: { code: 2498, category: ts.DiagnosticCategory.Error, key: "Module_0_uses_export_and_cannot_be_used_with_export_Asterisk_2498", message: "Module '{0}' uses 'export =' and cannot be used with 'export *'." },
    An_interface_can_only_extend_an_identifier_Slashqualified_name_with_optional_type_arguments: { code: 2499, category: ts.DiagnosticCategory.Error, key: "An_interface_can_only_extend_an_identifier_Slashqualified_name_with_optional_type_arguments_2499", message: "An interface can only extend an identifier/qualified-name with optional type arguments." },
    A_class_can_only_implement_an_identifier_Slashqualified_name_with_optional_type_arguments: { code: 2500, category: ts.DiagnosticCategory.Error, key: "A_class_can_only_implement_an_identifier_Slashqualified_name_with_optional_type_arguments_2500", message: "A class can only implement an identifier/qualified-name with optional type arguments." },
    A_rest_element_cannot_contain_a_binding_pattern: { code: 2501, category: ts.DiagnosticCategory.Error, key: "A_rest_element_cannot_contain_a_binding_pattern_2501", message: "A rest element cannot contain a binding pattern." },
    _0_is_referenced_directly_or_indirectly_in_its_own_type_annotation: { code: 2502, category: ts.DiagnosticCategory.Error, key: "_0_is_referenced_directly_or_indirectly_in_its_own_type_annotation_2502", message: "'{0}' is referenced directly or indirectly in its own type annotation." },
    Cannot_find_namespace_0: { code: 2503, category: ts.DiagnosticCategory.Error, key: "Cannot_find_namespace_0_2503", message: "Cannot find namespace '{0}'." },
    A_generator_cannot_have_a_void_type_annotation: { code: 2505, category: ts.DiagnosticCategory.Error, key: "A_generator_cannot_have_a_void_type_annotation_2505", message: "A generator cannot have a 'void' type annotation." },
    _0_is_referenced_directly_or_indirectly_in_its_own_base_expression: { code: 2506, category: ts.DiagnosticCategory.Error, key: "_0_is_referenced_directly_or_indirectly_in_its_own_base_expression_2506", message: "'{0}' is referenced directly or indirectly in its own base expression." },
    Type_0_is_not_a_constructor_function_type: { code: 2507, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_a_constructor_function_type_2507", message: "Type '{0}' is not a constructor function type." },
    No_base_constructor_has_the_specified_number_of_type_arguments: { code: 2508, category: ts.DiagnosticCategory.Error, key: "No_base_constructor_has_the_specified_number_of_type_arguments_2508", message: "No base constructor has the specified number of type arguments." },
    Base_constructor_return_type_0_is_not_a_class_or_interface_type: { code: 2509, category: ts.DiagnosticCategory.Error, key: "Base_constructor_return_type_0_is_not_a_class_or_interface_type_2509", message: "Base constructor return type '{0}' is not a class or interface type." },
    Base_constructors_must_all_have_the_same_return_type: { code: 2510, category: ts.DiagnosticCategory.Error, key: "Base_constructors_must_all_have_the_same_return_type_2510", message: "Base constructors must all have the same return type." },
    Cannot_create_an_instance_of_the_abstract_class_0: { code: 2511, category: ts.DiagnosticCategory.Error, key: "Cannot_create_an_instance_of_the_abstract_class_0_2511", message: "Cannot create an instance of the abstract class '{0}'." },
    Overload_signatures_must_all_be_abstract_or_non_abstract: { code: 2512, category: ts.DiagnosticCategory.Error, key: "Overload_signatures_must_all_be_abstract_or_non_abstract_2512", message: "Overload signatures must all be abstract or non-abstract." },
    Abstract_method_0_in_class_1_cannot_be_accessed_via_super_expression: { code: 2513, category: ts.DiagnosticCategory.Error, key: "Abstract_method_0_in_class_1_cannot_be_accessed_via_super_expression_2513", message: "Abstract method '{0}' in class '{1}' cannot be accessed via super expression." },
    Classes_containing_abstract_methods_must_be_marked_abstract: { code: 2514, category: ts.DiagnosticCategory.Error, key: "Classes_containing_abstract_methods_must_be_marked_abstract_2514", message: "Classes containing abstract methods must be marked abstract." },
    Non_abstract_class_0_does_not_implement_inherited_abstract_member_1_from_class_2: { code: 2515, category: ts.DiagnosticCategory.Error, key: "Non_abstract_class_0_does_not_implement_inherited_abstract_member_1_from_class_2_2515", message: "Non-abstract class '{0}' does not implement inherited abstract member '{1}' from class '{2}'." },
    All_declarations_of_an_abstract_method_must_be_consecutive: { code: 2516, category: ts.DiagnosticCategory.Error, key: "All_declarations_of_an_abstract_method_must_be_consecutive_2516", message: "All declarations of an abstract method must be consecutive." },
    Cannot_assign_an_abstract_constructor_type_to_a_non_abstract_constructor_type: { code: 2517, category: ts.DiagnosticCategory.Error, key: "Cannot_assign_an_abstract_constructor_type_to_a_non_abstract_constructor_type_2517", message: "Cannot assign an abstract constructor type to a non-abstract constructor type." },
    A_this_based_type_guard_is_not_compatible_with_a_parameter_based_type_guard: { code: 2518, category: ts.DiagnosticCategory.Error, key: "A_this_based_type_guard_is_not_compatible_with_a_parameter_based_type_guard_2518", message: "A 'this'-based type guard is not compatible with a parameter-based type guard." },
    Duplicate_identifier_0_Compiler_uses_declaration_1_to_support_async_functions: { code: 2520, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_0_Compiler_uses_declaration_1_to_support_async_functions_2520", message: "Duplicate identifier '{0}'. Compiler uses declaration '{1}' to support async functions." },
    Expression_resolves_to_variable_declaration_0_that_compiler_uses_to_support_async_functions: { code: 2521, category: ts.DiagnosticCategory.Error, key: "Expression_resolves_to_variable_declaration_0_that_compiler_uses_to_support_async_functions_2521", message: "Expression resolves to variable declaration '{0}' that compiler uses to support async functions." },
    The_arguments_object_cannot_be_referenced_in_an_async_function_or_method_in_ES3_and_ES5_Consider_using_a_standard_function_or_method: { code: 2522, category: ts.DiagnosticCategory.Error, key: "The_arguments_object_cannot_be_referenced_in_an_async_function_or_method_in_ES3_and_ES5_Consider_usi_2522", message: "The 'arguments' object cannot be referenced in an async function or method in ES3 and ES5. Consider using a standard function or method." },
    yield_expressions_cannot_be_used_in_a_parameter_initializer: { code: 2523, category: ts.DiagnosticCategory.Error, key: "yield_expressions_cannot_be_used_in_a_parameter_initializer_2523", message: "'yield' expressions cannot be used in a parameter initializer." },
    await_expressions_cannot_be_used_in_a_parameter_initializer: { code: 2524, category: ts.DiagnosticCategory.Error, key: "await_expressions_cannot_be_used_in_a_parameter_initializer_2524", message: "'await' expressions cannot be used in a parameter initializer." },
    Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value: { code: 2525, category: ts.DiagnosticCategory.Error, key: "Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value_2525", message: "Initializer provides no value for this binding element and the binding element has no default value." },
    A_this_type_is_available_only_in_a_non_static_member_of_a_class_or_interface: { code: 2526, category: ts.DiagnosticCategory.Error, key: "A_this_type_is_available_only_in_a_non_static_member_of_a_class_or_interface_2526", message: "A 'this' type is available only in a non-static member of a class or interface." },
    The_inferred_type_of_0_references_an_inaccessible_this_type_A_type_annotation_is_necessary: { code: 2527, category: ts.DiagnosticCategory.Error, key: "The_inferred_type_of_0_references_an_inaccessible_this_type_A_type_annotation_is_necessary_2527", message: "The inferred type of '{0}' references an inaccessible 'this' type. A type annotation is necessary." },
    A_module_cannot_have_multiple_default_exports: { code: 2528, category: ts.DiagnosticCategory.Error, key: "A_module_cannot_have_multiple_default_exports_2528", message: "A module cannot have multiple default exports." },
    Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module_containing_async_functions: { code: 2529, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module_containing_async_func_2529", message: "Duplicate identifier '{0}'. Compiler reserves name '{1}' in top level scope of a module containing async functions." },
    Property_0_is_incompatible_with_index_signature: { code: 2530, category: ts.DiagnosticCategory.Error, key: "Property_0_is_incompatible_with_index_signature_2530", message: "Property '{0}' is incompatible with index signature." },
    Object_is_possibly_null: { code: 2531, category: ts.DiagnosticCategory.Error, key: "Object_is_possibly_null_2531", message: "Object is possibly 'null'." },
    Object_is_possibly_undefined: { code: 2532, category: ts.DiagnosticCategory.Error, key: "Object_is_possibly_undefined_2532", message: "Object is possibly 'undefined'." },
    Object_is_possibly_null_or_undefined: { code: 2533, category: ts.DiagnosticCategory.Error, key: "Object_is_possibly_null_or_undefined_2533", message: "Object is possibly 'null' or 'undefined'." },
    A_function_returning_never_cannot_have_a_reachable_end_point: { code: 2534, category: ts.DiagnosticCategory.Error, key: "A_function_returning_never_cannot_have_a_reachable_end_point_2534", message: "A function returning 'never' cannot have a reachable end point." },
    Enum_type_0_has_members_with_initializers_that_are_not_literals: { code: 2535, category: ts.DiagnosticCategory.Error, key: "Enum_type_0_has_members_with_initializers_that_are_not_literals_2535", message: "Enum type '{0}' has members with initializers that are not literals." },
    Type_0_cannot_be_used_to_index_type_1: { code: 2536, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_to_index_type_1_2536", message: "Type '{0}' cannot be used to index type '{1}'." },
    Type_0_has_no_matching_index_signature_for_type_1: { code: 2537, category: ts.DiagnosticCategory.Error, key: "Type_0_has_no_matching_index_signature_for_type_1_2537", message: "Type '{0}' has no matching index signature for type '{1}'." },
    Type_0_cannot_be_used_as_an_index_type: { code: 2538, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_as_an_index_type_2538", message: "Type '{0}' cannot be used as an index type." },
    Cannot_assign_to_0_because_it_is_not_a_variable: { code: 2539, category: ts.DiagnosticCategory.Error, key: "Cannot_assign_to_0_because_it_is_not_a_variable_2539", message: "Cannot assign to '{0}' because it is not a variable." },
    Cannot_assign_to_0_because_it_is_a_constant_or_a_read_only_property: { code: 2540, category: ts.DiagnosticCategory.Error, key: "Cannot_assign_to_0_because_it_is_a_constant_or_a_read_only_property_2540", message: "Cannot assign to '{0}' because it is a constant or a read-only property." },
    The_target_of_an_assignment_must_be_a_variable_or_a_property_access: { code: 2541, category: ts.DiagnosticCategory.Error, key: "The_target_of_an_assignment_must_be_a_variable_or_a_property_access_2541", message: "The target of an assignment must be a variable or a property access." },
    Index_signature_in_type_0_only_permits_reading: { code: 2542, category: ts.DiagnosticCategory.Error, key: "Index_signature_in_type_0_only_permits_reading_2542", message: "Index signature in type '{0}' only permits reading." },
    JSX_element_attributes_type_0_may_not_be_a_union_type: { code: 2600, category: ts.DiagnosticCategory.Error, key: "JSX_element_attributes_type_0_may_not_be_a_union_type_2600", message: "JSX element attributes type '{0}' may not be a union type." },
    The_return_type_of_a_JSX_element_constructor_must_return_an_object_type: { code: 2601, category: ts.DiagnosticCategory.Error, key: "The_return_type_of_a_JSX_element_constructor_must_return_an_object_type_2601", message: "The return type of a JSX element constructor must return an object type." },
    JSX_element_implicitly_has_type_any_because_the_global_type_JSX_Element_does_not_exist: { code: 2602, category: ts.DiagnosticCategory.Error, key: "JSX_element_implicitly_has_type_any_because_the_global_type_JSX_Element_does_not_exist_2602", message: "JSX element implicitly has type 'any' because the global type 'JSX.Element' does not exist." },
    Property_0_in_type_1_is_not_assignable_to_type_2: { code: 2603, category: ts.DiagnosticCategory.Error, key: "Property_0_in_type_1_is_not_assignable_to_type_2_2603", message: "Property '{0}' in type '{1}' is not assignable to type '{2}'" },
    JSX_element_type_0_does_not_have_any_construct_or_call_signatures: { code: 2604, category: ts.DiagnosticCategory.Error, key: "JSX_element_type_0_does_not_have_any_construct_or_call_signatures_2604", message: "JSX element type '{0}' does not have any construct or call signatures." },
    JSX_element_type_0_is_not_a_constructor_function_for_JSX_elements: { code: 2605, category: ts.DiagnosticCategory.Error, key: "JSX_element_type_0_is_not_a_constructor_function_for_JSX_elements_2605", message: "JSX element type '{0}' is not a constructor function for JSX elements." },
    Property_0_of_JSX_spread_attribute_is_not_assignable_to_target_property: { code: 2606, category: ts.DiagnosticCategory.Error, key: "Property_0_of_JSX_spread_attribute_is_not_assignable_to_target_property_2606", message: "Property '{0}' of JSX spread attribute is not assignable to target property." },
    JSX_element_class_does_not_support_attributes_because_it_does_not_have_a_0_property: { code: 2607, category: ts.DiagnosticCategory.Error, key: "JSX_element_class_does_not_support_attributes_because_it_does_not_have_a_0_property_2607", message: "JSX element class does not support attributes because it does not have a '{0}' property" },
    The_global_type_JSX_0_may_not_have_more_than_one_property: { code: 2608, category: ts.DiagnosticCategory.Error, key: "The_global_type_JSX_0_may_not_have_more_than_one_property_2608", message: "The global type 'JSX.{0}' may not have more than one property" },
    Cannot_emit_namespaced_JSX_elements_in_React: { code: 2650, category: ts.DiagnosticCategory.Error, key: "Cannot_emit_namespaced_JSX_elements_in_React_2650", message: "Cannot emit namespaced JSX elements in React" },
    A_member_initializer_in_a_enum_declaration_cannot_reference_members_declared_after_it_including_members_defined_in_other_enums: { code: 2651, category: ts.DiagnosticCategory.Error, key: "A_member_initializer_in_a_enum_declaration_cannot_reference_members_declared_after_it_including_memb_2651", message: "A member initializer in a enum declaration cannot reference members declared after it, including members defined in other enums." },
    Merged_declaration_0_cannot_include_a_default_export_declaration_Consider_adding_a_separate_export_default_0_declaration_instead: { code: 2652, category: ts.DiagnosticCategory.Error, key: "Merged_declaration_0_cannot_include_a_default_export_declaration_Consider_adding_a_separate_export_d_2652", message: "Merged declaration '{0}' cannot include a default export declaration. Consider adding a separate 'export default {0}' declaration instead." },
    Non_abstract_class_expression_does_not_implement_inherited_abstract_member_0_from_class_1: { code: 2653, category: ts.DiagnosticCategory.Error, key: "Non_abstract_class_expression_does_not_implement_inherited_abstract_member_0_from_class_1_2653", message: "Non-abstract class expression does not implement inherited abstract member '{0}' from class '{1}'." },
    Exported_external_package_typings_file_cannot_contain_tripleslash_references_Please_contact_the_package_author_to_update_the_package_definition: { code: 2654, category: ts.DiagnosticCategory.Error, key: "Exported_external_package_typings_file_cannot_contain_tripleslash_references_Please_contact_the_pack_2654", message: "Exported external package typings file cannot contain tripleslash references. Please contact the package author to update the package definition." },
    Exported_external_package_typings_file_0_is_not_a_module_Please_contact_the_package_author_to_update_the_package_definition: { code: 2656, category: ts.DiagnosticCategory.Error, key: "Exported_external_package_typings_file_0_is_not_a_module_Please_contact_the_package_author_to_update_2656", message: "Exported external package typings file '{0}' is not a module. Please contact the package author to update the package definition." },
    JSX_expressions_must_have_one_parent_element: { code: 2657, category: ts.DiagnosticCategory.Error, key: "JSX_expressions_must_have_one_parent_element_2657", message: "JSX expressions must have one parent element" },
    Type_0_provides_no_match_for_the_signature_1: { code: 2658, category: ts.DiagnosticCategory.Error, key: "Type_0_provides_no_match_for_the_signature_1_2658", message: "Type '{0}' provides no match for the signature '{1}'" },
    super_is_only_allowed_in_members_of_object_literal_expressions_when_option_target_is_ES2015_or_higher: { code: 2659, category: ts.DiagnosticCategory.Error, key: "super_is_only_allowed_in_members_of_object_literal_expressions_when_option_target_is_ES2015_or_highe_2659", message: "'super' is only allowed in members of object literal expressions when option 'target' is 'ES2015' or higher." },
    super_can_only_be_referenced_in_members_of_derived_classes_or_object_literal_expressions: { code: 2660, category: ts.DiagnosticCategory.Error, key: "super_can_only_be_referenced_in_members_of_derived_classes_or_object_literal_expressions_2660", message: "'super' can only be referenced in members of derived classes or object literal expressions." },
    Cannot_export_0_Only_local_declarations_can_be_exported_from_a_module: { code: 2661, category: ts.DiagnosticCategory.Error, key: "Cannot_export_0_Only_local_declarations_can_be_exported_from_a_module_2661", message: "Cannot export '{0}'. Only local declarations can be exported from a module." },
    Cannot_find_name_0_Did_you_mean_the_static_member_1_0: { code: 2662, category: ts.DiagnosticCategory.Error, key: "Cannot_find_name_0_Did_you_mean_the_static_member_1_0_2662", message: "Cannot find name '{0}'. Did you mean the static member '{1}.{0}'?" },
    Cannot_find_name_0_Did_you_mean_the_instance_member_this_0: { code: 2663, category: ts.DiagnosticCategory.Error, key: "Cannot_find_name_0_Did_you_mean_the_instance_member_this_0_2663", message: "Cannot find name '{0}'. Did you mean the instance member 'this.{0}'?" },
    Invalid_module_name_in_augmentation_module_0_cannot_be_found: { code: 2664, category: ts.DiagnosticCategory.Error, key: "Invalid_module_name_in_augmentation_module_0_cannot_be_found_2664", message: "Invalid module name in augmentation, module '{0}' cannot be found." },
    Invalid_module_name_in_augmentation_Module_0_resolves_to_an_untyped_module_at_1_which_cannot_be_augmented: { code: 2665, category: ts.DiagnosticCategory.Error, key: "Invalid_module_name_in_augmentation_Module_0_resolves_to_an_untyped_module_at_1_which_cannot_be_augm_2665", message: "Invalid module name in augmentation. Module '{0}' resolves to an untyped module at '{1}', which cannot be augmented." },
    Exports_and_export_assignments_are_not_permitted_in_module_augmentations: { code: 2666, category: ts.DiagnosticCategory.Error, key: "Exports_and_export_assignments_are_not_permitted_in_module_augmentations_2666", message: "Exports and export assignments are not permitted in module augmentations." },
    Imports_are_not_permitted_in_module_augmentations_Consider_moving_them_to_the_enclosing_external_module: { code: 2667, category: ts.DiagnosticCategory.Error, key: "Imports_are_not_permitted_in_module_augmentations_Consider_moving_them_to_the_enclosing_external_mod_2667", message: "Imports are not permitted in module augmentations. Consider moving them to the enclosing external module." },
    export_modifier_cannot_be_applied_to_ambient_modules_and_module_augmentations_since_they_are_always_visible: { code: 2668, category: ts.DiagnosticCategory.Error, key: "export_modifier_cannot_be_applied_to_ambient_modules_and_module_augmentations_since_they_are_always__2668", message: "'export' modifier cannot be applied to ambient modules and module augmentations since they are always visible." },
    Augmentations_for_the_global_scope_can_only_be_directly_nested_in_external_modules_or_ambient_module_declarations: { code: 2669, category: ts.DiagnosticCategory.Error, key: "Augmentations_for_the_global_scope_can_only_be_directly_nested_in_external_modules_or_ambient_module_2669", message: "Augmentations for the global scope can only be directly nested in external modules or ambient module declarations." },
    Augmentations_for_the_global_scope_should_have_declare_modifier_unless_they_appear_in_already_ambient_context: { code: 2670, category: ts.DiagnosticCategory.Error, key: "Augmentations_for_the_global_scope_should_have_declare_modifier_unless_they_appear_in_already_ambien_2670", message: "Augmentations for the global scope should have 'declare' modifier unless they appear in already ambient context." },
    Cannot_augment_module_0_because_it_resolves_to_a_non_module_entity: { code: 2671, category: ts.DiagnosticCategory.Error, key: "Cannot_augment_module_0_because_it_resolves_to_a_non_module_entity_2671", message: "Cannot augment module '{0}' because it resolves to a non-module entity." },
    Cannot_assign_a_0_constructor_type_to_a_1_constructor_type: { code: 2672, category: ts.DiagnosticCategory.Error, key: "Cannot_assign_a_0_constructor_type_to_a_1_constructor_type_2672", message: "Cannot assign a '{0}' constructor type to a '{1}' constructor type." },
    Constructor_of_class_0_is_private_and_only_accessible_within_the_class_declaration: { code: 2673, category: ts.DiagnosticCategory.Error, key: "Constructor_of_class_0_is_private_and_only_accessible_within_the_class_declaration_2673", message: "Constructor of class '{0}' is private and only accessible within the class declaration." },
    Constructor_of_class_0_is_protected_and_only_accessible_within_the_class_declaration: { code: 2674, category: ts.DiagnosticCategory.Error, key: "Constructor_of_class_0_is_protected_and_only_accessible_within_the_class_declaration_2674", message: "Constructor of class '{0}' is protected and only accessible within the class declaration." },
    Cannot_extend_a_class_0_Class_constructor_is_marked_as_private: { code: 2675, category: ts.DiagnosticCategory.Error, key: "Cannot_extend_a_class_0_Class_constructor_is_marked_as_private_2675", message: "Cannot extend a class '{0}'. Class constructor is marked as private." },
    Accessors_must_both_be_abstract_or_non_abstract: { code: 2676, category: ts.DiagnosticCategory.Error, key: "Accessors_must_both_be_abstract_or_non_abstract_2676", message: "Accessors must both be abstract or non-abstract." },
    A_type_predicate_s_type_must_be_assignable_to_its_parameter_s_type: { code: 2677, category: ts.DiagnosticCategory.Error, key: "A_type_predicate_s_type_must_be_assignable_to_its_parameter_s_type_2677", message: "A type predicate's type must be assignable to its parameter's type." },
    Type_0_is_not_comparable_to_type_1: { code: 2678, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_comparable_to_type_1_2678", message: "Type '{0}' is not comparable to type '{1}'." },
    A_function_that_is_called_with_the_new_keyword_cannot_have_a_this_type_that_is_void: { code: 2679, category: ts.DiagnosticCategory.Error, key: "A_function_that_is_called_with_the_new_keyword_cannot_have_a_this_type_that_is_void_2679", message: "A function that is called with the 'new' keyword cannot have a 'this' type that is 'void'." },
    A_this_parameter_must_be_the_first_parameter: { code: 2680, category: ts.DiagnosticCategory.Error, key: "A_this_parameter_must_be_the_first_parameter_2680", message: "A 'this' parameter must be the first parameter." },
    A_constructor_cannot_have_a_this_parameter: { code: 2681, category: ts.DiagnosticCategory.Error, key: "A_constructor_cannot_have_a_this_parameter_2681", message: "A constructor cannot have a 'this' parameter." },
    get_and_set_accessor_must_have_the_same_this_type: { code: 2682, category: ts.DiagnosticCategory.Error, key: "get_and_set_accessor_must_have_the_same_this_type_2682", message: "'get' and 'set' accessor must have the same 'this' type." },
    this_implicitly_has_type_any_because_it_does_not_have_a_type_annotation: { code: 2683, category: ts.DiagnosticCategory.Error, key: "this_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_2683", message: "'this' implicitly has type 'any' because it does not have a type annotation." },
    The_this_context_of_type_0_is_not_assignable_to_method_s_this_of_type_1: { code: 2684, category: ts.DiagnosticCategory.Error, key: "The_this_context_of_type_0_is_not_assignable_to_method_s_this_of_type_1_2684", message: "The 'this' context of type '{0}' is not assignable to method's 'this' of type '{1}'." },
    The_this_types_of_each_signature_are_incompatible: { code: 2685, category: ts.DiagnosticCategory.Error, key: "The_this_types_of_each_signature_are_incompatible_2685", message: "The 'this' types of each signature are incompatible." },
    _0_refers_to_a_UMD_global_but_the_current_file_is_a_module_Consider_adding_an_import_instead: { code: 2686, category: ts.DiagnosticCategory.Error, key: "_0_refers_to_a_UMD_global_but_the_current_file_is_a_module_Consider_adding_an_import_instead_2686", message: "'{0}' refers to a UMD global, but the current file is a module. Consider adding an import instead." },
    All_declarations_of_0_must_have_identical_modifiers: { code: 2687, category: ts.DiagnosticCategory.Error, key: "All_declarations_of_0_must_have_identical_modifiers_2687", message: "All declarations of '{0}' must have identical modifiers." },
    Cannot_find_type_definition_file_for_0: { code: 2688, category: ts.DiagnosticCategory.Error, key: "Cannot_find_type_definition_file_for_0_2688", message: "Cannot find type definition file for '{0}'." },
    Cannot_extend_an_interface_0_Did_you_mean_implements: { code: 2689, category: ts.DiagnosticCategory.Error, key: "Cannot_extend_an_interface_0_Did_you_mean_implements_2689", message: "Cannot extend an interface '{0}'. Did you mean 'implements'?" },
    A_class_must_be_declared_after_its_base_class: { code: 2690, category: ts.DiagnosticCategory.Error, key: "A_class_must_be_declared_after_its_base_class_2690", message: "A class must be declared after its base class." },
    An_import_path_cannot_end_with_a_0_extension_Consider_importing_1_instead: { code: 2691, category: ts.DiagnosticCategory.Error, key: "An_import_path_cannot_end_with_a_0_extension_Consider_importing_1_instead_2691", message: "An import path cannot end with a '{0}' extension. Consider importing '{1}' instead." },
    _0_is_a_primitive_but_1_is_a_wrapper_object_Prefer_using_0_when_possible: { code: 2692, category: ts.DiagnosticCategory.Error, key: "_0_is_a_primitive_but_1_is_a_wrapper_object_Prefer_using_0_when_possible_2692", message: "'{0}' is a primitive, but '{1}' is a wrapper object. Prefer using '{0}' when possible." },
    _0_only_refers_to_a_type_but_is_being_used_as_a_value_here: { code: 2693, category: ts.DiagnosticCategory.Error, key: "_0_only_refers_to_a_type_but_is_being_used_as_a_value_here_2693", message: "'{0}' only refers to a type, but is being used as a value here." },
    Namespace_0_has_no_exported_member_1: { code: 2694, category: ts.DiagnosticCategory.Error, key: "Namespace_0_has_no_exported_member_1_2694", message: "Namespace '{0}' has no exported member '{1}'." },
    Left_side_of_comma_operator_is_unused_and_has_no_side_effects: { code: 2695, category: ts.DiagnosticCategory.Error, key: "Left_side_of_comma_operator_is_unused_and_has_no_side_effects_2695", message: "Left side of comma operator is unused and has no side effects." },
    The_Object_type_is_assignable_to_very_few_other_types_Did_you_mean_to_use_the_any_type_instead: { code: 2696, category: ts.DiagnosticCategory.Error, key: "The_Object_type_is_assignable_to_very_few_other_types_Did_you_mean_to_use_the_any_type_instead_2696", message: "The 'Object' type is assignable to very few other types. Did you mean to use the 'any' type instead?" },
    An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES2015_in_your_lib_option: { code: 2697, category: ts.DiagnosticCategory.Error, key: "An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_in_2697", message: "An async function or method must return a 'Promise'. Make sure you have a declaration for 'Promise' or include 'ES2015' in your `--lib` option." },
    Spread_types_may_only_be_created_from_object_types: { code: 2698, category: ts.DiagnosticCategory.Error, key: "Spread_types_may_only_be_created_from_object_types_2698", message: "Spread types may only be created from object types." },
    Rest_types_may_only_be_created_from_object_types: { code: 2700, category: ts.DiagnosticCategory.Error, key: "Rest_types_may_only_be_created_from_object_types_2700", message: "Rest types may only be created from object types." },
    The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access: { code: 2701, category: ts.DiagnosticCategory.Error, key: "The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access_2701", message: "The target of an object rest assignment must be a variable or a property access." },
    _0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here: { code: 2702, category: ts.DiagnosticCategory.Error, key: "_0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here_2702", message: "'{0}' only refers to a type, but is being used as a namespace here." },
    Import_declaration_0_is_using_private_name_1: { code: 4000, category: ts.DiagnosticCategory.Error, key: "Import_declaration_0_is_using_private_name_1_4000", message: "Import declaration '{0}' is using private name '{1}'." },
    Type_parameter_0_of_exported_class_has_or_is_using_private_name_1: { code: 4002, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_class_has_or_is_using_private_name_1_4002", message: "Type parameter '{0}' of exported class has or is using private name '{1}'." },
    Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1: { code: 4004, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1_4004", message: "Type parameter '{0}' of exported interface has or is using private name '{1}'." },
    Type_parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1: { code: 4006, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1_4006", message: "Type parameter '{0}' of constructor signature from exported interface has or is using private name '{1}'." },
    Type_parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1: { code: 4008, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1_4008", message: "Type parameter '{0}' of call signature from exported interface has or is using private name '{1}'." },
    Type_parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1: { code: 4010, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1_4010", message: "Type parameter '{0}' of public static method from exported class has or is using private name '{1}'." },
    Type_parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1: { code: 4012, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1_4012", message: "Type parameter '{0}' of public method from exported class has or is using private name '{1}'." },
    Type_parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1: { code: 4014, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1_4014", message: "Type parameter '{0}' of method from exported interface has or is using private name '{1}'." },
    Type_parameter_0_of_exported_function_has_or_is_using_private_name_1: { code: 4016, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_function_has_or_is_using_private_name_1_4016", message: "Type parameter '{0}' of exported function has or is using private name '{1}'." },
    Implements_clause_of_exported_class_0_has_or_is_using_private_name_1: { code: 4019, category: ts.DiagnosticCategory.Error, key: "Implements_clause_of_exported_class_0_has_or_is_using_private_name_1_4019", message: "Implements clause of exported class '{0}' has or is using private name '{1}'." },
    Extends_clause_of_exported_class_0_has_or_is_using_private_name_1: { code: 4020, category: ts.DiagnosticCategory.Error, key: "Extends_clause_of_exported_class_0_has_or_is_using_private_name_1_4020", message: "Extends clause of exported class '{0}' has or is using private name '{1}'." },
    Extends_clause_of_exported_interface_0_has_or_is_using_private_name_1: { code: 4022, category: ts.DiagnosticCategory.Error, key: "Extends_clause_of_exported_interface_0_has_or_is_using_private_name_1_4022", message: "Extends clause of exported interface '{0}' has or is using private name '{1}'." },
    Exported_variable_0_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4023, category: ts.DiagnosticCategory.Error, key: "Exported_variable_0_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named_4023", message: "Exported variable '{0}' has or is using name '{1}' from external module {2} but cannot be named." },
    Exported_variable_0_has_or_is_using_name_1_from_private_module_2: { code: 4024, category: ts.DiagnosticCategory.Error, key: "Exported_variable_0_has_or_is_using_name_1_from_private_module_2_4024", message: "Exported variable '{0}' has or is using name '{1}' from private module '{2}'." },
    Exported_variable_0_has_or_is_using_private_name_1: { code: 4025, category: ts.DiagnosticCategory.Error, key: "Exported_variable_0_has_or_is_using_private_name_1_4025", message: "Exported variable '{0}' has or is using private name '{1}'." },
    Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4026, category: ts.DiagnosticCategory.Error, key: "Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot__4026", message: "Public static property '{0}' of exported class has or is using name '{1}' from external module {2} but cannot be named." },
    Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4027, category: ts.DiagnosticCategory.Error, key: "Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2_4027", message: "Public static property '{0}' of exported class has or is using name '{1}' from private module '{2}'." },
    Public_static_property_0_of_exported_class_has_or_is_using_private_name_1: { code: 4028, category: ts.DiagnosticCategory.Error, key: "Public_static_property_0_of_exported_class_has_or_is_using_private_name_1_4028", message: "Public static property '{0}' of exported class has or is using private name '{1}'." },
    Public_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4029, category: ts.DiagnosticCategory.Error, key: "Public_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_name_4029", message: "Public property '{0}' of exported class has or is using name '{1}' from external module {2} but cannot be named." },
    Public_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4030, category: ts.DiagnosticCategory.Error, key: "Public_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2_4030", message: "Public property '{0}' of exported class has or is using name '{1}' from private module '{2}'." },
    Public_property_0_of_exported_class_has_or_is_using_private_name_1: { code: 4031, category: ts.DiagnosticCategory.Error, key: "Public_property_0_of_exported_class_has_or_is_using_private_name_1_4031", message: "Public property '{0}' of exported class has or is using private name '{1}'." },
    Property_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2: { code: 4032, category: ts.DiagnosticCategory.Error, key: "Property_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2_4032", message: "Property '{0}' of exported interface has or is using name '{1}' from private module '{2}'." },
    Property_0_of_exported_interface_has_or_is_using_private_name_1: { code: 4033, category: ts.DiagnosticCategory.Error, key: "Property_0_of_exported_interface_has_or_is_using_private_name_1_4033", message: "Property '{0}' of exported interface has or is using private name '{1}'." },
    Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4034, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_name_1_from_private_4034", message: "Parameter '{0}' of public static property setter from exported class has or is using name '{1}' from private module '{2}'." },
    Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_private_name_1: { code: 4035, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_private_name_1_4035", message: "Parameter '{0}' of public static property setter from exported class has or is using private name '{1}'." },
    Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4036, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_name_1_from_private_module_4036", message: "Parameter '{0}' of public property setter from exported class has or is using name '{1}' from private module '{2}'." },
    Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_private_name_1: { code: 4037, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_private_name_1_4037", message: "Parameter '{0}' of public property setter from exported class has or is using private name '{1}'." },
    Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4038, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_externa_4038", message: "Return type of public static property getter from exported class has or is using name '{0}' from external module {1} but cannot be named." },
    Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_private_module_1: { code: 4039, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_private_4039", message: "Return type of public static property getter from exported class has or is using name '{0}' from private module '{1}'." },
    Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_private_name_0: { code: 4040, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_private_name_0_4040", message: "Return type of public static property getter from exported class has or is using private name '{0}'." },
    Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4041, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_external_modul_4041", message: "Return type of public property getter from exported class has or is using name '{0}' from external module {1} but cannot be named." },
    Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_private_module_1: { code: 4042, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_private_module_4042", message: "Return type of public property getter from exported class has or is using name '{0}' from private module '{1}'." },
    Return_type_of_public_property_getter_from_exported_class_has_or_is_using_private_name_0: { code: 4043, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_property_getter_from_exported_class_has_or_is_using_private_name_0_4043", message: "Return type of public property getter from exported class has or is using private name '{0}'." },
    Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1: { code: 4044, category: ts.DiagnosticCategory.Error, key: "Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_name_0_from_private_mod_4044", message: "Return type of constructor signature from exported interface has or is using name '{0}' from private module '{1}'." },
    Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_0: { code: 4045, category: ts.DiagnosticCategory.Error, key: "Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_0_4045", message: "Return type of constructor signature from exported interface has or is using private name '{0}'." },
    Return_type_of_call_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1: { code: 4046, category: ts.DiagnosticCategory.Error, key: "Return_type_of_call_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1_4046", message: "Return type of call signature from exported interface has or is using name '{0}' from private module '{1}'." },
    Return_type_of_call_signature_from_exported_interface_has_or_is_using_private_name_0: { code: 4047, category: ts.DiagnosticCategory.Error, key: "Return_type_of_call_signature_from_exported_interface_has_or_is_using_private_name_0_4047", message: "Return type of call signature from exported interface has or is using private name '{0}'." },
    Return_type_of_index_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1: { code: 4048, category: ts.DiagnosticCategory.Error, key: "Return_type_of_index_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1_4048", message: "Return type of index signature from exported interface has or is using name '{0}' from private module '{1}'." },
    Return_type_of_index_signature_from_exported_interface_has_or_is_using_private_name_0: { code: 4049, category: ts.DiagnosticCategory.Error, key: "Return_type_of_index_signature_from_exported_interface_has_or_is_using_private_name_0_4049", message: "Return type of index signature from exported interface has or is using private name '{0}'." },
    Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4050, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_external_module__4050", message: "Return type of public static method from exported class has or is using name '{0}' from external module {1} but cannot be named." },
    Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_private_module_1: { code: 4051, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_private_module_1_4051", message: "Return type of public static method from exported class has or is using name '{0}' from private module '{1}'." },
    Return_type_of_public_static_method_from_exported_class_has_or_is_using_private_name_0: { code: 4052, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_static_method_from_exported_class_has_or_is_using_private_name_0_4052", message: "Return type of public static method from exported class has or is using private name '{0}'." },
    Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4053, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_c_4053", message: "Return type of public method from exported class has or is using name '{0}' from external module {1} but cannot be named." },
    Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_private_module_1: { code: 4054, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_private_module_1_4054", message: "Return type of public method from exported class has or is using name '{0}' from private module '{1}'." },
    Return_type_of_public_method_from_exported_class_has_or_is_using_private_name_0: { code: 4055, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_method_from_exported_class_has_or_is_using_private_name_0_4055", message: "Return type of public method from exported class has or is using private name '{0}'." },
    Return_type_of_method_from_exported_interface_has_or_is_using_name_0_from_private_module_1: { code: 4056, category: ts.DiagnosticCategory.Error, key: "Return_type_of_method_from_exported_interface_has_or_is_using_name_0_from_private_module_1_4056", message: "Return type of method from exported interface has or is using name '{0}' from private module '{1}'." },
    Return_type_of_method_from_exported_interface_has_or_is_using_private_name_0: { code: 4057, category: ts.DiagnosticCategory.Error, key: "Return_type_of_method_from_exported_interface_has_or_is_using_private_name_0_4057", message: "Return type of method from exported interface has or is using private name '{0}'." },
    Return_type_of_exported_function_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4058, category: ts.DiagnosticCategory.Error, key: "Return_type_of_exported_function_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named_4058", message: "Return type of exported function has or is using name '{0}' from external module {1} but cannot be named." },
    Return_type_of_exported_function_has_or_is_using_name_0_from_private_module_1: { code: 4059, category: ts.DiagnosticCategory.Error, key: "Return_type_of_exported_function_has_or_is_using_name_0_from_private_module_1_4059", message: "Return type of exported function has or is using name '{0}' from private module '{1}'." },
    Return_type_of_exported_function_has_or_is_using_private_name_0: { code: 4060, category: ts.DiagnosticCategory.Error, key: "Return_type_of_exported_function_has_or_is_using_private_name_0_4060", message: "Return type of exported function has or is using private name '{0}'." },
    Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4061, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_can_4061", message: "Parameter '{0}' of constructor from exported class has or is using name '{1}' from external module {2} but cannot be named." },
    Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4062, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_private_module_2_4062", message: "Parameter '{0}' of constructor from exported class has or is using name '{1}' from private module '{2}'." },
    Parameter_0_of_constructor_from_exported_class_has_or_is_using_private_name_1: { code: 4063, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_constructor_from_exported_class_has_or_is_using_private_name_1_4063", message: "Parameter '{0}' of constructor from exported class has or is using private name '{1}'." },
    Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2: { code: 4064, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_name_1_from_private_mod_4064", message: "Parameter '{0}' of constructor signature from exported interface has or is using name '{1}' from private module '{2}'." },
    Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1: { code: 4065, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1_4065", message: "Parameter '{0}' of constructor signature from exported interface has or is using private name '{1}'." },
    Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2: { code: 4066, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2_4066", message: "Parameter '{0}' of call signature from exported interface has or is using name '{1}' from private module '{2}'." },
    Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1: { code: 4067, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1_4067", message: "Parameter '{0}' of call signature from exported interface has or is using private name '{1}'." },
    Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4068, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_external_module__4068", message: "Parameter '{0}' of public static method from exported class has or is using name '{1}' from external module {2} but cannot be named." },
    Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4069, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_private_module_2_4069", message: "Parameter '{0}' of public static method from exported class has or is using name '{1}' from private module '{2}'." },
    Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1: { code: 4070, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1_4070", message: "Parameter '{0}' of public static method from exported class has or is using private name '{1}'." },
    Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4071, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_c_4071", message: "Parameter '{0}' of public method from exported class has or is using name '{1}' from external module {2} but cannot be named." },
    Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4072, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_private_module_2_4072", message: "Parameter '{0}' of public method from exported class has or is using name '{1}' from private module '{2}'." },
    Parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1: { code: 4073, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1_4073", message: "Parameter '{0}' of public method from exported class has or is using private name '{1}'." },
    Parameter_0_of_method_from_exported_interface_has_or_is_using_name_1_from_private_module_2: { code: 4074, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_method_from_exported_interface_has_or_is_using_name_1_from_private_module_2_4074", message: "Parameter '{0}' of method from exported interface has or is using name '{1}' from private module '{2}'." },
    Parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1: { code: 4075, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1_4075", message: "Parameter '{0}' of method from exported interface has or is using private name '{1}'." },
    Parameter_0_of_exported_function_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4076, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_exported_function_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named_4076", message: "Parameter '{0}' of exported function has or is using name '{1}' from external module {2} but cannot be named." },
    Parameter_0_of_exported_function_has_or_is_using_name_1_from_private_module_2: { code: 4077, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_exported_function_has_or_is_using_name_1_from_private_module_2_4077", message: "Parameter '{0}' of exported function has or is using name '{1}' from private module '{2}'." },
    Parameter_0_of_exported_function_has_or_is_using_private_name_1: { code: 4078, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_exported_function_has_or_is_using_private_name_1_4078", message: "Parameter '{0}' of exported function has or is using private name '{1}'." },
    Exported_type_alias_0_has_or_is_using_private_name_1: { code: 4081, category: ts.DiagnosticCategory.Error, key: "Exported_type_alias_0_has_or_is_using_private_name_1_4081", message: "Exported type alias '{0}' has or is using private name '{1}'." },
    Default_export_of_the_module_has_or_is_using_private_name_0: { code: 4082, category: ts.DiagnosticCategory.Error, key: "Default_export_of_the_module_has_or_is_using_private_name_0_4082", message: "Default export of the module has or is using private name '{0}'." },
    Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1: { code: 4083, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1_4083", message: "Type parameter '{0}' of exported type alias has or is using private name '{1}'." },
    Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_library_to_resolve_the_conflict: { code: 4090, category: ts.DiagnosticCategory.Message, key: "Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_librar_4090", message: "Conflicting definitions for '{0}' found at '{1}' and '{2}'. Consider installing a specific version of this library to resolve the conflict." },
    Parameter_0_of_index_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2: { code: 4091, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_index_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2_4091", message: "Parameter '{0}' of index signature from exported interface has or is using name '{1}' from private module '{2}'." },
    Parameter_0_of_index_signature_from_exported_interface_has_or_is_using_private_name_1: { code: 4092, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_index_signature_from_exported_interface_has_or_is_using_private_name_1_4092", message: "Parameter '{0}' of index signature from exported interface has or is using private name '{1}'." },
    The_current_host_does_not_support_the_0_option: { code: 5001, category: ts.DiagnosticCategory.Error, key: "The_current_host_does_not_support_the_0_option_5001", message: "The current host does not support the '{0}' option." },
    Cannot_find_the_common_subdirectory_path_for_the_input_files: { code: 5009, category: ts.DiagnosticCategory.Error, key: "Cannot_find_the_common_subdirectory_path_for_the_input_files_5009", message: "Cannot find the common subdirectory path for the input files." },
    File_specification_cannot_end_in_a_recursive_directory_wildcard_Asterisk_Asterisk_Colon_0: { code: 5010, category: ts.DiagnosticCategory.Error, key: "File_specification_cannot_end_in_a_recursive_directory_wildcard_Asterisk_Asterisk_Colon_0_5010", message: "File specification cannot end in a recursive directory wildcard ('**'): '{0}'." },
    File_specification_cannot_contain_multiple_recursive_directory_wildcards_Asterisk_Asterisk_Colon_0: { code: 5011, category: ts.DiagnosticCategory.Error, key: "File_specification_cannot_contain_multiple_recursive_directory_wildcards_Asterisk_Asterisk_Colon_0_5011", message: "File specification cannot contain multiple recursive directory wildcards ('**'): '{0}'." },
    Cannot_read_file_0_Colon_1: { code: 5012, category: ts.DiagnosticCategory.Error, key: "Cannot_read_file_0_Colon_1_5012", message: "Cannot read file '{0}': {1}" },
    Unsupported_file_encoding: { code: 5013, category: ts.DiagnosticCategory.Error, key: "Unsupported_file_encoding_5013", message: "Unsupported file encoding." },
    Failed_to_parse_file_0_Colon_1: { code: 5014, category: ts.DiagnosticCategory.Error, key: "Failed_to_parse_file_0_Colon_1_5014", message: "Failed to parse file '{0}': {1}." },
    Unknown_compiler_option_0: { code: 5023, category: ts.DiagnosticCategory.Error, key: "Unknown_compiler_option_0_5023", message: "Unknown compiler option '{0}'." },
    Compiler_option_0_requires_a_value_of_type_1: { code: 5024, category: ts.DiagnosticCategory.Error, key: "Compiler_option_0_requires_a_value_of_type_1_5024", message: "Compiler option '{0}' requires a value of type {1}." },
    Could_not_write_file_0_Colon_1: { code: 5033, category: ts.DiagnosticCategory.Error, key: "Could_not_write_file_0_Colon_1_5033", message: "Could not write file '{0}': {1}" },
    Option_project_cannot_be_mixed_with_source_files_on_a_command_line: { code: 5042, category: ts.DiagnosticCategory.Error, key: "Option_project_cannot_be_mixed_with_source_files_on_a_command_line_5042", message: "Option 'project' cannot be mixed with source files on a command line." },
    Option_isolatedModules_can_only_be_used_when_either_option_module_is_provided_or_option_target_is_ES2015_or_higher: { code: 5047, category: ts.DiagnosticCategory.Error, key: "Option_isolatedModules_can_only_be_used_when_either_option_module_is_provided_or_option_target_is_ES_5047", message: "Option 'isolatedModules' can only be used when either option '--module' is provided or option 'target' is 'ES2015' or higher." },
    Option_0_can_only_be_used_when_either_option_inlineSourceMap_or_option_sourceMap_is_provided: { code: 5051, category: ts.DiagnosticCategory.Error, key: "Option_0_can_only_be_used_when_either_option_inlineSourceMap_or_option_sourceMap_is_provided_5051", message: "Option '{0} can only be used when either option '--inlineSourceMap' or option '--sourceMap' is provided." },
    Option_0_cannot_be_specified_without_specifying_option_1: { code: 5052, category: ts.DiagnosticCategory.Error, key: "Option_0_cannot_be_specified_without_specifying_option_1_5052", message: "Option '{0}' cannot be specified without specifying option '{1}'." },
    Option_0_cannot_be_specified_with_option_1: { code: 5053, category: ts.DiagnosticCategory.Error, key: "Option_0_cannot_be_specified_with_option_1_5053", message: "Option '{0}' cannot be specified with option '{1}'." },
    A_tsconfig_json_file_is_already_defined_at_Colon_0: { code: 5054, category: ts.DiagnosticCategory.Error, key: "A_tsconfig_json_file_is_already_defined_at_Colon_0_5054", message: "A 'tsconfig.json' file is already defined at: '{0}'." },
    Cannot_write_file_0_because_it_would_overwrite_input_file: { code: 5055, category: ts.DiagnosticCategory.Error, key: "Cannot_write_file_0_because_it_would_overwrite_input_file_5055", message: "Cannot write file '{0}' because it would overwrite input file." },
    Cannot_write_file_0_because_it_would_be_overwritten_by_multiple_input_files: { code: 5056, category: ts.DiagnosticCategory.Error, key: "Cannot_write_file_0_because_it_would_be_overwritten_by_multiple_input_files_5056", message: "Cannot write file '{0}' because it would be overwritten by multiple input files." },
    Cannot_find_a_tsconfig_json_file_at_the_specified_directory_Colon_0: { code: 5057, category: ts.DiagnosticCategory.Error, key: "Cannot_find_a_tsconfig_json_file_at_the_specified_directory_Colon_0_5057", message: "Cannot find a tsconfig.json file at the specified directory: '{0}'" },
    The_specified_path_does_not_exist_Colon_0: { code: 5058, category: ts.DiagnosticCategory.Error, key: "The_specified_path_does_not_exist_Colon_0_5058", message: "The specified path does not exist: '{0}'" },
    Invalid_value_for_reactNamespace_0_is_not_a_valid_identifier: { code: 5059, category: ts.DiagnosticCategory.Error, key: "Invalid_value_for_reactNamespace_0_is_not_a_valid_identifier_5059", message: "Invalid value for '--reactNamespace'. '{0}' is not a valid identifier." },
    Option_paths_cannot_be_used_without_specifying_baseUrl_option: { code: 5060, category: ts.DiagnosticCategory.Error, key: "Option_paths_cannot_be_used_without_specifying_baseUrl_option_5060", message: "Option 'paths' cannot be used without specifying '--baseUrl' option." },
    Pattern_0_can_have_at_most_one_Asterisk_character: { code: 5061, category: ts.DiagnosticCategory.Error, key: "Pattern_0_can_have_at_most_one_Asterisk_character_5061", message: "Pattern '{0}' can have at most one '*' character" },
    Substitution_0_in_pattern_1_in_can_have_at_most_one_Asterisk_character: { code: 5062, category: ts.DiagnosticCategory.Error, key: "Substitution_0_in_pattern_1_in_can_have_at_most_one_Asterisk_character_5062", message: "Substitution '{0}' in pattern '{1}' in can have at most one '*' character" },
    Substitutions_for_pattern_0_should_be_an_array: { code: 5063, category: ts.DiagnosticCategory.Error, key: "Substitutions_for_pattern_0_should_be_an_array_5063", message: "Substitutions for pattern '{0}' should be an array." },
    Substitution_0_for_pattern_1_has_incorrect_type_expected_string_got_2: { code: 5064, category: ts.DiagnosticCategory.Error, key: "Substitution_0_for_pattern_1_has_incorrect_type_expected_string_got_2_5064", message: "Substitution '{0}' for pattern '{1}' has incorrect type, expected 'string', got '{2}'." },
    File_specification_cannot_contain_a_parent_directory_that_appears_after_a_recursive_directory_wildcard_Asterisk_Asterisk_Colon_0: { code: 5065, category: ts.DiagnosticCategory.Error, key: "File_specification_cannot_contain_a_parent_directory_that_appears_after_a_recursive_directory_wildca_5065", message: "File specification cannot contain a parent directory ('..') that appears after a recursive directory wildcard ('**'): '{0}'." },
    Substitutions_for_pattern_0_shouldn_t_be_an_empty_array: { code: 5066, category: ts.DiagnosticCategory.Error, key: "Substitutions_for_pattern_0_shouldn_t_be_an_empty_array_5066", message: "Substitutions for pattern '{0}' shouldn't be an empty array." },
    Invalid_value_for_jsxFactory_0_is_not_a_valid_identifier_or_qualified_name: { code: 5067, category: ts.DiagnosticCategory.Error, key: "Invalid_value_for_jsxFactory_0_is_not_a_valid_identifier_or_qualified_name_5067", message: "Invalid value for 'jsxFactory'. '{0}' is not a valid identifier or qualified-name." },
    Concatenate_and_emit_output_to_single_file: { code: 6001, category: ts.DiagnosticCategory.Message, key: "Concatenate_and_emit_output_to_single_file_6001", message: "Concatenate and emit output to single file." },
    Generates_corresponding_d_ts_file: { code: 6002, category: ts.DiagnosticCategory.Message, key: "Generates_corresponding_d_ts_file_6002", message: "Generates corresponding '.d.ts' file." },
    Specify_the_location_where_debugger_should_locate_map_files_instead_of_generated_locations: { code: 6003, category: ts.DiagnosticCategory.Message, key: "Specify_the_location_where_debugger_should_locate_map_files_instead_of_generated_locations_6003", message: "Specify the location where debugger should locate map files instead of generated locations." },
    Specify_the_location_where_debugger_should_locate_TypeScript_files_instead_of_source_locations: { code: 6004, category: ts.DiagnosticCategory.Message, key: "Specify_the_location_where_debugger_should_locate_TypeScript_files_instead_of_source_locations_6004", message: "Specify the location where debugger should locate TypeScript files instead of source locations." },
    Watch_input_files: { code: 6005, category: ts.DiagnosticCategory.Message, key: "Watch_input_files_6005", message: "Watch input files." },
    Redirect_output_structure_to_the_directory: { code: 6006, category: ts.DiagnosticCategory.Message, key: "Redirect_output_structure_to_the_directory_6006", message: "Redirect output structure to the directory." },
    Do_not_erase_const_enum_declarations_in_generated_code: { code: 6007, category: ts.DiagnosticCategory.Message, key: "Do_not_erase_const_enum_declarations_in_generated_code_6007", message: "Do not erase const enum declarations in generated code." },
    Do_not_emit_outputs_if_any_errors_were_reported: { code: 6008, category: ts.DiagnosticCategory.Message, key: "Do_not_emit_outputs_if_any_errors_were_reported_6008", message: "Do not emit outputs if any errors were reported." },
    Do_not_emit_comments_to_output: { code: 6009, category: ts.DiagnosticCategory.Message, key: "Do_not_emit_comments_to_output_6009", message: "Do not emit comments to output." },
    Do_not_emit_outputs: { code: 6010, category: ts.DiagnosticCategory.Message, key: "Do_not_emit_outputs_6010", message: "Do not emit outputs." },
    Allow_default_imports_from_modules_with_no_default_export_This_does_not_affect_code_emit_just_typechecking: { code: 6011, category: ts.DiagnosticCategory.Message, key: "Allow_default_imports_from_modules_with_no_default_export_This_does_not_affect_code_emit_just_typech_6011", message: "Allow default imports from modules with no default export. This does not affect code emit, just typechecking." },
    Skip_type_checking_of_declaration_files: { code: 6012, category: ts.DiagnosticCategory.Message, key: "Skip_type_checking_of_declaration_files_6012", message: "Skip type checking of declaration files." },
    Specify_ECMAScript_target_version_Colon_ES3_default_ES5_ES2015_ES2016_ES2017_or_ESNEXT: { code: 6015, category: ts.DiagnosticCategory.Message, key: "Specify_ECMAScript_target_version_Colon_ES3_default_ES5_ES2015_ES2016_ES2017_or_ESNEXT_6015", message: "Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'" },
    Specify_module_code_generation_Colon_commonjs_amd_system_umd_or_es2015: { code: 6016, category: ts.DiagnosticCategory.Message, key: "Specify_module_code_generation_Colon_commonjs_amd_system_umd_or_es2015_6016", message: "Specify module code generation: 'commonjs', 'amd', 'system', 'umd' or 'es2015'" },
    Print_this_message: { code: 6017, category: ts.DiagnosticCategory.Message, key: "Print_this_message_6017", message: "Print this message." },
    Print_the_compiler_s_version: { code: 6019, category: ts.DiagnosticCategory.Message, key: "Print_the_compiler_s_version_6019", message: "Print the compiler's version." },
    Compile_the_project_in_the_given_directory: { code: 6020, category: ts.DiagnosticCategory.Message, key: "Compile_the_project_in_the_given_directory_6020", message: "Compile the project in the given directory." },
    Syntax_Colon_0: { code: 6023, category: ts.DiagnosticCategory.Message, key: "Syntax_Colon_0_6023", message: "Syntax: {0}" },
    options: { code: 6024, category: ts.DiagnosticCategory.Message, key: "options_6024", message: "options" },
    file: { code: 6025, category: ts.DiagnosticCategory.Message, key: "file_6025", message: "file" },
    Examples_Colon_0: { code: 6026, category: ts.DiagnosticCategory.Message, key: "Examples_Colon_0_6026", message: "Examples: {0}" },
    Options_Colon: { code: 6027, category: ts.DiagnosticCategory.Message, key: "Options_Colon_6027", message: "Options:" },
    Version_0: { code: 6029, category: ts.DiagnosticCategory.Message, key: "Version_0_6029", message: "Version {0}" },
    Insert_command_line_options_and_files_from_a_file: { code: 6030, category: ts.DiagnosticCategory.Message, key: "Insert_command_line_options_and_files_from_a_file_6030", message: "Insert command line options and files from a file." },
    File_change_detected_Starting_incremental_compilation: { code: 6032, category: ts.DiagnosticCategory.Message, key: "File_change_detected_Starting_incremental_compilation_6032", message: "File change detected. Starting incremental compilation..." },
    KIND: { code: 6034, category: ts.DiagnosticCategory.Message, key: "KIND_6034", message: "KIND" },
    FILE: { code: 6035, category: ts.DiagnosticCategory.Message, key: "FILE_6035", message: "FILE" },
    VERSION: { code: 6036, category: ts.DiagnosticCategory.Message, key: "VERSION_6036", message: "VERSION" },
    LOCATION: { code: 6037, category: ts.DiagnosticCategory.Message, key: "LOCATION_6037", message: "LOCATION" },
    DIRECTORY: { code: 6038, category: ts.DiagnosticCategory.Message, key: "DIRECTORY_6038", message: "DIRECTORY" },
    STRATEGY: { code: 6039, category: ts.DiagnosticCategory.Message, key: "STRATEGY_6039", message: "STRATEGY" },
    Compilation_complete_Watching_for_file_changes: { code: 6042, category: ts.DiagnosticCategory.Message, key: "Compilation_complete_Watching_for_file_changes_6042", message: "Compilation complete. Watching for file changes." },
    Generates_corresponding_map_file: { code: 6043, category: ts.DiagnosticCategory.Message, key: "Generates_corresponding_map_file_6043", message: "Generates corresponding '.map' file." },
    Compiler_option_0_expects_an_argument: { code: 6044, category: ts.DiagnosticCategory.Error, key: "Compiler_option_0_expects_an_argument_6044", message: "Compiler option '{0}' expects an argument." },
    Unterminated_quoted_string_in_response_file_0: { code: 6045, category: ts.DiagnosticCategory.Error, key: "Unterminated_quoted_string_in_response_file_0_6045", message: "Unterminated quoted string in response file '{0}'." },
    Argument_for_0_option_must_be_Colon_1: { code: 6046, category: ts.DiagnosticCategory.Error, key: "Argument_for_0_option_must_be_Colon_1_6046", message: "Argument for '{0}' option must be: {1}" },
    Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1: { code: 6048, category: ts.DiagnosticCategory.Error, key: "Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1_6048", message: "Locale must be of the form <language> or <language>-<territory>. For example '{0}' or '{1}'." },
    Unsupported_locale_0: { code: 6049, category: ts.DiagnosticCategory.Error, key: "Unsupported_locale_0_6049", message: "Unsupported locale '{0}'." },
    Unable_to_open_file_0: { code: 6050, category: ts.DiagnosticCategory.Error, key: "Unable_to_open_file_0_6050", message: "Unable to open file '{0}'." },
    Corrupted_locale_file_0: { code: 6051, category: ts.DiagnosticCategory.Error, key: "Corrupted_locale_file_0_6051", message: "Corrupted locale file {0}." },
    Raise_error_on_expressions_and_declarations_with_an_implied_any_type: { code: 6052, category: ts.DiagnosticCategory.Message, key: "Raise_error_on_expressions_and_declarations_with_an_implied_any_type_6052", message: "Raise error on expressions and declarations with an implied 'any' type." },
    File_0_not_found: { code: 6053, category: ts.DiagnosticCategory.Error, key: "File_0_not_found_6053", message: "File '{0}' not found." },
    File_0_has_unsupported_extension_The_only_supported_extensions_are_1: { code: 6054, category: ts.DiagnosticCategory.Error, key: "File_0_has_unsupported_extension_The_only_supported_extensions_are_1_6054", message: "File '{0}' has unsupported extension. The only supported extensions are {1}." },
    Suppress_noImplicitAny_errors_for_indexing_objects_lacking_index_signatures: { code: 6055, category: ts.DiagnosticCategory.Message, key: "Suppress_noImplicitAny_errors_for_indexing_objects_lacking_index_signatures_6055", message: "Suppress noImplicitAny errors for indexing objects lacking index signatures." },
    Do_not_emit_declarations_for_code_that_has_an_internal_annotation: { code: 6056, category: ts.DiagnosticCategory.Message, key: "Do_not_emit_declarations_for_code_that_has_an_internal_annotation_6056", message: "Do not emit declarations for code that has an '@internal' annotation." },
    Specify_the_root_directory_of_input_files_Use_to_control_the_output_directory_structure_with_outDir: { code: 6058, category: ts.DiagnosticCategory.Message, key: "Specify_the_root_directory_of_input_files_Use_to_control_the_output_directory_structure_with_outDir_6058", message: "Specify the root directory of input files. Use to control the output directory structure with --outDir." },
    File_0_is_not_under_rootDir_1_rootDir_is_expected_to_contain_all_source_files: { code: 6059, category: ts.DiagnosticCategory.Error, key: "File_0_is_not_under_rootDir_1_rootDir_is_expected_to_contain_all_source_files_6059", message: "File '{0}' is not under 'rootDir' '{1}'. 'rootDir' is expected to contain all source files." },
    Specify_the_end_of_line_sequence_to_be_used_when_emitting_files_Colon_CRLF_dos_or_LF_unix: { code: 6060, category: ts.DiagnosticCategory.Message, key: "Specify_the_end_of_line_sequence_to_be_used_when_emitting_files_Colon_CRLF_dos_or_LF_unix_6060", message: "Specify the end of line sequence to be used when emitting files: 'CRLF' (dos) or 'LF' (unix)." },
    NEWLINE: { code: 6061, category: ts.DiagnosticCategory.Message, key: "NEWLINE_6061", message: "NEWLINE" },
    Option_0_can_only_be_specified_in_tsconfig_json_file: { code: 6064, category: ts.DiagnosticCategory.Error, key: "Option_0_can_only_be_specified_in_tsconfig_json_file_6064", message: "Option '{0}' can only be specified in 'tsconfig.json' file." },
    Enables_experimental_support_for_ES7_decorators: { code: 6065, category: ts.DiagnosticCategory.Message, key: "Enables_experimental_support_for_ES7_decorators_6065", message: "Enables experimental support for ES7 decorators." },
    Enables_experimental_support_for_emitting_type_metadata_for_decorators: { code: 6066, category: ts.DiagnosticCategory.Message, key: "Enables_experimental_support_for_emitting_type_metadata_for_decorators_6066", message: "Enables experimental support for emitting type metadata for decorators." },
    Enables_experimental_support_for_ES7_async_functions: { code: 6068, category: ts.DiagnosticCategory.Message, key: "Enables_experimental_support_for_ES7_async_functions_6068", message: "Enables experimental support for ES7 async functions." },
    Specify_module_resolution_strategy_Colon_node_Node_js_or_classic_TypeScript_pre_1_6: { code: 6069, category: ts.DiagnosticCategory.Message, key: "Specify_module_resolution_strategy_Colon_node_Node_js_or_classic_TypeScript_pre_1_6_6069", message: "Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6)." },
    Initializes_a_TypeScript_project_and_creates_a_tsconfig_json_file: { code: 6070, category: ts.DiagnosticCategory.Message, key: "Initializes_a_TypeScript_project_and_creates_a_tsconfig_json_file_6070", message: "Initializes a TypeScript project and creates a tsconfig.json file." },
    Successfully_created_a_tsconfig_json_file: { code: 6071, category: ts.DiagnosticCategory.Message, key: "Successfully_created_a_tsconfig_json_file_6071", message: "Successfully created a tsconfig.json file." },
    Suppress_excess_property_checks_for_object_literals: { code: 6072, category: ts.DiagnosticCategory.Message, key: "Suppress_excess_property_checks_for_object_literals_6072", message: "Suppress excess property checks for object literals." },
    Stylize_errors_and_messages_using_color_and_context_experimental: { code: 6073, category: ts.DiagnosticCategory.Message, key: "Stylize_errors_and_messages_using_color_and_context_experimental_6073", message: "Stylize errors and messages using color and context. (experimental)" },
    Do_not_report_errors_on_unused_labels: { code: 6074, category: ts.DiagnosticCategory.Message, key: "Do_not_report_errors_on_unused_labels_6074", message: "Do not report errors on unused labels." },
    Report_error_when_not_all_code_paths_in_function_return_a_value: { code: 6075, category: ts.DiagnosticCategory.Message, key: "Report_error_when_not_all_code_paths_in_function_return_a_value_6075", message: "Report error when not all code paths in function return a value." },
    Report_errors_for_fallthrough_cases_in_switch_statement: { code: 6076, category: ts.DiagnosticCategory.Message, key: "Report_errors_for_fallthrough_cases_in_switch_statement_6076", message: "Report errors for fallthrough cases in switch statement." },
    Do_not_report_errors_on_unreachable_code: { code: 6077, category: ts.DiagnosticCategory.Message, key: "Do_not_report_errors_on_unreachable_code_6077", message: "Do not report errors on unreachable code." },
    Disallow_inconsistently_cased_references_to_the_same_file: { code: 6078, category: ts.DiagnosticCategory.Message, key: "Disallow_inconsistently_cased_references_to_the_same_file_6078", message: "Disallow inconsistently-cased references to the same file." },
    Specify_library_files_to_be_included_in_the_compilation_Colon: { code: 6079, category: ts.DiagnosticCategory.Message, key: "Specify_library_files_to_be_included_in_the_compilation_Colon_6079", message: "Specify library files to be included in the compilation: " },
    Specify_JSX_code_generation_Colon_preserve_or_react: { code: 6080, category: ts.DiagnosticCategory.Message, key: "Specify_JSX_code_generation_Colon_preserve_or_react_6080", message: "Specify JSX code generation: 'preserve' or 'react'" },
    File_0_has_an_unsupported_extension_so_skipping_it: { code: 6081, category: ts.DiagnosticCategory.Message, key: "File_0_has_an_unsupported_extension_so_skipping_it_6081", message: "File '{0}' has an unsupported extension, so skipping it." },
    Only_amd_and_system_modules_are_supported_alongside_0: { code: 6082, category: ts.DiagnosticCategory.Error, key: "Only_amd_and_system_modules_are_supported_alongside_0_6082", message: "Only 'amd' and 'system' modules are supported alongside --{0}." },
    Base_directory_to_resolve_non_absolute_module_names: { code: 6083, category: ts.DiagnosticCategory.Message, key: "Base_directory_to_resolve_non_absolute_module_names_6083", message: "Base directory to resolve non-absolute module names." },
    Specify_the_object_invoked_for_createElement_and_spread_when_targeting_react_JSX_emit: { code: 6084, category: ts.DiagnosticCategory.Message, key: "Specify_the_object_invoked_for_createElement_and_spread_when_targeting_react_JSX_emit_6084", message: "Specify the object invoked for createElement and __spread when targeting 'react' JSX emit" },
    Enable_tracing_of_the_name_resolution_process: { code: 6085, category: ts.DiagnosticCategory.Message, key: "Enable_tracing_of_the_name_resolution_process_6085", message: "Enable tracing of the name resolution process." },
    Resolving_module_0_from_1: { code: 6086, category: ts.DiagnosticCategory.Message, key: "Resolving_module_0_from_1_6086", message: "======== Resolving module '{0}' from '{1}'. ========" },
    Explicitly_specified_module_resolution_kind_Colon_0: { code: 6087, category: ts.DiagnosticCategory.Message, key: "Explicitly_specified_module_resolution_kind_Colon_0_6087", message: "Explicitly specified module resolution kind: '{0}'." },
    Module_resolution_kind_is_not_specified_using_0: { code: 6088, category: ts.DiagnosticCategory.Message, key: "Module_resolution_kind_is_not_specified_using_0_6088", message: "Module resolution kind is not specified, using '{0}'." },
    Module_name_0_was_successfully_resolved_to_1: { code: 6089, category: ts.DiagnosticCategory.Message, key: "Module_name_0_was_successfully_resolved_to_1_6089", message: "======== Module name '{0}' was successfully resolved to '{1}'. ========" },
    Module_name_0_was_not_resolved: { code: 6090, category: ts.DiagnosticCategory.Message, key: "Module_name_0_was_not_resolved_6090", message: "======== Module name '{0}' was not resolved. ========" },
    paths_option_is_specified_looking_for_a_pattern_to_match_module_name_0: { code: 6091, category: ts.DiagnosticCategory.Message, key: "paths_option_is_specified_looking_for_a_pattern_to_match_module_name_0_6091", message: "'paths' option is specified, looking for a pattern to match module name '{0}'." },
    Module_name_0_matched_pattern_1: { code: 6092, category: ts.DiagnosticCategory.Message, key: "Module_name_0_matched_pattern_1_6092", message: "Module name '{0}', matched pattern '{1}'." },
    Trying_substitution_0_candidate_module_location_Colon_1: { code: 6093, category: ts.DiagnosticCategory.Message, key: "Trying_substitution_0_candidate_module_location_Colon_1_6093", message: "Trying substitution '{0}', candidate module location: '{1}'." },
    Resolving_module_name_0_relative_to_base_url_1_2: { code: 6094, category: ts.DiagnosticCategory.Message, key: "Resolving_module_name_0_relative_to_base_url_1_2_6094", message: "Resolving module name '{0}' relative to base url '{1}' - '{2}'." },
    Loading_module_as_file_Slash_folder_candidate_module_location_0: { code: 6095, category: ts.DiagnosticCategory.Message, key: "Loading_module_as_file_Slash_folder_candidate_module_location_0_6095", message: "Loading module as file / folder, candidate module location '{0}'." },
    File_0_does_not_exist: { code: 6096, category: ts.DiagnosticCategory.Message, key: "File_0_does_not_exist_6096", message: "File '{0}' does not exist." },
    File_0_exist_use_it_as_a_name_resolution_result: { code: 6097, category: ts.DiagnosticCategory.Message, key: "File_0_exist_use_it_as_a_name_resolution_result_6097", message: "File '{0}' exist - use it as a name resolution result." },
    Loading_module_0_from_node_modules_folder: { code: 6098, category: ts.DiagnosticCategory.Message, key: "Loading_module_0_from_node_modules_folder_6098", message: "Loading module '{0}' from 'node_modules' folder." },
    Found_package_json_at_0: { code: 6099, category: ts.DiagnosticCategory.Message, key: "Found_package_json_at_0_6099", message: "Found 'package.json' at '{0}'." },
    package_json_does_not_have_a_types_or_main_field: { code: 6100, category: ts.DiagnosticCategory.Message, key: "package_json_does_not_have_a_types_or_main_field_6100", message: "'package.json' does not have a 'types' or 'main' field." },
    package_json_has_0_field_1_that_references_2: { code: 6101, category: ts.DiagnosticCategory.Message, key: "package_json_has_0_field_1_that_references_2_6101", message: "'package.json' has '{0}' field '{1}' that references '{2}'." },
    Allow_javascript_files_to_be_compiled: { code: 6102, category: ts.DiagnosticCategory.Message, key: "Allow_javascript_files_to_be_compiled_6102", message: "Allow javascript files to be compiled." },
    Option_0_should_have_array_of_strings_as_a_value: { code: 6103, category: ts.DiagnosticCategory.Error, key: "Option_0_should_have_array_of_strings_as_a_value_6103", message: "Option '{0}' should have array of strings as a value." },
    Checking_if_0_is_the_longest_matching_prefix_for_1_2: { code: 6104, category: ts.DiagnosticCategory.Message, key: "Checking_if_0_is_the_longest_matching_prefix_for_1_2_6104", message: "Checking if '{0}' is the longest matching prefix for '{1}' - '{2}'." },
    Expected_type_of_0_field_in_package_json_to_be_string_got_1: { code: 6105, category: ts.DiagnosticCategory.Message, key: "Expected_type_of_0_field_in_package_json_to_be_string_got_1_6105", message: "Expected type of '{0}' field in 'package.json' to be 'string', got '{1}'." },
    baseUrl_option_is_set_to_0_using_this_value_to_resolve_non_relative_module_name_1: { code: 6106, category: ts.DiagnosticCategory.Message, key: "baseUrl_option_is_set_to_0_using_this_value_to_resolve_non_relative_module_name_1_6106", message: "'baseUrl' option is set to '{0}', using this value to resolve non-relative module name '{1}'" },
    rootDirs_option_is_set_using_it_to_resolve_relative_module_name_0: { code: 6107, category: ts.DiagnosticCategory.Message, key: "rootDirs_option_is_set_using_it_to_resolve_relative_module_name_0_6107", message: "'rootDirs' option is set, using it to resolve relative module name '{0}'" },
    Longest_matching_prefix_for_0_is_1: { code: 6108, category: ts.DiagnosticCategory.Message, key: "Longest_matching_prefix_for_0_is_1_6108", message: "Longest matching prefix for '{0}' is '{1}'" },
    Loading_0_from_the_root_dir_1_candidate_location_2: { code: 6109, category: ts.DiagnosticCategory.Message, key: "Loading_0_from_the_root_dir_1_candidate_location_2_6109", message: "Loading '{0}' from the root dir '{1}', candidate location '{2}'" },
    Trying_other_entries_in_rootDirs: { code: 6110, category: ts.DiagnosticCategory.Message, key: "Trying_other_entries_in_rootDirs_6110", message: "Trying other entries in 'rootDirs'" },
    Module_resolution_using_rootDirs_has_failed: { code: 6111, category: ts.DiagnosticCategory.Message, key: "Module_resolution_using_rootDirs_has_failed_6111", message: "Module resolution using 'rootDirs' has failed" },
    Do_not_emit_use_strict_directives_in_module_output: { code: 6112, category: ts.DiagnosticCategory.Message, key: "Do_not_emit_use_strict_directives_in_module_output_6112", message: "Do not emit 'use strict' directives in module output." },
    Enable_strict_null_checks: { code: 6113, category: ts.DiagnosticCategory.Message, key: "Enable_strict_null_checks_6113", message: "Enable strict null checks." },
    Unknown_option_excludes_Did_you_mean_exclude: { code: 6114, category: ts.DiagnosticCategory.Error, key: "Unknown_option_excludes_Did_you_mean_exclude_6114", message: "Unknown option 'excludes'. Did you mean 'exclude'?" },
    Raise_error_on_this_expressions_with_an_implied_any_type: { code: 6115, category: ts.DiagnosticCategory.Message, key: "Raise_error_on_this_expressions_with_an_implied_any_type_6115", message: "Raise error on 'this' expressions with an implied 'any' type." },
    Resolving_type_reference_directive_0_containing_file_1_root_directory_2: { code: 6116, category: ts.DiagnosticCategory.Message, key: "Resolving_type_reference_directive_0_containing_file_1_root_directory_2_6116", message: "======== Resolving type reference directive '{0}', containing file '{1}', root directory '{2}'. ========" },
    Resolving_using_primary_search_paths: { code: 6117, category: ts.DiagnosticCategory.Message, key: "Resolving_using_primary_search_paths_6117", message: "Resolving using primary search paths..." },
    Resolving_from_node_modules_folder: { code: 6118, category: ts.DiagnosticCategory.Message, key: "Resolving_from_node_modules_folder_6118", message: "Resolving from node_modules folder..." },
    Type_reference_directive_0_was_successfully_resolved_to_1_primary_Colon_2: { code: 6119, category: ts.DiagnosticCategory.Message, key: "Type_reference_directive_0_was_successfully_resolved_to_1_primary_Colon_2_6119", message: "======== Type reference directive '{0}' was successfully resolved to '{1}', primary: {2}. ========" },
    Type_reference_directive_0_was_not_resolved: { code: 6120, category: ts.DiagnosticCategory.Message, key: "Type_reference_directive_0_was_not_resolved_6120", message: "======== Type reference directive '{0}' was not resolved. ========" },
    Resolving_with_primary_search_path_0: { code: 6121, category: ts.DiagnosticCategory.Message, key: "Resolving_with_primary_search_path_0_6121", message: "Resolving with primary search path '{0}'" },
    Root_directory_cannot_be_determined_skipping_primary_search_paths: { code: 6122, category: ts.DiagnosticCategory.Message, key: "Root_directory_cannot_be_determined_skipping_primary_search_paths_6122", message: "Root directory cannot be determined, skipping primary search paths." },
    Resolving_type_reference_directive_0_containing_file_1_root_directory_not_set: { code: 6123, category: ts.DiagnosticCategory.Message, key: "Resolving_type_reference_directive_0_containing_file_1_root_directory_not_set_6123", message: "======== Resolving type reference directive '{0}', containing file '{1}', root directory not set. ========" },
    Type_declaration_files_to_be_included_in_compilation: { code: 6124, category: ts.DiagnosticCategory.Message, key: "Type_declaration_files_to_be_included_in_compilation_6124", message: "Type declaration files to be included in compilation." },
    Looking_up_in_node_modules_folder_initial_location_0: { code: 6125, category: ts.DiagnosticCategory.Message, key: "Looking_up_in_node_modules_folder_initial_location_0_6125", message: "Looking up in 'node_modules' folder, initial location '{0}'" },
    Containing_file_is_not_specified_and_root_directory_cannot_be_determined_skipping_lookup_in_node_modules_folder: { code: 6126, category: ts.DiagnosticCategory.Message, key: "Containing_file_is_not_specified_and_root_directory_cannot_be_determined_skipping_lookup_in_node_mod_6126", message: "Containing file is not specified and root directory cannot be determined, skipping lookup in 'node_modules' folder." },
    Resolving_type_reference_directive_0_containing_file_not_set_root_directory_1: { code: 6127, category: ts.DiagnosticCategory.Message, key: "Resolving_type_reference_directive_0_containing_file_not_set_root_directory_1_6127", message: "======== Resolving type reference directive '{0}', containing file not set, root directory '{1}'. ========" },
    Resolving_type_reference_directive_0_containing_file_not_set_root_directory_not_set: { code: 6128, category: ts.DiagnosticCategory.Message, key: "Resolving_type_reference_directive_0_containing_file_not_set_root_directory_not_set_6128", message: "======== Resolving type reference directive '{0}', containing file not set, root directory not set. ========" },
    The_config_file_0_found_doesn_t_contain_any_source_files: { code: 6129, category: ts.DiagnosticCategory.Error, key: "The_config_file_0_found_doesn_t_contain_any_source_files_6129", message: "The config file '{0}' found doesn't contain any source files." },
    Resolving_real_path_for_0_result_1: { code: 6130, category: ts.DiagnosticCategory.Message, key: "Resolving_real_path_for_0_result_1_6130", message: "Resolving real path for '{0}', result '{1}'" },
    Cannot_compile_modules_using_option_0_unless_the_module_flag_is_amd_or_system: { code: 6131, category: ts.DiagnosticCategory.Error, key: "Cannot_compile_modules_using_option_0_unless_the_module_flag_is_amd_or_system_6131", message: "Cannot compile modules using option '{0}' unless the '--module' flag is 'amd' or 'system'." },
    File_name_0_has_a_1_extension_stripping_it: { code: 6132, category: ts.DiagnosticCategory.Message, key: "File_name_0_has_a_1_extension_stripping_it_6132", message: "File name '{0}' has a '{1}' extension - stripping it" },
    _0_is_declared_but_never_used: { code: 6133, category: ts.DiagnosticCategory.Error, key: "_0_is_declared_but_never_used_6133", message: "'{0}' is declared but never used." },
    Report_errors_on_unused_locals: { code: 6134, category: ts.DiagnosticCategory.Message, key: "Report_errors_on_unused_locals_6134", message: "Report errors on unused locals." },
    Report_errors_on_unused_parameters: { code: 6135, category: ts.DiagnosticCategory.Message, key: "Report_errors_on_unused_parameters_6135", message: "Report errors on unused parameters." },
    The_maximum_dependency_depth_to_search_under_node_modules_and_load_JavaScript_files: { code: 6136, category: ts.DiagnosticCategory.Message, key: "The_maximum_dependency_depth_to_search_under_node_modules_and_load_JavaScript_files_6136", message: "The maximum dependency depth to search under node_modules and load JavaScript files" },
    No_types_specified_in_package_json_so_returning_main_value_of_0: { code: 6137, category: ts.DiagnosticCategory.Message, key: "No_types_specified_in_package_json_so_returning_main_value_of_0_6137", message: "No types specified in 'package.json', so returning 'main' value of '{0}'" },
    Property_0_is_declared_but_never_used: { code: 6138, category: ts.DiagnosticCategory.Error, key: "Property_0_is_declared_but_never_used_6138", message: "Property '{0}' is declared but never used." },
    Import_emit_helpers_from_tslib: { code: 6139, category: ts.DiagnosticCategory.Message, key: "Import_emit_helpers_from_tslib_6139", message: "Import emit helpers from 'tslib'." },
    Auto_discovery_for_typings_is_enabled_in_project_0_Running_extra_resolution_pass_for_module_1_using_cache_location_2: { code: 6140, category: ts.DiagnosticCategory.Error, key: "Auto_discovery_for_typings_is_enabled_in_project_0_Running_extra_resolution_pass_for_module_1_using__6140", message: "Auto discovery for typings is enabled in project '{0}'. Running extra resolution pass for module '{1}' using cache location '{2}'." },
    Parse_in_strict_mode_and_emit_use_strict_for_each_source_file: { code: 6141, category: ts.DiagnosticCategory.Message, key: "Parse_in_strict_mode_and_emit_use_strict_for_each_source_file_6141", message: "Parse in strict mode and emit \"use strict\" for each source file" },
    Module_0_was_resolved_to_1_but_jsx_is_not_set: { code: 6142, category: ts.DiagnosticCategory.Error, key: "Module_0_was_resolved_to_1_but_jsx_is_not_set_6142", message: "Module '{0}' was resolved to '{1}', but '--jsx' is not set." },
    Module_0_was_resolved_to_1_but_allowJs_is_not_set: { code: 6143, category: ts.DiagnosticCategory.Error, key: "Module_0_was_resolved_to_1_but_allowJs_is_not_set_6143", message: "Module '{0}' was resolved to '{1}', but '--allowJs' is not set." },
    Module_0_was_resolved_as_locally_declared_ambient_module_in_file_1: { code: 6144, category: ts.DiagnosticCategory.Message, key: "Module_0_was_resolved_as_locally_declared_ambient_module_in_file_1_6144", message: "Module '{0}' was resolved as locally declared ambient module in file '{1}'." },
    Module_0_was_resolved_as_ambient_module_declared_in_1_since_this_file_was_not_modified: { code: 6145, category: ts.DiagnosticCategory.Message, key: "Module_0_was_resolved_as_ambient_module_declared_in_1_since_this_file_was_not_modified_6145", message: "Module '{0}' was resolved as ambient module declared in '{1}' since this file was not modified." },
    Specify_the_JSX_factory_function_to_use_when_targeting_react_JSX_emit_e_g_React_createElement_or_h: { code: 6146, category: ts.DiagnosticCategory.Message, key: "Specify_the_JSX_factory_function_to_use_when_targeting_react_JSX_emit_e_g_React_createElement_or_h_6146", message: "Specify the JSX factory function to use when targeting 'react' JSX emit, e.g. 'React.createElement' or 'h'." },
    Resolution_for_module_0_was_found_in_cache: { code: 6147, category: ts.DiagnosticCategory.Message, key: "Resolution_for_module_0_was_found_in_cache_6147", message: "Resolution for module '{0}' was found in cache" },
    Variable_0_implicitly_has_an_1_type: { code: 7005, category: ts.DiagnosticCategory.Error, key: "Variable_0_implicitly_has_an_1_type_7005", message: "Variable '{0}' implicitly has an '{1}' type." },
    Parameter_0_implicitly_has_an_1_type: { code: 7006, category: ts.DiagnosticCategory.Error, key: "Parameter_0_implicitly_has_an_1_type_7006", message: "Parameter '{0}' implicitly has an '{1}' type." },
    Member_0_implicitly_has_an_1_type: { code: 7008, category: ts.DiagnosticCategory.Error, key: "Member_0_implicitly_has_an_1_type_7008", message: "Member '{0}' implicitly has an '{1}' type." },
    new_expression_whose_target_lacks_a_construct_signature_implicitly_has_an_any_type: { code: 7009, category: ts.DiagnosticCategory.Error, key: "new_expression_whose_target_lacks_a_construct_signature_implicitly_has_an_any_type_7009", message: "'new' expression, whose target lacks a construct signature, implicitly has an 'any' type." },
    _0_which_lacks_return_type_annotation_implicitly_has_an_1_return_type: { code: 7010, category: ts.DiagnosticCategory.Error, key: "_0_which_lacks_return_type_annotation_implicitly_has_an_1_return_type_7010", message: "'{0}', which lacks return-type annotation, implicitly has an '{1}' return type." },
    Function_expression_which_lacks_return_type_annotation_implicitly_has_an_0_return_type: { code: 7011, category: ts.DiagnosticCategory.Error, key: "Function_expression_which_lacks_return_type_annotation_implicitly_has_an_0_return_type_7011", message: "Function expression, which lacks return-type annotation, implicitly has an '{0}' return type." },
    Construct_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type: { code: 7013, category: ts.DiagnosticCategory.Error, key: "Construct_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type_7013", message: "Construct signature, which lacks return-type annotation, implicitly has an 'any' return type." },
    Element_implicitly_has_an_any_type_because_index_expression_is_not_of_type_number: { code: 7015, category: ts.DiagnosticCategory.Error, key: "Element_implicitly_has_an_any_type_because_index_expression_is_not_of_type_number_7015", message: "Element implicitly has an 'any' type because index expression is not of type 'number'." },
    Could_not_find_a_declaration_file_for_module_0_1_implicitly_has_an_any_type: { code: 7016, category: ts.DiagnosticCategory.Error, key: "Could_not_find_a_declaration_file_for_module_0_1_implicitly_has_an_any_type_7016", message: "Could not find a declaration file for module '{0}'. '{1}' implicitly has an 'any' type." },
    Element_implicitly_has_an_any_type_because_type_0_has_no_index_signature: { code: 7017, category: ts.DiagnosticCategory.Error, key: "Element_implicitly_has_an_any_type_because_type_0_has_no_index_signature_7017", message: "Element implicitly has an 'any' type because type '{0}' has no index signature." },
    Object_literal_s_property_0_implicitly_has_an_1_type: { code: 7018, category: ts.DiagnosticCategory.Error, key: "Object_literal_s_property_0_implicitly_has_an_1_type_7018", message: "Object literal's property '{0}' implicitly has an '{1}' type." },
    Rest_parameter_0_implicitly_has_an_any_type: { code: 7019, category: ts.DiagnosticCategory.Error, key: "Rest_parameter_0_implicitly_has_an_any_type_7019", message: "Rest parameter '{0}' implicitly has an 'any[]' type." },
    Call_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type: { code: 7020, category: ts.DiagnosticCategory.Error, key: "Call_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type_7020", message: "Call signature, which lacks return-type annotation, implicitly has an 'any' return type." },
    _0_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_and_is_referenced_directly_or_indirectly_in_its_own_initializer: { code: 7022, category: ts.DiagnosticCategory.Error, key: "_0_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_and_is_referenced_directly_or__7022", message: "'{0}' implicitly has type 'any' because it does not have a type annotation and is referenced directly or indirectly in its own initializer." },
    _0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions: { code: 7023, category: ts.DiagnosticCategory.Error, key: "_0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_reference_7023", message: "'{0}' implicitly has return type 'any' because it does not have a return type annotation and is referenced directly or indirectly in one of its return expressions." },
    Function_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions: { code: 7024, category: ts.DiagnosticCategory.Error, key: "Function_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_ref_7024", message: "Function implicitly has return type 'any' because it does not have a return type annotation and is referenced directly or indirectly in one of its return expressions." },
    Generator_implicitly_has_type_0_because_it_does_not_yield_any_values_Consider_supplying_a_return_type: { code: 7025, category: ts.DiagnosticCategory.Error, key: "Generator_implicitly_has_type_0_because_it_does_not_yield_any_values_Consider_supplying_a_return_typ_7025", message: "Generator implicitly has type '{0}' because it does not yield any values. Consider supplying a return type." },
    JSX_element_implicitly_has_type_any_because_no_interface_JSX_0_exists: { code: 7026, category: ts.DiagnosticCategory.Error, key: "JSX_element_implicitly_has_type_any_because_no_interface_JSX_0_exists_7026", message: "JSX element implicitly has type 'any' because no interface 'JSX.{0}' exists" },
    Unreachable_code_detected: { code: 7027, category: ts.DiagnosticCategory.Error, key: "Unreachable_code_detected_7027", message: "Unreachable code detected." },
    Unused_label: { code: 7028, category: ts.DiagnosticCategory.Error, key: "Unused_label_7028", message: "Unused label." },
    Fallthrough_case_in_switch: { code: 7029, category: ts.DiagnosticCategory.Error, key: "Fallthrough_case_in_switch_7029", message: "Fallthrough case in switch." },
    Not_all_code_paths_return_a_value: { code: 7030, category: ts.DiagnosticCategory.Error, key: "Not_all_code_paths_return_a_value_7030", message: "Not all code paths return a value." },
    Binding_element_0_implicitly_has_an_1_type: { code: 7031, category: ts.DiagnosticCategory.Error, key: "Binding_element_0_implicitly_has_an_1_type_7031", message: "Binding element '{0}' implicitly has an '{1}' type." },
    Property_0_implicitly_has_type_any_because_its_set_accessor_lacks_a_parameter_type_annotation: { code: 7032, category: ts.DiagnosticCategory.Error, key: "Property_0_implicitly_has_type_any_because_its_set_accessor_lacks_a_parameter_type_annotation_7032", message: "Property '{0}' implicitly has type 'any', because its set accessor lacks a parameter type annotation." },
    Property_0_implicitly_has_type_any_because_its_get_accessor_lacks_a_return_type_annotation: { code: 7033, category: ts.DiagnosticCategory.Error, key: "Property_0_implicitly_has_type_any_because_its_get_accessor_lacks_a_return_type_annotation_7033", message: "Property '{0}' implicitly has type 'any', because its get accessor lacks a return type annotation." },
    Variable_0_implicitly_has_type_1_in_some_locations_where_its_type_cannot_be_determined: { code: 7034, category: ts.DiagnosticCategory.Error, key: "Variable_0_implicitly_has_type_1_in_some_locations_where_its_type_cannot_be_determined_7034", message: "Variable '{0}' implicitly has type '{1}' in some locations where its type cannot be determined." },
    You_cannot_rename_this_element: { code: 8000, category: ts.DiagnosticCategory.Error, key: "You_cannot_rename_this_element_8000", message: "You cannot rename this element." },
    You_cannot_rename_elements_that_are_defined_in_the_standard_TypeScript_library: { code: 8001, category: ts.DiagnosticCategory.Error, key: "You_cannot_rename_elements_that_are_defined_in_the_standard_TypeScript_library_8001", message: "You cannot rename elements that are defined in the standard TypeScript library." },
    import_can_only_be_used_in_a_ts_file: { code: 8002, category: ts.DiagnosticCategory.Error, key: "import_can_only_be_used_in_a_ts_file_8002", message: "'import ... =' can only be used in a .ts file." },
    export_can_only_be_used_in_a_ts_file: { code: 8003, category: ts.DiagnosticCategory.Error, key: "export_can_only_be_used_in_a_ts_file_8003", message: "'export=' can only be used in a .ts file." },
    type_parameter_declarations_can_only_be_used_in_a_ts_file: { code: 8004, category: ts.DiagnosticCategory.Error, key: "type_parameter_declarations_can_only_be_used_in_a_ts_file_8004", message: "'type parameter declarations' can only be used in a .ts file." },
    implements_clauses_can_only_be_used_in_a_ts_file: { code: 8005, category: ts.DiagnosticCategory.Error, key: "implements_clauses_can_only_be_used_in_a_ts_file_8005", message: "'implements clauses' can only be used in a .ts file." },
    interface_declarations_can_only_be_used_in_a_ts_file: { code: 8006, category: ts.DiagnosticCategory.Error, key: "interface_declarations_can_only_be_used_in_a_ts_file_8006", message: "'interface declarations' can only be used in a .ts file." },
    module_declarations_can_only_be_used_in_a_ts_file: { code: 8007, category: ts.DiagnosticCategory.Error, key: "module_declarations_can_only_be_used_in_a_ts_file_8007", message: "'module declarations' can only be used in a .ts file." },
    type_aliases_can_only_be_used_in_a_ts_file: { code: 8008, category: ts.DiagnosticCategory.Error, key: "type_aliases_can_only_be_used_in_a_ts_file_8008", message: "'type aliases' can only be used in a .ts file." },
    _0_can_only_be_used_in_a_ts_file: { code: 8009, category: ts.DiagnosticCategory.Error, key: "_0_can_only_be_used_in_a_ts_file_8009", message: "'{0}' can only be used in a .ts file." },
    types_can_only_be_used_in_a_ts_file: { code: 8010, category: ts.DiagnosticCategory.Error, key: "types_can_only_be_used_in_a_ts_file_8010", message: "'types' can only be used in a .ts file." },
    type_arguments_can_only_be_used_in_a_ts_file: { code: 8011, category: ts.DiagnosticCategory.Error, key: "type_arguments_can_only_be_used_in_a_ts_file_8011", message: "'type arguments' can only be used in a .ts file." },
    parameter_modifiers_can_only_be_used_in_a_ts_file: { code: 8012, category: ts.DiagnosticCategory.Error, key: "parameter_modifiers_can_only_be_used_in_a_ts_file_8012", message: "'parameter modifiers' can only be used in a .ts file." },
    enum_declarations_can_only_be_used_in_a_ts_file: { code: 8015, category: ts.DiagnosticCategory.Error, key: "enum_declarations_can_only_be_used_in_a_ts_file_8015", message: "'enum declarations' can only be used in a .ts file." },
    type_assertion_expressions_can_only_be_used_in_a_ts_file: { code: 8016, category: ts.DiagnosticCategory.Error, key: "type_assertion_expressions_can_only_be_used_in_a_ts_file_8016", message: "'type assertion expressions' can only be used in a .ts file." },
    Only_identifiers_Slashqualified_names_with_optional_type_arguments_are_currently_supported_in_a_class_extends_clauses: { code: 9002, category: ts.DiagnosticCategory.Error, key: "Only_identifiers_Slashqualified_names_with_optional_type_arguments_are_currently_supported_in_a_clas_9002", message: "Only identifiers/qualified-names with optional type arguments are currently supported in a class 'extends' clauses." },
    class_expressions_are_not_currently_supported: { code: 9003, category: ts.DiagnosticCategory.Error, key: "class_expressions_are_not_currently_supported_9003", message: "'class' expressions are not currently supported." },
    Language_service_is_disabled: { code: 9004, category: ts.DiagnosticCategory.Error, key: "Language_service_is_disabled_9004", message: "Language service is disabled." },
    JSX_attributes_must_only_be_assigned_a_non_empty_expression: { code: 17000, category: ts.DiagnosticCategory.Error, key: "JSX_attributes_must_only_be_assigned_a_non_empty_expression_17000", message: "JSX attributes must only be assigned a non-empty 'expression'." },
    JSX_elements_cannot_have_multiple_attributes_with_the_same_name: { code: 17001, category: ts.DiagnosticCategory.Error, key: "JSX_elements_cannot_have_multiple_attributes_with_the_same_name_17001", message: "JSX elements cannot have multiple attributes with the same name." },
    Expected_corresponding_JSX_closing_tag_for_0: { code: 17002, category: ts.DiagnosticCategory.Error, key: "Expected_corresponding_JSX_closing_tag_for_0_17002", message: "Expected corresponding JSX closing tag for '{0}'." },
    JSX_attribute_expected: { code: 17003, category: ts.DiagnosticCategory.Error, key: "JSX_attribute_expected_17003", message: "JSX attribute expected." },
    Cannot_use_JSX_unless_the_jsx_flag_is_provided: { code: 17004, category: ts.DiagnosticCategory.Error, key: "Cannot_use_JSX_unless_the_jsx_flag_is_provided_17004", message: "Cannot use JSX unless the '--jsx' flag is provided." },
    A_constructor_cannot_contain_a_super_call_when_its_class_extends_null: { code: 17005, category: ts.DiagnosticCategory.Error, key: "A_constructor_cannot_contain_a_super_call_when_its_class_extends_null_17005", message: "A constructor cannot contain a 'super' call when its class extends 'null'" },
    An_unary_expression_with_the_0_operator_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: { code: 17006, category: ts.DiagnosticCategory.Error, key: "An_unary_expression_with_the_0_operator_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_ex_17006", message: "An unary expression with the '{0}' operator is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses." },
    A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: { code: 17007, category: ts.DiagnosticCategory.Error, key: "A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Con_17007", message: "A type assertion expression is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses." },
    JSX_element_0_has_no_corresponding_closing_tag: { code: 17008, category: ts.DiagnosticCategory.Error, key: "JSX_element_0_has_no_corresponding_closing_tag_17008", message: "JSX element '{0}' has no corresponding closing tag." },
    super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class: { code: 17009, category: ts.DiagnosticCategory.Error, key: "super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class_17009", message: "'super' must be called before accessing 'this' in the constructor of a derived class." },
    Unknown_type_acquisition_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_type_acquisition_option_0_17010", message: "Unknown type acquisition option '{0}'." },
    super_must_be_called_before_accessing_a_property_of_super_in_the_constructor_of_a_derived_class: { code: 17011, category: ts.DiagnosticCategory.Error, key: "super_must_be_called_before_accessing_a_property_of_super_in_the_constructor_of_a_derived_class_17011", message: "'super' must be called before accessing a property of 'super' in the constructor of a derived class." },
    Circularity_detected_while_resolving_configuration_Colon_0: { code: 18000, category: ts.DiagnosticCategory.Error, key: "Circularity_detected_while_resolving_configuration_Colon_0_18000", message: "Circularity detected while resolving configuration: {0}" },
    A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not: { code: 18001, category: ts.DiagnosticCategory.Error, key: "A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not_18001", message: "A path in an 'extends' option must be relative or rooted, but '{0}' is not." },
    The_files_list_in_config_file_0_is_empty: { code: 18002, category: ts.DiagnosticCategory.Error, key: "The_files_list_in_config_file_0_is_empty_18002", message: "The 'files' list in config file '{0}' is empty." },
    No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2: { code: 18003, category: ts.DiagnosticCategory.Error, key: "No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2_18003", message: "No inputs were found in config file '{0}'. Specified 'include' paths were '{1}' and 'exclude' paths were '{2}'." },
    Add_missing_super_call: { code: 90001, category: ts.DiagnosticCategory.Message, key: "Add_missing_super_call_90001", message: "Add missing 'super()' call." },
    Make_super_call_the_first_statement_in_the_constructor: { code: 90002, category: ts.DiagnosticCategory.Message, key: "Make_super_call_the_first_statement_in_the_constructor_90002", message: "Make 'super()' call the first statement in the constructor." },
    Change_extends_to_implements: { code: 90003, category: ts.DiagnosticCategory.Message, key: "Change_extends_to_implements_90003", message: "Change 'extends' to 'implements'" },
    Remove_unused_identifiers: { code: 90004, category: ts.DiagnosticCategory.Message, key: "Remove_unused_identifiers_90004", message: "Remove unused identifiers" },
    Implement_interface_on_reference: { code: 90005, category: ts.DiagnosticCategory.Message, key: "Implement_interface_on_reference_90005", message: "Implement interface on reference" },
    Implement_interface_on_class: { code: 90006, category: ts.DiagnosticCategory.Message, key: "Implement_interface_on_class_90006", message: "Implement interface on class" },
    Implement_inherited_abstract_class: { code: 90007, category: ts.DiagnosticCategory.Message, key: "Implement_inherited_abstract_class_90007", message: "Implement inherited abstract class" },
    Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript_files_Learn_more_at_https_Colon_Slash_Slashaka_ms_Slashtsconfig: { code: 90009, category: ts.DiagnosticCategory.Error, key: "Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript__90009", message: "Adding a tsconfig.json file will help organize projects that contain both TypeScript and JavaScript files. Learn more at https://aka.ms/tsconfig" },
    Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated: { code: 90010, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated_90010", message: "Type '{0}' is not assignable to type '{1}'. Two different types with this name exist, but they are unrelated." },
    Import_0_from_1: { code: 90013, category: ts.DiagnosticCategory.Message, key: "Import_0_from_1_90013", message: "Import {0} from {1}" },
    Change_0_to_1: { code: 90014, category: ts.DiagnosticCategory.Message, key: "Change_0_to_1_90014", message: "Change {0} to {1}" },
    Add_0_to_existing_import_declaration_from_1: { code: 90015, category: ts.DiagnosticCategory.Message, key: "Add_0_to_existing_import_declaration_from_1_90015", message: "Add {0} to existing import declaration from {1}" },
    Octal_literal_types_must_use_ES2015_syntax_Use_the_syntax_0: { code: 8017, category: ts.DiagnosticCategory.Error, key: "Octal_literal_types_must_use_ES2015_syntax_Use_the_syntax_0_8017", message: "Octal literal types must use ES2015 syntax. Use the syntax '{0}'." },
};

})(ts || (ts = {})); var ts; (function (ts) {

function tokenIsIdentifierOrKeyword(token) {
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}
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    "this": 98,
    "throw": 99,
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    "await": 120,
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11694, 11696, 11702, 11704, 11710, 11712, 11718, 11720, 11726, 11728, 11734, 11736, 11742, 11744, 11775, 11823, 11823, 12293, 12295, 12321, 12335, 12337, 12341, 12344, 12348, 12353, 12438, 12441, 12442, 12445, 12447, 12449, 12538, 12540, 12543, 12549, 12589, 12593, 12686, 12704, 12730, 12784, 12799, 13312, 19893, 19968, 40908, 40960, 42124, 42192, 42237, 42240, 42508, 42512, 42539, 42560, 42607, 42612, 42621, 42623, 42647, 42655, 42737, 42775, 42783, 42786, 42888, 42891, 42894, 42896, 42899, 42912, 42922, 43000, 43047, 43072, 43123, 43136, 43204, 43216, 43225, 43232, 43255, 43259, 43259, 43264, 43309, 43312, 43347, 43360, 43388, 43392, 43456, 43471, 43481, 43520, 43574, 43584, 43597, 43600, 43609, 43616, 43638, 43642, 43643, 43648, 43714, 43739, 43741, 43744, 43759, 43762, 43766, 43777, 43782, 43785, 43790, 43793, 43798, 43808, 43814, 43816, 43822, 43968, 44010, 44012, 44013, 44016, 44025, 44032, 55203, 55216, 55238, 55243, 55291, 63744, 64109, 64112, 64217, 64256, 64262, 64275, 64279, 64285, 64296, 64298, 64310, 64312, 64316, 64318, 64318, 64320, 64321, 64323, 64324, 64326, 64433, 64467, 64829, 64848, 64911, 64914, 64967, 65008, 65019, 65024, 65039, 65056, 65062, 65075, 65076, 65101, 65103, 65136, 65140, 65142, 65276, 65296, 65305, 65313, 65338, 65343, 65343, 65345, 65370, 65382, 65470, 65474, 65479, 65482, 65487, 65490, 65495, 65498, 65500,];
function lookupInUnicodeMap(code, map) {
    if (code < map[0]) {
        return false;
    }
    var lo = 0;
    var hi = map.length;
    var mid;
    while (lo + 1 < hi) {
        mid = lo + (hi - lo) / 2;
        mid -= mid % 2;
        if (map[mid] <= code && code <= map[mid + 1]) {
            return true;
        }
        if (code < map[mid]) {
            hi = mid;
        }
        else {
            lo = mid + 2;
        }
    }
    return false;
}
function isUnicodeIdentifierStart(code, languageVersion) {
    return languageVersion >= 1 ?
        lookupInUnicodeMap(code, unicodeES5IdentifierStart) :
        lookupInUnicodeMap(code, unicodeES3IdentifierStart);
}
ts.isUnicodeIdentifierStart = isUnicodeIdentifierStart;
function isUnicodeIdentifierPart(code, languageVersion) {
    return languageVersion >= 1 ?
        lookupInUnicodeMap(code, unicodeES5IdentifierPart) :
        lookupInUnicodeMap(code, unicodeES3IdentifierPart);
}
function makeReverseMap(source) {
    var result = [];
    for (var name_4 in source) {
        result[source[name_4]] = name_4;
    }
    return result;
}
var tokenStrings = makeReverseMap(textToToken);
function tokenToString(t) {
    return tokenStrings[t];
}
ts.tokenToString = tokenToString;
function stringToToken(s) {
    return textToToken[s];
}
ts.stringToToken = stringToToken;
function computeLineStarts(text) {
    var result = new Array();
    var pos = 0;
    var lineStart = 0;
    while (pos < text.length) {
        var ch = text.charCodeAt(pos);
        pos++;
        switch (ch) {
            case 13:
                if (text.charCodeAt(pos) === 10) {
                    pos++;
                }
            case 10:
                result.push(lineStart);
                lineStart = pos;
                break;
            default:
                if (ch > 127 && isLineBreak(ch)) {
                    result.push(lineStart);
                    lineStart = pos;
                }
                break;
        }
    }
    result.push(lineStart);
    return result;
}
ts.computeLineStarts = computeLineStarts;
function getPositionOfLineAndCharacter(sourceFile, line, character) {
    return computePositionOfLineAndCharacter(getLineStarts(sourceFile), line, character);
}
ts.getPositionOfLineAndCharacter = getPositionOfLineAndCharacter;
function computePositionOfLineAndCharacter(lineStarts, line, character) {
    ts.Debug.assert(line >= 0 && line < lineStarts.length);
    return lineStarts[line] + character;
}
ts.computePositionOfLineAndCharacter = computePositionOfLineAndCharacter;
function getLineStarts(sourceFile) {
    return sourceFile.lineMap || (sourceFile.lineMap = computeLineStarts(sourceFile.text));
}
ts.getLineStarts = getLineStarts;
function computeLineAndCharacterOfPosition(lineStarts, position) {
    var lineNumber = ts.binarySearch(lineStarts, position);
    if (lineNumber < 0) {
        lineNumber = ~lineNumber - 1;
        ts.Debug.assert(lineNumber !== -1, "position cannot precede the beginning of the file");
    }
    return {
        line: lineNumber,
        character: position - lineStarts[lineNumber]
    };
}
ts.computeLineAndCharacterOfPosition = computeLineAndCharacterOfPosition;
function getLineAndCharacterOfPosition(sourceFile, position) {
    return computeLineAndCharacterOfPosition(getLineStarts(sourceFile), position);
}
ts.getLineAndCharacterOfPosition = getLineAndCharacterOfPosition;
var hasOwnProperty = Object.prototype.hasOwnProperty;
function isWhiteSpace(ch) {
    return isWhiteSpaceSingleLine(ch) || isLineBreak(ch);
}
ts.isWhiteSpace = isWhiteSpace;
function isWhiteSpaceSingleLine(ch) {
    return ch === 32 ||
        ch === 9 ||
        ch === 11 ||
        ch === 12 ||
        ch === 160 ||
        ch === 133 ||
        ch === 5760 ||
        ch >= 8192 && ch <= 8203 ||
        ch === 8239 ||
        ch === 8287 ||
        ch === 12288 ||
        ch === 65279;
}
ts.isWhiteSpaceSingleLine = isWhiteSpaceSingleLine;
function isLineBreak(ch) {
    return ch === 10 ||
        ch === 13 ||
        ch === 8232 ||
        ch === 8233;
}
ts.isLineBreak = isLineBreak;
function isDigit(ch) {
    return ch >= 48 && ch <= 57;
}
function isOctalDigit(ch) {
    return ch >= 48 && ch <= 55;
}
ts.isOctalDigit = isOctalDigit;
function couldStartTrivia(text, pos) {
    var ch = text.charCodeAt(pos);
    switch (ch) {
        case 13:
        case 10:
        case 9:
        case 11:
        case 12:
        case 32:
        case 47:
        case 60:
        case 61:
        case 62:
            return true;
        case 35:
            return pos === 0;
        default:
            return ch > 127;
    }
}
ts.couldStartTrivia = couldStartTrivia;
function skipTrivia(text, pos, stopAfterLineBreak, stopAtComments) {
    if (stopAtComments === void 0) { stopAtComments = false; }
    if (ts.positionIsSynthesized(pos)) {
        return pos;
    }
    while (true) {
        var ch = text.charCodeAt(pos);
        switch (ch) {
            case 13:
                if (text.charCodeAt(pos + 1) === 10) {
                    pos++;
                }
            case 10:
                pos++;
                if (stopAfterLineBreak) {
                    return pos;
                }
                continue;
            case 9:
            case 11:
            case 12:
            case 32:
                pos++;
                continue;
            case 47:
                if (stopAtComments) {
                    break;
                }
                if (text.charCodeAt(pos + 1) === 47) {
                    pos += 2;
                    while (pos < text.length) {
                        if (isLineBreak(text.charCodeAt(pos))) {
                            break;
                        }
                        pos++;
                    }
                    continue;
                }
                if (text.charCodeAt(pos + 1) === 42) {
                    pos += 2;
                    while (pos < text.length) {
                        if (text.charCodeAt(pos) === 42 && text.charCodeAt(pos + 1) === 47) {
                            pos += 2;
                            break;
                        }
                        pos++;
                    }
                    continue;
                }
                break;
            case 60:
            case 61:
            case 62:
                if (isConflictMarkerTrivia(text, pos)) {
                    pos = scanConflictMarkerTrivia(text, pos);
                    continue;
                }
                break;
            case 35:
                if (pos === 0 && isShebangTrivia(text, pos)) {
                    pos = scanShebangTrivia(text, pos);
                    continue;
                }
                break;
            default:
                if (ch > 127 && (isWhiteSpace(ch))) {
                    pos++;
                    continue;
                }
                break;
        }
        return pos;
    }
}
ts.skipTrivia = skipTrivia;
var mergeConflictMarkerLength = "<<<<<<<".length;
function isConflictMarkerTrivia(text, pos) {
    ts.Debug.assert(pos >= 0);
    if (pos === 0 || isLineBreak(text.charCodeAt(pos - 1))) {
        var ch = text.charCodeAt(pos);
        if ((pos + mergeConflictMarkerLength) < text.length) {
            for (var i = 0, n = mergeConflictMarkerLength; i < n; i++) {
                if (text.charCodeAt(pos + i) !== ch) {
                    return false;
                }
            }
            return ch === 61 ||
                text.charCodeAt(pos + mergeConflictMarkerLength) === 32;
        }
    }
    return false;
}
function scanConflictMarkerTrivia(text, pos, error) {
    if (error) {
        error(ts.Diagnostics.Merge_conflict_marker_encountered, mergeConflictMarkerLength);
    }
    var ch = text.charCodeAt(pos);
    var len = text.length;
    if (ch === 60 || ch === 62) {
        while (pos < len && !isLineBreak(text.charCodeAt(pos))) {
            pos++;
        }
    }
    else {
        ts.Debug.assert(ch === 61);
        while (pos < len) {
            var ch_1 = text.charCodeAt(pos);
            if (ch_1 === 62 && isConflictMarkerTrivia(text, pos)) {
                break;
            }
            pos++;
        }
    }
    return pos;
}
var shebangTriviaRegex = /^#!.*/;
function isShebangTrivia(text, pos) {
    ts.Debug.assert(pos === 0);
    return shebangTriviaRegex.test(text);
}
function scanShebangTrivia(text, pos) {
    var shebang = shebangTriviaRegex.exec(text)[0];
    pos = pos + shebang.length;
    return pos;
}
function iterateCommentRanges(reduce, text, pos, trailing, cb, state, initial) {
    var pendingPos;
    var pendingEnd;
    var pendingKind;
    var pendingHasTrailingNewLine;
    var hasPendingCommentRange = false;
    var collecting = trailing || pos === 0;
    var accumulator = initial;
    scan: while (pos >= 0 && pos < text.length) {
        var ch = text.charCodeAt(pos);
        switch (ch) {
            case 13:
                if (text.charCodeAt(pos + 1) === 10) {
                    pos++;
                }
            case 10:
                pos++;
                if (trailing) {
                    break scan;
                }
                collecting = true;
                if (hasPendingCommentRange) {
                    pendingHasTrailingNewLine = true;
                }
                continue;
            case 9:
            case 11:
            case 12:
            case 32:
                pos++;
                continue;
            case 47:
                var nextChar = text.charCodeAt(pos + 1);
                var hasTrailingNewLine = false;
                if (nextChar === 47 || nextChar === 42) {
                    var kind = nextChar === 47 ? 2 : 3;
                    var startPos = pos;
                    pos += 2;
                    if (nextChar === 47) {
                        while (pos < text.length) {
                            if (isLineBreak(text.charCodeAt(pos))) {
                                hasTrailingNewLine = true;
                                break;
                            }
                            pos++;
                        }
                    }
                    else {
                        while (pos < text.length) {
                            if (text.charCodeAt(pos) === 42 && text.charCodeAt(pos + 1) === 47) {
                                pos += 2;
                                break;
                            }
                            pos++;
                        }
                    }
                    if (collecting) {
                        if (hasPendingCommentRange) {
                            accumulator = cb(pendingPos, pendingEnd, pendingKind, pendingHasTrailingNewLine, state, accumulator);
                            if (!reduce && accumulator) {
                                return accumulator;
                            }
                            hasPendingCommentRange = false;
                        }
                        pendingPos = startPos;
                        pendingEnd = pos;
                        pendingKind = kind;
                        pendingHasTrailingNewLine = hasTrailingNewLine;
                        hasPendingCommentRange = true;
                    }
                    continue;
                }
                break scan;
            default:
                if (ch > 127 && (isWhiteSpace(ch))) {
                    if (hasPendingCommentRange && isLineBreak(ch)) {
                        pendingHasTrailingNewLine = true;
                    }
                    pos++;
                    continue;
                }
                break scan;
        }
    }
    if (hasPendingCommentRange) {
        accumulator = cb(pendingPos, pendingEnd, pendingKind, pendingHasTrailingNewLine, state, accumulator);
    }
    return accumulator;
}
function forEachLeadingCommentRange(text, pos, cb, state) {
    return iterateCommentRanges(false, text, pos, false, cb, state);
}
ts.forEachLeadingCommentRange = forEachLeadingCommentRange;
function forEachTrailingCommentRange(text, pos, cb, state) {
    return iterateCommentRanges(false, text, pos, true, cb, state);
}
ts.forEachTrailingCommentRange = forEachTrailingCommentRange;
function reduceEachLeadingCommentRange(text, pos, cb, state, initial) {
    return iterateCommentRanges(true, text, pos, false, cb, state, initial);
}
ts.reduceEachLeadingCommentRange = reduceEachLeadingCommentRange;
function reduceEachTrailingCommentRange(text, pos, cb, state, initial) {
    return iterateCommentRanges(true, text, pos, true, cb, state, initial);
}
ts.reduceEachTrailingCommentRange = reduceEachTrailingCommentRange;
function appendCommentRange(pos, end, kind, hasTrailingNewLine, _state, comments) {
    if (!comments) {
        comments = [];
    }
    comments.push({ pos: pos, end: end, hasTrailingNewLine: hasTrailingNewLine, kind: kind });
    return comments;
}
function getLeadingCommentRanges(text, pos) {
    return reduceEachLeadingCommentRange(text, pos, appendCommentRange, undefined, undefined);
}
ts.getLeadingCommentRanges = getLeadingCommentRanges;
function getTrailingCommentRanges(text, pos) {
    return reduceEachTrailingCommentRange(text, pos, appendCommentRange, undefined, undefined);
}
ts.getTrailingCommentRanges = getTrailingCommentRanges;
function getShebang(text) {
    return shebangTriviaRegex.test(text)
        ? shebangTriviaRegex.exec(text)[0]
        : undefined;
}
ts.getShebang = getShebang;
function isIdentifierStart(ch, languageVersion) {
    return ch >= 65 && ch <= 90 || ch >= 97 && ch <= 122 ||
        ch === 36 || ch === 95 ||
        ch > 127 && isUnicodeIdentifierStart(ch, languageVersion);
}
ts.isIdentifierStart = isIdentifierStart;
function isIdentifierPart(ch, languageVersion) {
    return ch >= 65 && ch <= 90 || ch >= 97 && ch <= 122 ||
        ch >= 48 && ch <= 57 || ch === 36 || ch === 95 ||
        ch > 127 && isUnicodeIdentifierPart(ch, languageVersion);
}
ts.isIdentifierPart = isIdentifierPart;
function isIdentifierText(name, languageVersion) {
    if (!isIdentifierStart(name.charCodeAt(0), languageVersion)) {
        return false;
    }
    for (var i = 1, n = name.length; i < n; i++) {
        if (!isIdentifierPart(name.charCodeAt(i), languageVersion)) {
            return false;
        }
    }
    return true;
}
ts.isIdentifierText = isIdentifierText;
function createScanner(languageVersion, skipTrivia, languageVariant, text, onError, start, length) {
    if (languageVariant === void 0) { languageVariant = 0; }
    var pos;
    var end;
    var startPos;
    var tokenPos;
    var token;
    var tokenValue;
    var precedingLineBreak;
    var hasExtendedUnicodeEscape;
    var tokenIsUnterminated;
    setText(text, start, length);
    return {
        getStartPos: function () { return startPos; },
        getTextPos: function () { return pos; },
        getToken: function () { return token; },
        getTokenPos: function () { return tokenPos; },
        getTokenText: function () { return text.substring(tokenPos, pos); },
        getTokenValue: function () { return tokenValue; },
        hasExtendedUnicodeEscape: function () { return hasExtendedUnicodeEscape; },
        hasPrecedingLineBreak: function () { return precedingLineBreak; },
        isIdentifier: function () { return token === 70 || token > 106; },
        isReservedWord: function () { return token >= 71 && token <= 106; },
        isUnterminated: function () { return tokenIsUnterminated; },
        reScanGreaterToken: reScanGreaterToken,
        reScanSlashToken: reScanSlashToken,
        reScanTemplateToken: reScanTemplateToken,
        scanJsxIdentifier: scanJsxIdentifier,
        scanJsxAttributeValue: scanJsxAttributeValue,
        reScanJsxToken: reScanJsxToken,
        scanJsxToken: scanJsxToken,
        scanJSDocToken: scanJSDocToken,
        scan: scan,
        getText: getText,
        setText: setText,
        setScriptTarget: setScriptTarget,
        setLanguageVariant: setLanguageVariant,
        setOnError: setOnError,
        setTextPos: setTextPos,
        tryScan: tryScan,
        lookAhead: lookAhead,
        scanRange: scanRange,
    };
    function error(message, length) {
        if (onError) {
            onError(message, length || 0);
        }
    }
    function scanNumber() {
        var start = pos;
        while (isDigit(text.charCodeAt(pos)))
            pos++;
        if (text.charCodeAt(pos) === 46) {
            pos++;
            while (isDigit(text.charCodeAt(pos)))
                pos++;
        }
        var end = pos;
        if (text.charCodeAt(pos) === 69 || text.charCodeAt(pos) === 101) {
            pos++;
            if (text.charCodeAt(pos) === 43 || text.charCodeAt(pos) === 45)
                pos++;
            if (isDigit(text.charCodeAt(pos))) {
                pos++;
                while (isDigit(text.charCodeAt(pos)))
                    pos++;
                end = pos;
            }
            else {
                error(ts.Diagnostics.Digit_expected);
            }
        }
        return "" + +(text.substring(start, end));
    }
    function scanOctalDigits() {
        var start = pos;
        while (isOctalDigit(text.charCodeAt(pos))) {
            pos++;
        }
        return +(text.substring(start, pos));
    }
    function scanExactNumberOfHexDigits(count) {
        return scanHexDigits(count, false);
    }
    function scanMinimumNumberOfHexDigits(count) {
        return scanHexDigits(count, true);
    }
    function scanHexDigits(minCount, scanAsManyAsPossible) {
        var digits = 0;
        var value = 0;
        while (digits < minCount || scanAsManyAsPossible) {
            var ch = text.charCodeAt(pos);
            if (ch >= 48 && ch <= 57) {
                value = value * 16 + ch - 48;
            }
            else if (ch >= 65 && ch <= 70) {
                value = value * 16 + ch - 65 + 10;
            }
            else if (ch >= 97 && ch <= 102) {
                value = value * 16 + ch - 97 + 10;
            }
            else {
                break;
            }
            pos++;
            digits++;
        }
        if (digits < minCount) {
            value = -1;
        }
        return value;
    }
    function scanString(allowEscapes) {
        if (allowEscapes === void 0) { allowEscapes = true; }
        var quote = text.charCodeAt(pos);
        pos++;
        var result = "";
        var start = pos;
        while (true) {
            if (pos >= end) {
                result += text.substring(start, pos);
                tokenIsUnterminated = true;
                error(ts.Diagnostics.Unterminated_string_literal);
                break;
            }
            var ch = text.charCodeAt(pos);
            if (ch === quote) {
                result += text.substring(start, pos);
                pos++;
                break;
            }
            if (ch === 92 && allowEscapes) {
                result += text.substring(start, pos);
                result += scanEscapeSequence();
                start = pos;
                continue;
            }
            if (isLineBreak(ch)) {
                result += text.substring(start, pos);
                tokenIsUnterminated = true;
                error(ts.Diagnostics.Unterminated_string_literal);
                break;
            }
            pos++;
        }
        return result;
    }
    function scanTemplateAndSetTokenValue() {
        var startedWithBacktick = text.charCodeAt(pos) === 96;
        pos++;
        var start = pos;
        var contents = "";
        var resultingToken;
        while (true) {
            if (pos >= end) {
                contents += text.substring(start, pos);
                tokenIsUnterminated = true;
                error(ts.Diagnostics.Unterminated_template_literal);
                resultingToken = startedWithBacktick ? 12 : 15;
                break;
            }
            var currChar = text.charCodeAt(pos);
            if (currChar === 96) {
                contents += text.substring(start, pos);
                pos++;
                resultingToken = startedWithBacktick ? 12 : 15;
                break;
            }
            if (currChar === 36 && pos + 1 < end && text.charCodeAt(pos + 1) === 123) {
                contents += text.substring(start, pos);
                pos += 2;
                resultingToken = startedWithBacktick ? 13 : 14;
                break;
            }
            if (currChar === 92) {
                contents += text.substring(start, pos);
                contents += scanEscapeSequence();
                start = pos;
                continue;
            }
            if (currChar === 13) {
                contents += text.substring(start, pos);
                pos++;
                if (pos < end && text.charCodeAt(pos) === 10) {
                    pos++;
                }
                contents += "\n";
                start = pos;
                continue;
            }
            pos++;
        }
        ts.Debug.assert(resultingToken !== undefined);
        tokenValue = contents;
        return resultingToken;
    }
    function scanEscapeSequence() {
        pos++;
        if (pos >= end) {
            error(ts.Diagnostics.Unexpected_end_of_text);
            return "";
        }
        var ch = text.charCodeAt(pos);
        pos++;
        switch (ch) {
            case 48:
                return "\0";
            case 98:
                return "\b";
            case 116:
                return "\t";
            case 110:
                return "\n";
            case 118:
                return "\v";
            case 102:
                return "\f";
            case 114:
                return "\r";
            case 39:
                return "\'";
            case 34:
                return "\"";
            case 117:
                if (pos < end && text.charCodeAt(pos) === 123) {
                    hasExtendedUnicodeEscape = true;
                    pos++;
                    return scanExtendedUnicodeEscape();
                }
                return scanHexadecimalEscape(4);
            case 120:
                return scanHexadecimalEscape(2);
            case 13:
                if (pos < end && text.charCodeAt(pos) === 10) {
                    pos++;
                }
            case 10:
            case 8232:
            case 8233:
                return "";
            default:
                return String.fromCharCode(ch);
        }
    }
    function scanHexadecimalEscape(numDigits) {
        var escapedValue = scanExactNumberOfHexDigits(numDigits);
        if (escapedValue >= 0) {
            return String.fromCharCode(escapedValue);
        }
        else {
            error(ts.Diagnostics.Hexadecimal_digit_expected);
            return "";
        }
    }
    function scanExtendedUnicodeEscape() {
        var escapedValue = scanMinimumNumberOfHexDigits(1);
        var isInvalidExtendedEscape = false;
        if (escapedValue < 0) {
            error(ts.Diagnostics.Hexadecimal_digit_expected);
            isInvalidExtendedEscape = true;
        }
        else if (escapedValue > 0x10FFFF) {
            error(ts.Diagnostics.An_extended_Unicode_escape_value_must_be_between_0x0_and_0x10FFFF_inclusive);
            isInvalidExtendedEscape = true;
        }
        if (pos >= end) {
            error(ts.Diagnostics.Unexpected_end_of_text);
            isInvalidExtendedEscape = true;
        }
        else if (text.charCodeAt(pos) === 125) {
            pos++;
        }
        else {
            error(ts.Diagnostics.Unterminated_Unicode_escape_sequence);
            isInvalidExtendedEscape = true;
        }
        if (isInvalidExtendedEscape) {
            return "";
        }
        return utf16EncodeAsString(escapedValue);
    }
    function utf16EncodeAsString(codePoint) {
        ts.Debug.assert(0x0 <= codePoint && codePoint <= 0x10FFFF);
        if (codePoint <= 65535) {
            return String.fromCharCode(codePoint);
        }
        var codeUnit1 = Math.floor((codePoint - 65536) / 1024) + 0xD800;
        var codeUnit2 = ((codePoint - 65536) % 1024) + 0xDC00;
        return String.fromCharCode(codeUnit1, codeUnit2);
    }
    function peekUnicodeEscape() {
        if (pos + 5 < end && text.charCodeAt(pos + 1) === 117) {
            var start_1 = pos;
            pos += 2;
            var value = scanExactNumberOfHexDigits(4);
            pos = start_1;
            return value;
        }
        return -1;
    }
    function scanIdentifierParts() {
        var result = "";
        var start = pos;
        while (pos < end) {
            var ch = text.charCodeAt(pos);
            if (isIdentifierPart(ch, languageVersion)) {
                pos++;
            }
            else if (ch === 92) {
                ch = peekUnicodeEscape();
                if (!(ch >= 0 && isIdentifierPart(ch, languageVersion))) {
                    break;
                }
                result += text.substring(start, pos);
                result += String.fromCharCode(ch);
                pos += 6;
                start = pos;
            }
            else {
                break;
            }
        }
        result += text.substring(start, pos);
        return result;
    }
    function getIdentifierToken() {
        var len = tokenValue.length;
        if (len >= 2 && len <= 11) {
            var ch = tokenValue.charCodeAt(0);
            if (ch >= 97 && ch <= 122 && hasOwnProperty.call(textToToken, tokenValue)) {
                return token = textToToken[tokenValue];
            }
        }
        return token = 70;
    }
    function scanBinaryOrOctalDigits(base) {
        ts.Debug.assert(base === 2 || base === 8, "Expected either base 2 or base 8");
        var value = 0;
        var numberOfDigits = 0;
        while (true) {
            var ch = text.charCodeAt(pos);
            var valueOfCh = ch - 48;
            if (!isDigit(ch) || valueOfCh >= base) {
                break;
            }
            value = value * base + valueOfCh;
            pos++;
            numberOfDigits++;
        }
        if (numberOfDigits === 0) {
            return -1;
        }
        return value;
    }
    function scan() {
        startPos = pos;
        hasExtendedUnicodeEscape = false;
        precedingLineBreak = false;
        tokenIsUnterminated = false;
        while (true) {
            tokenPos = pos;
            if (pos >= end) {
                return token = 1;
            }
            var ch = text.charCodeAt(pos);
            if (ch === 35 && pos === 0 && isShebangTrivia(text, pos)) {
                pos = scanShebangTrivia(text, pos);
                if (skipTrivia) {
                    continue;
                }
                else {
                    return token = 6;
                }
            }
            switch (ch) {
                case 10:
                case 13:
                    precedingLineBreak = true;
                    if (skipTrivia) {
                        pos++;
                        continue;
                    }
                    else {
                        if (ch === 13 && pos + 1 < end && text.charCodeAt(pos + 1) === 10) {
                            pos += 2;
                        }
                        else {
                            pos++;
                        }
                        return token = 4;
                    }
                case 9:
                case 11:
                case 12:
                case 32:
                    if (skipTrivia) {
                        pos++;
                        continue;
                    }
                    else {
                        while (pos < end && isWhiteSpaceSingleLine(text.charCodeAt(pos))) {
                            pos++;
                        }
                        return token = 5;
                    }
                case 33:
                    if (text.charCodeAt(pos + 1) === 61) {
                        if (text.charCodeAt(pos + 2) === 61) {
                            return pos += 3, token = 34;
                        }
                        return pos += 2, token = 32;
                    }
                    pos++;
                    return token = 50;
                case 34:
                case 39:
                    tokenValue = scanString();
                    return token = 9;
                case 96:
                    return token = scanTemplateAndSetTokenValue();
                case 37:
                    if (text.charCodeAt(pos + 1) === 61) {
                        return pos += 2, token = 63;
                    }
                    pos++;
                    return token = 41;
                case 38:
                    if (text.charCodeAt(pos + 1) === 38) {
                        return pos += 2, token = 52;
                    }
                    if (text.charCodeAt(pos + 1) === 61) {
                        return pos += 2, token = 67;
                    }
                    pos++;
                    return token = 47;
                case 40:
                    pos++;
                    return token = 18;
                case 41:
                    pos++;
                    return token = 19;
                case 42:
                    if (text.charCodeAt(pos + 1) === 61) {
                        return pos += 2, token = 60;
                    }
                    if (text.charCodeAt(pos + 1) === 42) {
                        if (text.charCodeAt(pos + 2) === 61) {
                            return pos += 3, token = 61;
                        }
                        return pos += 2, token = 39;
                    }
                    pos++;
                    return token = 38;
                case 43:
                    if (text.charCodeAt(pos + 1) === 43) {
                        return pos += 2, token = 42;
                    }
                    if (text.charCodeAt(pos + 1) === 61) {
                        return pos += 2, token = 58;
                    }
                    pos++;
                    return token = 36;
                case 44:
                    pos++;
                    return token = 25;
                case 45:
                    if (text.charCodeAt(pos + 1) === 45) {
                        return pos += 2, token = 43;
                    }
                    if (text.charCodeAt(pos + 1) === 61) {
                        return pos += 2, token = 59;
                    }
                    pos++;
                    return token = 37;
                case 46:
                    if (isDigit(text.charCodeAt(pos + 1))) {
                        tokenValue = scanNumber();
                        return token = 8;
                    }
                    if (text.charCodeAt(pos + 1) === 46 && text.charCodeAt(pos + 2) === 46) {
                        return pos += 3, token = 23;
                    }
                    pos++;
                    return token = 22;
                case 47:
                    if (text.charCodeAt(pos + 1) === 47) {
                        pos += 2;
                        while (pos < end) {
                            if (isLineBreak(text.charCodeAt(pos))) {
                                break;
                            }
                            pos++;
                        }
                        if (skipTrivia) {
                            continue;
                        }
                        else {
                            return token = 2;
                        }
                    }
                    if (text.charCodeAt(pos + 1) === 42) {
                        pos += 2;
                        var commentClosed = false;
                        while (pos < end) {
                            var ch_2 = text.charCodeAt(pos);
                            if (ch_2 === 42 && text.charCodeAt(pos + 1) === 47) {
                                pos += 2;
                                commentClosed = true;
                                break;
                            }
                            if (isLineBreak(ch_2)) {
                                precedingLineBreak = true;
                            }
                            pos++;
                        }
                        if (!commentClosed) {
                            error(ts.Diagnostics.Asterisk_Slash_expected);
                        }
                        if (skipTrivia) {
                            continue;
                        }
                        else {
                            tokenIsUnterminated = !commentClosed;
                            return token = 3;
                        }
                    }
                    if (text.charCodeAt(pos + 1) === 61) {
                        return pos += 2, token = 62;
                    }
                    pos++;
                    return token = 40;
                case 48:
                    if (pos + 2 < end && (text.charCodeAt(pos + 1) === 88 || text.charCodeAt(pos + 1) === 120)) {
                        pos += 2;
                        var value = scanMinimumNumberOfHexDigits(1);
                        if (value < 0) {
                            error(ts.Diagnostics.Hexadecimal_digit_expected);
                            value = 0;
                        }
                        tokenValue = "" + value;
                        return token = 8;
                    }
                    else if (pos + 2 < end && (text.charCodeAt(pos + 1) === 66 || text.charCodeAt(pos + 1) === 98)) {
                        pos += 2;
                        var value = scanBinaryOrOctalDigits(2);
                        if (value < 0) {
                            error(ts.Diagnostics.Binary_digit_expected);
                            value = 0;
                        }
                        tokenValue = "" + value;
                        return token = 8;
                    }
                    else if (pos + 2 < end && (text.charCodeAt(pos + 1) === 79 || text.charCodeAt(pos + 1) === 111)) {
                        pos += 2;
                        var value = scanBinaryOrOctalDigits(8);
                        if (value < 0) {
                            error(ts.Diagnostics.Octal_digit_expected);
                            value = 0;
                        }
                        tokenValue = "" + value;
                        return token = 8;
                    }
                    if (pos + 1 < end && isOctalDigit(text.charCodeAt(pos + 1))) {
                        tokenValue = "" + scanOctalDigits();
                        return token = 8;
                    }
                case 49:
                case 50:
                case 51:
                case 52:
                case 53:
                case 54:
                case 55:
                case 56:
                case 57:
                    tokenValue = scanNumber();
                    return token = 8;
                case 58:
                    pos++;
                    return token = 55;
                case 59:
                    pos++;
                    return token = 24;
                case 60:
                    if (isConflictMarkerTrivia(text, pos)) {
                        pos = scanConflictMarkerTrivia(text, pos, error);
                        if (skipTrivia) {
                            continue;
                        }
                        else {
                            return token = 7;
                        }
                    }
                    if (text.charCodeAt(pos + 1) === 60) {
                        if (text.charCodeAt(pos + 2) === 61) {
                            return pos += 3, token = 64;
                        }
                        return pos += 2, token = 44;
                    }
                    if (text.charCodeAt(pos + 1) === 61) {
                        return pos += 2, token = 29;
                    }
                    if (languageVariant === 1 &&
                        text.charCodeAt(pos + 1) === 47 &&
                        text.charCodeAt(pos + 2) !== 42) {
                        return pos += 2, token = 27;
                    }
                    pos++;
                    return token = 26;
                case 61:
                    if (isConflictMarkerTrivia(text, pos)) {
                        pos = scanConflictMarkerTrivia(text, pos, error);
                        if (skipTrivia) {
                            continue;
                        }
                        else {
                            return token = 7;
                        }
                    }
                    if (text.charCodeAt(pos + 1) === 61) {
                        if (text.charCodeAt(pos + 2) === 61) {
                            return pos += 3, token = 33;
                        }
                        return pos += 2, token = 31;
                    }
                    if (text.charCodeAt(pos + 1) === 62) {
                        return pos += 2, token = 35;
                    }
                    pos++;
                    return token = 57;
                case 62:
                    if (isConflictMarkerTrivia(text, pos)) {
                        pos = scanConflictMarkerTrivia(text, pos, error);
                        if (skipTrivia) {
                            continue;
                        }
                        else {
                            return token = 7;
                        }
                    }
                    pos++;
                    return token = 28;
                case 63:
                    pos++;
                    return token = 54;
                case 91:
                    pos++;
                    return token = 20;
                case 93:
                    pos++;
                    return token = 21;
                case 94:
                    if (text.charCodeAt(pos + 1) === 61) {
                        return pos += 2, token = 69;
                    }
                    pos++;
                    return token = 49;
                case 123:
                    pos++;
                    return token = 16;
                case 124:
                    if (text.charCodeAt(pos + 1) === 124) {
                        return pos += 2, token = 53;
                    }
                    if (text.charCodeAt(pos + 1) === 61) {
                        return pos += 2, token = 68;
                    }
                    pos++;
                    return token = 48;
                case 125:
                    pos++;
                    return token = 17;
                case 126:
                    pos++;
                    return token = 51;
                case 64:
                    pos++;
                    return token = 56;
                case 92:
                    var cookedChar = peekUnicodeEscape();
                    if (cookedChar >= 0 && isIdentifierStart(cookedChar, languageVersion)) {
                        pos += 6;
                        tokenValue = String.fromCharCode(cookedChar) + scanIdentifierParts();
                        return token = getIdentifierToken();
                    }
                    error(ts.Diagnostics.Invalid_character);
                    pos++;
                    return token = 0;
                default:
                    if (isIdentifierStart(ch, languageVersion)) {
                        pos++;
                        while (pos < end && isIdentifierPart(ch = text.charCodeAt(pos), languageVersion))
                            pos++;
                        tokenValue = text.substring(tokenPos, pos);
                        if (ch === 92) {
                            tokenValue += scanIdentifierParts();
                        }
                        return token = getIdentifierToken();
                    }
                    else if (isWhiteSpaceSingleLine(ch)) {
                        pos++;
                        continue;
                    }
                    else if (isLineBreak(ch)) {
                        precedingLineBreak = true;
                        pos++;
                        continue;
                    }
                    error(ts.Diagnostics.Invalid_character);
                    pos++;
                    return token = 0;
            }
        }
    }
    function reScanGreaterToken() {
        if (token === 28) {
            if (text.charCodeAt(pos) === 62) {
                if (text.charCodeAt(pos + 1) === 62) {
                    if (text.charCodeAt(pos + 2) === 61) {
                        return pos += 3, token = 66;
                    }
                    return pos += 2, token = 46;
                }
                if (text.charCodeAt(pos + 1) === 61) {
                    return pos += 2, token = 65;
                }
                pos++;
                return token = 45;
            }
            if (text.charCodeAt(pos) === 61) {
                pos++;
                return token = 30;
            }
        }
        return token;
    }
    function reScanSlashToken() {
        if (token === 40 || token === 62) {
            var p = tokenPos + 1;
            var inEscape = false;
            var inCharacterClass = false;
            while (true) {
                if (p >= end) {
                    tokenIsUnterminated = true;
                    error(ts.Diagnostics.Unterminated_regular_expression_literal);
                    break;
                }
                var ch = text.charCodeAt(p);
                if (isLineBreak(ch)) {
                    tokenIsUnterminated = true;
                    error(ts.Diagnostics.Unterminated_regular_expression_literal);
                    break;
                }
                if (inEscape) {
                    inEscape = false;
                }
                else if (ch === 47 && !inCharacterClass) {
                    p++;
                    break;
                }
                else if (ch === 91) {
                    inCharacterClass = true;
                }
                else if (ch === 92) {
                    inEscape = true;
                }
                else if (ch === 93) {
                    inCharacterClass = false;
                }
                p++;
            }
            while (p < end && isIdentifierPart(text.charCodeAt(p), languageVersion)) {
                p++;
            }
            pos = p;
            tokenValue = text.substring(tokenPos, pos);
            token = 11;
        }
        return token;
    }
    function reScanTemplateToken() {
        ts.Debug.assert(token === 17, "'reScanTemplateToken' should only be called on a '}'");
        pos = tokenPos;
        return token = scanTemplateAndSetTokenValue();
    }
    function reScanJsxToken() {
        pos = tokenPos = startPos;
        return token = scanJsxToken();
    }
    function scanJsxToken() {
        startPos = tokenPos = pos;
        if (pos >= end) {
            return token = 1;
        }
        var char = text.charCodeAt(pos);
        if (char === 60) {
            if (text.charCodeAt(pos + 1) === 47) {
                pos += 2;
                return token = 27;
            }
            pos++;
            return token = 26;
        }
        if (char === 123) {
            pos++;
            return token = 16;
        }
        while (pos < end) {
            pos++;
            char = text.charCodeAt(pos);
            if ((char === 123) || (char === 60)) {
                break;
            }
        }
        return token = 10;
    }
    function scanJsxIdentifier() {
        if (tokenIsIdentifierOrKeyword(token)) {
            var firstCharPosition = pos;
            while (pos < end) {
                var ch = text.charCodeAt(pos);
                if (ch === 45 || ((firstCharPosition === pos) ? isIdentifierStart(ch, languageVersion) : isIdentifierPart(ch, languageVersion))) {
                    pos++;
                }
                else {
                    break;
                }
            }
            tokenValue += text.substr(firstCharPosition, pos - firstCharPosition);
        }
        return token;
    }
    function scanJsxAttributeValue() {
        startPos = pos;
        switch (text.charCodeAt(pos)) {
            case 34:
            case 39:
                tokenValue = scanString(false);
                return token = 9;
            default:
                return scan();
        }
    }
    function scanJSDocToken() {
        if (pos >= end) {
            return token = 1;
        }
        startPos = pos;
        tokenPos = pos;
        var ch = text.charCodeAt(pos);
        switch (ch) {
            case 9:
            case 11:
            case 12:
            case 32:
                while (pos < end && isWhiteSpaceSingleLine(text.charCodeAt(pos))) {
                    pos++;
                }
                return token = 5;
            case 64:
                pos++;
                return token = 56;
            case 10:
            case 13:
                pos++;
                return token = 4;
            case 42:
                pos++;
                return token = 38;
            case 123:
                pos++;
                return token = 16;
            case 125:
                pos++;
                return token = 17;
            case 91:
                pos++;
                return token = 20;
            case 93:
                pos++;
                return token = 21;
            case 61:
                pos++;
                return token = 57;
            case 44:
                pos++;
                return token = 25;
            case 46:
                pos++;
                return token = 22;
        }
        if (isIdentifierStart(ch, 5)) {
            pos++;
            while (isIdentifierPart(text.charCodeAt(pos), 5) && pos < end) {
                pos++;
            }
            return token = 70;
        }
        else {
            return pos += 1, token = 0;
        }
    }
    function speculationHelper(callback, isLookahead) {
        var savePos = pos;
        var saveStartPos = startPos;
        var saveTokenPos = tokenPos;
        var saveToken = token;
        var saveTokenValue = tokenValue;
        var savePrecedingLineBreak = precedingLineBreak;
        var result = callback();
        if (!result || isLookahead) {
            pos = savePos;
            startPos = saveStartPos;
            tokenPos = saveTokenPos;
            token = saveToken;
            tokenValue = saveTokenValue;
            precedingLineBreak = savePrecedingLineBreak;
        }
        return result;
    }
    function scanRange(start, length, callback) {
        var saveEnd = end;
        var savePos = pos;
        var saveStartPos = startPos;
        var saveTokenPos = tokenPos;
        var saveToken = token;
        var savePrecedingLineBreak = precedingLineBreak;
        var saveTokenValue = tokenValue;
        var saveHasExtendedUnicodeEscape = hasExtendedUnicodeEscape;
        var saveTokenIsUnterminated = tokenIsUnterminated;
        setText(text, start, length);
        var result = callback();
        end = saveEnd;
        pos = savePos;
        startPos = saveStartPos;
        tokenPos = saveTokenPos;
        token = saveToken;
        precedingLineBreak = savePrecedingLineBreak;
        tokenValue = saveTokenValue;
        hasExtendedUnicodeEscape = saveHasExtendedUnicodeEscape;
        tokenIsUnterminated = saveTokenIsUnterminated;
        return result;
    }
    function lookAhead(callback) {
        return speculationHelper(callback, true);
    }
    function tryScan(callback) {
        return speculationHelper(callback, false);
    }
    function getText() {
        return text;
    }
    function setText(newText, start, length) {
        text = newText || "";
        end = length === undefined ? text.length : start + length;
        setTextPos(start || 0);
    }
    function setOnError(errorCallback) {
        onError = errorCallback;
    }
    function setScriptTarget(scriptTarget) {
        languageVersion = scriptTarget;
    }
    function setLanguageVariant(variant) {
        languageVariant = variant;
    }
    function setTextPos(textPos) {
        ts.Debug.assert(textPos >= 0);
        pos = textPos;
        startPos = textPos;
        tokenPos = textPos;
        token = 0;
        precedingLineBreak = false;
        tokenValue = undefined;
        hasExtendedUnicodeEscape = false;
        tokenIsUnterminated = false;
    }
}
ts.createScanner = createScanner;

})(ts || (ts = {})); var ts; (function (ts) {

ts.externalHelpersModuleNameText = "tslib";
function getDeclarationOfKind(symbol, kind) {
    var declarations = symbol.declarations;
    if (declarations) {
        for (var _i = 0, declarations_1 = declarations; _i < declarations_1.length; _i++) {
            var declaration = declarations_1[_i];
            if (declaration.kind === kind) {
                return declaration;
            }
        }
    }
    return undefined;
}
ts.getDeclarationOfKind = getDeclarationOfKind;
var stringWriters = [];
function getSingleLineStringWriter() {
    if (stringWriters.length === 0) {
        var str_1 = "";
        var writeText = function (text) { return str_1 += text; };
        return {
            string: function () { return str_1; },
            writeKeyword: writeText,
            writeOperator: writeText,
            writePunctuation: writeText,
            writeSpace: writeText,
            writeStringLiteral: writeText,
            writeParameter: writeText,
            writeProperty: writeText,
            writeSymbol: writeText,
            writeLine: function () { return str_1 += " "; },
            increaseIndent: ts.noop,
            decreaseIndent: ts.noop,
            clear: function () { return str_1 = ""; },
            trackSymbol: ts.noop,
            reportInaccessibleThisError: ts.noop
        };
    }
    return stringWriters.pop();
}
ts.getSingleLineStringWriter = getSingleLineStringWriter;
function releaseStringWriter(writer) {
    writer.clear();
    stringWriters.push(writer);
}
ts.releaseStringWriter = releaseStringWriter;
function getFullWidth(node) {
    return node.end - node.pos;
}
ts.getFullWidth = getFullWidth;
function hasResolvedModule(sourceFile, moduleNameText) {
    return !!(sourceFile && sourceFile.resolvedModules && sourceFile.resolvedModules[moduleNameText]);
}
ts.hasResolvedModule = hasResolvedModule;
function getResolvedModule(sourceFile, moduleNameText) {
    return hasResolvedModule(sourceFile, moduleNameText) ? sourceFile.resolvedModules[moduleNameText] : undefined;
}
ts.getResolvedModule = getResolvedModule;
function setResolvedModule(sourceFile, moduleNameText, resolvedModule) {
    if (!sourceFile.resolvedModules) {
        sourceFile.resolvedModules = ts.createMap();
    }
    sourceFile.resolvedModules[moduleNameText] = resolvedModule;
}
ts.setResolvedModule = setResolvedModule;
function setResolvedTypeReferenceDirective(sourceFile, typeReferenceDirectiveName, resolvedTypeReferenceDirective) {
    if (!sourceFile.resolvedTypeReferenceDirectiveNames) {
        sourceFile.resolvedTypeReferenceDirectiveNames = ts.createMap();
    }
    sourceFile.resolvedTypeReferenceDirectiveNames[typeReferenceDirectiveName] = resolvedTypeReferenceDirective;
}
ts.setResolvedTypeReferenceDirective = setResolvedTypeReferenceDirective;
function moduleResolutionIsEqualTo(oldResolution, newResolution) {
    return oldResolution.isExternalLibraryImport === newResolution.isExternalLibraryImport &&
        oldResolution.extension === newResolution.extension &&
        oldResolution.resolvedFileName === newResolution.resolvedFileName;
}
ts.moduleResolutionIsEqualTo = moduleResolutionIsEqualTo;
function typeDirectiveIsEqualTo(oldResolution, newResolution) {
    return oldResolution.resolvedFileName === newResolution.resolvedFileName && oldResolution.primary === newResolution.primary;
}
ts.typeDirectiveIsEqualTo = typeDirectiveIsEqualTo;
function hasChangesInResolutions(names, newResolutions, oldResolutions, comparer) {
    if (names.length !== newResolutions.length) {
        return false;
    }
    for (var i = 0; i < names.length; i++) {
        var newResolution = newResolutions[i];
        var oldResolution = oldResolutions && oldResolutions[names[i]];
        var changed = oldResolution
            ? !newResolution || !comparer(oldResolution, newResolution)
            : newResolution;
        if (changed) {
            return true;
        }
    }
    return false;
}
ts.hasChangesInResolutions = hasChangesInResolutions;
function containsParseError(node) {
    aggregateChildData(node);
    return (node.flags & 131072) !== 0;
}
ts.containsParseError = containsParseError;
function aggregateChildData(node) {
    if (!(node.flags & 262144)) {
        var thisNodeOrAnySubNodesHasError = ((node.flags & 32768) !== 0) ||
            ts.forEachChild(node, containsParseError);
        if (thisNodeOrAnySubNodesHasError) {
            node.flags |= 131072;
        }
        node.flags |= 262144;
    }
}
function getSourceFileOfNode(node) {
    while (node && node.kind !== 261) {
        node = node.parent;
    }
    return node;
}
ts.getSourceFileOfNode = getSourceFileOfNode;
function isStatementWithLocals(node) {
    switch (node.kind) {
        case 204:
        case 232:
        case 211:
        case 212:
        case 213:
            return true;
    }
    return false;
}
ts.isStatementWithLocals = isStatementWithLocals;
function getStartPositionOfLine(line, sourceFile) {
    ts.Debug.assert(line >= 0);
    return ts.getLineStarts(sourceFile)[line];
}
ts.getStartPositionOfLine = getStartPositionOfLine;
function nodePosToString(node) {
    var file = getSourceFileOfNode(node);
    var loc = ts.getLineAndCharacterOfPosition(file, node.pos);
    return file.fileName + "(" + (loc.line + 1) + "," + (loc.character + 1) + ")";
}
ts.nodePosToString = nodePosToString;
function getStartPosOfNode(node) {
    return node.pos;
}
ts.getStartPosOfNode = getStartPosOfNode;
function isDefined(value) {
    return value !== undefined;
}
ts.isDefined = isDefined;
function getEndLinePosition(line, sourceFile) {
    ts.Debug.assert(line >= 0);
    var lineStarts = ts.getLineStarts(sourceFile);
    var lineIndex = line;
    var sourceText = sourceFile.text;
    if (lineIndex + 1 === lineStarts.length) {
        return sourceText.length - 1;
    }
    else {
        var start = lineStarts[lineIndex];
        var pos = lineStarts[lineIndex + 1] - 1;
        ts.Debug.assert(ts.isLineBreak(sourceText.charCodeAt(pos)));
        while (start <= pos && ts.isLineBreak(sourceText.charCodeAt(pos))) {
            pos--;
        }
        return pos;
    }
}
ts.getEndLinePosition = getEndLinePosition;
function nodeIsMissing(node) {
    if (node === undefined) {
        return true;
    }
    return node.pos === node.end && node.pos >= 0 && node.kind !== 1;
}
ts.nodeIsMissing = nodeIsMissing;
function nodeIsPresent(node) {
    return !nodeIsMissing(node);
}
ts.nodeIsPresent = nodeIsPresent;
function getTokenPosOfNode(node, sourceFile, includeJsDoc) {
    if (nodeIsMissing(node)) {
        return node.pos;
    }
    if (isJSDocNode(node)) {
        return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos, false, true);
    }
    if (includeJsDoc && node.jsDoc && node.jsDoc.length > 0) {
        return getTokenPosOfNode(node.jsDoc[0]);
    }
    if (node.kind === 292 && node._children.length > 0) {
        return getTokenPosOfNode(node._children[0], sourceFile, includeJsDoc);
    }
    return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos);
}
ts.getTokenPosOfNode = getTokenPosOfNode;
function isJSDocNode(node) {
    return node.kind >= 262 && node.kind <= 288;
}
ts.isJSDocNode = isJSDocNode;
function isJSDocTag(node) {
    return node.kind >= 278 && node.kind <= 291;
}
ts.isJSDocTag = isJSDocTag;
function getNonDecoratorTokenPosOfNode(node, sourceFile) {
    if (nodeIsMissing(node) || !node.decorators) {
        return getTokenPosOfNode(node, sourceFile);
    }
    return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.decorators.end);
}
ts.getNonDecoratorTokenPosOfNode = getNonDecoratorTokenPosOfNode;
function getSourceTextOfNodeFromSourceFile(sourceFile, node, includeTrivia) {
    if (includeTrivia === void 0) { includeTrivia = false; }
    if (nodeIsMissing(node)) {
        return "";
    }
    var text = sourceFile.text;
    return text.substring(includeTrivia ? node.pos : ts.skipTrivia(text, node.pos), node.end);
}
ts.getSourceTextOfNodeFromSourceFile = getSourceTextOfNodeFromSourceFile;
function getTextOfNodeFromSourceText(sourceText, node) {
    if (nodeIsMissing(node)) {
        return "";
    }
    return sourceText.substring(ts.skipTrivia(sourceText, node.pos), node.end);
}
ts.getTextOfNodeFromSourceText = getTextOfNodeFromSourceText;
function getTextOfNode(node, includeTrivia) {
    if (includeTrivia === void 0) { includeTrivia = false; }
    return getSourceTextOfNodeFromSourceFile(getSourceFileOfNode(node), node, includeTrivia);
}
ts.getTextOfNode = getTextOfNode;
function getLiteralText(node, sourceFile, languageVersion) {
    if (languageVersion < 2 && (isTemplateLiteralKind(node.kind) || node.hasExtendedUnicodeEscape)) {
        return getQuotedEscapedLiteralText('"', node.text, '"');
    }
    if (!nodeIsSynthesized(node) && node.parent) {
        var text = getSourceTextOfNodeFromSourceFile(sourceFile, node);
        if (languageVersion < 2 && isBinaryOrOctalIntegerLiteral(node, text)) {
            return node.text;
        }
        return text;
    }
    switch (node.kind) {
        case 9:
            return getQuotedEscapedLiteralText('"', node.text, '"');
        case 12:
            return getQuotedEscapedLiteralText("`", node.text, "`");
        case 13:
            return getQuotedEscapedLiteralText("`", node.text, "${");
        case 14:
            return getQuotedEscapedLiteralText("}", node.text, "${");
        case 15:
            return getQuotedEscapedLiteralText("}", node.text, "`");
        case 8:
            return node.text;
    }
    ts.Debug.fail("Literal kind '" + node.kind + "' not accounted for.");
}
ts.getLiteralText = getLiteralText;
function isBinaryOrOctalIntegerLiteral(node, text) {
    if (node.kind === 8 && text.length > 1) {
        switch (text.charCodeAt(1)) {
            case 98:
            case 66:
            case 111:
            case 79:
                return true;
        }
    }
    return false;
}
ts.isBinaryOrOctalIntegerLiteral = isBinaryOrOctalIntegerLiteral;
function getQuotedEscapedLiteralText(leftQuote, text, rightQuote) {
    return leftQuote + escapeNonAsciiCharacters(escapeString(text)) + rightQuote;
}
function escapeIdentifier(identifier) {
    return identifier.length >= 2 && identifier.charCodeAt(0) === 95 && identifier.charCodeAt(1) === 95 ? "_" + identifier : identifier;
}
ts.escapeIdentifier = escapeIdentifier;
function unescapeIdentifier(identifier) {
    return identifier.length >= 3 && identifier.charCodeAt(0) === 95 && identifier.charCodeAt(1) === 95 && identifier.charCodeAt(2) === 95 ? identifier.substr(1) : identifier;
}
ts.unescapeIdentifier = unescapeIdentifier;
function makeIdentifierFromModuleName(moduleName) {
    return ts.getBaseFileName(moduleName).replace(/^(\d)/, "_$1").replace(/\W/g, "_");
}
ts.makeIdentifierFromModuleName = makeIdentifierFromModuleName;
function isBlockOrCatchScoped(declaration) {
    return (ts.getCombinedNodeFlags(declaration) & 3) !== 0 ||
        isCatchClauseVariableDeclarationOrBindingElement(declaration);
}
ts.isBlockOrCatchScoped = isBlockOrCatchScoped;
function isCatchClauseVariableDeclarationOrBindingElement(declaration) {
    var node = getRootDeclaration(declaration);
    return node.kind === 223 && node.parent.kind === 256;
}
ts.isCatchClauseVariableDeclarationOrBindingElement = isCatchClauseVariableDeclarationOrBindingElement;
function isAmbientModule(node) {
    return node && node.kind === 230 &&
        (node.name.kind === 9 || isGlobalScopeAugmentation(node));
}
ts.isAmbientModule = isAmbientModule;
function isShorthandAmbientModuleSymbol(moduleSymbol) {
    return isShorthandAmbientModule(moduleSymbol.valueDeclaration);
}
ts.isShorthandAmbientModuleSymbol = isShorthandAmbientModuleSymbol;
function isShorthandAmbientModule(node) {
    return node.kind === 230 && (!node.body);
}
function isBlockScopedContainerTopLevel(node) {
    return node.kind === 261 ||
        node.kind === 230 ||
        isFunctionLike(node);
}
ts.isBlockScopedContainerTopLevel = isBlockScopedContainerTopLevel;
function isGlobalScopeAugmentation(module) {
    return !!(module.flags & 512);
}
ts.isGlobalScopeAugmentation = isGlobalScopeAugmentation;
function isExternalModuleAugmentation(node) {
    if (!node || !isAmbientModule(node)) {
        return false;
    }
    switch (node.parent.kind) {
        case 261:
            return ts.isExternalModule(node.parent);
        case 231:
            return isAmbientModule(node.parent.parent) && !ts.isExternalModule(node.parent.parent.parent);
    }
    return false;
}
ts.isExternalModuleAugmentation = isExternalModuleAugmentation;
function isEffectiveExternalModule(node, compilerOptions) {
    return ts.isExternalModule(node) || compilerOptions.isolatedModules;
}
ts.isEffectiveExternalModule = isEffectiveExternalModule;
function isBlockScope(node, parentNode) {
    switch (node.kind) {
        case 261:
        case 232:
        case 256:
        case 230:
        case 211:
        case 212:
        case 213:
        case 150:
        case 149:
        case 151:
        case 152:
        case 225:
        case 184:
        case 185:
            return true;
        case 204:
            return parentNode && !isFunctionLike(parentNode);
    }
    return false;
}
ts.isBlockScope = isBlockScope;
function getEnclosingBlockScopeContainer(node) {
    var current = node.parent;
    while (current) {
        if (isBlockScope(current, current.parent)) {
            return current;
        }
        current = current.parent;
    }
}
ts.getEnclosingBlockScopeContainer = getEnclosingBlockScopeContainer;
function declarationNameToString(name) {
    return getFullWidth(name) === 0 ? "(Missing)" : getTextOfNode(name);
}
ts.declarationNameToString = declarationNameToString;
function getTextOfPropertyName(name) {
    switch (name.kind) {
        case 70:
            return name.text;
        case 9:
        case 8:
            return name.text;
        case 142:
            if (isStringOrNumericLiteral(name.expression)) {
                return name.expression.text;
            }
    }
    return undefined;
}
ts.getTextOfPropertyName = getTextOfPropertyName;
function entityNameToString(name) {
    switch (name.kind) {
        case 70:
            return getFullWidth(name) === 0 ? unescapeIdentifier(name.text) : getTextOfNode(name);
        case 141:
            return entityNameToString(name.left) + "." + entityNameToString(name.right);
        case 177:
            return entityNameToString(name.expression) + "." + entityNameToString(name.name);
    }
}
ts.entityNameToString = entityNameToString;
function createDiagnosticForNode(node, message, arg0, arg1, arg2) {
    var sourceFile = getSourceFileOfNode(node);
    return createDiagnosticForNodeInSourceFile(sourceFile, node, message, arg0, arg1, arg2);
}
ts.createDiagnosticForNode = createDiagnosticForNode;
function createDiagnosticForNodeInSourceFile(sourceFile, node, message, arg0, arg1, arg2) {
    var span = getErrorSpanForNode(sourceFile, node);
    return ts.createFileDiagnostic(sourceFile, span.start, span.length, message, arg0, arg1, arg2);
}
ts.createDiagnosticForNodeInSourceFile = createDiagnosticForNodeInSourceFile;
function createDiagnosticForNodeFromMessageChain(node, messageChain) {
    var sourceFile = getSourceFileOfNode(node);
    var span = getErrorSpanForNode(sourceFile, node);
    return {
        file: sourceFile,
        start: span.start,
        length: span.length,
        code: messageChain.code,
        category: messageChain.category,
        messageText: messageChain.next ? messageChain : messageChain.messageText
    };
}
ts.createDiagnosticForNodeFromMessageChain = createDiagnosticForNodeFromMessageChain;
function getSpanOfTokenAtPosition(sourceFile, pos) {
    var scanner = ts.createScanner(sourceFile.languageVersion, true, sourceFile.languageVariant, sourceFile.text, undefined, pos);
    scanner.scan();
    var start = scanner.getTokenPos();
    return ts.createTextSpanFromBounds(start, scanner.getTextPos());
}
ts.getSpanOfTokenAtPosition = getSpanOfTokenAtPosition;
function getErrorSpanForArrowFunction(sourceFile, node) {
    var pos = ts.skipTrivia(sourceFile.text, node.pos);
    if (node.body && node.body.kind === 204) {
        var startLine = ts.getLineAndCharacterOfPosition(sourceFile, node.body.pos).line;
        var endLine = ts.getLineAndCharacterOfPosition(sourceFile, node.body.end).line;
        if (startLine < endLine) {
            return ts.createTextSpan(pos, getEndLinePosition(startLine, sourceFile) - pos + 1);
        }
    }
    return ts.createTextSpanFromBounds(pos, node.end);
}
function getErrorSpanForNode(sourceFile, node) {
    var errorNode = node;
    switch (node.kind) {
        case 261:
            var pos_1 = ts.skipTrivia(sourceFile.text, 0, false);
            if (pos_1 === sourceFile.text.length) {
                return ts.createTextSpan(0, 0);
            }
            return getSpanOfTokenAtPosition(sourceFile, pos_1);
        case 223:
        case 174:
        case 226:
        case 197:
        case 227:
        case 230:
        case 229:
        case 260:
        case 225:
        case 184:
        case 149:
        case 151:
        case 152:
        case 228:
            errorNode = node.name;
            break;
        case 185:
            return getErrorSpanForArrowFunction(sourceFile, node);
    }
    if (errorNode === undefined) {
        return getSpanOfTokenAtPosition(sourceFile, node.pos);
    }
    var pos = nodeIsMissing(errorNode)
        ? errorNode.pos
        : ts.skipTrivia(sourceFile.text, errorNode.pos);
    return ts.createTextSpanFromBounds(pos, errorNode.end);
}
ts.getErrorSpanForNode = getErrorSpanForNode;
function isExternalOrCommonJsModule(file) {
    return (file.externalModuleIndicator || file.commonJsModuleIndicator) !== undefined;
}
ts.isExternalOrCommonJsModule = isExternalOrCommonJsModule;
function isDeclarationFile(file) {
    return file.isDeclarationFile;
}
ts.isDeclarationFile = isDeclarationFile;
function isConstEnumDeclaration(node) {
    return node.kind === 229 && isConst(node);
}
ts.isConstEnumDeclaration = isConstEnumDeclaration;
function isConst(node) {
    return !!(ts.getCombinedNodeFlags(node) & 2)
        || !!(ts.getCombinedModifierFlags(node) & 2048);
}
ts.isConst = isConst;
function isLet(node) {
    return !!(ts.getCombinedNodeFlags(node) & 1);
}
ts.isLet = isLet;
function isSuperCall(n) {
    return n.kind === 179 && n.expression.kind === 96;
}
ts.isSuperCall = isSuperCall;
function isPrologueDirective(node) {
    return node.kind === 207
        && node.expression.kind === 9;
}
ts.isPrologueDirective = isPrologueDirective;
function getLeadingCommentRangesOfNode(node, sourceFileOfNode) {
    return ts.getLeadingCommentRanges(sourceFileOfNode.text, node.pos);
}
ts.getLeadingCommentRangesOfNode = getLeadingCommentRangesOfNode;
function getLeadingCommentRangesOfNodeFromText(node, text) {
    return ts.getLeadingCommentRanges(text, node.pos);
}
ts.getLeadingCommentRangesOfNodeFromText = getLeadingCommentRangesOfNodeFromText;
function getJSDocCommentRanges(node, text) {
    var commentRanges = (node.kind === 144 ||
        node.kind === 143 ||
        node.kind === 184 ||
        node.kind === 185) ?
        ts.concatenate(ts.getTrailingCommentRanges(text, node.pos), ts.getLeadingCommentRanges(text, node.pos)) :
        getLeadingCommentRangesOfNodeFromText(node, text);
    return ts.filter(commentRanges, function (comment) {
        return text.charCodeAt(comment.pos + 1) === 42 &&
            text.charCodeAt(comment.pos + 2) === 42 &&
            text.charCodeAt(comment.pos + 3) !== 47;
    });
}
ts.getJSDocCommentRanges = getJSDocCommentRanges;
ts.fullTripleSlashReferencePathRegEx = /^(\/\/\/\s*<reference\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
ts.fullTripleSlashReferenceTypeReferenceDirectiveRegEx = /^(\/\/\/\s*<reference\s+types\s*=\s*)('|")(.+?)\2.*?\/>/;
ts.fullTripleSlashAMDReferencePathRegEx = /^(\/\/\/\s*<amd-dependency\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
function isPartOfTypeNode(node) {
    if (156 <= node.kind && node.kind <= 171) {
        return true;
    }
    switch (node.kind) {
        case 118:
        case 132:
        case 134:
        case 121:
        case 135:
        case 137:
        case 129:
            return true;
        case 104:
            return node.parent.kind !== 188;
        case 199:
            return !isExpressionWithTypeArgumentsInClassExtendsClause(node);
        case 70:
            if (node.parent.kind === 141 && node.parent.right === node) {
                node = node.parent;
            }
            else if (node.parent.kind === 177 && node.parent.name === node) {
                node = node.parent;
            }
            ts.Debug.assert(node.kind === 70 || node.kind === 141 || node.kind === 177, "'node' was expected to be a qualified name, identifier or property access in 'isPartOfTypeNode'.");
        case 141:
        case 177:
        case 98:
            var parent_1 = node.parent;
            if (parent_1.kind === 160) {
                return false;
            }
            if (156 <= parent_1.kind && parent_1.kind <= 171) {
                return true;
            }
            switch (parent_1.kind) {
                case 199:
                    return !isExpressionWithTypeArgumentsInClassExtendsClause(parent_1);
                case 143:
                    return node === parent_1.constraint;
                case 147:
                case 146:
                case 144:
                case 223:
                    return node === parent_1.type;
                case 225:
                case 184:
                case 185:
                case 150:
                case 149:
                case 148:
                case 151:
                case 152:
                    return node === parent_1.type;
                case 153:
                case 154:
                case 155:
                    return node === parent_1.type;
                case 182:
                    return node === parent_1.type;
                case 179:
                case 180:
                    return parent_1.typeArguments && ts.indexOf(parent_1.typeArguments, node) >= 0;
                case 181:
                    return false;
            }
    }
    return false;
}
ts.isPartOfTypeNode = isPartOfTypeNode;
function isChildOfLiteralType(node) {
    while (node) {
        if (node.kind === 171) {
            return true;
        }
        node = node.parent;
    }
    return false;
}
ts.isChildOfLiteralType = isChildOfLiteralType;
function isPrefixUnaryExpression(node) {
    return node.kind === 190;
}
ts.isPrefixUnaryExpression = isPrefixUnaryExpression;
function forEachReturnStatement(body, visitor) {
    return traverse(body);
    function traverse(node) {
        switch (node.kind) {
            case 216:
                return visitor(node);
            case 232:
            case 204:
            case 208:
            case 209:
            case 210:
            case 211:
            case 212:
            case 213:
            case 217:
            case 218:
            case 253:
            case 254:
            case 219:
            case 221:
            case 256:
                return ts.forEachChild(node, traverse);
        }
    }
}
ts.forEachReturnStatement = forEachReturnStatement;
function forEachYieldExpression(body, visitor) {
    return traverse(body);
    function traverse(node) {
        switch (node.kind) {
            case 195:
                visitor(node);
                var operand = node.expression;
                if (operand) {
                    traverse(operand);
                }
            case 229:
            case 227:
            case 230:
            case 228:
            case 226:
            case 197:
                return;
            default:
                if (isFunctionLike(node)) {
                    var name_5 = node.name;
                    if (name_5 && name_5.kind === 142) {
                        traverse(name_5.expression);
                        return;
                    }
                }
                else if (!isPartOfTypeNode(node)) {
                    ts.forEachChild(node, traverse);
                }
        }
    }
}
ts.forEachYieldExpression = forEachYieldExpression;
function getRestParameterElementType(node) {
    if (node && node.kind === 162) {
        return node.elementType;
    }
    else if (node && node.kind === 157) {
        return ts.singleOrUndefined(node.typeArguments);
    }
    else {
        return undefined;
    }
}
ts.getRestParameterElementType = getRestParameterElementType;
function isVariableLike(node) {
    if (node) {
        switch (node.kind) {
            case 174:
            case 260:
            case 144:
            case 257:
            case 147:
            case 146:
            case 258:
            case 223:
                return true;
        }
    }
    return false;
}
ts.isVariableLike = isVariableLike;
function isAccessor(node) {
    return node && (node.kind === 151 || node.kind === 152);
}
ts.isAccessor = isAccessor;
function isClassLike(node) {
    return node && (node.kind === 226 || node.kind === 197);
}
ts.isClassLike = isClassLike;
function isFunctionLike(node) {
    return node && isFunctionLikeKind(node.kind);
}
ts.isFunctionLike = isFunctionLike;
function isFunctionLikeKind(kind) {
    switch (kind) {
        case 150:
        case 184:
        case 225:
        case 185:
        case 149:
        case 148:
        case 151:
        case 152:
        case 153:
        case 154:
        case 155:
        case 158:
        case 159:
            return true;
    }
    return false;
}
ts.isFunctionLikeKind = isFunctionLikeKind;
function introducesArgumentsExoticObject(node) {
    switch (node.kind) {
        case 149:
        case 148:
        case 150:
        case 151:
        case 152:
        case 225:
        case 184:
            return true;
    }
    return false;
}
ts.introducesArgumentsExoticObject = introducesArgumentsExoticObject;
function isIterationStatement(node, lookInLabeledStatements) {
    switch (node.kind) {
        case 211:
        case 212:
        case 213:
        case 209:
        case 210:
            return true;
        case 219:
            return lookInLabeledStatements && isIterationStatement(node.statement, lookInLabeledStatements);
    }
    return false;
}
ts.isIterationStatement = isIterationStatement;
function isFunctionBlock(node) {
    return node && node.kind === 204 && isFunctionLike(node.parent);
}
ts.isFunctionBlock = isFunctionBlock;
function isObjectLiteralMethod(node) {
    return node && node.kind === 149 && node.parent.kind === 176;
}
ts.isObjectLiteralMethod = isObjectLiteralMethod;
function isObjectLiteralOrClassExpressionMethod(node) {
    return node.kind === 149 &&
        (node.parent.kind === 176 ||
            node.parent.kind === 197);
}
ts.isObjectLiteralOrClassExpressionMethod = isObjectLiteralOrClassExpressionMethod;
function isIdentifierTypePredicate(predicate) {
    return predicate && predicate.kind === 1;
}
ts.isIdentifierTypePredicate = isIdentifierTypePredicate;
function isThisTypePredicate(predicate) {
    return predicate && predicate.kind === 0;
}
ts.isThisTypePredicate = isThisTypePredicate;
function getContainingFunction(node) {
    while (true) {
        node = node.parent;
        if (!node || isFunctionLike(node)) {
            return node;
        }
    }
}
ts.getContainingFunction = getContainingFunction;
function getContainingClass(node) {
    while (true) {
        node = node.parent;
        if (!node || isClassLike(node)) {
            return node;
        }
    }
}
ts.getContainingClass = getContainingClass;
function getThisContainer(node, includeArrowFunctions) {
    while (true) {
        node = node.parent;
        if (!node) {
            return undefined;
        }
        switch (node.kind) {
            case 142:
                if (isClassLike(node.parent.parent)) {
                    return node;
                }
                node = node.parent;
                break;
            case 145:
                if (node.parent.kind === 144 && isClassElement(node.parent.parent)) {
                    node = node.parent.parent;
                }
                else if (isClassElement(node.parent)) {
                    node = node.parent;
                }
                break;
            case 185:
                if (!includeArrowFunctions) {
                    continue;
                }
            case 225:
            case 184:
            case 230:
            case 147:
            case 146:
            case 149:
            case 148:
            case 150:
            case 151:
            case 152:
            case 153:
            case 154:
            case 155:
            case 229:
            case 261:
                return node;
        }
    }
}
ts.getThisContainer = getThisContainer;
function getSuperContainer(node, stopOnFunctions) {
    while (true) {
        node = node.parent;
        if (!node) {
            return node;
        }
        switch (node.kind) {
            case 142:
                node = node.parent;
                break;
            case 225:
            case 184:
            case 185:
                if (!stopOnFunctions) {
                    continue;
                }
            case 147:
            case 146:
            case 149:
            case 148:
            case 150:
            case 151:
            case 152:
                return node;
            case 145:
                if (node.parent.kind === 144 && isClassElement(node.parent.parent)) {
                    node = node.parent.parent;
                }
                else if (isClassElement(node.parent)) {
                    node = node.parent;
                }
                break;
        }
    }
}
ts.getSuperContainer = getSuperContainer;
function getImmediatelyInvokedFunctionExpression(func) {
    if (func.kind === 184 || func.kind === 185) {
        var prev = func;
        var parent_2 = func.parent;
        while (parent_2.kind === 183) {
            prev = parent_2;
            parent_2 = parent_2.parent;
        }
        if (parent_2.kind === 179 && parent_2.expression === prev) {
            return parent_2;
        }
    }
}
ts.getImmediatelyInvokedFunctionExpression = getImmediatelyInvokedFunctionExpression;
function isSuperProperty(node) {
    var kind = node.kind;
    return (kind === 177 || kind === 178)
        && node.expression.kind === 96;
}
ts.isSuperProperty = isSuperProperty;
function getEntityNameFromTypeNode(node) {
    switch (node.kind) {
        case 157:
        case 272:
            return node.typeName;
        case 199:
            return isEntityNameExpression(node.expression)
                ? node.expression
                : undefined;
        case 70:
        case 141:
            return node;
    }
    return undefined;
}
ts.getEntityNameFromTypeNode = getEntityNameFromTypeNode;
function isCallLikeExpression(node) {
    switch (node.kind) {
        case 179:
        case 180:
        case 181:
        case 145:
            return true;
        default:
            return false;
    }
}
ts.isCallLikeExpression = isCallLikeExpression;
function getInvokedExpression(node) {
    if (node.kind === 181) {
        return node.tag;
    }
    return node.expression;
}
ts.getInvokedExpression = getInvokedExpression;
function nodeCanBeDecorated(node) {
    switch (node.kind) {
        case 226:
            return true;
        case 147:
            return node.parent.kind === 226;
        case 151:
        case 152:
        case 149:
            return node.body !== undefined
                && node.parent.kind === 226;
        case 144:
            return node.parent.body !== undefined
                && (node.parent.kind === 150
                    || node.parent.kind === 149
                    || node.parent.kind === 152)
                && node.parent.parent.kind === 226;
    }
    return false;
}
ts.nodeCanBeDecorated = nodeCanBeDecorated;
function nodeIsDecorated(node) {
    return node.decorators !== undefined
        && nodeCanBeDecorated(node);
}
ts.nodeIsDecorated = nodeIsDecorated;
function nodeOrChildIsDecorated(node) {
    return nodeIsDecorated(node) || childIsDecorated(node);
}
ts.nodeOrChildIsDecorated = nodeOrChildIsDecorated;
function childIsDecorated(node) {
    switch (node.kind) {
        case 226:
            return ts.forEach(node.members, nodeOrChildIsDecorated);
        case 149:
        case 152:
            return ts.forEach(node.parameters, nodeIsDecorated);
    }
}
ts.childIsDecorated = childIsDecorated;
function isJSXTagName(node) {
    var parent = node.parent;
    if (parent.kind === 248 ||
        parent.kind === 247 ||
        parent.kind === 249) {
        return parent.tagName === node;
    }
    return false;
}
ts.isJSXTagName = isJSXTagName;
function isPartOfExpression(node) {
    switch (node.kind) {
        case 98:
        case 96:
        case 94:
        case 100:
        case 85:
        case 11:
        case 175:
        case 176:
        case 177:
        case 178:
        case 179:
        case 180:
        case 181:
        case 200:
        case 182:
        case 201:
        case 183:
        case 184:
        case 197:
        case 185:
        case 188:
        case 186:
        case 187:
        case 190:
        case 191:
        case 192:
        case 193:
        case 196:
        case 194:
        case 12:
        case 198:
        case 246:
        case 247:
        case 195:
        case 189:
            return true;
        case 141:
            while (node.parent.kind === 141) {
                node = node.parent;
            }
            return node.parent.kind === 160 || isJSXTagName(node);
        case 70:
            if (node.parent.kind === 160 || isJSXTagName(node)) {
                return true;
            }
        case 8:
        case 9:
        case 98:
            var parent_3 = node.parent;
            switch (parent_3.kind) {
                case 223:
                case 144:
                case 147:
                case 146:
                case 260:
                case 257:
                case 174:
                    return parent_3.initializer === node;
                case 207:
                case 208:
                case 209:
                case 210:
                case 216:
                case 217:
                case 218:
                case 253:
                case 220:
                case 218:
                    return parent_3.expression === node;
                case 211:
                    var forStatement = parent_3;
                    return (forStatement.initializer === node && forStatement.initializer.kind !== 224) ||
                        forStatement.condition === node ||
                        forStatement.incrementor === node;
                case 212:
                case 213:
                    var forInStatement = parent_3;
                    return (forInStatement.initializer === node && forInStatement.initializer.kind !== 224) ||
                        forInStatement.expression === node;
                case 182:
                case 200:
                    return node === parent_3.expression;
                case 202:
                    return node === parent_3.expression;
                case 142:
                    return node === parent_3.expression;
                case 145:
                case 252:
                case 251:
                case 259:
                    return true;
                case 199:
                    return parent_3.expression === node && isExpressionWithTypeArgumentsInClassExtendsClause(parent_3);
                default:
                    if (isPartOfExpression(parent_3)) {
                        return true;
                    }
            }
    }
    return false;
}
ts.isPartOfExpression = isPartOfExpression;
function isInstantiatedModule(node, preserveConstEnums) {
    var moduleState = ts.getModuleInstanceState(node);
    return moduleState === 1 ||
        (preserveConstEnums && moduleState === 2);
}
ts.isInstantiatedModule = isInstantiatedModule;
function isExternalModuleImportEqualsDeclaration(node) {
    return node.kind === 234 && node.moduleReference.kind === 245;
}
ts.isExternalModuleImportEqualsDeclaration = isExternalModuleImportEqualsDeclaration;
function getExternalModuleImportEqualsDeclarationExpression(node) {
    ts.Debug.assert(isExternalModuleImportEqualsDeclaration(node));
    return node.moduleReference.expression;
}
ts.getExternalModuleImportEqualsDeclarationExpression = getExternalModuleImportEqualsDeclarationExpression;
function isInternalModuleImportEqualsDeclaration(node) {
    return node.kind === 234 && node.moduleReference.kind !== 245;
}
ts.isInternalModuleImportEqualsDeclaration = isInternalModuleImportEqualsDeclaration;
function isSourceFileJavaScript(file) {
    return isInJavaScriptFile(file);
}
ts.isSourceFileJavaScript = isSourceFileJavaScript;
function isInJavaScriptFile(node) {
    return node && !!(node.flags & 65536);
}
ts.isInJavaScriptFile = isInJavaScriptFile;
function isRequireCall(expression, checkArgumentIsStringLiteral) {
    var isRequire = expression.kind === 179 &&
        expression.expression.kind === 70 &&
        expression.expression.text === "require" &&
        expression.arguments.length === 1;
    return isRequire && (!checkArgumentIsStringLiteral || expression.arguments[0].kind === 9);
}
ts.isRequireCall = isRequireCall;
function isSingleOrDoubleQuote(charCode) {
    return charCode === 39 || charCode === 34;
}
ts.isSingleOrDoubleQuote = isSingleOrDoubleQuote;
function isDeclarationOfFunctionExpression(s) {
    if (s.valueDeclaration && s.valueDeclaration.kind === 223) {
        var declaration = s.valueDeclaration;
        return declaration.initializer && declaration.initializer.kind === 184;
    }
    return false;
}
ts.isDeclarationOfFunctionExpression = isDeclarationOfFunctionExpression;
function getSpecialPropertyAssignmentKind(expression) {
    if (!isInJavaScriptFile(expression)) {
        return 0;
    }
    if (expression.kind !== 192) {
        return 0;
    }
    var expr = expression;
    if (expr.operatorToken.kind !== 57 || expr.left.kind !== 177) {
        return 0;
    }
    var lhs = expr.left;
    if (lhs.expression.kind === 70) {
        var lhsId = lhs.expression;
        if (lhsId.text === "exports") {
            return 1;
        }
        else if (lhsId.text === "module" && lhs.name.text === "exports") {
            return 2;
        }
    }
    else if (lhs.expression.kind === 98) {
        return 4;
    }
    else if (lhs.expression.kind === 177) {
        var innerPropertyAccess = lhs.expression;
        if (innerPropertyAccess.expression.kind === 70) {
            var innerPropertyAccessIdentifier = innerPropertyAccess.expression;
            if (innerPropertyAccessIdentifier.text === "module" && innerPropertyAccess.name.text === "exports") {
                return 1;
            }
            if (innerPropertyAccess.name.text === "prototype") {
                return 3;
            }
        }
    }
    return 0;
}
ts.getSpecialPropertyAssignmentKind = getSpecialPropertyAssignmentKind;
function getExternalModuleName(node) {
    if (node.kind === 235) {
        return node.moduleSpecifier;
    }
    if (node.kind === 234) {
        var reference = node.moduleReference;
        if (reference.kind === 245) {
            return reference.expression;
        }
    }
    if (node.kind === 241) {
        return node.moduleSpecifier;
    }
    if (node.kind === 230 && node.name.kind === 9) {
        return node.name;
    }
}
ts.getExternalModuleName = getExternalModuleName;
function getNamespaceDeclarationNode(node) {
    if (node.kind === 234) {
        return node;
    }
    var importClause = node.importClause;
    if (importClause && importClause.namedBindings && importClause.namedBindings.kind === 237) {
        return importClause.namedBindings;
    }
}
ts.getNamespaceDeclarationNode = getNamespaceDeclarationNode;
function isDefaultImport(node) {
    return node.kind === 235
        && node.importClause
        && !!node.importClause.name;
}
ts.isDefaultImport = isDefaultImport;
function hasQuestionToken(node) {
    if (node) {
        switch (node.kind) {
            case 144:
            case 149:
            case 148:
            case 258:
            case 257:
            case 147:
            case 146:
                return node.questionToken !== undefined;
        }
    }
    return false;
}
ts.hasQuestionToken = hasQuestionToken;
function isJSDocConstructSignature(node) {
    return node.kind === 274 &&
        node.parameters.length > 0 &&
        node.parameters[0].type.kind === 276;
}
ts.isJSDocConstructSignature = isJSDocConstructSignature;
function getCommentsFromJSDoc(node) {
    return ts.map(getJSDocs(node), function (doc) { return doc.comment; });
}
ts.getCommentsFromJSDoc = getCommentsFromJSDoc;
function getJSDocTags(node, kind) {
    var docs = getJSDocs(node);
    if (docs) {
        var result = [];
        for (var _i = 0, docs_1 = docs; _i < docs_1.length; _i++) {
            var doc = docs_1[_i];
            if (doc.kind === 281) {
                if (doc.kind === kind) {
                    result.push(doc);
                }
            }
            else {
                result.push.apply(result, ts.filter(doc.tags, function (tag) { return tag.kind === kind; }));
            }
        }
        return result;
    }
}
function getFirstJSDocTag(node, kind) {
    return node && ts.firstOrUndefined(getJSDocTags(node, kind));
}
function getJSDocs(node) {
    var cache = node.jsDocCache;
    if (!cache) {
        getJSDocsWorker(node);
        node.jsDocCache = cache;
    }
    return cache;
    function getJSDocsWorker(node) {
        var parent = node.parent;
        var isInitializerOfVariableDeclarationInStatement = isVariableLike(parent) &&
            parent.initializer === node &&
            parent.parent.parent.kind === 205;
        var isVariableOfVariableDeclarationStatement = isVariableLike(node) &&
            parent.parent.kind === 205;
        var variableStatementNode = isInitializerOfVariableDeclarationInStatement ? parent.parent.parent :
            isVariableOfVariableDeclarationStatement ? parent.parent :
                undefined;
        if (variableStatementNode) {
            getJSDocsWorker(variableStatementNode);
        }
        var isSourceOfAssignmentExpressionStatement = parent && parent.parent &&
            parent.kind === 192 &&
            parent.operatorToken.kind === 57 &&
            parent.parent.kind === 207;
        if (isSourceOfAssignmentExpressionStatement) {
            getJSDocsWorker(parent.parent);
        }
        var isModuleDeclaration = node.kind === 230 &&
            parent && parent.kind === 230;
        var isPropertyAssignmentExpression = parent && parent.kind === 257;
        if (isModuleDeclaration || isPropertyAssignmentExpression) {
            getJSDocsWorker(parent);
        }
        if (node.kind === 144) {
            cache = ts.concatenate(cache, getJSDocParameterTags(node));
        }
        if (isVariableLike(node) && node.initializer) {
            cache = ts.concatenate(cache, node.initializer.jsDoc);
        }
        cache = ts.concatenate(cache, node.jsDoc);
    }
}
ts.getJSDocs = getJSDocs;
function getJSDocParameterTags(param) {
    if (!isParameter(param)) {
        return undefined;
    }
    var func = param.parent;
    var tags = getJSDocTags(func, 281);
    if (!param.name) {
        var i = func.parameters.indexOf(param);
        var paramTags = ts.filter(tags, function (tag) { return tag.kind === 281; });
        if (paramTags && 0 <= i && i < paramTags.length) {
            return [paramTags[i]];
        }
    }
    else if (param.name.kind === 70) {
        var name_6 = param.name.text;
        return ts.filter(tags, function (tag) { return tag.kind === 281 && tag.parameterName.text === name_6; });
    }
    else {
        return undefined;
    }
}
ts.getJSDocParameterTags = getJSDocParameterTags;
function getJSDocType(node) {
    var tag = getFirstJSDocTag(node, 283);
    if (!tag && node.kind === 144) {
        var paramTags = getJSDocParameterTags(node);
        if (paramTags) {
            tag = ts.find(paramTags, function (tag) { return !!tag.typeExpression; });
        }
    }
    return tag && tag.typeExpression && tag.typeExpression.type;
}
ts.getJSDocType = getJSDocType;
function getJSDocAugmentsTag(node) {
    return getFirstJSDocTag(node, 280);
}
ts.getJSDocAugmentsTag = getJSDocAugmentsTag;
function getJSDocReturnTag(node) {
    return getFirstJSDocTag(node, 282);
}
ts.getJSDocReturnTag = getJSDocReturnTag;
function getJSDocTemplateTag(node) {
    return getFirstJSDocTag(node, 284);
}
ts.getJSDocTemplateTag = getJSDocTemplateTag;
function hasRestParameter(s) {
    return isRestParameter(ts.lastOrUndefined(s.parameters));
}
ts.hasRestParameter = hasRestParameter;
function hasDeclaredRestParameter(s) {
    return isDeclaredRestParam(ts.lastOrUndefined(s.parameters));
}
ts.hasDeclaredRestParameter = hasDeclaredRestParameter;
function isRestParameter(node) {
    if (node && (node.flags & 65536)) {
        if (node.type && node.type.kind === 275 ||
            ts.forEach(getJSDocParameterTags(node), function (t) { return t.typeExpression && t.typeExpression.type.kind === 275; })) {
            return true;
        }
    }
    return isDeclaredRestParam(node);
}
ts.isRestParameter = isRestParameter;
function isDeclaredRestParam(node) {
    return node && node.dotDotDotToken !== undefined;
}
ts.isDeclaredRestParam = isDeclaredRestParam;
function getAssignmentTargetKind(node) {
    var parent = node.parent;
    while (true) {
        switch (parent.kind) {
            case 192:
                var binaryOperator = parent.operatorToken.kind;
                return isAssignmentOperator(binaryOperator) && parent.left === node ?
                    binaryOperator === 57 ? 1 : 2 :
                    0;
            case 190:
            case 191:
                var unaryOperator = parent.operator;
                return unaryOperator === 42 || unaryOperator === 43 ? 2 : 0;
            case 212:
            case 213:
                return parent.initializer === node ? 1 : 0;
            case 183:
            case 175:
            case 196:
                node = parent;
                break;
            case 258:
                if (parent.name !== node) {
                    return 0;
                }
            case 257:
                node = parent.parent;
                break;
            default:
                return 0;
        }
        parent = node.parent;
    }
}
ts.getAssignmentTargetKind = getAssignmentTargetKind;
function isAssignmentTarget(node) {
    return getAssignmentTargetKind(node) !== 0;
}
ts.isAssignmentTarget = isAssignmentTarget;
function isNodeDescendantOf(node, ancestor) {
    while (node) {
        if (node === ancestor)
            return true;
        node = node.parent;
    }
    return false;
}
ts.isNodeDescendantOf = isNodeDescendantOf;
function isInAmbientContext(node) {
    while (node) {
        if (hasModifier(node, 2) || (node.kind === 261 && node.isDeclarationFile)) {
            return true;
        }
        node = node.parent;
    }
    return false;
}
ts.isInAmbientContext = isInAmbientContext;
function isDeclarationName(name) {
    if (name.kind !== 70 && name.kind !== 9 && name.kind !== 8) {
        return false;
    }
    var parent = name.parent;
    if (parent.kind === 239 || parent.kind === 243) {
        if (parent.propertyName) {
            return true;
        }
    }
    if (isDeclaration(parent)) {
        return parent.name === name;
    }
    return false;
}
ts.isDeclarationName = isDeclarationName;
function isLiteralComputedPropertyDeclarationName(node) {
    return (node.kind === 9 || node.kind === 8) &&
        node.parent.kind === 142 &&
        isDeclaration(node.parent.parent);
}
ts.isLiteralComputedPropertyDeclarationName = isLiteralComputedPropertyDeclarationName;
function isIdentifierName(node) {
    var parent = node.parent;
    switch (parent.kind) {
        case 147:
        case 146:
        case 149:
        case 148:
        case 151:
        case 152:
        case 260:
        case 257:
        case 177:
            return parent.name === node;
        case 141:
            if (parent.right === node) {
                while (parent.kind === 141) {
                    parent = parent.parent;
                }
                return parent.kind === 160;
            }
            return false;
        case 174:
        case 239:
            return parent.propertyName === node;
        case 243:
            return true;
    }
    return false;
}
ts.isIdentifierName = isIdentifierName;
function isAliasSymbolDeclaration(node) {
    return node.kind === 234 ||
        node.kind === 233 ||
        node.kind === 236 && !!node.name ||
        node.kind === 237 ||
        node.kind === 239 ||
        node.kind === 243 ||
        node.kind === 240 && exportAssignmentIsAlias(node);
}
ts.isAliasSymbolDeclaration = isAliasSymbolDeclaration;
function exportAssignmentIsAlias(node) {
    return isEntityNameExpression(node.expression);
}
ts.exportAssignmentIsAlias = exportAssignmentIsAlias;
function getClassExtendsHeritageClauseElement(node) {
    var heritageClause = getHeritageClause(node.heritageClauses, 84);
    return heritageClause && heritageClause.types.length > 0 ? heritageClause.types[0] : undefined;
}
ts.getClassExtendsHeritageClauseElement = getClassExtendsHeritageClauseElement;
function getClassImplementsHeritageClauseElements(node) {
    var heritageClause = getHeritageClause(node.heritageClauses, 107);
    return heritageClause ? heritageClause.types : undefined;
}
ts.getClassImplementsHeritageClauseElements = getClassImplementsHeritageClauseElements;
function getInterfaceBaseTypeNodes(node) {
    var heritageClause = getHeritageClause(node.heritageClauses, 84);
    return heritageClause ? heritageClause.types : undefined;
}
ts.getInterfaceBaseTypeNodes = getInterfaceBaseTypeNodes;
function getHeritageClause(clauses, kind) {
    if (clauses) {
        for (var _i = 0, clauses_1 = clauses; _i < clauses_1.length; _i++) {
            var clause = clauses_1[_i];
            if (clause.token === kind) {
                return clause;
            }
        }
    }
    return undefined;
}
ts.getHeritageClause = getHeritageClause;
function tryResolveScriptReference(host, sourceFile, reference) {
    if (!host.getCompilerOptions().noResolve) {
        var referenceFileName = ts.isRootedDiskPath(reference.fileName) ? reference.fileName : ts.combinePaths(ts.getDirectoryPath(sourceFile.fileName), reference.fileName);
        return host.getSourceFile(referenceFileName);
    }
}
ts.tryResolveScriptReference = tryResolveScriptReference;
function getAncestor(node, kind) {
    while (node) {
        if (node.kind === kind) {
            return node;
        }
        node = node.parent;
    }
    return undefined;
}
ts.getAncestor = getAncestor;
function getFileReferenceFromReferencePath(comment, commentRange) {
    var simpleReferenceRegEx = /^\/\/\/\s*<reference\s+/gim;
    var isNoDefaultLibRegEx = /^(\/\/\/\s*<reference\s+no-default-lib\s*=\s*)('|")(.+?)\2\s*\/>/gim;
    if (simpleReferenceRegEx.test(comment)) {
        if (isNoDefaultLibRegEx.test(comment)) {
            return {
                isNoDefaultLib: true
            };
        }
        else {
            var refMatchResult = ts.fullTripleSlashReferencePathRegEx.exec(comment);
            var refLibResult = !refMatchResult && ts.fullTripleSlashReferenceTypeReferenceDirectiveRegEx.exec(comment);
            if (refMatchResult || refLibResult) {
                var start = commentRange.pos;
                var end = commentRange.end;
                return {
                    fileReference: {
                        pos: start,
                        end: end,
                        fileName: (refMatchResult || refLibResult)[3]
                    },
                    isNoDefaultLib: false,
                    isTypeReferenceDirective: !!refLibResult
                };
            }
            return {
                diagnosticMessage: ts.Diagnostics.Invalid_reference_directive_syntax,
                isNoDefaultLib: false
            };
        }
    }
    return undefined;
}
ts.getFileReferenceFromReferencePath = getFileReferenceFromReferencePath;
function isKeyword(token) {
    return 71 <= token && token <= 140;
}
ts.isKeyword = isKeyword;
function isTrivia(token) {
    return 2 <= token && token <= 7;
}
ts.isTrivia = isTrivia;
function isAsyncFunctionLike(node) {
    return isFunctionLike(node) && hasModifier(node, 256) && !isAccessor(node);
}
ts.isAsyncFunctionLike = isAsyncFunctionLike;
function isStringOrNumericLiteral(node) {
    var kind = node.kind;
    return kind === 9
        || kind === 8;
}
ts.isStringOrNumericLiteral = isStringOrNumericLiteral;
function hasDynamicName(declaration) {
    return declaration.name && isDynamicName(declaration.name);
}
ts.hasDynamicName = hasDynamicName;
function isDynamicName(name) {
    return name.kind === 142 &&
        !isStringOrNumericLiteral(name.expression) &&
        !isWellKnownSymbolSyntactically(name.expression);
}
ts.isDynamicName = isDynamicName;
function isWellKnownSymbolSyntactically(node) {
    return isPropertyAccessExpression(node) && isESSymbolIdentifier(node.expression);
}
ts.isWellKnownSymbolSyntactically = isWellKnownSymbolSyntactically;
function getPropertyNameForPropertyNameNode(name) {
    if (name.kind === 70 || name.kind === 9 || name.kind === 8 || name.kind === 144) {
        return name.text;
    }
    if (name.kind === 142) {
        var nameExpression = name.expression;
        if (isWellKnownSymbolSyntactically(nameExpression)) {
            var rightHandSideName = nameExpression.name.text;
            return getPropertyNameForKnownSymbolName(rightHandSideName);
        }
        else if (nameExpression.kind === 9 || nameExpression.kind === 8) {
            return nameExpression.text;
        }
    }
    return undefined;
}
ts.getPropertyNameForPropertyNameNode = getPropertyNameForPropertyNameNode;
function getPropertyNameForKnownSymbolName(symbolName) {
    return "__@" + symbolName;
}
ts.getPropertyNameForKnownSymbolName = getPropertyNameForKnownSymbolName;
function isESSymbolIdentifier(node) {
    return node.kind === 70 && node.text === "Symbol";
}
ts.isESSymbolIdentifier = isESSymbolIdentifier;
function isPushOrUnshiftIdentifier(node) {
    return node.text === "push" || node.text === "unshift";
}
ts.isPushOrUnshiftIdentifier = isPushOrUnshiftIdentifier;
function isModifierKind(token) {
    switch (token) {
        case 116:
        case 119:
        case 75:
        case 123:
        case 78:
        case 83:
        case 113:
        case 111:
        case 112:
        case 130:
        case 114:
            return true;
    }
    return false;
}
ts.isModifierKind = isModifierKind;
function isParameterDeclaration(node) {
    var root = getRootDeclaration(node);
    return root.kind === 144;
}
ts.isParameterDeclaration = isParameterDeclaration;
function getRootDeclaration(node) {
    while (node.kind === 174) {
        node = node.parent.parent;
    }
    return node;
}
ts.getRootDeclaration = getRootDeclaration;
function nodeStartsNewLexicalEnvironment(node) {
    var kind = node.kind;
    return kind === 150
        || kind === 184
        || kind === 225
        || kind === 185
        || kind === 149
        || kind === 151
        || kind === 152
        || kind === 230
        || kind === 261;
}
ts.nodeStartsNewLexicalEnvironment = nodeStartsNewLexicalEnvironment;
function nodeIsSynthesized(node) {
    return ts.positionIsSynthesized(node.pos)
        || ts.positionIsSynthesized(node.end);
}
ts.nodeIsSynthesized = nodeIsSynthesized;
function getOriginalNode(node, nodeTest) {
    if (node) {
        while (node.original !== undefined) {
            node = node.original;
        }
    }
    return !nodeTest || nodeTest(node) ? node : undefined;
}
ts.getOriginalNode = getOriginalNode;
function isParseTreeNode(node) {
    return (node.flags & 8) === 0;
}
ts.isParseTreeNode = isParseTreeNode;
function getParseTreeNode(node, nodeTest) {
    if (isParseTreeNode(node)) {
        return node;
    }
    node = getOriginalNode(node);
    if (isParseTreeNode(node) && (!nodeTest || nodeTest(node))) {
        return node;
    }
    return undefined;
}
ts.getParseTreeNode = getParseTreeNode;
function getOriginalSourceFiles(sourceFiles) {
    var originalSourceFiles = [];
    for (var _i = 0, sourceFiles_1 = sourceFiles; _i < sourceFiles_1.length; _i++) {
        var sourceFile = sourceFiles_1[_i];
        var originalSourceFile = getParseTreeNode(sourceFile, isSourceFile);
        if (originalSourceFile) {
            originalSourceFiles.push(originalSourceFile);
        }
    }
    return originalSourceFiles;
}
ts.getOriginalSourceFiles = getOriginalSourceFiles;
function getOriginalNodeId(node) {
    node = getOriginalNode(node);
    return node ? ts.getNodeId(node) : 0;
}
ts.getOriginalNodeId = getOriginalNodeId;
function getExpressionAssociativity(expression) {
    var operator = getOperator(expression);
    var hasArguments = expression.kind === 180 && expression.arguments !== undefined;
    return getOperatorAssociativity(expression.kind, operator, hasArguments);
}
ts.getExpressionAssociativity = getExpressionAssociativity;
function getOperatorAssociativity(kind, operator, hasArguments) {
    switch (kind) {
        case 180:
            return hasArguments ? 0 : 1;
        case 190:
        case 187:
        case 188:
        case 186:
        case 189:
        case 193:
        case 195:
            return 1;
        case 192:
            switch (operator) {
                case 39:
                case 57:
                case 58:
                case 59:
                case 61:
                case 60:
                case 62:
                case 63:
                case 64:
                case 65:
                case 66:
                case 67:
                case 69:
                case 68:
                    return 1;
            }
    }
    return 0;
}
ts.getOperatorAssociativity = getOperatorAssociativity;
function getExpressionPrecedence(expression) {
    var operator = getOperator(expression);
    var hasArguments = expression.kind === 180 && expression.arguments !== undefined;
    return getOperatorPrecedence(expression.kind, operator, hasArguments);
}
ts.getExpressionPrecedence = getExpressionPrecedence;
function getOperator(expression) {
    if (expression.kind === 192) {
        return expression.operatorToken.kind;
    }
    else if (expression.kind === 190 || expression.kind === 191) {
        return expression.operator;
    }
    else {
        return expression.kind;
    }
}
ts.getOperator = getOperator;
function getOperatorPrecedence(nodeKind, operatorKind, hasArguments) {
    switch (nodeKind) {
        case 98:
        case 96:
        case 70:
        case 94:
        case 100:
        case 85:
        case 8:
        case 9:
        case 175:
        case 176:
        case 184:
        case 185:
        case 197:
        case 246:
        case 247:
        case 11:
        case 12:
        case 194:
        case 183:
        case 198:
            return 19;
        case 181:
        case 177:
        case 178:
            return 18;
        case 180:
            return hasArguments ? 18 : 17;
        case 179:
            return 17;
        case 191:
            return 16;
        case 190:
        case 187:
        case 188:
        case 186:
        case 189:
            return 15;
        case 192:
            switch (operatorKind) {
                case 50:
                case 51:
                    return 15;
                case 39:
                case 38:
                case 40:
                case 41:
                    return 14;
                case 36:
                case 37:
                    return 13;
                case 44:
                case 45:
                case 46:
                    return 12;
                case 26:
                case 29:
                case 28:
                case 30:
                case 91:
                case 92:
                    return 11;
                case 31:
                case 33:
                case 32:
                case 34:
                    return 10;
                case 47:
                    return 9;
                case 49:
                    return 8;
                case 48:
                    return 7;
                case 52:
                    return 6;
                case 53:
                    return 5;
                case 57:
                case 58:
                case 59:
                case 61:
                case 60:
                case 62:
                case 63:
                case 64:
                case 65:
                case 66:
                case 67:
                case 69:
                case 68:
                    return 3;
                case 25:
                    return 0;
                default:
                    return -1;
            }
        case 193:
            return 4;
        case 195:
            return 2;
        case 196:
            return 1;
        default:
            return -1;
    }
}
ts.getOperatorPrecedence = getOperatorPrecedence;
function createDiagnosticCollection() {
    var nonFileDiagnostics = [];
    var fileDiagnostics = ts.createMap();
    var diagnosticsModified = false;
    var modificationCount = 0;
    return {
        add: add,
        getGlobalDiagnostics: getGlobalDiagnostics,
        getDiagnostics: getDiagnostics,
        getModificationCount: getModificationCount,
        reattachFileDiagnostics: reattachFileDiagnostics
    };
    function getModificationCount() {
        return modificationCount;
    }
    function reattachFileDiagnostics(newFile) {
        if (!ts.hasProperty(fileDiagnostics, newFile.fileName)) {
            return;
        }
        for (var _i = 0, _a = fileDiagnostics[newFile.fileName]; _i < _a.length; _i++) {
            var diagnostic = _a[_i];
            diagnostic.file = newFile;
        }
    }
    function add(diagnostic) {
        var diagnostics;
        if (diagnostic.file) {
            diagnostics = fileDiagnostics[diagnostic.file.fileName];
            if (!diagnostics) {
                diagnostics = [];
                fileDiagnostics[diagnostic.file.fileName] = diagnostics;
            }
        }
        else {
            diagnostics = nonFileDiagnostics;
        }
        diagnostics.push(diagnostic);
        diagnosticsModified = true;
        modificationCount++;
    }
    function getGlobalDiagnostics() {
        sortAndDeduplicate();
        return nonFileDiagnostics;
    }
    function getDiagnostics(fileName) {
        sortAndDeduplicate();
        if (fileName) {
            return fileDiagnostics[fileName] || [];
        }
        var allDiagnostics = [];
        function pushDiagnostic(d) {
            allDiagnostics.push(d);
        }
        ts.forEach(nonFileDiagnostics, pushDiagnostic);
        for (var key in fileDiagnostics) {
            ts.forEach(fileDiagnostics[key], pushDiagnostic);
        }
        return ts.sortAndDeduplicateDiagnostics(allDiagnostics);
    }
    function sortAndDeduplicate() {
        if (!diagnosticsModified) {
            return;
        }
        diagnosticsModified = false;
        nonFileDiagnostics = ts.sortAndDeduplicateDiagnostics(nonFileDiagnostics);
        for (var key in fileDiagnostics) {
            fileDiagnostics[key] = ts.sortAndDeduplicateDiagnostics(fileDiagnostics[key]);
        }
    }
}
ts.createDiagnosticCollection = createDiagnosticCollection;
var escapedCharsRegExp = /[\\\"\u0000-\u001f\t\v\f\b\r\n\u2028\u2029\u0085]/g;
var escapedCharsMap = ts.createMap({
    "\0": "\\0",
    "\t": "\\t",
    "\v": "\\v",
    "\f": "\\f",
    "\b": "\\b",
    "\r": "\\r",
    "\n": "\\n",
    "\\": "\\\\",
    "\"": "\\\"",
    "\u2028": "\\u2028",
    "\u2029": "\\u2029",
    "\u0085": "\\u0085"
});
function escapeString(s) {
    return s.replace(escapedCharsRegExp, getReplacement);
}
ts.escapeString = escapeString;
function getReplacement(c) {
    return escapedCharsMap[c] || get16BitUnicodeEscapeSequence(c.charCodeAt(0));
}
function isIntrinsicJsxName(name) {
    var ch = name.substr(0, 1);
    return ch.toLowerCase() === ch;
}
ts.isIntrinsicJsxName = isIntrinsicJsxName;
function get16BitUnicodeEscapeSequence(charCode) {
    var hexCharCode = charCode.toString(16).toUpperCase();
    var paddedHexCode = ("0000" + hexCharCode).slice(-4);
    return "\\u" + paddedHexCode;
}
var nonAsciiCharacters = /[^\u0000-\u007F]/g;
function escapeNonAsciiCharacters(s) {
    return nonAsciiCharacters.test(s) ?
        s.replace(nonAsciiCharacters, function (c) { return get16BitUnicodeEscapeSequence(c.charCodeAt(0)); }) :
        s;
}
ts.escapeNonAsciiCharacters = escapeNonAsciiCharacters;
var indentStrings = ["", "    "];
function getIndentString(level) {
    if (indentStrings[level] === undefined) {
        indentStrings[level] = getIndentString(level - 1) + indentStrings[1];
    }
    return indentStrings[level];
}
ts.getIndentString = getIndentString;
function getIndentSize() {
    return indentStrings[1].length;
}
ts.getIndentSize = getIndentSize;
function createTextWriter(newLine) {
    var output;
    var indent;
    var lineStart;
    var lineCount;
    var linePos;
    function write(s) {
        if (s && s.length) {
            if (lineStart) {
                output += getIndentString(indent);
                lineStart = false;
            }
            output += s;
        }
    }
    function reset() {
        output = "";
        indent = 0;
        lineStart = true;
        lineCount = 0;
        linePos = 0;
    }
    function rawWrite(s) {
        if (s !== undefined) {
            if (lineStart) {
                lineStart = false;
            }
            output += s;
        }
    }
    function writeLiteral(s) {
        if (s && s.length) {
            write(s);
            var lineStartsOfS = ts.computeLineStarts(s);
            if (lineStartsOfS.length > 1) {
                lineCount = lineCount + lineStartsOfS.length - 1;
                linePos = output.length - s.length + ts.lastOrUndefined(lineStartsOfS);
            }
        }
    }
    function writeLine() {
        if (!lineStart) {
            output += newLine;
            lineCount++;
            linePos = output.length;
            lineStart = true;
        }
    }
    function writeTextOfNode(text, node) {
        write(getTextOfNodeFromSourceText(text, node));
    }
    reset();
    return {
        write: write,
        rawWrite: rawWrite,
        writeTextOfNode: writeTextOfNode,
        writeLiteral: writeLiteral,
        writeLine: writeLine,
        increaseIndent: function () { indent++; },
        decreaseIndent: function () { indent--; },
        getIndent: function () { return indent; },
        getTextPos: function () { return output.length; },
        getLine: function () { return lineCount + 1; },
        getColumn: function () { return lineStart ? indent * getIndentSize() + 1 : output.length - linePos + 1; },
        getText: function () { return output; },
        isAtStartOfLine: function () { return lineStart; },
        reset: reset
    };
}
ts.createTextWriter = createTextWriter;
function getResolvedExternalModuleName(host, file) {
    return file.moduleName || getExternalModuleNameFromPath(host, file.fileName);
}
ts.getResolvedExternalModuleName = getResolvedExternalModuleName;
function getExternalModuleNameFromDeclaration(host, resolver, declaration) {
    var file = resolver.getExternalModuleFileFromDeclaration(declaration);
    if (!file || isDeclarationFile(file)) {
        return undefined;
    }
    return getResolvedExternalModuleName(host, file);
}
ts.getExternalModuleNameFromDeclaration = getExternalModuleNameFromDeclaration;
function getExternalModuleNameFromPath(host, fileName) {
    var getCanonicalFileName = function (f) { return host.getCanonicalFileName(f); };
    var dir = ts.toPath(host.getCommonSourceDirectory(), host.getCurrentDirectory(), getCanonicalFileName);
    var filePath = ts.getNormalizedAbsolutePath(fileName, host.getCurrentDirectory());
    var relativePath = ts.getRelativePathToDirectoryOrUrl(dir, filePath, dir, getCanonicalFileName, false);
    return ts.removeFileExtension(relativePath);
}
ts.getExternalModuleNameFromPath = getExternalModuleNameFromPath;
function getOwnEmitOutputFilePath(sourceFile, host, extension) {
    var compilerOptions = host.getCompilerOptions();
    var emitOutputFilePathWithoutExtension;
    if (compilerOptions.outDir) {
        emitOutputFilePathWithoutExtension = ts.removeFileExtension(getSourceFilePathInNewDir(sourceFile, host, compilerOptions.outDir));
    }
    else {
        emitOutputFilePathWithoutExtension = ts.removeFileExtension(sourceFile.fileName);
    }
    return emitOutputFilePathWithoutExtension + extension;
}
ts.getOwnEmitOutputFilePath = getOwnEmitOutputFilePath;
function getDeclarationEmitOutputFilePath(sourceFile, host) {
    var options = host.getCompilerOptions();
    var outputDir = options.declarationDir || options.outDir;
    var path = outputDir
        ? getSourceFilePathInNewDir(sourceFile, host, outputDir)
        : sourceFile.fileName;
    return ts.removeFileExtension(path) + ".d.ts";
}
ts.getDeclarationEmitOutputFilePath = getDeclarationEmitOutputFilePath;
function getSourceFilesToEmit(host, targetSourceFile) {
    var options = host.getCompilerOptions();
    if (options.outFile || options.out) {
        var moduleKind = ts.getEmitModuleKind(options);
        var moduleEmitEnabled = moduleKind === ts.ModuleKind.AMD || moduleKind === ts.ModuleKind.System;
        var sourceFiles = getAllEmittableSourceFiles();
        return ts.filter(sourceFiles, moduleEmitEnabled ? isNonDeclarationFile : isBundleEmitNonExternalModule);
    }
    else {
        var sourceFiles = targetSourceFile === undefined ? getAllEmittableSourceFiles() : [targetSourceFile];
        return filterSourceFilesInDirectory(sourceFiles, function (file) { return host.isSourceFileFromExternalLibrary(file); });
    }
    function getAllEmittableSourceFiles() {
        return options.noEmitForJsFiles ? ts.filter(host.getSourceFiles(), function (sourceFile) { return !isSourceFileJavaScript(sourceFile); }) : host.getSourceFiles();
    }
}
ts.getSourceFilesToEmit = getSourceFilesToEmit;
function filterSourceFilesInDirectory(sourceFiles, isSourceFileFromExternalLibrary) {
    return ts.filter(sourceFiles, function (file) { return shouldEmitInDirectory(file, isSourceFileFromExternalLibrary); });
}
ts.filterSourceFilesInDirectory = filterSourceFilesInDirectory;
function isNonDeclarationFile(sourceFile) {
    return !isDeclarationFile(sourceFile);
}
function shouldEmitInDirectory(sourceFile, isSourceFileFromExternalLibrary) {
    return isNonDeclarationFile(sourceFile) && !isSourceFileFromExternalLibrary(sourceFile);
}
function isBundleEmitNonExternalModule(sourceFile) {
    return isNonDeclarationFile(sourceFile) && !ts.isExternalModule(sourceFile);
}
function forEachTransformedEmitFile(host, sourceFiles, action, emitOnlyDtsFiles) {
    var options = host.getCompilerOptions();
    if (options.outFile || options.out) {
        onBundledEmit(sourceFiles);
    }
    else {
        for (var _i = 0, sourceFiles_2 = sourceFiles; _i < sourceFiles_2.length; _i++) {
            var sourceFile = sourceFiles_2[_i];
            if (!isDeclarationFile(sourceFile) && !host.isSourceFileFromExternalLibrary(sourceFile)) {
                onSingleFileEmit(host, sourceFile);
            }
        }
    }
    function onSingleFileEmit(host, sourceFile) {
        var extension = ".js";
        if (options.jsx === 1) {
            if (isSourceFileJavaScript(sourceFile)) {
                if (ts.fileExtensionIs(sourceFile.fileName, ".jsx")) {
                    extension = ".jsx";
                }
            }
            else if (sourceFile.languageVariant === 1) {
                extension = ".jsx";
            }
        }
        var jsFilePath = getOwnEmitOutputFilePath(sourceFile, host, extension);
        var sourceMapFilePath = getSourceMapFilePath(jsFilePath, options);
        var declarationFilePath = !isSourceFileJavaScript(sourceFile) && (options.declaration || emitOnlyDtsFiles) ? getDeclarationEmitOutputFilePath(sourceFile, host) : undefined;
        action(jsFilePath, sourceMapFilePath, declarationFilePath, [sourceFile], false);
    }
    function onBundledEmit(sourceFiles) {
        if (sourceFiles.length) {
            var jsFilePath = options.outFile || options.out;
            var sourceMapFilePath = getSourceMapFilePath(jsFilePath, options);
            var declarationFilePath = options.declaration ? ts.removeFileExtension(jsFilePath) + ".d.ts" : undefined;
            action(jsFilePath, sourceMapFilePath, declarationFilePath, sourceFiles, true);
        }
    }
}
ts.forEachTransformedEmitFile = forEachTransformedEmitFile;
function getSourceMapFilePath(jsFilePath, options) {
    return options.sourceMap ? jsFilePath + ".map" : undefined;
}
function forEachExpectedEmitFile(host, action, targetSourceFile, emitOnlyDtsFiles) {
    var options = host.getCompilerOptions();
    if (options.outFile || options.out) {
        onBundledEmit(host);
    }
    else {
        var sourceFiles = targetSourceFile === undefined ? getSourceFilesToEmit(host) : [targetSourceFile];
        for (var _i = 0, sourceFiles_3 = sourceFiles; _i < sourceFiles_3.length; _i++) {
            var sourceFile = sourceFiles_3[_i];
            if (shouldEmitInDirectory(sourceFile, function (file) { return host.isSourceFileFromExternalLibrary(file); })) {
                onSingleFileEmit(host, sourceFile);
            }
        }
    }
    function onSingleFileEmit(host, sourceFile) {
        var extension = ".js";
        if (options.jsx === 1) {
            if (isSourceFileJavaScript(sourceFile)) {
                if (ts.fileExtensionIs(sourceFile.fileName, ".jsx")) {
                    extension = ".jsx";
                }
            }
            else if (sourceFile.languageVariant === 1) {
                extension = ".jsx";
            }
        }
        var jsFilePath = getOwnEmitOutputFilePath(sourceFile, host, extension);
        var declarationFilePath = !isSourceFileJavaScript(sourceFile) && (emitOnlyDtsFiles || options.declaration) ? getDeclarationEmitOutputFilePath(sourceFile, host) : undefined;
        var emitFileNames = {
            jsFilePath: jsFilePath,
            sourceMapFilePath: getSourceMapFilePath(jsFilePath, options),
            declarationFilePath: declarationFilePath
        };
        action(emitFileNames, [sourceFile], false, emitOnlyDtsFiles);
    }
    function onBundledEmit(host) {
        var bundledSources = ts.filter(getSourceFilesToEmit(host), function (sourceFile) { return !isDeclarationFile(sourceFile) &&
            !host.isSourceFileFromExternalLibrary(sourceFile) &&
            (!ts.isExternalModule(sourceFile) ||
                !!ts.getEmitModuleKind(options)); });
        if (bundledSources.length) {
            var jsFilePath = options.outFile || options.out;
            var emitFileNames = {
                jsFilePath: jsFilePath,
                sourceMapFilePath: getSourceMapFilePath(jsFilePath, options),
                declarationFilePath: options.declaration ? ts.removeFileExtension(jsFilePath) + ".d.ts" : undefined
            };
            action(emitFileNames, bundledSources, true, emitOnlyDtsFiles);
        }
    }
}
ts.forEachExpectedEmitFile = forEachExpectedEmitFile;
function getSourceFilePathInNewDir(sourceFile, host, newDirPath) {
    var sourceFilePath = ts.getNormalizedAbsolutePath(sourceFile.fileName, host.getCurrentDirectory());
    var commonSourceDirectory = host.getCommonSourceDirectory();
    var isSourceFileInCommonSourceDirectory = host.getCanonicalFileName(sourceFilePath).indexOf(host.getCanonicalFileName(commonSourceDirectory)) === 0;
    sourceFilePath = isSourceFileInCommonSourceDirectory ? sourceFilePath.substring(commonSourceDirectory.length) : sourceFilePath;
    return ts.combinePaths(newDirPath, sourceFilePath);
}
ts.getSourceFilePathInNewDir = getSourceFilePathInNewDir;
function writeFile(host, diagnostics, fileName, data, writeByteOrderMark, sourceFiles) {
    host.writeFile(fileName, data, writeByteOrderMark, function (hostErrorMessage) {
        diagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Could_not_write_file_0_Colon_1, fileName, hostErrorMessage));
    }, sourceFiles);
}
ts.writeFile = writeFile;
function getLineOfLocalPosition(currentSourceFile, pos) {
    return ts.getLineAndCharacterOfPosition(currentSourceFile, pos).line;
}
ts.getLineOfLocalPosition = getLineOfLocalPosition;
function getLineOfLocalPositionFromLineMap(lineMap, pos) {
    return ts.computeLineAndCharacterOfPosition(lineMap, pos).line;
}
ts.getLineOfLocalPositionFromLineMap = getLineOfLocalPositionFromLineMap;
function getFirstConstructorWithBody(node) {
    return ts.forEach(node.members, function (member) {
        if (member.kind === 150 && nodeIsPresent(member.body)) {
            return member;
        }
    });
}
ts.getFirstConstructorWithBody = getFirstConstructorWithBody;
function getSetAccessorTypeAnnotationNode(accessor) {
    if (accessor && accessor.parameters.length > 0) {
        var hasThis = accessor.parameters.length === 2 && parameterIsThisKeyword(accessor.parameters[0]);
        return accessor.parameters[hasThis ? 1 : 0].type;
    }
}
ts.getSetAccessorTypeAnnotationNode = getSetAccessorTypeAnnotationNode;
function getThisParameter(signature) {
    if (signature.parameters.length) {
        var thisParameter = signature.parameters[0];
        if (parameterIsThisKeyword(thisParameter)) {
            return thisParameter;
        }
    }
}
ts.getThisParameter = getThisParameter;
function parameterIsThisKeyword(parameter) {
    return isThisIdentifier(parameter.name);
}
ts.parameterIsThisKeyword = parameterIsThisKeyword;
function isThisIdentifier(node) {
    return node && node.kind === 70 && identifierIsThisKeyword(node);
}
ts.isThisIdentifier = isThisIdentifier;
function identifierIsThisKeyword(id) {
    return id.originalKeywordKind === 98;
}
ts.identifierIsThisKeyword = identifierIsThisKeyword;
function getAllAccessorDeclarations(declarations, accessor) {
    var firstAccessor;
    var secondAccessor;
    var getAccessor;
    var setAccessor;
    if (hasDynamicName(accessor)) {
        firstAccessor = accessor;
        if (accessor.kind === 151) {
            getAccessor = accessor;
        }
        else if (accessor.kind === 152) {
            setAccessor = accessor;
        }
        else {
            ts.Debug.fail("Accessor has wrong kind");
        }
    }
    else {
        ts.forEach(declarations, function (member) {
            if ((member.kind === 151 || member.kind === 152)
                && hasModifier(member, 32) === hasModifier(accessor, 32)) {
                var memberName = getPropertyNameForPropertyNameNode(member.name);
                var accessorName = getPropertyNameForPropertyNameNode(accessor.name);
                if (memberName === accessorName) {
                    if (!firstAccessor) {
                        firstAccessor = member;
                    }
                    else if (!secondAccessor) {
                        secondAccessor = member;
                    }
                    if (member.kind === 151 && !getAccessor) {
                        getAccessor = member;
                    }
                    if (member.kind === 152 && !setAccessor) {
                        setAccessor = member;
                    }
                }
            }
        });
    }
    return {
        firstAccessor: firstAccessor,
        secondAccessor: secondAccessor,
        getAccessor: getAccessor,
        setAccessor: setAccessor
    };
}
ts.getAllAccessorDeclarations = getAllAccessorDeclarations;
function emitNewLineBeforeLeadingComments(lineMap, writer, node, leadingComments) {
    emitNewLineBeforeLeadingCommentsOfPosition(lineMap, writer, node.pos, leadingComments);
}
ts.emitNewLineBeforeLeadingComments = emitNewLineBeforeLeadingComments;
function emitNewLineBeforeLeadingCommentsOfPosition(lineMap, writer, pos, leadingComments) {
    if (leadingComments && leadingComments.length && pos !== leadingComments[0].pos &&
        getLineOfLocalPositionFromLineMap(lineMap, pos) !== getLineOfLocalPositionFromLineMap(lineMap, leadingComments[0].pos)) {
        writer.writeLine();
    }
}
ts.emitNewLineBeforeLeadingCommentsOfPosition = emitNewLineBeforeLeadingCommentsOfPosition;
function emitNewLineBeforeLeadingCommentOfPosition(lineMap, writer, pos, commentPos) {
    if (pos !== commentPos &&
        getLineOfLocalPositionFromLineMap(lineMap, pos) !== getLineOfLocalPositionFromLineMap(lineMap, commentPos)) {
        writer.writeLine();
    }
}
ts.emitNewLineBeforeLeadingCommentOfPosition = emitNewLineBeforeLeadingCommentOfPosition;
function emitComments(text, lineMap, writer, comments, leadingSeparator, trailingSeparator, newLine, writeComment) {
    if (comments && comments.length > 0) {
        if (leadingSeparator) {
            writer.write(" ");
        }
        var emitInterveningSeparator = false;
        for (var _i = 0, comments_1 = comments; _i < comments_1.length; _i++) {
            var comment = comments_1[_i];
            if (emitInterveningSeparator) {
                writer.write(" ");
                emitInterveningSeparator = false;
            }
            writeComment(text, lineMap, writer, comment.pos, comment.end, newLine);
            if (comment.hasTrailingNewLine) {
                writer.writeLine();
            }
            else {
                emitInterveningSeparator = true;
            }
        }
        if (emitInterveningSeparator && trailingSeparator) {
            writer.write(" ");
        }
    }
}
ts.emitComments = emitComments;
function emitDetachedComments(text, lineMap, writer, writeComment, node, newLine, removeComments) {
    var leadingComments;
    var currentDetachedCommentInfo;
    if (removeComments) {
        if (node.pos === 0) {
            leadingComments = ts.filter(ts.getLeadingCommentRanges(text, node.pos), isPinnedComment);
        }
    }
    else {
        leadingComments = ts.getLeadingCommentRanges(text, node.pos);
    }
    if (leadingComments) {
        var detachedComments = [];
        var lastComment = void 0;
        for (var _i = 0, leadingComments_1 = leadingComments; _i < leadingComments_1.length; _i++) {
            var comment = leadingComments_1[_i];
            if (lastComment) {
                var lastCommentLine = getLineOfLocalPositionFromLineMap(lineMap, lastComment.end);
                var commentLine = getLineOfLocalPositionFromLineMap(lineMap, comment.pos);
                if (commentLine >= lastCommentLine + 2) {
                    break;
                }
            }
            detachedComments.push(comment);
            lastComment = comment;
        }
        if (detachedComments.length) {
            var lastCommentLine = getLineOfLocalPositionFromLineMap(lineMap, ts.lastOrUndefined(detachedComments).end);
            var nodeLine = getLineOfLocalPositionFromLineMap(lineMap, ts.skipTrivia(text, node.pos));
            if (nodeLine >= lastCommentLine + 2) {
                emitNewLineBeforeLeadingComments(lineMap, writer, node, leadingComments);
                emitComments(text, lineMap, writer, detachedComments, false, true, newLine, writeComment);
                currentDetachedCommentInfo = { nodePos: node.pos, detachedCommentEndPos: ts.lastOrUndefined(detachedComments).end };
            }
        }
    }
    return currentDetachedCommentInfo;
    function isPinnedComment(comment) {
        return text.charCodeAt(comment.pos + 1) === 42 &&
            text.charCodeAt(comment.pos + 2) === 33;
    }
}
ts.emitDetachedComments = emitDetachedComments;
function writeCommentRange(text, lineMap, writer, commentPos, commentEnd, newLine) {
    if (text.charCodeAt(commentPos + 1) === 42) {
        var firstCommentLineAndCharacter = ts.computeLineAndCharacterOfPosition(lineMap, commentPos);
        var lineCount = lineMap.length;
        var firstCommentLineIndent = void 0;
        for (var pos = commentPos, currentLine = firstCommentLineAndCharacter.line; pos < commentEnd; currentLine++) {
            var nextLineStart = (currentLine + 1) === lineCount
                ? text.length + 1
                : lineMap[currentLine + 1];
            if (pos !== commentPos) {
                if (firstCommentLineIndent === undefined) {
                    firstCommentLineIndent = calculateIndent(text, lineMap[firstCommentLineAndCharacter.line], commentPos);
                }
                var currentWriterIndentSpacing = writer.getIndent() * getIndentSize();
                var spacesToEmit = currentWriterIndentSpacing - firstCommentLineIndent + calculateIndent(text, pos, nextLineStart);
                if (spacesToEmit > 0) {
                    var numberOfSingleSpacesToEmit = spacesToEmit % getIndentSize();
                    var indentSizeSpaceString = getIndentString((spacesToEmit - numberOfSingleSpacesToEmit) / getIndentSize());
                    writer.rawWrite(indentSizeSpaceString);
                    while (numberOfSingleSpacesToEmit) {
                        writer.rawWrite(" ");
                        numberOfSingleSpacesToEmit--;
                    }
                }
                else {
                    writer.rawWrite("");
                }
            }
            writeTrimmedCurrentLine(text, commentEnd, writer, newLine, pos, nextLineStart);
            pos = nextLineStart;
        }
    }
    else {
        writer.write(text.substring(commentPos, commentEnd));
    }
}
ts.writeCommentRange = writeCommentRange;
function writeTrimmedCurrentLine(text, commentEnd, writer, newLine, pos, nextLineStart) {
    var end = Math.min(commentEnd, nextLineStart - 1);
    var currentLineText = text.substring(pos, end).replace(/^\s+|\s+$/g, "");
    if (currentLineText) {
        writer.write(currentLineText);
        if (end !== commentEnd) {
            writer.writeLine();
        }
    }
    else {
        writer.writeLiteral(newLine);
    }
}
function calculateIndent(text, pos, end) {
    var currentLineIndent = 0;
    for (; pos < end && ts.isWhiteSpaceSingleLine(text.charCodeAt(pos)); pos++) {
        if (text.charCodeAt(pos) === 9) {
            currentLineIndent += getIndentSize() - (currentLineIndent % getIndentSize());
        }
        else {
            currentLineIndent++;
        }
    }
    return currentLineIndent;
}
function hasModifiers(node) {
    return getModifierFlags(node) !== 0;
}
ts.hasModifiers = hasModifiers;
function hasModifier(node, flags) {
    return (getModifierFlags(node) & flags) !== 0;
}
ts.hasModifier = hasModifier;
function getModifierFlags(node) {
    if (node.modifierFlagsCache & 536870912) {
        return node.modifierFlagsCache & ~536870912;
    }
    var flags = 0;
    if (node.modifiers) {
        for (var _i = 0, _a = node.modifiers; _i < _a.length; _i++) {
            var modifier = _a[_i];
            flags |= modifierToFlag(modifier.kind);
        }
    }
    if (node.flags & 4 || (node.kind === 70 && node.isInJSDocNamespace)) {
        flags |= 1;
    }
    node.modifierFlagsCache = flags | 536870912;
    return flags;
}
ts.getModifierFlags = getModifierFlags;
function modifierToFlag(token) {
    switch (token) {
        case 114: return 32;
        case 113: return 4;
        case 112: return 16;
        case 111: return 8;
        case 116: return 128;
        case 83: return 1;
        case 123: return 2;
        case 75: return 2048;
        case 78: return 512;
        case 119: return 256;
        case 130: return 64;
    }
    return 0;
}
ts.modifierToFlag = modifierToFlag;
function isLogicalOperator(token) {
    return token === 53
        || token === 52
        || token === 50;
}
ts.isLogicalOperator = isLogicalOperator;
function isAssignmentOperator(token) {
    return token >= 57 && token <= 69;
}
ts.isAssignmentOperator = isAssignmentOperator;
function tryGetClassExtendingExpressionWithTypeArguments(node) {
    if (node.kind === 199 &&
        node.parent.token === 84 &&
        isClassLike(node.parent.parent)) {
        return node.parent.parent;
    }
}
ts.tryGetClassExtendingExpressionWithTypeArguments = tryGetClassExtendingExpressionWithTypeArguments;
function isAssignmentExpression(node, excludeCompoundAssignment) {
    return isBinaryExpression(node)
        && (excludeCompoundAssignment
            ? node.operatorToken.kind === 57
            : isAssignmentOperator(node.operatorToken.kind))
        && isLeftHandSideExpression(node.left);
}
ts.isAssignmentExpression = isAssignmentExpression;
function isDestructuringAssignment(node) {
    if (isAssignmentExpression(node, true)) {
        var kind = node.left.kind;
        return kind === 176
            || kind === 175;
    }
    return false;
}
ts.isDestructuringAssignment = isDestructuringAssignment;
function isSupportedExpressionWithTypeArguments(node) {
    return isSupportedExpressionWithTypeArgumentsRest(node.expression);
}
ts.isSupportedExpressionWithTypeArguments = isSupportedExpressionWithTypeArguments;
function isSupportedExpressionWithTypeArgumentsRest(node) {
    if (node.kind === 70) {
        return true;
    }
    else if (isPropertyAccessExpression(node)) {
        return isSupportedExpressionWithTypeArgumentsRest(node.expression);
    }
    else {
        return false;
    }
}
function isExpressionWithTypeArgumentsInClassExtendsClause(node) {
    return tryGetClassExtendingExpressionWithTypeArguments(node) !== undefined;
}
ts.isExpressionWithTypeArgumentsInClassExtendsClause = isExpressionWithTypeArgumentsInClassExtendsClause;
function isEntityNameExpression(node) {
    return node.kind === 70 ||
        node.kind === 177 && isEntityNameExpression(node.expression);
}
ts.isEntityNameExpression = isEntityNameExpression;
function isRightSideOfQualifiedNameOrPropertyAccess(node) {
    return (node.parent.kind === 141 && node.parent.right === node) ||
        (node.parent.kind === 177 && node.parent.name === node);
}
ts.isRightSideOfQualifiedNameOrPropertyAccess = isRightSideOfQualifiedNameOrPropertyAccess;
function isEmptyObjectLiteralOrArrayLiteral(expression) {
    var kind = expression.kind;
    if (kind === 176) {
        return expression.properties.length === 0;
    }
    if (kind === 175) {
        return expression.elements.length === 0;
    }
    return false;
}
ts.isEmptyObjectLiteralOrArrayLiteral = isEmptyObjectLiteralOrArrayLiteral;
function getLocalSymbolForExportDefault(symbol) {
    return symbol && symbol.valueDeclaration && hasModifier(symbol.valueDeclaration, 512) ? symbol.valueDeclaration.localSymbol : undefined;
}
ts.getLocalSymbolForExportDefault = getLocalSymbolForExportDefault;
function tryExtractTypeScriptExtension(fileName) {
    return ts.find(ts.supportedTypescriptExtensionsForExtractExtension, function (extension) { return ts.fileExtensionIs(fileName, extension); });
}
ts.tryExtractTypeScriptExtension = tryExtractTypeScriptExtension;
function getExpandedCharCodes(input) {
    var output = [];
    var length = input.length;
    for (var i = 0; i < length; i++) {
        var charCode = input.charCodeAt(i);
        if (charCode < 0x80) {
            output.push(charCode);
        }
        else if (charCode < 0x800) {
            output.push((charCode >> 6) | 192);
            output.push((charCode & 63) | 128);
        }
        else if (charCode < 0x10000) {
            output.push((charCode >> 12) | 224);
            output.push(((charCode >> 6) & 63) | 128);
            output.push((charCode & 63) | 128);
        }
        else if (charCode < 0x20000) {
            output.push((charCode >> 18) | 240);
            output.push(((charCode >> 12) & 63) | 128);
            output.push(((charCode >> 6) & 63) | 128);
            output.push((charCode & 63) | 128);
        }
        else {
            ts.Debug.assert(false, "Unexpected code point");
        }
    }
    return output;
}
var base64Digits = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
function convertToBase64(input) {
    var result = "";
    var charCodes = getExpandedCharCodes(input);
    var i = 0;
    var length = charCodes.length;
    var byte1, byte2, byte3, byte4;
    while (i < length) {
        byte1 = charCodes[i] >> 2;
        byte2 = (charCodes[i] & 3) << 4 | charCodes[i + 1] >> 4;
        byte3 = (charCodes[i + 1] & 15) << 2 | charCodes[i + 2] >> 6;
        byte4 = charCodes[i + 2] & 63;
        if (i + 1 >= length) {
            byte3 = byte4 = 64;
        }
        else if (i + 2 >= length) {
            byte4 = 64;
        }
        result += base64Digits.charAt(byte1) + base64Digits.charAt(byte2) + base64Digits.charAt(byte3) + base64Digits.charAt(byte4);
        i += 3;
    }
    return result;
}
ts.convertToBase64 = convertToBase64;
var carriageReturnLineFeed = "\r\n";
var lineFeed = "\n";
function getNewLineCharacter(options) {
    if (options.newLine === 0) {
        return carriageReturnLineFeed;
    }
    else if (options.newLine === 1) {
        return lineFeed;
    }
    else if (ts.sys) {
        return ts.sys.newLine;
    }
    return carriageReturnLineFeed;
}
ts.getNewLineCharacter = getNewLineCharacter;
function isSimpleExpression(node) {
    return isSimpleExpressionWorker(node, 0);
}
ts.isSimpleExpression = isSimpleExpression;
function isSimpleExpressionWorker(node, depth) {
    if (depth <= 5) {
        var kind = node.kind;
        if (kind === 9
            || kind === 8
            || kind === 11
            || kind === 12
            || kind === 70
            || kind === 98
            || kind === 96
            || kind === 100
            || kind === 85
            || kind === 94) {
            return true;
        }
        else if (kind === 177) {
            return isSimpleExpressionWorker(node.expression, depth + 1);
        }
        else if (kind === 178) {
            return isSimpleExpressionWorker(node.expression, depth + 1)
                && isSimpleExpressionWorker(node.argumentExpression, depth + 1);
        }
        else if (kind === 190
            || kind === 191) {
            return isSimpleExpressionWorker(node.operand, depth + 1);
        }
        else if (kind === 192) {
            return node.operatorToken.kind !== 39
                && isSimpleExpressionWorker(node.left, depth + 1)
                && isSimpleExpressionWorker(node.right, depth + 1);
        }
        else if (kind === 193) {
            return isSimpleExpressionWorker(node.condition, depth + 1)
                && isSimpleExpressionWorker(node.whenTrue, depth + 1)
                && isSimpleExpressionWorker(node.whenFalse, depth + 1);
        }
        else if (kind === 188
            || kind === 187
            || kind === 186) {
            return isSimpleExpressionWorker(node.expression, depth + 1);
        }
        else if (kind === 175) {
            return node.elements.length === 0;
        }
        else if (kind === 176) {
            return node.properties.length === 0;
        }
        else if (kind === 179) {
            if (!isSimpleExpressionWorker(node.expression, depth + 1)) {
                return false;
            }
            for (var _i = 0, _a = node.arguments; _i < _a.length; _i++) {
                var argument = _a[_i];
                if (!isSimpleExpressionWorker(argument, depth + 1)) {
                    return false;
                }
            }
            return true;
        }
    }
    return false;
}
var syntaxKindCache = ts.createMap();
function formatSyntaxKind(kind) {
    var syntaxKindEnum = ts.SyntaxKind;
    if (syntaxKindEnum) {
        if (syntaxKindCache[kind]) {
            return syntaxKindCache[kind];
        }
        for (var name_7 in syntaxKindEnum) {
            if (syntaxKindEnum[name_7] === kind) {
                return syntaxKindCache[kind] = kind.toString() + " (" + name_7 + ")";
            }
        }
    }
    else {
        return kind.toString();
    }
}
ts.formatSyntaxKind = formatSyntaxKind;
function movePos(pos, value) {
    return ts.positionIsSynthesized(pos) ? -1 : pos + value;
}
ts.movePos = movePos;
function createRange(pos, end) {
    return { pos: pos, end: end };
}
ts.createRange = createRange;
function moveRangeEnd(range, end) {
    return createRange(range.pos, end);
}
ts.moveRangeEnd = moveRangeEnd;
function moveRangePos(range, pos) {
    return createRange(pos, range.end);
}
ts.moveRangePos = moveRangePos;
function moveRangePastDecorators(node) {
    return node.decorators && node.decorators.length > 0
        ? moveRangePos(node, node.decorators.end)
        : node;
}
ts.moveRangePastDecorators = moveRangePastDecorators;
function moveRangePastModifiers(node) {
    return node.modifiers && node.modifiers.length > 0
        ? moveRangePos(node, node.modifiers.end)
        : moveRangePastDecorators(node);
}
ts.moveRangePastModifiers = moveRangePastModifiers;
function isCollapsedRange(range) {
    return range.pos === range.end;
}
ts.isCollapsedRange = isCollapsedRange;
function collapseRangeToStart(range) {
    return isCollapsedRange(range) ? range : moveRangeEnd(range, range.pos);
}
ts.collapseRangeToStart = collapseRangeToStart;
function collapseRangeToEnd(range) {
    return isCollapsedRange(range) ? range : moveRangePos(range, range.end);
}
ts.collapseRangeToEnd = collapseRangeToEnd;
function createTokenRange(pos, token) {
    return createRange(pos, pos + ts.tokenToString(token).length);
}
ts.createTokenRange = createTokenRange;
function rangeIsOnSingleLine(range, sourceFile) {
    return rangeStartIsOnSameLineAsRangeEnd(range, range, sourceFile);
}
ts.rangeIsOnSingleLine = rangeIsOnSingleLine;
function rangeStartPositionsAreOnSameLine(range1, range2, sourceFile) {
    return positionsAreOnSameLine(getStartPositionOfRange(range1, sourceFile), getStartPositionOfRange(range2, sourceFile), sourceFile);
}
ts.rangeStartPositionsAreOnSameLine = rangeStartPositionsAreOnSameLine;
function rangeEndPositionsAreOnSameLine(range1, range2, sourceFile) {
    return positionsAreOnSameLine(range1.end, range2.end, sourceFile);
}
ts.rangeEndPositionsAreOnSameLine = rangeEndPositionsAreOnSameLine;
function rangeStartIsOnSameLineAsRangeEnd(range1, range2, sourceFile) {
    return positionsAreOnSameLine(getStartPositionOfRange(range1, sourceFile), range2.end, sourceFile);
}
ts.rangeStartIsOnSameLineAsRangeEnd = rangeStartIsOnSameLineAsRangeEnd;
function rangeEndIsOnSameLineAsRangeStart(range1, range2, sourceFile) {
    return positionsAreOnSameLine(range1.end, getStartPositionOfRange(range2, sourceFile), sourceFile);
}
ts.rangeEndIsOnSameLineAsRangeStart = rangeEndIsOnSameLineAsRangeStart;
function positionsAreOnSameLine(pos1, pos2, sourceFile) {
    return pos1 === pos2 ||
        getLineOfLocalPosition(sourceFile, pos1) === getLineOfLocalPosition(sourceFile, pos2);
}
ts.positionsAreOnSameLine = positionsAreOnSameLine;
function getStartPositionOfRange(range, sourceFile) {
    return ts.positionIsSynthesized(range.pos) ? -1 : ts.skipTrivia(sourceFile.text, range.pos);
}
ts.getStartPositionOfRange = getStartPositionOfRange;
function isDeclarationNameOfEnumOrNamespace(node) {
    var parseNode = getParseTreeNode(node);
    if (parseNode) {
        switch (parseNode.parent.kind) {
            case 229:
            case 230:
                return parseNode === parseNode.parent.name;
        }
    }
    return false;
}
ts.isDeclarationNameOfEnumOrNamespace = isDeclarationNameOfEnumOrNamespace;
function getInitializedVariables(node) {
    return ts.filter(node.declarations, isInitializedVariable);
}
ts.getInitializedVariables = getInitializedVariables;
function isInitializedVariable(node) {
    return node.initializer !== undefined;
}
function isMergedWithClass(node) {
    if (node.symbol) {
        for (var _i = 0, _a = node.symbol.declarations; _i < _a.length; _i++) {
            var declaration = _a[_i];
            if (declaration.kind === 226 && declaration !== node) {
                return true;
            }
        }
    }
    return false;
}
ts.isMergedWithClass = isMergedWithClass;
function isFirstDeclarationOfKind(node, kind) {
    return node.symbol && getDeclarationOfKind(node.symbol, kind) === node;
}
ts.isFirstDeclarationOfKind = isFirstDeclarationOfKind;
function isNodeArray(array) {
    return array.hasOwnProperty("pos")
        && array.hasOwnProperty("end");
}
ts.isNodeArray = isNodeArray;
function isNoSubstitutionTemplateLiteral(node) {
    return node.kind === 12;
}
ts.isNoSubstitutionTemplateLiteral = isNoSubstitutionTemplateLiteral;
function isLiteralKind(kind) {
    return 8 <= kind && kind <= 12;
}
ts.isLiteralKind = isLiteralKind;
function isTextualLiteralKind(kind) {
    return kind === 9 || kind === 12;
}
ts.isTextualLiteralKind = isTextualLiteralKind;
function isLiteralExpression(node) {
    return isLiteralKind(node.kind);
}
ts.isLiteralExpression = isLiteralExpression;
function isTemplateLiteralKind(kind) {
    return 12 <= kind && kind <= 15;
}
ts.isTemplateLiteralKind = isTemplateLiteralKind;
function isTemplateHead(node) {
    return node.kind === 13;
}
ts.isTemplateHead = isTemplateHead;
function isTemplateMiddleOrTemplateTail(node) {
    var kind = node.kind;
    return kind === 14
        || kind === 15;
}
ts.isTemplateMiddleOrTemplateTail = isTemplateMiddleOrTemplateTail;
function isIdentifier(node) {
    return node.kind === 70;
}
ts.isIdentifier = isIdentifier;
function isVoidExpression(node) {
    return node.kind === 188;
}
ts.isVoidExpression = isVoidExpression;
function isGeneratedIdentifier(node) {
    return isIdentifier(node) && node.autoGenerateKind > 0;
}
ts.isGeneratedIdentifier = isGeneratedIdentifier;
function isModifier(node) {
    return isModifierKind(node.kind);
}
ts.isModifier = isModifier;
function isQualifiedName(node) {
    return node.kind === 141;
}
ts.isQualifiedName = isQualifiedName;
function isComputedPropertyName(node) {
    return node.kind === 142;
}
ts.isComputedPropertyName = isComputedPropertyName;
function isEntityName(node) {
    var kind = node.kind;
    return kind === 141
        || kind === 70;
}
ts.isEntityName = isEntityName;
function isPropertyName(node) {
    var kind = node.kind;
    return kind === 70
        || kind === 9
        || kind === 8
        || kind === 142;
}
ts.isPropertyName = isPropertyName;
function isModuleName(node) {
    var kind = node.kind;
    return kind === 70
        || kind === 9;
}
ts.isModuleName = isModuleName;
function isBindingName(node) {
    var kind = node.kind;
    return kind === 70
        || kind === 172
        || kind === 173;
}
ts.isBindingName = isBindingName;
function isTypeParameter(node) {
    return node.kind === 143;
}
ts.isTypeParameter = isTypeParameter;
function isParameter(node) {
    return node.kind === 144;
}
ts.isParameter = isParameter;
function isDecorator(node) {
    return node.kind === 145;
}
ts.isDecorator = isDecorator;
function isMethodDeclaration(node) {
    return node.kind === 149;
}
ts.isMethodDeclaration = isMethodDeclaration;
function isClassElement(node) {
    var kind = node.kind;
    return kind === 150
        || kind === 147
        || kind === 149
        || kind === 151
        || kind === 152
        || kind === 155
        || kind === 203;
}
ts.isClassElement = isClassElement;
function isObjectLiteralElementLike(node) {
    var kind = node.kind;
    return kind === 257
        || kind === 258
        || kind === 259
        || kind === 149
        || kind === 151
        || kind === 152
        || kind === 244;
}
ts.isObjectLiteralElementLike = isObjectLiteralElementLike;
function isTypeNodeKind(kind) {
    return (kind >= 156 && kind <= 171)
        || kind === 118
        || kind === 132
        || kind === 121
        || kind === 134
        || kind === 135
        || kind === 104
        || kind === 129
        || kind === 199;
}
function isTypeNode(node) {
    return isTypeNodeKind(node.kind);
}
ts.isTypeNode = isTypeNode;
function isArrayBindingPattern(node) {
    return node.kind === 173;
}
ts.isArrayBindingPattern = isArrayBindingPattern;
function isObjectBindingPattern(node) {
    return node.kind === 172;
}
ts.isObjectBindingPattern = isObjectBindingPattern;
function isBindingPattern(node) {
    if (node) {
        var kind = node.kind;
        return kind === 173
            || kind === 172;
    }
    return false;
}
ts.isBindingPattern = isBindingPattern;
function isAssignmentPattern(node) {
    var kind = node.kind;
    return kind === 175
        || kind === 176;
}
ts.isAssignmentPattern = isAssignmentPattern;
function isBindingElement(node) {
    return node.kind === 174;
}
ts.isBindingElement = isBindingElement;
function isArrayBindingElement(node) {
    var kind = node.kind;
    return kind === 174
        || kind === 198;
}
ts.isArrayBindingElement = isArrayBindingElement;
function isDeclarationBindingElement(bindingElement) {
    switch (bindingElement.kind) {
        case 223:
        case 144:
        case 174:
            return true;
    }
    return false;
}
ts.isDeclarationBindingElement = isDeclarationBindingElement;
function isBindingOrAssignmentPattern(node) {
    return isObjectBindingOrAssignmentPattern(node)
        || isArrayBindingOrAssignmentPattern(node);
}
ts.isBindingOrAssignmentPattern = isBindingOrAssignmentPattern;
function isObjectBindingOrAssignmentPattern(node) {
    switch (node.kind) {
        case 172:
        case 176:
            return true;
    }
    return false;
}
ts.isObjectBindingOrAssignmentPattern = isObjectBindingOrAssignmentPattern;
function isArrayBindingOrAssignmentPattern(node) {
    switch (node.kind) {
        case 173:
        case 175:
            return true;
    }
    return false;
}
ts.isArrayBindingOrAssignmentPattern = isArrayBindingOrAssignmentPattern;
function isArrayLiteralExpression(node) {
    return node.kind === 175;
}
ts.isArrayLiteralExpression = isArrayLiteralExpression;
function isObjectLiteralExpression(node) {
    return node.kind === 176;
}
ts.isObjectLiteralExpression = isObjectLiteralExpression;
function isPropertyAccessExpression(node) {
    return node.kind === 177;
}
ts.isPropertyAccessExpression = isPropertyAccessExpression;
function isElementAccessExpression(node) {
    return node.kind === 178;
}
ts.isElementAccessExpression = isElementAccessExpression;
function isBinaryExpression(node) {
    return node.kind === 192;
}
ts.isBinaryExpression = isBinaryExpression;
function isConditionalExpression(node) {
    return node.kind === 193;
}
ts.isConditionalExpression = isConditionalExpression;
function isCallExpression(node) {
    return node.kind === 179;
}
ts.isCallExpression = isCallExpression;
function isTemplateLiteral(node) {
    var kind = node.kind;
    return kind === 194
        || kind === 12;
}
ts.isTemplateLiteral = isTemplateLiteral;
function isSpreadExpression(node) {
    return node.kind === 196;
}
ts.isSpreadExpression = isSpreadExpression;
function isExpressionWithTypeArguments(node) {
    return node.kind === 199;
}
ts.isExpressionWithTypeArguments = isExpressionWithTypeArguments;
function isLeftHandSideExpressionKind(kind) {
    return kind === 177
        || kind === 178
        || kind === 180
        || kind === 179
        || kind === 246
        || kind === 247
        || kind === 181
        || kind === 175
        || kind === 183
        || kind === 176
        || kind === 197
        || kind === 184
        || kind === 70
        || kind === 11
        || kind === 8
        || kind === 9
        || kind === 12
        || kind === 194
        || kind === 85
        || kind === 94
        || kind === 98
        || kind === 100
        || kind === 96
        || kind === 201;
}
function isLeftHandSideExpression(node) {
    return isLeftHandSideExpressionKind(ts.skipPartiallyEmittedExpressions(node).kind);
}
ts.isLeftHandSideExpression = isLeftHandSideExpression;
function isUnaryExpressionKind(kind) {
    return kind === 190
        || kind === 191
        || kind === 186
        || kind === 187
        || kind === 188
        || kind === 189
        || kind === 182
        || isLeftHandSideExpressionKind(kind);
}
function isUnaryExpression(node) {
    return isUnaryExpressionKind(ts.skipPartiallyEmittedExpressions(node).kind);
}
ts.isUnaryExpression = isUnaryExpression;
function isExpressionKind(kind) {
    return kind === 193
        || kind === 195
        || kind === 185
        || kind === 192
        || kind === 196
        || kind === 200
        || kind === 198
        || isUnaryExpressionKind(kind);
}
function isExpression(node) {
    return isExpressionKind(ts.skipPartiallyEmittedExpressions(node).kind);
}
ts.isExpression = isExpression;
function isAssertionExpression(node) {
    var kind = node.kind;
    return kind === 182
        || kind === 200;
}
ts.isAssertionExpression = isAssertionExpression;
function isPartiallyEmittedExpression(node) {
    return node.kind === 294;
}
ts.isPartiallyEmittedExpression = isPartiallyEmittedExpression;
function isNotEmittedStatement(node) {
    return node.kind === 293;
}
ts.isNotEmittedStatement = isNotEmittedStatement;
function isNotEmittedOrPartiallyEmittedNode(node) {
    return isNotEmittedStatement(node)
        || isPartiallyEmittedExpression(node);
}
ts.isNotEmittedOrPartiallyEmittedNode = isNotEmittedOrPartiallyEmittedNode;
function isOmittedExpression(node) {
    return node.kind === 198;
}
ts.isOmittedExpression = isOmittedExpression;
function isTemplateSpan(node) {
    return node.kind === 202;
}
ts.isTemplateSpan = isTemplateSpan;
function isBlock(node) {
    return node.kind === 204;
}
ts.isBlock = isBlock;
function isConciseBody(node) {
    return isBlock(node)
        || isExpression(node);
}
ts.isConciseBody = isConciseBody;
function isFunctionBody(node) {
    return isBlock(node);
}
ts.isFunctionBody = isFunctionBody;
function isForInitializer(node) {
    return isVariableDeclarationList(node)
        || isExpression(node);
}
ts.isForInitializer = isForInitializer;
function isVariableDeclaration(node) {
    return node.kind === 223;
}
ts.isVariableDeclaration = isVariableDeclaration;
function isVariableDeclarationList(node) {
    return node.kind === 224;
}
ts.isVariableDeclarationList = isVariableDeclarationList;
function isCaseBlock(node) {
    return node.kind === 232;
}
ts.isCaseBlock = isCaseBlock;
function isModuleBody(node) {
    var kind = node.kind;
    return kind === 231
        || kind === 230;
}
ts.isModuleBody = isModuleBody;
function isImportEqualsDeclaration(node) {
    return node.kind === 234;
}
ts.isImportEqualsDeclaration = isImportEqualsDeclaration;
function isImportClause(node) {
    return node.kind === 236;
}
ts.isImportClause = isImportClause;
function isNamedImportBindings(node) {
    var kind = node.kind;
    return kind === 238
        || kind === 237;
}
ts.isNamedImportBindings = isNamedImportBindings;
function isImportSpecifier(node) {
    return node.kind === 239;
}
ts.isImportSpecifier = isImportSpecifier;
function isNamedExports(node) {
    return node.kind === 242;
}
ts.isNamedExports = isNamedExports;
function isExportSpecifier(node) {
    return node.kind === 243;
}
ts.isExportSpecifier = isExportSpecifier;
function isModuleOrEnumDeclaration(node) {
    return node.kind === 230 || node.kind === 229;
}
ts.isModuleOrEnumDeclaration = isModuleOrEnumDeclaration;
function isDeclarationKind(kind) {
    return kind === 185
        || kind === 174
        || kind === 226
        || kind === 197
        || kind === 150
        || kind === 229
        || kind === 260
        || kind === 243
        || kind === 225
        || kind === 184
        || kind === 151
        || kind === 236
        || kind === 234
        || kind === 239
        || kind === 227
        || kind === 149
        || kind === 148
        || kind === 230
        || kind === 233
        || kind === 237
        || kind === 144
        || kind === 257
        || kind === 147
        || kind === 146
        || kind === 152
        || kind === 258
        || kind === 228
        || kind === 143
        || kind === 223
        || kind === 285;
}
function isDeclarationStatementKind(kind) {
    return kind === 225
        || kind === 244
        || kind === 226
        || kind === 227
        || kind === 228
        || kind === 229
        || kind === 230
        || kind === 235
        || kind === 234
        || kind === 241
        || kind === 240
        || kind === 233;
}
function isStatementKindButNotDeclarationKind(kind) {
    return kind === 215
        || kind === 214
        || kind === 222
        || kind === 209
        || kind === 207
        || kind === 206
        || kind === 212
        || kind === 213
        || kind === 211
        || kind === 208
        || kind === 219
        || kind === 216
        || kind === 218
        || kind === 220
        || kind === 221
        || kind === 205
        || kind === 210
        || kind === 217
        || kind === 293
        || kind === 296
        || kind === 295;
}
function isDeclaration(node) {
    return isDeclarationKind(node.kind);
}
ts.isDeclaration = isDeclaration;
function isDeclarationStatement(node) {
    return isDeclarationStatementKind(node.kind);
}
ts.isDeclarationStatement = isDeclarationStatement;
function isStatementButNotDeclaration(node) {
    return isStatementKindButNotDeclarationKind(node.kind);
}
ts.isStatementButNotDeclaration = isStatementButNotDeclaration;
function isStatement(node) {
    var kind = node.kind;
    return isStatementKindButNotDeclarationKind(kind)
        || isDeclarationStatementKind(kind)
        || kind === 204;
}
ts.isStatement = isStatement;
function isModuleReference(node) {
    var kind = node.kind;
    return kind === 245
        || kind === 141
        || kind === 70;
}
ts.isModuleReference = isModuleReference;
function isJsxOpeningElement(node) {
    return node.kind === 248;
}
ts.isJsxOpeningElement = isJsxOpeningElement;
function isJsxClosingElement(node) {
    return node.kind === 249;
}
ts.isJsxClosingElement = isJsxClosingElement;
function isJsxTagNameExpression(node) {
    var kind = node.kind;
    return kind === 98
        || kind === 70
        || kind === 177;
}
ts.isJsxTagNameExpression = isJsxTagNameExpression;
function isJsxChild(node) {
    var kind = node.kind;
    return kind === 246
        || kind === 252
        || kind === 247
        || kind === 10;
}
ts.isJsxChild = isJsxChild;
function isJsxAttributeLike(node) {
    var kind = node.kind;
    return kind === 250
        || kind === 251;
}
ts.isJsxAttributeLike = isJsxAttributeLike;
function isJsxSpreadAttribute(node) {
    return node.kind === 251;
}
ts.isJsxSpreadAttribute = isJsxSpreadAttribute;
function isJsxAttribute(node) {
    return node.kind === 250;
}
ts.isJsxAttribute = isJsxAttribute;
function isStringLiteralOrJsxExpression(node) {
    var kind = node.kind;
    return kind === 9
        || kind === 252;
}
ts.isStringLiteralOrJsxExpression = isStringLiteralOrJsxExpression;
function isCaseOrDefaultClause(node) {
    var kind = node.kind;
    return kind === 253
        || kind === 254;
}
ts.isCaseOrDefaultClause = isCaseOrDefaultClause;
function isHeritageClause(node) {
    return node.kind === 255;
}
ts.isHeritageClause = isHeritageClause;
function isCatchClause(node) {
    return node.kind === 256;
}
ts.isCatchClause = isCatchClause;
function isPropertyAssignment(node) {
    return node.kind === 257;
}
ts.isPropertyAssignment = isPropertyAssignment;
function isShorthandPropertyAssignment(node) {
    return node.kind === 258;
}
ts.isShorthandPropertyAssignment = isShorthandPropertyAssignment;
function isEnumMember(node) {
    return node.kind === 260;
}
ts.isEnumMember = isEnumMember;
function isSourceFile(node) {
    return node.kind === 261;
}
ts.isSourceFile = isSourceFile;
function isWatchSet(options) {
    return options.watch && options.hasOwnProperty("watch");
}
ts.isWatchSet = isWatchSet;

})(ts || (ts = {})); (function (ts) {

function getDefaultLibFileName(options) {
    switch (options.target) {
        case 5:
        case 4:
            return "lib.es2017.d.ts";
        case 3:
            return "lib.es2016.d.ts";
        case 2:
            return "lib.es6.d.ts";
        default:
            return "lib.d.ts";
    }
}
ts.getDefaultLibFileName = getDefaultLibFileName;
function textSpanEnd(span) {
    return span.start + span.length;
}
ts.textSpanEnd = textSpanEnd;
function textSpanIsEmpty(span) {
    return span.length === 0;
}
ts.textSpanIsEmpty = textSpanIsEmpty;
function textSpanContainsPosition(span, position) {
    return position >= span.start && position < textSpanEnd(span);
}
ts.textSpanContainsPosition = textSpanContainsPosition;
function textSpanContainsTextSpan(span, other) {
    return other.start >= span.start && textSpanEnd(other) <= textSpanEnd(span);
}
ts.textSpanContainsTextSpan = textSpanContainsTextSpan;
function textSpanOverlapsWith(span, other) {
    var overlapStart = Math.max(span.start, other.start);
    var overlapEnd = Math.min(textSpanEnd(span), textSpanEnd(other));
    return overlapStart < overlapEnd;
}
ts.textSpanOverlapsWith = textSpanOverlapsWith;
function textSpanOverlap(span1, span2) {
    var overlapStart = Math.max(span1.start, span2.start);
    var overlapEnd = Math.min(textSpanEnd(span1), textSpanEnd(span2));
    if (overlapStart < overlapEnd) {
        return createTextSpanFromBounds(overlapStart, overlapEnd);
    }
    return undefined;
}
ts.textSpanOverlap = textSpanOverlap;
function textSpanIntersectsWithTextSpan(span, other) {
    return other.start <= textSpanEnd(span) && textSpanEnd(other) >= span.start;
}
ts.textSpanIntersectsWithTextSpan = textSpanIntersectsWithTextSpan;
function textSpanIntersectsWith(span, start, length) {
    var end = start + length;
    return start <= textSpanEnd(span) && end >= span.start;
}
ts.textSpanIntersectsWith = textSpanIntersectsWith;
function decodedTextSpanIntersectsWith(start1, length1, start2, length2) {
    var end1 = start1 + length1;
    var end2 = start2 + length2;
    return start2 <= end1 && end2 >= start1;
}
ts.decodedTextSpanIntersectsWith = decodedTextSpanIntersectsWith;
function textSpanIntersectsWithPosition(span, position) {
    return position <= textSpanEnd(span) && position >= span.start;
}
ts.textSpanIntersectsWithPosition = textSpanIntersectsWithPosition;
function textSpanIntersection(span1, span2) {
    var intersectStart = Math.max(span1.start, span2.start);
    var intersectEnd = Math.min(textSpanEnd(span1), textSpanEnd(span2));
    if (intersectStart <= intersectEnd) {
        return createTextSpanFromBounds(intersectStart, intersectEnd);
    }
    return undefined;
}
ts.textSpanIntersection = textSpanIntersection;
function createTextSpan(start, length) {
    if (start < 0) {
        throw new Error("start < 0");
    }
    if (length < 0) {
        throw new Error("length < 0");
    }
    return { start: start, length: length };
}
ts.createTextSpan = createTextSpan;
function createTextSpanFromBounds(start, end) {
    return createTextSpan(start, end - start);
}
ts.createTextSpanFromBounds = createTextSpanFromBounds;
function textChangeRangeNewSpan(range) {
    return createTextSpan(range.span.start, range.newLength);
}
ts.textChangeRangeNewSpan = textChangeRangeNewSpan;
function textChangeRangeIsUnchanged(range) {
    return textSpanIsEmpty(range.span) && range.newLength === 0;
}
ts.textChangeRangeIsUnchanged = textChangeRangeIsUnchanged;
function createTextChangeRange(span, newLength) {
    if (newLength < 0) {
        throw new Error("newLength < 0");
    }
    return { span: span, newLength: newLength };
}
ts.createTextChangeRange = createTextChangeRange;
ts.unchangedTextChangeRange = createTextChangeRange(createTextSpan(0, 0), 0);
function collapseTextChangeRangesAcrossMultipleVersions(changes) {
    if (changes.length === 0) {
        return ts.unchangedTextChangeRange;
    }
    if (changes.length === 1) {
        return changes[0];
    }
    var change0 = changes[0];
    var oldStartN = change0.span.start;
    var oldEndN = textSpanEnd(change0.span);
    var newEndN = oldStartN + change0.newLength;
    for (var i = 1; i < changes.length; i++) {
        var nextChange = changes[i];
        var oldStart1 = oldStartN;
        var oldEnd1 = oldEndN;
        var newEnd1 = newEndN;
        var oldStart2 = nextChange.span.start;
        var oldEnd2 = textSpanEnd(nextChange.span);
        var newEnd2 = oldStart2 + nextChange.newLength;
        oldStartN = Math.min(oldStart1, oldStart2);
        oldEndN = Math.max(oldEnd1, oldEnd1 + (oldEnd2 - newEnd1));
        newEndN = Math.max(newEnd2, newEnd2 + (newEnd1 - oldEnd2));
    }
    return createTextChangeRange(createTextSpanFromBounds(oldStartN, oldEndN), newEndN - oldStartN);
}
ts.collapseTextChangeRangesAcrossMultipleVersions = collapseTextChangeRangesAcrossMultipleVersions;
function getTypeParameterOwner(d) {
    if (d && d.kind === 143) {
        for (var current = d; current; current = current.parent) {
            if (ts.isFunctionLike(current) || ts.isClassLike(current) || current.kind === 227) {
                return current;
            }
        }
    }
}
ts.getTypeParameterOwner = getTypeParameterOwner;
function isParameterPropertyDeclaration(node) {
    return ts.hasModifier(node, 92) && node.parent.kind === 150 && ts.isClassLike(node.parent.parent);
}
ts.isParameterPropertyDeclaration = isParameterPropertyDeclaration;
function walkUpBindingElementsAndPatterns(node) {
    while (node && (node.kind === 174 || ts.isBindingPattern(node))) {
        node = node.parent;
    }
    return node;
}
function getCombinedModifierFlags(node) {
    node = walkUpBindingElementsAndPatterns(node);
    var flags = ts.getModifierFlags(node);
    if (node.kind === 223) {
        node = node.parent;
    }
    if (node && node.kind === 224) {
        flags |= ts.getModifierFlags(node);
        node = node.parent;
    }
    if (node && node.kind === 205) {
        flags |= ts.getModifierFlags(node);
    }
    return flags;
}
ts.getCombinedModifierFlags = getCombinedModifierFlags;
function getCombinedNodeFlags(node) {
    node = walkUpBindingElementsAndPatterns(node);
    var flags = node.flags;
    if (node.kind === 223) {
        node = node.parent;
    }
    if (node && node.kind === 224) {
        flags |= node.flags;
        node = node.parent;
    }
    if (node && node.kind === 205) {
        flags |= node.flags;
    }
    return flags;
}
ts.getCombinedNodeFlags = getCombinedNodeFlags;
function validateLocaleAndSetLanguage(locale, sys, errors) {
    var matchResult = /^([a-z]+)([_\-]([a-z]+))?$/.exec(locale.toLowerCase());
    if (!matchResult) {
        if (errors) {
            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1, "en", "ja-jp"));
        }
        return;
    }
    var language = matchResult[1];
    var territory = matchResult[3];
    if (!trySetLanguageAndTerritory(language, territory, errors)) {
        trySetLanguageAndTerritory(language, undefined, errors);
    }
    function trySetLanguageAndTerritory(language, territory, errors) {
        var compilerFilePath = ts.normalizePath(sys.getExecutingFilePath());
        var containingDirectoryPath = ts.getDirectoryPath(compilerFilePath);
        var filePath = ts.combinePaths(containingDirectoryPath, language);
        if (territory) {
            filePath = filePath + "-" + territory;
        }
        filePath = sys.resolvePath(ts.combinePaths(filePath, "diagnosticMessages.generated.json"));
        if (!sys.fileExists(filePath)) {
            return false;
        }
        var fileContents = "";
        try {
            fileContents = sys.readFile(filePath);
        }
        catch (e) {
            if (errors) {
                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unable_to_open_file_0, filePath));
            }
            return false;
        }
        try {
            ts.localizedDiagnosticMessages = JSON.parse(fileContents);
        }
        catch (e) {
            if (errors) {
                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Corrupted_locale_file_0, filePath));
            }
            return false;
        }
        return true;
    }
}
ts.validateLocaleAndSetLanguage = validateLocaleAndSetLanguage;

})(ts || (ts = {})); var ts; (function (ts) {

var NodeConstructor;
var SourceFileConstructor;
function createNode(kind, location, flags) {
    var ConstructorForKind = kind === 261
        ? (SourceFileConstructor || (SourceFileConstructor = ts.objectAllocator.getSourceFileConstructor()))
        : (NodeConstructor || (NodeConstructor = ts.objectAllocator.getNodeConstructor()));
    var node = location
        ? new ConstructorForKind(kind, location.pos, location.end)
        : new ConstructorForKind(kind, -1, -1);
    node.flags = flags | 8;
    return node;
}
function updateNode(updated, original) {
    if (updated !== original) {
        setOriginalNode(updated, original);
        if (original.startsOnNewLine) {
            updated.startsOnNewLine = true;
        }
        ts.aggregateTransformFlags(updated);
    }
    return updated;
}
ts.updateNode = updateNode;
function createNodeArray(elements, location, hasTrailingComma) {
    if (elements) {
        if (ts.isNodeArray(elements)) {
            return elements;
        }
    }
    else {
        elements = [];
    }
    var array = elements;
    if (location) {
        array.pos = location.pos;
        array.end = location.end;
    }
    else {
        array.pos = -1;
        array.end = -1;
    }
    if (hasTrailingComma) {
        array.hasTrailingComma = true;
    }
    return array;
}
ts.createNodeArray = createNodeArray;
function createSynthesizedNode(kind, startsOnNewLine) {
    var node = createNode(kind, undefined);
    node.startsOnNewLine = startsOnNewLine;
    return node;
}
ts.createSynthesizedNode = createSynthesizedNode;
function createSynthesizedNodeArray(elements) {
    return createNodeArray(elements, undefined);
}
ts.createSynthesizedNodeArray = createSynthesizedNodeArray;
function getSynthesizedClone(node) {
    var clone = createNode(node.kind, undefined, node.flags);
    setOriginalNode(clone, node);
    for (var key in node) {
        if (clone.hasOwnProperty(key) || !node.hasOwnProperty(key)) {
            continue;
        }
        clone[key] = node[key];
    }
    return clone;
}
ts.getSynthesizedClone = getSynthesizedClone;
function getMutableClone(node) {
    var clone = getSynthesizedClone(node);
    clone.pos = node.pos;
    clone.end = node.end;
    clone.parent = node.parent;
    return clone;
}
ts.getMutableClone = getMutableClone;
function createLiteral(value, location) {
    if (typeof value === "number") {
        var node = createNode(8, location, undefined);
        node.text = value.toString();
        return node;
    }
    else if (typeof value === "boolean") {
        return createNode(value ? 100 : 85, location, undefined);
    }
    else if (typeof value === "string") {
        var node = createNode(9, location, undefined);
        node.text = value;
        return node;
    }
    else if (value) {
        var node = createNode(9, location, undefined);
        node.textSourceNode = value;
        node.text = value.text;
        return node;
    }
}
ts.createLiteral = createLiteral;
var nextAutoGenerateId = 0;
function createIdentifier(text, location) {
    var node = createNode(70, location);
    node.text = ts.escapeIdentifier(text);
    node.originalKeywordKind = ts.stringToToken(text);
    node.autoGenerateKind = 0;
    node.autoGenerateId = 0;
    return node;
}
ts.createIdentifier = createIdentifier;
function createTempVariable(recordTempVariable, location) {
    var name = createNode(70, location);
    name.text = "";
    name.originalKeywordKind = 0;
    name.autoGenerateKind = 1;
    name.autoGenerateId = nextAutoGenerateId;
    nextAutoGenerateId++;
    if (recordTempVariable) {
        recordTempVariable(name);
    }
    return name;
}
ts.createTempVariable = createTempVariable;
function createLoopVariable(location) {
    var name = createNode(70, location);
    name.text = "";
    name.originalKeywordKind = 0;
    name.autoGenerateKind = 2;
    name.autoGenerateId = nextAutoGenerateId;
    nextAutoGenerateId++;
    return name;
}
ts.createLoopVariable = createLoopVariable;
function createUniqueName(text, location) {
    var name = createNode(70, location);
    name.text = text;
    name.originalKeywordKind = 0;
    name.autoGenerateKind = 3;
    name.autoGenerateId = nextAutoGenerateId;
    nextAutoGenerateId++;
    return name;
}
ts.createUniqueName = createUniqueName;
function getGeneratedNameForNode(node, location) {
    var name = createNode(70, location);
    name.original = node;
    name.text = "";
    name.originalKeywordKind = 0;
    name.autoGenerateKind = 4;
    name.autoGenerateId = nextAutoGenerateId;
    nextAutoGenerateId++;
    return name;
}
ts.getGeneratedNameForNode = getGeneratedNameForNode;
function createToken(token) {
    return createNode(token);
}
ts.createToken = createToken;
function createSuper() {
    var node = createNode(96);
    return node;
}
ts.createSuper = createSuper;
function createThis(location) {
    var node = createNode(98, location);
    return node;
}
ts.createThis = createThis;
function createNull() {
    var node = createNode(94);
    return node;
}
ts.createNull = createNull;
function createComputedPropertyName(expression, location) {
    var node = createNode(142, location);
    node.expression = expression;
    return node;
}
ts.createComputedPropertyName = createComputedPropertyName;
function updateComputedPropertyName(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createComputedPropertyName(expression, node), node);
    }
    return node;
}
ts.updateComputedPropertyName = updateComputedPropertyName;
function createParameter(decorators, modifiers, dotDotDotToken, name, questionToken, type, initializer, location, flags) {
    var node = createNode(144, location, flags);
    node.decorators = decorators ? createNodeArray(decorators) : undefined;
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.dotDotDotToken = dotDotDotToken;
    node.name = typeof name === "string" ? createIdentifier(name) : name;
    node.questionToken = questionToken;
    node.type = type;
    node.initializer = initializer ? parenthesizeExpressionForList(initializer) : undefined;
    return node;
}
ts.createParameter = createParameter;
function updateParameter(node, decorators, modifiers, dotDotDotToken, name, type, initializer) {
    if (node.decorators !== decorators || node.modifiers !== modifiers || node.dotDotDotToken !== dotDotDotToken || node.name !== name || node.type !== type || node.initializer !== initializer) {
        return updateNode(createParameter(decorators, modifiers, dotDotDotToken, name, node.questionToken, type, initializer, node, node.flags), node);
    }
    return node;
}
ts.updateParameter = updateParameter;
function createProperty(decorators, modifiers, name, questionToken, type, initializer, location) {
    var node = createNode(147, location);
    node.decorators = decorators ? createNodeArray(decorators) : undefined;
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.name = typeof name === "string" ? createIdentifier(name) : name;
    node.questionToken = questionToken;
    node.type = type;
    node.initializer = initializer;
    return node;
}
ts.createProperty = createProperty;
function updateProperty(node, decorators, modifiers, name, type, initializer) {
    if (node.decorators !== decorators || node.modifiers !== modifiers || node.name !== name || node.type !== type || node.initializer !== initializer) {
        return updateNode(createProperty(decorators, modifiers, name, node.questionToken, type, initializer, node), node);
    }
    return node;
}
ts.updateProperty = updateProperty;
function createMethod(decorators, modifiers, asteriskToken, name, typeParameters, parameters, type, body, location, flags) {
    var node = createNode(149, location, flags);
    node.decorators = decorators ? createNodeArray(decorators) : undefined;
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.asteriskToken = asteriskToken;
    node.name = typeof name === "string" ? createIdentifier(name) : name;
    node.typeParameters = typeParameters ? createNodeArray(typeParameters) : undefined;
    node.parameters = createNodeArray(parameters);
    node.type = type;
    node.body = body;
    return node;
}
ts.createMethod = createMethod;
function updateMethod(node, decorators, modifiers, name, typeParameters, parameters, type, body) {
    if (node.decorators !== decorators || node.modifiers !== modifiers || node.name !== name || node.typeParameters !== typeParameters || node.parameters !== parameters || node.type !== type || node.body !== body) {
        return updateNode(createMethod(decorators, modifiers, node.asteriskToken, name, typeParameters, parameters, type, body, node, node.flags), node);
    }
    return node;
}
ts.updateMethod = updateMethod;
function createConstructor(decorators, modifiers, parameters, body, location, flags) {
    var node = createNode(150, location, flags);
    node.decorators = decorators ? createNodeArray(decorators) : undefined;
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.typeParameters = undefined;
    node.parameters = createNodeArray(parameters);
    node.type = undefined;
    node.body = body;
    return node;
}
ts.createConstructor = createConstructor;
function updateConstructor(node, decorators, modifiers, parameters, body) {
    if (node.decorators !== decorators || node.modifiers !== modifiers || node.parameters !== parameters || node.body !== body) {
        return updateNode(createConstructor(decorators, modifiers, parameters, body, node, node.flags), node);
    }
    return node;
}
ts.updateConstructor = updateConstructor;
function createGetAccessor(decorators, modifiers, name, parameters, type, body, location, flags) {
    var node = createNode(151, location, flags);
    node.decorators = decorators ? createNodeArray(decorators) : undefined;
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.name = typeof name === "string" ? createIdentifier(name) : name;
    node.typeParameters = undefined;
    node.parameters = createNodeArray(parameters);
    node.type = type;
    node.body = body;
    return node;
}
ts.createGetAccessor = createGetAccessor;
function updateGetAccessor(node, decorators, modifiers, name, parameters, type, body) {
    if (node.decorators !== decorators || node.modifiers !== modifiers || node.name !== name || node.parameters !== parameters || node.type !== type || node.body !== body) {
        return updateNode(createGetAccessor(decorators, modifiers, name, parameters, type, body, node, node.flags), node);
    }
    return node;
}
ts.updateGetAccessor = updateGetAccessor;
function createSetAccessor(decorators, modifiers, name, parameters, body, location, flags) {
    var node = createNode(152, location, flags);
    node.decorators = decorators ? createNodeArray(decorators) : undefined;
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.name = typeof name === "string" ? createIdentifier(name) : name;
    node.typeParameters = undefined;
    node.parameters = createNodeArray(parameters);
    node.body = body;
    return node;
}
ts.createSetAccessor = createSetAccessor;
function updateSetAccessor(node, decorators, modifiers, name, parameters, body) {
    if (node.decorators !== decorators || node.modifiers !== modifiers || node.name !== name || node.parameters !== parameters || node.body !== body) {
        return updateNode(createSetAccessor(decorators, modifiers, name, parameters, body, node, node.flags), node);
    }
    return node;
}
ts.updateSetAccessor = updateSetAccessor;
function createObjectBindingPattern(elements, location) {
    var node = createNode(172, location);
    node.elements = createNodeArray(elements);
    return node;
}
ts.createObjectBindingPattern = createObjectBindingPattern;
function updateObjectBindingPattern(node, elements) {
    if (node.elements !== elements) {
        return updateNode(createObjectBindingPattern(elements, node), node);
    }
    return node;
}
ts.updateObjectBindingPattern = updateObjectBindingPattern;
function createArrayBindingPattern(elements, location) {
    var node = createNode(173, location);
    node.elements = createNodeArray(elements);
    return node;
}
ts.createArrayBindingPattern = createArrayBindingPattern;
function updateArrayBindingPattern(node, elements) {
    if (node.elements !== elements) {
        return updateNode(createArrayBindingPattern(elements, node), node);
    }
    return node;
}
ts.updateArrayBindingPattern = updateArrayBindingPattern;
function createBindingElement(propertyName, dotDotDotToken, name, initializer, location) {
    var node = createNode(174, location);
    node.propertyName = typeof propertyName === "string" ? createIdentifier(propertyName) : propertyName;
    node.dotDotDotToken = dotDotDotToken;
    node.name = typeof name === "string" ? createIdentifier(name) : name;
    node.initializer = initializer;
    return node;
}
ts.createBindingElement = createBindingElement;
function updateBindingElement(node, dotDotDotToken, propertyName, name, initializer) {
    if (node.propertyName !== propertyName || node.dotDotDotToken !== dotDotDotToken || node.name !== name || node.initializer !== initializer) {
        return updateNode(createBindingElement(propertyName, dotDotDotToken, name, initializer, node), node);
    }
    return node;
}
ts.updateBindingElement = updateBindingElement;
function createArrayLiteral(elements, location, multiLine) {
    var node = createNode(175, location);
    node.elements = parenthesizeListElements(createNodeArray(elements));
    if (multiLine) {
        node.multiLine = true;
    }
    return node;
}
ts.createArrayLiteral = createArrayLiteral;
function updateArrayLiteral(node, elements) {
    if (node.elements !== elements) {
        return updateNode(createArrayLiteral(elements, node, node.multiLine), node);
    }
    return node;
}
ts.updateArrayLiteral = updateArrayLiteral;
function createObjectLiteral(properties, location, multiLine) {
    var node = createNode(176, location);
    node.properties = createNodeArray(properties);
    if (multiLine) {
        node.multiLine = true;
    }
    return node;
}
ts.createObjectLiteral = createObjectLiteral;
function updateObjectLiteral(node, properties) {
    if (node.properties !== properties) {
        return updateNode(createObjectLiteral(properties, node, node.multiLine), node);
    }
    return node;
}
ts.updateObjectLiteral = updateObjectLiteral;
function createPropertyAccess(expression, name, location, flags) {
    var node = createNode(177, location, flags);
    node.expression = parenthesizeForAccess(expression);
    (node.emitNode || (node.emitNode = {})).flags |= 65536;
    node.name = typeof name === "string" ? createIdentifier(name) : name;
    return node;
}
ts.createPropertyAccess = createPropertyAccess;
function updatePropertyAccess(node, expression, name) {
    if (node.expression !== expression || node.name !== name) {
        var propertyAccess = createPropertyAccess(expression, name, node, node.flags);
        (propertyAccess.emitNode || (propertyAccess.emitNode = {})).flags = getEmitFlags(node);
        return updateNode(propertyAccess, node);
    }
    return node;
}
ts.updatePropertyAccess = updatePropertyAccess;
function createElementAccess(expression, index, location) {
    var node = createNode(178, location);
    node.expression = parenthesizeForAccess(expression);
    node.argumentExpression = typeof index === "number" ? createLiteral(index) : index;
    return node;
}
ts.createElementAccess = createElementAccess;
function updateElementAccess(node, expression, argumentExpression) {
    if (node.expression !== expression || node.argumentExpression !== argumentExpression) {
        return updateNode(createElementAccess(expression, argumentExpression, node), node);
    }
    return node;
}
ts.updateElementAccess = updateElementAccess;
function createCall(expression, typeArguments, argumentsArray, location, flags) {
    var node = createNode(179, location, flags);
    node.expression = parenthesizeForAccess(expression);
    if (typeArguments) {
        node.typeArguments = createNodeArray(typeArguments);
    }
    node.arguments = parenthesizeListElements(createNodeArray(argumentsArray));
    return node;
}
ts.createCall = createCall;
function updateCall(node, expression, typeArguments, argumentsArray) {
    if (expression !== node.expression || typeArguments !== node.typeArguments || argumentsArray !== node.arguments) {
        return updateNode(createCall(expression, typeArguments, argumentsArray, node, node.flags), node);
    }
    return node;
}
ts.updateCall = updateCall;
function createNew(expression, typeArguments, argumentsArray, location, flags) {
    var node = createNode(180, location, flags);
    node.expression = parenthesizeForNew(expression);
    node.typeArguments = typeArguments ? createNodeArray(typeArguments) : undefined;
    node.arguments = argumentsArray ? parenthesizeListElements(createNodeArray(argumentsArray)) : undefined;
    return node;
}
ts.createNew = createNew;
function updateNew(node, expression, typeArguments, argumentsArray) {
    if (node.expression !== expression || node.typeArguments !== typeArguments || node.arguments !== argumentsArray) {
        return updateNode(createNew(expression, typeArguments, argumentsArray, node, node.flags), node);
    }
    return node;
}
ts.updateNew = updateNew;
function createTaggedTemplate(tag, template, location) {
    var node = createNode(181, location);
    node.tag = parenthesizeForAccess(tag);
    node.template = template;
    return node;
}
ts.createTaggedTemplate = createTaggedTemplate;
function updateTaggedTemplate(node, tag, template) {
    if (node.tag !== tag || node.template !== template) {
        return updateNode(createTaggedTemplate(tag, template, node), node);
    }
    return node;
}
ts.updateTaggedTemplate = updateTaggedTemplate;
function createParen(expression, location) {
    var node = createNode(183, location);
    node.expression = expression;
    return node;
}
ts.createParen = createParen;
function updateParen(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createParen(expression, node), node);
    }
    return node;
}
ts.updateParen = updateParen;
function createFunctionExpression(modifiers, asteriskToken, name, typeParameters, parameters, type, body, location, flags) {
    var node = createNode(184, location, flags);
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.asteriskToken = asteriskToken;
    node.name = typeof name === "string" ? createIdentifier(name) : name;
    node.typeParameters = typeParameters ? createNodeArray(typeParameters) : undefined;
    node.parameters = createNodeArray(parameters);
    node.type = type;
    node.body = body;
    return node;
}
ts.createFunctionExpression = createFunctionExpression;
function updateFunctionExpression(node, modifiers, name, typeParameters, parameters, type, body) {
    if (node.name !== name || node.modifiers !== modifiers || node.typeParameters !== typeParameters || node.parameters !== parameters || node.type !== type || node.body !== body) {
        return updateNode(createFunctionExpression(modifiers, node.asteriskToken, name, typeParameters, parameters, type, body, node, node.flags), node);
    }
    return node;
}
ts.updateFunctionExpression = updateFunctionExpression;
function createArrowFunction(modifiers, typeParameters, parameters, type, equalsGreaterThanToken, body, location, flags) {
    var node = createNode(185, location, flags);
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.typeParameters = typeParameters ? createNodeArray(typeParameters) : undefined;
    node.parameters = createNodeArray(parameters);
    node.type = type;
    node.equalsGreaterThanToken = equalsGreaterThanToken || createToken(35);
    node.body = parenthesizeConciseBody(body);
    return node;
}
ts.createArrowFunction = createArrowFunction;
function updateArrowFunction(node, modifiers, typeParameters, parameters, type, body) {
    if (node.modifiers !== modifiers || node.typeParameters !== typeParameters || node.parameters !== parameters || node.type !== type || node.body !== body) {
        return updateNode(createArrowFunction(modifiers, typeParameters, parameters, type, node.equalsGreaterThanToken, body, node, node.flags), node);
    }
    return node;
}
ts.updateArrowFunction = updateArrowFunction;
function createDelete(expression, location) {
    var node = createNode(186, location);
    node.expression = parenthesizePrefixOperand(expression);
    return node;
}
ts.createDelete = createDelete;
function updateDelete(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createDelete(expression, node), expression);
    }
    return node;
}
ts.updateDelete = updateDelete;
function createTypeOf(expression, location) {
    var node = createNode(187, location);
    node.expression = parenthesizePrefixOperand(expression);
    return node;
}
ts.createTypeOf = createTypeOf;
function updateTypeOf(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createTypeOf(expression, node), expression);
    }
    return node;
}
ts.updateTypeOf = updateTypeOf;
function createVoid(expression, location) {
    var node = createNode(188, location);
    node.expression = parenthesizePrefixOperand(expression);
    return node;
}
ts.createVoid = createVoid;
function updateVoid(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createVoid(expression, node), node);
    }
    return node;
}
ts.updateVoid = updateVoid;
function createAwait(expression, location) {
    var node = createNode(189, location);
    node.expression = parenthesizePrefixOperand(expression);
    return node;
}
ts.createAwait = createAwait;
function updateAwait(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createAwait(expression, node), node);
    }
    return node;
}
ts.updateAwait = updateAwait;
function createPrefix(operator, operand, location) {
    var node = createNode(190, location);
    node.operator = operator;
    node.operand = parenthesizePrefixOperand(operand);
    return node;
}
ts.createPrefix = createPrefix;
function updatePrefix(node, operand) {
    if (node.operand !== operand) {
        return updateNode(createPrefix(node.operator, operand, node), node);
    }
    return node;
}
ts.updatePrefix = updatePrefix;
function createPostfix(operand, operator, location) {
    var node = createNode(191, location);
    node.operand = parenthesizePostfixOperand(operand);
    node.operator = operator;
    return node;
}
ts.createPostfix = createPostfix;
function updatePostfix(node, operand) {
    if (node.operand !== operand) {
        return updateNode(createPostfix(operand, node.operator, node), node);
    }
    return node;
}
ts.updatePostfix = updatePostfix;
function createBinary(left, operator, right, location) {
    var operatorToken = typeof operator === "number" ? createToken(operator) : operator;
    var operatorKind = operatorToken.kind;
    var node = createNode(192, location);
    node.left = parenthesizeBinaryOperand(operatorKind, left, true, undefined);
    node.operatorToken = operatorToken;
    node.right = parenthesizeBinaryOperand(operatorKind, right, false, node.left);
    return node;
}
ts.createBinary = createBinary;
function updateBinary(node, left, right) {
    if (node.left !== left || node.right !== right) {
        return updateNode(createBinary(left, node.operatorToken, right, node), node);
    }
    return node;
}
ts.updateBinary = updateBinary;
function createConditional(condition, questionTokenOrWhenTrue, whenTrueOrWhenFalse, colonTokenOrLocation, whenFalse, location) {
    var node = createNode(193, whenFalse ? location : colonTokenOrLocation);
    node.condition = parenthesizeForConditionalHead(condition);
    if (whenFalse) {
        node.questionToken = questionTokenOrWhenTrue;
        node.whenTrue = parenthesizeSubexpressionOfConditionalExpression(whenTrueOrWhenFalse);
        node.colonToken = colonTokenOrLocation;
        node.whenFalse = parenthesizeSubexpressionOfConditionalExpression(whenFalse);
    }
    else {
        node.questionToken = createToken(54);
        node.whenTrue = parenthesizeSubexpressionOfConditionalExpression(questionTokenOrWhenTrue);
        node.colonToken = createToken(55);
        node.whenFalse = parenthesizeSubexpressionOfConditionalExpression(whenTrueOrWhenFalse);
    }
    return node;
}
ts.createConditional = createConditional;
function updateConditional(node, condition, whenTrue, whenFalse) {
    if (node.condition !== condition || node.whenTrue !== whenTrue || node.whenFalse !== whenFalse) {
        return updateNode(createConditional(condition, node.questionToken, whenTrue, node.colonToken, whenFalse, node), node);
    }
    return node;
}
ts.updateConditional = updateConditional;
function createTemplateExpression(head, templateSpans, location) {
    var node = createNode(194, location);
    node.head = head;
    node.templateSpans = createNodeArray(templateSpans);
    return node;
}
ts.createTemplateExpression = createTemplateExpression;
function updateTemplateExpression(node, head, templateSpans) {
    if (node.head !== head || node.templateSpans !== templateSpans) {
        return updateNode(createTemplateExpression(head, templateSpans, node), node);
    }
    return node;
}
ts.updateTemplateExpression = updateTemplateExpression;
function createYield(asteriskToken, expression, location) {
    var node = createNode(195, location);
    node.asteriskToken = asteriskToken;
    node.expression = expression;
    return node;
}
ts.createYield = createYield;
function updateYield(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createYield(node.asteriskToken, expression, node), node);
    }
    return node;
}
ts.updateYield = updateYield;
function createSpread(expression, location) {
    var node = createNode(196, location);
    node.expression = parenthesizeExpressionForList(expression);
    return node;
}
ts.createSpread = createSpread;
function updateSpread(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createSpread(expression, node), node);
    }
    return node;
}
ts.updateSpread = updateSpread;
function createClassExpression(modifiers, name, typeParameters, heritageClauses, members, location) {
    var node = createNode(197, location);
    node.decorators = undefined;
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.name = name;
    node.typeParameters = typeParameters ? createNodeArray(typeParameters) : undefined;
    node.heritageClauses = createNodeArray(heritageClauses);
    node.members = createNodeArray(members);
    return node;
}
ts.createClassExpression = createClassExpression;
function updateClassExpression(node, modifiers, name, typeParameters, heritageClauses, members) {
    if (node.modifiers !== modifiers || node.name !== name || node.typeParameters !== typeParameters || node.heritageClauses !== heritageClauses || node.members !== members) {
        return updateNode(createClassExpression(modifiers, name, typeParameters, heritageClauses, members, node), node);
    }
    return node;
}
ts.updateClassExpression = updateClassExpression;
function createOmittedExpression(location) {
    var node = createNode(198, location);
    return node;
}
ts.createOmittedExpression = createOmittedExpression;
function createExpressionWithTypeArguments(typeArguments, expression, location) {
    var node = createNode(199, location);
    node.typeArguments = typeArguments ? createNodeArray(typeArguments) : undefined;
    node.expression = parenthesizeForAccess(expression);
    return node;
}
ts.createExpressionWithTypeArguments = createExpressionWithTypeArguments;
function updateExpressionWithTypeArguments(node, typeArguments, expression) {
    if (node.typeArguments !== typeArguments || node.expression !== expression) {
        return updateNode(createExpressionWithTypeArguments(typeArguments, expression, node), node);
    }
    return node;
}
ts.updateExpressionWithTypeArguments = updateExpressionWithTypeArguments;
function createTemplateSpan(expression, literal, location) {
    var node = createNode(202, location);
    node.expression = expression;
    node.literal = literal;
    return node;
}
ts.createTemplateSpan = createTemplateSpan;
function updateTemplateSpan(node, expression, literal) {
    if (node.expression !== expression || node.literal !== literal) {
        return updateNode(createTemplateSpan(expression, literal, node), node);
    }
    return node;
}
ts.updateTemplateSpan = updateTemplateSpan;
function createBlock(statements, location, multiLine, flags) {
    var block = createNode(204, location, flags);
    block.statements = createNodeArray(statements);
    if (multiLine) {
        block.multiLine = true;
    }
    return block;
}
ts.createBlock = createBlock;
function updateBlock(node, statements) {
    if (statements !== node.statements) {
        return updateNode(createBlock(statements, node, node.multiLine, node.flags), node);
    }
    return node;
}
ts.updateBlock = updateBlock;
function createVariableStatement(modifiers, declarationList, location, flags) {
    var node = createNode(205, location, flags);
    node.decorators = undefined;
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.declarationList = ts.isArray(declarationList) ? createVariableDeclarationList(declarationList) : declarationList;
    return node;
}
ts.createVariableStatement = createVariableStatement;
function updateVariableStatement(node, modifiers, declarationList) {
    if (node.modifiers !== modifiers || node.declarationList !== declarationList) {
        return updateNode(createVariableStatement(modifiers, declarationList, node, node.flags), node);
    }
    return node;
}
ts.updateVariableStatement = updateVariableStatement;
function createVariableDeclarationList(declarations, location, flags) {
    var node = createNode(224, location, flags);
    node.declarations = createNodeArray(declarations);
    return node;
}
ts.createVariableDeclarationList = createVariableDeclarationList;
function updateVariableDeclarationList(node, declarations) {
    if (node.declarations !== declarations) {
        return updateNode(createVariableDeclarationList(declarations, node, node.flags), node);
    }
    return node;
}
ts.updateVariableDeclarationList = updateVariableDeclarationList;
function createVariableDeclaration(name, type, initializer, location, flags) {
    var node = createNode(223, location, flags);
    node.name = typeof name === "string" ? createIdentifier(name) : name;
    node.type = type;
    node.initializer = initializer !== undefined ? parenthesizeExpressionForList(initializer) : undefined;
    return node;
}
ts.createVariableDeclaration = createVariableDeclaration;
function updateVariableDeclaration(node, name, type, initializer) {
    if (node.name !== name || node.type !== type || node.initializer !== initializer) {
        return updateNode(createVariableDeclaration(name, type, initializer, node, node.flags), node);
    }
    return node;
}
ts.updateVariableDeclaration = updateVariableDeclaration;
function createEmptyStatement(location) {
    return createNode(206, location);
}
ts.createEmptyStatement = createEmptyStatement;
function createStatement(expression, location, flags) {
    var node = createNode(207, location, flags);
    node.expression = parenthesizeExpressionForExpressionStatement(expression);
    return node;
}
ts.createStatement = createStatement;
function updateStatement(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createStatement(expression, node, node.flags), node);
    }
    return node;
}
ts.updateStatement = updateStatement;
function createIf(expression, thenStatement, elseStatement, location) {
    var node = createNode(208, location);
    node.expression = expression;
    node.thenStatement = thenStatement;
    node.elseStatement = elseStatement;
    return node;
}
ts.createIf = createIf;
function updateIf(node, expression, thenStatement, elseStatement) {
    if (node.expression !== expression || node.thenStatement !== thenStatement || node.elseStatement !== elseStatement) {
        return updateNode(createIf(expression, thenStatement, elseStatement, node), node);
    }
    return node;
}
ts.updateIf = updateIf;
function createDo(statement, expression, location) {
    var node = createNode(209, location);
    node.statement = statement;
    node.expression = expression;
    return node;
}
ts.createDo = createDo;
function updateDo(node, statement, expression) {
    if (node.statement !== statement || node.expression !== expression) {
        return updateNode(createDo(statement, expression, node), node);
    }
    return node;
}
ts.updateDo = updateDo;
function createWhile(expression, statement, location) {
    var node = createNode(210, location);
    node.expression = expression;
    node.statement = statement;
    return node;
}
ts.createWhile = createWhile;
function updateWhile(node, expression, statement) {
    if (node.expression !== expression || node.statement !== statement) {
        return updateNode(createWhile(expression, statement, node), node);
    }
    return node;
}
ts.updateWhile = updateWhile;
function createFor(initializer, condition, incrementor, statement, location) {
    var node = createNode(211, location, undefined);
    node.initializer = initializer;
    node.condition = condition;
    node.incrementor = incrementor;
    node.statement = statement;
    return node;
}
ts.createFor = createFor;
function updateFor(node, initializer, condition, incrementor, statement) {
    if (node.initializer !== initializer || node.condition !== condition || node.incrementor !== incrementor || node.statement !== statement) {
        return updateNode(createFor(initializer, condition, incrementor, statement, node), node);
    }
    return node;
}
ts.updateFor = updateFor;
function createForIn(initializer, expression, statement, location) {
    var node = createNode(212, location);
    node.initializer = initializer;
    node.expression = expression;
    node.statement = statement;
    return node;
}
ts.createForIn = createForIn;
function updateForIn(node, initializer, expression, statement) {
    if (node.initializer !== initializer || node.expression !== expression || node.statement !== statement) {
        return updateNode(createForIn(initializer, expression, statement, node), node);
    }
    return node;
}
ts.updateForIn = updateForIn;
function createForOf(initializer, expression, statement, location) {
    var node = createNode(213, location);
    node.initializer = initializer;
    node.expression = expression;
    node.statement = statement;
    return node;
}
ts.createForOf = createForOf;
function updateForOf(node, initializer, expression, statement) {
    if (node.initializer !== initializer || node.expression !== expression || node.statement !== statement) {
        return updateNode(createForOf(initializer, expression, statement, node), node);
    }
    return node;
}
ts.updateForOf = updateForOf;
function createContinue(label, location) {
    var node = createNode(214, location);
    if (label) {
        node.label = label;
    }
    return node;
}
ts.createContinue = createContinue;
function updateContinue(node, label) {
    if (node.label !== label) {
        return updateNode(createContinue(label, node), node);
    }
    return node;
}
ts.updateContinue = updateContinue;
function createBreak(label, location) {
    var node = createNode(215, location);
    if (label) {
        node.label = label;
    }
    return node;
}
ts.createBreak = createBreak;
function updateBreak(node, label) {
    if (node.label !== label) {
        return updateNode(createBreak(label, node), node);
    }
    return node;
}
ts.updateBreak = updateBreak;
function createReturn(expression, location) {
    var node = createNode(216, location);
    node.expression = expression;
    return node;
}
ts.createReturn = createReturn;
function updateReturn(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createReturn(expression, node), node);
    }
    return node;
}
ts.updateReturn = updateReturn;
function createWith(expression, statement, location) {
    var node = createNode(217, location);
    node.expression = expression;
    node.statement = statement;
    return node;
}
ts.createWith = createWith;
function updateWith(node, expression, statement) {
    if (node.expression !== expression || node.statement !== statement) {
        return updateNode(createWith(expression, statement, node), node);
    }
    return node;
}
ts.updateWith = updateWith;
function createSwitch(expression, caseBlock, location) {
    var node = createNode(218, location);
    node.expression = parenthesizeExpressionForList(expression);
    node.caseBlock = caseBlock;
    return node;
}
ts.createSwitch = createSwitch;
function updateSwitch(node, expression, caseBlock) {
    if (node.expression !== expression || node.caseBlock !== caseBlock) {
        return updateNode(createSwitch(expression, caseBlock, node), node);
    }
    return node;
}
ts.updateSwitch = updateSwitch;
function createLabel(label, statement, location) {
    var node = createNode(219, location);
    node.label = typeof label === "string" ? createIdentifier(label) : label;
    node.statement = statement;
    return node;
}
ts.createLabel = createLabel;
function updateLabel(node, label, statement) {
    if (node.label !== label || node.statement !== statement) {
        return updateNode(createLabel(label, statement, node), node);
    }
    return node;
}
ts.updateLabel = updateLabel;
function createThrow(expression, location) {
    var node = createNode(220, location);
    node.expression = expression;
    return node;
}
ts.createThrow = createThrow;
function updateThrow(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createThrow(expression, node), node);
    }
    return node;
}
ts.updateThrow = updateThrow;
function createTry(tryBlock, catchClause, finallyBlock, location) {
    var node = createNode(221, location);
    node.tryBlock = tryBlock;
    node.catchClause = catchClause;
    node.finallyBlock = finallyBlock;
    return node;
}
ts.createTry = createTry;
function updateTry(node, tryBlock, catchClause, finallyBlock) {
    if (node.tryBlock !== tryBlock || node.catchClause !== catchClause || node.finallyBlock !== finallyBlock) {
        return updateNode(createTry(tryBlock, catchClause, finallyBlock, node), node);
    }
    return node;
}
ts.updateTry = updateTry;
function createCaseBlock(clauses, location) {
    var node = createNode(232, location);
    node.clauses = createNodeArray(clauses);
    return node;
}
ts.createCaseBlock = createCaseBlock;
function updateCaseBlock(node, clauses) {
    if (node.clauses !== clauses) {
        return updateNode(createCaseBlock(clauses, node), node);
    }
    return node;
}
ts.updateCaseBlock = updateCaseBlock;
function createFunctionDeclaration(decorators, modifiers, asteriskToken, name, typeParameters, parameters, type, body, location, flags) {
    var node = createNode(225, location, flags);
    node.decorators = decorators ? createNodeArray(decorators) : undefined;
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.asteriskToken = asteriskToken;
    node.name = typeof name === "string" ? createIdentifier(name) : name;
    node.typeParameters = typeParameters ? createNodeArray(typeParameters) : undefined;
    node.parameters = createNodeArray(parameters);
    node.type = type;
    node.body = body;
    return node;
}
ts.createFunctionDeclaration = createFunctionDeclaration;
function updateFunctionDeclaration(node, decorators, modifiers, name, typeParameters, parameters, type, body) {
    if (node.decorators !== decorators || node.modifiers !== modifiers || node.name !== name || node.typeParameters !== typeParameters || node.parameters !== parameters || node.type !== type || node.body !== body) {
        return updateNode(createFunctionDeclaration(decorators, modifiers, node.asteriskToken, name, typeParameters, parameters, type, body, node, node.flags), node);
    }
    return node;
}
ts.updateFunctionDeclaration = updateFunctionDeclaration;
function createClassDeclaration(decorators, modifiers, name, typeParameters, heritageClauses, members, location) {
    var node = createNode(226, location);
    node.decorators = decorators ? createNodeArray(decorators) : undefined;
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.name = name;
    node.typeParameters = typeParameters ? createNodeArray(typeParameters) : undefined;
    node.heritageClauses = createNodeArray(heritageClauses);
    node.members = createNodeArray(members);
    return node;
}
ts.createClassDeclaration = createClassDeclaration;
function updateClassDeclaration(node, decorators, modifiers, name, typeParameters, heritageClauses, members) {
    if (node.decorators !== decorators || node.modifiers !== modifiers || node.name !== name || node.typeParameters !== typeParameters || node.heritageClauses !== heritageClauses || node.members !== members) {
        return updateNode(createClassDeclaration(decorators, modifiers, name, typeParameters, heritageClauses, members, node), node);
    }
    return node;
}
ts.updateClassDeclaration = updateClassDeclaration;
function createImportDeclaration(decorators, modifiers, importClause, moduleSpecifier, location) {
    var node = createNode(235, location);
    node.decorators = decorators ? createNodeArray(decorators) : undefined;
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.importClause = importClause;
    node.moduleSpecifier = moduleSpecifier;
    return node;
}
ts.createImportDeclaration = createImportDeclaration;
function updateImportDeclaration(node, decorators, modifiers, importClause, moduleSpecifier) {
    if (node.decorators !== decorators || node.modifiers !== modifiers || node.importClause !== importClause || node.moduleSpecifier !== moduleSpecifier) {
        return updateNode(createImportDeclaration(decorators, modifiers, importClause, moduleSpecifier, node), node);
    }
    return node;
}
ts.updateImportDeclaration = updateImportDeclaration;
function createImportClause(name, namedBindings, location) {
    var node = createNode(236, location);
    node.name = name;
    node.namedBindings = namedBindings;
    return node;
}
ts.createImportClause = createImportClause;
function updateImportClause(node, name, namedBindings) {
    if (node.name !== name || node.namedBindings !== namedBindings) {
        return updateNode(createImportClause(name, namedBindings, node), node);
    }
    return node;
}
ts.updateImportClause = updateImportClause;
function createNamespaceImport(name, location) {
    var node = createNode(237, location);
    node.name = name;
    return node;
}
ts.createNamespaceImport = createNamespaceImport;
function updateNamespaceImport(node, name) {
    if (node.name !== name) {
        return updateNode(createNamespaceImport(name, node), node);
    }
    return node;
}
ts.updateNamespaceImport = updateNamespaceImport;
function createNamedImports(elements, location) {
    var node = createNode(238, location);
    node.elements = createNodeArray(elements);
    return node;
}
ts.createNamedImports = createNamedImports;
function updateNamedImports(node, elements) {
    if (node.elements !== elements) {
        return updateNode(createNamedImports(elements, node), node);
    }
    return node;
}
ts.updateNamedImports = updateNamedImports;
function createImportSpecifier(propertyName, name, location) {
    var node = createNode(239, location);
    node.propertyName = propertyName;
    node.name = name;
    return node;
}
ts.createImportSpecifier = createImportSpecifier;
function updateImportSpecifier(node, propertyName, name) {
    if (node.propertyName !== propertyName || node.name !== name) {
        return updateNode(createImportSpecifier(propertyName, name, node), node);
    }
    return node;
}
ts.updateImportSpecifier = updateImportSpecifier;
function createExportAssignment(decorators, modifiers, isExportEquals, expression, location) {
    var node = createNode(240, location);
    node.decorators = decorators ? createNodeArray(decorators) : undefined;
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.isExportEquals = isExportEquals;
    node.expression = expression;
    return node;
}
ts.createExportAssignment = createExportAssignment;
function updateExportAssignment(node, decorators, modifiers, expression) {
    if (node.decorators !== decorators || node.modifiers !== modifiers || node.expression !== expression) {
        return updateNode(createExportAssignment(decorators, modifiers, node.isExportEquals, expression, node), node);
    }
    return node;
}
ts.updateExportAssignment = updateExportAssignment;
function createExportDeclaration(decorators, modifiers, exportClause, moduleSpecifier, location) {
    var node = createNode(241, location);
    node.decorators = decorators ? createNodeArray(decorators) : undefined;
    node.modifiers = modifiers ? createNodeArray(modifiers) : undefined;
    node.exportClause = exportClause;
    node.moduleSpecifier = moduleSpecifier;
    return node;
}
ts.createExportDeclaration = createExportDeclaration;
function updateExportDeclaration(node, decorators, modifiers, exportClause, moduleSpecifier) {
    if (node.decorators !== decorators || node.modifiers !== modifiers || node.exportClause !== exportClause || node.moduleSpecifier !== moduleSpecifier) {
        return updateNode(createExportDeclaration(decorators, modifiers, exportClause, moduleSpecifier, node), node);
    }
    return node;
}
ts.updateExportDeclaration = updateExportDeclaration;
function createNamedExports(elements, location) {
    var node = createNode(242, location);
    node.elements = createNodeArray(elements);
    return node;
}
ts.createNamedExports = createNamedExports;
function updateNamedExports(node, elements) {
    if (node.elements !== elements) {
        return updateNode(createNamedExports(elements, node), node);
    }
    return node;
}
ts.updateNamedExports = updateNamedExports;
function createExportSpecifier(name, propertyName, location) {
    var node = createNode(243, location);
    node.name = typeof name === "string" ? createIdentifier(name) : name;
    node.propertyName = typeof propertyName === "string" ? createIdentifier(propertyName) : propertyName;
    return node;
}
ts.createExportSpecifier = createExportSpecifier;
function updateExportSpecifier(node, name, propertyName) {
    if (node.name !== name || node.propertyName !== propertyName) {
        return updateNode(createExportSpecifier(name, propertyName, node), node);
    }
    return node;
}
ts.updateExportSpecifier = updateExportSpecifier;
function createJsxElement(openingElement, children, closingElement, location) {
    var node = createNode(246, location);
    node.openingElement = openingElement;
    node.children = createNodeArray(children);
    node.closingElement = closingElement;
    return node;
}
ts.createJsxElement = createJsxElement;
function updateJsxElement(node, openingElement, children, closingElement) {
    if (node.openingElement !== openingElement || node.children !== children || node.closingElement !== closingElement) {
        return updateNode(createJsxElement(openingElement, children, closingElement, node), node);
    }
    return node;
}
ts.updateJsxElement = updateJsxElement;
function createJsxSelfClosingElement(tagName, attributes, location) {
    var node = createNode(247, location);
    node.tagName = tagName;
    node.attributes = createNodeArray(attributes);
    return node;
}
ts.createJsxSelfClosingElement = createJsxSelfClosingElement;
function updateJsxSelfClosingElement(node, tagName, attributes) {
    if (node.tagName !== tagName || node.attributes !== attributes) {
        return updateNode(createJsxSelfClosingElement(tagName, attributes, node), node);
    }
    return node;
}
ts.updateJsxSelfClosingElement = updateJsxSelfClosingElement;
function createJsxOpeningElement(tagName, attributes, location) {
    var node = createNode(248, location);
    node.tagName = tagName;
    node.attributes = createNodeArray(attributes);
    return node;
}
ts.createJsxOpeningElement = createJsxOpeningElement;
function updateJsxOpeningElement(node, tagName, attributes) {
    if (node.tagName !== tagName || node.attributes !== attributes) {
        return updateNode(createJsxOpeningElement(tagName, attributes, node), node);
    }
    return node;
}
ts.updateJsxOpeningElement = updateJsxOpeningElement;
function createJsxClosingElement(tagName, location) {
    var node = createNode(249, location);
    node.tagName = tagName;
    return node;
}
ts.createJsxClosingElement = createJsxClosingElement;
function updateJsxClosingElement(node, tagName) {
    if (node.tagName !== tagName) {
        return updateNode(createJsxClosingElement(tagName, node), node);
    }
    return node;
}
ts.updateJsxClosingElement = updateJsxClosingElement;
function createJsxAttribute(name, initializer, location) {
    var node = createNode(250, location);
    node.name = name;
    node.initializer = initializer;
    return node;
}
ts.createJsxAttribute = createJsxAttribute;
function updateJsxAttribute(node, name, initializer) {
    if (node.name !== name || node.initializer !== initializer) {
        return updateNode(createJsxAttribute(name, initializer, node), node);
    }
    return node;
}
ts.updateJsxAttribute = updateJsxAttribute;
function createJsxSpreadAttribute(expression, location) {
    var node = createNode(251, location);
    node.expression = expression;
    return node;
}
ts.createJsxSpreadAttribute = createJsxSpreadAttribute;
function updateJsxSpreadAttribute(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createJsxSpreadAttribute(expression, node), node);
    }
    return node;
}
ts.updateJsxSpreadAttribute = updateJsxSpreadAttribute;
function createJsxExpression(expression, location) {
    var node = createNode(252, location);
    node.expression = expression;
    return node;
}
ts.createJsxExpression = createJsxExpression;
function updateJsxExpression(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createJsxExpression(expression, node), node);
    }
    return node;
}
ts.updateJsxExpression = updateJsxExpression;
function createHeritageClause(token, types, location) {
    var node = createNode(255, location);
    node.token = token;
    node.types = createNodeArray(types);
    return node;
}
ts.createHeritageClause = createHeritageClause;
function updateHeritageClause(node, types) {
    if (node.types !== types) {
        return updateNode(createHeritageClause(node.token, types, node), node);
    }
    return node;
}
ts.updateHeritageClause = updateHeritageClause;
function createCaseClause(expression, statements, location) {
    var node = createNode(253, location);
    node.expression = parenthesizeExpressionForList(expression);
    node.statements = createNodeArray(statements);
    return node;
}
ts.createCaseClause = createCaseClause;
function updateCaseClause(node, expression, statements) {
    if (node.expression !== expression || node.statements !== statements) {
        return updateNode(createCaseClause(expression, statements, node), node);
    }
    return node;
}
ts.updateCaseClause = updateCaseClause;
function createDefaultClause(statements, location) {
    var node = createNode(254, location);
    node.statements = createNodeArray(statements);
    return node;
}
ts.createDefaultClause = createDefaultClause;
function updateDefaultClause(node, statements) {
    if (node.statements !== statements) {
        return updateNode(createDefaultClause(statements, node), node);
    }
    return node;
}
ts.updateDefaultClause = updateDefaultClause;
function createCatchClause(variableDeclaration, block, location) {
    var node = createNode(256, location);
    node.variableDeclaration = typeof variableDeclaration === "string" ? createVariableDeclaration(variableDeclaration) : variableDeclaration;
    node.block = block;
    return node;
}
ts.createCatchClause = createCatchClause;
function updateCatchClause(node, variableDeclaration, block) {
    if (node.variableDeclaration !== variableDeclaration || node.block !== block) {
        return updateNode(createCatchClause(variableDeclaration, block, node), node);
    }
    return node;
}
ts.updateCatchClause = updateCatchClause;
function createPropertyAssignment(name, initializer, location) {
    var node = createNode(257, location);
    node.name = typeof name === "string" ? createIdentifier(name) : name;
    node.questionToken = undefined;
    node.initializer = initializer !== undefined ? parenthesizeExpressionForList(initializer) : undefined;
    return node;
}
ts.createPropertyAssignment = createPropertyAssignment;
function updatePropertyAssignment(node, name, initializer) {
    if (node.name !== name || node.initializer !== initializer) {
        return updateNode(createPropertyAssignment(name, initializer, node), node);
    }
    return node;
}
ts.updatePropertyAssignment = updatePropertyAssignment;
function createShorthandPropertyAssignment(name, objectAssignmentInitializer, location) {
    var node = createNode(258, location);
    node.name = typeof name === "string" ? createIdentifier(name) : name;
    node.objectAssignmentInitializer = objectAssignmentInitializer !== undefined ? parenthesizeExpressionForList(objectAssignmentInitializer) : undefined;
    return node;
}
ts.createShorthandPropertyAssignment = createShorthandPropertyAssignment;
function createSpreadAssignment(expression, location) {
    var node = createNode(259, location);
    node.expression = expression !== undefined ? parenthesizeExpressionForList(expression) : undefined;
    return node;
}
ts.createSpreadAssignment = createSpreadAssignment;
function updateShorthandPropertyAssignment(node, name, objectAssignmentInitializer) {
    if (node.name !== name || node.objectAssignmentInitializer !== objectAssignmentInitializer) {
        return updateNode(createShorthandPropertyAssignment(name, objectAssignmentInitializer, node), node);
    }
    return node;
}
ts.updateShorthandPropertyAssignment = updateShorthandPropertyAssignment;
function updateSpreadAssignment(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createSpreadAssignment(expression, node), node);
    }
    return node;
}
ts.updateSpreadAssignment = updateSpreadAssignment;
function updateSourceFileNode(node, statements) {
    if (node.statements !== statements) {
        var updated = createNode(261, node, node.flags);
        updated.statements = createNodeArray(statements);
        updated.endOfFileToken = node.endOfFileToken;
        updated.fileName = node.fileName;
        updated.path = node.path;
        updated.text = node.text;
        if (node.amdDependencies !== undefined)
            updated.amdDependencies = node.amdDependencies;
        if (node.moduleName !== undefined)
            updated.moduleName = node.moduleName;
        if (node.referencedFiles !== undefined)
            updated.referencedFiles = node.referencedFiles;
        if (node.typeReferenceDirectives !== undefined)
            updated.typeReferenceDirectives = node.typeReferenceDirectives;
        if (node.languageVariant !== undefined)
            updated.languageVariant = node.languageVariant;
        if (node.isDeclarationFile !== undefined)
            updated.isDeclarationFile = node.isDeclarationFile;
        if (node.renamedDependencies !== undefined)
            updated.renamedDependencies = node.renamedDependencies;
        if (node.hasNoDefaultLib !== undefined)
            updated.hasNoDefaultLib = node.hasNoDefaultLib;
        if (node.languageVersion !== undefined)
            updated.languageVersion = node.languageVersion;
        if (node.scriptKind !== undefined)
            updated.scriptKind = node.scriptKind;
        if (node.externalModuleIndicator !== undefined)
            updated.externalModuleIndicator = node.externalModuleIndicator;
        if (node.commonJsModuleIndicator !== undefined)
            updated.commonJsModuleIndicator = node.commonJsModuleIndicator;
        if (node.identifiers !== undefined)
            updated.identifiers = node.identifiers;
        if (node.nodeCount !== undefined)
            updated.nodeCount = node.nodeCount;
        if (node.identifierCount !== undefined)
            updated.identifierCount = node.identifierCount;
        if (node.symbolCount !== undefined)
            updated.symbolCount = node.symbolCount;
        if (node.parseDiagnostics !== undefined)
            updated.parseDiagnostics = node.parseDiagnostics;
        if (node.bindDiagnostics !== undefined)
            updated.bindDiagnostics = node.bindDiagnostics;
        if (node.lineMap !== undefined)
            updated.lineMap = node.lineMap;
        if (node.classifiableNames !== undefined)
            updated.classifiableNames = node.classifiableNames;
        if (node.resolvedModules !== undefined)
            updated.resolvedModules = node.resolvedModules;
        if (node.resolvedTypeReferenceDirectiveNames !== undefined)
            updated.resolvedTypeReferenceDirectiveNames = node.resolvedTypeReferenceDirectiveNames;
        if (node.imports !== undefined)
            updated.imports = node.imports;
        if (node.moduleAugmentations !== undefined)
            updated.moduleAugmentations = node.moduleAugmentations;
        return updateNode(updated, node);
    }
    return node;
}
ts.updateSourceFileNode = updateSourceFileNode;
function createNotEmittedStatement(original) {
    var node = createNode(293, original);
    node.original = original;
    return node;
}
ts.createNotEmittedStatement = createNotEmittedStatement;
function createEndOfDeclarationMarker(original) {
    var node = createNode(296);
    node.emitNode = {};
    node.original = original;
    return node;
}
ts.createEndOfDeclarationMarker = createEndOfDeclarationMarker;
function createMergeDeclarationMarker(original) {
    var node = createNode(295);
    node.emitNode = {};
    node.original = original;
    return node;
}
ts.createMergeDeclarationMarker = createMergeDeclarationMarker;
function createPartiallyEmittedExpression(expression, original, location) {
    var node = createNode(294, location || original);
    node.expression = expression;
    node.original = original;
    return node;
}
ts.createPartiallyEmittedExpression = createPartiallyEmittedExpression;
function updatePartiallyEmittedExpression(node, expression) {
    if (node.expression !== expression) {
        return updateNode(createPartiallyEmittedExpression(expression, node.original, node), node);
    }
    return node;
}
ts.updatePartiallyEmittedExpression = updatePartiallyEmittedExpression;
function createComma(left, right) {
    return createBinary(left, 25, right);
}
ts.createComma = createComma;
function createLessThan(left, right, location) {
    return createBinary(left, 26, right, location);
}
ts.createLessThan = createLessThan;
function createAssignment(left, right, location) {
    return createBinary(left, 57, right, location);
}
ts.createAssignment = createAssignment;
function createStrictEquality(left, right) {
    return createBinary(left, 33, right);
}
ts.createStrictEquality = createStrictEquality;
function createStrictInequality(left, right) {
    return createBinary(left, 34, right);
}
ts.createStrictInequality = createStrictInequality;
function createAdd(left, right) {
    return createBinary(left, 36, right);
}
ts.createAdd = createAdd;
function createSubtract(left, right) {
    return createBinary(left, 37, right);
}
ts.createSubtract = createSubtract;
function createPostfixIncrement(operand, location) {
    return createPostfix(operand, 42, location);
}
ts.createPostfixIncrement = createPostfixIncrement;
function createLogicalAnd(left, right) {
    return createBinary(left, 52, right);
}
ts.createLogicalAnd = createLogicalAnd;
function createLogicalOr(left, right) {
    return createBinary(left, 53, right);
}
ts.createLogicalOr = createLogicalOr;
function createLogicalNot(operand) {
    return createPrefix(50, operand);
}
ts.createLogicalNot = createLogicalNot;
function createVoidZero() {
    return createVoid(createLiteral(0));
}
ts.createVoidZero = createVoidZero;
function createTypeCheck(value, tag) {
    return tag === "undefined"
        ? createStrictEquality(value, createVoidZero())
        : createStrictEquality(createTypeOf(value), createLiteral(tag));
}
ts.createTypeCheck = createTypeCheck;
function createMemberAccessForPropertyName(target, memberName, location) {
    if (ts.isComputedPropertyName(memberName)) {
        return createElementAccess(target, memberName.expression, location);
    }
    else {
        var expression = ts.isIdentifier(memberName) ? createPropertyAccess(target, memberName, location) : createElementAccess(target, memberName, location);
        (expression.emitNode || (expression.emitNode = {})).flags |= 64;
        return expression;
    }
}
ts.createMemberAccessForPropertyName = createMemberAccessForPropertyName;
function createFunctionCall(func, thisArg, argumentsList, location) {
    return createCall(createPropertyAccess(func, "call"), undefined, [
        thisArg
    ].concat(argumentsList), location);
}
ts.createFunctionCall = createFunctionCall;
function createFunctionApply(func, thisArg, argumentsExpression, location) {
    return createCall(createPropertyAccess(func, "apply"), undefined, [
        thisArg,
        argumentsExpression
    ], location);
}
ts.createFunctionApply = createFunctionApply;
function createArraySlice(array, start) {
    var argumentsList = [];
    if (start !== undefined) {
        argumentsList.push(typeof start === "number" ? createLiteral(start) : start);
    }
    return createCall(createPropertyAccess(array, "slice"), undefined, argumentsList);
}
ts.createArraySlice = createArraySlice;
function createArrayConcat(array, values) {
    return createCall(createPropertyAccess(array, "concat"), undefined, values);
}
ts.createArrayConcat = createArrayConcat;
function createMathPow(left, right, location) {
    return createCall(createPropertyAccess(createIdentifier("Math"), "pow"), undefined, [left, right], location);
}
ts.createMathPow = createMathPow;
function createReactNamespace(reactNamespace, parent) {
    var react = createIdentifier(reactNamespace || "React");
    react.flags &= ~8;
    react.parent = ts.getParseTreeNode(parent);
    return react;
}
function createJsxFactoryExpressionFromEntityName(jsxFactory, parent) {
    if (ts.isQualifiedName(jsxFactory)) {
        var left = createJsxFactoryExpressionFromEntityName(jsxFactory.left, parent);
        var right = createSynthesizedNode(70);
        right.text = jsxFactory.right.text;
        return createPropertyAccess(left, right);
    }
    else {
        return createReactNamespace(jsxFactory.text, parent);
    }
}
function createJsxFactoryExpression(jsxFactoryEntity, reactNamespace, parent) {
    return jsxFactoryEntity ?
        createJsxFactoryExpressionFromEntityName(jsxFactoryEntity, parent) :
        createPropertyAccess(createReactNamespace(reactNamespace, parent), "createElement");
}
function createExpressionForJsxElement(jsxFactoryEntity, reactNamespace, tagName, props, children, parentElement, location) {
    var argumentsList = [tagName];
    if (props) {
        argumentsList.push(props);
    }
    if (children && children.length > 0) {
        if (!props) {
            argumentsList.push(createNull());
        }
        if (children.length > 1) {
            for (var _i = 0, children_1 = children; _i < children_1.length; _i++) {
                var child = children_1[_i];
                child.startsOnNewLine = true;
                argumentsList.push(child);
            }
        }
        else {
            argumentsList.push(children[0]);
        }
    }
    return createCall(createJsxFactoryExpression(jsxFactoryEntity, reactNamespace, parentElement), undefined, argumentsList, location);
}
ts.createExpressionForJsxElement = createExpressionForJsxElement;
function createExportDefault(expression) {
    return createExportAssignment(undefined, undefined, false, expression);
}
ts.createExportDefault = createExportDefault;
function createExternalModuleExport(exportName) {
    return createExportDeclaration(undefined, undefined, createNamedExports([createExportSpecifier(exportName)]));
}
ts.createExternalModuleExport = createExternalModuleExport;
function createLetStatement(name, initializer, location) {
    return createVariableStatement(undefined, createLetDeclarationList([createVariableDeclaration(name, undefined, initializer)]), location);
}
ts.createLetStatement = createLetStatement;
function createLetDeclarationList(declarations, location) {
    return createVariableDeclarationList(declarations, location, 1);
}
ts.createLetDeclarationList = createLetDeclarationList;
function createConstDeclarationList(declarations, location) {
    return createVariableDeclarationList(declarations, location, 2);
}
ts.createConstDeclarationList = createConstDeclarationList;
function getHelperName(name) {
    return setEmitFlags(createIdentifier(name), 4096 | 2);
}
ts.getHelperName = getHelperName;
function shouldBeCapturedInTempVariable(node, cacheIdentifiers) {
    var target = skipParentheses(node);
    switch (target.kind) {
        case 70:
            return cacheIdentifiers;
        case 98:
        case 8:
        case 9:
            return false;
        case 175:
            var elements = target.elements;
            if (elements.length === 0) {
                return false;
            }
            return true;
        case 176:
            return target.properties.length > 0;
        default:
            return true;
    }
}
function createCallBinding(expression, recordTempVariable, languageVersion, cacheIdentifiers) {
    var callee = skipOuterExpressions(expression, 7);
    var thisArg;
    var target;
    if (ts.isSuperProperty(callee)) {
        thisArg = createThis();
        target = callee;
    }
    else if (callee.kind === 96) {
        thisArg = createThis();
        target = languageVersion < 2 ? createIdentifier("_super", callee) : callee;
    }
    else {
        switch (callee.kind) {
            case 177: {
                if (shouldBeCapturedInTempVariable(callee.expression, cacheIdentifiers)) {
                    thisArg = createTempVariable(recordTempVariable);
                    target = createPropertyAccess(createAssignment(thisArg, callee.expression, callee.expression), callee.name, callee);
                }
                else {
                    thisArg = callee.expression;
                    target = callee;
                }
                break;
            }
            case 178: {
                if (shouldBeCapturedInTempVariable(callee.expression, cacheIdentifiers)) {
                    thisArg = createTempVariable(recordTempVariable);
                    target = createElementAccess(createAssignment(thisArg, callee.expression, callee.expression), callee.argumentExpression, callee);
                }
                else {
                    thisArg = callee.expression;
                    target = callee;
                }
                break;
            }
            default: {
                thisArg = createVoidZero();
                target = parenthesizeForAccess(expression);
                break;
            }
        }
    }
    return { target: target, thisArg: thisArg };
}
ts.createCallBinding = createCallBinding;
function inlineExpressions(expressions) {
    return ts.reduceLeft(expressions, createComma);
}
ts.inlineExpressions = inlineExpressions;
function createExpressionFromEntityName(node) {
    if (ts.isQualifiedName(node)) {
        var left = createExpressionFromEntityName(node.left);
        var right = getMutableClone(node.right);
        return createPropertyAccess(left, right, node);
    }
    else {
        return getMutableClone(node);
    }
}
ts.createExpressionFromEntityName = createExpressionFromEntityName;
function createExpressionForPropertyName(memberName) {
    if (ts.isIdentifier(memberName)) {
        return createLiteral(memberName, undefined);
    }
    else if (ts.isComputedPropertyName(memberName)) {
        return getMutableClone(memberName.expression);
    }
    else {
        return getMutableClone(memberName);
    }
}
ts.createExpressionForPropertyName = createExpressionForPropertyName;
function createExpressionForObjectLiteralElementLike(node, property, receiver) {
    switch (property.kind) {
        case 151:
        case 152:
            return createExpressionForAccessorDeclaration(node.properties, property, receiver, node.multiLine);
        case 257:
            return createExpressionForPropertyAssignment(property, receiver);
        case 258:
            return createExpressionForShorthandPropertyAssignment(property, receiver);
        case 149:
            return createExpressionForMethodDeclaration(property, receiver);
    }
}
ts.createExpressionForObjectLiteralElementLike = createExpressionForObjectLiteralElementLike;
function createExpressionForAccessorDeclaration(properties, property, receiver, multiLine) {
    var _a = ts.getAllAccessorDeclarations(properties, property), firstAccessor = _a.firstAccessor, getAccessor = _a.getAccessor, setAccessor = _a.setAccessor;
    if (property === firstAccessor) {
        var properties_1 = [];
        if (getAccessor) {
            var getterFunction = createFunctionExpression(getAccessor.modifiers, undefined, undefined, undefined, getAccessor.parameters, undefined, getAccessor.body, getAccessor);
            setOriginalNode(getterFunction, getAccessor);
            var getter = createPropertyAssignment("get", getterFunction);
            properties_1.push(getter);
        }
        if (setAccessor) {
            var setterFunction = createFunctionExpression(setAccessor.modifiers, undefined, undefined, undefined, setAccessor.parameters, undefined, setAccessor.body, setAccessor);
            setOriginalNode(setterFunction, setAccessor);
            var setter = createPropertyAssignment("set", setterFunction);
            properties_1.push(setter);
        }
        properties_1.push(createPropertyAssignment("enumerable", createLiteral(true)));
        properties_1.push(createPropertyAssignment("configurable", createLiteral(true)));
        var expression = createCall(createPropertyAccess(createIdentifier("Object"), "defineProperty"), undefined, [
            receiver,
            createExpressionForPropertyName(property.name),
            createObjectLiteral(properties_1, undefined, multiLine)
        ], firstAccessor);
        return ts.aggregateTransformFlags(expression);
    }
    return undefined;
}
function createExpressionForPropertyAssignment(property, receiver) {
    return ts.aggregateTransformFlags(setOriginalNode(createAssignment(createMemberAccessForPropertyName(receiver, property.name, property.name), property.initializer, property), property));
}
function createExpressionForShorthandPropertyAssignment(property, receiver) {
    return ts.aggregateTransformFlags(setOriginalNode(createAssignment(createMemberAccessForPropertyName(receiver, property.name, property.name), getSynthesizedClone(property.name), property), property));
}
function createExpressionForMethodDeclaration(method, receiver) {
    return ts.aggregateTransformFlags(setOriginalNode(createAssignment(createMemberAccessForPropertyName(receiver, method.name, method.name), setOriginalNode(createFunctionExpression(method.modifiers, method.asteriskToken, undefined, undefined, method.parameters, undefined, method.body, method), method), method), method));
}
function getLocalName(node, allowComments, allowSourceMaps) {
    return getName(node, allowComments, allowSourceMaps, 16384);
}
ts.getLocalName = getLocalName;
function isLocalName(node) {
    return (getEmitFlags(node) & 16384) !== 0;
}
ts.isLocalName = isLocalName;
function getExportName(node, allowComments, allowSourceMaps) {
    return getName(node, allowComments, allowSourceMaps, 8192);
}
ts.getExportName = getExportName;
function isExportName(node) {
    return (getEmitFlags(node) & 8192) !== 0;
}
ts.isExportName = isExportName;
function getDeclarationName(node, allowComments, allowSourceMaps) {
    return getName(node, allowComments, allowSourceMaps);
}
ts.getDeclarationName = getDeclarationName;
function getName(node, allowComments, allowSourceMaps, emitFlags) {
    if (node.name && ts.isIdentifier(node.name) && !ts.isGeneratedIdentifier(node.name)) {
        var name_8 = getMutableClone(node.name);
        emitFlags |= getEmitFlags(node.name);
        if (!allowSourceMaps)
            emitFlags |= 48;
        if (!allowComments)
            emitFlags |= 1536;
        if (emitFlags)
            setEmitFlags(name_8, emitFlags);
        return name_8;
    }
    return getGeneratedNameForNode(node);
}
function getExternalModuleOrNamespaceExportName(ns, node, allowComments, allowSourceMaps) {
    if (ns && ts.hasModifier(node, 1)) {
        return getNamespaceMemberName(ns, getName(node), allowComments, allowSourceMaps);
    }
    return getExportName(node, allowComments, allowSourceMaps);
}
ts.getExternalModuleOrNamespaceExportName = getExternalModuleOrNamespaceExportName;
function getNamespaceMemberName(ns, name, allowComments, allowSourceMaps) {
    var qualifiedName = createPropertyAccess(ns, ts.nodeIsSynthesized(name) ? name : getSynthesizedClone(name), name);
    var emitFlags;
    if (!allowSourceMaps)
        emitFlags |= 48;
    if (!allowComments)
        emitFlags |= 1536;
    if (emitFlags)
        setEmitFlags(qualifiedName, emitFlags);
    return qualifiedName;
}
ts.getNamespaceMemberName = getNamespaceMemberName;
function convertToFunctionBody(node, multiLine) {
    return ts.isBlock(node) ? node : createBlock([createReturn(node, node)], node, multiLine);
}
ts.convertToFunctionBody = convertToFunctionBody;
function isUseStrictPrologue(node) {
    return node.expression.text === "use strict";
}
function addPrologueDirectives(target, source, ensureUseStrict, visitor) {
    ts.Debug.assert(target.length === 0, "Prologue directives should be at the first statement in the target statements array");
    var foundUseStrict = false;
    var statementOffset = 0;
    var numStatements = source.length;
    while (statementOffset < numStatements) {
        var statement = source[statementOffset];
        if (ts.isPrologueDirective(statement)) {
            if (isUseStrictPrologue(statement)) {
                foundUseStrict = true;
            }
            target.push(statement);
        }
        else {
            break;
        }
        statementOffset++;
    }
    if (ensureUseStrict && !foundUseStrict) {
        target.push(startOnNewLine(createStatement(createLiteral("use strict"))));
    }
    while (statementOffset < numStatements) {
        var statement = source[statementOffset];
        if (getEmitFlags(statement) & 524288) {
            target.push(visitor ? ts.visitNode(statement, visitor, ts.isStatement) : statement);
        }
        else {
            break;
        }
        statementOffset++;
    }
    return statementOffset;
}
ts.addPrologueDirectives = addPrologueDirectives;
function startsWithUseStrict(statements) {
    var firstStatement = ts.firstOrUndefined(statements);
    return firstStatement !== undefined
        && ts.isPrologueDirective(firstStatement)
        && isUseStrictPrologue(firstStatement);
}
ts.startsWithUseStrict = startsWithUseStrict;
function ensureUseStrict(statements) {
    var foundUseStrict = false;
    for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
        var statement = statements_1[_i];
        if (ts.isPrologueDirective(statement)) {
            if (isUseStrictPrologue(statement)) {
                foundUseStrict = true;
                break;
            }
        }
        else {
            break;
        }
    }
    if (!foundUseStrict) {
        return createNodeArray([
            startOnNewLine(createStatement(createLiteral("use strict")))
        ].concat(statements), statements);
    }
    return statements;
}
ts.ensureUseStrict = ensureUseStrict;
function parenthesizeBinaryOperand(binaryOperator, operand, isLeftSideOfBinary, leftOperand) {
    var skipped = skipPartiallyEmittedExpressions(operand);
    if (skipped.kind === 183) {
        return operand;
    }
    return binaryOperandNeedsParentheses(binaryOperator, operand, isLeftSideOfBinary, leftOperand)
        ? createParen(operand)
        : operand;
}
ts.parenthesizeBinaryOperand = parenthesizeBinaryOperand;
function binaryOperandNeedsParentheses(binaryOperator, operand, isLeftSideOfBinary, leftOperand) {
    var binaryOperatorPrecedence = ts.getOperatorPrecedence(192, binaryOperator);
    var binaryOperatorAssociativity = ts.getOperatorAssociativity(192, binaryOperator);
    var emittedOperand = skipPartiallyEmittedExpressions(operand);
    var operandPrecedence = ts.getExpressionPrecedence(emittedOperand);
    switch (ts.compareValues(operandPrecedence, binaryOperatorPrecedence)) {
        case -1:
            if (!isLeftSideOfBinary
                && binaryOperatorAssociativity === 1
                && operand.kind === 195) {
                return false;
            }
            return true;
        case 1:
            return false;
        case 0:
            if (isLeftSideOfBinary) {
                return binaryOperatorAssociativity === 1;
            }
            else {
                if (ts.isBinaryExpression(emittedOperand)
                    && emittedOperand.operatorToken.kind === binaryOperator) {
                    if (operatorHasAssociativeProperty(binaryOperator)) {
                        return false;
                    }
                    if (binaryOperator === 36) {
                        var leftKind = leftOperand ? getLiteralKindOfBinaryPlusOperand(leftOperand) : 0;
                        if (ts.isLiteralKind(leftKind) && leftKind === getLiteralKindOfBinaryPlusOperand(emittedOperand)) {
                            return false;
                        }
                    }
                }
                var operandAssociativity = ts.getExpressionAssociativity(emittedOperand);
                return operandAssociativity === 0;
            }
    }
}
function operatorHasAssociativeProperty(binaryOperator) {
    return binaryOperator === 38
        || binaryOperator === 48
        || binaryOperator === 47
        || binaryOperator === 49;
}
function getLiteralKindOfBinaryPlusOperand(node) {
    node = skipPartiallyEmittedExpressions(node);
    if (ts.isLiteralKind(node.kind)) {
        return node.kind;
    }
    if (node.kind === 192 && node.operatorToken.kind === 36) {
        if (node.cachedLiteralKind !== undefined) {
            return node.cachedLiteralKind;
        }
        var leftKind = getLiteralKindOfBinaryPlusOperand(node.left);
        var literalKind = ts.isLiteralKind(leftKind)
            && leftKind === getLiteralKindOfBinaryPlusOperand(node.right)
            ? leftKind
            : 0;
        node.cachedLiteralKind = literalKind;
        return literalKind;
    }
    return 0;
}
function parenthesizeForConditionalHead(condition) {
    var conditionalPrecedence = ts.getOperatorPrecedence(193, 54);
    var emittedCondition = skipPartiallyEmittedExpressions(condition);
    var conditionPrecedence = ts.getExpressionPrecedence(emittedCondition);
    if (ts.compareValues(conditionPrecedence, conditionalPrecedence) === -1) {
        return createParen(condition);
    }
    return condition;
}
ts.parenthesizeForConditionalHead = parenthesizeForConditionalHead;
function parenthesizeSubexpressionOfConditionalExpression(e) {
    return e.kind === 192 && e.operatorToken.kind === 25
        ? createParen(e)
        : e;
}
function parenthesizeForNew(expression) {
    var emittedExpression = skipPartiallyEmittedExpressions(expression);
    switch (emittedExpression.kind) {
        case 179:
            return createParen(expression);
        case 180:
            return emittedExpression.arguments
                ? expression
                : createParen(expression);
    }
    return parenthesizeForAccess(expression);
}
ts.parenthesizeForNew = parenthesizeForNew;
function parenthesizeForAccess(expression) {
    var emittedExpression = skipPartiallyEmittedExpressions(expression);
    if (ts.isLeftHandSideExpression(emittedExpression)
        && (emittedExpression.kind !== 180 || emittedExpression.arguments)
        && emittedExpression.kind !== 8) {
        return expression;
    }
    return createParen(expression, expression);
}
ts.parenthesizeForAccess = parenthesizeForAccess;
function parenthesizePostfixOperand(operand) {
    return ts.isLeftHandSideExpression(operand)
        ? operand
        : createParen(operand, operand);
}
ts.parenthesizePostfixOperand = parenthesizePostfixOperand;
function parenthesizePrefixOperand(operand) {
    return ts.isUnaryExpression(operand)
        ? operand
        : createParen(operand, operand);
}
ts.parenthesizePrefixOperand = parenthesizePrefixOperand;
function parenthesizeListElements(elements) {
    var result;
    for (var i = 0; i < elements.length; i++) {
        var element = parenthesizeExpressionForList(elements[i]);
        if (result !== undefined || element !== elements[i]) {
            if (result === undefined) {
                result = elements.slice(0, i);
            }
            result.push(element);
        }
    }
    if (result !== undefined) {
        return createNodeArray(result, elements, elements.hasTrailingComma);
    }
    return elements;
}
function parenthesizeExpressionForList(expression) {
    var emittedExpression = skipPartiallyEmittedExpressions(expression);
    var expressionPrecedence = ts.getExpressionPrecedence(emittedExpression);
    var commaPrecedence = ts.getOperatorPrecedence(192, 25);
    return expressionPrecedence > commaPrecedence
        ? expression
        : createParen(expression, expression);
}
ts.parenthesizeExpressionForList = parenthesizeExpressionForList;
function parenthesizeExpressionForExpressionStatement(expression) {
    var emittedExpression = skipPartiallyEmittedExpressions(expression);
    if (ts.isCallExpression(emittedExpression)) {
        var callee = emittedExpression.expression;
        var kind = skipPartiallyEmittedExpressions(callee).kind;
        if (kind === 184 || kind === 185) {
            var mutableCall = getMutableClone(emittedExpression);
            mutableCall.expression = createParen(callee, callee);
            return recreatePartiallyEmittedExpressions(expression, mutableCall);
        }
    }
    else {
        var leftmostExpressionKind = getLeftmostExpression(emittedExpression).kind;
        if (leftmostExpressionKind === 176 || leftmostExpressionKind === 184) {
            return createParen(expression, expression);
        }
    }
    return expression;
}
ts.parenthesizeExpressionForExpressionStatement = parenthesizeExpressionForExpressionStatement;
function recreatePartiallyEmittedExpressions(originalOuterExpression, newInnerExpression) {
    if (ts.isPartiallyEmittedExpression(originalOuterExpression)) {
        var clone_1 = getMutableClone(originalOuterExpression);
        clone_1.expression = recreatePartiallyEmittedExpressions(clone_1.expression, newInnerExpression);
        return clone_1;
    }
    return newInnerExpression;
}
function getLeftmostExpression(node) {
    while (true) {
        switch (node.kind) {
            case 191:
                node = node.operand;
                continue;
            case 192:
                node = node.left;
                continue;
            case 193:
                node = node.condition;
                continue;
            case 179:
            case 178:
            case 177:
                node = node.expression;
                continue;
            case 294:
                node = node.expression;
                continue;
        }
        return node;
    }
}
function parenthesizeConciseBody(body) {
    var emittedBody = skipPartiallyEmittedExpressions(body);
    if (emittedBody.kind === 176) {
        return createParen(body, body);
    }
    return body;
}
ts.parenthesizeConciseBody = parenthesizeConciseBody;
function skipOuterExpressions(node, kinds) {
    if (kinds === void 0) { kinds = 7; }
    var previousNode;
    do {
        previousNode = node;
        if (kinds & 1) {
            node = skipParentheses(node);
        }
        if (kinds & 2) {
            node = skipAssertions(node);
        }
        if (kinds & 4) {
            node = skipPartiallyEmittedExpressions(node);
        }
    } while (previousNode !== node);
    return node;
}
ts.skipOuterExpressions = skipOuterExpressions;
function skipParentheses(node) {
    while (node.kind === 183) {
        node = node.expression;
    }
    return node;
}
ts.skipParentheses = skipParentheses;
function skipAssertions(node) {
    while (ts.isAssertionExpression(node)) {
        node = node.expression;
    }
    return node;
}
ts.skipAssertions = skipAssertions;
function skipPartiallyEmittedExpressions(node) {
    while (node.kind === 294) {
        node = node.expression;
    }
    return node;
}
ts.skipPartiallyEmittedExpressions = skipPartiallyEmittedExpressions;
function startOnNewLine(node) {
    node.startsOnNewLine = true;
    return node;
}
ts.startOnNewLine = startOnNewLine;
function setOriginalNode(node, original) {
    node.original = original;
    if (original) {
        var emitNode = original.emitNode;
        if (emitNode)
            node.emitNode = mergeEmitNode(emitNode, node.emitNode);
    }
    return node;
}
ts.setOriginalNode = setOriginalNode;
function mergeEmitNode(sourceEmitNode, destEmitNode) {
    var flags = sourceEmitNode.flags, commentRange = sourceEmitNode.commentRange, sourceMapRange = sourceEmitNode.sourceMapRange, tokenSourceMapRanges = sourceEmitNode.tokenSourceMapRanges, constantValue = sourceEmitNode.constantValue, helpers = sourceEmitNode.helpers;
    if (!destEmitNode)
        destEmitNode = {};
    if (flags)
        destEmitNode.flags = flags;
    if (commentRange)
        destEmitNode.commentRange = commentRange;
    if (sourceMapRange)
        destEmitNode.sourceMapRange = sourceMapRange;
    if (tokenSourceMapRanges)
        destEmitNode.tokenSourceMapRanges = mergeTokenSourceMapRanges(tokenSourceMapRanges, destEmitNode.tokenSourceMapRanges);
    if (constantValue !== undefined)
        destEmitNode.constantValue = constantValue;
    if (helpers)
        destEmitNode.helpers = ts.addRange(destEmitNode.helpers, helpers);
    return destEmitNode;
}
function mergeTokenSourceMapRanges(sourceRanges, destRanges) {
    if (!destRanges)
        destRanges = ts.createMap();
    ts.copyProperties(sourceRanges, destRanges);
    return destRanges;
}
function disposeEmitNodes(sourceFile) {
    sourceFile = ts.getSourceFileOfNode(ts.getParseTreeNode(sourceFile));
    var emitNode = sourceFile && sourceFile.emitNode;
    var annotatedNodes = emitNode && emitNode.annotatedNodes;
    if (annotatedNodes) {
        for (var _i = 0, annotatedNodes_1 = annotatedNodes; _i < annotatedNodes_1.length; _i++) {
            var node = annotatedNodes_1[_i];
            node.emitNode = undefined;
        }
    }
}
ts.disposeEmitNodes = disposeEmitNodes;
function getOrCreateEmitNode(node) {
    if (!node.emitNode) {
        if (ts.isParseTreeNode(node)) {
            if (node.kind === 261) {
                return node.emitNode = { annotatedNodes: [node] };
            }
            var sourceFile = ts.getSourceFileOfNode(node);
            getOrCreateEmitNode(sourceFile).annotatedNodes.push(node);
        }
        node.emitNode = {};
    }
    return node.emitNode;
}
ts.getOrCreateEmitNode = getOrCreateEmitNode;
function getEmitFlags(node) {
    var emitNode = node.emitNode;
    return emitNode && emitNode.flags;
}
ts.getEmitFlags = getEmitFlags;
function setEmitFlags(node, emitFlags) {
    getOrCreateEmitNode(node).flags = emitFlags;
    return node;
}
ts.setEmitFlags = setEmitFlags;
function getSourceMapRange(node) {
    var emitNode = node.emitNode;
    return (emitNode && emitNode.sourceMapRange) || node;
}
ts.getSourceMapRange = getSourceMapRange;
function setSourceMapRange(node, range) {
    getOrCreateEmitNode(node).sourceMapRange = range;
    return node;
}
ts.setSourceMapRange = setSourceMapRange;
function getTokenSourceMapRange(node, token) {
    var emitNode = node.emitNode;
    var tokenSourceMapRanges = emitNode && emitNode.tokenSourceMapRanges;
    return tokenSourceMapRanges && tokenSourceMapRanges[token];
}
ts.getTokenSourceMapRange = getTokenSourceMapRange;
function setTokenSourceMapRange(node, token, range) {
    var emitNode = getOrCreateEmitNode(node);
    var tokenSourceMapRanges = emitNode.tokenSourceMapRanges || (emitNode.tokenSourceMapRanges = ts.createMap());
    tokenSourceMapRanges[token] = range;
    return node;
}
ts.setTokenSourceMapRange = setTokenSourceMapRange;
function getCommentRange(node) {
    var emitNode = node.emitNode;
    return (emitNode && emitNode.commentRange) || node;
}
ts.getCommentRange = getCommentRange;
function setCommentRange(node, range) {
    getOrCreateEmitNode(node).commentRange = range;
    return node;
}
ts.setCommentRange = setCommentRange;
function getConstantValue(node) {
    var emitNode = node.emitNode;
    return emitNode && emitNode.constantValue;
}
ts.getConstantValue = getConstantValue;
function setConstantValue(node, value) {
    var emitNode = getOrCreateEmitNode(node);
    emitNode.constantValue = value;
    return node;
}
ts.setConstantValue = setConstantValue;
function getExternalHelpersModuleName(node) {
    var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
    var emitNode = parseNode && parseNode.emitNode;
    return emitNode && emitNode.externalHelpersModuleName;
}
ts.getExternalHelpersModuleName = getExternalHelpersModuleName;
function getOrCreateExternalHelpersModuleNameIfNeeded(node, compilerOptions) {
    if (compilerOptions.importHelpers && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
        var externalHelpersModuleName = getExternalHelpersModuleName(node);
        if (externalHelpersModuleName) {
            return externalHelpersModuleName;
        }
        var helpers = getEmitHelpers(node);
        if (helpers) {
            for (var _i = 0, helpers_1 = helpers; _i < helpers_1.length; _i++) {
                var helper = helpers_1[_i];
                if (!helper.scoped) {
                    var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
                    var emitNode = getOrCreateEmitNode(parseNode);
                    return emitNode.externalHelpersModuleName || (emitNode.externalHelpersModuleName = createUniqueName(ts.externalHelpersModuleNameText));
                }
            }
        }
    }
}
ts.getOrCreateExternalHelpersModuleNameIfNeeded = getOrCreateExternalHelpersModuleNameIfNeeded;
function addEmitHelper(node, helper) {
    var emitNode = getOrCreateEmitNode(node);
    emitNode.helpers = ts.append(emitNode.helpers, helper);
    return node;
}
ts.addEmitHelper = addEmitHelper;
function addEmitHelpers(node, helpers) {
    if (ts.some(helpers)) {
        var emitNode = getOrCreateEmitNode(node);
        for (var _i = 0, helpers_2 = helpers; _i < helpers_2.length; _i++) {
            var helper = helpers_2[_i];
            if (!ts.contains(emitNode.helpers, helper)) {
                emitNode.helpers = ts.append(emitNode.helpers, helper);
            }
        }
    }
    return node;
}
ts.addEmitHelpers = addEmitHelpers;
function removeEmitHelper(node, helper) {
    var emitNode = node.emitNode;
    if (emitNode) {
        var helpers = emitNode.helpers;
        if (helpers) {
            return ts.orderedRemoveItem(helpers, helper);
        }
    }
    return false;
}
ts.removeEmitHelper = removeEmitHelper;
function getEmitHelpers(node) {
    var emitNode = node.emitNode;
    return emitNode && emitNode.helpers;
}
ts.getEmitHelpers = getEmitHelpers;
function moveEmitHelpers(source, target, predicate) {
    var sourceEmitNode = source.emitNode;
    var sourceEmitHelpers = sourceEmitNode && sourceEmitNode.helpers;
    if (!ts.some(sourceEmitHelpers))
        return;
    var targetEmitNode = getOrCreateEmitNode(target);
    var helpersRemoved = 0;
    for (var i = 0; i < sourceEmitHelpers.length; i++) {
        var helper = sourceEmitHelpers[i];
        if (predicate(helper)) {
            helpersRemoved++;
            if (!ts.contains(targetEmitNode.helpers, helper)) {
                targetEmitNode.helpers = ts.append(targetEmitNode.helpers, helper);
            }
        }
        else if (helpersRemoved > 0) {
            sourceEmitHelpers[i - helpersRemoved] = helper;
        }
    }
    if (helpersRemoved > 0) {
        sourceEmitHelpers.length -= helpersRemoved;
    }
}
ts.moveEmitHelpers = moveEmitHelpers;
function compareEmitHelpers(x, y) {
    if (x === y)
        return 0;
    if (x.priority === y.priority)
        return 0;
    if (x.priority === undefined)
        return 1;
    if (y.priority === undefined)
        return -1;
    return ts.compareValues(x.priority, y.priority);
}
ts.compareEmitHelpers = compareEmitHelpers;
function setTextRange(node, location) {
    if (location) {
        node.pos = location.pos;
        node.end = location.end;
    }
    return node;
}
ts.setTextRange = setTextRange;
function setNodeFlags(node, flags) {
    node.flags = flags;
    return node;
}
ts.setNodeFlags = setNodeFlags;
function setMultiLine(node, multiLine) {
    node.multiLine = multiLine;
    return node;
}
ts.setMultiLine = setMultiLine;
function setHasTrailingComma(nodes, hasTrailingComma) {
    nodes.hasTrailingComma = hasTrailingComma;
    return nodes;
}
ts.setHasTrailingComma = setHasTrailingComma;
function getLocalNameForExternalImport(node, sourceFile) {
    var namespaceDeclaration = ts.getNamespaceDeclarationNode(node);
    if (namespaceDeclaration && !ts.isDefaultImport(node)) {
        var name_9 = namespaceDeclaration.name;
        return ts.isGeneratedIdentifier(name_9) ? name_9 : createIdentifier(ts.getSourceTextOfNodeFromSourceFile(sourceFile, namespaceDeclaration.name));
    }
    if (node.kind === 235 && node.importClause) {
        return getGeneratedNameForNode(node);
    }
    if (node.kind === 241 && node.moduleSpecifier) {
        return getGeneratedNameForNode(node);
    }
    return undefined;
}
ts.getLocalNameForExternalImport = getLocalNameForExternalImport;
function getExternalModuleNameLiteral(importNode, sourceFile, host, resolver, compilerOptions) {
    var moduleName = ts.getExternalModuleName(importNode);
    if (moduleName.kind === 9) {
        return tryGetModuleNameFromDeclaration(importNode, host, resolver, compilerOptions)
            || tryRenameExternalModule(moduleName, sourceFile)
            || getSynthesizedClone(moduleName);
    }
    return undefined;
}
ts.getExternalModuleNameLiteral = getExternalModuleNameLiteral;
function tryRenameExternalModule(moduleName, sourceFile) {
    if (sourceFile.renamedDependencies && ts.hasProperty(sourceFile.renamedDependencies, moduleName.text)) {
        return createLiteral(sourceFile.renamedDependencies[moduleName.text]);
    }
    return undefined;
}
function tryGetModuleNameFromFile(file, host, options) {
    if (!file) {
        return undefined;
    }
    if (file.moduleName) {
        return createLiteral(file.moduleName);
    }
    if (!ts.isDeclarationFile(file) && (options.out || options.outFile)) {
        return createLiteral(ts.getExternalModuleNameFromPath(host, file.fileName));
    }
    return undefined;
}
ts.tryGetModuleNameFromFile = tryGetModuleNameFromFile;
function tryGetModuleNameFromDeclaration(declaration, host, resolver, compilerOptions) {
    return tryGetModuleNameFromFile(resolver.getExternalModuleFileFromDeclaration(declaration), host, compilerOptions);
}
function getInitializerOfBindingOrAssignmentElement(bindingElement) {
    if (ts.isDeclarationBindingElement(bindingElement)) {
        return bindingElement.initializer;
    }
    if (ts.isPropertyAssignment(bindingElement)) {
        return ts.isAssignmentExpression(bindingElement.initializer, true)
            ? bindingElement.initializer.right
            : undefined;
    }
    if (ts.isShorthandPropertyAssignment(bindingElement)) {
        return bindingElement.objectAssignmentInitializer;
    }
    if (ts.isAssignmentExpression(bindingElement, true)) {
        return bindingElement.right;
    }
    if (ts.isSpreadExpression(bindingElement)) {
        return getInitializerOfBindingOrAssignmentElement(bindingElement.expression);
    }
}
ts.getInitializerOfBindingOrAssignmentElement = getInitializerOfBindingOrAssignmentElement;
function getTargetOfBindingOrAssignmentElement(bindingElement) {
    if (ts.isDeclarationBindingElement(bindingElement)) {
        return bindingElement.name;
    }
    if (ts.isObjectLiteralElementLike(bindingElement)) {
        switch (bindingElement.kind) {
            case 257:
                return getTargetOfBindingOrAssignmentElement(bindingElement.initializer);
            case 258:
                return bindingElement.name;
            case 259:
                return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
        }
        return undefined;
    }
    if (ts.isAssignmentExpression(bindingElement, true)) {
        return getTargetOfBindingOrAssignmentElement(bindingElement.left);
    }
    if (ts.isSpreadExpression(bindingElement)) {
        return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
    }
    return bindingElement;
}
ts.getTargetOfBindingOrAssignmentElement = getTargetOfBindingOrAssignmentElement;
function getRestIndicatorOfBindingOrAssignmentElement(bindingElement) {
    switch (bindingElement.kind) {
        case 144:
        case 174:
            return bindingElement.dotDotDotToken;
        case 196:
        case 259:
            return bindingElement;
    }
    return undefined;
}
ts.getRestIndicatorOfBindingOrAssignmentElement = getRestIndicatorOfBindingOrAssignmentElement;
function getPropertyNameOfBindingOrAssignmentElement(bindingElement) {
    switch (bindingElement.kind) {
        case 174:
            if (bindingElement.propertyName) {
                var propertyName = bindingElement.propertyName;
                return ts.isComputedPropertyName(propertyName) && ts.isStringOrNumericLiteral(propertyName.expression)
                    ? propertyName.expression
                    : propertyName;
            }
            break;
        case 257:
            if (bindingElement.name) {
                var propertyName = bindingElement.name;
                return ts.isComputedPropertyName(propertyName) && ts.isStringOrNumericLiteral(propertyName.expression)
                    ? propertyName.expression
                    : propertyName;
            }
            break;
        case 259:
            return bindingElement.name;
    }
    var target = getTargetOfBindingOrAssignmentElement(bindingElement);
    if (target && ts.isPropertyName(target)) {
        return ts.isComputedPropertyName(target) && ts.isStringOrNumericLiteral(target.expression)
            ? target.expression
            : target;
    }
    ts.Debug.fail("Invalid property name for binding element.");
}
ts.getPropertyNameOfBindingOrAssignmentElement = getPropertyNameOfBindingOrAssignmentElement;
function getElementsOfBindingOrAssignmentPattern(name) {
    switch (name.kind) {
        case 172:
        case 173:
        case 175:
            return name.elements;
        case 176:
            return name.properties;
    }
}
ts.getElementsOfBindingOrAssignmentPattern = getElementsOfBindingOrAssignmentPattern;
function convertToArrayAssignmentElement(element) {
    if (ts.isBindingElement(element)) {
        if (element.dotDotDotToken) {
            ts.Debug.assertNode(element.name, ts.isIdentifier);
            return setOriginalNode(createSpread(element.name, element), element);
        }
        var expression = convertToAssignmentElementTarget(element.name);
        return element.initializer ? setOriginalNode(createAssignment(expression, element.initializer, element), element) : expression;
    }
    ts.Debug.assertNode(element, ts.isExpression);
    return element;
}
ts.convertToArrayAssignmentElement = convertToArrayAssignmentElement;
function convertToObjectAssignmentElement(element) {
    if (ts.isBindingElement(element)) {
        if (element.dotDotDotToken) {
            ts.Debug.assertNode(element.name, ts.isIdentifier);
            return setOriginalNode(createSpreadAssignment(element.name, element), element);
        }
        if (element.propertyName) {
            var expression = convertToAssignmentElementTarget(element.name);
            return setOriginalNode(createPropertyAssignment(element.propertyName, element.initializer ? createAssignment(expression, element.initializer) : expression, element), element);
        }
        ts.Debug.assertNode(element.name, ts.isIdentifier);
        return setOriginalNode(createShorthandPropertyAssignment(element.name, element.initializer, element), element);
    }
    ts.Debug.assertNode(element, ts.isObjectLiteralElementLike);
    return element;
}
ts.convertToObjectAssignmentElement = convertToObjectAssignmentElement;
function convertToAssignmentPattern(node) {
    switch (node.kind) {
        case 173:
        case 175:
            return convertToArrayAssignmentPattern(node);
        case 172:
        case 176:
            return convertToObjectAssignmentPattern(node);
    }
}
ts.convertToAssignmentPattern = convertToAssignmentPattern;
function convertToObjectAssignmentPattern(node) {
    if (ts.isObjectBindingPattern(node)) {
        return setOriginalNode(createObjectLiteral(ts.map(node.elements, convertToObjectAssignmentElement), node), node);
    }
    ts.Debug.assertNode(node, ts.isObjectLiteralExpression);
    return node;
}
ts.convertToObjectAssignmentPattern = convertToObjectAssignmentPattern;
function convertToArrayAssignmentPattern(node) {
    if (ts.isArrayBindingPattern(node)) {
        return setOriginalNode(createArrayLiteral(ts.map(node.elements, convertToArrayAssignmentElement), node), node);
    }
    ts.Debug.assertNode(node, ts.isArrayLiteralExpression);
    return node;
}
ts.convertToArrayAssignmentPattern = convertToArrayAssignmentPattern;
function convertToAssignmentElementTarget(node) {
    if (ts.isBindingPattern(node)) {
        return convertToAssignmentPattern(node);
    }
    ts.Debug.assertNode(node, ts.isExpression);
    return node;
}
ts.convertToAssignmentElementTarget = convertToAssignmentElementTarget;
function collectExternalModuleInfo(sourceFile, resolver, compilerOptions) {
    var externalImports = [];
    var exportSpecifiers = ts.createMap();
    var exportedBindings = ts.createMap();
    var uniqueExports = ts.createMap();
    var exportedNames;
    var hasExportDefault = false;
    var exportEquals = undefined;
    var hasExportStarsToExportValues = false;
    var externalHelpersModuleName = getOrCreateExternalHelpersModuleNameIfNeeded(sourceFile, compilerOptions);
    var externalHelpersImportDeclaration = externalHelpersModuleName && createImportDeclaration(undefined, undefined, createImportClause(undefined, createNamespaceImport(externalHelpersModuleName)), createLiteral(ts.externalHelpersModuleNameText));
    if (externalHelpersImportDeclaration) {
        externalImports.push(externalHelpersImportDeclaration);
    }
    for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
        var node = _a[_i];
        switch (node.kind) {
            case 235:
                externalImports.push(node);
                break;
            case 234:
                if (node.moduleReference.kind === 245) {
                    externalImports.push(node);
                }
                break;
            case 241:
                if (node.moduleSpecifier) {
                    if (!node.exportClause) {
                        externalImports.push(node);
                        hasExportStarsToExportValues = true;
                    }
                    else {
                        externalImports.push(node);
                    }
                }
                else {
                    for (var _b = 0, _c = node.exportClause.elements; _b < _c.length; _b++) {
                        var specifier = _c[_b];
                        if (!uniqueExports[specifier.name.text]) {
                            var name_10 = specifier.propertyName || specifier.name;
                            ts.multiMapAdd(exportSpecifiers, name_10.text, specifier);
                            var decl = resolver.getReferencedImportDeclaration(name_10)
                                || resolver.getReferencedValueDeclaration(name_10);
                            if (decl) {
                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(decl), specifier.name);
                            }
                            uniqueExports[specifier.name.text] = true;
                            exportedNames = ts.append(exportedNames, specifier.name);
                        }
                    }
                }
                break;
            case 240:
                if (node.isExportEquals && !exportEquals) {
                    exportEquals = node;
                }
                break;
            case 205:
                if (ts.hasModifier(node, 1)) {
                    for (var _d = 0, _e = node.declarationList.declarations; _d < _e.length; _d++) {
                        var decl = _e[_d];
                        exportedNames = collectExportedVariableInfo(decl, uniqueExports, exportedNames);
                    }
                }
                break;
            case 225:
                if (ts.hasModifier(node, 1)) {
                    if (ts.hasModifier(node, 512)) {
                        if (!hasExportDefault) {
                            ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), getDeclarationName(node));
                            hasExportDefault = true;
                        }
                    }
                    else {
                        var name_11 = node.name;
                        if (!uniqueExports[name_11.text]) {
                            ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), name_11);
                            uniqueExports[name_11.text] = true;
                            exportedNames = ts.append(exportedNames, name_11);
                        }
                    }
                }
                break;
            case 226:
                if (ts.hasModifier(node, 1)) {
                    if (ts.hasModifier(node, 512)) {
                        if (!hasExportDefault) {
                            ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), getDeclarationName(node));
                            hasExportDefault = true;
                        }
                    }
                    else {
                        var name_12 = node.name;
                        if (!uniqueExports[name_12.text]) {
                            ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), name_12);
                            uniqueExports[name_12.text] = true;
                            exportedNames = ts.append(exportedNames, name_12);
                        }
                    }
                }
                break;
        }
    }
    return { externalImports: externalImports, exportSpecifiers: exportSpecifiers, exportEquals: exportEquals, hasExportStarsToExportValues: hasExportStarsToExportValues, exportedBindings: exportedBindings, exportedNames: exportedNames, externalHelpersImportDeclaration: externalHelpersImportDeclaration };
}
ts.collectExternalModuleInfo = collectExternalModuleInfo;
function collectExportedVariableInfo(decl, uniqueExports, exportedNames) {
    if (ts.isBindingPattern(decl.name)) {
        for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
            var element = _a[_i];
            if (!ts.isOmittedExpression(element)) {
                exportedNames = collectExportedVariableInfo(element, uniqueExports, exportedNames);
            }
        }
    }
    else if (!ts.isGeneratedIdentifier(decl.name)) {
        if (!uniqueExports[decl.name.text]) {
            uniqueExports[decl.name.text] = true;
            exportedNames = ts.append(exportedNames, decl.name);
        }
    }
    return exportedNames;
}

})(ts || (ts = {})); var ts; (function (ts) {

var NodeConstructor;
var TokenConstructor;
var IdentifierConstructor;
var SourceFileConstructor;
function createNode(kind, pos, end) {
    if (kind === 261) {
        return new (SourceFileConstructor || (SourceFileConstructor = ts.objectAllocator.getSourceFileConstructor()))(kind, pos, end);
    }
    else if (kind === 70) {
        return new (IdentifierConstructor || (IdentifierConstructor = ts.objectAllocator.getIdentifierConstructor()))(kind, pos, end);
    }
    else if (kind < 141) {
        return new (TokenConstructor || (TokenConstructor = ts.objectAllocator.getTokenConstructor()))(kind, pos, end);
    }
    else {
        return new (NodeConstructor || (NodeConstructor = ts.objectAllocator.getNodeConstructor()))(kind, pos, end);
    }
}
ts.createNode = createNode;
function visitNode(cbNode, node) {
    if (node) {
        return cbNode(node);
    }
}
function visitNodeArray(cbNodes, nodes) {
    if (nodes) {
        return cbNodes(nodes);
    }
}
function visitEachNode(cbNode, nodes) {
    if (nodes) {
        for (var _i = 0, nodes_1 = nodes; _i < nodes_1.length; _i++) {
            var node = nodes_1[_i];
            var result = cbNode(node);
            if (result) {
                return result;
            }
        }
    }
}
function forEachChild(node, cbNode, cbNodeArray) {
    if (!node) {
        return;
    }
    var visitNodes = cbNodeArray ? visitNodeArray : visitEachNode;
    var cbNodes = cbNodeArray || cbNode;
    switch (node.kind) {
        case 141:
            return visitNode(cbNode, node.left) ||
                visitNode(cbNode, node.right);
        case 143:
            return visitNode(cbNode, node.name) ||
                visitNode(cbNode, node.constraint) ||
                visitNode(cbNode, node.expression);
        case 258:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNode(cbNode, node.name) ||
                visitNode(cbNode, node.questionToken) ||
                visitNode(cbNode, node.equalsToken) ||
                visitNode(cbNode, node.objectAssignmentInitializer);
        case 259:
            return visitNode(cbNode, node.expression);
        case 144:
        case 147:
        case 146:
        case 257:
        case 223:
        case 174:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNode(cbNode, node.propertyName) ||
                visitNode(cbNode, node.dotDotDotToken) ||
                visitNode(cbNode, node.name) ||
                visitNode(cbNode, node.questionToken) ||
                visitNode(cbNode, node.type) ||
                visitNode(cbNode, node.initializer);
        case 158:
        case 159:
        case 153:
        case 154:
        case 155:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNodes(cbNodes, node.typeParameters) ||
                visitNodes(cbNodes, node.parameters) ||
                visitNode(cbNode, node.type);
        case 149:
        case 148:
        case 150:
        case 151:
        case 152:
        case 184:
        case 225:
        case 185:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNode(cbNode, node.asteriskToken) ||
                visitNode(cbNode, node.name) ||
                visitNode(cbNode, node.questionToken) ||
                visitNodes(cbNodes, node.typeParameters) ||
                visitNodes(cbNodes, node.parameters) ||
                visitNode(cbNode, node.type) ||
                visitNode(cbNode, node.equalsGreaterThanToken) ||
                visitNode(cbNode, node.body);
        case 157:
            return visitNode(cbNode, node.typeName) ||
                visitNodes(cbNodes, node.typeArguments);
        case 156:
            return visitNode(cbNode, node.parameterName) ||
                visitNode(cbNode, node.type);
        case 160:
            return visitNode(cbNode, node.exprName);
        case 161:
            return visitNodes(cbNodes, node.members);
        case 162:
            return visitNode(cbNode, node.elementType);
        case 163:
            return visitNodes(cbNodes, node.elementTypes);
        case 164:
        case 165:
            return visitNodes(cbNodes, node.types);
        case 166:
        case 168:
            return visitNode(cbNode, node.type);
        case 169:
            return visitNode(cbNode, node.objectType) ||
                visitNode(cbNode, node.indexType);
        case 170:
            return visitNode(cbNode, node.readonlyToken) ||
                visitNode(cbNode, node.typeParameter) ||
                visitNode(cbNode, node.questionToken) ||
                visitNode(cbNode, node.type);
        case 171:
            return visitNode(cbNode, node.literal);
        case 172:
        case 173:
            return visitNodes(cbNodes, node.elements);
        case 175:
            return visitNodes(cbNodes, node.elements);
        case 176:
            return visitNodes(cbNodes, node.properties);
        case 177:
            return visitNode(cbNode, node.expression) ||
                visitNode(cbNode, node.name);
        case 178:
            return visitNode(cbNode, node.expression) ||
                visitNode(cbNode, node.argumentExpression);
        case 179:
        case 180:
            return visitNode(cbNode, node.expression) ||
                visitNodes(cbNodes, node.typeArguments) ||
                visitNodes(cbNodes, node.arguments);
        case 181:
            return visitNode(cbNode, node.tag) ||
                visitNode(cbNode, node.template);
        case 182:
            return visitNode(cbNode, node.type) ||
                visitNode(cbNode, node.expression);
        case 183:
            return visitNode(cbNode, node.expression);
        case 186:
            return visitNode(cbNode, node.expression);
        case 187:
            return visitNode(cbNode, node.expression);
        case 188:
            return visitNode(cbNode, node.expression);
        case 190:
            return visitNode(cbNode, node.operand);
        case 195:
            return visitNode(cbNode, node.asteriskToken) ||
                visitNode(cbNode, node.expression);
        case 189:
            return visitNode(cbNode, node.expression);
        case 191:
            return visitNode(cbNode, node.operand);
        case 192:
            return visitNode(cbNode, node.left) ||
                visitNode(cbNode, node.operatorToken) ||
                visitNode(cbNode, node.right);
        case 200:
            return visitNode(cbNode, node.expression) ||
                visitNode(cbNode, node.type);
        case 201:
            return visitNode(cbNode, node.expression);
        case 193:
            return visitNode(cbNode, node.condition) ||
                visitNode(cbNode, node.questionToken) ||
                visitNode(cbNode, node.whenTrue) ||
                visitNode(cbNode, node.colonToken) ||
                visitNode(cbNode, node.whenFalse);
        case 196:
            return visitNode(cbNode, node.expression);
        case 204:
        case 231:
            return visitNodes(cbNodes, node.statements);
        case 261:
            return visitNodes(cbNodes, node.statements) ||
                visitNode(cbNode, node.endOfFileToken);
        case 205:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNode(cbNode, node.declarationList);
        case 224:
            return visitNodes(cbNodes, node.declarations);
        case 207:
            return visitNode(cbNode, node.expression);
        case 208:
            return visitNode(cbNode, node.expression) ||
                visitNode(cbNode, node.thenStatement) ||
                visitNode(cbNode, node.elseStatement);
        case 209:
            return visitNode(cbNode, node.statement) ||
                visitNode(cbNode, node.expression);
        case 210:
            return visitNode(cbNode, node.expression) ||
                visitNode(cbNode, node.statement);
        case 211:
            return visitNode(cbNode, node.initializer) ||
                visitNode(cbNode, node.condition) ||
                visitNode(cbNode, node.incrementor) ||
                visitNode(cbNode, node.statement);
        case 212:
            return visitNode(cbNode, node.initializer) ||
                visitNode(cbNode, node.expression) ||
                visitNode(cbNode, node.statement);
        case 213:
            return visitNode(cbNode, node.initializer) ||
                visitNode(cbNode, node.expression) ||
                visitNode(cbNode, node.statement);
        case 214:
        case 215:
            return visitNode(cbNode, node.label);
        case 216:
            return visitNode(cbNode, node.expression);
        case 217:
            return visitNode(cbNode, node.expression) ||
                visitNode(cbNode, node.statement);
        case 218:
            return visitNode(cbNode, node.expression) ||
                visitNode(cbNode, node.caseBlock);
        case 232:
            return visitNodes(cbNodes, node.clauses);
        case 253:
            return visitNode(cbNode, node.expression) ||
                visitNodes(cbNodes, node.statements);
        case 254:
            return visitNodes(cbNodes, node.statements);
        case 219:
            return visitNode(cbNode, node.label) ||
                visitNode(cbNode, node.statement);
        case 220:
            return visitNode(cbNode, node.expression);
        case 221:
            return visitNode(cbNode, node.tryBlock) ||
                visitNode(cbNode, node.catchClause) ||
                visitNode(cbNode, node.finallyBlock);
        case 256:
            return visitNode(cbNode, node.variableDeclaration) ||
                visitNode(cbNode, node.block);
        case 145:
            return visitNode(cbNode, node.expression);
        case 226:
        case 197:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNode(cbNode, node.name) ||
                visitNodes(cbNodes, node.typeParameters) ||
                visitNodes(cbNodes, node.heritageClauses) ||
                visitNodes(cbNodes, node.members);
        case 227:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNode(cbNode, node.name) ||
                visitNodes(cbNodes, node.typeParameters) ||
                visitNodes(cbNodes, node.heritageClauses) ||
                visitNodes(cbNodes, node.members);
        case 228:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNode(cbNode, node.name) ||
                visitNodes(cbNodes, node.typeParameters) ||
                visitNode(cbNode, node.type);
        case 229:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNode(cbNode, node.name) ||
                visitNodes(cbNodes, node.members);
        case 260:
            return visitNode(cbNode, node.name) ||
                visitNode(cbNode, node.initializer);
        case 230:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNode(cbNode, node.name) ||
                visitNode(cbNode, node.body);
        case 234:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNode(cbNode, node.name) ||
                visitNode(cbNode, node.moduleReference);
        case 235:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNode(cbNode, node.importClause) ||
                visitNode(cbNode, node.moduleSpecifier);
        case 236:
            return visitNode(cbNode, node.name) ||
                visitNode(cbNode, node.namedBindings);
        case 233:
            return visitNode(cbNode, node.name);
        case 237:
            return visitNode(cbNode, node.name);
        case 238:
        case 242:
            return visitNodes(cbNodes, node.elements);
        case 241:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNode(cbNode, node.exportClause) ||
                visitNode(cbNode, node.moduleSpecifier);
        case 239:
        case 243:
            return visitNode(cbNode, node.propertyName) ||
                visitNode(cbNode, node.name);
        case 240:
            return visitNodes(cbNodes, node.decorators) ||
                visitNodes(cbNodes, node.modifiers) ||
                visitNode(cbNode, node.expression);
        case 194:
            return visitNode(cbNode, node.head) || visitNodes(cbNodes, node.templateSpans);
        case 202:
            return visitNode(cbNode, node.expression) || visitNode(cbNode, node.literal);
        case 142:
            return visitNode(cbNode, node.expression);
        case 255:
            return visitNodes(cbNodes, node.types);
        case 199:
            return visitNode(cbNode, node.expression) ||
                visitNodes(cbNodes, node.typeArguments);
        case 245:
            return visitNode(cbNode, node.expression);
        case 244:
            return visitNodes(cbNodes, node.decorators);
        case 246:
            return visitNode(cbNode, node.openingElement) ||
                visitNodes(cbNodes, node.children) ||
                visitNode(cbNode, node.closingElement);
        case 247:
        case 248:
            return visitNode(cbNode, node.tagName) ||
                visitNodes(cbNodes, node.attributes);
        case 250:
            return visitNode(cbNode, node.name) ||
                visitNode(cbNode, node.initializer);
        case 251:
            return visitNode(cbNode, node.expression);
        case 252:
            return visitNode(cbNode, node.expression);
        case 249:
            return visitNode(cbNode, node.tagName);
        case 262:
            return visitNode(cbNode, node.type);
        case 266:
            return visitNodes(cbNodes, node.types);
        case 267:
            return visitNodes(cbNodes, node.types);
        case 265:
            return visitNode(cbNode, node.elementType);
        case 269:
            return visitNode(cbNode, node.type);
        case 268:
            return visitNode(cbNode, node.type);
        case 270:
            return visitNode(cbNode, node.literal);
        case 272:
            return visitNode(cbNode, node.name) ||
                visitNodes(cbNodes, node.typeArguments);
        case 273:
            return visitNode(cbNode, node.type);
        case 274:
            return visitNodes(cbNodes, node.parameters) ||
                visitNode(cbNode, node.type);
        case 275:
            return visitNode(cbNode, node.type);
        case 276:
            return visitNode(cbNode, node.type);
        case 277:
            return visitNode(cbNode, node.type);
        case 271:
            return visitNode(cbNode, node.name) ||
                visitNode(cbNode, node.type);
        case 278:
            return visitNodes(cbNodes, node.tags);
        case 281:
            return visitNode(cbNode, node.preParameterName) ||
                visitNode(cbNode, node.typeExpression) ||
                visitNode(cbNode, node.postParameterName);
        case 282:
            return visitNode(cbNode, node.typeExpression);
        case 283:
            return visitNode(cbNode, node.typeExpression);
        case 280:
            return visitNode(cbNode, node.typeExpression);
        case 284:
            return visitNodes(cbNodes, node.typeParameters);
        case 285:
            return visitNode(cbNode, node.typeExpression) ||
                visitNode(cbNode, node.fullName) ||
                visitNode(cbNode, node.name) ||
                visitNode(cbNode, node.jsDocTypeLiteral);
        case 287:
            return visitNodes(cbNodes, node.jsDocPropertyTags);
        case 286:
            return visitNode(cbNode, node.typeExpression) ||
                visitNode(cbNode, node.name);
        case 294:
            return visitNode(cbNode, node.expression);
        case 288:
            return visitNode(cbNode, node.literal);
    }
}
ts.forEachChild = forEachChild;
function createSourceFile(fileName, sourceText, languageVersion, setParentNodes, scriptKind) {
    if (setParentNodes === void 0) { setParentNodes = false; }
    ts.performance.mark("beforeParse");
    var result = Parser.parseSourceFile(fileName, sourceText, languageVersion, undefined, setParentNodes, scriptKind);
    ts.performance.mark("afterParse");
    ts.performance.measure("Parse", "beforeParse", "afterParse");
    return result;
}
ts.createSourceFile = createSourceFile;
function parseIsolatedEntityName(text, languageVersion) {
    return Parser.parseIsolatedEntityName(text, languageVersion);
}
ts.parseIsolatedEntityName = parseIsolatedEntityName;
function isExternalModule(file) {
    return file.externalModuleIndicator !== undefined;
}
ts.isExternalModule = isExternalModule;
function updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks) {
    return IncrementalParser.updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks);
}
ts.updateSourceFile = updateSourceFile;
function parseIsolatedJSDocComment(content, start, length) {
    var result = Parser.JSDocParser.parseIsolatedJSDocComment(content, start, length);
    if (result && result.jsDoc) {
        Parser.fixupParentReferences(result.jsDoc);
    }
    return result;
}
ts.parseIsolatedJSDocComment = parseIsolatedJSDocComment;
function parseJSDocTypeExpressionForTests(content, start, length) {
    return Parser.JSDocParser.parseJSDocTypeExpressionForTests(content, start, length);
}
ts.parseJSDocTypeExpressionForTests = parseJSDocTypeExpressionForTests;
var Parser;
(function (Parser) {
    var scanner = ts.createScanner(5, true);
    var disallowInAndDecoratorContext = 2048 | 8192;
    var NodeConstructor;
    var TokenConstructor;
    var IdentifierConstructor;
    var SourceFileConstructor;
    var sourceFile;
    var parseDiagnostics;
    var syntaxCursor;
    var currentToken;
    var sourceText;
    var nodeCount;
    var identifiers;
    var identifierCount;
    var parsingContext;
    var contextFlags;
    var parseErrorBeforeNextFinishedNode = false;
    function parseSourceFile(fileName, sourceText, languageVersion, syntaxCursor, setParentNodes, scriptKind) {
        scriptKind = ts.ensureScriptKind(fileName, scriptKind);
        initializeState(sourceText, languageVersion, syntaxCursor, scriptKind);
        var result = parseSourceFileWorker(fileName, languageVersion, setParentNodes, scriptKind);
        clearState();
        return result;
    }
    Parser.parseSourceFile = parseSourceFile;
    function parseIsolatedEntityName(content, languageVersion) {
        initializeState(content, languageVersion, undefined, 1);
        nextToken();
        var entityName = parseEntityName(true);
        var isInvalid = token() === 1 && !parseDiagnostics.length;
        clearState();
        return isInvalid ? entityName : undefined;
    }
    Parser.parseIsolatedEntityName = parseIsolatedEntityName;
    function getLanguageVariant(scriptKind) {
        return scriptKind === 4 || scriptKind === 2 || scriptKind === 1 ? 1 : 0;
    }
    function initializeState(_sourceText, languageVersion, _syntaxCursor, scriptKind) {
        NodeConstructor = ts.objectAllocator.getNodeConstructor();
        TokenConstructor = ts.objectAllocator.getTokenConstructor();
        IdentifierConstructor = ts.objectAllocator.getIdentifierConstructor();
        SourceFileConstructor = ts.objectAllocator.getSourceFileConstructor();
        sourceText = _sourceText;
        syntaxCursor = _syntaxCursor;
        parseDiagnostics = [];
        parsingContext = 0;
        identifiers = ts.createMap();
        identifierCount = 0;
        nodeCount = 0;
        contextFlags = scriptKind === 1 || scriptKind === 2 ? 65536 : 0;
        parseErrorBeforeNextFinishedNode = false;
        scanner.setText(sourceText);
        scanner.setOnError(scanError);
        scanner.setScriptTarget(languageVersion);
        scanner.setLanguageVariant(getLanguageVariant(scriptKind));
    }
    function clearState() {
        scanner.setText("");
        scanner.setOnError(undefined);
        parseDiagnostics = undefined;
        sourceFile = undefined;
        identifiers = undefined;
        syntaxCursor = undefined;
        sourceText = undefined;
    }
    function parseSourceFileWorker(fileName, languageVersion, setParentNodes, scriptKind) {
        sourceFile = createSourceFile(fileName, languageVersion, scriptKind);
        sourceFile.flags = contextFlags;
        nextToken();
        processReferenceComments(sourceFile);
        sourceFile.statements = parseList(0, parseStatement);
        ts.Debug.assert(token() === 1);
        sourceFile.endOfFileToken = parseTokenNode();
        setExternalModuleIndicator(sourceFile);
        sourceFile.nodeCount = nodeCount;
        sourceFile.identifierCount = identifierCount;
        sourceFile.identifiers = identifiers;
        sourceFile.parseDiagnostics = parseDiagnostics;
        if (setParentNodes) {
            fixupParentReferences(sourceFile);
        }
        return sourceFile;
    }
    function addJSDocComment(node) {
        var comments = ts.getJSDocCommentRanges(node, sourceFile.text);
        if (comments) {
            for (var _i = 0, comments_2 = comments; _i < comments_2.length; _i++) {
                var comment = comments_2[_i];
                var jsDoc = JSDocParser.parseJSDocComment(node, comment.pos, comment.end - comment.pos);
                if (!jsDoc) {
                    continue;
                }
                if (!node.jsDoc) {
                    node.jsDoc = [];
                }
                node.jsDoc.push(jsDoc);
            }
        }
        return node;
    }
    function fixupParentReferences(rootNode) {
        var parent = rootNode;
        forEachChild(rootNode, visitNode);
        return;
        function visitNode(n) {
            if (n.parent !== parent) {
                n.parent = parent;
                var saveParent = parent;
                parent = n;
                forEachChild(n, visitNode);
                if (n.jsDoc) {
                    for (var _i = 0, _a = n.jsDoc; _i < _a.length; _i++) {
                        var jsDoc = _a[_i];
                        jsDoc.parent = n;
                        parent = jsDoc;
                        forEachChild(jsDoc, visitNode);
                    }
                }
                parent = saveParent;
            }
        }
    }
    Parser.fixupParentReferences = fixupParentReferences;
    function createSourceFile(fileName, languageVersion, scriptKind) {
        var sourceFile = new SourceFileConstructor(261, 0, sourceText.length);
        nodeCount++;
        sourceFile.text = sourceText;
        sourceFile.bindDiagnostics = [];
        sourceFile.languageVersion = languageVersion;
        sourceFile.fileName = ts.normalizePath(fileName);
        sourceFile.languageVariant = getLanguageVariant(scriptKind);
        sourceFile.isDeclarationFile = ts.fileExtensionIs(sourceFile.fileName, ".d.ts");
        sourceFile.scriptKind = scriptKind;
        return sourceFile;
    }
    function setContextFlag(val, flag) {
        if (val) {
            contextFlags |= flag;
        }
        else {
            contextFlags &= ~flag;
        }
    }
    function setDisallowInContext(val) {
        setContextFlag(val, 2048);
    }
    function setYieldContext(val) {
        setContextFlag(val, 4096);
    }
    function setDecoratorContext(val) {
        setContextFlag(val, 8192);
    }
    function setAwaitContext(val) {
        setContextFlag(val, 16384);
    }
    function doOutsideOfContext(context, func) {
        var contextFlagsToClear = context & contextFlags;
        if (contextFlagsToClear) {
            setContextFlag(false, contextFlagsToClear);
            var result = func();
            setContextFlag(true, contextFlagsToClear);
            return result;
        }
        return func();
    }
    function doInsideOfContext(context, func) {
        var contextFlagsToSet = context & ~contextFlags;
        if (contextFlagsToSet) {
            setContextFlag(true, contextFlagsToSet);
            var result = func();
            setContextFlag(false, contextFlagsToSet);
            return result;
        }
        return func();
    }
    function allowInAnd(func) {
        return doOutsideOfContext(2048, func);
    }
    function disallowInAnd(func) {
        return doInsideOfContext(2048, func);
    }
    function doInYieldContext(func) {
        return doInsideOfContext(4096, func);
    }
    function doInDecoratorContext(func) {
        return doInsideOfContext(8192, func);
    }
    function doInAwaitContext(func) {
        return doInsideOfContext(16384, func);
    }
    function doOutsideOfAwaitContext(func) {
        return doOutsideOfContext(16384, func);
    }
    function doInYieldAndAwaitContext(func) {
        return doInsideOfContext(4096 | 16384, func);
    }
    function inContext(flags) {
        return (contextFlags & flags) !== 0;
    }
    function inYieldContext() {
        return inContext(4096);
    }
    function inDisallowInContext() {
        return inContext(2048);
    }
    function inDecoratorContext() {
        return inContext(8192);
    }
    function inAwaitContext() {
        return inContext(16384);
    }
    function parseErrorAtCurrentToken(message, arg0) {
        var start = scanner.getTokenPos();
        var length = scanner.getTextPos() - start;
        parseErrorAtPosition(start, length, message, arg0);
    }
    function parseErrorAtPosition(start, length, message, arg0) {
        var lastError = ts.lastOrUndefined(parseDiagnostics);
        if (!lastError || start !== lastError.start) {
            parseDiagnostics.push(ts.createFileDiagnostic(sourceFile, start, length, message, arg0));
        }
        parseErrorBeforeNextFinishedNode = true;
    }
    function scanError(message, length) {
        var pos = scanner.getTextPos();
        parseErrorAtPosition(pos, length || 0, message);
    }
    function getNodePos() {
        return scanner.getStartPos();
    }
    function getNodeEnd() {
        return scanner.getStartPos();
    }
    function token() {
        return currentToken;
    }
    function nextToken() {
        return currentToken = scanner.scan();
    }
    function reScanGreaterToken() {
        return currentToken = scanner.reScanGreaterToken();
    }
    function reScanSlashToken() {
        return currentToken = scanner.reScanSlashToken();
    }
    function reScanTemplateToken() {
        return currentToken = scanner.reScanTemplateToken();
    }
    function scanJsxIdentifier() {
        return currentToken = scanner.scanJsxIdentifier();
    }
    function scanJsxText() {
        return currentToken = scanner.scanJsxToken();
    }
    function scanJsxAttributeValue() {
        return currentToken = scanner.scanJsxAttributeValue();
    }
    function speculationHelper(callback, isLookAhead) {
        var saveToken = currentToken;
        var saveParseDiagnosticsLength = parseDiagnostics.length;
        var saveParseErrorBeforeNextFinishedNode = parseErrorBeforeNextFinishedNode;
        var saveContextFlags = contextFlags;
        var result = isLookAhead
            ? scanner.lookAhead(callback)
            : scanner.tryScan(callback);
        ts.Debug.assert(saveContextFlags === contextFlags);
        if (!result || isLookAhead) {
            currentToken = saveToken;
            parseDiagnostics.length = saveParseDiagnosticsLength;
            parseErrorBeforeNextFinishedNode = saveParseErrorBeforeNextFinishedNode;
        }
        return result;
    }
    function lookAhead(callback) {
        return speculationHelper(callback, true);
    }
    function tryParse(callback) {
        return speculationHelper(callback, false);
    }
    function isIdentifier() {
        if (token() === 70) {
            return true;
        }
        if (token() === 115 && inYieldContext()) {
            return false;
        }
        if (token() === 120 && inAwaitContext()) {
            return false;
        }
        return token() > 106;
    }
    function parseExpected(kind, diagnosticMessage, shouldAdvance) {
        if (shouldAdvance === void 0) { shouldAdvance = true; }
        if (token() === kind) {
            if (shouldAdvance) {
                nextToken();
            }
            return true;
        }
        if (diagnosticMessage) {
            parseErrorAtCurrentToken(diagnosticMessage);
        }
        else {
            parseErrorAtCurrentToken(ts.Diagnostics._0_expected, ts.tokenToString(kind));
        }
        return false;
    }
    function parseOptional(t) {
        if (token() === t) {
            nextToken();
            return true;
        }
        return false;
    }
    function parseOptionalToken(t) {
        if (token() === t) {
            return parseTokenNode();
        }
        return undefined;
    }
    function parseExpectedToken(t, reportAtCurrentPosition, diagnosticMessage, arg0) {
        return parseOptionalToken(t) ||
            createMissingNode(t, reportAtCurrentPosition, diagnosticMessage, arg0);
    }
    function parseTokenNode() {
        var node = createNode(token());
        nextToken();
        return finishNode(node);
    }
    function canParseSemicolon() {
        if (token() === 24) {
            return true;
        }
        return token() === 17 || token() === 1 || scanner.hasPrecedingLineBreak();
    }
    function parseSemicolon() {
        if (canParseSemicolon()) {
            if (token() === 24) {
                nextToken();
            }
            return true;
        }
        else {
            return parseExpected(24);
        }
    }
    function createNode(kind, pos) {
        nodeCount++;
        if (!(pos >= 0)) {
            pos = scanner.getStartPos();
        }
        return kind >= 141 ? new NodeConstructor(kind, pos, pos) :
            kind === 70 ? new IdentifierConstructor(kind, pos, pos) :
                new TokenConstructor(kind, pos, pos);
    }
    function createNodeArray(elements, pos) {
        var array = (elements || []);
        if (!(pos >= 0)) {
            pos = getNodePos();
        }
        array.pos = pos;
        array.end = pos;
        return array;
    }
    function finishNode(node, end) {
        node.end = end === undefined ? scanner.getStartPos() : end;
        if (contextFlags) {
            node.flags |= contextFlags;
        }
        if (parseErrorBeforeNextFinishedNode) {
            parseErrorBeforeNextFinishedNode = false;
            node.flags |= 32768;
        }
        return node;
    }
    function createMissingNode(kind, reportAtCurrentPosition, diagnosticMessage, arg0) {
        if (reportAtCurrentPosition) {
            parseErrorAtPosition(scanner.getStartPos(), 0, diagnosticMessage, arg0);
        }
        else {
            parseErrorAtCurrentToken(diagnosticMessage, arg0);
        }
        var result = createNode(kind, scanner.getStartPos());
        result.text = "";
        return finishNode(result);
    }
    function internIdentifier(text) {
        text = ts.escapeIdentifier(text);
        return identifiers[text] || (identifiers[text] = text);
    }
    function createIdentifier(isIdentifier, diagnosticMessage) {
        identifierCount++;
        if (isIdentifier) {
            var node = createNode(70);
            if (token() !== 70) {
                node.originalKeywordKind = token();
            }
            node.text = internIdentifier(scanner.getTokenValue());
            nextToken();
            return finishNode(node);
        }
        return createMissingNode(70, false, diagnosticMessage || ts.Diagnostics.Identifier_expected);
    }
    function parseIdentifier(diagnosticMessage) {
        return createIdentifier(isIdentifier(), diagnosticMessage);
    }
    function parseIdentifierName() {
        return createIdentifier(ts.tokenIsIdentifierOrKeyword(token()));
    }
    function isLiteralPropertyName() {
        return ts.tokenIsIdentifierOrKeyword(token()) ||
            token() === 9 ||
            token() === 8;
    }
    function parsePropertyNameWorker(allowComputedPropertyNames) {
        if (token() === 9 || token() === 8) {
            return parseLiteralNode(true);
        }
        if (allowComputedPropertyNames && token() === 20) {
            return parseComputedPropertyName();
        }
        return parseIdentifierName();
    }
    function parsePropertyName() {
        return parsePropertyNameWorker(true);
    }
    function parseSimplePropertyName() {
        return parsePropertyNameWorker(false);
    }
    function isSimplePropertyName() {
        return token() === 9 || token() === 8 || ts.tokenIsIdentifierOrKeyword(token());
    }
    function parseComputedPropertyName() {
        var node = createNode(142);
        parseExpected(20);
        node.expression = allowInAnd(parseExpression);
        parseExpected(21);
        return finishNode(node);
    }
    function parseContextualModifier(t) {
        return token() === t && tryParse(nextTokenCanFollowModifier);
    }
    function nextTokenIsOnSameLineAndCanFollowModifier() {
        nextToken();
        if (scanner.hasPrecedingLineBreak()) {
            return false;
        }
        return canFollowModifier();
    }
    function nextTokenCanFollowModifier() {
        if (token() === 75) {
            return nextToken() === 82;
        }
        if (token() === 83) {
            nextToken();
            if (token() === 78) {
                return lookAhead(nextTokenIsClassOrFunctionOrAsync);
            }
            return token() !== 38 && token() !== 117 && token() !== 16 && canFollowModifier();
        }
        if (token() === 78) {
            return nextTokenIsClassOrFunctionOrAsync();
        }
        if (token() === 114) {
            nextToken();
            return canFollowModifier();
        }
        return nextTokenIsOnSameLineAndCanFollowModifier();
    }
    function parseAnyContextualModifier() {
        return ts.isModifierKind(token()) && tryParse(nextTokenCanFollowModifier);
    }
    function canFollowModifier() {
        return token() === 20
            || token() === 16
            || token() === 38
            || token() === 23
            || isLiteralPropertyName();
    }
    function nextTokenIsClassOrFunctionOrAsync() {
        nextToken();
        return token() === 74 || token() === 88 ||
            (token() === 119 && lookAhead(nextTokenIsFunctionKeywordOnSameLine));
    }
    function isListElement(parsingContext, inErrorRecovery) {
        var node = currentNode(parsingContext);
        if (node) {
            return true;
        }
        switch (parsingContext) {
            case 0:
            case 1:
            case 3:
                return !(token() === 24 && inErrorRecovery) && isStartOfStatement();
            case 2:
                return token() === 72 || token() === 78;
            case 4:
                return lookAhead(isTypeMemberStart);
            case 5:
                return lookAhead(isClassMemberStart) || (token() === 24 && !inErrorRecovery);
            case 6:
                return token() === 20 || isLiteralPropertyName();
            case 12:
                return token() === 20 || token() === 38 || token() === 23 || isLiteralPropertyName();
            case 17:
                return isLiteralPropertyName();
            case 9:
                return token() === 20 || token() === 23 || isLiteralPropertyName();
            case 7:
                if (token() === 16) {
                    return lookAhead(isValidHeritageClauseObjectLiteral);
                }
                if (!inErrorRecovery) {
                    return isStartOfLeftHandSideExpression() && !isHeritageClauseExtendsOrImplementsKeyword();
                }
                else {
                    return isIdentifier() && !isHeritageClauseExtendsOrImplementsKeyword();
                }
            case 8:
                return isIdentifierOrPattern();
            case 10:
                return token() === 25 || token() === 23 || isIdentifierOrPattern();
            case 18:
                return isIdentifier();
            case 11:
            case 15:
                return token() === 25 || token() === 23 || isStartOfExpression();
            case 16:
                return isStartOfParameter();
            case 19:
            case 20:
                return token() === 25 || isStartOfType();
            case 21:
                return isHeritageClause();
            case 22:
                return ts.tokenIsIdentifierOrKeyword(token());
            case 13:
                return ts.tokenIsIdentifierOrKeyword(token()) || token() === 16;
            case 14:
                return true;
            case 23:
            case 24:
            case 26:
                return JSDocParser.isJSDocType();
            case 25:
                return isSimplePropertyName();
        }
        ts.Debug.fail("Non-exhaustive case in 'isListElement'.");
    }
    function isValidHeritageClauseObjectLiteral() {
        ts.Debug.assert(token() === 16);
        if (nextToken() === 17) {
            var next = nextToken();
            return next === 25 || next === 16 || next === 84 || next === 107;
        }
        return true;
    }
    function nextTokenIsIdentifier() {
        nextToken();
        return isIdentifier();
    }
    function nextTokenIsIdentifierOrKeyword() {
        nextToken();
        return ts.tokenIsIdentifierOrKeyword(token());
    }
    function isHeritageClauseExtendsOrImplementsKeyword() {
        if (token() === 107 ||
            token() === 84) {
            return lookAhead(nextTokenIsStartOfExpression);
        }
        return false;
    }
    function nextTokenIsStartOfExpression() {
        nextToken();
        return isStartOfExpression();
    }
    function isListTerminator(kind) {
        if (token() === 1) {
            return true;
        }
        switch (kind) {
            case 1:
            case 2:
            case 4:
            case 5:
            case 6:
            case 12:
            case 9:
            case 22:
                return token() === 17;
            case 3:
                return token() === 17 || token() === 72 || token() === 78;
            case 7:
                return token() === 16 || token() === 84 || token() === 107;
            case 8:
                return isVariableDeclaratorListTerminator();
            case 18:
                return token() === 28 || token() === 18 || token() === 16 || token() === 84 || token() === 107;
            case 11:
                return token() === 19 || token() === 24;
            case 15:
            case 20:
            case 10:
                return token() === 21;
            case 16:
            case 17:
                return token() === 19 || token() === 21;
            case 19:
                return token() !== 25;
            case 21:
                return token() === 16 || token() === 17;
            case 13:
                return token() === 28 || token() === 40;
            case 14:
                return token() === 26 && lookAhead(nextTokenIsSlash);
            case 23:
                return token() === 19 || token() === 55 || token() === 17;
            case 24:
                return token() === 28 || token() === 17;
            case 26:
                return token() === 21 || token() === 17;
            case 25:
                return token() === 17;
        }
    }
    function isVariableDeclaratorListTerminator() {
        if (canParseSemicolon()) {
            return true;
        }
        if (isInOrOfKeyword(token())) {
            return true;
        }
        if (token() === 35) {
            return true;
        }
        return false;
    }
    function isInSomeParsingContext() {
        for (var kind = 0; kind < 27; kind++) {
            if (parsingContext & (1 << kind)) {
                if (isListElement(kind, true) || isListTerminator(kind)) {
                    return true;
                }
            }
        }
        return false;
    }
    function parseList(kind, parseElement) {
        var saveParsingContext = parsingContext;
        parsingContext |= 1 << kind;
        var result = createNodeArray();
        while (!isListTerminator(kind)) {
            if (isListElement(kind, false)) {
                var element = parseListElement(kind, parseElement);
                result.push(element);
                continue;
            }
            if (abortParsingListOrMoveToNextToken(kind)) {
                break;
            }
        }
        result.end = getNodeEnd();
        parsingContext = saveParsingContext;
        return result;
    }
    function parseListElement(parsingContext, parseElement) {
        var node = currentNode(parsingContext);
        if (node) {
            return consumeNode(node);
        }
        return parseElement();
    }
    function currentNode(parsingContext) {
        if (parseErrorBeforeNextFinishedNode) {
            return undefined;
        }
        if (!syntaxCursor) {
            return undefined;
        }
        var node = syntaxCursor.currentNode(scanner.getStartPos());
        if (ts.nodeIsMissing(node)) {
            return undefined;
        }
        if (node.intersectsChange) {
            return undefined;
        }
        if (ts.containsParseError(node)) {
            return undefined;
        }
        var nodeContextFlags = node.flags & 96256;
        if (nodeContextFlags !== contextFlags) {
            return undefined;
        }
        if (!canReuseNode(node, parsingContext)) {
            return undefined;
        }
        return node;
    }
    function consumeNode(node) {
        scanner.setTextPos(node.end);
        nextToken();
        return node;
    }
    function canReuseNode(node, parsingContext) {
        switch (parsingContext) {
            case 5:
                return isReusableClassMember(node);
            case 2:
                return isReusableSwitchClause(node);
            case 0:
            case 1:
            case 3:
                return isReusableStatement(node);
            case 6:
                return isReusableEnumMember(node);
            case 4:
                return isReusableTypeMember(node);
            case 8:
                return isReusableVariableDeclaration(node);
            case 16:
                return isReusableParameter(node);
            case 17:
                return false;
            case 21:
            case 18:
            case 20:
            case 19:
            case 11:
            case 12:
            case 7:
            case 13:
            case 14:
        }
        return false;
    }
    function isReusableClassMember(node) {
        if (node) {
            switch (node.kind) {
                case 150:
                case 155:
                case 151:
                case 152:
                case 147:
                case 203:
                    return true;
                case 149:
                    var methodDeclaration = node;
                    var nameIsConstructor = methodDeclaration.name.kind === 70 &&
                        methodDeclaration.name.originalKeywordKind === 122;
                    return !nameIsConstructor;
            }
        }
        return false;
    }
    function isReusableSwitchClause(node) {
        if (node) {
            switch (node.kind) {
                case 253:
                case 254:
                    return true;
            }
        }
        return false;
    }
    function isReusableStatement(node) {
        if (node) {
            switch (node.kind) {
                case 225:
                case 205:
                case 204:
                case 208:
                case 207:
                case 220:
                case 216:
                case 218:
                case 215:
                case 214:
                case 212:
                case 213:
                case 211:
                case 210:
                case 217:
                case 206:
                case 221:
                case 219:
                case 209:
                case 222:
                case 235:
                case 234:
                case 241:
                case 240:
                case 230:
                case 226:
                case 227:
                case 229:
                case 228:
                    return true;
            }
        }
        return false;
    }
    function isReusableEnumMember(node) {
        return node.kind === 260;
    }
    function isReusableTypeMember(node) {
        if (node) {
            switch (node.kind) {
                case 154:
                case 148:
                case 155:
                case 146:
                case 153:
                    return true;
            }
        }
        return false;
    }
    function isReusableVariableDeclaration(node) {
        if (node.kind !== 223) {
            return false;
        }
        var variableDeclarator = node;
        return variableDeclarator.initializer === undefined;
    }
    function isReusableParameter(node) {
        if (node.kind !== 144) {
            return false;
        }
        var parameter = node;
        return parameter.initializer === undefined;
    }
    function abortParsingListOrMoveToNextToken(kind) {
        parseErrorAtCurrentToken(parsingContextErrors(kind));
        if (isInSomeParsingContext()) {
            return true;
        }
        nextToken();
        return false;
    }
    function parsingContextErrors(context) {
        switch (context) {
            case 0: return ts.Diagnostics.Declaration_or_statement_expected;
            case 1: return ts.Diagnostics.Declaration_or_statement_expected;
            case 2: return ts.Diagnostics.case_or_default_expected;
            case 3: return ts.Diagnostics.Statement_expected;
            case 17:
            case 4: return ts.Diagnostics.Property_or_signature_expected;
            case 5: return ts.Diagnostics.Unexpected_token_A_constructor_method_accessor_or_property_was_expected;
            case 6: return ts.Diagnostics.Enum_member_expected;
            case 7: return ts.Diagnostics.Expression_expected;
            case 8: return ts.Diagnostics.Variable_declaration_expected;
            case 9: return ts.Diagnostics.Property_destructuring_pattern_expected;
            case 10: return ts.Diagnostics.Array_element_destructuring_pattern_expected;
            case 11: return ts.Diagnostics.Argument_expression_expected;
            case 12: return ts.Diagnostics.Property_assignment_expected;
            case 15: return ts.Diagnostics.Expression_or_comma_expected;
            case 16: return ts.Diagnostics.Parameter_declaration_expected;
            case 18: return ts.Diagnostics.Type_parameter_declaration_expected;
            case 19: return ts.Diagnostics.Type_argument_expected;
            case 20: return ts.Diagnostics.Type_expected;
            case 21: return ts.Diagnostics.Unexpected_token_expected;
            case 22: return ts.Diagnostics.Identifier_expected;
            case 13: return ts.Diagnostics.Identifier_expected;
            case 14: return ts.Diagnostics.Identifier_expected;
            case 23: return ts.Diagnostics.Parameter_declaration_expected;
            case 24: return ts.Diagnostics.Type_argument_expected;
            case 26: return ts.Diagnostics.Type_expected;
            case 25: return ts.Diagnostics.Property_assignment_expected;
        }
    }
    ;
    function parseDelimitedList(kind, parseElement, considerSemicolonAsDelimiter) {
        var saveParsingContext = parsingContext;
        parsingContext |= 1 << kind;
        var result = createNodeArray();
        var commaStart = -1;
        while (true) {
            if (isListElement(kind, false)) {
                result.push(parseListElement(kind, parseElement));
                commaStart = scanner.getTokenPos();
                if (parseOptional(25)) {
                    continue;
                }
                commaStart = -1;
                if (isListTerminator(kind)) {
                    break;
                }
                parseExpected(25);
                if (considerSemicolonAsDelimiter && token() === 24 && !scanner.hasPrecedingLineBreak()) {
                    nextToken();
                }
                continue;
            }
            if (isListTerminator(kind)) {
                break;
            }
            if (abortParsingListOrMoveToNextToken(kind)) {
                break;
            }
        }
        if (commaStart >= 0) {
            result.hasTrailingComma = true;
        }
        result.end = getNodeEnd();
        parsingContext = saveParsingContext;
        return result;
    }
    function createMissingList() {
        return createNodeArray();
    }
    function parseBracketedList(kind, parseElement, open, close) {
        if (parseExpected(open)) {
            var result = parseDelimitedList(kind, parseElement);
            parseExpected(close);
            return result;
        }
        return createMissingList();
    }
    function parseEntityName(allowReservedWords, diagnosticMessage) {
        var entity = parseIdentifier(diagnosticMessage);
        while (parseOptional(22)) {
            var node = createNode(141, entity.pos);
            node.left = entity;
            node.right = parseRightSideOfDot(allowReservedWords);
            entity = finishNode(node);
        }
        return entity;
    }
    function parseRightSideOfDot(allowIdentifierNames) {
        if (scanner.hasPrecedingLineBreak() && ts.tokenIsIdentifierOrKeyword(token())) {
            var matchesPattern = lookAhead(nextTokenIsIdentifierOrKeywordOnSameLine);
            if (matchesPattern) {
                return createMissingNode(70, true, ts.Diagnostics.Identifier_expected);
            }
        }
        return allowIdentifierNames ? parseIdentifierName() : parseIdentifier();
    }
    function parseTemplateExpression() {
        var template = createNode(194);
        template.head = parseTemplateHead();
        ts.Debug.assert(template.head.kind === 13, "Template head has wrong token kind");
        var templateSpans = createNodeArray();
        do {
            templateSpans.push(parseTemplateSpan());
        } while (ts.lastOrUndefined(templateSpans).literal.kind === 14);
        templateSpans.end = getNodeEnd();
        template.templateSpans = templateSpans;
        return finishNode(template);
    }
    function parseTemplateSpan() {
        var span = createNode(202);
        span.expression = allowInAnd(parseExpression);
        var literal;
        if (token() === 17) {
            reScanTemplateToken();
            literal = parseTemplateMiddleOrTemplateTail();
        }
        else {
            literal = parseExpectedToken(15, false, ts.Diagnostics._0_expected, ts.tokenToString(17));
        }
        span.literal = literal;
        return finishNode(span);
    }
    function parseLiteralNode(internName) {
        return parseLiteralLikeNode(token(), internName);
    }
    function parseTemplateHead() {
        var fragment = parseLiteralLikeNode(token(), false);
        ts.Debug.assert(fragment.kind === 13, "Template head has wrong token kind");
        return fragment;
    }
    function parseTemplateMiddleOrTemplateTail() {
        var fragment = parseLiteralLikeNode(token(), false);
        ts.Debug.assert(fragment.kind === 14 || fragment.kind === 15, "Template fragment has wrong token kind");
        return fragment;
    }
    function parseLiteralLikeNode(kind, internName) {
        var node = createNode(kind);
        var text = scanner.getTokenValue();
        node.text = internName ? internIdentifier(text) : text;
        if (scanner.hasExtendedUnicodeEscape()) {
            node.hasExtendedUnicodeEscape = true;
        }
        if (scanner.isUnterminated()) {
            node.isUnterminated = true;
        }
        var tokenPos = scanner.getTokenPos();
        nextToken();
        finishNode(node);
        if (node.kind === 8
            && sourceText.charCodeAt(tokenPos) === 48
            && ts.isOctalDigit(sourceText.charCodeAt(tokenPos + 1))) {
            node.isOctalLiteral = true;
        }
        return node;
    }
    function parseTypeReference() {
        var typeName = parseEntityName(false, ts.Diagnostics.Type_expected);
        var node = createNode(157, typeName.pos);
        node.typeName = typeName;
        if (!scanner.hasPrecedingLineBreak() && token() === 26) {
            node.typeArguments = parseBracketedList(19, parseType, 26, 28);
        }
        return finishNode(node);
    }
    function parseThisTypePredicate(lhs) {
        nextToken();
        var node = createNode(156, lhs.pos);
        node.parameterName = lhs;
        node.type = parseType();
        return finishNode(node);
    }
    function parseThisTypeNode() {
        var node = createNode(167);
        nextToken();
        return finishNode(node);
    }
    function parseTypeQuery() {
        var node = createNode(160);
        parseExpected(102);
        node.exprName = parseEntityName(true);
        return finishNode(node);
    }
    function parseTypeParameter() {
        var node = createNode(143);
        node.name = parseIdentifier();
        if (parseOptional(84)) {
            if (isStartOfType() || !isStartOfExpression()) {
                node.constraint = parseType();
            }
            else {
                node.expression = parseUnaryExpressionOrHigher();
            }
        }
        return finishNode(node);
    }
    function parseTypeParameters() {
        if (token() === 26) {
            return parseBracketedList(18, parseTypeParameter, 26, 28);
        }
    }
    function parseParameterType() {
        if (parseOptional(55)) {
            return parseType();
        }
        return undefined;
    }
    function isStartOfParameter() {
        return token() === 23 || isIdentifierOrPattern() || ts.isModifierKind(token()) || token() === 56 || token() === 98;
    }
    function parseParameter() {
        var node = createNode(144);
        if (token() === 98) {
            node.name = createIdentifier(true, undefined);
            node.type = parseParameterType();
            return finishNode(node);
        }
        node.decorators = parseDecorators();
        node.modifiers = parseModifiers();
        node.dotDotDotToken = parseOptionalToken(23);
        node.name = parseIdentifierOrPattern();
        if (ts.getFullWidth(node.name) === 0 && !ts.hasModifiers(node) && ts.isModifierKind(token())) {
            nextToken();
        }
        node.questionToken = parseOptionalToken(54);
        node.type = parseParameterType();
        node.initializer = parseBindingElementInitializer(true);
        return addJSDocComment(finishNode(node));
    }
    function parseBindingElementInitializer(inParameter) {
        return inParameter ? parseParameterInitializer() : parseNonParameterInitializer();
    }
    function parseParameterInitializer() {
        return parseInitializer(true);
    }
    function fillSignature(returnToken, yieldContext, awaitContext, requireCompleteParameterList, signature) {
        var returnTokenRequired = returnToken === 35;
        signature.typeParameters = parseTypeParameters();
        signature.parameters = parseParameterList(yieldContext, awaitContext, requireCompleteParameterList);
        if (returnTokenRequired) {
            parseExpected(returnToken);
            signature.type = parseTypeOrTypePredicate();
        }
        else if (parseOptional(returnToken)) {
            signature.type = parseTypeOrTypePredicate();
        }
    }
    function parseParameterList(yieldContext, awaitContext, requireCompleteParameterList) {
        if (parseExpected(18)) {
            var savedYieldContext = inYieldContext();
            var savedAwaitContext = inAwaitContext();
            setYieldContext(yieldContext);
            setAwaitContext(awaitContext);
            var result = parseDelimitedList(16, parseParameter);
            setYieldContext(savedYieldContext);
            setAwaitContext(savedAwaitContext);
            if (!parseExpected(19) && requireCompleteParameterList) {
                return undefined;
            }
            return result;
        }
        return requireCompleteParameterList ? undefined : createMissingList();
    }
    function parseTypeMemberSemicolon() {
        if (parseOptional(25)) {
            return;
        }
        parseSemicolon();
    }
    function parseSignatureMember(kind) {
        var node = createNode(kind);
        if (kind === 154) {
            parseExpected(93);
        }
        fillSignature(55, false, false, false, node);
        parseTypeMemberSemicolon();
        return addJSDocComment(finishNode(node));
    }
    function isIndexSignature() {
        if (token() !== 20) {
            return false;
        }
        return lookAhead(isUnambiguouslyIndexSignature);
    }
    function isUnambiguouslyIndexSignature() {
        nextToken();
        if (token() === 23 || token() === 21) {
            return true;
        }
        if (ts.isModifierKind(token())) {
            nextToken();
            if (isIdentifier()) {
                return true;
            }
        }
        else if (!isIdentifier()) {
            return false;
        }
        else {
            nextToken();
        }
        if (token() === 55 || token() === 25) {
            return true;
        }
        if (token() !== 54) {
            return false;
        }
        nextToken();
        return token() === 55 || token() === 25 || token() === 21;
    }
    function parseIndexSignatureDeclaration(fullStart, decorators, modifiers) {
        var node = createNode(155, fullStart);
        node.decorators = decorators;
        node.modifiers = modifiers;
        node.parameters = parseBracketedList(16, parseParameter, 20, 21);
        node.type = parseTypeAnnotation();
        parseTypeMemberSemicolon();
        return finishNode(node);
    }
    function parsePropertyOrMethodSignature(fullStart, modifiers) {
        var name = parsePropertyName();
        var questionToken = parseOptionalToken(54);
        if (token() === 18 || token() === 26) {
            var method = createNode(148, fullStart);
            method.modifiers = modifiers;
            method.name = name;
            method.questionToken = questionToken;
            fillSignature(55, false, false, false, method);
            parseTypeMemberSemicolon();
            return addJSDocComment(finishNode(method));
        }
        else {
            var property = createNode(146, fullStart);
            property.modifiers = modifiers;
            property.name = name;
            property.questionToken = questionToken;
            property.type = parseTypeAnnotation();
            if (token() === 57) {
                property.initializer = parseNonParameterInitializer();
            }
            parseTypeMemberSemicolon();
            return addJSDocComment(finishNode(property));
        }
    }
    function isTypeMemberStart() {
        var idToken;
        if (token() === 18 || token() === 26) {
            return true;
        }
        while (ts.isModifierKind(token())) {
            idToken = token();
            nextToken();
        }
        if (token() === 20) {
            return true;
        }
        if (isLiteralPropertyName()) {
            idToken = token();
            nextToken();
        }
        if (idToken) {
            return token() === 18 ||
                token() === 26 ||
                token() === 54 ||
                token() === 55 ||
                token() === 25 ||
                canParseSemicolon();
        }
        return false;
    }
    function parseTypeMember() {
        if (token() === 18 || token() === 26) {
            return parseSignatureMember(153);
        }
        if (token() === 93 && lookAhead(isStartOfConstructSignature)) {
            return parseSignatureMember(154);
        }
        var fullStart = getNodePos();
        var modifiers = parseModifiers();
        if (isIndexSignature()) {
            return parseIndexSignatureDeclaration(fullStart, undefined, modifiers);
        }
        return parsePropertyOrMethodSignature(fullStart, modifiers);
    }
    function isStartOfConstructSignature() {
        nextToken();
        return token() === 18 || token() === 26;
    }
    function parseTypeLiteral() {
        var node = createNode(161);
        node.members = parseObjectTypeMembers();
        return finishNode(node);
    }
    function parseObjectTypeMembers() {
        var members;
        if (parseExpected(16)) {
            members = parseList(4, parseTypeMember);
            parseExpected(17);
        }
        else {
            members = createMissingList();
        }
        return members;
    }
    function isStartOfMappedType() {
        nextToken();
        if (token() === 130) {
            nextToken();
        }
        return token() === 20 && nextTokenIsIdentifier() && nextToken() === 91;
    }
    function parseMappedTypeParameter() {
        var node = createNode(143);
        node.name = parseIdentifier();
        parseExpected(91);
        node.constraint = parseType();
        return finishNode(node);
    }
    function parseMappedType() {
        var node = createNode(170);
        parseExpected(16);
        node.readonlyToken = parseOptionalToken(130);
        parseExpected(20);
        node.typeParameter = parseMappedTypeParameter();
        parseExpected(21);
        node.questionToken = parseOptionalToken(54);
        node.type = parseTypeAnnotation();
        parseSemicolon();
        parseExpected(17);
        return finishNode(node);
    }
    function parseTupleType() {
        var node = createNode(163);
        node.elementTypes = parseBracketedList(20, parseType, 20, 21);
        return finishNode(node);
    }
    function parseParenthesizedType() {
        var node = createNode(166);
        parseExpected(18);
        node.type = parseType();
        parseExpected(19);
        return finishNode(node);
    }
    function parseFunctionOrConstructorType(kind) {
        var node = createNode(kind);
        if (kind === 159) {
            parseExpected(93);
        }
        fillSignature(35, false, false, false, node);
        return finishNode(node);
    }
    function parseKeywordAndNoDot() {
        var node = parseTokenNode();
        return token() === 22 ? undefined : node;
    }
    function parseLiteralTypeNode() {
        var node = createNode(171);
        node.literal = parseSimpleUnaryExpression();
        finishNode(node);
        return node;
    }
    function nextTokenIsNumericLiteral() {
        return nextToken() === 8;
    }
    function parseNonArrayType() {
        switch (token()) {
            case 118:
            case 134:
            case 132:
            case 121:
            case 135:
            case 137:
            case 129:
                var node = tryParse(parseKeywordAndNoDot);
                return node || parseTypeReference();
            case 9:
            case 8:
            case 100:
            case 85:
                return parseLiteralTypeNode();
            case 37:
                return lookAhead(nextTokenIsNumericLiteral) ? parseLiteralTypeNode() : parseTypeReference();
            case 104:
            case 94:
                return parseTokenNode();
            case 98: {
                var thisKeyword = parseThisTypeNode();
                if (token() === 125 && !scanner.hasPrecedingLineBreak()) {
                    return parseThisTypePredicate(thisKeyword);
                }
                else {
                    return thisKeyword;
                }
            }
            case 102:
                return parseTypeQuery();
            case 16:
                return lookAhead(isStartOfMappedType) ? parseMappedType() : parseTypeLiteral();
            case 20:
                return parseTupleType();
            case 18:
                return parseParenthesizedType();
            default:
                return parseTypeReference();
        }
    }
    function isStartOfType() {
        switch (token()) {
            case 118:
            case 134:
            case 132:
            case 121:
            case 135:
            case 104:
            case 137:
            case 94:
            case 98:
            case 102:
            case 129:
            case 16:
            case 20:
            case 26:
            case 48:
            case 47:
            case 93:
            case 9:
            case 8:
            case 100:
            case 85:
                return true;
            case 37:
                return lookAhead(nextTokenIsNumericLiteral);
            case 18:
                return lookAhead(isStartOfParenthesizedOrFunctionType);
            default:
                return isIdentifier();
        }
    }
    function isStartOfParenthesizedOrFunctionType() {
        nextToken();
        return token() === 19 || isStartOfParameter() || isStartOfType();
    }
    function parseArrayTypeOrHigher() {
        var type = parseNonArrayType();
        while (!scanner.hasPrecedingLineBreak() && parseOptional(20)) {
            if (isStartOfType()) {
                var node = createNode(169, type.pos);
                node.objectType = type;
                node.indexType = parseType();
                parseExpected(21);
                type = finishNode(node);
            }
            else {
                var node = createNode(162, type.pos);
                node.elementType = type;
                parseExpected(21);
                type = finishNode(node);
            }
        }
        return type;
    }
    function parseTypeOperator(operator) {
        var node = createNode(168);
        parseExpected(operator);
        node.operator = operator;
        node.type = parseTypeOperatorOrHigher();
        return finishNode(node);
    }
    function parseTypeOperatorOrHigher() {
        switch (token()) {
            case 126:
                return parseTypeOperator(126);
        }
        return parseArrayTypeOrHigher();
    }
    function parseUnionOrIntersectionType(kind, parseConstituentType, operator) {
        parseOptional(operator);
        var type = parseConstituentType();
        if (token() === operator) {
            var types = createNodeArray([type], type.pos);
            while (parseOptional(operator)) {
                types.push(parseConstituentType());
            }
            types.end = getNodeEnd();
            var node = createNode(kind, type.pos);
            node.types = types;
            type = finishNode(node);
        }
        return type;
    }
    function parseIntersectionTypeOrHigher() {
        return parseUnionOrIntersectionType(165, parseTypeOperatorOrHigher, 47);
    }
    function parseUnionTypeOrHigher() {
        return parseUnionOrIntersectionType(164, parseIntersectionTypeOrHigher, 48);
    }
    function isStartOfFunctionType() {
        if (token() === 26) {
            return true;
        }
        return token() === 18 && lookAhead(isUnambiguouslyStartOfFunctionType);
    }
    function skipParameterStart() {
        if (ts.isModifierKind(token())) {
            parseModifiers();
        }
        if (isIdentifier() || token() === 98) {
            nextToken();
            return true;
        }
        if (token() === 20 || token() === 16) {
            var previousErrorCount = parseDiagnostics.length;
            parseIdentifierOrPattern();
            return previousErrorCount === parseDiagnostics.length;
        }
        return false;
    }
    function isUnambiguouslyStartOfFunctionType() {
        nextToken();
        if (token() === 19 || token() === 23) {
            return true;
        }
        if (skipParameterStart()) {
            if (token() === 55 || token() === 25 ||
                token() === 54 || token() === 57) {
                return true;
            }
            if (token() === 19) {
                nextToken();
                if (token() === 35) {
                    return true;
                }
            }
        }
        return false;
    }
    function parseTypeOrTypePredicate() {
        var typePredicateVariable = isIdentifier() && tryParse(parseTypePredicatePrefix);
        var type = parseType();
        if (typePredicateVariable) {
            var node = createNode(156, typePredicateVariable.pos);
            node.parameterName = typePredicateVariable;
            node.type = type;
            return finishNode(node);
        }
        else {
            return type;
        }
    }
    function parseTypePredicatePrefix() {
        var id = parseIdentifier();
        if (token() === 125 && !scanner.hasPrecedingLineBreak()) {
            nextToken();
            return id;
        }
    }
    function parseType() {
        return doOutsideOfContext(20480, parseTypeWorker);
    }
    function parseTypeWorker() {
        if (isStartOfFunctionType()) {
            return parseFunctionOrConstructorType(158);
        }
        if (token() === 93) {
            return parseFunctionOrConstructorType(159);
        }
        return parseUnionTypeOrHigher();
    }
    function parseTypeAnnotation() {
        return parseOptional(55) ? parseType() : undefined;
    }
    function isStartOfLeftHandSideExpression() {
        switch (token()) {
            case 98:
            case 96:
            case 94:
            case 100:
            case 85:
            case 8:
            case 9:
            case 12:
            case 13:
            case 18:
            case 20:
            case 16:
            case 88:
            case 74:
            case 93:
            case 40:
            case 62:
            case 70:
                return true;
            default:
                return isIdentifier();
        }
    }
    function isStartOfExpression() {
        if (isStartOfLeftHandSideExpression()) {
            return true;
        }
        switch (token()) {
            case 36:
            case 37:
            case 51:
            case 50:
            case 79:
            case 102:
            case 104:
            case 42:
            case 43:
            case 26:
            case 120:
            case 115:
                return true;
            default:
                if (isBinaryOperator()) {
                    return true;
                }
                return isIdentifier();
        }
    }
    function isStartOfExpressionStatement() {
        return token() !== 16 &&
            token() !== 88 &&
            token() !== 74 &&
            token() !== 56 &&
            isStartOfExpression();
    }
    function parseExpression() {
        var saveDecoratorContext = inDecoratorContext();
        if (saveDecoratorContext) {
            setDecoratorContext(false);
        }
        var expr = parseAssignmentExpressionOrHigher();
        var operatorToken;
        while ((operatorToken = parseOptionalToken(25))) {
            expr = makeBinaryExpression(expr, operatorToken, parseAssignmentExpressionOrHigher());
        }
        if (saveDecoratorContext) {
            setDecoratorContext(true);
        }
        return expr;
    }
    function parseInitializer(inParameter) {
        if (token() !== 57) {
            if (scanner.hasPrecedingLineBreak() || (inParameter && token() === 16) || !isStartOfExpression()) {
                return undefined;
            }
        }
        parseExpected(57);
        return parseAssignmentExpressionOrHigher();
    }
    function parseAssignmentExpressionOrHigher() {
        if (isYieldExpression()) {
            return parseYieldExpression();
        }
        var arrowExpression = tryParseParenthesizedArrowFunctionExpression() || tryParseAsyncSimpleArrowFunctionExpression();
        if (arrowExpression) {
            return arrowExpression;
        }
        var expr = parseBinaryExpressionOrHigher(0);
        if (expr.kind === 70 && token() === 35) {
            return parseSimpleArrowFunctionExpression(expr);
        }
        if (ts.isLeftHandSideExpression(expr) && ts.isAssignmentOperator(reScanGreaterToken())) {
            return makeBinaryExpression(expr, parseTokenNode(), parseAssignmentExpressionOrHigher());
        }
        return parseConditionalExpressionRest(expr);
    }
    function isYieldExpression() {
        if (token() === 115) {
            if (inYieldContext()) {
                return true;
            }
            return lookAhead(nextTokenIsIdentifierOrKeywordOrNumberOnSameLine);
        }
        return false;
    }
    function nextTokenIsIdentifierOnSameLine() {
        nextToken();
        return !scanner.hasPrecedingLineBreak() && isIdentifier();
    }
    function parseYieldExpression() {
        var node = createNode(195);
        nextToken();
        if (!scanner.hasPrecedingLineBreak() &&
            (token() === 38 || isStartOfExpression())) {
            node.asteriskToken = parseOptionalToken(38);
            node.expression = parseAssignmentExpressionOrHigher();
            return finishNode(node);
        }
        else {
            return finishNode(node);
        }
    }
    function parseSimpleArrowFunctionExpression(identifier, asyncModifier) {
        ts.Debug.assert(token() === 35, "parseSimpleArrowFunctionExpression should only have been called if we had a =>");
        var node;
        if (asyncModifier) {
            node = createNode(185, asyncModifier.pos);
            node.modifiers = asyncModifier;
        }
        else {
            node = createNode(185, identifier.pos);
        }
        var parameter = createNode(144, identifier.pos);
        parameter.name = identifier;
        finishNode(parameter);
        node.parameters = createNodeArray([parameter], parameter.pos);
        node.parameters.end = parameter.end;
        node.equalsGreaterThanToken = parseExpectedToken(35, false, ts.Diagnostics._0_expected, "=>");
        node.body = parseArrowFunctionExpressionBody(!!asyncModifier);
        return addJSDocComment(finishNode(node));
    }
    function tryParseParenthesizedArrowFunctionExpression() {
        var triState = isParenthesizedArrowFunctionExpression();
        if (triState === 0) {
            return undefined;
        }
        var arrowFunction = triState === 1
            ? parseParenthesizedArrowFunctionExpressionHead(true)
            : tryParse(parsePossibleParenthesizedArrowFunctionExpressionHead);
        if (!arrowFunction) {
            return undefined;
        }
        var isAsync = !!(ts.getModifierFlags(arrowFunction) & 256);
        var lastToken = token();
        arrowFunction.equalsGreaterThanToken = parseExpectedToken(35, false, ts.Diagnostics._0_expected, "=>");
        arrowFunction.body = (lastToken === 35 || lastToken === 16)
            ? parseArrowFunctionExpressionBody(isAsync)
            : parseIdentifier();
        return addJSDocComment(finishNode(arrowFunction));
    }
    function isParenthesizedArrowFunctionExpression() {
        if (token() === 18 || token() === 26 || token() === 119) {
            return lookAhead(isParenthesizedArrowFunctionExpressionWorker);
        }
        if (token() === 35) {
            return 1;
        }
        return 0;
    }
    function isParenthesizedArrowFunctionExpressionWorker() {
        if (token() === 119) {
            nextToken();
            if (scanner.hasPrecedingLineBreak()) {
                return 0;
            }
            if (token() !== 18 && token() !== 26) {
                return 0;
            }
        }
        var first = token();
        var second = nextToken();
        if (first === 18) {
            if (second === 19) {
                var third = nextToken();
                switch (third) {
                    case 35:
                    case 55:
                    case 16:
                        return 1;
                    default:
                        return 0;
                }
            }
            if (second === 20 || second === 16) {
                return 2;
            }
            if (second === 23) {
                return 1;
            }
            if (!isIdentifier()) {
                return 0;
            }
            if (nextToken() === 55) {
                return 1;
            }
            return 2;
        }
        else {
            ts.Debug.assert(first === 26);
            if (!isIdentifier()) {
                return 0;
            }
            if (sourceFile.languageVariant === 1) {
                var isArrowFunctionInJsx = lookAhead(function () {
                    var third = nextToken();
                    if (third === 84) {
                        var fourth = nextToken();
                        switch (fourth) {
                            case 57:
                            case 28:
                                return false;
                            default:
                                return true;
                        }
                    }
                    else if (third === 25) {
                        return true;
                    }
                    return false;
                });
                if (isArrowFunctionInJsx) {
                    return 1;
                }
                return 0;
            }
            return 2;
        }
    }
    function parsePossibleParenthesizedArrowFunctionExpressionHead() {
        return parseParenthesizedArrowFunctionExpressionHead(false);
    }
    function tryParseAsyncSimpleArrowFunctionExpression() {
        if (token() === 119) {
            var isUnParenthesizedAsyncArrowFunction = lookAhead(isUnParenthesizedAsyncArrowFunctionWorker);
            if (isUnParenthesizedAsyncArrowFunction === 1) {
                var asyncModifier = parseModifiersForArrowFunction();
                var expr = parseBinaryExpressionOrHigher(0);
                return parseSimpleArrowFunctionExpression(expr, asyncModifier);
            }
        }
        return undefined;
    }
    function isUnParenthesizedAsyncArrowFunctionWorker() {
        if (token() === 119) {
            nextToken();
            if (scanner.hasPrecedingLineBreak() || token() === 35) {
                return 0;
            }
            var expr = parseBinaryExpressionOrHigher(0);
            if (!scanner.hasPrecedingLineBreak() && expr.kind === 70 && token() === 35) {
                return 1;
            }
        }
        return 0;
    }
    function parseParenthesizedArrowFunctionExpressionHead(allowAmbiguity) {
        var node = createNode(185);
        node.modifiers = parseModifiersForArrowFunction();
        var isAsync = !!(ts.getModifierFlags(node) & 256);
        fillSignature(55, false, isAsync, !allowAmbiguity, node);
        if (!node.parameters) {
            return undefined;
        }
        if (!allowAmbiguity && token() !== 35 && token() !== 16) {
            return undefined;
        }
        return node;
    }
    function parseArrowFunctionExpressionBody(isAsync) {
        if (token() === 16) {
            return parseFunctionBlock(false, isAsync, false);
        }
        if (token() !== 24 &&
            token() !== 88 &&
            token() !== 74 &&
            isStartOfStatement() &&
            !isStartOfExpressionStatement()) {
            return parseFunctionBlock(false, isAsync, true);
        }
        return isAsync
            ? doInAwaitContext(parseAssignmentExpressionOrHigher)
            : doOutsideOfAwaitContext(parseAssignmentExpressionOrHigher);
    }
    function parseConditionalExpressionRest(leftOperand) {
        var questionToken = parseOptionalToken(54);
        if (!questionToken) {
            return leftOperand;
        }
        var node = createNode(193, leftOperand.pos);
        node.condition = leftOperand;
        node.questionToken = questionToken;
        node.whenTrue = doOutsideOfContext(disallowInAndDecoratorContext, parseAssignmentExpressionOrHigher);
        node.colonToken = parseExpectedToken(55, false, ts.Diagnostics._0_expected, ts.tokenToString(55));
        node.whenFalse = parseAssignmentExpressionOrHigher();
        return finishNode(node);
    }
    function parseBinaryExpressionOrHigher(precedence) {
        var leftOperand = parseUnaryExpressionOrHigher();
        return parseBinaryExpressionRest(precedence, leftOperand);
    }
    function isInOrOfKeyword(t) {
        return t === 91 || t === 140;
    }
    function parseBinaryExpressionRest(precedence, leftOperand) {
        while (true) {
            reScanGreaterToken();
            var newPrecedence = getBinaryOperatorPrecedence();
            var consumeCurrentOperator = token() === 39 ?
                newPrecedence >= precedence :
                newPrecedence > precedence;
            if (!consumeCurrentOperator) {
                break;
            }
            if (token() === 91 && inDisallowInContext()) {
                break;
            }
            if (token() === 117) {
                if (scanner.hasPrecedingLineBreak()) {
                    break;
                }
                else {
                    nextToken();
                    leftOperand = makeAsExpression(leftOperand, parseType());
                }
            }
            else {
                leftOperand = makeBinaryExpression(leftOperand, parseTokenNode(), parseBinaryExpressionOrHigher(newPrecedence));
            }
        }
        return leftOperand;
    }
    function isBinaryOperator() {
        if (inDisallowInContext() && token() === 91) {
            return false;
        }
        return getBinaryOperatorPrecedence() > 0;
    }
    function getBinaryOperatorPrecedence() {
        switch (token()) {
            case 53:
                return 1;
            case 52:
                return 2;
            case 48:
                return 3;
            case 49:
                return 4;
            case 47:
                return 5;
            case 31:
            case 32:
            case 33:
            case 34:
                return 6;
            case 26:
            case 28:
            case 29:
            case 30:
            case 92:
            case 91:
            case 117:
                return 7;
            case 44:
            case 45:
            case 46:
                return 8;
            case 36:
            case 37:
                return 9;
            case 38:
            case 40:
            case 41:
                return 10;
            case 39:
                return 11;
        }
        return -1;
    }
    function makeBinaryExpression(left, operatorToken, right) {
        var node = createNode(192, left.pos);
        node.left = left;
        node.operatorToken = operatorToken;
        node.right = right;
        return finishNode(node);
    }
    function makeAsExpression(left, right) {
        var node = createNode(200, left.pos);
        node.expression = left;
        node.type = right;
        return finishNode(node);
    }
    function parsePrefixUnaryExpression() {
        var node = createNode(190);
        node.operator = token();
        nextToken();
        node.operand = parseSimpleUnaryExpression();
        return finishNode(node);
    }
    function parseDeleteExpression() {
        var node = createNode(186);
        nextToken();
        node.expression = parseSimpleUnaryExpression();
        return finishNode(node);
    }
    function parseTypeOfExpression() {
        var node = createNode(187);
        nextToken();
        node.expression = parseSimpleUnaryExpression();
        return finishNode(node);
    }
    function parseVoidExpression() {
        var node = createNode(188);
        nextToken();
        node.expression = parseSimpleUnaryExpression();
        return finishNode(node);
    }
    function isAwaitExpression() {
        if (token() === 120) {
            if (inAwaitContext()) {
                return true;
            }
            return lookAhead(nextTokenIsIdentifierOnSameLine);
        }
        return false;
    }
    function parseAwaitExpression() {
        var node = createNode(189);
        nextToken();
        node.expression = parseSimpleUnaryExpression();
        return finishNode(node);
    }
    function parseUnaryExpressionOrHigher() {
        if (isUpdateExpression()) {
            var incrementExpression = parseIncrementExpression();
            return token() === 39 ?
                parseBinaryExpressionRest(getBinaryOperatorPrecedence(), incrementExpression) :
                incrementExpression;
        }
        var unaryOperator = token();
        var simpleUnaryExpression = parseSimpleUnaryExpression();
        if (token() === 39) {
            var start = ts.skipTrivia(sourceText, simpleUnaryExpression.pos);
            if (simpleUnaryExpression.kind === 182) {
                parseErrorAtPosition(start, simpleUnaryExpression.end - start, ts.Diagnostics.A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses);
            }
            else {
                parseErrorAtPosition(start, simpleUnaryExpression.end - start, ts.Diagnostics.An_unary_expression_with_the_0_operator_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses, ts.tokenToString(unaryOperator));
            }
        }
        return simpleUnaryExpression;
    }
    function parseSimpleUnaryExpression() {
        switch (token()) {
            case 36:
            case 37:
            case 51:
            case 50:
                return parsePrefixUnaryExpression();
            case 79:
                return parseDeleteExpression();
            case 102:
                return parseTypeOfExpression();
            case 104:
                return parseVoidExpression();
            case 26:
                return parseTypeAssertion();
            case 120:
                if (isAwaitExpression()) {
                    return parseAwaitExpression();
                }
            default:
                return parseIncrementExpression();
        }
    }
    function isUpdateExpression() {
        switch (token()) {
            case 36:
            case 37:
            case 51:
            case 50:
            case 79:
            case 102:
            case 104:
            case 120:
                return false;
            case 26:
                if (sourceFile.languageVariant !== 1) {
                    return false;
                }
            default:
                return true;
        }
    }
    function parseIncrementExpression() {
        if (token() === 42 || token() === 43) {
            var node = createNode(190);
            node.operator = token();
            nextToken();
            node.operand = parseLeftHandSideExpressionOrHigher();
            return finishNode(node);
        }
        else if (sourceFile.languageVariant === 1 && token() === 26 && lookAhead(nextTokenIsIdentifierOrKeyword)) {
            return parseJsxElementOrSelfClosingElement(true);
        }
        var expression = parseLeftHandSideExpressionOrHigher();
        ts.Debug.assert(ts.isLeftHandSideExpression(expression));
        if ((token() === 42 || token() === 43) && !scanner.hasPrecedingLineBreak()) {
            var node = createNode(191, expression.pos);
            node.operand = expression;
            node.operator = token();
            nextToken();
            return finishNode(node);
        }
        return expression;
    }
    function parseLeftHandSideExpressionOrHigher() {
        var expression = token() === 96
            ? parseSuperExpression()
            : parseMemberExpressionOrHigher();
        return parseCallExpressionRest(expression);
    }
    function parseMemberExpressionOrHigher() {
        var expression = parsePrimaryExpression();
        return parseMemberExpressionRest(expression);
    }
    function parseSuperExpression() {
        var expression = parseTokenNode();
        if (token() === 18 || token() === 22 || token() === 20) {
            return expression;
        }
        var node = createNode(177, expression.pos);
        node.expression = expression;
        parseExpectedToken(22, false, ts.Diagnostics.super_must_be_followed_by_an_argument_list_or_member_access);
        node.name = parseRightSideOfDot(true);
        return finishNode(node);
    }
    function tagNamesAreEquivalent(lhs, rhs) {
        if (lhs.kind !== rhs.kind) {
            return false;
        }
        if (lhs.kind === 70) {
            return lhs.text === rhs.text;
        }
        if (lhs.kind === 98) {
            return true;
        }
        return lhs.name.text === rhs.name.text &&
            tagNamesAreEquivalent(lhs.expression, rhs.expression);
    }
    function parseJsxElementOrSelfClosingElement(inExpressionContext) {
        var opening = parseJsxOpeningOrSelfClosingElement(inExpressionContext);
        var result;
        if (opening.kind === 248) {
            var node = createNode(246, opening.pos);
            node.openingElement = opening;
            node.children = parseJsxChildren(node.openingElement.tagName);
            node.closingElement = parseJsxClosingElement(inExpressionContext);
            if (!tagNamesAreEquivalent(node.openingElement.tagName, node.closingElement.tagName)) {
                parseErrorAtPosition(node.closingElement.pos, node.closingElement.end - node.closingElement.pos, ts.Diagnostics.Expected_corresponding_JSX_closing_tag_for_0, ts.getTextOfNodeFromSourceText(sourceText, node.openingElement.tagName));
            }
            result = finishNode(node);
        }
        else {
            ts.Debug.assert(opening.kind === 247);
            result = opening;
        }
        if (inExpressionContext && token() === 26) {
            var invalidElement = tryParse(function () { return parseJsxElementOrSelfClosingElement(true); });
            if (invalidElement) {
                parseErrorAtCurrentToken(ts.Diagnostics.JSX_expressions_must_have_one_parent_element);
                var badNode = createNode(192, result.pos);
                badNode.end = invalidElement.end;
                badNode.left = result;
                badNode.right = invalidElement;
                badNode.operatorToken = createMissingNode(25, false, undefined);
                badNode.operatorToken.pos = badNode.operatorToken.end = badNode.right.pos;
                return badNode;
            }
        }
        return result;
    }
    function parseJsxText() {
        var node = createNode(10, scanner.getStartPos());
        currentToken = scanner.scanJsxToken();
        return finishNode(node);
    }
    function parseJsxChild() {
        switch (token()) {
            case 10:
                return parseJsxText();
            case 16:
                return parseJsxExpression(false);
            case 26:
                return parseJsxElementOrSelfClosingElement(false);
        }
        ts.Debug.fail("Unknown JSX child kind " + token());
    }
    function parseJsxChildren(openingTagName) {
        var result = createNodeArray();
        var saveParsingContext = parsingContext;
        parsingContext |= 1 << 14;
        while (true) {
            currentToken = scanner.reScanJsxToken();
            if (token() === 27) {
                break;
            }
            else if (token() === 1) {
                parseErrorAtPosition(openingTagName.pos, openingTagName.end - openingTagName.pos, ts.Diagnostics.JSX_element_0_has_no_corresponding_closing_tag, ts.getTextOfNodeFromSourceText(sourceText, openingTagName));
                break;
            }
            result.push(parseJsxChild());
        }
        result.end = scanner.getTokenPos();
        parsingContext = saveParsingContext;
        return result;
    }
    function parseJsxOpeningOrSelfClosingElement(inExpressionContext) {
        var fullStart = scanner.getStartPos();
        parseExpected(26);
        var tagName = parseJsxElementName();
        var attributes = parseList(13, parseJsxAttribute);
        var node;
        if (token() === 28) {
            node = createNode(248, fullStart);
            scanJsxText();
        }
        else {
            parseExpected(40);
            if (inExpressionContext) {
                parseExpected(28);
            }
            else {
                parseExpected(28, undefined, false);
                scanJsxText();
            }
            node = createNode(247, fullStart);
        }
        node.tagName = tagName;
        node.attributes = attributes;
        return finishNode(node);
    }
    function parseJsxElementName() {
        scanJsxIdentifier();
        var expression = token() === 98 ?
            parseTokenNode() : parseIdentifierName();
        while (parseOptional(22)) {
            var propertyAccess = createNode(177, expression.pos);
            propertyAccess.expression = expression;
            propertyAccess.name = parseRightSideOfDot(true);
            expression = finishNode(propertyAccess);
        }
        return expression;
    }
    function parseJsxExpression(inExpressionContext) {
        var node = createNode(252);
        parseExpected(16);
        if (token() !== 17) {
            node.expression = parseAssignmentExpressionOrHigher();
        }
        if (inExpressionContext) {
            parseExpected(17);
        }
        else {
            parseExpected(17, undefined, false);
            scanJsxText();
        }
        return finishNode(node);
    }
    function parseJsxAttribute() {
        if (token() === 16) {
            return parseJsxSpreadAttribute();
        }
        scanJsxIdentifier();
        var node = createNode(250);
        node.name = parseIdentifierName();
        if (token() === 57) {
            switch (scanJsxAttributeValue()) {
                case 9:
                    node.initializer = parseLiteralNode();
                    break;
                default:
                    node.initializer = parseJsxExpression(true);
                    break;
            }
        }
        return finishNode(node);
    }
    function parseJsxSpreadAttribute() {
        var node = createNode(251);
        parseExpected(16);
        parseExpected(23);
        node.expression = parseExpression();
        parseExpected(17);
        return finishNode(node);
    }
    function parseJsxClosingElement(inExpressionContext) {
        var node = createNode(249);
        parseExpected(27);
        node.tagName = parseJsxElementName();
        if (inExpressionContext) {
            parseExpected(28);
        }
        else {
            parseExpected(28, undefined, false);
            scanJsxText();
        }
        return finishNode(node);
    }
    function parseTypeAssertion() {
        var node = createNode(182);
        parseExpected(26);
        node.type = parseType();
        parseExpected(28);
        node.expression = parseSimpleUnaryExpression();
        return finishNode(node);
    }
    function parseMemberExpressionRest(expression) {
        while (true) {
            var dotToken = parseOptionalToken(22);
            if (dotToken) {
                var propertyAccess = createNode(177, expression.pos);
                propertyAccess.expression = expression;
                propertyAccess.name = parseRightSideOfDot(true);
                expression = finishNode(propertyAccess);
                continue;
            }
            if (token() === 50 && !scanner.hasPrecedingLineBreak()) {
                nextToken();
                var nonNullExpression = createNode(201, expression.pos);
                nonNullExpression.expression = expression;
                expression = finishNode(nonNullExpression);
                continue;
            }
            if (!inDecoratorContext() && parseOptional(20)) {
                var indexedAccess = createNode(178, expression.pos);
                indexedAccess.expression = expression;
                if (token() !== 21) {
                    indexedAccess.argumentExpression = allowInAnd(parseExpression);
                    if (indexedAccess.argumentExpression.kind === 9 || indexedAccess.argumentExpression.kind === 8) {
                        var literal = indexedAccess.argumentExpression;
                        literal.text = internIdentifier(literal.text);
                    }
                }
                parseExpected(21);
                expression = finishNode(indexedAccess);
                continue;
            }
            if (token() === 12 || token() === 13) {
                var tagExpression = createNode(181, expression.pos);
                tagExpression.tag = expression;
                tagExpression.template = token() === 12
                    ? parseLiteralNode()
                    : parseTemplateExpression();
                expression = finishNode(tagExpression);
                continue;
            }
            return expression;
        }
    }
    function parseCallExpressionRest(expression) {
        while (true) {
            expression = parseMemberExpressionRest(expression);
            if (token() === 26) {
                var typeArguments = tryParse(parseTypeArgumentsInExpression);
                if (!typeArguments) {
                    return expression;
                }
                var callExpr = createNode(179, expression.pos);
                callExpr.expression = expression;
                callExpr.typeArguments = typeArguments;
                callExpr.arguments = parseArgumentList();
                expression = finishNode(callExpr);
                continue;
            }
            else if (token() === 18) {
                var callExpr = createNode(179, expression.pos);
                callExpr.expression = expression;
                callExpr.arguments = parseArgumentList();
                expression = finishNode(callExpr);
                continue;
            }
            return expression;
        }
    }
    function parseArgumentList() {
        parseExpected(18);
        var result = parseDelimitedList(11, parseArgumentExpression);
        parseExpected(19);
        return result;
    }
    function parseTypeArgumentsInExpression() {
        if (!parseOptional(26)) {
            return undefined;
        }
        var typeArguments = parseDelimitedList(19, parseType);
        if (!parseExpected(28)) {
            return undefined;
        }
        return typeArguments && canFollowTypeArgumentsInExpression()
            ? typeArguments
            : undefined;
    }
    function canFollowTypeArgumentsInExpression() {
        switch (token()) {
            case 18:
            case 22:
            case 19:
            case 21:
            case 55:
            case 24:
            case 54:
            case 31:
            case 33:
            case 32:
            case 34:
            case 52:
            case 53:
            case 49:
            case 47:
            case 48:
            case 17:
            case 1:
                return true;
            case 25:
            case 16:
            default:
                return false;
        }
    }
    function parsePrimaryExpression() {
        switch (token()) {
            case 8:
            case 9:
            case 12:
                return parseLiteralNode();
            case 98:
            case 96:
            case 94:
            case 100:
            case 85:
                return parseTokenNode();
            case 18:
                return parseParenthesizedExpression();
            case 20:
                return parseArrayLiteralExpression();
            case 16:
                return parseObjectLiteralExpression();
            case 119:
                if (!lookAhead(nextTokenIsFunctionKeywordOnSameLine)) {
                    break;
                }
                return parseFunctionExpression();
            case 74:
                return parseClassExpression();
            case 88:
                return parseFunctionExpression();
            case 93:
                return parseNewExpression();
            case 40:
            case 62:
                if (reScanSlashToken() === 11) {
                    return parseLiteralNode();
                }
                break;
            case 13:
                return parseTemplateExpression();
        }
        return parseIdentifier(ts.Diagnostics.Expression_expected);
    }
    function parseParenthesizedExpression() {
        var node = createNode(183);
        parseExpected(18);
        node.expression = allowInAnd(parseExpression);
        parseExpected(19);
        return finishNode(node);
    }
    function parseSpreadElement() {
        var node = createNode(196);
        parseExpected(23);
        node.expression = parseAssignmentExpressionOrHigher();
        return finishNode(node);
    }
    function parseArgumentOrArrayLiteralElement() {
        return token() === 23 ? parseSpreadElement() :
            token() === 25 ? createNode(198) :
                parseAssignmentExpressionOrHigher();
    }
    function parseArgumentExpression() {
        return doOutsideOfContext(disallowInAndDecoratorContext, parseArgumentOrArrayLiteralElement);
    }
    function parseArrayLiteralExpression() {
        var node = createNode(175);
        parseExpected(20);
        if (scanner.hasPrecedingLineBreak()) {
            node.multiLine = true;
        }
        node.elements = parseDelimitedList(15, parseArgumentOrArrayLiteralElement);
        parseExpected(21);
        return finishNode(node);
    }
    function tryParseAccessorDeclaration(fullStart, decorators, modifiers) {
        if (parseContextualModifier(124)) {
            return parseAccessorDeclaration(151, fullStart, decorators, modifiers);
        }
        else if (parseContextualModifier(133)) {
            return parseAccessorDeclaration(152, fullStart, decorators, modifiers);
        }
        return undefined;
    }
    function parseObjectLiteralElement() {
        var fullStart = scanner.getStartPos();
        var dotDotDotToken = parseOptionalToken(23);
        if (dotDotDotToken) {
            var spreadElement = createNode(259, fullStart);
            spreadElement.expression = parseAssignmentExpressionOrHigher();
            return addJSDocComment(finishNode(spreadElement));
        }
        var decorators = parseDecorators();
        var modifiers = parseModifiers();
        var accessor = tryParseAccessorDeclaration(fullStart, decorators, modifiers);
        if (accessor) {
            return accessor;
        }
        var asteriskToken = parseOptionalToken(38);
        var tokenIsIdentifier = isIdentifier();
        var propertyName = parsePropertyName();
        var questionToken = parseOptionalToken(54);
        if (asteriskToken || token() === 18 || token() === 26) {
            return parseMethodDeclaration(fullStart, decorators, modifiers, asteriskToken, propertyName, questionToken);
        }
        var isShorthandPropertyAssignment = tokenIsIdentifier && (token() === 25 || token() === 17 || token() === 57);
        if (isShorthandPropertyAssignment) {
            var shorthandDeclaration = createNode(258, fullStart);
            shorthandDeclaration.name = propertyName;
            shorthandDeclaration.questionToken = questionToken;
            var equalsToken = parseOptionalToken(57);
            if (equalsToken) {
                shorthandDeclaration.equalsToken = equalsToken;
                shorthandDeclaration.objectAssignmentInitializer = allowInAnd(parseAssignmentExpressionOrHigher);
            }
            return addJSDocComment(finishNode(shorthandDeclaration));
        }
        else {
            var propertyAssignment = createNode(257, fullStart);
            propertyAssignment.modifiers = modifiers;
            propertyAssignment.name = propertyName;
            propertyAssignment.questionToken = questionToken;
            parseExpected(55);
            propertyAssignment.initializer = allowInAnd(parseAssignmentExpressionOrHigher);
            return addJSDocComment(finishNode(propertyAssignment));
        }
    }
    function parseObjectLiteralExpression() {
        var node = createNode(176);
        parseExpected(16);
        if (scanner.hasPrecedingLineBreak()) {
            node.multiLine = true;
        }
        node.properties = parseDelimitedList(12, parseObjectLiteralElement, true);
        parseExpected(17);
        return finishNode(node);
    }
    function parseFunctionExpression() {
        var saveDecoratorContext = inDecoratorContext();
        if (saveDecoratorContext) {
            setDecoratorContext(false);
        }
        var node = createNode(184);
        node.modifiers = parseModifiers();
        parseExpected(88);
        node.asteriskToken = parseOptionalToken(38);
        var isGenerator = !!node.asteriskToken;
        var isAsync = !!(ts.getModifierFlags(node) & 256);
        node.name =
            isGenerator && isAsync ? doInYieldAndAwaitContext(parseOptionalIdentifier) :
                isGenerator ? doInYieldContext(parseOptionalIdentifier) :
                    isAsync ? doInAwaitContext(parseOptionalIdentifier) :
                        parseOptionalIdentifier();
        fillSignature(55, isGenerator, isAsync, false, node);
        node.body = parseFunctionBlock(isGenerator, isAsync, false);
        if (saveDecoratorContext) {
            setDecoratorContext(true);
        }
        return addJSDocComment(finishNode(node));
    }
    function parseOptionalIdentifier() {
        return isIdentifier() ? parseIdentifier() : undefined;
    }
    function parseNewExpression() {
        var node = createNode(180);
        parseExpected(93);
        node.expression = parseMemberExpressionOrHigher();
        node.typeArguments = tryParse(parseTypeArgumentsInExpression);
        if (node.typeArguments || token() === 18) {
            node.arguments = parseArgumentList();
        }
        return finishNode(node);
    }
    function parseBlock(ignoreMissingOpenBrace, diagnosticMessage) {
        var node = createNode(204);
        if (parseExpected(16, diagnosticMessage) || ignoreMissingOpenBrace) {
            if (scanner.hasPrecedingLineBreak()) {
                node.multiLine = true;
            }
            node.statements = parseList(1, parseStatement);
            parseExpected(17);
        }
        else {
            node.statements = createMissingList();
        }
        return finishNode(node);
    }
    function parseFunctionBlock(allowYield, allowAwait, ignoreMissingOpenBrace, diagnosticMessage) {
        var savedYieldContext = inYieldContext();
        setYieldContext(allowYield);
        var savedAwaitContext = inAwaitContext();
        setAwaitContext(allowAwait);
        var saveDecoratorContext = inDecoratorContext();
        if (saveDecoratorContext) {
            setDecoratorContext(false);
        }
        var block = parseBlock(ignoreMissingOpenBrace, diagnosticMessage);
        if (saveDecoratorContext) {
            setDecoratorContext(true);
        }
        setYieldContext(savedYieldContext);
        setAwaitContext(savedAwaitContext);
        return block;
    }
    function parseEmptyStatement() {
        var node = createNode(206);
        parseExpected(24);
        return finishNode(node);
    }
    function parseIfStatement() {
        var node = createNode(208);
        parseExpected(89);
        parseExpected(18);
        node.expression = allowInAnd(parseExpression);
        parseExpected(19);
        node.thenStatement = parseStatement();
        node.elseStatement = parseOptional(81) ? parseStatement() : undefined;
        return finishNode(node);
    }
    function parseDoStatement() {
        var node = createNode(209);
        parseExpected(80);
        node.statement = parseStatement();
        parseExpected(105);
        parseExpected(18);
        node.expression = allowInAnd(parseExpression);
        parseExpected(19);
        parseOptional(24);
        return finishNode(node);
    }
    function parseWhileStatement() {
        var node = createNode(210);
        parseExpected(105);
        parseExpected(18);
        node.expression = allowInAnd(parseExpression);
        parseExpected(19);
        node.statement = parseStatement();
        return finishNode(node);
    }
    function parseForOrForInOrForOfStatement() {
        var pos = getNodePos();
        parseExpected(87);
        parseExpected(18);
        var initializer = undefined;
        if (token() !== 24) {
            if (token() === 103 || token() === 109 || token() === 75) {
                initializer = parseVariableDeclarationList(true);
            }
            else {
                initializer = disallowInAnd(parseExpression);
            }
        }
        var forOrForInOrForOfStatement;
        if (parseOptional(91)) {
            var forInStatement = createNode(212, pos);
            forInStatement.initializer = initializer;
            forInStatement.expression = allowInAnd(parseExpression);
            parseExpected(19);
            forOrForInOrForOfStatement = forInStatement;
        }
        else if (parseOptional(140)) {
            var forOfStatement = createNode(213, pos);
            forOfStatement.initializer = initializer;
            forOfStatement.expression = allowInAnd(parseAssignmentExpressionOrHigher);
            parseExpected(19);
            forOrForInOrForOfStatement = forOfStatement;
        }
        else {
            var forStatement = createNode(211, pos);
            forStatement.initializer = initializer;
            parseExpected(24);
            if (token() !== 24 && token() !== 19) {
                forStatement.condition = allowInAnd(parseExpression);
            }
            parseExpected(24);
            if (token() !== 19) {
                forStatement.incrementor = allowInAnd(parseExpression);
            }
            parseExpected(19);
            forOrForInOrForOfStatement = forStatement;
        }
        forOrForInOrForOfStatement.statement = parseStatement();
        return finishNode(forOrForInOrForOfStatement);
    }
    function parseBreakOrContinueStatement(kind) {
        var node = createNode(kind);
        parseExpected(kind === 215 ? 71 : 76);
        if (!canParseSemicolon()) {
            node.label = parseIdentifier();
        }
        parseSemicolon();
        return finishNode(node);
    }
    function parseReturnStatement() {
        var node = createNode(216);
        parseExpected(95);
        if (!canParseSemicolon()) {
            node.expression = allowInAnd(parseExpression);
        }
        parseSemicolon();
        return finishNode(node);
    }
    function parseWithStatement() {
        var node = createNode(217);
        parseExpected(106);
        parseExpected(18);
        node.expression = allowInAnd(parseExpression);
        parseExpected(19);
        node.statement = parseStatement();
        return finishNode(node);
    }
    function parseCaseClause() {
        var node = createNode(253);
        parseExpected(72);
        node.expression = allowInAnd(parseExpression);
        parseExpected(55);
        node.statements = parseList(3, parseStatement);
        return finishNode(node);
    }
    function parseDefaultClause() {
        var node = createNode(254);
        parseExpected(78);
        parseExpected(55);
        node.statements = parseList(3, parseStatement);
        return finishNode(node);
    }
    function parseCaseOrDefaultClause() {
        return token() === 72 ? parseCaseClause() : parseDefaultClause();
    }
    function parseSwitchStatement() {
        var node = createNode(218);
        parseExpected(97);
        parseExpected(18);
        node.expression = allowInAnd(parseExpression);
        parseExpected(19);
        var caseBlock = createNode(232, scanner.getStartPos());
        parseExpected(16);
        caseBlock.clauses = parseList(2, parseCaseOrDefaultClause);
        parseExpected(17);
        node.caseBlock = finishNode(caseBlock);
        return finishNode(node);
    }
    function parseThrowStatement() {
        var node = createNode(220);
        parseExpected(99);
        node.expression = scanner.hasPrecedingLineBreak() ? undefined : allowInAnd(parseExpression);
        parseSemicolon();
        return finishNode(node);
    }
    function parseTryStatement() {
        var node = createNode(221);
        parseExpected(101);
        node.tryBlock = parseBlock(false);
        node.catchClause = token() === 73 ? parseCatchClause() : undefined;
        if (!node.catchClause || token() === 86) {
            parseExpected(86);
            node.finallyBlock = parseBlock(false);
        }
        return finishNode(node);
    }
    function parseCatchClause() {
        var result = createNode(256);
        parseExpected(73);
        if (parseExpected(18)) {
            result.variableDeclaration = parseVariableDeclaration();
        }
        parseExpected(19);
        result.block = parseBlock(false);
        return finishNode(result);
    }
    function parseDebuggerStatement() {
        var node = createNode(222);
        parseExpected(77);
        parseSemicolon();
        return finishNode(node);
    }
    function parseExpressionOrLabeledStatement() {
        var fullStart = scanner.getStartPos();
        var expression = allowInAnd(parseExpression);
        if (expression.kind === 70 && parseOptional(55)) {
            var labeledStatement = createNode(219, fullStart);
            labeledStatement.label = expression;
            labeledStatement.statement = parseStatement();
            return addJSDocComment(finishNode(labeledStatement));
        }
        else {
            var expressionStatement = createNode(207, fullStart);
            expressionStatement.expression = expression;
            parseSemicolon();
            return addJSDocComment(finishNode(expressionStatement));
        }
    }
    function nextTokenIsIdentifierOrKeywordOnSameLine() {
        nextToken();
        return ts.tokenIsIdentifierOrKeyword(token()) && !scanner.hasPrecedingLineBreak();
    }
    function nextTokenIsFunctionKeywordOnSameLine() {
        nextToken();
        return token() === 88 && !scanner.hasPrecedingLineBreak();
    }
    function nextTokenIsIdentifierOrKeywordOrNumberOnSameLine() {
        nextToken();
        return (ts.tokenIsIdentifierOrKeyword(token()) || token() === 8) && !scanner.hasPrecedingLineBreak();
    }
    function isDeclaration() {
        while (true) {
            switch (token()) {
                case 103:
                case 109:
                case 75:
                case 88:
                case 74:
                case 82:
                    return true;
                case 108:
                case 136:
                    return nextTokenIsIdentifierOnSameLine();
                case 127:
                case 128:
                    return nextTokenIsIdentifierOrStringLiteralOnSameLine();
                case 116:
                case 119:
                case 123:
                case 111:
                case 112:
                case 113:
                case 130:
                    nextToken();
                    if (scanner.hasPrecedingLineBreak()) {
                        return false;
                    }
                    continue;
                case 139:
                    nextToken();
                    return token() === 16 || token() === 70 || token() === 83;
                case 90:
                    nextToken();
                    return token() === 9 || token() === 38 ||
                        token() === 16 || ts.tokenIsIdentifierOrKeyword(token());
                case 83:
                    nextToken();
                    if (token() === 57 || token() === 38 ||
                        token() === 16 || token() === 78 ||
                        token() === 117) {
                        return true;
                    }
                    continue;
                case 114:
                    nextToken();
                    continue;
                default:
                    return false;
            }
        }
    }
    function isStartOfDeclaration() {
        return lookAhead(isDeclaration);
    }
    function isStartOfStatement() {
        switch (token()) {
            case 56:
            case 24:
            case 16:
            case 103:
            case 109:
            case 88:
            case 74:
            case 82:
            case 89:
            case 80:
            case 105:
            case 87:
            case 76:
            case 71:
            case 95:
            case 106:
            case 97:
            case 99:
            case 101:
            case 77:
            case 73:
            case 86:
                return true;
            case 75:
            case 83:
            case 90:
                return isStartOfDeclaration();
            case 119:
            case 123:
            case 108:
            case 127:
            case 128:
            case 136:
            case 139:
                return true;
            case 113:
            case 111:
            case 112:
            case 114:
            case 130:
                return isStartOfDeclaration() || !lookAhead(nextTokenIsIdentifierOrKeywordOnSameLine);
            default:
                return isStartOfExpression();
        }
    }
    function nextTokenIsIdentifierOrStartOfDestructuring() {
        nextToken();
        return isIdentifier() || token() === 16 || token() === 20;
    }
    function isLetDeclaration() {
        return lookAhead(nextTokenIsIdentifierOrStartOfDestructuring);
    }
    function parseStatement() {
        switch (token()) {
            case 24:
                return parseEmptyStatement();
            case 16:
                return parseBlock(false);
            case 103:
                return parseVariableStatement(scanner.getStartPos(), undefined, undefined);
            case 109:
                if (isLetDeclaration()) {
                    return parseVariableStatement(scanner.getStartPos(), undefined, undefined);
                }
                break;
            case 88:
                return parseFunctionDeclaration(scanner.getStartPos(), undefined, undefined);
            case 74:
                return parseClassDeclaration(scanner.getStartPos(), undefined, undefined);
            case 89:
                return parseIfStatement();
            case 80:
                return parseDoStatement();
            case 105:
                return parseWhileStatement();
            case 87:
                return parseForOrForInOrForOfStatement();
            case 76:
                return parseBreakOrContinueStatement(214);
            case 71:
                return parseBreakOrContinueStatement(215);
            case 95:
                return parseReturnStatement();
            case 106:
                return parseWithStatement();
            case 97:
                return parseSwitchStatement();
            case 99:
                return parseThrowStatement();
            case 101:
            case 73:
            case 86:
                return parseTryStatement();
            case 77:
                return parseDebuggerStatement();
            case 56:
                return parseDeclaration();
            case 119:
            case 108:
            case 136:
            case 127:
            case 128:
            case 123:
            case 75:
            case 82:
            case 83:
            case 90:
            case 111:
            case 112:
            case 113:
            case 116:
            case 114:
            case 130:
            case 139:
                if (isStartOfDeclaration()) {
                    return parseDeclaration();
                }
                break;
        }
        return parseExpressionOrLabeledStatement();
    }
    function parseDeclaration() {
        var fullStart = getNodePos();
        var decorators = parseDecorators();
        var modifiers = parseModifiers();
        switch (token()) {
            case 103:
            case 109:
            case 75:
                return parseVariableStatement(fullStart, decorators, modifiers);
            case 88:
                return parseFunctionDeclaration(fullStart, decorators, modifiers);
            case 74:
                return parseClassDeclaration(fullStart, decorators, modifiers);
            case 108:
                return parseInterfaceDeclaration(fullStart, decorators, modifiers);
            case 136:
                return parseTypeAliasDeclaration(fullStart, decorators, modifiers);
            case 82:
                return parseEnumDeclaration(fullStart, decorators, modifiers);
            case 139:
            case 127:
            case 128:
                return parseModuleDeclaration(fullStart, decorators, modifiers);
            case 90:
                return parseImportDeclarationOrImportEqualsDeclaration(fullStart, decorators, modifiers);
            case 83:
                nextToken();
                switch (token()) {
                    case 78:
                    case 57:
                        return parseExportAssignment(fullStart, decorators, modifiers);
                    case 117:
                        return parseNamespaceExportDeclaration(fullStart, decorators, modifiers);
                    default:
                        return parseExportDeclaration(fullStart, decorators, modifiers);
                }
            default:
                if (decorators || modifiers) {
                    var node = createMissingNode(244, true, ts.Diagnostics.Declaration_expected);
                    node.pos = fullStart;
                    node.decorators = decorators;
                    node.modifiers = modifiers;
                    return finishNode(node);
                }
        }
    }
    function nextTokenIsIdentifierOrStringLiteralOnSameLine() {
        nextToken();
        return !scanner.hasPrecedingLineBreak() && (isIdentifier() || token() === 9);
    }
    function parseFunctionBlockOrSemicolon(isGenerator, isAsync, diagnosticMessage) {
        if (token() !== 16 && canParseSemicolon()) {
            parseSemicolon();
            return;
        }
        return parseFunctionBlock(isGenerator, isAsync, false, diagnosticMessage);
    }
    function parseArrayBindingElement() {
        if (token() === 25) {
            return createNode(198);
        }
        var node = createNode(174);
        node.dotDotDotToken = parseOptionalToken(23);
        node.name = parseIdentifierOrPattern();
        node.initializer = parseBindingElementInitializer(false);
        return finishNode(node);
    }
    function parseObjectBindingElement() {
        var node = createNode(174);
        node.dotDotDotToken = parseOptionalToken(23);
        var tokenIsIdentifier = isIdentifier();
        var propertyName = parsePropertyName();
        if (tokenIsIdentifier && token() !== 55) {
            node.name = propertyName;
        }
        else {
            parseExpected(55);
            node.propertyName = propertyName;
            node.name = parseIdentifierOrPattern();
        }
        node.initializer = parseBindingElementInitializer(false);
        return finishNode(node);
    }
    function parseObjectBindingPattern() {
        var node = createNode(172);
        parseExpected(16);
        node.elements = parseDelimitedList(9, parseObjectBindingElement);
        parseExpected(17);
        return finishNode(node);
    }
    function parseArrayBindingPattern() {
        var node = createNode(173);
        parseExpected(20);
        node.elements = parseDelimitedList(10, parseArrayBindingElement);
        parseExpected(21);
        return finishNode(node);
    }
    function isIdentifierOrPattern() {
        return token() === 16 || token() === 20 || isIdentifier();
    }
    function parseIdentifierOrPattern() {
        if (token() === 20) {
            return parseArrayBindingPattern();
        }
        if (token() === 16) {
            return parseObjectBindingPattern();
        }
        return parseIdentifier();
    }
    function parseVariableDeclaration() {
        var node = createNode(223);
        node.name = parseIdentifierOrPattern();
        node.type = parseTypeAnnotation();
        if (!isInOrOfKeyword(token())) {
            node.initializer = parseInitializer(false);
        }
        return finishNode(node);
    }
    function parseVariableDeclarationList(inForStatementInitializer) {
        var node = createNode(224);
        switch (token()) {
            case 103:
                break;
            case 109:
                node.flags |= 1;
                break;
            case 75:
                node.flags |= 2;
                break;
            default:
                ts.Debug.fail();
        }
        nextToken();
        if (token() === 140 && lookAhead(canFollowContextualOfKeyword)) {
            node.declarations = createMissingList();
        }
        else {
            var savedDisallowIn = inDisallowInContext();
            setDisallowInContext(inForStatementInitializer);
            node.declarations = parseDelimitedList(8, parseVariableDeclaration);
            setDisallowInContext(savedDisallowIn);
        }
        return finishNode(node);
    }
    function canFollowContextualOfKeyword() {
        return nextTokenIsIdentifier() && nextToken() === 19;
    }
    function parseVariableStatement(fullStart, decorators, modifiers) {
        var node = createNode(205, fullStart);
        node.decorators = decorators;
        node.modifiers = modifiers;
        node.declarationList = parseVariableDeclarationList(false);
        parseSemicolon();
        return addJSDocComment(finishNode(node));
    }
    function parseFunctionDeclaration(fullStart, decorators, modifiers) {
        var node = createNode(225, fullStart);
        node.decorators = decorators;
        node.modifiers = modifiers;
        parseExpected(88);
        node.asteriskToken = parseOptionalToken(38);
        node.name = ts.hasModifier(node, 512) ? parseOptionalIdentifier() : parseIdentifier();
        var isGenerator = !!node.asteriskToken;
        var isAsync = ts.hasModifier(node, 256);
        fillSignature(55, isGenerator, isAsync, false, node);
        node.body = parseFunctionBlockOrSemicolon(isGenerator, isAsync, ts.Diagnostics.or_expected);
        return addJSDocComment(finishNode(node));
    }
    function parseConstructorDeclaration(pos, decorators, modifiers) {
        var node = createNode(150, pos);
        node.decorators = decorators;
        node.modifiers = modifiers;
        parseExpected(122);
        fillSignature(55, false, false, false, node);
        node.body = parseFunctionBlockOrSemicolon(false, false, ts.Diagnostics.or_expected);
        return addJSDocComment(finishNode(node));
    }
    function parseMethodDeclaration(fullStart, decorators, modifiers, asteriskToken, name, questionToken, diagnosticMessage) {
        var method = createNode(149, fullStart);
        method.decorators = decorators;
        method.modifiers = modifiers;
        method.asteriskToken = asteriskToken;
        method.name = name;
        method.questionToken = questionToken;
        var isGenerator = !!asteriskToken;
        var isAsync = ts.hasModifier(method, 256);
        fillSignature(55, isGenerator, isAsync, false, method);
        method.body = parseFunctionBlockOrSemicolon(isGenerator, isAsync, diagnosticMessage);
        return addJSDocComment(finishNode(method));
    }
    function parsePropertyDeclaration(fullStart, decorators, modifiers, name, questionToken) {
        var property = createNode(147, fullStart);
        property.decorators = decorators;
        property.modifiers = modifiers;
        property.name = name;
        property.questionToken = questionToken;
        property.type = parseTypeAnnotation();
        property.initializer = ts.hasModifier(property, 32)
            ? allowInAnd(parseNonParameterInitializer)
            : doOutsideOfContext(4096 | 2048, parseNonParameterInitializer);
        parseSemicolon();
        return addJSDocComment(finishNode(property));
    }
    function parsePropertyOrMethodDeclaration(fullStart, decorators, modifiers) {
        var asteriskToken = parseOptionalToken(38);
        var name = parsePropertyName();
        var questionToken = parseOptionalToken(54);
        if (asteriskToken || token() === 18 || token() === 26) {
            return parseMethodDeclaration(fullStart, decorators, modifiers, asteriskToken, name, questionToken, ts.Diagnostics.or_expected);
        }
        else {
            return parsePropertyDeclaration(fullStart, decorators, modifiers, name, questionToken);
        }
    }
    function parseNonParameterInitializer() {
        return parseInitializer(false);
    }
    function parseAccessorDeclaration(kind, fullStart, decorators, modifiers) {
        var node = createNode(kind, fullStart);
        node.decorators = decorators;
        node.modifiers = modifiers;
        node.name = parsePropertyName();
        fillSignature(55, false, false, false, node);
        node.body = parseFunctionBlockOrSemicolon(false, false);
        return addJSDocComment(finishNode(node));
    }
    function isClassMemberModifier(idToken) {
        switch (idToken) {
            case 113:
            case 111:
            case 112:
            case 114:
            case 130:
                return true;
            default:
                return false;
        }
    }
    function isClassMemberStart() {
        var idToken;
        if (token() === 56) {
            return true;
        }
        while (ts.isModifierKind(token())) {
            idToken = token();
            if (isClassMemberModifier(idToken)) {
                return true;
            }
            nextToken();
        }
        if (token() === 38) {
            return true;
        }
        if (isLiteralPropertyName()) {
            idToken = token();
            nextToken();
        }
        if (token() === 20) {
            return true;
        }
        if (idToken !== undefined) {
            if (!ts.isKeyword(idToken) || idToken === 133 || idToken === 124) {
                return true;
            }
            switch (token()) {
                case 18:
                case 26:
                case 55:
                case 57:
                case 54:
                    return true;
                default:
                    return canParseSemicolon();
            }
        }
        return false;
    }
    function parseDecorators() {
        var decorators;
        while (true) {
            var decoratorStart = getNodePos();
            if (!parseOptional(56)) {
                break;
            }
            var decorator = createNode(145, decoratorStart);
            decorator.expression = doInDecoratorContext(parseLeftHandSideExpressionOrHigher);
            finishNode(decorator);
            if (!decorators) {
                decorators = createNodeArray([decorator], decoratorStart);
            }
            else {
                decorators.push(decorator);
            }
        }
        if (decorators) {
            decorators.end = getNodeEnd();
        }
        return decorators;
    }
    function parseModifiers(permitInvalidConstAsModifier) {
        var modifiers;
        while (true) {
            var modifierStart = scanner.getStartPos();
            var modifierKind = token();
            if (token() === 75 && permitInvalidConstAsModifier) {
                if (!tryParse(nextTokenIsOnSameLineAndCanFollowModifier)) {
                    break;
                }
            }
            else {
                if (!parseAnyContextualModifier()) {
                    break;
                }
            }
            var modifier = finishNode(createNode(modifierKind, modifierStart));
            if (!modifiers) {
                modifiers = createNodeArray([modifier], modifierStart);
            }
            else {
                modifiers.push(modifier);
            }
        }
        if (modifiers) {
            modifiers.end = scanner.getStartPos();
        }
        return modifiers;
    }
    function parseModifiersForArrowFunction() {
        var modifiers;
        if (token() === 119) {
            var modifierStart = scanner.getStartPos();
            var modifierKind = token();
            nextToken();
            var modifier = finishNode(createNode(modifierKind, modifierStart));
            modifiers = createNodeArray([modifier], modifierStart);
            modifiers.end = scanner.getStartPos();
        }
        return modifiers;
    }
    function parseClassElement() {
        if (token() === 24) {
            var result = createNode(203);
            nextToken();
            return finishNode(result);
        }
        var fullStart = getNodePos();
        var decorators = parseDecorators();
        var modifiers = parseModifiers(true);
        var accessor = tryParseAccessorDeclaration(fullStart, decorators, modifiers);
        if (accessor) {
            return accessor;
        }
        if (token() === 122) {
            return parseConstructorDeclaration(fullStart, decorators, modifiers);
        }
        if (isIndexSignature()) {
            return parseIndexSignatureDeclaration(fullStart, decorators, modifiers);
        }
        if (ts.tokenIsIdentifierOrKeyword(token()) ||
            token() === 9 ||
            token() === 8 ||
            token() === 38 ||
            token() === 20) {
            return parsePropertyOrMethodDeclaration(fullStart, decorators, modifiers);
        }
        if (decorators || modifiers) {
            var name_13 = createMissingNode(70, true, ts.Diagnostics.Declaration_expected);
            return parsePropertyDeclaration(fullStart, decorators, modifiers, name_13, undefined);
        }
        ts.Debug.fail("Should not have attempted to parse class member declaration.");
    }
    function parseClassExpression() {
        return parseClassDeclarationOrExpression(scanner.getStartPos(), undefined, undefined, 197);
    }
    function parseClassDeclaration(fullStart, decorators, modifiers) {
        return parseClassDeclarationOrExpression(fullStart, decorators, modifiers, 226);
    }
    function parseClassDeclarationOrExpression(fullStart, decorators, modifiers, kind) {
        var node = createNode(kind, fullStart);
        node.decorators = decorators;
        node.modifiers = modifiers;
        parseExpected(74);
        node.name = parseNameOfClassDeclarationOrExpression();
        node.typeParameters = parseTypeParameters();
        node.heritageClauses = parseHeritageClauses();
        if (parseExpected(16)) {
            node.members = parseClassMembers();
            parseExpected(17);
        }
        else {
            node.members = createMissingList();
        }
        return addJSDocComment(finishNode(node));
    }
    function parseNameOfClassDeclarationOrExpression() {
        return isIdentifier() && !isImplementsClause()
            ? parseIdentifier()
            : undefined;
    }
    function isImplementsClause() {
        return token() === 107 && lookAhead(nextTokenIsIdentifierOrKeyword);
    }
    function parseHeritageClauses() {
        if (isHeritageClause()) {
            return parseList(21, parseHeritageClause);
        }
        return undefined;
    }
    function parseHeritageClause() {
        if (token() === 84 || token() === 107) {
            var node = createNode(255);
            node.token = token();
            nextToken();
            node.types = parseDelimitedList(7, parseExpressionWithTypeArguments);
            return finishNode(node);
        }
        return undefined;
    }
    function parseExpressionWithTypeArguments() {
        var node = createNode(199);
        node.expression = parseLeftHandSideExpressionOrHigher();
        if (token() === 26) {
            node.typeArguments = parseBracketedList(19, parseType, 26, 28);
        }
        return finishNode(node);
    }
    function isHeritageClause() {
        return token() === 84 || token() === 107;
    }
    function parseClassMembers() {
        return parseList(5, parseClassElement);
    }
    function parseInterfaceDeclaration(fullStart, decorators, modifiers) {
        var node = createNode(227, fullStart);
        node.decorators = decorators;
        node.modifiers = modifiers;
        parseExpected(108);
        node.name = parseIdentifier();
        node.typeParameters = parseTypeParameters();
        node.heritageClauses = parseHeritageClauses();
        node.members = parseObjectTypeMembers();
        return addJSDocComment(finishNode(node));
    }
    function parseTypeAliasDeclaration(fullStart, decorators, modifiers) {
        var node = createNode(228, fullStart);
        node.decorators = decorators;
        node.modifiers = modifiers;
        parseExpected(136);
        node.name = parseIdentifier();
        node.typeParameters = parseTypeParameters();
        parseExpected(57);
        node.type = parseType();
        parseSemicolon();
        return addJSDocComment(finishNode(node));
    }
    function parseEnumMember() {
        var node = createNode(260, scanner.getStartPos());
        node.name = parsePropertyName();
        node.initializer = allowInAnd(parseNonParameterInitializer);
        return addJSDocComment(finishNode(node));
    }
    function parseEnumDeclaration(fullStart, decorators, modifiers) {
        var node = createNode(229, fullStart);
        node.decorators = decorators;
        node.modifiers = modifiers;
        parseExpected(82);
        node.name = parseIdentifier();
        if (parseExpected(16)) {
            node.members = parseDelimitedList(6, parseEnumMember);
            parseExpected(17);
        }
        else {
            node.members = createMissingList();
        }
        return addJSDocComment(finishNode(node));
    }
    function parseModuleBlock() {
        var node = createNode(231, scanner.getStartPos());
        if (parseExpected(16)) {
            node.statements = parseList(1, parseStatement);
            parseExpected(17);
        }
        else {
            node.statements = createMissingList();
        }
        return finishNode(node);
    }
    function parseModuleOrNamespaceDeclaration(fullStart, decorators, modifiers, flags) {
        var node = createNode(230, fullStart);
        var namespaceFlag = flags & 16;
        node.decorators = decorators;
        node.modifiers = modifiers;
        node.flags |= flags;
        node.name = parseIdentifier();
        node.body = parseOptional(22)
            ? parseModuleOrNamespaceDeclaration(getNodePos(), undefined, undefined, 4 | namespaceFlag)
            : parseModuleBlock();
        return addJSDocComment(finishNode(node));
    }
    function parseAmbientExternalModuleDeclaration(fullStart, decorators, modifiers) {
        var node = createNode(230, fullStart);
        node.decorators = decorators;
        node.modifiers = modifiers;
        if (token() === 139) {
            node.name = parseIdentifier();
            node.flags |= 512;
        }
        else {
            node.name = parseLiteralNode(true);
        }
        if (token() === 16) {
            node.body = parseModuleBlock();
        }
        else {
            parseSemicolon();
        }
        return finishNode(node);
    }
    function parseModuleDeclaration(fullStart, decorators, modifiers) {
        var flags = 0;
        if (token() === 139) {
            return parseAmbientExternalModuleDeclaration(fullStart, decorators, modifiers);
        }
        else if (parseOptional(128)) {
            flags |= 16;
        }
        else {
            parseExpected(127);
            if (token() === 9) {
                return parseAmbientExternalModuleDeclaration(fullStart, decorators, modifiers);
            }
        }
        return parseModuleOrNamespaceDeclaration(fullStart, decorators, modifiers, flags);
    }
    function isExternalModuleReference() {
        return token() === 131 &&
            lookAhead(nextTokenIsOpenParen);
    }
    function nextTokenIsOpenParen() {
        return nextToken() === 18;
    }
    function nextTokenIsSlash() {
        return nextToken() === 40;
    }
    function parseNamespaceExportDeclaration(fullStart, decorators, modifiers) {
        var exportDeclaration = createNode(233, fullStart);
        exportDeclaration.decorators = decorators;
        exportDeclaration.modifiers = modifiers;
        parseExpected(117);
        parseExpected(128);
        exportDeclaration.name = parseIdentifier();
        parseSemicolon();
        return finishNode(exportDeclaration);
    }
    function parseImportDeclarationOrImportEqualsDeclaration(fullStart, decorators, modifiers) {
        parseExpected(90);
        var afterImportPos = scanner.getStartPos();
        var identifier;
        if (isIdentifier()) {
            identifier = parseIdentifier();
            if (token() !== 25 && token() !== 138) {
                var importEqualsDeclaration = createNode(234, fullStart);
                importEqualsDeclaration.decorators = decorators;
                importEqualsDeclaration.modifiers = modifiers;
                importEqualsDeclaration.name = identifier;
                parseExpected(57);
                importEqualsDeclaration.moduleReference = parseModuleReference();
                parseSemicolon();
                return addJSDocComment(finishNode(importEqualsDeclaration));
            }
        }
        var importDeclaration = createNode(235, fullStart);
        importDeclaration.decorators = decorators;
        importDeclaration.modifiers = modifiers;
        if (identifier ||
            token() === 38 ||
            token() === 16) {
            importDeclaration.importClause = parseImportClause(identifier, afterImportPos);
            parseExpected(138);
        }
        importDeclaration.moduleSpecifier = parseModuleSpecifier();
        parseSemicolon();
        return finishNode(importDeclaration);
    }
    function parseImportClause(identifier, fullStart) {
        var importClause = createNode(236, fullStart);
        if (identifier) {
            importClause.name = identifier;
        }
        if (!importClause.name ||
            parseOptional(25)) {
            importClause.namedBindings = token() === 38 ? parseNamespaceImport() : parseNamedImportsOrExports(238);
        }
        return finishNode(importClause);
    }
    function parseModuleReference() {
        return isExternalModuleReference()
            ? parseExternalModuleReference()
            : parseEntityName(false);
    }
    function parseExternalModuleReference() {
        var node = createNode(245);
        parseExpected(131);
        parseExpected(18);
        node.expression = parseModuleSpecifier();
        parseExpected(19);
        return finishNode(node);
    }
    function parseModuleSpecifier() {
        if (token() === 9) {
            var result = parseLiteralNode();
            internIdentifier(result.text);
            return result;
        }
        else {
            return parseExpression();
        }
    }
    function parseNamespaceImport() {
        var namespaceImport = createNode(237);
        parseExpected(38);
        parseExpected(117);
        namespaceImport.name = parseIdentifier();
        return finishNode(namespaceImport);
    }
    function parseNamedImportsOrExports(kind) {
        var node = createNode(kind);
        node.elements = parseBracketedList(22, kind === 238 ? parseImportSpecifier : parseExportSpecifier, 16, 17);
        return finishNode(node);
    }
    function parseExportSpecifier() {
        return parseImportOrExportSpecifier(243);
    }
    function parseImportSpecifier() {
        return parseImportOrExportSpecifier(239);
    }
    function parseImportOrExportSpecifier(kind) {
        var node = createNode(kind);
        var checkIdentifierIsKeyword = ts.isKeyword(token()) && !isIdentifier();
        var checkIdentifierStart = scanner.getTokenPos();
        var checkIdentifierEnd = scanner.getTextPos();
        var identifierName = parseIdentifierName();
        if (token() === 117) {
            node.propertyName = identifierName;
            parseExpected(117);
            checkIdentifierIsKeyword = ts.isKeyword(token()) && !isIdentifier();
            checkIdentifierStart = scanner.getTokenPos();
            checkIdentifierEnd = scanner.getTextPos();
            node.name = parseIdentifierName();
        }
        else {
            node.name = identifierName;
        }
        if (kind === 239 && checkIdentifierIsKeyword) {
            parseErrorAtPosition(checkIdentifierStart, checkIdentifierEnd - checkIdentifierStart, ts.Diagnostics.Identifier_expected);
        }
        return finishNode(node);
    }
    function parseExportDeclaration(fullStart, decorators, modifiers) {
        var node = createNode(241, fullStart);
        node.decorators = decorators;
        node.modifiers = modifiers;
        if (parseOptional(38)) {
            parseExpected(138);
            node.moduleSpecifier = parseModuleSpecifier();
        }
        else {
            node.exportClause = parseNamedImportsOrExports(242);
            if (token() === 138 || (token() === 9 && !scanner.hasPrecedingLineBreak())) {
                parseExpected(138);
                node.moduleSpecifier = parseModuleSpecifier();
            }
        }
        parseSemicolon();
        return finishNode(node);
    }
    function parseExportAssignment(fullStart, decorators, modifiers) {
        var node = createNode(240, fullStart);
        node.decorators = decorators;
        node.modifiers = modifiers;
        if (parseOptional(57)) {
            node.isExportEquals = true;
        }
        else {
            parseExpected(78);
        }
        node.expression = parseAssignmentExpressionOrHigher();
        parseSemicolon();
        return finishNode(node);
    }
    function processReferenceComments(sourceFile) {
        var triviaScanner = ts.createScanner(sourceFile.languageVersion, false, 0, sourceText);
        var referencedFiles = [];
        var typeReferenceDirectives = [];
        var amdDependencies = [];
        var amdModuleName;
        while (true) {
            var kind = triviaScanner.scan();
            if (kind !== 2) {
                if (ts.isTrivia(kind)) {
                    continue;
                }
                else {
                    break;
                }
            }
            var range = { pos: triviaScanner.getTokenPos(), end: triviaScanner.getTextPos(), kind: triviaScanner.getToken() };
            var comment = sourceText.substring(range.pos, range.end);
            var referencePathMatchResult = ts.getFileReferenceFromReferencePath(comment, range);
            if (referencePathMatchResult) {
                var fileReference = referencePathMatchResult.fileReference;
                sourceFile.hasNoDefaultLib = referencePathMatchResult.isNoDefaultLib;
                var diagnosticMessage = referencePathMatchResult.diagnosticMessage;
                if (fileReference) {
                    if (referencePathMatchResult.isTypeReferenceDirective) {
                        typeReferenceDirectives.push(fileReference);
                    }
                    else {
                        referencedFiles.push(fileReference);
                    }
                }
                if (diagnosticMessage) {
                    parseDiagnostics.push(ts.createFileDiagnostic(sourceFile, range.pos, range.end - range.pos, diagnosticMessage));
                }
            }
            else {
                var amdModuleNameRegEx = /^\/\/\/\s*<amd-module\s+name\s*=\s*('|")(.+?)\1/gim;
                var amdModuleNameMatchResult = amdModuleNameRegEx.exec(comment);
                if (amdModuleNameMatchResult) {
                    if (amdModuleName) {
                        parseDiagnostics.push(ts.createFileDiagnostic(sourceFile, range.pos, range.end - range.pos, ts.Diagnostics.An_AMD_module_cannot_have_multiple_name_assignments));
                    }
                    amdModuleName = amdModuleNameMatchResult[2];
                }
                var amdDependencyRegEx = /^\/\/\/\s*<amd-dependency\s/gim;
                var pathRegex = /\spath\s*=\s*('|")(.+?)\1/gim;
                var nameRegex = /\sname\s*=\s*('|")(.+?)\1/gim;
                var amdDependencyMatchResult = amdDependencyRegEx.exec(comment);
                if (amdDependencyMatchResult) {
                    var pathMatchResult = pathRegex.exec(comment);
                    var nameMatchResult = nameRegex.exec(comment);
                    if (pathMatchResult) {
                        var amdDependency = { path: pathMatchResult[2], name: nameMatchResult ? nameMatchResult[2] : undefined };
                        amdDependencies.push(amdDependency);
                    }
                }
            }
        }
        sourceFile.referencedFiles = referencedFiles;
        sourceFile.typeReferenceDirectives = typeReferenceDirectives;
        sourceFile.amdDependencies = amdDependencies;
        sourceFile.moduleName = amdModuleName;
    }
    function setExternalModuleIndicator(sourceFile) {
        sourceFile.externalModuleIndicator = ts.forEach(sourceFile.statements, function (node) {
            return ts.hasModifier(node, 1)
                || node.kind === 234 && node.moduleReference.kind === 245
                || node.kind === 235
                || node.kind === 240
                || node.kind === 241
                ? node
                : undefined;
        });
    }
    var JSDocParser;
    (function (JSDocParser) {
        function isJSDocType() {
            switch (token()) {
                case 38:
                case 54:
                case 18:
                case 20:
                case 50:
                case 16:
                case 88:
                case 23:
                case 93:
                case 98:
                    return true;
            }
            return ts.tokenIsIdentifierOrKeyword(token());
        }
        JSDocParser.isJSDocType = isJSDocType;
        function parseJSDocTypeExpressionForTests(content, start, length) {
            initializeState(content, 5, undefined, 1);
            sourceFile = createSourceFile("file.js", 5, 1);
            scanner.setText(content, start, length);
            currentToken = scanner.scan();
            var jsDocTypeExpression = parseJSDocTypeExpression();
            var diagnostics = parseDiagnostics;
            clearState();
            return jsDocTypeExpression ? { jsDocTypeExpression: jsDocTypeExpression, diagnostics: diagnostics } : undefined;
        }
        JSDocParser.parseJSDocTypeExpressionForTests = parseJSDocTypeExpressionForTests;
        function parseJSDocTypeExpression() {
            var result = createNode(262, scanner.getTokenPos());
            parseExpected(16);
            result.type = parseJSDocTopLevelType();
            parseExpected(17);
            fixupParentReferences(result);
            return finishNode(result);
        }
        JSDocParser.parseJSDocTypeExpression = parseJSDocTypeExpression;
        function parseJSDocTopLevelType() {
            var type = parseJSDocType();
            if (token() === 48) {
                var unionType = createNode(266, type.pos);
                unionType.types = parseJSDocTypeList(type);
                type = finishNode(unionType);
            }
            if (token() === 57) {
                var optionalType = createNode(273, type.pos);
                nextToken();
                optionalType.type = type;
                type = finishNode(optionalType);
            }
            return type;
        }
        function parseJSDocType() {
            var type = parseBasicTypeExpression();
            while (true) {
                if (token() === 20) {
                    var arrayType = createNode(265, type.pos);
                    arrayType.elementType = type;
                    nextToken();
                    parseExpected(21);
                    type = finishNode(arrayType);
                }
                else if (token() === 54) {
                    var nullableType = createNode(268, type.pos);
                    nullableType.type = type;
                    nextToken();
                    type = finishNode(nullableType);
                }
                else if (token() === 50) {
                    var nonNullableType = createNode(269, type.pos);
                    nonNullableType.type = type;
                    nextToken();
                    type = finishNode(nonNullableType);
                }
                else {
                    break;
                }
            }
            return type;
        }
        function parseBasicTypeExpression() {
            switch (token()) {
                case 38:
                    return parseJSDocAllType();
                case 54:
                    return parseJSDocUnknownOrNullableType();
                case 18:
                    return parseJSDocUnionType();
                case 20:
                    return parseJSDocTupleType();
                case 50:
                    return parseJSDocNonNullableType();
                case 16:
                    return parseJSDocRecordType();
                case 88:
                    return parseJSDocFunctionType();
                case 23:
                    return parseJSDocVariadicType();
                case 93:
                    return parseJSDocConstructorType();
                case 98:
                    return parseJSDocThisType();
                case 118:
                case 134:
                case 132:
                case 121:
                case 135:
                case 104:
                case 94:
                case 137:
                case 129:
                    return parseTokenNode();
                case 9:
                case 8:
                case 100:
                case 85:
                    return parseJSDocLiteralType();
            }
            return parseJSDocTypeReference();
        }
        function parseJSDocThisType() {
            var result = createNode(277);
            nextToken();
            parseExpected(55);
            result.type = parseJSDocType();
            return finishNode(result);
        }
        function parseJSDocConstructorType() {
            var result = createNode(276);
            nextToken();
            parseExpected(55);
            result.type = parseJSDocType();
            return finishNode(result);
        }
        function parseJSDocVariadicType() {
            var result = createNode(275);
            nextToken();
            result.type = parseJSDocType();
            return finishNode(result);
        }
        function parseJSDocFunctionType() {
            var result = createNode(274);
            nextToken();
            parseExpected(18);
            result.parameters = parseDelimitedList(23, parseJSDocParameter);
            checkForTrailingComma(result.parameters);
            parseExpected(19);
            if (token() === 55) {
                nextToken();
                result.type = parseJSDocType();
            }
            return finishNode(result);
        }
        function parseJSDocParameter() {
            var parameter = createNode(144);
            parameter.type = parseJSDocType();
            if (parseOptional(57)) {
                parameter.questionToken = createNode(57);
            }
            return finishNode(parameter);
        }
        function parseJSDocTypeReference() {
            var result = createNode(272);
            result.name = parseSimplePropertyName();
            if (token() === 26) {
                result.typeArguments = parseTypeArguments();
            }
            else {
                while (parseOptional(22)) {
                    if (token() === 26) {
                        result.typeArguments = parseTypeArguments();
                        break;
                    }
                    else {
                        result.name = parseQualifiedName(result.name);
                    }
                }
            }
            return finishNode(result);
        }
        function parseTypeArguments() {
            nextToken();
            var typeArguments = parseDelimitedList(24, parseJSDocType);
            checkForTrailingComma(typeArguments);
            checkForEmptyTypeArgumentList(typeArguments);
            parseExpected(28);
            return typeArguments;
        }
        function checkForEmptyTypeArgumentList(typeArguments) {
            if (parseDiagnostics.length === 0 && typeArguments && typeArguments.length === 0) {
                var start = typeArguments.pos - "<".length;
                var end = ts.skipTrivia(sourceText, typeArguments.end) + ">".length;
                return parseErrorAtPosition(start, end - start, ts.Diagnostics.Type_argument_list_cannot_be_empty);
            }
        }
        function parseQualifiedName(left) {
            var result = createNode(141, left.pos);
            result.left = left;
            result.right = parseIdentifierName();
            return finishNode(result);
        }
        function parseJSDocRecordType() {
            var result = createNode(270);
            result.literal = parseTypeLiteral();
            return finishNode(result);
        }
        function parseJSDocNonNullableType() {
            var result = createNode(269);
            nextToken();
            result.type = parseJSDocType();
            return finishNode(result);
        }
        function parseJSDocTupleType() {
            var result = createNode(267);
            nextToken();
            result.types = parseDelimitedList(26, parseJSDocType);
            checkForTrailingComma(result.types);
            parseExpected(21);
            return finishNode(result);
        }
        function checkForTrailingComma(list) {
            if (parseDiagnostics.length === 0 && list.hasTrailingComma) {
                var start = list.end - ",".length;
                parseErrorAtPosition(start, ",".length, ts.Diagnostics.Trailing_comma_not_allowed);
            }
        }
        function parseJSDocUnionType() {
            var result = createNode(266);
            nextToken();
            result.types = parseJSDocTypeList(parseJSDocType());
            parseExpected(19);
            return finishNode(result);
        }
        function parseJSDocTypeList(firstType) {
            ts.Debug.assert(!!firstType);
            var types = createNodeArray([firstType], firstType.pos);
            while (parseOptional(48)) {
                types.push(parseJSDocType());
            }
            types.end = scanner.getStartPos();
            return types;
        }
        function parseJSDocAllType() {
            var result = createNode(263);
            nextToken();
            return finishNode(result);
        }
        function parseJSDocLiteralType() {
            var result = createNode(288);
            result.literal = parseLiteralTypeNode();
            return finishNode(result);
        }
        function parseJSDocUnknownOrNullableType() {
            var pos = scanner.getStartPos();
            nextToken();
            if (token() === 25 ||
                token() === 17 ||
                token() === 19 ||
                token() === 28 ||
                token() === 57 ||
                token() === 48) {
                var result = createNode(264, pos);
                return finishNode(result);
            }
            else {
                var result = createNode(268, pos);
                result.type = parseJSDocType();
                return finishNode(result);
            }
        }
        function parseIsolatedJSDocComment(content, start, length) {
            initializeState(content, 5, undefined, 1);
            sourceFile = { languageVariant: 0, text: content };
            var jsDoc = parseJSDocCommentWorker(start, length);
            var diagnostics = parseDiagnostics;
            clearState();
            return jsDoc ? { jsDoc: jsDoc, diagnostics: diagnostics } : undefined;
        }
        JSDocParser.parseIsolatedJSDocComment = parseIsolatedJSDocComment;
        function parseJSDocComment(parent, start, length) {
            var saveToken = currentToken;
            var saveParseDiagnosticsLength = parseDiagnostics.length;
            var saveParseErrorBeforeNextFinishedNode = parseErrorBeforeNextFinishedNode;
            var comment = parseJSDocCommentWorker(start, length);
            if (comment) {
                comment.parent = parent;
            }
            currentToken = saveToken;
            parseDiagnostics.length = saveParseDiagnosticsLength;
            parseErrorBeforeNextFinishedNode = saveParseErrorBeforeNextFinishedNode;
            return comment;
        }
        JSDocParser.parseJSDocComment = parseJSDocComment;
        function parseJSDocCommentWorker(start, length) {
            var content = sourceText;
            start = start || 0;
            var end = length === undefined ? content.length : start + length;
            length = end - start;
            ts.Debug.assert(start >= 0);
            ts.Debug.assert(start <= end);
            ts.Debug.assert(end <= content.length);
            var tags;
            var comments = [];
            var result;
            if (!isJsDocStart(content, start)) {
                return result;
            }
            scanner.scanRange(start + 3, length - 5, function () {
                var advanceToken = true;
                var state = 1;
                var margin = undefined;
                var indent = start - Math.max(content.lastIndexOf("\n", start), 0) + 4;
                function pushComment(text) {
                    if (!margin) {
                        margin = indent;
                    }
                    comments.push(text);
                    indent += text.length;
                }
                nextJSDocToken();
                while (token() === 5) {
                    nextJSDocToken();
                }
                if (token() === 4) {
                    state = 0;
                    indent = 0;
                    nextJSDocToken();
                }
                while (token() !== 1) {
                    switch (token()) {
                        case 56:
                            if (state === 0 || state === 1) {
                                removeTrailingNewlines(comments);
                                parseTag(indent);
                                state = 0;
                                advanceToken = false;
                                margin = undefined;
                                indent++;
                            }
                            else {
                                pushComment(scanner.getTokenText());
                            }
                            break;
                        case 4:
                            comments.push(scanner.getTokenText());
                            state = 0;
                            indent = 0;
                            break;
                        case 38:
                            var asterisk = scanner.getTokenText();
                            if (state === 1 || state === 2) {
                                state = 2;
                                pushComment(asterisk);
                            }
                            else {
                                state = 1;
                                indent += asterisk.length;
                            }
                            break;
                        case 70:
                            pushComment(scanner.getTokenText());
                            state = 2;
                            break;
                        case 5:
                            var whitespace = scanner.getTokenText();
                            if (state === 2) {
                                comments.push(whitespace);
                            }
                            else if (margin !== undefined && indent + whitespace.length > margin) {
                                comments.push(whitespace.slice(margin - indent - 1));
                            }
                            indent += whitespace.length;
                            break;
                        case 1:
                            break;
                        default:
                            state = 2;
                            pushComment(scanner.getTokenText());
                            break;
                    }
                    if (advanceToken) {
                        nextJSDocToken();
                    }
                    else {
                        advanceToken = true;
                    }
                }
                removeLeadingNewlines(comments);
                removeTrailingNewlines(comments);
                result = createJSDocComment();
            });
            return result;
            function removeLeadingNewlines(comments) {
                while (comments.length && (comments[0] === "\n" || comments[0] === "\r")) {
                    comments.shift();
                }
            }
            function removeTrailingNewlines(comments) {
                while (comments.length && (comments[comments.length - 1] === "\n" || comments[comments.length - 1] === "\r")) {
                    comments.pop();
                }
            }
            function isJsDocStart(content, start) {
                return content.charCodeAt(start) === 47 &&
                    content.charCodeAt(start + 1) === 42 &&
                    content.charCodeAt(start + 2) === 42 &&
                    content.charCodeAt(start + 3) !== 42;
            }
            function createJSDocComment() {
                var result = createNode(278, start);
                result.tags = tags;
                result.comment = comments.length ? comments.join("") : undefined;
                return finishNode(result, end);
            }
            function skipWhitespace() {
                while (token() === 5 || token() === 4) {
                    nextJSDocToken();
                }
            }
            function parseTag(indent) {
                ts.Debug.assert(token() === 56);
                var atToken = createNode(56, scanner.getTokenPos());
                atToken.end = scanner.getTextPos();
                nextJSDocToken();
                var tagName = parseJSDocIdentifierName();
                skipWhitespace();
                if (!tagName) {
                    return;
                }
                var tag;
                if (tagName) {
                    switch (tagName.text) {
                        case "augments":
                            tag = parseAugmentsTag(atToken, tagName);
                            break;
                        case "param":
                            tag = parseParamTag(atToken, tagName);
                            break;
                        case "return":
                        case "returns":
                            tag = parseReturnTag(atToken, tagName);
                            break;
                        case "template":
                            tag = parseTemplateTag(atToken, tagName);
                            break;
                        case "type":
                            tag = parseTypeTag(atToken, tagName);
                            break;
                        case "typedef":
                            tag = parseTypedefTag(atToken, tagName);
                            break;
                        default:
                            tag = parseUnknownTag(atToken, tagName);
                            break;
                    }
                }
                else {
                    tag = parseUnknownTag(atToken, tagName);
                }
                if (!tag) {
                    return;
                }
                addTag(tag, parseTagComments(indent + tag.end - tag.pos));
            }
            function parseTagComments(indent) {
                var comments = [];
                var state = 0;
                var margin;
                function pushComment(text) {
                    if (!margin) {
                        margin = indent;
                    }
                    comments.push(text);
                    indent += text.length;
                }
                while (token() !== 56 && token() !== 1) {
                    switch (token()) {
                        case 4:
                            if (state >= 1) {
                                state = 0;
                                comments.push(scanner.getTokenText());
                            }
                            indent = 0;
                            break;
                        case 56:
                            break;
                        case 5:
                            if (state === 2) {
                                pushComment(scanner.getTokenText());
                            }
                            else {
                                var whitespace = scanner.getTokenText();
                                if (margin !== undefined && indent + whitespace.length > margin) {
                                    comments.push(whitespace.slice(margin - indent - 1));
                                }
                                indent += whitespace.length;
                            }
                            break;
                        case 38:
                            if (state === 0) {
                                state = 1;
                                indent += scanner.getTokenText().length;
                                break;
                            }
                        default:
                            state = 2;
                            pushComment(scanner.getTokenText());
                            break;
                    }
                    if (token() === 56) {
                        break;
                    }
                    nextJSDocToken();
                }
                removeLeadingNewlines(comments);
                removeTrailingNewlines(comments);
                return comments;
            }
            function parseUnknownTag(atToken, tagName) {
                var result = createNode(279, atToken.pos);
                result.atToken = atToken;
                result.tagName = tagName;
                return finishNode(result);
            }
            function addTag(tag, comments) {
                tag.comment = comments.join("");
                if (!tags) {
                    tags = createNodeArray([tag], tag.pos);
                }
                else {
                    tags.push(tag);
                }
                tags.end = tag.end;
            }
            function tryParseTypeExpression() {
                return tryParse(function () {
                    skipWhitespace();
                    if (token() !== 16) {
                        return undefined;
                    }
                    return parseJSDocTypeExpression();
                });
            }
            function parseParamTag(atToken, tagName) {
                var typeExpression = tryParseTypeExpression();
                skipWhitespace();
                var name;
                var isBracketed;
                if (parseOptionalToken(20)) {
                    name = parseJSDocIdentifierName();
                    skipWhitespace();
                    isBracketed = true;
                    if (parseOptionalToken(57)) {
                        parseExpression();
                    }
                    parseExpected(21);
                }
                else if (ts.tokenIsIdentifierOrKeyword(token())) {
                    name = parseJSDocIdentifierName();
                }
                if (!name) {
                    parseErrorAtPosition(scanner.getStartPos(), 0, ts.Diagnostics.Identifier_expected);
                    return undefined;
                }
                var preName, postName;
                if (typeExpression) {
                    postName = name;
                }
                else {
                    preName = name;
                }
                if (!typeExpression) {
                    typeExpression = tryParseTypeExpression();
                }
                var result = createNode(281, atToken.pos);
                result.atToken = atToken;
                result.tagName = tagName;
                result.preParameterName = preName;
                result.typeExpression = typeExpression;
                result.postParameterName = postName;
                result.parameterName = postName || preName;
                result.isBracketed = isBracketed;
                return finishNode(result);
            }
            function parseReturnTag(atToken, tagName) {
                if (ts.forEach(tags, function (t) { return t.kind === 282; })) {
                    parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                }
                var result = createNode(282, atToken.pos);
                result.atToken = atToken;
                result.tagName = tagName;
                result.typeExpression = tryParseTypeExpression();
                return finishNode(result);
            }
            function parseTypeTag(atToken, tagName) {
                if (ts.forEach(tags, function (t) { return t.kind === 283; })) {
                    parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                }
                var result = createNode(283, atToken.pos);
                result.atToken = atToken;
                result.tagName = tagName;
                result.typeExpression = tryParseTypeExpression();
                return finishNode(result);
            }
            function parsePropertyTag(atToken, tagName) {
                var typeExpression = tryParseTypeExpression();
                skipWhitespace();
                var name = parseJSDocIdentifierName();
                skipWhitespace();
                if (!name) {
                    parseErrorAtPosition(scanner.getStartPos(), 0, ts.Diagnostics.Identifier_expected);
                    return undefined;
                }
                var result = createNode(286, atToken.pos);
                result.atToken = atToken;
                result.tagName = tagName;
                result.name = name;
                result.typeExpression = typeExpression;
                return finishNode(result);
            }
            function parseAugmentsTag(atToken, tagName) {
                var typeExpression = tryParseTypeExpression();
                var result = createNode(280, atToken.pos);
                result.atToken = atToken;
                result.tagName = tagName;
                result.typeExpression = typeExpression;
                return finishNode(result);
            }
            function parseTypedefTag(atToken, tagName) {
                var typeExpression = tryParseTypeExpression();
                skipWhitespace();
                var typedefTag = createNode(285, atToken.pos);
                typedefTag.atToken = atToken;
                typedefTag.tagName = tagName;
                typedefTag.fullName = parseJSDocTypeNameWithNamespace(0);
                if (typedefTag.fullName) {
                    var rightNode = typedefTag.fullName;
                    while (rightNode.kind !== 70) {
                        rightNode = rightNode.body;
                    }
                    typedefTag.name = rightNode;
                }
                typedefTag.typeExpression = typeExpression;
                skipWhitespace();
                if (typeExpression) {
                    if (typeExpression.type.kind === 272) {
                        var jsDocTypeReference = typeExpression.type;
                        if (jsDocTypeReference.name.kind === 70) {
                            var name_14 = jsDocTypeReference.name;
                            if (name_14.text === "Object") {
                                typedefTag.jsDocTypeLiteral = scanChildTags();
                            }
                        }
                    }
                    if (!typedefTag.jsDocTypeLiteral) {
                        typedefTag.jsDocTypeLiteral = typeExpression.type;
                    }
                }
                else {
                    typedefTag.jsDocTypeLiteral = scanChildTags();
                }
                return finishNode(typedefTag);
                function scanChildTags() {
                    var jsDocTypeLiteral = createNode(287, scanner.getStartPos());
                    var resumePos = scanner.getStartPos();
                    var canParseTag = true;
                    var seenAsterisk = false;
                    var parentTagTerminated = false;
                    while (token() !== 1 && !parentTagTerminated) {
                        nextJSDocToken();
                        switch (token()) {
                            case 56:
                                if (canParseTag) {
                                    parentTagTerminated = !tryParseChildTag(jsDocTypeLiteral);
                                    if (!parentTagTerminated) {
                                        resumePos = scanner.getStartPos();
                                    }
                                }
                                seenAsterisk = false;
                                break;
                            case 4:
                                resumePos = scanner.getStartPos() - 1;
                                canParseTag = true;
                                seenAsterisk = false;
                                break;
                            case 38:
                                if (seenAsterisk) {
                                    canParseTag = false;
                                }
                                seenAsterisk = true;
                                break;
                            case 70:
                                canParseTag = false;
                            case 1:
                                break;
                        }
                    }
                    scanner.setTextPos(resumePos);
                    return finishNode(jsDocTypeLiteral);
                }
                function parseJSDocTypeNameWithNamespace(flags) {
                    var pos = scanner.getTokenPos();
                    var typeNameOrNamespaceName = parseJSDocIdentifierName();
                    if (typeNameOrNamespaceName && parseOptional(22)) {
                        var jsDocNamespaceNode = createNode(230, pos);
                        jsDocNamespaceNode.flags |= flags;
                        jsDocNamespaceNode.name = typeNameOrNamespaceName;
                        jsDocNamespaceNode.body = parseJSDocTypeNameWithNamespace(4);
                        return jsDocNamespaceNode;
                    }
                    if (typeNameOrNamespaceName && flags & 4) {
                        typeNameOrNamespaceName.isInJSDocNamespace = true;
                    }
                    return typeNameOrNamespaceName;
                }
            }
            function tryParseChildTag(parentTag) {
                ts.Debug.assert(token() === 56);
                var atToken = createNode(56, scanner.getStartPos());
                atToken.end = scanner.getTextPos();
                nextJSDocToken();
                var tagName = parseJSDocIdentifierName();
                skipWhitespace();
                if (!tagName) {
                    return false;
                }
                switch (tagName.text) {
                    case "type":
                        if (parentTag.jsDocTypeTag) {
                            return false;
                        }
                        parentTag.jsDocTypeTag = parseTypeTag(atToken, tagName);
                        return true;
                    case "prop":
                    case "property":
                        var propertyTag = parsePropertyTag(atToken, tagName);
                        if (propertyTag) {
                            if (!parentTag.jsDocPropertyTags) {
                                parentTag.jsDocPropertyTags = [];
                            }
                            parentTag.jsDocPropertyTags.push(propertyTag);
                            return true;
                        }
                        return false;
                }
                return false;
            }
            function parseTemplateTag(atToken, tagName) {
                if (ts.forEach(tags, function (t) { return t.kind === 284; })) {
                    parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                }
                var typeParameters = createNodeArray();
                while (true) {
                    var name_15 = parseJSDocIdentifierName();
                    skipWhitespace();
                    if (!name_15) {
                        parseErrorAtPosition(scanner.getStartPos(), 0, ts.Diagnostics.Identifier_expected);
                        return undefined;
                    }
                    var typeParameter = createNode(143, name_15.pos);
                    typeParameter.name = name_15;
                    finishNode(typeParameter);
                    typeParameters.push(typeParameter);
                    if (token() === 25) {
                        nextJSDocToken();
                        skipWhitespace();
                    }
                    else {
                        break;
                    }
                }
                var result = createNode(284, atToken.pos);
                result.atToken = atToken;
                result.tagName = tagName;
                result.typeParameters = typeParameters;
                finishNode(result);
                typeParameters.end = result.end;
                return result;
            }
            function nextJSDocToken() {
                return currentToken = scanner.scanJSDocToken();
            }
            function parseJSDocIdentifierName() {
                return createJSDocIdentifier(ts.tokenIsIdentifierOrKeyword(token()));
            }
            function createJSDocIdentifier(isIdentifier) {
                if (!isIdentifier) {
                    parseErrorAtCurrentToken(ts.Diagnostics.Identifier_expected);
                    return undefined;
                }
                var pos = scanner.getTokenPos();
                var end = scanner.getTextPos();
                var result = createNode(70, pos);
                result.text = content.substring(pos, end);
                finishNode(result, end);
                nextJSDocToken();
                return result;
            }
        }
        JSDocParser.parseJSDocCommentWorker = parseJSDocCommentWorker;
    })(JSDocParser = Parser.JSDocParser || (Parser.JSDocParser = {}));
})(Parser || (Parser = {}));
var IncrementalParser;
(function (IncrementalParser) {
    function updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks) {
        aggressiveChecks = aggressiveChecks || ts.Debug.shouldAssert(2);
        checkChangeRange(sourceFile, newText, textChangeRange, aggressiveChecks);
        if (ts.textChangeRangeIsUnchanged(textChangeRange)) {
            return sourceFile;
        }
        if (sourceFile.statements.length === 0) {
            return Parser.parseSourceFile(sourceFile.fileName, newText, sourceFile.languageVersion, undefined, true, sourceFile.scriptKind);
        }
        var incrementalSourceFile = sourceFile;
        ts.Debug.assert(!incrementalSourceFile.hasBeenIncrementallyParsed);
        incrementalSourceFile.hasBeenIncrementallyParsed = true;
        var oldText = sourceFile.text;
        var syntaxCursor = createSyntaxCursor(sourceFile);
        var changeRange = extendToAffectedRange(sourceFile, textChangeRange);
        checkChangeRange(sourceFile, newText, changeRange, aggressiveChecks);
        ts.Debug.assert(changeRange.span.start <= textChangeRange.span.start);
        ts.Debug.assert(ts.textSpanEnd(changeRange.span) === ts.textSpanEnd(textChangeRange.span));
        ts.Debug.assert(ts.textSpanEnd(ts.textChangeRangeNewSpan(changeRange)) === ts.textSpanEnd(ts.textChangeRangeNewSpan(textChangeRange)));
        var delta = ts.textChangeRangeNewSpan(changeRange).length - changeRange.span.length;
        updateTokenPositionsAndMarkElements(incrementalSourceFile, changeRange.span.start, ts.textSpanEnd(changeRange.span), ts.textSpanEnd(ts.textChangeRangeNewSpan(changeRange)), delta, oldText, newText, aggressiveChecks);
        var result = Parser.parseSourceFile(sourceFile.fileName, newText, sourceFile.languageVersion, syntaxCursor, true, sourceFile.scriptKind);
        return result;
    }
    IncrementalParser.updateSourceFile = updateSourceFile;
    function moveElementEntirelyPastChangeRange(element, isArray, delta, oldText, newText, aggressiveChecks) {
        if (isArray) {
            visitArray(element);
        }
        else {
            visitNode(element);
        }
        return;
        function visitNode(node) {
            var text = "";
            if (aggressiveChecks && shouldCheckNode(node)) {
                text = oldText.substring(node.pos, node.end);
            }
            if (node._children) {
                node._children = undefined;
            }
            node.pos += delta;
            node.end += delta;
            if (aggressiveChecks && shouldCheckNode(node)) {
                ts.Debug.assert(text === newText.substring(node.pos, node.end));
            }
            forEachChild(node, visitNode, visitArray);
            if (node.jsDoc) {
                for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
                    var jsDocComment = _a[_i];
                    forEachChild(jsDocComment, visitNode, visitArray);
                }
            }
            checkNodePositions(node, aggressiveChecks);
        }
        function visitArray(array) {
            array._children = undefined;
            array.pos += delta;
            array.end += delta;
            for (var _i = 0, array_9 = array; _i < array_9.length; _i++) {
                var node = array_9[_i];
                visitNode(node);
            }
        }
    }
    function shouldCheckNode(node) {
        switch (node.kind) {
            case 9:
            case 8:
            case 70:
                return true;
        }
        return false;
    }
    function adjustIntersectingElement(element, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta) {
        ts.Debug.assert(element.end >= changeStart, "Adjusting an element that was entirely before the change range");
        ts.Debug.assert(element.pos <= changeRangeOldEnd, "Adjusting an element that was entirely after the change range");
        ts.Debug.assert(element.pos <= element.end);
        element.pos = Math.min(element.pos, changeRangeNewEnd);
        if (element.end >= changeRangeOldEnd) {
            element.end += delta;
        }
        else {
            element.end = Math.min(element.end, changeRangeNewEnd);
        }
        ts.Debug.assert(element.pos <= element.end);
        if (element.parent) {
            ts.Debug.assert(element.pos >= element.parent.pos);
            ts.Debug.assert(element.end <= element.parent.end);
        }
    }
    function checkNodePositions(node, aggressiveChecks) {
        if (aggressiveChecks) {
            var pos_2 = node.pos;
            forEachChild(node, function (child) {
                ts.Debug.assert(child.pos >= pos_2);
                pos_2 = child.end;
            });
            ts.Debug.assert(pos_2 <= node.end);
        }
    }
    function updateTokenPositionsAndMarkElements(sourceFile, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta, oldText, newText, aggressiveChecks) {
        visitNode(sourceFile);
        return;
        function visitNode(child) {
            ts.Debug.assert(child.pos <= child.end);
            if (child.pos > changeRangeOldEnd) {
                moveElementEntirelyPastChangeRange(child, false, delta, oldText, newText, aggressiveChecks);
                return;
            }
            var fullEnd = child.end;
            if (fullEnd >= changeStart) {
                child.intersectsChange = true;
                child._children = undefined;
                adjustIntersectingElement(child, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta);
                forEachChild(child, visitNode, visitArray);
                checkNodePositions(child, aggressiveChecks);
                return;
            }
            ts.Debug.assert(fullEnd < changeStart);
        }
        function visitArray(array) {
            ts.Debug.assert(array.pos <= array.end);
            if (array.pos > changeRangeOldEnd) {
                moveElementEntirelyPastChangeRange(array, true, delta, oldText, newText, aggressiveChecks);
                return;
            }
            var fullEnd = array.end;
            if (fullEnd >= changeStart) {
                array.intersectsChange = true;
                array._children = undefined;
                adjustIntersectingElement(array, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta);
                for (var _i = 0, array_10 = array; _i < array_10.length; _i++) {
                    var node = array_10[_i];
                    visitNode(node);
                }
                return;
            }
            ts.Debug.assert(fullEnd < changeStart);
        }
    }
    function extendToAffectedRange(sourceFile, changeRange) {
        var maxLookahead = 1;
        var start = changeRange.span.start;
        for (var i = 0; start > 0 && i <= maxLookahead; i++) {
            var nearestNode = findNearestNodeStartingBeforeOrAtPosition(sourceFile, start);
            ts.Debug.assert(nearestNode.pos <= start);
            var position = nearestNode.pos;
            start = Math.max(0, position - 1);
        }
        var finalSpan = ts.createTextSpanFromBounds(start, ts.textSpanEnd(changeRange.span));
        var finalLength = changeRange.newLength + (changeRange.span.start - start);
        return ts.createTextChangeRange(finalSpan, finalLength);
    }
    function findNearestNodeStartingBeforeOrAtPosition(sourceFile, position) {
        var bestResult = sourceFile;
        var lastNodeEntirelyBeforePosition;
        forEachChild(sourceFile, visit);
        if (lastNodeEntirelyBeforePosition) {
            var lastChildOfLastEntireNodeBeforePosition = getLastChild(lastNodeEntirelyBeforePosition);
            if (lastChildOfLastEntireNodeBeforePosition.pos > bestResult.pos) {
                bestResult = lastChildOfLastEntireNodeBeforePosition;
            }
        }
        return bestResult;
        function getLastChild(node) {
            while (true) {
                var lastChild = getLastChildWorker(node);
                if (lastChild) {
                    node = lastChild;
                }
                else {
                    return node;
                }
            }
        }
        function getLastChildWorker(node) {
            var last = undefined;
            forEachChild(node, function (child) {
                if (ts.nodeIsPresent(child)) {
                    last = child;
                }
            });
            return last;
        }
        function visit(child) {
            if (ts.nodeIsMissing(child)) {
                return;
            }
            if (child.pos <= position) {
                if (child.pos >= bestResult.pos) {
                    bestResult = child;
                }
                if (position < child.end) {
                    forEachChild(child, visit);
                    return true;
                }
                else {
                    ts.Debug.assert(child.end <= position);
                    lastNodeEntirelyBeforePosition = child;
                }
            }
            else {
                ts.Debug.assert(child.pos > position);
                return true;
            }
        }
    }
    function checkChangeRange(sourceFile, newText, textChangeRange, aggressiveChecks) {
        var oldText = sourceFile.text;
        if (textChangeRange) {
            ts.Debug.assert((oldText.length - textChangeRange.span.length + textChangeRange.newLength) === newText.length);
            if (aggressiveChecks || ts.Debug.shouldAssert(3)) {
                var oldTextPrefix = oldText.substr(0, textChangeRange.span.start);
                var newTextPrefix = newText.substr(0, textChangeRange.span.start);
                ts.Debug.assert(oldTextPrefix === newTextPrefix);
                var oldTextSuffix = oldText.substring(ts.textSpanEnd(textChangeRange.span), oldText.length);
                var newTextSuffix = newText.substring(ts.textSpanEnd(ts.textChangeRangeNewSpan(textChangeRange)), newText.length);
                ts.Debug.assert(oldTextSuffix === newTextSuffix);
            }
        }
    }
    function createSyntaxCursor(sourceFile) {
        var currentArray = sourceFile.statements;
        var currentArrayIndex = 0;
        ts.Debug.assert(currentArrayIndex < currentArray.length);
        var current = currentArray[currentArrayIndex];
        var lastQueriedPosition = -1;
        return {
            currentNode: function (position) {
                if (position !== lastQueriedPosition) {
                    if (current && current.end === position && currentArrayIndex < (currentArray.length - 1)) {
                        currentArrayIndex++;
                        current = currentArray[currentArrayIndex];
                    }
                    if (!current || current.pos !== position) {
                        findHighestListElementThatStartsAtPosition(position);
                    }
                }
                lastQueriedPosition = position;
                ts.Debug.assert(!current || current.pos === position);
                return current;
            }
        };
        function findHighestListElementThatStartsAtPosition(position) {
            currentArray = undefined;
            currentArrayIndex = -1;
            current = undefined;
            forEachChild(sourceFile, visitNode, visitArray);
            return;
            function visitNode(node) {
                if (position >= node.pos && position < node.end) {
                    forEachChild(node, visitNode, visitArray);
                    return true;
                }
                return false;
            }
            function visitArray(array) {
                if (position >= array.pos && position < array.end) {
                    for (var i = 0, n = array.length; i < n; i++) {
                        var child = array[i];
                        if (child) {
                            if (child.pos === position) {
                                currentArray = array;
                                currentArrayIndex = i;
                                current = child;
                                return true;
                            }
                            else {
                                if (child.pos < position && position < child.end) {
                                    forEachChild(child, visitNode, visitArray);
                                    return true;
                                }
                            }
                        }
                    }
                }
                return false;
            }
        }
    }
})(IncrementalParser || (IncrementalParser = {}));

})(ts || (ts = {})); var ts; (function (ts) {

function getModuleInstanceState(node) {
    if (node.kind === 227 || node.kind === 228) {
        return 0;
    }
    else if (ts.isConstEnumDeclaration(node)) {
        return 2;
    }
    else if ((node.kind === 235 || node.kind === 234) && !(ts.hasModifier(node, 1))) {
        return 0;
    }
    else if (node.kind === 231) {
        var state_1 = 0;
        ts.forEachChild(node, function (n) {
            switch (getModuleInstanceState(n)) {
                case 0:
                    return false;
                case 2:
                    state_1 = 2;
                    return false;
                case 1:
                    state_1 = 1;
                    return true;
            }
        });
        return state_1;
    }
    else if (node.kind === 230) {
        var body = node.body;
        return body ? getModuleInstanceState(body) : 1;
    }
    else if (node.kind === 70 && node.isInJSDocNamespace) {
        return 0;
    }
    else {
        return 1;
    }
}
ts.getModuleInstanceState = getModuleInstanceState;
var binder = createBinder();
function bindSourceFile(file, options) {
    ts.performance.mark("beforeBind");
    binder(file, options);
    ts.performance.mark("afterBind");
    ts.performance.measure("Bind", "beforeBind", "afterBind");
}
ts.bindSourceFile = bindSourceFile;
function createBinder() {
    var file;
    var options;
    var languageVersion;
    var parent;
    var container;
    var blockScopeContainer;
    var lastContainer;
    var seenThisKeyword;
    var currentFlow;
    var currentBreakTarget;
    var currentContinueTarget;
    var currentReturnTarget;
    var currentTrueTarget;
    var currentFalseTarget;
    var preSwitchCaseFlow;
    var activeLabels;
    var hasExplicitReturn;
    var emitFlags;
    var inStrictMode;
    var symbolCount = 0;
    var Symbol;
    var classifiableNames;
    var unreachableFlow = { flags: 1 };
    var reportedUnreachableFlow = { flags: 1 };
    var subtreeTransformFlags = 0;
    var skipTransformFlagAggregation;
    function bindSourceFile(f, opts) {
        file = f;
        options = opts;
        languageVersion = ts.getEmitScriptTarget(options);
        inStrictMode = bindInStrictMode(file, opts);
        classifiableNames = ts.createMap();
        symbolCount = 0;
        skipTransformFlagAggregation = ts.isDeclarationFile(file);
        Symbol = ts.objectAllocator.getSymbolConstructor();
        if (!file.locals) {
            bind(file);
            file.symbolCount = symbolCount;
            file.classifiableNames = classifiableNames;
        }
        file = undefined;
        options = undefined;
        languageVersion = undefined;
        parent = undefined;
        container = undefined;
        blockScopeContainer = undefined;
        lastContainer = undefined;
        seenThisKeyword = false;
        currentFlow = undefined;
        currentBreakTarget = undefined;
        currentContinueTarget = undefined;
        currentReturnTarget = undefined;
        currentTrueTarget = undefined;
        currentFalseTarget = undefined;
        activeLabels = undefined;
        hasExplicitReturn = false;
        emitFlags = 0;
        subtreeTransformFlags = 0;
    }
    return bindSourceFile;
    function bindInStrictMode(file, opts) {
        if (opts.alwaysStrict && !ts.isDeclarationFile(file)) {
            return true;
        }
        else {
            return !!file.externalModuleIndicator;
        }
    }
    function createSymbol(flags, name) {
        symbolCount++;
        return new Symbol(flags, name);
    }
    function addDeclarationToSymbol(symbol, node, symbolFlags) {
        symbol.flags |= symbolFlags;
        node.symbol = symbol;
        if (!symbol.declarations) {
            symbol.declarations = [];
        }
        symbol.declarations.push(node);
        if (symbolFlags & 1952 && !symbol.exports) {
            symbol.exports = ts.createMap();
        }
        if (symbolFlags & 6240 && !symbol.members) {
            symbol.members = ts.createMap();
        }
        if (symbolFlags & 107455) {
            var valueDeclaration = symbol.valueDeclaration;
            if (!valueDeclaration ||
                (valueDeclaration.kind !== node.kind && valueDeclaration.kind === 230)) {
                symbol.valueDeclaration = node;
            }
        }
    }
    function getDeclarationName(node) {
        if (node.name) {
            if (ts.isAmbientModule(node)) {
                return ts.isGlobalScopeAugmentation(node) ? "__global" : "\"" + node.name.text + "\"";
            }
            if (node.name.kind === 142) {
                var nameExpression = node.name.expression;
                if (ts.isStringOrNumericLiteral(nameExpression)) {
                    return nameExpression.text;
                }
                ts.Debug.assert(ts.isWellKnownSymbolSyntactically(nameExpression));
                return ts.getPropertyNameForKnownSymbolName(nameExpression.name.text);
            }
            return node.name.text;
        }
        switch (node.kind) {
            case 150:
                return "__constructor";
            case 158:
            case 153:
                return "__call";
            case 159:
            case 154:
                return "__new";
            case 155:
                return "__index";
            case 241:
                return "__export";
            case 240:
                return node.isExportEquals ? "export=" : "default";
            case 192:
                switch (ts.getSpecialPropertyAssignmentKind(node)) {
                    case 2:
                        return "export=";
                    case 1:
                    case 4:
                        return node.left.name.text;
                    case 3:
                        return node.left.expression.name.text;
                }
                ts.Debug.fail("Unknown binary declaration kind");
                break;
            case 225:
            case 226:
                return ts.hasModifier(node, 512) ? "default" : undefined;
            case 274:
                return ts.isJSDocConstructSignature(node) ? "__new" : "__call";
            case 144:
                ts.Debug.assert(node.parent.kind === 274);
                var functionType = node.parent;
                var index = ts.indexOf(functionType.parameters, node);
                return "arg" + index;
            case 285:
                var parentNode = node.parent && node.parent.parent;
                var nameFromParentNode = void 0;
                if (parentNode && parentNode.kind === 205) {
                    if (parentNode.declarationList.declarations.length > 0) {
                        var nameIdentifier = parentNode.declarationList.declarations[0].name;
                        if (nameIdentifier.kind === 70) {
                            nameFromParentNode = nameIdentifier.text;
                        }
                    }
                }
                return nameFromParentNode;
        }
    }
    function getDisplayName(node) {
        return node.name ? ts.declarationNameToString(node.name) : getDeclarationName(node);
    }
    function declareSymbol(symbolTable, parent, node, includes, excludes) {
        ts.Debug.assert(!ts.hasDynamicName(node));
        var isDefaultExport = ts.hasModifier(node, 512);
        var name = isDefaultExport && parent ? "default" : getDeclarationName(node);
        var symbol;
        if (name === undefined) {
            symbol = createSymbol(0, "__missing");
        }
        else {
            symbol = symbolTable[name] || (symbolTable[name] = createSymbol(0, name));
            if (name && (includes & 788448)) {
                classifiableNames[name] = name;
            }
            if (symbol.flags & excludes) {
                if (symbol.isReplaceableByMethod) {
                    symbol = symbolTable[name] = createSymbol(0, name);
                }
                else {
                    if (node.name) {
                        node.name.parent = node;
                    }
                    var message_1 = symbol.flags & 2
                        ? ts.Diagnostics.Cannot_redeclare_block_scoped_variable_0
                        : ts.Diagnostics.Duplicate_identifier_0;
                    if (symbol.declarations && symbol.declarations.length) {
                        if (isDefaultExport) {
                            message_1 = ts.Diagnostics.A_module_cannot_have_multiple_default_exports;
                        }
                        else {
                            if (symbol.declarations && symbol.declarations.length &&
                                (isDefaultExport || (node.kind === 240 && !node.isExportEquals))) {
                                message_1 = ts.Diagnostics.A_module_cannot_have_multiple_default_exports;
                            }
                        }
                    }
                    ts.forEach(symbol.declarations, function (declaration) {
                        file.bindDiagnostics.push(ts.createDiagnosticForNode(declaration.name || declaration, message_1, getDisplayName(declaration)));
                    });
                    file.bindDiagnostics.push(ts.createDiagnosticForNode(node.name || node, message_1, getDisplayName(node)));
                    symbol = createSymbol(0, name);
                }
            }
        }
        addDeclarationToSymbol(symbol, node, includes);
        symbol.parent = parent;
        return symbol;
    }
    function declareModuleMember(node, symbolFlags, symbolExcludes) {
        var hasExportModifier = ts.getCombinedModifierFlags(node) & 1;
        if (symbolFlags & 8388608) {
            if (node.kind === 243 || (node.kind === 234 && hasExportModifier)) {
                return declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes);
            }
            else {
                return declareSymbol(container.locals, undefined, node, symbolFlags, symbolExcludes);
            }
        }
        else {
            var isJSDocTypedefInJSDocNamespace = node.kind === 285 &&
                node.name &&
                node.name.kind === 70 &&
                node.name.isInJSDocNamespace;
            if ((!ts.isAmbientModule(node) && (hasExportModifier || container.flags & 32)) || isJSDocTypedefInJSDocNamespace) {
                var exportKind = (symbolFlags & 107455 ? 1048576 : 0) |
                    (symbolFlags & 793064 ? 2097152 : 0) |
                    (symbolFlags & 1920 ? 4194304 : 0);
                var local = declareSymbol(container.locals, undefined, node, exportKind, symbolExcludes);
                local.exportSymbol = declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes);
                node.localSymbol = local;
                return local;
            }
            else {
                return declareSymbol(container.locals, undefined, node, symbolFlags, symbolExcludes);
            }
        }
    }
    function bindContainer(node, containerFlags) {
        var saveContainer = container;
        var savedBlockScopeContainer = blockScopeContainer;
        if (containerFlags & 1) {
            container = blockScopeContainer = node;
            if (containerFlags & 32) {
                container.locals = ts.createMap();
            }
            addToContainerChain(container);
        }
        else if (containerFlags & 2) {
            blockScopeContainer = node;
            blockScopeContainer.locals = undefined;
        }
        if (containerFlags & 4) {
            var saveCurrentFlow = currentFlow;
            var saveBreakTarget = currentBreakTarget;
            var saveContinueTarget = currentContinueTarget;
            var saveReturnTarget = currentReturnTarget;
            var saveActiveLabels = activeLabels;
            var saveHasExplicitReturn = hasExplicitReturn;
            var isIIFE = containerFlags & 16 && !ts.hasModifier(node, 256) && !!ts.getImmediatelyInvokedFunctionExpression(node);
            if (isIIFE) {
                currentReturnTarget = createBranchLabel();
            }
            else {
                currentFlow = { flags: 2 };
                if (containerFlags & (16 | 128)) {
                    currentFlow.container = node;
                }
                currentReturnTarget = undefined;
            }
            currentBreakTarget = undefined;
            currentContinueTarget = undefined;
            activeLabels = undefined;
            hasExplicitReturn = false;
            bindChildren(node);
            node.flags &= ~1408;
            if (!(currentFlow.flags & 1) && containerFlags & 8 && ts.nodeIsPresent(node.body)) {
                node.flags |= 128;
                if (hasExplicitReturn)
                    node.flags |= 256;
            }
            if (node.kind === 261) {
                node.flags |= emitFlags;
            }
            if (isIIFE) {
                addAntecedent(currentReturnTarget, currentFlow);
                currentFlow = finishFlowLabel(currentReturnTarget);
            }
            else {
                currentFlow = saveCurrentFlow;
            }
            currentBreakTarget = saveBreakTarget;
            currentContinueTarget = saveContinueTarget;
            currentReturnTarget = saveReturnTarget;
            activeLabels = saveActiveLabels;
            hasExplicitReturn = saveHasExplicitReturn;
        }
        else if (containerFlags & 64) {
            seenThisKeyword = false;
            bindChildren(node);
            node.flags = seenThisKeyword ? node.flags | 64 : node.flags & ~64;
        }
        else {
            bindChildren(node);
        }
        container = saveContainer;
        blockScopeContainer = savedBlockScopeContainer;
    }
    function bindChildren(node) {
        if (skipTransformFlagAggregation) {
            bindChildrenWorker(node);
        }
        else if (node.transformFlags & 536870912) {
            skipTransformFlagAggregation = true;
            bindChildrenWorker(node);
            skipTransformFlagAggregation = false;
            subtreeTransformFlags |= node.transformFlags & ~getTransformFlagsSubtreeExclusions(node.kind);
        }
        else {
            var savedSubtreeTransformFlags = subtreeTransformFlags;
            subtreeTransformFlags = 0;
            bindChildrenWorker(node);
            subtreeTransformFlags = savedSubtreeTransformFlags | computeTransformFlagsForNode(node, subtreeTransformFlags);
        }
    }
    function bindEach(nodes) {
        if (nodes === undefined) {
            return;
        }
        if (skipTransformFlagAggregation) {
            ts.forEach(nodes, bind);
        }
        else {
            var savedSubtreeTransformFlags = subtreeTransformFlags;
            subtreeTransformFlags = 0;
            var nodeArrayFlags = 0;
            for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
                var node = nodes_2[_i];
                bind(node);
                nodeArrayFlags |= node.transformFlags & ~536870912;
            }
            nodes.transformFlags = nodeArrayFlags | 536870912;
            subtreeTransformFlags |= savedSubtreeTransformFlags;
        }
    }
    function bindEachChild(node) {
        ts.forEachChild(node, bind, bindEach);
    }
    function bindChildrenWorker(node) {
        if (ts.isInJavaScriptFile(node) && node.jsDoc) {
            ts.forEach(node.jsDoc, bind);
        }
        if (checkUnreachable(node)) {
            bindEachChild(node);
            return;
        }
        switch (node.kind) {
            case 210:
                bindWhileStatement(node);
                break;
            case 209:
                bindDoStatement(node);
                break;
            case 211:
                bindForStatement(node);
                break;
            case 212:
            case 213:
                bindForInOrForOfStatement(node);
                break;
            case 208:
                bindIfStatement(node);
                break;
            case 216:
            case 220:
                bindReturnOrThrow(node);
                break;
            case 215:
            case 214:
                bindBreakOrContinueStatement(node);
                break;
            case 221:
                bindTryStatement(node);
                break;
            case 218:
                bindSwitchStatement(node);
                break;
            case 232:
                bindCaseBlock(node);
                break;
            case 253:
                bindCaseClause(node);
                break;
            case 219:
                bindLabeledStatement(node);
                break;
            case 190:
                bindPrefixUnaryExpressionFlow(node);
                break;
            case 191:
                bindPostfixUnaryExpressionFlow(node);
                break;
            case 192:
                bindBinaryExpressionFlow(node);
                break;
            case 186:
                bindDeleteExpressionFlow(node);
                break;
            case 193:
                bindConditionalExpressionFlow(node);
                break;
            case 223:
                bindVariableDeclarationFlow(node);
                break;
            case 179:
                bindCallExpressionFlow(node);
                break;
            default:
                bindEachChild(node);
                break;
        }
    }
    function isNarrowingExpression(expr) {
        switch (expr.kind) {
            case 70:
            case 98:
            case 177:
                return isNarrowableReference(expr);
            case 179:
                return hasNarrowableArgument(expr);
            case 183:
                return isNarrowingExpression(expr.expression);
            case 192:
                return isNarrowingBinaryExpression(expr);
            case 190:
                return expr.operator === 50 && isNarrowingExpression(expr.operand);
        }
        return false;
    }
    function isNarrowableReference(expr) {
        return expr.kind === 70 ||
            expr.kind === 98 ||
            expr.kind === 177 && isNarrowableReference(expr.expression);
    }
    function hasNarrowableArgument(expr) {
        if (expr.arguments) {
            for (var _i = 0, _a = expr.arguments; _i < _a.length; _i++) {
                var argument = _a[_i];
                if (isNarrowableReference(argument)) {
                    return true;
                }
            }
        }
        if (expr.expression.kind === 177 &&
            isNarrowableReference(expr.expression.expression)) {
            return true;
        }
        return false;
    }
    function isNarrowingTypeofOperands(expr1, expr2) {
        return expr1.kind === 187 && isNarrowableOperand(expr1.expression) && expr2.kind === 9;
    }
    function isNarrowingBinaryExpression(expr) {
        switch (expr.operatorToken.kind) {
            case 57:
                return isNarrowableReference(expr.left);
            case 31:
            case 32:
            case 33:
            case 34:
                return isNarrowableOperand(expr.left) || isNarrowableOperand(expr.right) ||
                    isNarrowingTypeofOperands(expr.right, expr.left) || isNarrowingTypeofOperands(expr.left, expr.right);
            case 92:
                return isNarrowableOperand(expr.left);
            case 25:
                return isNarrowingExpression(expr.right);
        }
        return false;
    }
    function isNarrowableOperand(expr) {
        switch (expr.kind) {
            case 183:
                return isNarrowableOperand(expr.expression);
            case 192:
                switch (expr.operatorToken.kind) {
                    case 57:
                        return isNarrowableOperand(expr.left);
                    case 25:
                        return isNarrowableOperand(expr.right);
                }
        }
        return isNarrowableReference(expr);
    }
    function createBranchLabel() {
        return {
            flags: 4,
            antecedents: undefined
        };
    }
    function createLoopLabel() {
        return {
            flags: 8,
            antecedents: undefined
        };
    }
    function setFlowNodeReferenced(flow) {
        flow.flags |= flow.flags & 512 ? 1024 : 512;
    }
    function addAntecedent(label, antecedent) {
        if (!(antecedent.flags & 1) && !ts.contains(label.antecedents, antecedent)) {
            (label.antecedents || (label.antecedents = [])).push(antecedent);
            setFlowNodeReferenced(antecedent);
        }
    }
    function createFlowCondition(flags, antecedent, expression) {
        if (antecedent.flags & 1) {
            return antecedent;
        }
        if (!expression) {
            return flags & 32 ? antecedent : unreachableFlow;
        }
        if (expression.kind === 100 && flags & 64 ||
            expression.kind === 85 && flags & 32) {
            return unreachableFlow;
        }
        if (!isNarrowingExpression(expression)) {
            return antecedent;
        }
        setFlowNodeReferenced(antecedent);
        return {
            flags: flags,
            expression: expression,
            antecedent: antecedent
        };
    }
    function createFlowSwitchClause(antecedent, switchStatement, clauseStart, clauseEnd) {
        if (!isNarrowingExpression(switchStatement.expression)) {
            return antecedent;
        }
        setFlowNodeReferenced(antecedent);
        return {
            flags: 128,
            switchStatement: switchStatement,
            clauseStart: clauseStart,
            clauseEnd: clauseEnd,
            antecedent: antecedent
        };
    }
    function createFlowAssignment(antecedent, node) {
        setFlowNodeReferenced(antecedent);
        return {
            flags: 16,
            antecedent: antecedent,
            node: node
        };
    }
    function createFlowArrayMutation(antecedent, node) {
        setFlowNodeReferenced(antecedent);
        return {
            flags: 256,
            antecedent: antecedent,
            node: node
        };
    }
    function finishFlowLabel(flow) {
        var antecedents = flow.antecedents;
        if (!antecedents) {
            return unreachableFlow;
        }
        if (antecedents.length === 1) {
            return antecedents[0];
        }
        return flow;
    }
    function isStatementCondition(node) {
        var parent = node.parent;
        switch (parent.kind) {
            case 208:
            case 210:
            case 209:
                return parent.expression === node;
            case 211:
            case 193:
                return parent.condition === node;
        }
        return false;
    }
    function isLogicalExpression(node) {
        while (true) {
            if (node.kind === 183) {
                node = node.expression;
            }
            else if (node.kind === 190 && node.operator === 50) {
                node = node.operand;
            }
            else {
                return node.kind === 192 && (node.operatorToken.kind === 52 ||
                    node.operatorToken.kind === 53);
            }
        }
    }
    function isTopLevelLogicalExpression(node) {
        while (node.parent.kind === 183 ||
            node.parent.kind === 190 &&
                node.parent.operator === 50) {
            node = node.parent;
        }
        return !isStatementCondition(node) && !isLogicalExpression(node.parent);
    }
    function bindCondition(node, trueTarget, falseTarget) {
        var saveTrueTarget = currentTrueTarget;
        var saveFalseTarget = currentFalseTarget;
        currentTrueTarget = trueTarget;
        currentFalseTarget = falseTarget;
        bind(node);
        currentTrueTarget = saveTrueTarget;
        currentFalseTarget = saveFalseTarget;
        if (!node || !isLogicalExpression(node)) {
            addAntecedent(trueTarget, createFlowCondition(32, currentFlow, node));
            addAntecedent(falseTarget, createFlowCondition(64, currentFlow, node));
        }
    }
    function bindIterativeStatement(node, breakTarget, continueTarget) {
        var saveBreakTarget = currentBreakTarget;
        var saveContinueTarget = currentContinueTarget;
        currentBreakTarget = breakTarget;
        currentContinueTarget = continueTarget;
        bind(node);
        currentBreakTarget = saveBreakTarget;
        currentContinueTarget = saveContinueTarget;
    }
    function bindWhileStatement(node) {
        var preWhileLabel = createLoopLabel();
        var preBodyLabel = createBranchLabel();
        var postWhileLabel = createBranchLabel();
        addAntecedent(preWhileLabel, currentFlow);
        currentFlow = preWhileLabel;
        bindCondition(node.expression, preBodyLabel, postWhileLabel);
        currentFlow = finishFlowLabel(preBodyLabel);
        bindIterativeStatement(node.statement, postWhileLabel, preWhileLabel);
        addAntecedent(preWhileLabel, currentFlow);
        currentFlow = finishFlowLabel(postWhileLabel);
    }
    function bindDoStatement(node) {
        var preDoLabel = createLoopLabel();
        var enclosingLabeledStatement = node.parent.kind === 219
            ? ts.lastOrUndefined(activeLabels)
            : undefined;
        var preConditionLabel = enclosingLabeledStatement ? enclosingLabeledStatement.continueTarget : createBranchLabel();
        var postDoLabel = enclosingLabeledStatement ? enclosingLabeledStatement.breakTarget : createBranchLabel();
        addAntecedent(preDoLabel, currentFlow);
        currentFlow = preDoLabel;
        bindIterativeStatement(node.statement, postDoLabel, preConditionLabel);
        addAntecedent(preConditionLabel, currentFlow);
        currentFlow = finishFlowLabel(preConditionLabel);
        bindCondition(node.expression, preDoLabel, postDoLabel);
        currentFlow = finishFlowLabel(postDoLabel);
    }
    function bindForStatement(node) {
        var preLoopLabel = createLoopLabel();
        var preBodyLabel = createBranchLabel();
        var postLoopLabel = createBranchLabel();
        bind(node.initializer);
        addAntecedent(preLoopLabel, currentFlow);
        currentFlow = preLoopLabel;
        bindCondition(node.condition, preBodyLabel, postLoopLabel);
        currentFlow = finishFlowLabel(preBodyLabel);
        bindIterativeStatement(node.statement, postLoopLabel, preLoopLabel);
        bind(node.incrementor);
        addAntecedent(preLoopLabel, currentFlow);
        currentFlow = finishFlowLabel(postLoopLabel);
    }
    function bindForInOrForOfStatement(node) {
        var preLoopLabel = createLoopLabel();
        var postLoopLabel = createBranchLabel();
        addAntecedent(preLoopLabel, currentFlow);
        currentFlow = preLoopLabel;
        bind(node.expression);
        addAntecedent(postLoopLabel, currentFlow);
        bind(node.initializer);
        if (node.initializer.kind !== 224) {
            bindAssignmentTargetFlow(node.initializer);
        }
        bindIterativeStatement(node.statement, postLoopLabel, preLoopLabel);
        addAntecedent(preLoopLabel, currentFlow);
        currentFlow = finishFlowLabel(postLoopLabel);
    }
    function bindIfStatement(node) {
        var thenLabel = createBranchLabel();
        var elseLabel = createBranchLabel();
        var postIfLabel = createBranchLabel();
        bindCondition(node.expression, thenLabel, elseLabel);
        currentFlow = finishFlowLabel(thenLabel);
        bind(node.thenStatement);
        addAntecedent(postIfLabel, currentFlow);
        currentFlow = finishFlowLabel(elseLabel);
        bind(node.elseStatement);
        addAntecedent(postIfLabel, currentFlow);
        currentFlow = finishFlowLabel(postIfLabel);
    }
    function bindReturnOrThrow(node) {
        bind(node.expression);
        if (node.kind === 216) {
            hasExplicitReturn = true;
            if (currentReturnTarget) {
                addAntecedent(currentReturnTarget, currentFlow);
            }
        }
        currentFlow = unreachableFlow;
    }
    function findActiveLabel(name) {
        if (activeLabels) {
            for (var _i = 0, activeLabels_1 = activeLabels; _i < activeLabels_1.length; _i++) {
                var label = activeLabels_1[_i];
                if (label.name === name) {
                    return label;
                }
            }
        }
        return undefined;
    }
    function bindBreakOrContinueFlow(node, breakTarget, continueTarget) {
        var flowLabel = node.kind === 215 ? breakTarget : continueTarget;
        if (flowLabel) {
            addAntecedent(flowLabel, currentFlow);
            currentFlow = unreachableFlow;
        }
    }
    function bindBreakOrContinueStatement(node) {
        bind(node.label);
        if (node.label) {
            var activeLabel = findActiveLabel(node.label.text);
            if (activeLabel) {
                activeLabel.referenced = true;
                bindBreakOrContinueFlow(node, activeLabel.breakTarget, activeLabel.continueTarget);
            }
        }
        else {
            bindBreakOrContinueFlow(node, currentBreakTarget, currentContinueTarget);
        }
    }
    function bindTryStatement(node) {
        var preFinallyLabel = createBranchLabel();
        var preTryFlow = currentFlow;
        bind(node.tryBlock);
        addAntecedent(preFinallyLabel, currentFlow);
        var flowAfterTry = currentFlow;
        var flowAfterCatch = unreachableFlow;
        if (node.catchClause) {
            currentFlow = preTryFlow;
            bind(node.catchClause);
            addAntecedent(preFinallyLabel, currentFlow);
            flowAfterCatch = currentFlow;
        }
        if (node.finallyBlock) {
            addAntecedent(preFinallyLabel, preTryFlow);
            currentFlow = finishFlowLabel(preFinallyLabel);
            bind(node.finallyBlock);
            if (!(currentFlow.flags & 1)) {
                if ((flowAfterTry.flags & 1) && (flowAfterCatch.flags & 1)) {
                    currentFlow = flowAfterTry === reportedUnreachableFlow || flowAfterCatch === reportedUnreachableFlow
                        ? reportedUnreachableFlow
                        : unreachableFlow;
                }
            }
        }
        else {
            currentFlow = finishFlowLabel(preFinallyLabel);
        }
    }
    function bindSwitchStatement(node) {
        var postSwitchLabel = createBranchLabel();
        bind(node.expression);
        var saveBreakTarget = currentBreakTarget;
        var savePreSwitchCaseFlow = preSwitchCaseFlow;
        currentBreakTarget = postSwitchLabel;
        preSwitchCaseFlow = currentFlow;
        bind(node.caseBlock);
        addAntecedent(postSwitchLabel, currentFlow);
        var hasDefault = ts.forEach(node.caseBlock.clauses, function (c) { return c.kind === 254; });
        node.possiblyExhaustive = !hasDefault && !postSwitchLabel.antecedents;
        if (!hasDefault) {
            addAntecedent(postSwitchLabel, createFlowSwitchClause(preSwitchCaseFlow, node, 0, 0));
        }
        currentBreakTarget = saveBreakTarget;
        preSwitchCaseFlow = savePreSwitchCaseFlow;
        currentFlow = finishFlowLabel(postSwitchLabel);
    }
    function bindCaseBlock(node) {
        var savedSubtreeTransformFlags = subtreeTransformFlags;
        subtreeTransformFlags = 0;
        var clauses = node.clauses;
        var fallthroughFlow = unreachableFlow;
        for (var i = 0; i < clauses.length; i++) {
            var clauseStart = i;
            while (!clauses[i].statements.length && i + 1 < clauses.length) {
                bind(clauses[i]);
                i++;
            }
            var preCaseLabel = createBranchLabel();
            addAntecedent(preCaseLabel, createFlowSwitchClause(preSwitchCaseFlow, node.parent, clauseStart, i + 1));
            addAntecedent(preCaseLabel, fallthroughFlow);
            currentFlow = finishFlowLabel(preCaseLabel);
            var clause = clauses[i];
            bind(clause);
            fallthroughFlow = currentFlow;
            if (!(currentFlow.flags & 1) && i !== clauses.length - 1 && options.noFallthroughCasesInSwitch) {
                errorOnFirstToken(clause, ts.Diagnostics.Fallthrough_case_in_switch);
            }
        }
        clauses.transformFlags = subtreeTransformFlags | 536870912;
        subtreeTransformFlags |= savedSubtreeTransformFlags;
    }
    function bindCaseClause(node) {
        var saveCurrentFlow = currentFlow;
        currentFlow = preSwitchCaseFlow;
        bind(node.expression);
        currentFlow = saveCurrentFlow;
        bindEach(node.statements);
    }
    function pushActiveLabel(name, breakTarget, continueTarget) {
        var activeLabel = {
            name: name,
            breakTarget: breakTarget,
            continueTarget: continueTarget,
            referenced: false
        };
        (activeLabels || (activeLabels = [])).push(activeLabel);
        return activeLabel;
    }
    function popActiveLabel() {
        activeLabels.pop();
    }
    function bindLabeledStatement(node) {
        var preStatementLabel = createLoopLabel();
        var postStatementLabel = createBranchLabel();
        bind(node.label);
        addAntecedent(preStatementLabel, currentFlow);
        var activeLabel = pushActiveLabel(node.label.text, postStatementLabel, preStatementLabel);
        bind(node.statement);
        popActiveLabel();
        if (!activeLabel.referenced && !options.allowUnusedLabels) {
            file.bindDiagnostics.push(ts.createDiagnosticForNode(node.label, ts.Diagnostics.Unused_label));
        }
        if (!node.statement || node.statement.kind !== 209) {
            addAntecedent(postStatementLabel, currentFlow);
            currentFlow = finishFlowLabel(postStatementLabel);
        }
    }
    function bindDestructuringTargetFlow(node) {
        if (node.kind === 192 && node.operatorToken.kind === 57) {
            bindAssignmentTargetFlow(node.left);
        }
        else {
            bindAssignmentTargetFlow(node);
        }
    }
    function bindAssignmentTargetFlow(node) {
        if (isNarrowableReference(node)) {
            currentFlow = createFlowAssignment(currentFlow, node);
        }
        else if (node.kind === 175) {
            for (var _i = 0, _a = node.elements; _i < _a.length; _i++) {
                var e = _a[_i];
                if (e.kind === 196) {
                    bindAssignmentTargetFlow(e.expression);
                }
                else {
                    bindDestructuringTargetFlow(e);
                }
            }
        }
        else if (node.kind === 176) {
            for (var _b = 0, _c = node.properties; _b < _c.length; _b++) {
                var p = _c[_b];
                if (p.kind === 257) {
                    bindDestructuringTargetFlow(p.initializer);
                }
                else if (p.kind === 258) {
                    bindAssignmentTargetFlow(p.name);
                }
                else if (p.kind === 259) {
                    bindAssignmentTargetFlow(p.expression);
                }
            }
        }
    }
    function bindLogicalExpression(node, trueTarget, falseTarget) {
        var preRightLabel = createBranchLabel();
        if (node.operatorToken.kind === 52) {
            bindCondition(node.left, preRightLabel, falseTarget);
        }
        else {
            bindCondition(node.left, trueTarget, preRightLabel);
        }
        currentFlow = finishFlowLabel(preRightLabel);
        bind(node.operatorToken);
        bindCondition(node.right, trueTarget, falseTarget);
    }
    function bindPrefixUnaryExpressionFlow(node) {
        if (node.operator === 50) {
            var saveTrueTarget = currentTrueTarget;
            currentTrueTarget = currentFalseTarget;
            currentFalseTarget = saveTrueTarget;
            bindEachChild(node);
            currentFalseTarget = currentTrueTarget;
            currentTrueTarget = saveTrueTarget;
        }
        else {
            bindEachChild(node);
            if (node.operator === 42 || node.operator === 43) {
                bindAssignmentTargetFlow(node.operand);
            }
        }
    }
    function bindPostfixUnaryExpressionFlow(node) {
        bindEachChild(node);
        if (node.operator === 42 || node.operator === 43) {
            bindAssignmentTargetFlow(node.operand);
        }
    }
    function bindBinaryExpressionFlow(node) {
        var operator = node.operatorToken.kind;
        if (operator === 52 || operator === 53) {
            if (isTopLevelLogicalExpression(node)) {
                var postExpressionLabel = createBranchLabel();
                bindLogicalExpression(node, postExpressionLabel, postExpressionLabel);
                currentFlow = finishFlowLabel(postExpressionLabel);
            }
            else {
                bindLogicalExpression(node, currentTrueTarget, currentFalseTarget);
            }
        }
        else {
            bindEachChild(node);
            if (ts.isAssignmentOperator(operator) && !ts.isAssignmentTarget(node)) {
                bindAssignmentTargetFlow(node.left);
                if (operator === 57 && node.left.kind === 178) {
                    var elementAccess = node.left;
                    if (isNarrowableOperand(elementAccess.expression)) {
                        currentFlow = createFlowArrayMutation(currentFlow, node);
                    }
                }
            }
        }
    }
    function bindDeleteExpressionFlow(node) {
        bindEachChild(node);
        if (node.expression.kind === 177) {
            bindAssignmentTargetFlow(node.expression);
        }
    }
    function bindConditionalExpressionFlow(node) {
        var trueLabel = createBranchLabel();
        var falseLabel = createBranchLabel();
        var postExpressionLabel = createBranchLabel();
        bindCondition(node.condition, trueLabel, falseLabel);
        currentFlow = finishFlowLabel(trueLabel);
        bind(node.questionToken);
        bind(node.whenTrue);
        addAntecedent(postExpressionLabel, currentFlow);
        currentFlow = finishFlowLabel(falseLabel);
        bind(node.colonToken);
        bind(node.whenFalse);
        addAntecedent(postExpressionLabel, currentFlow);
        currentFlow = finishFlowLabel(postExpressionLabel);
    }
    function bindInitializedVariableFlow(node) {
        var name = !ts.isOmittedExpression(node) ? node.name : undefined;
        if (ts.isBindingPattern(name)) {
            for (var _i = 0, _a = name.elements; _i < _a.length; _i++) {
                var child = _a[_i];
                bindInitializedVariableFlow(child);
            }
        }
        else {
            currentFlow = createFlowAssignment(currentFlow, node);
        }
    }
    function bindVariableDeclarationFlow(node) {
        bindEachChild(node);
        if (node.initializer || node.parent.parent.kind === 212 || node.parent.parent.kind === 213) {
            bindInitializedVariableFlow(node);
        }
    }
    function bindCallExpressionFlow(node) {
        var expr = node.expression;
        while (expr.kind === 183) {
            expr = expr.expression;
        }
        if (expr.kind === 184 || expr.kind === 185) {
            bindEach(node.typeArguments);
            bindEach(node.arguments);
            bind(node.expression);
        }
        else {
            bindEachChild(node);
        }
        if (node.expression.kind === 177) {
            var propertyAccess = node.expression;
            if (isNarrowableOperand(propertyAccess.expression) && ts.isPushOrUnshiftIdentifier(propertyAccess.name)) {
                currentFlow = createFlowArrayMutation(currentFlow, node);
            }
        }
    }
    function getContainerFlags(node) {
        switch (node.kind) {
            case 197:
            case 226:
            case 229:
            case 176:
            case 161:
            case 287:
            case 270:
                return 1;
            case 227:
                return 1 | 64;
            case 274:
            case 230:
            case 228:
            case 170:
                return 1 | 32;
            case 261:
                return 1 | 4 | 32;
            case 149:
                if (ts.isObjectLiteralOrClassExpressionMethod(node)) {
                    return 1 | 4 | 32 | 8 | 128;
                }
            case 150:
            case 225:
            case 148:
            case 151:
            case 152:
            case 153:
            case 154:
            case 155:
            case 158:
            case 159:
                return 1 | 4 | 32 | 8;
            case 184:
            case 185:
                return 1 | 4 | 32 | 8 | 16;
            case 231:
                return 4;
            case 147:
                return node.initializer ? 4 : 0;
            case 256:
            case 211:
            case 212:
            case 213:
            case 232:
                return 2;
            case 204:
                return ts.isFunctionLike(node.parent) ? 0 : 2;
        }
        return 0;
    }
    function addToContainerChain(next) {
        if (lastContainer) {
            lastContainer.nextContainer = next;
        }
        lastContainer = next;
    }
    function declareSymbolAndAddToSymbolTable(node, symbolFlags, symbolExcludes) {
        return declareSymbolAndAddToSymbolTableWorker(node, symbolFlags, symbolExcludes);
    }
    function declareSymbolAndAddToSymbolTableWorker(node, symbolFlags, symbolExcludes) {
        switch (container.kind) {
            case 230:
                return declareModuleMember(node, symbolFlags, symbolExcludes);
            case 261:
                return declareSourceFileMember(node, symbolFlags, symbolExcludes);
            case 197:
            case 226:
                return declareClassMember(node, symbolFlags, symbolExcludes);
            case 229:
                return declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes);
            case 161:
            case 176:
            case 227:
            case 270:
            case 287:
                return declareSymbol(container.symbol.members, container.symbol, node, symbolFlags, symbolExcludes);
            case 158:
            case 159:
            case 153:
            case 154:
            case 155:
            case 149:
            case 148:
            case 150:
            case 151:
            case 152:
            case 225:
            case 184:
            case 185:
            case 274:
            case 228:
            case 170:
                return declareSymbol(container.locals, undefined, node, symbolFlags, symbolExcludes);
        }
    }
    function declareClassMember(node, symbolFlags, symbolExcludes) {
        return ts.hasModifier(node, 32)
            ? declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes)
            : declareSymbol(container.symbol.members, container.symbol, node, symbolFlags, symbolExcludes);
    }
    function declareSourceFileMember(node, symbolFlags, symbolExcludes) {
        return ts.isExternalModule(file)
            ? declareModuleMember(node, symbolFlags, symbolExcludes)
            : declareSymbol(file.locals, undefined, node, symbolFlags, symbolExcludes);
    }
    function hasExportDeclarations(node) {
        var body = node.kind === 261 ? node : node.body;
        if (body && (body.kind === 261 || body.kind === 231)) {
            for (var _i = 0, _a = body.statements; _i < _a.length; _i++) {
                var stat = _a[_i];
                if (stat.kind === 241 || stat.kind === 240) {
                    return true;
                }
            }
        }
        return false;
    }
    function setExportContextFlag(node) {
        if (ts.isInAmbientContext(node) && !hasExportDeclarations(node)) {
            node.flags |= 32;
        }
        else {
            node.flags &= ~32;
        }
    }
    function bindModuleDeclaration(node) {
        setExportContextFlag(node);
        if (ts.isAmbientModule(node)) {
            if (ts.hasModifier(node, 1)) {
                errorOnFirstToken(node, ts.Diagnostics.export_modifier_cannot_be_applied_to_ambient_modules_and_module_augmentations_since_they_are_always_visible);
            }
            if (ts.isExternalModuleAugmentation(node)) {
                declareSymbolAndAddToSymbolTable(node, 1024, 0);
            }
            else {
                var pattern = void 0;
                if (node.name.kind === 9) {
                    var text = node.name.text;
                    if (ts.hasZeroOrOneAsteriskCharacter(text)) {
                        pattern = ts.tryParsePattern(text);
                    }
                    else {
                        errorOnFirstToken(node.name, ts.Diagnostics.Pattern_0_can_have_at_most_one_Asterisk_character, text);
                    }
                }
                var symbol = declareSymbolAndAddToSymbolTable(node, 512, 106639);
                if (pattern) {
                    (file.patternAmbientModules || (file.patternAmbientModules = [])).push({ pattern: pattern, symbol: symbol });
                }
            }
        }
        else {
            var state = getModuleInstanceState(node);
            if (state === 0) {
                declareSymbolAndAddToSymbolTable(node, 1024, 0);
            }
            else {
                declareSymbolAndAddToSymbolTable(node, 512, 106639);
                if (node.symbol.flags & (16 | 32 | 256)) {
                    node.symbol.constEnumOnlyModule = false;
                }
                else {
                    var currentModuleIsConstEnumOnly = state === 2;
                    if (node.symbol.constEnumOnlyModule === undefined) {
                        node.symbol.constEnumOnlyModule = currentModuleIsConstEnumOnly;
                    }
                    else {
                        node.symbol.constEnumOnlyModule = node.symbol.constEnumOnlyModule && currentModuleIsConstEnumOnly;
                    }
                }
            }
        }
    }
    function bindFunctionOrConstructorType(node) {
        var symbol = createSymbol(131072, getDeclarationName(node));
        addDeclarationToSymbol(symbol, node, 131072);
        var typeLiteralSymbol = createSymbol(2048, "__type");
        addDeclarationToSymbol(typeLiteralSymbol, node, 2048);
        typeLiteralSymbol.members = ts.createMap();
        typeLiteralSymbol.members[symbol.name] = symbol;
    }
    function bindObjectLiteralExpression(node) {
        if (inStrictMode) {
            var seen = ts.createMap();
            for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
                var prop = _a[_i];
                if (prop.kind === 259 || prop.name.kind !== 70) {
                    continue;
                }
                var identifier = prop.name;
                var currentKind = prop.kind === 257 || prop.kind === 258 || prop.kind === 149
                    ? 1
                    : 2;
                var existingKind = seen[identifier.text];
                if (!existingKind) {
                    seen[identifier.text] = currentKind;
                    continue;
                }
                if (currentKind === 1 && existingKind === 1) {
                    var span_1 = ts.getErrorSpanForNode(file, identifier);
                    file.bindDiagnostics.push(ts.createFileDiagnostic(file, span_1.start, span_1.length, ts.Diagnostics.An_object_literal_cannot_have_multiple_properties_with_the_same_name_in_strict_mode));
                }
            }
        }
        return bindAnonymousDeclaration(node, 4096, "__object");
    }
    function bindAnonymousDeclaration(node, symbolFlags, name) {
        var symbol = createSymbol(symbolFlags, name);
        addDeclarationToSymbol(symbol, node, symbolFlags);
    }
    function bindBlockScopedDeclaration(node, symbolFlags, symbolExcludes) {
        switch (blockScopeContainer.kind) {
            case 230:
                declareModuleMember(node, symbolFlags, symbolExcludes);
                break;
            case 261:
                if (ts.isExternalModule(container)) {
                    declareModuleMember(node, symbolFlags, symbolExcludes);
                    break;
                }
            default:
                if (!blockScopeContainer.locals) {
                    blockScopeContainer.locals = ts.createMap();
                    addToContainerChain(blockScopeContainer);
                }
                declareSymbol(blockScopeContainer.locals, undefined, node, symbolFlags, symbolExcludes);
        }
    }
    function bindBlockScopedVariableDeclaration(node) {
        bindBlockScopedDeclaration(node, 2, 107455);
    }
    function checkStrictModeIdentifier(node) {
        if (inStrictMode &&
            node.originalKeywordKind >= 107 &&
            node.originalKeywordKind <= 115 &&
            !ts.isIdentifierName(node) &&
            !ts.isInAmbientContext(node)) {
            if (!file.parseDiagnostics.length) {
                file.bindDiagnostics.push(ts.createDiagnosticForNode(node, getStrictModeIdentifierMessage(node), ts.declarationNameToString(node)));
            }
        }
    }
    function getStrictModeIdentifierMessage(node) {
        if (ts.getContainingClass(node)) {
            return ts.Diagnostics.Identifier_expected_0_is_a_reserved_word_in_strict_mode_Class_definitions_are_automatically_in_strict_mode;
        }
        if (file.externalModuleIndicator) {
            return ts.Diagnostics.Identifier_expected_0_is_a_reserved_word_in_strict_mode_Modules_are_automatically_in_strict_mode;
        }
        return ts.Diagnostics.Identifier_expected_0_is_a_reserved_word_in_strict_mode;
    }
    function checkStrictModeBinaryExpression(node) {
        if (inStrictMode && ts.isLeftHandSideExpression(node.left) && ts.isAssignmentOperator(node.operatorToken.kind)) {
            checkStrictModeEvalOrArguments(node, node.left);
        }
    }
    function checkStrictModeCatchClause(node) {
        if (inStrictMode && node.variableDeclaration) {
            checkStrictModeEvalOrArguments(node, node.variableDeclaration.name);
        }
    }
    function checkStrictModeDeleteExpression(node) {
        if (inStrictMode && node.expression.kind === 70) {
            var span_2 = ts.getErrorSpanForNode(file, node.expression);
            file.bindDiagnostics.push(ts.createFileDiagnostic(file, span_2.start, span_2.length, ts.Diagnostics.delete_cannot_be_called_on_an_identifier_in_strict_mode));
        }
    }
    function isEvalOrArgumentsIdentifier(node) {
        return node.kind === 70 &&
            (node.text === "eval" || node.text === "arguments");
    }
    function checkStrictModeEvalOrArguments(contextNode, name) {
        if (name && name.kind === 70) {
            var identifier = name;
            if (isEvalOrArgumentsIdentifier(identifier)) {
                var span_3 = ts.getErrorSpanForNode(file, name);
                file.bindDiagnostics.push(ts.createFileDiagnostic(file, span_3.start, span_3.length, getStrictModeEvalOrArgumentsMessage(contextNode), identifier.text));
            }
        }
    }
    function getStrictModeEvalOrArgumentsMessage(node) {
        if (ts.getContainingClass(node)) {
            return ts.Diagnostics.Invalid_use_of_0_Class_definitions_are_automatically_in_strict_mode;
        }
        if (file.externalModuleIndicator) {
            return ts.Diagnostics.Invalid_use_of_0_Modules_are_automatically_in_strict_mode;
        }
        return ts.Diagnostics.Invalid_use_of_0_in_strict_mode;
    }
    function checkStrictModeFunctionName(node) {
        if (inStrictMode) {
            checkStrictModeEvalOrArguments(node, node.name);
        }
    }
    function getStrictModeBlockScopeFunctionDeclarationMessage(node) {
        if (ts.getContainingClass(node)) {
            return ts.Diagnostics.Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Class_definitions_are_automatically_in_strict_mode;
        }
        if (file.externalModuleIndicator) {
            return ts.Diagnostics.Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Modules_are_automatically_in_strict_mode;
        }
        return ts.Diagnostics.Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5;
    }
    function checkStrictModeFunctionDeclaration(node) {
        if (languageVersion < 2) {
            if (blockScopeContainer.kind !== 261 &&
                blockScopeContainer.kind !== 230 &&
                !ts.isFunctionLike(blockScopeContainer)) {
                var errorSpan = ts.getErrorSpanForNode(file, node);
                file.bindDiagnostics.push(ts.createFileDiagnostic(file, errorSpan.start, errorSpan.length, getStrictModeBlockScopeFunctionDeclarationMessage(node)));
            }
        }
    }
    function checkStrictModeNumericLiteral(node) {
        if (inStrictMode && node.isOctalLiteral) {
            file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Octal_literals_are_not_allowed_in_strict_mode));
        }
    }
    function checkStrictModePostfixUnaryExpression(node) {
        if (inStrictMode) {
            checkStrictModeEvalOrArguments(node, node.operand);
        }
    }
    function checkStrictModePrefixUnaryExpression(node) {
        if (inStrictMode) {
            if (node.operator === 42 || node.operator === 43) {
                checkStrictModeEvalOrArguments(node, node.operand);
            }
        }
    }
    function checkStrictModeWithStatement(node) {
        if (inStrictMode) {
            errorOnFirstToken(node, ts.Diagnostics.with_statements_are_not_allowed_in_strict_mode);
        }
    }
    function errorOnFirstToken(node, message, arg0, arg1, arg2) {
        var span = ts.getSpanOfTokenAtPosition(file, node.pos);
        file.bindDiagnostics.push(ts.createFileDiagnostic(file, span.start, span.length, message, arg0, arg1, arg2));
    }
    function getDestructuringParameterName(node) {
        return "__" + ts.indexOf(node.parent.parameters, node);
    }
    function bind(node) {
        if (!node) {
            return;
        }
        node.parent = parent;
        var saveInStrictMode = inStrictMode;
        bindWorker(node);
        if (node.kind > 140) {
            var saveParent = parent;
            parent = node;
            var containerFlags = getContainerFlags(node);
            if (containerFlags === 0) {
                bindChildren(node);
            }
            else {
                bindContainer(node, containerFlags);
            }
            parent = saveParent;
        }
        else if (!skipTransformFlagAggregation && (node.transformFlags & 536870912) === 0) {
            subtreeTransformFlags |= computeTransformFlagsForNode(node, 0);
        }
        inStrictMode = saveInStrictMode;
    }
    function updateStrictModeStatementList(statements) {
        if (!inStrictMode) {
            for (var _i = 0, statements_2 = statements; _i < statements_2.length; _i++) {
                var statement = statements_2[_i];
                if (!ts.isPrologueDirective(statement)) {
                    return;
                }
                if (isUseStrictPrologueDirective(statement)) {
                    inStrictMode = true;
                    return;
                }
            }
        }
    }
    function isUseStrictPrologueDirective(node) {
        var nodeText = ts.getTextOfNodeFromSourceText(file.text, node.expression);
        return nodeText === '"use strict"' || nodeText === "'use strict'";
    }
    function bindWorker(node) {
        switch (node.kind) {
            case 70:
                if (node.isInJSDocNamespace) {
                    var parentNode = node.parent;
                    while (parentNode && parentNode.kind !== 285) {
                        parentNode = parentNode.parent;
                    }
                    bindBlockScopedDeclaration(parentNode, 524288, 793064);
                    break;
                }
            case 98:
                if (currentFlow && (ts.isExpression(node) || parent.kind === 258)) {
                    node.flowNode = currentFlow;
                }
                return checkStrictModeIdentifier(node);
            case 177:
                if (currentFlow && isNarrowableReference(node)) {
                    node.flowNode = currentFlow;
                }
                break;
            case 192:
                if (ts.isInJavaScriptFile(node)) {
                    var specialKind = ts.getSpecialPropertyAssignmentKind(node);
                    switch (specialKind) {
                        case 1:
                            bindExportsPropertyAssignment(node);
                            break;
                        case 2:
                            bindModuleExportsAssignment(node);
                            break;
                        case 3:
                            bindPrototypePropertyAssignment(node);
                            break;
                        case 4:
                            bindThisPropertyAssignment(node);
                            break;
                        case 0:
                            break;
                        default:
                            ts.Debug.fail("Unknown special property assignment kind");
                    }
                }
                return checkStrictModeBinaryExpression(node);
            case 256:
                return checkStrictModeCatchClause(node);
            case 186:
                return checkStrictModeDeleteExpression(node);
            case 8:
                return checkStrictModeNumericLiteral(node);
            case 191:
                return checkStrictModePostfixUnaryExpression(node);
            case 190:
                return checkStrictModePrefixUnaryExpression(node);
            case 217:
                return checkStrictModeWithStatement(node);
            case 167:
                seenThisKeyword = true;
                return;
            case 156:
                return checkTypePredicate(node);
            case 143:
                return declareSymbolAndAddToSymbolTable(node, 262144, 530920);
            case 144:
                return bindParameter(node);
            case 223:
            case 174:
                return bindVariableDeclarationOrBindingElement(node);
            case 147:
            case 146:
            case 271:
                return bindPropertyOrMethodOrAccessor(node, 4 | (node.questionToken ? 536870912 : 0), 0);
            case 286:
                return bindJSDocProperty(node);
            case 257:
            case 258:
                return bindPropertyOrMethodOrAccessor(node, 4, 0);
            case 260:
                return bindPropertyOrMethodOrAccessor(node, 8, 900095);
            case 259:
            case 251:
                var root = container;
                var hasRest = false;
                while (root.parent) {
                    if (root.kind === 176 &&
                        root.parent.kind === 192 &&
                        root.parent.operatorToken.kind === 57 &&
                        root.parent.left === root) {
                        hasRest = true;
                        break;
                    }
                    root = root.parent;
                }
                return;
            case 153:
            case 154:
            case 155:
                return declareSymbolAndAddToSymbolTable(node, 131072, 0);
            case 149:
            case 148:
                return bindPropertyOrMethodOrAccessor(node, 8192 | (node.questionToken ? 536870912 : 0), ts.isObjectLiteralMethod(node) ? 0 : 99263);
            case 225:
                return bindFunctionDeclaration(node);
            case 150:
                return declareSymbolAndAddToSymbolTable(node, 16384, 0);
            case 151:
                return bindPropertyOrMethodOrAccessor(node, 32768, 41919);
            case 152:
                return bindPropertyOrMethodOrAccessor(node, 65536, 74687);
            case 158:
            case 159:
            case 274:
                return bindFunctionOrConstructorType(node);
            case 161:
            case 170:
            case 287:
            case 270:
                return bindAnonymousDeclaration(node, 2048, "__type");
            case 176:
                return bindObjectLiteralExpression(node);
            case 184:
            case 185:
                return bindFunctionExpression(node);
            case 179:
                if (ts.isInJavaScriptFile(node)) {
                    bindCallExpression(node);
                }
                break;
            case 197:
            case 226:
                inStrictMode = true;
                return bindClassLikeDeclaration(node);
            case 227:
                return bindBlockScopedDeclaration(node, 64, 792968);
            case 285:
                if (!node.fullName || node.fullName.kind === 70) {
                    return bindBlockScopedDeclaration(node, 524288, 793064);
                }
                break;
            case 228:
                return bindBlockScopedDeclaration(node, 524288, 793064);
            case 229:
                return bindEnumDeclaration(node);
            case 230:
                return bindModuleDeclaration(node);
            case 234:
            case 237:
            case 239:
            case 243:
                return declareSymbolAndAddToSymbolTable(node, 8388608, 8388608);
            case 233:
                return bindNamespaceExportDeclaration(node);
            case 236:
                return bindImportClause(node);
            case 241:
                return bindExportDeclaration(node);
            case 240:
                return bindExportAssignment(node);
            case 261:
                updateStrictModeStatementList(node.statements);
                return bindSourceFileIfExternalModule();
            case 204:
                if (!ts.isFunctionLike(node.parent)) {
                    return;
                }
            case 231:
                return updateStrictModeStatementList(node.statements);
        }
    }
    function checkTypePredicate(node) {
        var parameterName = node.parameterName, type = node.type;
        if (parameterName && parameterName.kind === 70) {
            checkStrictModeIdentifier(parameterName);
        }
        if (parameterName && parameterName.kind === 167) {
            seenThisKeyword = true;
        }
        bind(type);
    }
    function bindSourceFileIfExternalModule() {
        setExportContextFlag(file);
        if (ts.isExternalModule(file)) {
            bindSourceFileAsExternalModule();
        }
    }
    function bindSourceFileAsExternalModule() {
        bindAnonymousDeclaration(file, 512, "\"" + ts.removeFileExtension(file.fileName) + "\"");
    }
    function bindExportAssignment(node) {
        if (!container.symbol || !container.symbol.exports) {
            bindAnonymousDeclaration(node, 8388608, getDeclarationName(node));
        }
        else {
            var flags = node.kind === 240 && ts.exportAssignmentIsAlias(node)
                ? 8388608
                : 4;
            declareSymbol(container.symbol.exports, container.symbol, node, flags, 4 | 8388608 | 32 | 16);
        }
    }
    function bindNamespaceExportDeclaration(node) {
        if (node.modifiers && node.modifiers.length) {
            file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Modifiers_cannot_appear_here));
        }
        if (node.parent.kind !== 261) {
            file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_at_top_level));
            return;
        }
        else {
            var parent_4 = node.parent;
            if (!ts.isExternalModule(parent_4)) {
                file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_module_files));
                return;
            }
            if (!parent_4.isDeclarationFile) {
                file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_declaration_files));
                return;
            }
        }
        file.symbol.globalExports = file.symbol.globalExports || ts.createMap();
        declareSymbol(file.symbol.globalExports, file.symbol, node, 8388608, 8388608);
    }
    function bindExportDeclaration(node) {
        if (!container.symbol || !container.symbol.exports) {
            bindAnonymousDeclaration(node, 1073741824, getDeclarationName(node));
        }
        else if (!node.exportClause) {
            declareSymbol(container.symbol.exports, container.symbol, node, 1073741824, 0);
        }
    }
    function bindImportClause(node) {
        if (node.name) {
            declareSymbolAndAddToSymbolTable(node, 8388608, 8388608);
        }
    }
    function setCommonJsModuleIndicator(node) {
        if (!file.commonJsModuleIndicator) {
            file.commonJsModuleIndicator = node;
            if (!file.externalModuleIndicator) {
                bindSourceFileAsExternalModule();
            }
        }
    }
    function bindExportsPropertyAssignment(node) {
        setCommonJsModuleIndicator(node);
        declareSymbol(file.symbol.exports, file.symbol, node.left, 4 | 7340032, 0);
    }
    function bindModuleExportsAssignment(node) {
        setCommonJsModuleIndicator(node);
        declareSymbol(file.symbol.exports, file.symbol, node, 4 | 7340032 | 512, 0);
    }
    function bindThisPropertyAssignment(node) {
        ts.Debug.assert(ts.isInJavaScriptFile(node));
        if (container.kind === 225 || container.kind === 184) {
            container.symbol.members = container.symbol.members || ts.createMap();
            declareSymbol(container.symbol.members, container.symbol, node, 4, 0 & ~4);
        }
        else if (container.kind === 150) {
            var saveContainer = container;
            container = container.parent;
            var symbol = bindPropertyOrMethodOrAccessor(node, 4, 0);
            if (symbol) {
                symbol.isReplaceableByMethod = true;
            }
            container = saveContainer;
        }
    }
    function bindPrototypePropertyAssignment(node) {
        var leftSideOfAssignment = node.left;
        var classPrototype = leftSideOfAssignment.expression;
        var constructorFunction = classPrototype.expression;
        leftSideOfAssignment.parent = node;
        constructorFunction.parent = classPrototype;
        classPrototype.parent = leftSideOfAssignment;
        var funcSymbol = container.locals[constructorFunction.text];
        if (!funcSymbol || !(funcSymbol.flags & 16 || ts.isDeclarationOfFunctionExpression(funcSymbol))) {
            return;
        }
        if (!funcSymbol.members) {
            funcSymbol.members = ts.createMap();
        }
        declareSymbol(funcSymbol.members, funcSymbol, leftSideOfAssignment, 4, 0);
    }
    function bindCallExpression(node) {
        if (!file.commonJsModuleIndicator && ts.isRequireCall(node, false)) {
            setCommonJsModuleIndicator(node);
        }
    }
    function bindClassLikeDeclaration(node) {
        if (node.kind === 226) {
            bindBlockScopedDeclaration(node, 32, 899519);
        }
        else {
            var bindingName = node.name ? node.name.text : "__class";
            bindAnonymousDeclaration(node, 32, bindingName);
            if (node.name) {
                classifiableNames[node.name.text] = node.name.text;
            }
        }
        var symbol = node.symbol;
        var prototypeSymbol = createSymbol(4 | 134217728, "prototype");
        if (symbol.exports[prototypeSymbol.name]) {
            if (node.name) {
                node.name.parent = node;
            }
            file.bindDiagnostics.push(ts.createDiagnosticForNode(symbol.exports[prototypeSymbol.name].declarations[0], ts.Diagnostics.Duplicate_identifier_0, prototypeSymbol.name));
        }
        symbol.exports[prototypeSymbol.name] = prototypeSymbol;
        prototypeSymbol.parent = symbol;
    }
    function bindEnumDeclaration(node) {
        return ts.isConst(node)
            ? bindBlockScopedDeclaration(node, 128, 899967)
            : bindBlockScopedDeclaration(node, 256, 899327);
    }
    function bindVariableDeclarationOrBindingElement(node) {
        if (inStrictMode) {
            checkStrictModeEvalOrArguments(node, node.name);
        }
        if (!ts.isBindingPattern(node.name)) {
            if (ts.isBlockOrCatchScoped(node)) {
                bindBlockScopedVariableDeclaration(node);
            }
            else if (ts.isParameterDeclaration(node)) {
                declareSymbolAndAddToSymbolTable(node, 1, 107455);
            }
            else {
                declareSymbolAndAddToSymbolTable(node, 1, 107454);
            }
        }
    }
    function bindParameter(node) {
        if (inStrictMode) {
            checkStrictModeEvalOrArguments(node, node.name);
        }
        if (ts.isBindingPattern(node.name)) {
            bindAnonymousDeclaration(node, 1, getDestructuringParameterName(node));
        }
        else {
            declareSymbolAndAddToSymbolTable(node, 1, 107455);
        }
        if (ts.isParameterPropertyDeclaration(node)) {
            var classDeclaration = node.parent.parent;
            declareSymbol(classDeclaration.symbol.members, classDeclaration.symbol, node, 4 | (node.questionToken ? 536870912 : 0), 0);
        }
    }
    function bindFunctionDeclaration(node) {
        if (!ts.isDeclarationFile(file) && !ts.isInAmbientContext(node)) {
            if (ts.isAsyncFunctionLike(node)) {
                emitFlags |= 1024;
            }
        }
        checkStrictModeFunctionName(node);
        if (inStrictMode) {
            checkStrictModeFunctionDeclaration(node);
            bindBlockScopedDeclaration(node, 16, 106927);
        }
        else {
            declareSymbolAndAddToSymbolTable(node, 16, 106927);
        }
    }
    function bindFunctionExpression(node) {
        if (!ts.isDeclarationFile(file) && !ts.isInAmbientContext(node)) {
            if (ts.isAsyncFunctionLike(node)) {
                emitFlags |= 1024;
            }
        }
        if (currentFlow) {
            node.flowNode = currentFlow;
        }
        checkStrictModeFunctionName(node);
        var bindingName = node.name ? node.name.text : "__function";
        return bindAnonymousDeclaration(node, 16, bindingName);
    }
    function bindPropertyOrMethodOrAccessor(node, symbolFlags, symbolExcludes) {
        if (!ts.isDeclarationFile(file) && !ts.isInAmbientContext(node)) {
            if (ts.isAsyncFunctionLike(node)) {
                emitFlags |= 1024;
            }
        }
        if (currentFlow && ts.isObjectLiteralOrClassExpressionMethod(node)) {
            node.flowNode = currentFlow;
        }
        return ts.hasDynamicName(node)
            ? bindAnonymousDeclaration(node, symbolFlags, "__computed")
            : declareSymbolAndAddToSymbolTable(node, symbolFlags, symbolExcludes);
    }
    function bindJSDocProperty(node) {
        return declareSymbolAndAddToSymbolTable(node, 4, 0);
    }
    function shouldReportErrorOnModuleDeclaration(node) {
        var instanceState = getModuleInstanceState(node);
        return instanceState === 1 || (instanceState === 2 && options.preserveConstEnums);
    }
    function checkUnreachable(node) {
        if (!(currentFlow.flags & 1)) {
            return false;
        }
        if (currentFlow === unreachableFlow) {
            var reportError = (ts.isStatementButNotDeclaration(node) && node.kind !== 206) ||
                node.kind === 226 ||
                (node.kind === 230 && shouldReportErrorOnModuleDeclaration(node)) ||
                (node.kind === 229 && (!ts.isConstEnumDeclaration(node) || options.preserveConstEnums));
            if (reportError) {
                currentFlow = reportedUnreachableFlow;
                var reportUnreachableCode = !options.allowUnreachableCode &&
                    !ts.isInAmbientContext(node) &&
                    (node.kind !== 205 ||
                        ts.getCombinedNodeFlags(node.declarationList) & 3 ||
                        ts.forEach(node.declarationList.declarations, function (d) { return d.initializer; }));
                if (reportUnreachableCode) {
                    errorOnFirstToken(node, ts.Diagnostics.Unreachable_code_detected);
                }
            }
        }
        return true;
    }
}
function computeTransformFlagsForNode(node, subtreeFlags) {
    var kind = node.kind;
    switch (kind) {
        case 179:
            return computeCallExpression(node, subtreeFlags);
        case 180:
            return computeNewExpression(node, subtreeFlags);
        case 230:
            return computeModuleDeclaration(node, subtreeFlags);
        case 183:
            return computeParenthesizedExpression(node, subtreeFlags);
        case 192:
            return computeBinaryExpression(node, subtreeFlags);
        case 207:
            return computeExpressionStatement(node, subtreeFlags);
        case 144:
            return computeParameter(node, subtreeFlags);
        case 185:
            return computeArrowFunction(node, subtreeFlags);
        case 184:
            return computeFunctionExpression(node, subtreeFlags);
        case 225:
            return computeFunctionDeclaration(node, subtreeFlags);
        case 223:
            return computeVariableDeclaration(node, subtreeFlags);
        case 224:
            return computeVariableDeclarationList(node, subtreeFlags);
        case 205:
            return computeVariableStatement(node, subtreeFlags);
        case 219:
            return computeLabeledStatement(node, subtreeFlags);
        case 226:
            return computeClassDeclaration(node, subtreeFlags);
        case 197:
            return computeClassExpression(node, subtreeFlags);
        case 255:
            return computeHeritageClause(node, subtreeFlags);
        case 256:
            return computeCatchClause(node, subtreeFlags);
        case 199:
            return computeExpressionWithTypeArguments(node, subtreeFlags);
        case 150:
            return computeConstructor(node, subtreeFlags);
        case 147:
            return computePropertyDeclaration(node, subtreeFlags);
        case 149:
            return computeMethod(node, subtreeFlags);
        case 151:
        case 152:
            return computeAccessor(node, subtreeFlags);
        case 234:
            return computeImportEquals(node, subtreeFlags);
        case 177:
            return computePropertyAccess(node, subtreeFlags);
        default:
            return computeOther(node, kind, subtreeFlags);
    }
}
ts.computeTransformFlagsForNode = computeTransformFlagsForNode;
function computeCallExpression(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    var expression = node.expression;
    var expressionKind = expression.kind;
    if (node.typeArguments) {
        transformFlags |= 3;
    }
    if (subtreeFlags & 524288
        || isSuperOrSuperProperty(expression, expressionKind)) {
        transformFlags |= 192;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~537396545;
}
function isSuperOrSuperProperty(node, kind) {
    switch (kind) {
        case 96:
            return true;
        case 177:
        case 178:
            var expression = node.expression;
            var expressionKind = expression.kind;
            return expressionKind === 96;
    }
    return false;
}
function computeNewExpression(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    if (node.typeArguments) {
        transformFlags |= 3;
    }
    if (subtreeFlags & 524288) {
        transformFlags |= 192;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~537396545;
}
function computeBinaryExpression(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    var operatorTokenKind = node.operatorToken.kind;
    var leftKind = node.left.kind;
    if (operatorTokenKind === 57 && leftKind === 176) {
        transformFlags |= 8 | 192 | 3072;
    }
    else if (operatorTokenKind === 57 && leftKind === 175) {
        transformFlags |= 192 | 3072;
    }
    else if (operatorTokenKind === 39
        || operatorTokenKind === 61) {
        transformFlags |= 32;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~536872257;
}
function computeParameter(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    var modifierFlags = ts.getModifierFlags(node);
    var name = node.name;
    var initializer = node.initializer;
    var dotDotDotToken = node.dotDotDotToken;
    if (node.questionToken
        || node.type
        || subtreeFlags & 4096
        || ts.isThisIdentifier(name)) {
        transformFlags |= 3;
    }
    if (modifierFlags & 92) {
        transformFlags |= 3 | 262144;
    }
    if (subtreeFlags & 1048576) {
        transformFlags |= 8;
    }
    if (subtreeFlags & 8388608 || initializer || dotDotDotToken) {
        transformFlags |= 192 | 131072;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~536872257;
}
function computeParenthesizedExpression(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    var expression = node.expression;
    var expressionKind = expression.kind;
    var expressionTransformFlags = expression.transformFlags;
    if (expressionKind === 200
        || expressionKind === 182) {
        transformFlags |= 3;
    }
    if (expressionTransformFlags & 1024) {
        transformFlags |= 1024;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~536872257;
}
function computeClassDeclaration(node, subtreeFlags) {
    var transformFlags;
    var modifierFlags = ts.getModifierFlags(node);
    if (modifierFlags & 2) {
        transformFlags = 3;
    }
    else {
        transformFlags = subtreeFlags | 192;
        if ((subtreeFlags & 274432)
            || node.typeParameters) {
            transformFlags |= 3;
        }
        if (subtreeFlags & 65536) {
            transformFlags |= 16384;
        }
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~539358529;
}
function computeClassExpression(node, subtreeFlags) {
    var transformFlags = subtreeFlags | 192;
    if (subtreeFlags & 274432
        || node.typeParameters) {
        transformFlags |= 3;
    }
    if (subtreeFlags & 65536) {
        transformFlags |= 16384;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~539358529;
}
function computeHeritageClause(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    switch (node.token) {
        case 84:
            transformFlags |= 192;
            break;
        case 107:
            transformFlags |= 3;
            break;
        default:
            ts.Debug.fail("Unexpected token for heritage clause");
            break;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~536872257;
}
function computeCatchClause(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    if (node.variableDeclaration && ts.isBindingPattern(node.variableDeclaration.name)) {
        transformFlags |= 192;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~537920833;
}
function computeExpressionWithTypeArguments(node, subtreeFlags) {
    var transformFlags = subtreeFlags | 192;
    if (node.typeArguments) {
        transformFlags |= 3;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~536872257;
}
function computeConstructor(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    if (ts.hasModifier(node, 2270)
        || !node.body) {
        transformFlags |= 3;
    }
    if (subtreeFlags & 1048576) {
        transformFlags |= 8;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~601015617;
}
function computeMethod(node, subtreeFlags) {
    var transformFlags = subtreeFlags | 192;
    if (node.decorators
        || ts.hasModifier(node, 2270)
        || node.typeParameters
        || node.type
        || !node.body) {
        transformFlags |= 3;
    }
    if (subtreeFlags & 1048576) {
        transformFlags |= 8;
    }
    if (ts.hasModifier(node, 256)) {
        transformFlags |= 16;
    }
    if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
        transformFlags |= 768;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~601015617;
}
function computeAccessor(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    if (node.decorators
        || ts.hasModifier(node, 2270)
        || node.type
        || !node.body) {
        transformFlags |= 3;
    }
    if (subtreeFlags & 1048576) {
        transformFlags |= 8;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~601015617;
}
function computePropertyDeclaration(node, subtreeFlags) {
    var transformFlags = subtreeFlags | 3;
    if (node.initializer) {
        transformFlags |= 8192;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~536872257;
}
function computeFunctionDeclaration(node, subtreeFlags) {
    var transformFlags;
    var modifierFlags = ts.getModifierFlags(node);
    var body = node.body;
    if (!body || (modifierFlags & 2)) {
        transformFlags = 3;
    }
    else {
        transformFlags = subtreeFlags | 33554432;
        if (modifierFlags & 2270
            || node.typeParameters
            || node.type) {
            transformFlags |= 3;
        }
        if (modifierFlags & 256) {
            transformFlags |= 16;
        }
        if (subtreeFlags & 1048576) {
            transformFlags |= 8;
        }
        if (subtreeFlags & 163840) {
            transformFlags |= 192;
        }
        if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
            transformFlags |= 768;
        }
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~601281857;
}
function computeFunctionExpression(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    if (ts.hasModifier(node, 2270)
        || node.typeParameters
        || node.type) {
        transformFlags |= 3;
    }
    if (ts.hasModifier(node, 256)) {
        transformFlags |= 16;
    }
    if (subtreeFlags & 1048576) {
        transformFlags |= 8;
    }
    if (subtreeFlags & 163840) {
        transformFlags |= 192;
    }
    if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
        transformFlags |= 768;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~601281857;
}
function computeArrowFunction(node, subtreeFlags) {
    var transformFlags = subtreeFlags | 192;
    if (ts.hasModifier(node, 2270)
        || node.typeParameters
        || node.type) {
        transformFlags |= 3;
    }
    if (ts.hasModifier(node, 256)) {
        transformFlags |= 16;
    }
    if (subtreeFlags & 1048576) {
        transformFlags |= 8;
    }
    if (subtreeFlags & 16384) {
        transformFlags |= 32768;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~601249089;
}
function computePropertyAccess(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    var expression = node.expression;
    var expressionKind = expression.kind;
    if (expressionKind === 96) {
        transformFlags |= 16384;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~536872257;
}
function computeVariableDeclaration(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    transformFlags |= 192 | 8388608;
    if (subtreeFlags & 1048576) {
        transformFlags |= 8;
    }
    if (node.type) {
        transformFlags |= 3;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~536872257;
}
function computeVariableStatement(node, subtreeFlags) {
    var transformFlags;
    var modifierFlags = ts.getModifierFlags(node);
    var declarationListTransformFlags = node.declarationList.transformFlags;
    if (modifierFlags & 2) {
        transformFlags = 3;
    }
    else {
        transformFlags = subtreeFlags;
        if (declarationListTransformFlags & 8388608) {
            transformFlags |= 192;
        }
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~536872257;
}
function computeLabeledStatement(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    if (subtreeFlags & 4194304
        && ts.isIterationStatement(node, true)) {
        transformFlags |= 192;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~536872257;
}
function computeImportEquals(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    if (!ts.isExternalModuleImportEqualsDeclaration(node)) {
        transformFlags |= 3;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~536872257;
}
function computeExpressionStatement(node, subtreeFlags) {
    var transformFlags = subtreeFlags;
    if (node.expression.transformFlags & 1024) {
        transformFlags |= 192;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~536872257;
}
function computeModuleDeclaration(node, subtreeFlags) {
    var transformFlags = 3;
    var modifierFlags = ts.getModifierFlags(node);
    if ((modifierFlags & 2) === 0) {
        transformFlags |= subtreeFlags;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~574674241;
}
function computeVariableDeclarationList(node, subtreeFlags) {
    var transformFlags = subtreeFlags | 33554432;
    if (subtreeFlags & 8388608) {
        transformFlags |= 192;
    }
    if (node.flags & 3) {
        transformFlags |= 192 | 4194304;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~546309441;
}
function computeOther(node, kind, subtreeFlags) {
    var transformFlags = subtreeFlags;
    var excludeFlags = 536872257;
    switch (kind) {
        case 119:
        case 189:
            transformFlags |= 16;
            break;
        case 113:
        case 111:
        case 112:
        case 116:
        case 123:
        case 75:
        case 229:
        case 260:
        case 182:
        case 200:
        case 201:
        case 130:
            transformFlags |= 3;
            break;
        case 246:
        case 247:
        case 248:
        case 10:
        case 249:
        case 250:
        case 251:
        case 252:
            transformFlags |= 4;
            break;
        case 213:
            transformFlags |= 8;
        case 12:
        case 13:
        case 14:
        case 15:
        case 194:
        case 181:
        case 258:
        case 114:
            transformFlags |= 192;
            break;
        case 195:
            transformFlags |= 192 | 16777216;
            break;
        case 118:
        case 132:
        case 129:
        case 134:
        case 121:
        case 135:
        case 104:
        case 143:
        case 146:
        case 148:
        case 153:
        case 154:
        case 155:
        case 156:
        case 157:
        case 158:
        case 159:
        case 160:
        case 161:
        case 162:
        case 163:
        case 164:
        case 165:
        case 166:
        case 227:
        case 228:
        case 167:
        case 168:
        case 169:
        case 170:
        case 171:
            transformFlags = 3;
            excludeFlags = -3;
            break;
        case 142:
            transformFlags |= 2097152;
            if (subtreeFlags & 16384) {
                transformFlags |= 65536;
            }
            break;
        case 196:
            transformFlags |= 192 | 524288;
            break;
        case 259:
            transformFlags |= 8 | 1048576;
            break;
        case 96:
            transformFlags |= 192;
            break;
        case 98:
            transformFlags |= 16384;
            break;
        case 172:
            transformFlags |= 192 | 8388608;
            if (subtreeFlags & 524288) {
                transformFlags |= 8 | 1048576;
            }
            excludeFlags = 537396545;
            break;
        case 173:
            transformFlags |= 192 | 8388608;
            excludeFlags = 537396545;
            break;
        case 174:
            transformFlags |= 192;
            if (node.dotDotDotToken) {
                transformFlags |= 524288;
            }
            break;
        case 145:
            transformFlags |= 3 | 4096;
            break;
        case 176:
            excludeFlags = 540087617;
            if (subtreeFlags & 2097152) {
                transformFlags |= 192;
            }
            if (subtreeFlags & 65536) {
                transformFlags |= 16384;
            }
            if (subtreeFlags & 1048576) {
                transformFlags |= 8;
            }
            break;
        case 175:
        case 180:
            excludeFlags = 537396545;
            if (subtreeFlags & 524288) {
                transformFlags |= 192;
            }
            break;
        case 209:
        case 210:
        case 211:
        case 212:
            if (subtreeFlags & 4194304) {
                transformFlags |= 192;
            }
            break;
        case 261:
            if (subtreeFlags & 32768) {
                transformFlags |= 192;
            }
            break;
        case 216:
        case 214:
        case 215:
            transformFlags |= 33554432;
            break;
    }
    node.transformFlags = transformFlags | 536870912;
    return transformFlags & ~excludeFlags;
}
function getTransformFlagsSubtreeExclusions(kind) {
    if (kind >= 156 && kind <= 171) {
        return -3;
    }
    switch (kind) {
        case 179:
        case 180:
        case 175:
            return 537396545;
        case 230:
            return 574674241;
        case 144:
            return 536872257;
        case 185:
            return 601249089;
        case 184:
        case 225:
            return 601281857;
        case 224:
            return 546309441;
        case 226:
        case 197:
            return 539358529;
        case 150:
            return 601015617;
        case 149:
        case 151:
        case 152:
            return 601015617;
        case 118:
        case 132:
        case 129:
        case 134:
        case 121:
        case 135:
        case 104:
        case 143:
        case 146:
        case 148:
        case 153:
        case 154:
        case 155:
        case 227:
        case 228:
            return -3;
        case 176:
            return 540087617;
        case 256:
            return 537920833;
        case 172:
        case 173:
            return 537396545;
        default:
            return 536872257;
    }
}
ts.getTransformFlagsSubtreeExclusions = getTransformFlagsSubtreeExclusions;

})(ts || (ts = {})); var ts; (function (ts) {

function trace(host) {
    host.trace(ts.formatMessage.apply(undefined, arguments));
}
ts.trace = trace;
function isTraceEnabled(compilerOptions, host) {
    return compilerOptions.traceResolution && host.trace !== undefined;
}
ts.isTraceEnabled = isTraceEnabled;
function resolvedTypeScriptOnly(resolved) {
    if (!resolved) {
        return undefined;
    }
    ts.Debug.assert(ts.extensionIsTypeScript(resolved.extension));
    return resolved.path;
}
function resolvedModuleFromResolved(_a, isExternalLibraryImport) {
    var path = _a.path, extension = _a.extension;
    return { resolvedFileName: path, extension: extension, isExternalLibraryImport: isExternalLibraryImport };
}
function createResolvedModuleWithFailedLookupLocations(resolved, isExternalLibraryImport, failedLookupLocations) {
    return { resolvedModule: resolved && resolvedModuleFromResolved(resolved, isExternalLibraryImport), failedLookupLocations: failedLookupLocations };
}
function moduleHasNonRelativeName(moduleName) {
    return !(ts.isRootedDiskPath(moduleName) || ts.isExternalModuleNameRelative(moduleName));
}
ts.moduleHasNonRelativeName = moduleHasNonRelativeName;
function tryReadPackageJsonMainOrTypes(extensions, packageJsonPath, baseDirectory, state) {
    var jsonContent = readJson(packageJsonPath, state.host);
    switch (extensions) {
        case 2:
        case 0:
            return tryReadFromField("typings") || tryReadFromField("types");
        case 1:
            return tryReadFromField("main");
    }
    function tryReadFromField(fieldName) {
        if (ts.hasProperty(jsonContent, fieldName)) {
            var typesFile = jsonContent[fieldName];
            if (typeof typesFile === "string") {
                var typesFilePath = ts.normalizePath(ts.combinePaths(baseDirectory, typesFile));
                if (state.traceEnabled) {
                    trace(state.host, ts.Diagnostics.package_json_has_0_field_1_that_references_2, fieldName, typesFile, typesFilePath);
                }
                return typesFilePath;
            }
            else {
                if (state.traceEnabled) {
                    trace(state.host, ts.Diagnostics.Expected_type_of_0_field_in_package_json_to_be_string_got_1, fieldName, typeof typesFile);
                }
            }
        }
    }
}
function readJson(path, host) {
    try {
        var jsonText = host.readFile(path);
        return jsonText ? JSON.parse(jsonText) : {};
    }
    catch (e) {
        return {};
    }
}
function getEffectiveTypeRoots(options, host) {
    if (options.typeRoots) {
        return options.typeRoots;
    }
    var currentDirectory;
    if (options.configFilePath) {
        currentDirectory = ts.getDirectoryPath(options.configFilePath);
    }
    else if (host.getCurrentDirectory) {
        currentDirectory = host.getCurrentDirectory();
    }
    if (currentDirectory !== undefined) {
        return getDefaultTypeRoots(currentDirectory, host);
    }
}
ts.getEffectiveTypeRoots = getEffectiveTypeRoots;
function getDefaultTypeRoots(currentDirectory, host) {
    if (!host.directoryExists) {
        return [ts.combinePaths(currentDirectory, nodeModulesAtTypes)];
    }
    var typeRoots;
    forEachAncestorDirectory(currentDirectory, function (directory) {
        var atTypes = ts.combinePaths(directory, nodeModulesAtTypes);
        if (host.directoryExists(atTypes)) {
            (typeRoots || (typeRoots = [])).push(atTypes);
        }
        return undefined;
    });
    return typeRoots;
}
var nodeModulesAtTypes = ts.combinePaths("node_modules", "@types");
function resolveTypeReferenceDirective(typeReferenceDirectiveName, containingFile, options, host) {
    var traceEnabled = isTraceEnabled(options, host);
    var moduleResolutionState = {
        compilerOptions: options,
        host: host,
        traceEnabled: traceEnabled
    };
    var typeRoots = getEffectiveTypeRoots(options, host);
    if (traceEnabled) {
        if (containingFile === undefined) {
            if (typeRoots === undefined) {
                trace(host, ts.Diagnostics.Resolving_type_reference_directive_0_containing_file_not_set_root_directory_not_set, typeReferenceDirectiveName);
            }
            else {
                trace(host, ts.Diagnostics.Resolving_type_reference_directive_0_containing_file_not_set_root_directory_1, typeReferenceDirectiveName, typeRoots);
            }
        }
        else {
            if (typeRoots === undefined) {
                trace(host, ts.Diagnostics.Resolving_type_reference_directive_0_containing_file_1_root_directory_not_set, typeReferenceDirectiveName, containingFile);
            }
            else {
                trace(host, ts.Diagnostics.Resolving_type_reference_directive_0_containing_file_1_root_directory_2, typeReferenceDirectiveName, containingFile, typeRoots);
            }
        }
    }
    var failedLookupLocations = [];
    var resolved = primaryLookup();
    var primary = true;
    if (!resolved) {
        resolved = secondaryLookup();
        primary = false;
    }
    var resolvedTypeReferenceDirective;
    if (resolved) {
        resolved = realpath(resolved, host, traceEnabled);
        if (traceEnabled) {
            trace(host, ts.Diagnostics.Type_reference_directive_0_was_successfully_resolved_to_1_primary_Colon_2, typeReferenceDirectiveName, resolved, primary);
        }
        resolvedTypeReferenceDirective = { primary: primary, resolvedFileName: resolved };
    }
    return { resolvedTypeReferenceDirective: resolvedTypeReferenceDirective, failedLookupLocations: failedLookupLocations };
    function primaryLookup() {
        if (typeRoots && typeRoots.length) {
            if (traceEnabled) {
                trace(host, ts.Diagnostics.Resolving_with_primary_search_path_0, typeRoots.join(", "));
            }
            return ts.forEach(typeRoots, function (typeRoot) {
                var candidate = ts.combinePaths(typeRoot, typeReferenceDirectiveName);
                var candidateDirectory = ts.getDirectoryPath(candidate);
                return resolvedTypeScriptOnly(loadNodeModuleFromDirectory(2, candidate, failedLookupLocations, !directoryProbablyExists(candidateDirectory, host), moduleResolutionState));
            });
        }
        else {
            if (traceEnabled) {
                trace(host, ts.Diagnostics.Root_directory_cannot_be_determined_skipping_primary_search_paths);
            }
        }
    }
    function secondaryLookup() {
        var resolvedFile;
        var initialLocationForSecondaryLookup = containingFile && ts.getDirectoryPath(containingFile);
        if (initialLocationForSecondaryLookup !== undefined) {
            if (traceEnabled) {
                trace(host, ts.Diagnostics.Looking_up_in_node_modules_folder_initial_location_0, initialLocationForSecondaryLookup);
            }
            var result = loadModuleFromNodeModules(2, typeReferenceDirectiveName, initialLocationForSecondaryLookup, failedLookupLocations, moduleResolutionState, undefined);
            resolvedFile = resolvedTypeScriptOnly(result && result.value);
            if (!resolvedFile && traceEnabled) {
                trace(host, ts.Diagnostics.Type_reference_directive_0_was_not_resolved, typeReferenceDirectiveName);
            }
            return resolvedFile;
        }
        else {
            if (traceEnabled) {
                trace(host, ts.Diagnostics.Containing_file_is_not_specified_and_root_directory_cannot_be_determined_skipping_lookup_in_node_modules_folder);
            }
        }
    }
}
ts.resolveTypeReferenceDirective = resolveTypeReferenceDirective;
function getAutomaticTypeDirectiveNames(options, host) {
    if (options.types) {
        return options.types;
    }
    var result = [];
    if (host.directoryExists && host.getDirectories) {
        var typeRoots = getEffectiveTypeRoots(options, host);
        if (typeRoots) {
            for (var _i = 0, typeRoots_1 = typeRoots; _i < typeRoots_1.length; _i++) {
                var root = typeRoots_1[_i];
                if (host.directoryExists(root)) {
                    for (var _a = 0, _b = host.getDirectories(root); _a < _b.length; _a++) {
                        var typeDirectivePath = _b[_a];
                        var normalized = ts.normalizePath(typeDirectivePath);
                        var packageJsonPath = pathToPackageJson(ts.combinePaths(root, normalized));
                        var isNotNeededPackage = host.fileExists(packageJsonPath) && readJson(packageJsonPath, host).typings === null;
                        if (!isNotNeededPackage) {
                            result.push(ts.getBaseFileName(normalized));
                        }
                    }
                }
            }
        }
    }
    return result;
}
ts.getAutomaticTypeDirectiveNames = getAutomaticTypeDirectiveNames;
function createModuleResolutionCache(currentDirectory, getCanonicalFileName) {
    var directoryToModuleNameMap = ts.createFileMap();
    var moduleNameToDirectoryMap = ts.createMap();
    return { getOrCreateCacheForDirectory: getOrCreateCacheForDirectory, getOrCreateCacheForModuleName: getOrCreateCacheForModuleName };
    function getOrCreateCacheForDirectory(directoryName) {
        var path = ts.toPath(directoryName, currentDirectory, getCanonicalFileName);
        var perFolderCache = directoryToModuleNameMap.get(path);
        if (!perFolderCache) {
            perFolderCache = ts.createMap();
            directoryToModuleNameMap.set(path, perFolderCache);
        }
        return perFolderCache;
    }
    function getOrCreateCacheForModuleName(nonRelativeModuleName) {
        if (!moduleHasNonRelativeName(nonRelativeModuleName)) {
            return undefined;
        }
        var perModuleNameCache = moduleNameToDirectoryMap[nonRelativeModuleName];
        if (!perModuleNameCache) {
            moduleNameToDirectoryMap[nonRelativeModuleName] = perModuleNameCache = createPerModuleNameCache();
        }
        return perModuleNameCache;
    }
    function createPerModuleNameCache() {
        var directoryPathMap = ts.createFileMap();
        return { get: get, set: set };
        function get(directory) {
            return directoryPathMap.get(ts.toPath(directory, currentDirectory, getCanonicalFileName));
        }
        function set(directory, result) {
            var path = ts.toPath(directory, currentDirectory, getCanonicalFileName);
            if (directoryPathMap.contains(path)) {
                return;
            }
            directoryPathMap.set(path, result);
            var resolvedFileName = result.resolvedModule && result.resolvedModule.resolvedFileName;
            var commonPrefix = getCommonPrefix(path, resolvedFileName);
            var current = path;
            while (true) {
                var parent_5 = ts.getDirectoryPath(current);
                if (parent_5 === current || directoryPathMap.contains(parent_5)) {
                    break;
                }
                directoryPathMap.set(parent_5, result);
                current = parent_5;
                if (current == commonPrefix) {
                    break;
                }
            }
        }
        function getCommonPrefix(directory, resolution) {
            if (resolution === undefined) {
                return undefined;
            }
            var resolutionDirectory = ts.toPath(ts.getDirectoryPath(resolution), currentDirectory, getCanonicalFileName);
            var i = 0;
            while (i < Math.min(directory.length, resolutionDirectory.length) && directory.charCodeAt(i) === resolutionDirectory.charCodeAt(i)) {
                i++;
            }
            var sep = directory.lastIndexOf(ts.directorySeparator, i);
            if (sep < 0) {
                return undefined;
            }
            return directory.substr(0, sep);
        }
    }
}
ts.createModuleResolutionCache = createModuleResolutionCache;
function resolveModuleName(moduleName, containingFile, compilerOptions, host, cache) {
    var traceEnabled = isTraceEnabled(compilerOptions, host);
    if (traceEnabled) {
        trace(host, ts.Diagnostics.Resolving_module_0_from_1, moduleName, containingFile);
    }
    var containingDirectory = ts.getDirectoryPath(containingFile);
    var perFolderCache = cache && cache.getOrCreateCacheForDirectory(containingDirectory);
    var result = perFolderCache && perFolderCache[moduleName];
    if (result) {
        if (traceEnabled) {
            trace(host, ts.Diagnostics.Resolution_for_module_0_was_found_in_cache, moduleName);
        }
    }
    else {
        var moduleResolution = compilerOptions.moduleResolution;
        if (moduleResolution === undefined) {
            moduleResolution = ts.getEmitModuleKind(compilerOptions) === ts.ModuleKind.CommonJS ? ts.ModuleResolutionKind.NodeJs : ts.ModuleResolutionKind.Classic;
            if (traceEnabled) {
                trace(host, ts.Diagnostics.Module_resolution_kind_is_not_specified_using_0, ts.ModuleResolutionKind[moduleResolution]);
            }
        }
        else {
            if (traceEnabled) {
                trace(host, ts.Diagnostics.Explicitly_specified_module_resolution_kind_Colon_0, ts.ModuleResolutionKind[moduleResolution]);
            }
        }
        switch (moduleResolution) {
            case ts.ModuleResolutionKind.NodeJs:
                result = nodeModuleNameResolver(moduleName, containingFile, compilerOptions, host, cache);
                break;
            case ts.ModuleResolutionKind.Classic:
                result = classicNameResolver(moduleName, containingFile, compilerOptions, host, cache);
                break;
        }
        if (perFolderCache) {
            perFolderCache[moduleName] = result;
            var perModuleNameCache = cache.getOrCreateCacheForModuleName(moduleName);
            if (perModuleNameCache) {
                perModuleNameCache.set(containingDirectory, result);
            }
        }
    }
    if (traceEnabled) {
        if (result.resolvedModule) {
            trace(host, ts.Diagnostics.Module_name_0_was_successfully_resolved_to_1, moduleName, result.resolvedModule.resolvedFileName);
        }
        else {
            trace(host, ts.Diagnostics.Module_name_0_was_not_resolved, moduleName);
        }
    }
    return result;
}
ts.resolveModuleName = resolveModuleName;
function tryLoadModuleUsingOptionalResolutionSettings(extensions, moduleName, containingDirectory, loader, failedLookupLocations, state) {
    if (moduleHasNonRelativeName(moduleName)) {
        return tryLoadModuleUsingBaseUrl(extensions, moduleName, loader, failedLookupLocations, state);
    }
    else {
        return tryLoadModuleUsingRootDirs(extensions, moduleName, containingDirectory, loader, failedLookupLocations, state);
    }
}
function tryLoadModuleUsingRootDirs(extensions, moduleName, containingDirectory, loader, failedLookupLocations, state) {
    if (!state.compilerOptions.rootDirs) {
        return undefined;
    }
    if (state.traceEnabled) {
        trace(state.host, ts.Diagnostics.rootDirs_option_is_set_using_it_to_resolve_relative_module_name_0, moduleName);
    }
    var candidate = ts.normalizePath(ts.combinePaths(containingDirectory, moduleName));
    var matchedRootDir;
    var matchedNormalizedPrefix;
    for (var _i = 0, _a = state.compilerOptions.rootDirs; _i < _a.length; _i++) {
        var rootDir = _a[_i];
        var normalizedRoot = ts.normalizePath(rootDir);
        if (!ts.endsWith(normalizedRoot, ts.directorySeparator)) {
            normalizedRoot += ts.directorySeparator;
        }
        var isLongestMatchingPrefix = ts.startsWith(candidate, normalizedRoot) &&
            (matchedNormalizedPrefix === undefined || matchedNormalizedPrefix.length < normalizedRoot.length);
        if (state.traceEnabled) {
            trace(state.host, ts.Diagnostics.Checking_if_0_is_the_longest_matching_prefix_for_1_2, normalizedRoot, candidate, isLongestMatchingPrefix);
        }
        if (isLongestMatchingPrefix) {
            matchedNormalizedPrefix = normalizedRoot;
            matchedRootDir = rootDir;
        }
    }
    if (matchedNormalizedPrefix) {
        if (state.traceEnabled) {
            trace(state.host, ts.Diagnostics.Longest_matching_prefix_for_0_is_1, candidate, matchedNormalizedPrefix);
        }
        var suffix = candidate.substr(matchedNormalizedPrefix.length);
        if (state.traceEnabled) {
            trace(state.host, ts.Diagnostics.Loading_0_from_the_root_dir_1_candidate_location_2, suffix, matchedNormalizedPrefix, candidate);
        }
        var resolvedFileName = loader(extensions, candidate, failedLookupLocations, !directoryProbablyExists(containingDirectory, state.host), state);
        if (resolvedFileName) {
            return resolvedFileName;
        }
        if (state.traceEnabled) {
            trace(state.host, ts.Diagnostics.Trying_other_entries_in_rootDirs);
        }
        for (var _b = 0, _c = state.compilerOptions.rootDirs; _b < _c.length; _b++) {
            var rootDir = _c[_b];
            if (rootDir === matchedRootDir) {
                continue;
            }
            var candidate_1 = ts.combinePaths(ts.normalizePath(rootDir), suffix);
            if (state.traceEnabled) {
                trace(state.host, ts.Diagnostics.Loading_0_from_the_root_dir_1_candidate_location_2, suffix, rootDir, candidate_1);
            }
            var baseDirectory = ts.getDirectoryPath(candidate_1);
            var resolvedFileName_1 = loader(extensions, candidate_1, failedLookupLocations, !directoryProbablyExists(baseDirectory, state.host), state);
            if (resolvedFileName_1) {
                return resolvedFileName_1;
            }
        }
        if (state.traceEnabled) {
            trace(state.host, ts.Diagnostics.Module_resolution_using_rootDirs_has_failed);
        }
    }
    return undefined;
}
function tryLoadModuleUsingBaseUrl(extensions, moduleName, loader, failedLookupLocations, state) {
    if (!state.compilerOptions.baseUrl) {
        return undefined;
    }
    if (state.traceEnabled) {
        trace(state.host, ts.Diagnostics.baseUrl_option_is_set_to_0_using_this_value_to_resolve_non_relative_module_name_1, state.compilerOptions.baseUrl, moduleName);
    }
    var matchedPattern = undefined;
    if (state.compilerOptions.paths) {
        if (state.traceEnabled) {
            trace(state.host, ts.Diagnostics.paths_option_is_specified_looking_for_a_pattern_to_match_module_name_0, moduleName);
        }
        matchedPattern = ts.matchPatternOrExact(ts.getOwnKeys(state.compilerOptions.paths), moduleName);
    }
    if (matchedPattern) {
        var matchedStar_1 = typeof matchedPattern === "string" ? undefined : ts.matchedText(matchedPattern, moduleName);
        var matchedPatternText = typeof matchedPattern === "string" ? matchedPattern : ts.patternText(matchedPattern);
        if (state.traceEnabled) {
            trace(state.host, ts.Diagnostics.Module_name_0_matched_pattern_1, moduleName, matchedPatternText);
        }
        return ts.forEach(state.compilerOptions.paths[matchedPatternText], function (subst) {
            var path = matchedStar_1 ? subst.replace("*", matchedStar_1) : subst;
            var candidate = ts.normalizePath(ts.combinePaths(state.compilerOptions.baseUrl, path));
            if (state.traceEnabled) {
                trace(state.host, ts.Diagnostics.Trying_substitution_0_candidate_module_location_Colon_1, subst, path);
            }
            var tsExtension = ts.tryGetExtensionFromPath(candidate);
            if (tsExtension !== undefined) {
                var path_1 = tryFile(candidate, failedLookupLocations, false, state);
                return path_1 && { path: path_1, extension: tsExtension };
            }
            return loader(extensions, candidate, failedLookupLocations, !directoryProbablyExists(ts.getDirectoryPath(candidate), state.host), state);
        });
    }
    else {
        var candidate = ts.normalizePath(ts.combinePaths(state.compilerOptions.baseUrl, moduleName));
        if (state.traceEnabled) {
            trace(state.host, ts.Diagnostics.Resolving_module_name_0_relative_to_base_url_1_2, moduleName, state.compilerOptions.baseUrl, candidate);
        }
        return loader(extensions, candidate, failedLookupLocations, !directoryProbablyExists(ts.getDirectoryPath(candidate), state.host), state);
    }
}
function nodeModuleNameResolver(moduleName, containingFile, compilerOptions, host, cache) {
    var containingDirectory = ts.getDirectoryPath(containingFile);
    var traceEnabled = isTraceEnabled(compilerOptions, host);
    var failedLookupLocations = [];
    var state = { compilerOptions: compilerOptions, host: host, traceEnabled: traceEnabled };
    var result = tryResolve(0) || tryResolve(1);
    if (result && result.value) {
        var _a = result.value, resolved = _a.resolved, isExternalLibraryImport = _a.isExternalLibraryImport;
        return createResolvedModuleWithFailedLookupLocations(resolved, isExternalLibraryImport, failedLookupLocations);
    }
    return { resolvedModule: undefined, failedLookupLocations: failedLookupLocations };
    function tryResolve(extensions) {
        var resolved = tryLoadModuleUsingOptionalResolutionSettings(extensions, moduleName, containingDirectory, nodeLoadModuleByRelativeName, failedLookupLocations, state);
        if (resolved) {
            return toSearchResult({ resolved: resolved, isExternalLibraryImport: false });
        }
        if (moduleHasNonRelativeName(moduleName)) {
            if (traceEnabled) {
                trace(host, ts.Diagnostics.Loading_module_0_from_node_modules_folder, moduleName);
            }
            var resolved_1 = loadModuleFromNodeModules(extensions, moduleName, containingDirectory, failedLookupLocations, state, cache);
            return resolved_1 && { value: resolved_1.value && { resolved: { path: realpath(resolved_1.value.path, host, traceEnabled), extension: resolved_1.value.extension }, isExternalLibraryImport: true } };
        }
        else {
            var candidate = ts.normalizePath(ts.combinePaths(containingDirectory, moduleName));
            var resolved_2 = nodeLoadModuleByRelativeName(extensions, candidate, failedLookupLocations, false, state);
            return resolved_2 && toSearchResult({ resolved: resolved_2, isExternalLibraryImport: false });
        }
    }
}
ts.nodeModuleNameResolver = nodeModuleNameResolver;
function realpath(path, host, traceEnabled) {
    if (!host.realpath) {
        return path;
    }
    var real = ts.normalizePath(host.realpath(path));
    if (traceEnabled) {
        trace(host, ts.Diagnostics.Resolving_real_path_for_0_result_1, path, real);
    }
    return real;
}
function nodeLoadModuleByRelativeName(extensions, candidate, failedLookupLocations, onlyRecordFailures, state) {
    if (state.traceEnabled) {
        trace(state.host, ts.Diagnostics.Loading_module_as_file_Slash_folder_candidate_module_location_0, candidate);
    }
    var resolvedFromFile = !ts.pathEndsWithDirectorySeparator(candidate) && loadModuleFromFile(extensions, candidate, failedLookupLocations, onlyRecordFailures, state);
    return resolvedFromFile || loadNodeModuleFromDirectory(extensions, candidate, failedLookupLocations, onlyRecordFailures, state);
}
function directoryProbablyExists(directoryName, host) {
    return !host.directoryExists || host.directoryExists(directoryName);
}
ts.directoryProbablyExists = directoryProbablyExists;
function loadModuleFromFile(extensions, candidate, failedLookupLocations, onlyRecordFailures, state) {
    var resolvedByAddingExtension = tryAddingExtensions(candidate, extensions, failedLookupLocations, onlyRecordFailures, state);
    if (resolvedByAddingExtension) {
        return resolvedByAddingExtension;
    }
    if (ts.hasJavaScriptFileExtension(candidate)) {
        var extensionless = ts.removeFileExtension(candidate);
        if (state.traceEnabled) {
            var extension = candidate.substring(extensionless.length);
            trace(state.host, ts.Diagnostics.File_name_0_has_a_1_extension_stripping_it, candidate, extension);
        }
        return tryAddingExtensions(extensionless, extensions, failedLookupLocations, onlyRecordFailures, state);
    }
}
function tryAddingExtensions(candidate, extensions, failedLookupLocations, onlyRecordFailures, state) {
    if (!onlyRecordFailures) {
        var directory = ts.getDirectoryPath(candidate);
        if (directory) {
            onlyRecordFailures = !directoryProbablyExists(directory, state.host);
        }
    }
    switch (extensions) {
        case 2:
            return tryExtension(".d.ts", ts.Extension.Dts);
        case 0:
            return tryExtension(".ts", ts.Extension.Ts) || tryExtension(".tsx", ts.Extension.Tsx) || tryExtension(".d.ts", ts.Extension.Dts);
        case 1:
            return tryExtension(".js", ts.Extension.Js) || tryExtension(".jsx", ts.Extension.Jsx);
    }
    function tryExtension(ext, extension) {
        var path = tryFile(candidate + ext, failedLookupLocations, onlyRecordFailures, state);
        return path && { path: path, extension: extension };
    }
}
function tryFile(fileName, failedLookupLocations, onlyRecordFailures, state) {
    if (!onlyRecordFailures && state.host.fileExists(fileName)) {
        if (state.traceEnabled) {
            trace(state.host, ts.Diagnostics.File_0_exist_use_it_as_a_name_resolution_result, fileName);
        }
        return fileName;
    }
    else {
        if (state.traceEnabled) {
            trace(state.host, ts.Diagnostics.File_0_does_not_exist, fileName);
        }
        failedLookupLocations.push(fileName);
        return undefined;
    }
}
function loadNodeModuleFromDirectory(extensions, candidate, failedLookupLocations, onlyRecordFailures, state) {
    var packageJsonPath = pathToPackageJson(candidate);
    var directoryExists = !onlyRecordFailures && directoryProbablyExists(candidate, state.host);
    if (directoryExists && state.host.fileExists(packageJsonPath)) {
        if (state.traceEnabled) {
            trace(state.host, ts.Diagnostics.Found_package_json_at_0, packageJsonPath);
        }
        var mainOrTypesFile = tryReadPackageJsonMainOrTypes(extensions, packageJsonPath, candidate, state);
        if (mainOrTypesFile) {
            var onlyRecordFailures_1 = !directoryProbablyExists(ts.getDirectoryPath(mainOrTypesFile), state.host);
            var fromExactFile = tryFile(mainOrTypesFile, failedLookupLocations, onlyRecordFailures_1, state);
            if (fromExactFile) {
                var resolved_3 = fromExactFile && resolvedIfExtensionMatches(extensions, fromExactFile);
                if (resolved_3) {
                    return resolved_3;
                }
                if (state.traceEnabled) {
                    trace(state.host, ts.Diagnostics.File_0_has_an_unsupported_extension_so_skipping_it, fromExactFile);
                }
            }
            var resolved = tryAddingExtensions(mainOrTypesFile, 0, failedLookupLocations, onlyRecordFailures_1, state);
            if (resolved) {
                return resolved;
            }
            if (extensions === 1) {
                var resolved_4 = tryAddingExtensions(mainOrTypesFile, 1, failedLookupLocations, onlyRecordFailures_1, state);
                if (resolved_4) {
                    return resolved_4;
                }
            }
        }
        else {
            if (state.traceEnabled) {
                trace(state.host, ts.Diagnostics.package_json_does_not_have_a_types_or_main_field);
            }
        }
    }
    else {
        if (state.traceEnabled) {
            trace(state.host, ts.Diagnostics.File_0_does_not_exist, packageJsonPath);
        }
        failedLookupLocations.push(packageJsonPath);
    }
    return loadModuleFromFile(extensions, ts.combinePaths(candidate, "index"), failedLookupLocations, !directoryExists, state);
}
function resolvedIfExtensionMatches(extensions, path) {
    var extension = ts.tryGetExtensionFromPath(path);
    return extension !== undefined && extensionIsOk(extensions, extension) ? { path: path, extension: extension } : undefined;
}
function extensionIsOk(extensions, extension) {
    switch (extensions) {
        case 1:
            return extension === ts.Extension.Js || extension === ts.Extension.Jsx;
        case 0:
            return extension === ts.Extension.Ts || extension === ts.Extension.Tsx || extension === ts.Extension.Dts;
        case 2:
            return extension === ts.Extension.Dts;
    }
}
function pathToPackageJson(directory) {
    return ts.combinePaths(directory, "package.json");
}
function loadModuleFromNodeModulesFolder(extensions, moduleName, directory, failedLookupLocations, state) {
    var nodeModulesFolder = ts.combinePaths(directory, "node_modules");
    var nodeModulesFolderExists = directoryProbablyExists(nodeModulesFolder, state.host);
    var candidate = ts.normalizePath(ts.combinePaths(nodeModulesFolder, moduleName));
    return loadModuleFromFile(extensions, candidate, failedLookupLocations, !nodeModulesFolderExists, state) ||
        loadNodeModuleFromDirectory(extensions, candidate, failedLookupLocations, !nodeModulesFolderExists, state);
}
function loadModuleFromNodeModules(extensions, moduleName, directory, failedLookupLocations, state, cache) {
    return loadModuleFromNodeModulesWorker(extensions, moduleName, directory, failedLookupLocations, state, false, cache);
}
function loadModuleFromNodeModulesAtTypes(moduleName, directory, failedLookupLocations, state) {
    return loadModuleFromNodeModulesWorker(2, moduleName, directory, failedLookupLocations, state, true, undefined);
}
function loadModuleFromNodeModulesWorker(extensions, moduleName, directory, failedLookupLocations, state, typesOnly, cache) {
    var perModuleNameCache = cache && cache.getOrCreateCacheForModuleName(moduleName);
    return forEachAncestorDirectory(ts.normalizeSlashes(directory), function (ancestorDirectory) {
        if (ts.getBaseFileName(ancestorDirectory) !== "node_modules") {
            var resolutionFromCache = tryFindNonRelativeModuleNameInCache(perModuleNameCache, moduleName, ancestorDirectory, state.traceEnabled, state.host);
            if (resolutionFromCache) {
                return resolutionFromCache;
            }
            return toSearchResult(loadModuleFromNodeModulesOneLevel(extensions, moduleName, ancestorDirectory, failedLookupLocations, state, typesOnly));
        }
    });
}
function loadModuleFromNodeModulesOneLevel(extensions, moduleName, directory, failedLookupLocations, state, typesOnly) {
    if (typesOnly === void 0) { typesOnly = false; }
    var packageResult = typesOnly ? undefined : loadModuleFromNodeModulesFolder(extensions, moduleName, directory, failedLookupLocations, state);
    if (packageResult) {
        return packageResult;
    }
    if (extensions !== 1) {
        return loadModuleFromNodeModulesFolder(2, ts.combinePaths("@types", moduleName), directory, failedLookupLocations, state);
    }
}
function tryFindNonRelativeModuleNameInCache(cache, moduleName, containingDirectory, traceEnabled, host) {
    var result = cache && cache.get(containingDirectory);
    if (result) {
        if (traceEnabled) {
            trace(host, ts.Diagnostics.Resolution_for_module_0_was_found_in_cache, moduleName);
        }
        return { value: result.resolvedModule && { path: result.resolvedModule.resolvedFileName, extension: result.resolvedModule.extension } };
    }
}
function classicNameResolver(moduleName, containingFile, compilerOptions, host, cache) {
    var traceEnabled = isTraceEnabled(compilerOptions, host);
    var state = { compilerOptions: compilerOptions, host: host, traceEnabled: traceEnabled };
    var failedLookupLocations = [];
    var containingDirectory = ts.getDirectoryPath(containingFile);
    var resolved = tryResolve(0) || tryResolve(1);
    return createResolvedModuleWithFailedLookupLocations(resolved && resolved.value, false, failedLookupLocations);
    function tryResolve(extensions) {
        var resolvedUsingSettings = tryLoadModuleUsingOptionalResolutionSettings(extensions, moduleName, containingDirectory, loadModuleFromFile, failedLookupLocations, state);
        if (resolvedUsingSettings) {
            return { value: resolvedUsingSettings };
        }
        var perModuleNameCache = cache && cache.getOrCreateCacheForModuleName(moduleName);
        if (moduleHasNonRelativeName(moduleName)) {
            var resolved_5 = forEachAncestorDirectory(containingDirectory, function (directory) {
                var resolutionFromCache = tryFindNonRelativeModuleNameInCache(perModuleNameCache, moduleName, directory, traceEnabled, host);
                if (resolutionFromCache) {
                    return resolutionFromCache;
                }
                var searchName = ts.normalizePath(ts.combinePaths(directory, moduleName));
                return toSearchResult(loadModuleFromFile(extensions, searchName, failedLookupLocations, false, state));
            });
            if (resolved_5) {
                return resolved_5;
            }
            if (extensions === 0) {
                return loadModuleFromNodeModulesAtTypes(moduleName, containingDirectory, failedLookupLocations, state);
            }
        }
        else {
            var candidate = ts.normalizePath(ts.combinePaths(containingDirectory, moduleName));
            return toSearchResult(loadModuleFromFile(extensions, candidate, failedLookupLocations, false, state));
        }
    }
}
ts.classicNameResolver = classicNameResolver;
function loadModuleFromGlobalCache(moduleName, projectName, compilerOptions, host, globalCache) {
    var traceEnabled = isTraceEnabled(compilerOptions, host);
    if (traceEnabled) {
        trace(host, ts.Diagnostics.Auto_discovery_for_typings_is_enabled_in_project_0_Running_extra_resolution_pass_for_module_1_using_cache_location_2, projectName, moduleName, globalCache);
    }
    var state = { compilerOptions: compilerOptions, host: host, traceEnabled: traceEnabled };
    var failedLookupLocations = [];
    var resolved = loadModuleFromNodeModulesOneLevel(2, moduleName, globalCache, failedLookupLocations, state);
    return createResolvedModuleWithFailedLookupLocations(resolved, true, failedLookupLocations);
}
ts.loadModuleFromGlobalCache = loadModuleFromGlobalCache;
function toSearchResult(value) {
    return value !== undefined ? { value: value } : undefined;
}
function forEachAncestorDirectory(directory, callback) {
    while (true) {
        var result = callback(directory);
        if (result !== undefined) {
            return result;
        }
        var parentPath = ts.getDirectoryPath(directory);
        if (parentPath === directory) {
            return undefined;
        }
        directory = parentPath;
    }
}

})(ts || (ts = {})); var ts; (function (ts) {

var ambientModuleSymbolRegex = /^".+"$/;
var nextSymbolId = 1;
var nextNodeId = 1;
var nextMergeId = 1;
var nextFlowId = 1;
function getNodeId(node) {
    if (!node.id) {
        node.id = nextNodeId;
        nextNodeId++;
    }
    return node.id;
}
ts.getNodeId = getNodeId;
function getSymbolId(symbol) {
    if (!symbol.id) {
        symbol.id = nextSymbolId;
        nextSymbolId++;
    }
    return symbol.id;
}
ts.getSymbolId = getSymbolId;
function createTypeChecker(host, produceDiagnostics) {
    var cancellationToken;
    var requestedExternalEmitHelpers;
    var externalHelpersModule;
    var Symbol = ts.objectAllocator.getSymbolConstructor();
    var Type = ts.objectAllocator.getTypeConstructor();
    var Signature = ts.objectAllocator.getSignatureConstructor();
    var typeCount = 0;
    var symbolCount = 0;
    var emptyArray = [];
    var emptySymbols = ts.createMap();
    var compilerOptions = host.getCompilerOptions();
    var languageVersion = compilerOptions.target || 0;
    var modulekind = ts.getEmitModuleKind(compilerOptions);
    var noUnusedIdentifiers = !!compilerOptions.noUnusedLocals || !!compilerOptions.noUnusedParameters;
    var allowSyntheticDefaultImports = typeof compilerOptions.allowSyntheticDefaultImports !== "undefined" ? compilerOptions.allowSyntheticDefaultImports : modulekind === ts.ModuleKind.System;
    var strictNullChecks = compilerOptions.strictNullChecks;
    var emitResolver = createResolver();
    var undefinedSymbol = createSymbol(4 | 67108864, "undefined");
    undefinedSymbol.declarations = [];
    var argumentsSymbol = createSymbol(4 | 67108864, "arguments");
    var checker = {
        getNodeCount: function () { return ts.sum(host.getSourceFiles(), "nodeCount"); },
        getIdentifierCount: function () { return ts.sum(host.getSourceFiles(), "identifierCount"); },
        getSymbolCount: function () { return ts.sum(host.getSourceFiles(), "symbolCount") + symbolCount; },
        getTypeCount: function () { return typeCount; },
        isUndefinedSymbol: function (symbol) { return symbol === undefinedSymbol; },
        isArgumentsSymbol: function (symbol) { return symbol === argumentsSymbol; },
        isUnknownSymbol: function (symbol) { return symbol === unknownSymbol; },
        getDiagnostics: getDiagnostics,
        getGlobalDiagnostics: getGlobalDiagnostics,
        getTypeOfSymbolAtLocation: getTypeOfSymbolAtLocation,
        getSymbolsOfParameterPropertyDeclaration: getSymbolsOfParameterPropertyDeclaration,
        getDeclaredTypeOfSymbol: getDeclaredTypeOfSymbol,
        getPropertiesOfType: getPropertiesOfType,
        getPropertyOfType: getPropertyOfType,
        getSignaturesOfType: getSignaturesOfType,
        getIndexTypeOfType: getIndexTypeOfType,
        getBaseTypes: getBaseTypes,
        getReturnTypeOfSignature: getReturnTypeOfSignature,
        getNonNullableType: getNonNullableType,
        getSymbolsInScope: getSymbolsInScope,
        getSymbolAtLocation: getSymbolAtLocation,
        getShorthandAssignmentValueSymbol: getShorthandAssignmentValueSymbol,
        getExportSpecifierLocalTargetSymbol: getExportSpecifierLocalTargetSymbol,
        getTypeAtLocation: getTypeOfNode,
        getPropertySymbolOfDestructuringAssignment: getPropertySymbolOfDestructuringAssignment,
        typeToString: typeToString,
        getSymbolDisplayBuilder: getSymbolDisplayBuilder,
        symbolToString: symbolToString,
        getAugmentedPropertiesOfType: getAugmentedPropertiesOfType,
        getRootSymbols: getRootSymbols,
        getContextualType: getContextualType,
        getFullyQualifiedName: getFullyQualifiedName,
        getResolvedSignature: getResolvedSignature,
        getConstantValue: getConstantValue,
        isValidPropertyAccess: isValidPropertyAccess,
        getSignatureFromDeclaration: getSignatureFromDeclaration,
        isImplementationOfOverload: isImplementationOfOverload,
        getAliasedSymbol: resolveAlias,
        getEmitResolver: getEmitResolver,
        getExportsOfModule: getExportsOfModuleAsArray,
        getAmbientModules: getAmbientModules,
        getJsxElementAttributesType: getJsxElementAttributesType,
        getJsxIntrinsicTagNames: getJsxIntrinsicTagNames,
        isOptionalParameter: isOptionalParameter,
        tryGetMemberInModuleExports: tryGetMemberInModuleExports,
        tryFindAmbientModuleWithoutAugmentations: function (moduleName) {
            return tryFindAmbientModule(moduleName, false);
        }
    };
    var tupleTypes = [];
    var unionTypes = ts.createMap();
    var intersectionTypes = ts.createMap();
    var stringLiteralTypes = ts.createMap();
    var numericLiteralTypes = ts.createMap();
    var indexedAccessTypes = ts.createMap();
    var evolvingArrayTypes = [];
    var unknownSymbol = createSymbol(4 | 67108864, "unknown");
    var resolvingSymbol = createSymbol(67108864, "__resolving__");
    var anyType = createIntrinsicType(1, "any");
    var autoType = createIntrinsicType(1, "any");
    var unknownType = createIntrinsicType(1, "unknown");
    var undefinedType = createIntrinsicType(2048, "undefined");
    var undefinedWideningType = strictNullChecks ? undefinedType : createIntrinsicType(2048 | 2097152, "undefined");
    var nullType = createIntrinsicType(4096, "null");
    var nullWideningType = strictNullChecks ? nullType : createIntrinsicType(4096 | 2097152, "null");
    var stringType = createIntrinsicType(2, "string");
    var numberType = createIntrinsicType(4, "number");
    var trueType = createIntrinsicType(128, "true");
    var falseType = createIntrinsicType(128, "false");
    var booleanType = createBooleanType([trueType, falseType]);
    var esSymbolType = createIntrinsicType(512, "symbol");
    var voidType = createIntrinsicType(1024, "void");
    var neverType = createIntrinsicType(8192, "never");
    var silentNeverType = createIntrinsicType(8192, "never");
    var emptyObjectType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
    var emptyTypeLiteralSymbol = createSymbol(2048 | 67108864, "__type");
    emptyTypeLiteralSymbol.members = ts.createMap();
    var emptyTypeLiteralType = createAnonymousType(emptyTypeLiteralSymbol, emptySymbols, emptyArray, emptyArray, undefined, undefined);
    var emptyGenericType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
    emptyGenericType.instantiations = ts.createMap();
    var anyFunctionType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
    anyFunctionType.flags |= 8388608;
    var noConstraintType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
    var anySignature = createSignature(undefined, undefined, undefined, emptyArray, anyType, undefined, 0, false, false);
    var unknownSignature = createSignature(undefined, undefined, undefined, emptyArray, unknownType, undefined, 0, false, false);
    var resolvingSignature = createSignature(undefined, undefined, undefined, emptyArray, anyType, undefined, 0, false, false);
    var silentNeverSignature = createSignature(undefined, undefined, undefined, emptyArray, silentNeverType, undefined, 0, false, false);
    var enumNumberIndexInfo = createIndexInfo(stringType, true);
    var globals = ts.createMap();
    var patternAmbientModules;
    var getGlobalESSymbolConstructorSymbol;
    var getGlobalPromiseConstructorSymbol;
    var tryGetGlobalPromiseConstructorSymbol;
    var globalObjectType;
    var globalFunctionType;
    var globalArrayType;
    var globalReadonlyArrayType;
    var globalStringType;
    var globalNumberType;
    var globalBooleanType;
    var globalRegExpType;
    var anyArrayType;
    var autoArrayType;
    var anyReadonlyArrayType;
    var getGlobalTemplateStringsArrayType;
    var getGlobalESSymbolType;
    var getGlobalIterableType;
    var getGlobalIteratorType;
    var getGlobalIterableIteratorType;
    var getGlobalClassDecoratorType;
    var getGlobalParameterDecoratorType;
    var getGlobalPropertyDecoratorType;
    var getGlobalMethodDecoratorType;
    var getGlobalTypedPropertyDescriptorType;
    var getGlobalPromiseType;
    var tryGetGlobalPromiseType;
    var getGlobalPromiseLikeType;
    var getInstantiatedGlobalPromiseLikeType;
    var getGlobalPromiseConstructorLikeType;
    var getGlobalThenableType;
    var jsxElementClassType;
    var deferredNodes;
    var deferredUnusedIdentifierNodes;
    var flowLoopStart = 0;
    var flowLoopCount = 0;
    var visitedFlowCount = 0;
    var emptyStringType = getLiteralTypeForText(32, "");
    var zeroType = getLiteralTypeForText(64, "0");
    var resolutionTargets = [];
    var resolutionResults = [];
    var resolutionPropertyNames = [];
    var mergedSymbols = [];
    var symbolLinks = [];
    var nodeLinks = [];
    var flowLoopCaches = [];
    var flowLoopNodes = [];
    var flowLoopKeys = [];
    var flowLoopTypes = [];
    var visitedFlowNodes = [];
    var visitedFlowTypes = [];
    var potentialThisCollisions = [];
    var awaitedTypeStack = [];
    var diagnostics = ts.createDiagnosticCollection();
    var typeofEQFacts = ts.createMap({
        "string": 1,
        "number": 2,
        "boolean": 4,
        "symbol": 8,
        "undefined": 16384,
        "object": 16,
        "function": 32
    });
    var typeofNEFacts = ts.createMap({
        "string": 128,
        "number": 256,
        "boolean": 512,
        "symbol": 1024,
        "undefined": 131072,
        "object": 2048,
        "function": 4096
    });
    var typeofTypesByName = ts.createMap({
        "string": stringType,
        "number": numberType,
        "boolean": booleanType,
        "symbol": esSymbolType,
        "undefined": undefinedType
    });
    var jsxElementType;
    var _jsxNamespace;
    var _jsxFactoryEntity;
    var jsxTypes = ts.createMap();
    var JsxNames = {
        JSX: "JSX",
        IntrinsicElements: "IntrinsicElements",
        ElementClass: "ElementClass",
        ElementAttributesPropertyNameContainer: "ElementAttributesProperty",
        Element: "Element",
        IntrinsicAttributes: "IntrinsicAttributes",
        IntrinsicClassAttributes: "IntrinsicClassAttributes"
    };
    var subtypeRelation = ts.createMap();
    var assignableRelation = ts.createMap();
    var comparableRelation = ts.createMap();
    var identityRelation = ts.createMap();
    var enumRelation = ts.createMap();
    var _displayBuilder;
    var builtinGlobals = ts.createMap();
    builtinGlobals[undefinedSymbol.name] = undefinedSymbol;
    initializeTypeChecker();
    return checker;
    function getJsxNamespace() {
        if (_jsxNamespace === undefined) {
            _jsxNamespace = "React";
            if (compilerOptions.jsxFactory) {
                _jsxFactoryEntity = ts.parseIsolatedEntityName(compilerOptions.jsxFactory, languageVersion);
                if (_jsxFactoryEntity) {
                    _jsxNamespace = getFirstIdentifier(_jsxFactoryEntity).text;
                }
            }
            else if (compilerOptions.reactNamespace) {
                _jsxNamespace = compilerOptions.reactNamespace;
            }
        }
        return _jsxNamespace;
    }
    function getEmitResolver(sourceFile, cancellationToken) {
        getDiagnostics(sourceFile, cancellationToken);
        return emitResolver;
    }
    function error(location, message, arg0, arg1, arg2) {
        var diagnostic = location
            ? ts.createDiagnosticForNode(location, message, arg0, arg1, arg2)
            : ts.createCompilerDiagnostic(message, arg0, arg1, arg2);
        diagnostics.add(diagnostic);
    }
    function createSymbol(flags, name) {
        symbolCount++;
        return new Symbol(flags, name);
    }
    function getExcludedSymbolFlags(flags) {
        var result = 0;
        if (flags & 2)
            result |= 107455;
        if (flags & 1)
            result |= 107454;
        if (flags & 4)
            result |= 0;
        if (flags & 8)
            result |= 900095;
        if (flags & 16)
            result |= 106927;
        if (flags & 32)
            result |= 899519;
        if (flags & 64)
            result |= 792968;
        if (flags & 256)
            result |= 899327;
        if (flags & 128)
            result |= 899967;
        if (flags & 512)
            result |= 106639;
        if (flags & 8192)
            result |= 99263;
        if (flags & 32768)
            result |= 41919;
        if (flags & 65536)
            result |= 74687;
        if (flags & 262144)
            result |= 530920;
        if (flags & 524288)
            result |= 793064;
        if (flags & 8388608)
            result |= 8388608;
        return result;
    }
    function recordMergedSymbol(target, source) {
        if (!source.mergeId) {
            source.mergeId = nextMergeId;
            nextMergeId++;
        }
        mergedSymbols[source.mergeId] = target;
    }
    function cloneSymbol(symbol) {
        var result = createSymbol(symbol.flags | 33554432, symbol.name);
        result.declarations = symbol.declarations.slice(0);
        result.parent = symbol.parent;
        if (symbol.valueDeclaration)
            result.valueDeclaration = symbol.valueDeclaration;
        if (symbol.constEnumOnlyModule)
            result.constEnumOnlyModule = true;
        if (symbol.members)
            result.members = ts.cloneMap(symbol.members);
        if (symbol.exports)
            result.exports = ts.cloneMap(symbol.exports);
        recordMergedSymbol(result, symbol);
        return result;
    }
    function mergeSymbol(target, source) {
        if (!(target.flags & getExcludedSymbolFlags(source.flags))) {
            if (source.flags & 512 && target.flags & 512 && target.constEnumOnlyModule && !source.constEnumOnlyModule) {
                target.constEnumOnlyModule = false;
            }
            target.flags |= source.flags;
            if (source.valueDeclaration &&
                (!target.valueDeclaration ||
                    (target.valueDeclaration.kind === 230 && source.valueDeclaration.kind !== 230))) {
                target.valueDeclaration = source.valueDeclaration;
            }
            ts.addRange(target.declarations, source.declarations);
            if (source.members) {
                if (!target.members)
                    target.members = ts.createMap();
                mergeSymbolTable(target.members, source.members);
            }
            if (source.exports) {
                if (!target.exports)
                    target.exports = ts.createMap();
                mergeSymbolTable(target.exports, source.exports);
            }
            recordMergedSymbol(target, source);
        }
        else {
            var message_2 = target.flags & 2 || source.flags & 2
                ? ts.Diagnostics.Cannot_redeclare_block_scoped_variable_0 : ts.Diagnostics.Duplicate_identifier_0;
            ts.forEach(source.declarations, function (node) {
                error(node.name ? node.name : node, message_2, symbolToString(source));
            });
            ts.forEach(target.declarations, function (node) {
                error(node.name ? node.name : node, message_2, symbolToString(source));
            });
        }
    }
    function mergeSymbolTable(target, source) {
        for (var id in source) {
            var targetSymbol = target[id];
            if (!targetSymbol) {
                target[id] = source[id];
            }
            else {
                if (!(targetSymbol.flags & 33554432)) {
                    target[id] = targetSymbol = cloneSymbol(targetSymbol);
                }
                mergeSymbol(targetSymbol, source[id]);
            }
        }
    }
    function mergeModuleAugmentation(moduleName) {
        var moduleAugmentation = moduleName.parent;
        if (moduleAugmentation.symbol.declarations[0] !== moduleAugmentation) {
            ts.Debug.assert(moduleAugmentation.symbol.declarations.length > 1);
            return;
        }
        if (ts.isGlobalScopeAugmentation(moduleAugmentation)) {
            mergeSymbolTable(globals, moduleAugmentation.symbol.exports);
        }
        else {
            var moduleNotFoundError = !ts.isInAmbientContext(moduleName.parent.parent)
                ? ts.Diagnostics.Invalid_module_name_in_augmentation_module_0_cannot_be_found
                : undefined;
            var mainModule = resolveExternalModuleNameWorker(moduleName, moduleName, moduleNotFoundError, true);
            if (!mainModule) {
                return;
            }
            mainModule = resolveExternalModuleSymbol(mainModule);
            if (mainModule.flags & 1920) {
                mainModule = mainModule.flags & 33554432 ? mainModule : cloneSymbol(mainModule);
                mergeSymbol(mainModule, moduleAugmentation.symbol);
            }
            else {
                error(moduleName, ts.Diagnostics.Cannot_augment_module_0_because_it_resolves_to_a_non_module_entity, moduleName.text);
            }
        }
    }
    function addToSymbolTable(target, source, message) {
        for (var id in source) {
            if (target[id]) {
                ts.forEach(target[id].declarations, addDeclarationDiagnostic(id, message));
            }
            else {
                target[id] = source[id];
            }
        }
        function addDeclarationDiagnostic(id, message) {
            return function (declaration) { return diagnostics.add(ts.createDiagnosticForNode(declaration, message, id)); };
        }
    }
    function getSymbolLinks(symbol) {
        if (symbol.flags & 67108864)
            return symbol;
        var id = getSymbolId(symbol);
        return symbolLinks[id] || (symbolLinks[id] = {});
    }
    function getNodeLinks(node) {
        var nodeId = getNodeId(node);
        return nodeLinks[nodeId] || (nodeLinks[nodeId] = { flags: 0 });
    }
    function getObjectFlags(type) {
        return type.flags & 32768 ? type.objectFlags : 0;
    }
    function isGlobalSourceFile(node) {
        return node.kind === 261 && !ts.isExternalOrCommonJsModule(node);
    }
    function getSymbol(symbols, name, meaning) {
        if (meaning) {
            var symbol = symbols[name];
            if (symbol) {
                ts.Debug.assert((symbol.flags & 16777216) === 0, "Should never get an instantiated symbol here.");
                if (symbol.flags & meaning) {
                    return symbol;
                }
                if (symbol.flags & 8388608) {
                    var target = resolveAlias(symbol);
                    if (target === unknownSymbol || target.flags & meaning) {
                        return symbol;
                    }
                }
            }
        }
    }
    function getSymbolsOfParameterPropertyDeclaration(parameter, parameterName) {
        var constructorDeclaration = parameter.parent;
        var classDeclaration = parameter.parent.parent;
        var parameterSymbol = getSymbol(constructorDeclaration.locals, parameterName, 107455);
        var propertySymbol = getSymbol(classDeclaration.symbol.members, parameterName, 107455);
        if (parameterSymbol && propertySymbol) {
            return [parameterSymbol, propertySymbol];
        }
        ts.Debug.fail("There should exist two symbols, one as property declaration and one as parameter declaration");
    }
    function isBlockScopedNameDeclaredBeforeUse(declaration, usage) {
        var declarationFile = ts.getSourceFileOfNode(declaration);
        var useFile = ts.getSourceFileOfNode(usage);
        if (declarationFile !== useFile) {
            if ((modulekind && (declarationFile.externalModuleIndicator || useFile.externalModuleIndicator)) ||
                (!compilerOptions.outFile && !compilerOptions.out)) {
                return true;
            }
            if (isUsedInFunctionOrNonStaticProperty(usage)) {
                return true;
            }
            var sourceFiles = host.getSourceFiles();
            return ts.indexOf(sourceFiles, declarationFile) <= ts.indexOf(sourceFiles, useFile);
        }
        if (declaration.pos <= usage.pos) {
            if (declaration.kind === 174) {
                var errorBindingElement = ts.getAncestor(usage, 174);
                if (errorBindingElement) {
                    return getAncestorBindingPattern(errorBindingElement) !== getAncestorBindingPattern(declaration) ||
                        declaration.pos < errorBindingElement.pos;
                }
                return isBlockScopedNameDeclaredBeforeUse(ts.getAncestor(declaration, 223), usage);
            }
            else if (declaration.kind === 223) {
                return !isImmediatelyUsedInInitializerOfBlockScopedVariable(declaration, usage);
            }
            return true;
        }
        var container = ts.getEnclosingBlockScopeContainer(declaration);
        return isUsedInFunctionOrNonStaticProperty(usage, container);
        function isImmediatelyUsedInInitializerOfBlockScopedVariable(declaration, usage) {
            var container = ts.getEnclosingBlockScopeContainer(declaration);
            switch (declaration.parent.parent.kind) {
                case 205:
                case 211:
                case 213:
                    if (isSameScopeDescendentOf(usage, declaration, container)) {
                        return true;
                    }
                    break;
            }
            switch (declaration.parent.parent.kind) {
                case 212:
                case 213:
                    if (isSameScopeDescendentOf(usage, declaration.parent.parent.expression, container)) {
                        return true;
                    }
            }
            return false;
        }
        function isUsedInFunctionOrNonStaticProperty(usage, container) {
            var current = usage;
            while (current) {
                if (current === container) {
                    return false;
                }
                if (ts.isFunctionLike(current)) {
                    return true;
                }
                var initializerOfNonStaticProperty = current.parent &&
                    current.parent.kind === 147 &&
                    (ts.getModifierFlags(current.parent) & 32) === 0 &&
                    current.parent.initializer === current;
                if (initializerOfNonStaticProperty) {
                    return true;
                }
                current = current.parent;
            }
            return false;
        }
        function getAncestorBindingPattern(node) {
            while (node) {
                if (ts.isBindingPattern(node)) {
                    return node;
                }
                node = node.parent;
            }
            return undefined;
        }
    }
    function resolveName(location, name, meaning, nameNotFoundMessage, nameArg) {
        var result;
        var lastLocation;
        var propertyWithInvalidInitializer;
        var errorLocation = location;
        var grandparent;
        var isInExternalModule = false;
        loop: while (location) {
            if (location.locals && !isGlobalSourceFile(location)) {
                if (result = getSymbol(location.locals, name, meaning)) {
                    var useResult = true;
                    if (ts.isFunctionLike(location) && lastLocation && lastLocation !== location.body) {
                        if (meaning & result.flags & 793064 && lastLocation.kind !== 278) {
                            useResult = result.flags & 262144
                                ? lastLocation === location.type ||
                                    lastLocation.kind === 144 ||
                                    lastLocation.kind === 143
                                : false;
                        }
                        if (meaning & 107455 && result.flags & 1) {
                            useResult =
                                lastLocation.kind === 144 ||
                                    (lastLocation === location.type &&
                                        result.valueDeclaration.kind === 144);
                        }
                    }
                    if (useResult) {
                        break loop;
                    }
                    else {
                        result = undefined;
                    }
                }
            }
            switch (location.kind) {
                case 261:
                    if (!ts.isExternalOrCommonJsModule(location))
                        break;
                    isInExternalModule = true;
                case 230:
                    var moduleExports = getSymbolOfNode(location).exports;
                    if (location.kind === 261 || ts.isAmbientModule(location)) {
                        if (result = moduleExports["default"]) {
                            var localSymbol = ts.getLocalSymbolForExportDefault(result);
                            if (localSymbol && (result.flags & meaning) && localSymbol.name === name) {
                                break loop;
                            }
                            result = undefined;
                        }
                        if (moduleExports[name] &&
                            moduleExports[name].flags === 8388608 &&
                            ts.getDeclarationOfKind(moduleExports[name], 243)) {
                            break;
                        }
                    }
                    if (result = getSymbol(moduleExports, name, meaning & 8914931)) {
                        break loop;
                    }
                    break;
                case 229:
                    if (result = getSymbol(getSymbolOfNode(location).exports, name, meaning & 8)) {
                        break loop;
                    }
                    break;
                case 147:
                case 146:
                    if (ts.isClassLike(location.parent) && !(ts.getModifierFlags(location) & 32)) {
                        var ctor = findConstructorDeclaration(location.parent);
                        if (ctor && ctor.locals) {
                            if (getSymbol(ctor.locals, name, meaning & 107455)) {
                                propertyWithInvalidInitializer = location;
                            }
                        }
                    }
                    break;
                case 226:
                case 197:
                case 227:
                    if (result = getSymbol(getSymbolOfNode(location).members, name, meaning & 793064)) {
                        if (lastLocation && ts.getModifierFlags(lastLocation) & 32) {
                            error(errorLocation, ts.Diagnostics.Static_members_cannot_reference_class_type_parameters);
                            return undefined;
                        }
                        break loop;
                    }
                    if (location.kind === 197 && meaning & 32) {
                        var className = location.name;
                        if (className && name === className.text) {
                            result = location.symbol;
                            break loop;
                        }
                    }
                    break;
                case 142:
                    grandparent = location.parent.parent;
                    if (ts.isClassLike(grandparent) || grandparent.kind === 227) {
                        if (result = getSymbol(getSymbolOfNode(grandparent).members, name, meaning & 793064)) {
                            error(errorLocation, ts.Diagnostics.A_computed_property_name_cannot_reference_a_type_parameter_from_its_containing_type);
                            return undefined;
                        }
                    }
                    break;
                case 149:
                case 148:
                case 150:
                case 151:
                case 152:
                case 225:
                case 185:
                    if (meaning & 3 && name === "arguments") {
                        result = argumentsSymbol;
                        break loop;
                    }
                    break;
                case 184:
                    if (meaning & 3 && name === "arguments") {
                        result = argumentsSymbol;
                        break loop;
                    }
                    if (meaning & 16) {
                        var functionName = location.name;
                        if (functionName && name === functionName.text) {
                            result = location.symbol;
                            break loop;
                        }
                    }
                    break;
                case 145:
                    if (location.parent && location.parent.kind === 144) {
                        location = location.parent;
                    }
                    if (location.parent && ts.isClassElement(location.parent)) {
                        location = location.parent;
                    }
                    break;
            }
            lastLocation = location;
            location = location.parent;
        }
        if (result && nameNotFoundMessage && noUnusedIdentifiers) {
            result.isReferenced = true;
        }
        if (!result) {
            result = getSymbol(globals, name, meaning);
        }
        if (!result) {
            if (nameNotFoundMessage) {
                if (!errorLocation ||
                    !checkAndReportErrorForMissingPrefix(errorLocation, name, nameArg) &&
                        !checkAndReportErrorForExtendingInterface(errorLocation) &&
                        !checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) &&
                        !checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning)) {
                    error(errorLocation, nameNotFoundMessage, typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg));
                }
            }
            return undefined;
        }
        if (nameNotFoundMessage) {
            if (propertyWithInvalidInitializer) {
                var propertyName = propertyWithInvalidInitializer.name;
                error(errorLocation, ts.Diagnostics.Initializer_of_instance_member_variable_0_cannot_reference_identifier_1_declared_in_the_constructor, ts.declarationNameToString(propertyName), typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg));
                return undefined;
            }
            if (meaning & 2) {
                var exportOrLocalSymbol = getExportSymbolOfValueSymbolIfExported(result);
                if (exportOrLocalSymbol.flags & 2) {
                    checkResolvedBlockScopedVariable(exportOrLocalSymbol, errorLocation);
                }
            }
            if (result && isInExternalModule && (meaning & 107455) === 107455) {
                var decls = result.declarations;
                if (decls && decls.length === 1 && decls[0].kind === 233) {
                    error(errorLocation, ts.Diagnostics._0_refers_to_a_UMD_global_but_the_current_file_is_a_module_Consider_adding_an_import_instead, name);
                }
            }
        }
        return result;
    }
    function checkAndReportErrorForMissingPrefix(errorLocation, name, nameArg) {
        if ((errorLocation.kind === 70 && (isTypeReferenceIdentifier(errorLocation)) || isInTypeQuery(errorLocation))) {
            return false;
        }
        var container = ts.getThisContainer(errorLocation, true);
        var location = container;
        while (location) {
            if (ts.isClassLike(location.parent)) {
                var classSymbol = getSymbolOfNode(location.parent);
                if (!classSymbol) {
                    break;
                }
                var constructorType = getTypeOfSymbol(classSymbol);
                if (getPropertyOfType(constructorType, name)) {
                    error(errorLocation, ts.Diagnostics.Cannot_find_name_0_Did_you_mean_the_static_member_1_0, typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg), symbolToString(classSymbol));
                    return true;
                }
                if (location === container && !(ts.getModifierFlags(location) & 32)) {
                    var instanceType = getDeclaredTypeOfSymbol(classSymbol).thisType;
                    if (getPropertyOfType(instanceType, name)) {
                        error(errorLocation, ts.Diagnostics.Cannot_find_name_0_Did_you_mean_the_instance_member_this_0, typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg));
                        return true;
                    }
                }
            }
            location = location.parent;
        }
        return false;
    }
    function checkAndReportErrorForExtendingInterface(errorLocation) {
        var expression = getEntityNameForExtendingInterface(errorLocation);
        var isError = !!(expression && resolveEntityName(expression, 64, true));
        if (isError) {
            error(errorLocation, ts.Diagnostics.Cannot_extend_an_interface_0_Did_you_mean_implements, ts.getTextOfNode(expression));
        }
        return isError;
    }
    function getEntityNameForExtendingInterface(node) {
        switch (node.kind) {
            case 70:
            case 177:
                return node.parent ? getEntityNameForExtendingInterface(node.parent) : undefined;
            case 199:
                ts.Debug.assert(ts.isEntityNameExpression(node.expression));
                return node.expression;
            default:
                return undefined;
        }
    }
    function checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) {
        if (meaning === 1920) {
            var symbol = resolveSymbol(resolveName(errorLocation, name, 793064 & ~107455, undefined, undefined));
            if (symbol) {
                error(errorLocation, ts.Diagnostics._0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here, name);
                return true;
            }
        }
        return false;
    }
    function checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning) {
        if (meaning & (107455 & ~1024)) {
            var symbol = resolveSymbol(resolveName(errorLocation, name, 793064 & ~107455, undefined, undefined));
            if (symbol && !(symbol.flags & 1024)) {
                error(errorLocation, ts.Diagnostics._0_only_refers_to_a_type_but_is_being_used_as_a_value_here, name);
                return true;
            }
        }
        return false;
    }
    function checkResolvedBlockScopedVariable(result, errorLocation) {
        ts.Debug.assert((result.flags & 2) !== 0);
        var declaration = ts.forEach(result.declarations, function (d) { return ts.isBlockOrCatchScoped(d) ? d : undefined; });
        ts.Debug.assert(declaration !== undefined, "Block-scoped variable declaration is undefined");
        if (!ts.isInAmbientContext(declaration) && !isBlockScopedNameDeclaredBeforeUse(declaration, errorLocation)) {
            error(errorLocation, ts.Diagnostics.Block_scoped_variable_0_used_before_its_declaration, ts.declarationNameToString(declaration.name));
        }
    }
    function isSameScopeDescendentOf(initial, parent, stopAt) {
        if (!parent) {
            return false;
        }
        for (var current = initial; current && current !== stopAt && !ts.isFunctionLike(current); current = current.parent) {
            if (current === parent) {
                return true;
            }
        }
        return false;
    }
    function getAnyImportSyntax(node) {
        if (ts.isAliasSymbolDeclaration(node)) {
            if (node.kind === 234) {
                return node;
            }
            while (node && node.kind !== 235) {
                node = node.parent;
            }
            return node;
        }
    }
    function getDeclarationOfAliasSymbol(symbol) {
        return ts.find(symbol.declarations, ts.isAliasSymbolDeclaration);
    }
    function getTargetOfImportEqualsDeclaration(node) {
        if (node.moduleReference.kind === 245) {
            return resolveExternalModuleSymbol(resolveExternalModuleName(node, ts.getExternalModuleImportEqualsDeclarationExpression(node)));
        }
        return getSymbolOfPartOfRightHandSideOfImportEquals(node.moduleReference);
    }
    function getTargetOfImportClause(node) {
        var moduleSymbol = resolveExternalModuleName(node, node.parent.moduleSpecifier);
        if (moduleSymbol) {
            var exportDefaultSymbol = ts.isShorthandAmbientModuleSymbol(moduleSymbol) ?
                moduleSymbol :
                moduleSymbol.exports["export="] ?
                    getPropertyOfType(getTypeOfSymbol(moduleSymbol.exports["export="]), "default") :
                    resolveSymbol(moduleSymbol.exports["default"]);
            if (!exportDefaultSymbol && !allowSyntheticDefaultImports) {
                error(node.name, ts.Diagnostics.Module_0_has_no_default_export, symbolToString(moduleSymbol));
            }
            else if (!exportDefaultSymbol && allowSyntheticDefaultImports) {
                return resolveExternalModuleSymbol(moduleSymbol) || resolveSymbol(moduleSymbol);
            }
            return exportDefaultSymbol;
        }
    }
    function getTargetOfNamespaceImport(node) {
        var moduleSpecifier = node.parent.parent.moduleSpecifier;
        return resolveESModuleSymbol(resolveExternalModuleName(node, moduleSpecifier), moduleSpecifier);
    }
    function combineValueAndTypeSymbols(valueSymbol, typeSymbol) {
        if (valueSymbol.flags & (793064 | 1920)) {
            return valueSymbol;
        }
        var result = createSymbol(valueSymbol.flags | typeSymbol.flags, valueSymbol.name);
        result.declarations = ts.concatenate(valueSymbol.declarations, typeSymbol.declarations);
        result.parent = valueSymbol.parent || typeSymbol.parent;
        if (valueSymbol.valueDeclaration)
            result.valueDeclaration = valueSymbol.valueDeclaration;
        if (typeSymbol.members)
            result.members = typeSymbol.members;
        if (valueSymbol.exports)
            result.exports = valueSymbol.exports;
        return result;
    }
    function getExportOfModule(symbol, name) {
        if (symbol.flags & 1536) {
            var exportedSymbol = getExportsOfSymbol(symbol)[name];
            if (exportedSymbol) {
                return resolveSymbol(exportedSymbol);
            }
        }
    }
    function getPropertyOfVariable(symbol, name) {
        if (symbol.flags & 3) {
            var typeAnnotation = symbol.valueDeclaration.type;
            if (typeAnnotation) {
                return resolveSymbol(getPropertyOfType(getTypeFromTypeNode(typeAnnotation), name));
            }
        }
    }
    function getExternalModuleMember(node, specifier) {
        var moduleSymbol = resolveExternalModuleName(node, node.moduleSpecifier);
        var targetSymbol = resolveESModuleSymbol(moduleSymbol, node.moduleSpecifier);
        if (targetSymbol) {
            var name_16 = specifier.propertyName || specifier.name;
            if (name_16.text) {
                if (ts.isShorthandAmbientModuleSymbol(moduleSymbol)) {
                    return moduleSymbol;
                }
                var symbolFromVariable = void 0;
                if (moduleSymbol && moduleSymbol.exports && moduleSymbol.exports["export="]) {
                    symbolFromVariable = getPropertyOfType(getTypeOfSymbol(targetSymbol), name_16.text);
                }
                else {
                    symbolFromVariable = getPropertyOfVariable(targetSymbol, name_16.text);
                }
                symbolFromVariable = resolveSymbol(symbolFromVariable);
                var symbolFromModule = getExportOfModule(targetSymbol, name_16.text);
                if (!symbolFromModule && allowSyntheticDefaultImports && name_16.text === "default") {
                    symbolFromModule = resolveExternalModuleSymbol(moduleSymbol) || resolveSymbol(moduleSymbol);
                }
                var symbol = symbolFromModule && symbolFromVariable ?
                    combineValueAndTypeSymbols(symbolFromVariable, symbolFromModule) :
                    symbolFromModule || symbolFromVariable;
                if (!symbol) {
                    error(name_16, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(moduleSymbol), ts.declarationNameToString(name_16));
                }
                return symbol;
            }
        }
    }
    function getTargetOfImportSpecifier(node) {
        return getExternalModuleMember(node.parent.parent.parent, node);
    }
    function getTargetOfNamespaceExportDeclaration(node) {
        return resolveExternalModuleSymbol(node.parent.symbol);
    }
    function getTargetOfExportSpecifier(node) {
        return node.parent.parent.moduleSpecifier ?
            getExternalModuleMember(node.parent.parent, node) :
            resolveEntityName(node.propertyName || node.name, 107455 | 793064 | 1920);
    }
    function getTargetOfExportAssignment(node) {
        return resolveEntityName(node.expression, 107455 | 793064 | 1920);
    }
    function getTargetOfAliasDeclaration(node) {
        switch (node.kind) {
            case 234:
                return getTargetOfImportEqualsDeclaration(node);
            case 236:
                return getTargetOfImportClause(node);
            case 237:
                return getTargetOfNamespaceImport(node);
            case 239:
                return getTargetOfImportSpecifier(node);
            case 243:
                return getTargetOfExportSpecifier(node);
            case 240:
                return getTargetOfExportAssignment(node);
            case 233:
                return getTargetOfNamespaceExportDeclaration(node);
        }
    }
    function resolveSymbol(symbol) {
        return symbol && symbol.flags & 8388608 && !(symbol.flags & (107455 | 793064 | 1920)) ? resolveAlias(symbol) : symbol;
    }
    function resolveAlias(symbol) {
        ts.Debug.assert((symbol.flags & 8388608) !== 0, "Should only get Alias here.");
        var links = getSymbolLinks(symbol);
        if (!links.target) {
            links.target = resolvingSymbol;
            var node = getDeclarationOfAliasSymbol(symbol);
            ts.Debug.assert(!!node);
            var target = getTargetOfAliasDeclaration(node);
            if (links.target === resolvingSymbol) {
                links.target = target || unknownSymbol;
            }
            else {
                error(node, ts.Diagnostics.Circular_definition_of_import_alias_0, symbolToString(symbol));
            }
        }
        else if (links.target === resolvingSymbol) {
            links.target = unknownSymbol;
        }
        return links.target;
    }
    function markExportAsReferenced(node) {
        var symbol = getSymbolOfNode(node);
        var target = resolveAlias(symbol);
        if (target) {
            var markAlias = target === unknownSymbol ||
                ((target.flags & 107455) && !isConstEnumOrConstEnumOnlyModule(target));
            if (markAlias) {
                markAliasSymbolAsReferenced(symbol);
            }
        }
    }
    function markAliasSymbolAsReferenced(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.referenced) {
            links.referenced = true;
            var node = getDeclarationOfAliasSymbol(symbol);
            ts.Debug.assert(!!node);
            if (node.kind === 240) {
                checkExpressionCached(node.expression);
            }
            else if (node.kind === 243) {
                checkExpressionCached(node.propertyName || node.name);
            }
            else if (ts.isInternalModuleImportEqualsDeclaration(node)) {
                checkExpressionCached(node.moduleReference);
            }
        }
    }
    function getSymbolOfPartOfRightHandSideOfImportEquals(entityName, dontResolveAlias) {
        if (entityName.kind === 70 && ts.isRightSideOfQualifiedNameOrPropertyAccess(entityName)) {
            entityName = entityName.parent;
        }
        if (entityName.kind === 70 || entityName.parent.kind === 141) {
            return resolveEntityName(entityName, 1920, false, dontResolveAlias);
        }
        else {
            ts.Debug.assert(entityName.parent.kind === 234);
            return resolveEntityName(entityName, 107455 | 793064 | 1920, false, dontResolveAlias);
        }
    }
    function getFullyQualifiedName(symbol) {
        return symbol.parent ? getFullyQualifiedName(symbol.parent) + "." + symbolToString(symbol) : symbolToString(symbol);
    }
    function resolveEntityName(name, meaning, ignoreErrors, dontResolveAlias, location) {
        if (ts.nodeIsMissing(name)) {
            return undefined;
        }
        var symbol;
        if (name.kind === 70) {
            var message = meaning === 1920 ? ts.Diagnostics.Cannot_find_namespace_0 : ts.Diagnostics.Cannot_find_name_0;
            symbol = resolveName(location || name, name.text, meaning, ignoreErrors ? undefined : message, name);
            if (!symbol) {
                return undefined;
            }
        }
        else if (name.kind === 141 || name.kind === 177) {
            var left = name.kind === 141 ? name.left : name.expression;
            var right = name.kind === 141 ? name.right : name.name;
            var namespace = resolveEntityName(left, 1920, ignoreErrors, false, location);
            if (!namespace || ts.nodeIsMissing(right)) {
                return undefined;
            }
            else if (namespace === unknownSymbol) {
                return namespace;
            }
            symbol = getSymbol(getExportsOfSymbol(namespace), right.text, meaning);
            if (!symbol) {
                if (!ignoreErrors) {
                    error(right, ts.Diagnostics.Namespace_0_has_no_exported_member_1, getFullyQualifiedName(namespace), ts.declarationNameToString(right));
                }
                return undefined;
            }
        }
        else {
            ts.Debug.fail("Unknown entity name kind.");
        }
        ts.Debug.assert((symbol.flags & 16777216) === 0, "Should never get an instantiated symbol here.");
        return (symbol.flags & meaning) || dontResolveAlias ? symbol : resolveAlias(symbol);
    }
    function resolveExternalModuleName(location, moduleReferenceExpression) {
        return resolveExternalModuleNameWorker(location, moduleReferenceExpression, ts.Diagnostics.Cannot_find_module_0);
    }
    function resolveExternalModuleNameWorker(location, moduleReferenceExpression, moduleNotFoundError, isForAugmentation) {
        if (isForAugmentation === void 0) { isForAugmentation = false; }
        if (moduleReferenceExpression.kind !== 9) {
            return;
        }
        var moduleReferenceLiteral = moduleReferenceExpression;
        return resolveExternalModule(location, moduleReferenceLiteral.text, moduleNotFoundError, moduleReferenceLiteral, isForAugmentation);
    }
    function resolveExternalModule(location, moduleReference, moduleNotFoundError, errorNode, isForAugmentation) {
        if (isForAugmentation === void 0) { isForAugmentation = false; }
        var moduleName = ts.escapeIdentifier(moduleReference);
        if (moduleName === undefined) {
            return;
        }
        var ambientModule = tryFindAmbientModule(moduleName, true);
        if (ambientModule) {
            return ambientModule;
        }
        var isRelative = ts.isExternalModuleNameRelative(moduleName);
        var resolvedModule = ts.getResolvedModule(ts.getSourceFileOfNode(location), moduleReference);
        var resolutionDiagnostic = resolvedModule && ts.getResolutionDiagnostic(compilerOptions, resolvedModule);
        var sourceFile = resolvedModule && !resolutionDiagnostic && host.getSourceFile(resolvedModule.resolvedFileName);
        if (sourceFile) {
            if (sourceFile.symbol) {
                return getMergedSymbol(sourceFile.symbol);
            }
            if (moduleNotFoundError) {
                error(errorNode, ts.Diagnostics.File_0_is_not_a_module, sourceFile.fileName);
            }
            return undefined;
        }
        if (patternAmbientModules) {
            var pattern = ts.findBestPatternMatch(patternAmbientModules, function (_) { return _.pattern; }, moduleName);
            if (pattern) {
                return getMergedSymbol(pattern.symbol);
            }
        }
        if (!isRelative && resolvedModule && !ts.extensionIsTypeScript(resolvedModule.extension)) {
            if (isForAugmentation) {
                var diag = ts.Diagnostics.Invalid_module_name_in_augmentation_Module_0_resolves_to_an_untyped_module_at_1_which_cannot_be_augmented;
                error(errorNode, diag, moduleReference, resolvedModule.resolvedFileName);
            }
            else if (compilerOptions.noImplicitAny && moduleNotFoundError) {
                error(errorNode, ts.Diagnostics.Could_not_find_a_declaration_file_for_module_0_1_implicitly_has_an_any_type, moduleReference, resolvedModule.resolvedFileName);
            }
            return undefined;
        }
        if (moduleNotFoundError) {
            if (resolutionDiagnostic) {
                error(errorNode, resolutionDiagnostic, moduleName, resolvedModule.resolvedFileName);
            }
            else {
                var tsExtension = ts.tryExtractTypeScriptExtension(moduleName);
                if (tsExtension) {
                    var diag = ts.Diagnostics.An_import_path_cannot_end_with_a_0_extension_Consider_importing_1_instead;
                    error(errorNode, diag, tsExtension, ts.removeExtension(moduleName, tsExtension));
                }
                else {
                    error(errorNode, moduleNotFoundError, moduleName);
                }
            }
        }
        return undefined;
    }
    function resolveExternalModuleSymbol(moduleSymbol) {
        return moduleSymbol && getMergedSymbol(resolveSymbol(moduleSymbol.exports["export="])) || moduleSymbol;
    }
    function resolveESModuleSymbol(moduleSymbol, moduleReferenceExpression) {
        var symbol = resolveExternalModuleSymbol(moduleSymbol);
        if (symbol && !(symbol.flags & (1536 | 3))) {
            error(moduleReferenceExpression, ts.Diagnostics.Module_0_resolves_to_a_non_module_entity_and_cannot_be_imported_using_this_construct, symbolToString(moduleSymbol));
            symbol = undefined;
        }
        return symbol;
    }
    function hasExportAssignmentSymbol(moduleSymbol) {
        return moduleSymbol.exports["export="] !== undefined;
    }
    function getExportsOfModuleAsArray(moduleSymbol) {
        return symbolsToArray(getExportsOfModule(moduleSymbol));
    }
    function tryGetMemberInModuleExports(memberName, moduleSymbol) {
        var symbolTable = getExportsOfModule(moduleSymbol);
        if (symbolTable) {
            return symbolTable[memberName];
        }
    }
    function getExportsOfSymbol(symbol) {
        return symbol.flags & 1536 ? getExportsOfModule(symbol) : symbol.exports || emptySymbols;
    }
    function getExportsOfModule(moduleSymbol) {
        var links = getSymbolLinks(moduleSymbol);
        return links.resolvedExports || (links.resolvedExports = getExportsForModule(moduleSymbol));
    }
    function extendExportSymbols(target, source, lookupTable, exportNode) {
        for (var id in source) {
            if (id !== "default" && !target[id]) {
                target[id] = source[id];
                if (lookupTable && exportNode) {
                    lookupTable[id] = {
                        specifierText: ts.getTextOfNode(exportNode.moduleSpecifier)
                    };
                }
            }
            else if (lookupTable && exportNode && id !== "default" && target[id] && resolveSymbol(target[id]) !== resolveSymbol(source[id])) {
                if (!lookupTable[id].exportsWithDuplicate) {
                    lookupTable[id].exportsWithDuplicate = [exportNode];
                }
                else {
                    lookupTable[id].exportsWithDuplicate.push(exportNode);
                }
            }
        }
    }
    function getExportsForModule(moduleSymbol) {
        var visitedSymbols = [];
        moduleSymbol = resolveExternalModuleSymbol(moduleSymbol);
        return visit(moduleSymbol) || moduleSymbol.exports;
        function visit(symbol) {
            if (!(symbol && symbol.flags & 1952 && !ts.contains(visitedSymbols, symbol))) {
                return;
            }
            visitedSymbols.push(symbol);
            var symbols = ts.cloneMap(symbol.exports);
            var exportStars = symbol.exports["__export"];
            if (exportStars) {
                var nestedSymbols = ts.createMap();
                var lookupTable = ts.createMap();
                for (var _i = 0, _a = exportStars.declarations; _i < _a.length; _i++) {
                    var node = _a[_i];
                    var resolvedModule = resolveExternalModuleName(node, node.moduleSpecifier);
                    var exportedSymbols = visit(resolvedModule);
                    extendExportSymbols(nestedSymbols, exportedSymbols, lookupTable, node);
                }
                for (var id in lookupTable) {
                    var exportsWithDuplicate = lookupTable[id].exportsWithDuplicate;
                    if (id === "export=" || !(exportsWithDuplicate && exportsWithDuplicate.length) || symbols[id]) {
                        continue;
                    }
                    for (var _b = 0, exportsWithDuplicate_1 = exportsWithDuplicate; _b < exportsWithDuplicate_1.length; _b++) {
                        var node = exportsWithDuplicate_1[_b];
                        diagnostics.add(ts.createDiagnosticForNode(node, ts.Diagnostics.Module_0_has_already_exported_a_member_named_1_Consider_explicitly_re_exporting_to_resolve_the_ambiguity, lookupTable[id].specifierText, id));
                    }
                }
                extendExportSymbols(symbols, nestedSymbols);
            }
            return symbols;
        }
    }
    function getMergedSymbol(symbol) {
        var merged;
        return symbol && symbol.mergeId && (merged = mergedSymbols[symbol.mergeId]) ? merged : symbol;
    }
    function getSymbolOfNode(node) {
        return getMergedSymbol(node.symbol);
    }
    function getParentOfSymbol(symbol) {
        return getMergedSymbol(symbol.parent);
    }
    function getExportSymbolOfValueSymbolIfExported(symbol) {
        return symbol && (symbol.flags & 1048576) !== 0
            ? getMergedSymbol(symbol.exportSymbol)
            : symbol;
    }
    function symbolIsValue(symbol) {
        if (symbol.flags & 16777216) {
            return symbolIsValue(getSymbolLinks(symbol).target);
        }
        if (symbol.flags & 107455) {
            return true;
        }
        if (symbol.flags & 8388608) {
            return (resolveAlias(symbol).flags & 107455) !== 0;
        }
        return false;
    }
    function findConstructorDeclaration(node) {
        var members = node.members;
        for (var _i = 0, members_1 = members; _i < members_1.length; _i++) {
            var member = members_1[_i];
            if (member.kind === 150 && ts.nodeIsPresent(member.body)) {
                return member;
            }
        }
    }
    function createType(flags) {
        var result = new Type(checker, flags);
        typeCount++;
        result.id = typeCount;
        return result;
    }
    function createIntrinsicType(kind, intrinsicName) {
        var type = createType(kind);
        type.intrinsicName = intrinsicName;
        return type;
    }
    function createBooleanType(trueFalseTypes) {
        var type = getUnionType(trueFalseTypes);
        type.flags |= 8;
        type.intrinsicName = "boolean";
        return type;
    }
    function createObjectType(objectFlags, symbol) {
        var type = createType(32768);
        type.objectFlags = objectFlags;
        type.symbol = symbol;
        return type;
    }
    function isReservedMemberName(name) {
        return name.charCodeAt(0) === 95 &&
            name.charCodeAt(1) === 95 &&
            name.charCodeAt(2) !== 95 &&
            name.charCodeAt(2) !== 64;
    }
    function getNamedMembers(members) {
        var result;
        for (var id in members) {
            if (!isReservedMemberName(id)) {
                if (!result)
                    result = [];
                var symbol = members[id];
                if (symbolIsValue(symbol)) {
                    result.push(symbol);
                }
            }
        }
        return result || emptyArray;
    }
    function setStructuredTypeMembers(type, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo) {
        type.members = members;
        type.properties = getNamedMembers(members);
        type.callSignatures = callSignatures;
        type.constructSignatures = constructSignatures;
        if (stringIndexInfo)
            type.stringIndexInfo = stringIndexInfo;
        if (numberIndexInfo)
            type.numberIndexInfo = numberIndexInfo;
        return type;
    }
    function createAnonymousType(symbol, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo) {
        return setStructuredTypeMembers(createObjectType(16, symbol), members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
    }
    function forEachSymbolTableInScope(enclosingDeclaration, callback) {
        var result;
        for (var location_1 = enclosingDeclaration; location_1; location_1 = location_1.parent) {
            if (location_1.locals && !isGlobalSourceFile(location_1)) {
                if (result = callback(location_1.locals)) {
                    return result;
                }
            }
            switch (location_1.kind) {
                case 261:
                    if (!ts.isExternalOrCommonJsModule(location_1)) {
                        break;
                    }
                case 230:
                    if (result = callback(getSymbolOfNode(location_1).exports)) {
                        return result;
                    }
                    break;
            }
        }
        return callback(globals);
    }
    function getQualifiedLeftMeaning(rightMeaning) {
        return rightMeaning === 107455 ? 107455 : 1920;
    }
    function getAccessibleSymbolChain(symbol, enclosingDeclaration, meaning, useOnlyExternalAliasing) {
        function getAccessibleSymbolChainFromSymbolTable(symbols) {
            return getAccessibleSymbolChainFromSymbolTableWorker(symbols, []);
        }
        function getAccessibleSymbolChainFromSymbolTableWorker(symbols, visitedSymbolTables) {
            if (ts.contains(visitedSymbolTables, symbols)) {
                return undefined;
            }
            visitedSymbolTables.push(symbols);
            var result = trySymbolTable(symbols);
            visitedSymbolTables.pop();
            return result;
            function canQualifySymbol(symbolFromSymbolTable, meaning) {
                if (!needsQualification(symbolFromSymbolTable, enclosingDeclaration, meaning)) {
                    return true;
                }
                var accessibleParent = getAccessibleSymbolChain(symbolFromSymbolTable.parent, enclosingDeclaration, getQualifiedLeftMeaning(meaning), useOnlyExternalAliasing);
                return !!accessibleParent;
            }
            function isAccessible(symbolFromSymbolTable, resolvedAliasSymbol) {
                if (symbol === (resolvedAliasSymbol || symbolFromSymbolTable)) {
                    return !ts.forEach(symbolFromSymbolTable.declarations, hasExternalModuleSymbol) &&
                        canQualifySymbol(symbolFromSymbolTable, meaning);
                }
            }
            function trySymbolTable(symbols) {
                if (isAccessible(symbols[symbol.name])) {
                    return [symbol];
                }
                return ts.forEachProperty(symbols, function (symbolFromSymbolTable) {
                    if (symbolFromSymbolTable.flags & 8388608
                        && symbolFromSymbolTable.name !== "export="
                        && !ts.getDeclarationOfKind(symbolFromSymbolTable, 243)) {
                        if (!useOnlyExternalAliasing ||
                            ts.forEach(symbolFromSymbolTable.declarations, ts.isExternalModuleImportEqualsDeclaration)) {
                            var resolvedImportedSymbol = resolveAlias(symbolFromSymbolTable);
                            if (isAccessible(symbolFromSymbolTable, resolveAlias(symbolFromSymbolTable))) {
                                return [symbolFromSymbolTable];
                            }
                            var accessibleSymbolsFromExports = resolvedImportedSymbol.exports ? getAccessibleSymbolChainFromSymbolTableWorker(resolvedImportedSymbol.exports, visitedSymbolTables) : undefined;
                            if (accessibleSymbolsFromExports && canQualifySymbol(symbolFromSymbolTable, getQualifiedLeftMeaning(meaning))) {
                                return [symbolFromSymbolTable].concat(accessibleSymbolsFromExports);
                            }
                        }
                    }
                });
            }
        }
        if (symbol) {
            if (!(isPropertyOrMethodDeclarationSymbol(symbol))) {
                return forEachSymbolTableInScope(enclosingDeclaration, getAccessibleSymbolChainFromSymbolTable);
            }
        }
    }
    function needsQualification(symbol, enclosingDeclaration, meaning) {
        var qualify = false;
        forEachSymbolTableInScope(enclosingDeclaration, function (symbolTable) {
            var symbolFromSymbolTable = symbolTable[symbol.name];
            if (!symbolFromSymbolTable) {
                return false;
            }
            if (symbolFromSymbolTable === symbol) {
                return true;
            }
            symbolFromSymbolTable = (symbolFromSymbolTable.flags & 8388608 && !ts.getDeclarationOfKind(symbolFromSymbolTable, 243)) ? resolveAlias(symbolFromSymbolTable) : symbolFromSymbolTable;
            if (symbolFromSymbolTable.flags & meaning) {
                qualify = true;
                return true;
            }
            return false;
        });
        return qualify;
    }
    function isPropertyOrMethodDeclarationSymbol(symbol) {
        if (symbol.declarations && symbol.declarations.length) {
            for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
                var declaration = _a[_i];
                switch (declaration.kind) {
                    case 147:
                    case 149:
                    case 151:
                    case 152:
                        continue;
                    default:
                        return false;
                }
            }
            return true;
        }
        return false;
    }
    function isSymbolAccessible(symbol, enclosingDeclaration, meaning, shouldComputeAliasesToMakeVisible) {
        if (symbol && enclosingDeclaration && !(symbol.flags & 262144)) {
            var initialSymbol = symbol;
            var meaningToLook = meaning;
            while (symbol) {
                var accessibleSymbolChain = getAccessibleSymbolChain(symbol, enclosingDeclaration, meaningToLook, false);
                if (accessibleSymbolChain) {
                    var hasAccessibleDeclarations = hasVisibleDeclarations(accessibleSymbolChain[0], shouldComputeAliasesToMakeVisible);
                    if (!hasAccessibleDeclarations) {
                        return {
                            accessibility: 1,
                            errorSymbolName: symbolToString(initialSymbol, enclosingDeclaration, meaning),
                            errorModuleName: symbol !== initialSymbol ? symbolToString(symbol, enclosingDeclaration, 1920) : undefined,
                        };
                    }
                    return hasAccessibleDeclarations;
                }
                meaningToLook = getQualifiedLeftMeaning(meaning);
                symbol = getParentOfSymbol(symbol);
            }
            var symbolExternalModule = ts.forEach(initialSymbol.declarations, getExternalModuleContainer);
            if (symbolExternalModule) {
                var enclosingExternalModule = getExternalModuleContainer(enclosingDeclaration);
                if (symbolExternalModule !== enclosingExternalModule) {
                    return {
                        accessibility: 2,
                        errorSymbolName: symbolToString(initialSymbol, enclosingDeclaration, meaning),
                        errorModuleName: symbolToString(symbolExternalModule)
                    };
                }
            }
            return {
                accessibility: 1,
                errorSymbolName: symbolToString(initialSymbol, enclosingDeclaration, meaning),
            };
        }
        return { accessibility: 0 };
        function getExternalModuleContainer(declaration) {
            for (; declaration; declaration = declaration.parent) {
                if (hasExternalModuleSymbol(declaration)) {
                    return getSymbolOfNode(declaration);
                }
            }
        }
    }
    function hasExternalModuleSymbol(declaration) {
        return ts.isAmbientModule(declaration) || (declaration.kind === 261 && ts.isExternalOrCommonJsModule(declaration));
    }
    function hasVisibleDeclarations(symbol, shouldComputeAliasToMakeVisible) {
        var aliasesToMakeVisible;
        if (ts.forEach(symbol.declarations, function (declaration) { return !getIsDeclarationVisible(declaration); })) {
            return undefined;
        }
        return { accessibility: 0, aliasesToMakeVisible: aliasesToMakeVisible };
        function getIsDeclarationVisible(declaration) {
            if (!isDeclarationVisible(declaration)) {
                var anyImportSyntax = getAnyImportSyntax(declaration);
                if (anyImportSyntax &&
                    !(ts.getModifierFlags(anyImportSyntax) & 1) &&
                    isDeclarationVisible(anyImportSyntax.parent)) {
                    if (shouldComputeAliasToMakeVisible) {
                        getNodeLinks(declaration).isVisible = true;
                        if (aliasesToMakeVisible) {
                            if (!ts.contains(aliasesToMakeVisible, anyImportSyntax)) {
                                aliasesToMakeVisible.push(anyImportSyntax);
                            }
                        }
                        else {
                            aliasesToMakeVisible = [anyImportSyntax];
                        }
                    }
                    return true;
                }
                return false;
            }
            return true;
        }
    }
    function isEntityNameVisible(entityName, enclosingDeclaration) {
        var meaning;
        if (entityName.parent.kind === 160 || ts.isExpressionWithTypeArgumentsInClassExtendsClause(entityName.parent)) {
            meaning = 107455 | 1048576;
        }
        else if (entityName.kind === 141 || entityName.kind === 177 ||
            entityName.parent.kind === 234) {
            meaning = 1920;
        }
        else {
            meaning = 793064;
        }
        var firstIdentifier = getFirstIdentifier(entityName);
        var symbol = resolveName(enclosingDeclaration, firstIdentifier.text, meaning, undefined, undefined);
        return (symbol && hasVisibleDeclarations(symbol, true)) || {
            accessibility: 1,
            errorSymbolName: ts.getTextOfNode(firstIdentifier),
            errorNode: firstIdentifier
        };
    }
    function writeKeyword(writer, kind) {
        writer.writeKeyword(ts.tokenToString(kind));
    }
    function writePunctuation(writer, kind) {
        writer.writePunctuation(ts.tokenToString(kind));
    }
    function writeSpace(writer) {
        writer.writeSpace(" ");
    }
    function symbolToString(symbol, enclosingDeclaration, meaning) {
        var writer = ts.getSingleLineStringWriter();
        getSymbolDisplayBuilder().buildSymbolDisplay(symbol, writer, enclosingDeclaration, meaning);
        var result = writer.string();
        ts.releaseStringWriter(writer);
        return result;
    }
    function signatureToString(signature, enclosingDeclaration, flags, kind) {
        var writer = ts.getSingleLineStringWriter();
        getSymbolDisplayBuilder().buildSignatureDisplay(signature, writer, enclosingDeclaration, flags, kind);
        var result = writer.string();
        ts.releaseStringWriter(writer);
        return result;
    }
    function typeToString(type, enclosingDeclaration, flags) {
        var writer = ts.getSingleLineStringWriter();
        getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
        var result = writer.string();
        ts.releaseStringWriter(writer);
        var maxLength = compilerOptions.noErrorTruncation || flags & 4 ? undefined : 100;
        if (maxLength && result.length >= maxLength) {
            result = result.substr(0, maxLength - "...".length) + "...";
        }
        return result;
    }
    function typePredicateToString(typePredicate, enclosingDeclaration, flags) {
        var writer = ts.getSingleLineStringWriter();
        getSymbolDisplayBuilder().buildTypePredicateDisplay(typePredicate, writer, enclosingDeclaration, flags);
        var result = writer.string();
        ts.releaseStringWriter(writer);
        return result;
    }
    function formatUnionTypes(types) {
        var result = [];
        var flags = 0;
        for (var i = 0; i < types.length; i++) {
            var t = types[i];
            flags |= t.flags;
            if (!(t.flags & 6144)) {
                if (t.flags & (128 | 256)) {
                    var baseType = t.flags & 128 ? booleanType : t.baseType;
                    var count = baseType.types.length;
                    if (i + count <= types.length && types[i + count - 1] === baseType.types[count - 1]) {
                        result.push(baseType);
                        i += count - 1;
                        continue;
                    }
                }
                result.push(t);
            }
        }
        if (flags & 4096)
            result.push(nullType);
        if (flags & 2048)
            result.push(undefinedType);
        return result || types;
    }
    function visibilityToString(flags) {
        if (flags === 8) {
            return "private";
        }
        if (flags === 16) {
            return "protected";
        }
        return "public";
    }
    function getTypeAliasForTypeLiteral(type) {
        if (type.symbol && type.symbol.flags & 2048) {
            var node = type.symbol.declarations[0].parent;
            while (node.kind === 166) {
                node = node.parent;
            }
            if (node.kind === 228) {
                return getSymbolOfNode(node);
            }
        }
        return undefined;
    }
    function isTopLevelInExternalModuleAugmentation(node) {
        return node && node.parent &&
            node.parent.kind === 231 &&
            ts.isExternalModuleAugmentation(node.parent.parent);
    }
    function literalTypeToString(type) {
        return type.flags & 32 ? "\"" + ts.escapeString(type.text) + "\"" : type.text;
    }
    function getSymbolDisplayBuilder() {
        function getNameOfSymbol(symbol) {
            if (symbol.declarations && symbol.declarations.length) {
                var declaration = symbol.declarations[0];
                if (declaration.name) {
                    return ts.declarationNameToString(declaration.name);
                }
                switch (declaration.kind) {
                    case 197:
                        return "(Anonymous class)";
                    case 184:
                    case 185:
                        return "(Anonymous function)";
                }
            }
            return symbol.name;
        }
        function appendSymbolNameOnly(symbol, writer) {
            writer.writeSymbol(getNameOfSymbol(symbol), symbol);
        }
        function appendPropertyOrElementAccessForSymbol(symbol, writer) {
            var symbolName = getNameOfSymbol(symbol);
            var firstChar = symbolName.charCodeAt(0);
            var needsElementAccess = !ts.isIdentifierStart(firstChar, languageVersion);
            if (needsElementAccess) {
                writePunctuation(writer, 20);
                if (ts.isSingleOrDoubleQuote(firstChar)) {
                    writer.writeStringLiteral(symbolName);
                }
                else {
                    writer.writeSymbol(symbolName, symbol);
                }
                writePunctuation(writer, 21);
            }
            else {
                writePunctuation(writer, 22);
                writer.writeSymbol(symbolName, symbol);
            }
        }
        function buildSymbolDisplay(symbol, writer, enclosingDeclaration, meaning, flags, typeFlags) {
            var parentSymbol;
            function appendParentTypeArgumentsAndSymbolName(symbol) {
                if (parentSymbol) {
                    if (flags & 1) {
                        if (symbol.flags & 16777216) {
                            buildDisplayForTypeArgumentsAndDelimiters(getTypeParametersOfClassOrInterface(parentSymbol), symbol.mapper, writer, enclosingDeclaration);
                        }
                        else {
                            buildTypeParameterDisplayFromSymbol(parentSymbol, writer, enclosingDeclaration);
                        }
                    }
                    appendPropertyOrElementAccessForSymbol(symbol, writer);
                }
                else {
                    appendSymbolNameOnly(symbol, writer);
                }
                parentSymbol = symbol;
            }
            writer.trackSymbol(symbol, enclosingDeclaration, meaning);
            function walkSymbol(symbol, meaning, endOfChain) {
                var accessibleSymbolChain = getAccessibleSymbolChain(symbol, enclosingDeclaration, meaning, !!(flags & 2));
                if (!accessibleSymbolChain ||
                    needsQualification(accessibleSymbolChain[0], enclosingDeclaration, accessibleSymbolChain.length === 1 ? meaning : getQualifiedLeftMeaning(meaning))) {
                    var parent_6 = getParentOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol);
                    if (parent_6) {
                        walkSymbol(parent_6, getQualifiedLeftMeaning(meaning), false);
                    }
                }
                if (accessibleSymbolChain) {
                    for (var _i = 0, accessibleSymbolChain_1 = accessibleSymbolChain; _i < accessibleSymbolChain_1.length; _i++) {
                        var accessibleSymbol = accessibleSymbolChain_1[_i];
                        appendParentTypeArgumentsAndSymbolName(accessibleSymbol);
                    }
                }
                else if (endOfChain ||
                    !(!parentSymbol && ts.forEach(symbol.declarations, hasExternalModuleSymbol)) &&
                        !(symbol.flags & (2048 | 4096))) {
                    appendParentTypeArgumentsAndSymbolName(symbol);
                }
            }
            var isTypeParameter = symbol.flags & 262144;
            var typeFormatFlag = 128 & typeFlags;
            if (!isTypeParameter && (enclosingDeclaration || typeFormatFlag)) {
                walkSymbol(symbol, meaning, true);
            }
            else {
                appendParentTypeArgumentsAndSymbolName(symbol);
            }
        }
        function buildTypeDisplay(type, writer, enclosingDeclaration, globalFlags, symbolStack) {
            var globalFlagsToPass = globalFlags & 16;
            var inObjectTypeLiteral = false;
            return writeType(type, globalFlags);
            function writeType(type, flags) {
                var nextFlags = flags & ~512;
                if (type.flags & 16015) {
                    writer.writeKeyword(!(globalFlags & 16) && isTypeAny(type)
                        ? "any"
                        : type.intrinsicName);
                }
                else if (type.flags & 16384 && type.isThisType) {
                    if (inObjectTypeLiteral) {
                        writer.reportInaccessibleThisError();
                    }
                    writer.writeKeyword("this");
                }
                else if (getObjectFlags(type) & 4) {
                    writeTypeReference(type, nextFlags);
                }
                else if (type.flags & 256) {
                    buildSymbolDisplay(getParentOfSymbol(type.symbol), writer, enclosingDeclaration, 793064, 0, nextFlags);
                    writePunctuation(writer, 22);
                    appendSymbolNameOnly(type.symbol, writer);
                }
                else if (getObjectFlags(type) & 3 || type.flags & (16 | 16384)) {
                    buildSymbolDisplay(type.symbol, writer, enclosingDeclaration, 793064, 0, nextFlags);
                }
                else if (!(flags & 512) && type.aliasSymbol &&
                    isSymbolAccessible(type.aliasSymbol, enclosingDeclaration, 793064, false).accessibility === 0) {
                    var typeArguments = type.aliasTypeArguments;
                    writeSymbolTypeReference(type.aliasSymbol, typeArguments, 0, typeArguments ? typeArguments.length : 0, nextFlags);
                }
                else if (type.flags & 196608) {
                    writeUnionOrIntersectionType(type, nextFlags);
                }
                else if (getObjectFlags(type) & (16 | 32)) {
                    writeAnonymousType(type, nextFlags);
                }
                else if (type.flags & 96) {
                    writer.writeStringLiteral(literalTypeToString(type));
                }
                else if (type.flags & 262144) {
                    writer.writeKeyword("keyof");
                    writeSpace(writer);
                    writeType(type.type, 64);
                }
                else if (type.flags & 524288) {
                    writeType(type.objectType, 64);
                    writePunctuation(writer, 20);
                    writeType(type.indexType, 0);
                    writePunctuation(writer, 21);
                }
                else {
                    writePunctuation(writer, 16);
                    writeSpace(writer);
                    writePunctuation(writer, 23);
                    writeSpace(writer);
                    writePunctuation(writer, 17);
                }
            }
            function writeTypeList(types, delimiter) {
                for (var i = 0; i < types.length; i++) {
                    if (i > 0) {
                        if (delimiter !== 25) {
                            writeSpace(writer);
                        }
                        writePunctuation(writer, delimiter);
                        writeSpace(writer);
                    }
                    writeType(types[i], delimiter === 25 ? 0 : 64);
                }
            }
            function writeSymbolTypeReference(symbol, typeArguments, pos, end, flags) {
                if (symbol.flags & 32 || !isReservedMemberName(symbol.name)) {
                    buildSymbolDisplay(symbol, writer, enclosingDeclaration, 793064, 0, flags);
                }
                if (pos < end) {
                    writePunctuation(writer, 26);
                    writeType(typeArguments[pos], 256);
                    pos++;
                    while (pos < end) {
                        writePunctuation(writer, 25);
                        writeSpace(writer);
                        writeType(typeArguments[pos], 0);
                        pos++;
                    }
                    writePunctuation(writer, 28);
                }
            }
            function writeTypeReference(type, flags) {
                var typeArguments = type.typeArguments || emptyArray;
                if (type.target === globalArrayType && !(flags & 1)) {
                    writeType(typeArguments[0], 64);
                    writePunctuation(writer, 20);
                    writePunctuation(writer, 21);
                }
                else if (type.target.objectFlags & 8) {
                    writePunctuation(writer, 20);
                    writeTypeList(type.typeArguments.slice(0, getTypeReferenceArity(type)), 25);
                    writePunctuation(writer, 21);
                }
                else {
                    var outerTypeParameters = type.target.outerTypeParameters;
                    var i = 0;
                    if (outerTypeParameters) {
                        var length_1 = outerTypeParameters.length;
                        while (i < length_1) {
                            var start = i;
                            var parent_7 = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
                            do {
                                i++;
                            } while (i < length_1 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent_7);
                            if (!ts.rangeEquals(outerTypeParameters, typeArguments, start, i)) {
                                writeSymbolTypeReference(parent_7, typeArguments, start, i, flags);
                                writePunctuation(writer, 22);
                            }
                        }
                    }
                    var typeParameterCount = (type.target.typeParameters || emptyArray).length;
                    writeSymbolTypeReference(type.symbol, typeArguments, i, typeParameterCount, flags);
                }
            }
            function writeUnionOrIntersectionType(type, flags) {
                if (flags & 64) {
                    writePunctuation(writer, 18);
                }
                if (type.flags & 65536) {
                    writeTypeList(formatUnionTypes(type.types), 48);
                }
                else {
                    writeTypeList(type.types, 47);
                }
                if (flags & 64) {
                    writePunctuation(writer, 19);
                }
            }
            function writeAnonymousType(type, flags) {
                var symbol = type.symbol;
                if (symbol) {
                    if (symbol.flags & (32 | 384 | 512)) {
                        writeTypeOfSymbol(type, flags);
                    }
                    else if (shouldWriteTypeOfFunctionSymbol()) {
                        writeTypeOfSymbol(type, flags);
                    }
                    else if (ts.contains(symbolStack, symbol)) {
                        var typeAlias = getTypeAliasForTypeLiteral(type);
                        if (typeAlias) {
                            buildSymbolDisplay(typeAlias, writer, enclosingDeclaration, 793064, 0, flags);
                        }
                        else {
                            writeKeyword(writer, 118);
                        }
                    }
                    else {
                        if (!symbolStack) {
                            symbolStack = [];
                        }
                        symbolStack.push(symbol);
                        writeLiteralType(type, flags);
                        symbolStack.pop();
                    }
                }
                else {
                    writeLiteralType(type, flags);
                }
                function shouldWriteTypeOfFunctionSymbol() {
                    var isStaticMethodSymbol = !!(symbol.flags & 8192 &&
                        ts.forEach(symbol.declarations, function (declaration) { return ts.getModifierFlags(declaration) & 32; }));
                    var isNonLocalFunctionSymbol = !!(symbol.flags & 16) &&
                        (symbol.parent ||
                            ts.forEach(symbol.declarations, function (declaration) {
                                return declaration.parent.kind === 261 || declaration.parent.kind === 231;
                            }));
                    if (isStaticMethodSymbol || isNonLocalFunctionSymbol) {
                        return !!(flags & 2) ||
                            (ts.contains(symbolStack, symbol));
                    }
                }
            }
            function writeTypeOfSymbol(type, typeFormatFlags) {
                writeKeyword(writer, 102);
                writeSpace(writer);
                buildSymbolDisplay(type.symbol, writer, enclosingDeclaration, 107455, 0, typeFormatFlags);
            }
            function writeIndexSignature(info, keyword) {
                if (info) {
                    if (info.isReadonly) {
                        writeKeyword(writer, 130);
                        writeSpace(writer);
                    }
                    writePunctuation(writer, 20);
                    writer.writeParameter(info.declaration ? ts.declarationNameToString(info.declaration.parameters[0].name) : "x");
                    writePunctuation(writer, 55);
                    writeSpace(writer);
                    writeKeyword(writer, keyword);
                    writePunctuation(writer, 21);
                    writePunctuation(writer, 55);
                    writeSpace(writer);
                    writeType(info.type, 0);
                    writePunctuation(writer, 24);
                    writer.writeLine();
                }
            }
            function writePropertyWithModifiers(prop) {
                if (isReadonlySymbol(prop)) {
                    writeKeyword(writer, 130);
                    writeSpace(writer);
                }
                buildSymbolDisplay(prop, writer);
                if (prop.flags & 536870912) {
                    writePunctuation(writer, 54);
                }
            }
            function shouldAddParenthesisAroundFunctionType(callSignature, flags) {
                if (flags & 64) {
                    return true;
                }
                else if (flags & 256) {
                    var typeParameters = callSignature.target && (flags & 32) ?
                        callSignature.target.typeParameters : callSignature.typeParameters;
                    return typeParameters && typeParameters.length !== 0;
                }
                return false;
            }
            function writeLiteralType(type, flags) {
                if (type.objectFlags & 32) {
                    if (getConstraintTypeFromMappedType(type).flags & (16384 | 262144)) {
                        writeMappedType(type);
                        return;
                    }
                }
                var resolved = resolveStructuredTypeMembers(type);
                if (!resolved.properties.length && !resolved.stringIndexInfo && !resolved.numberIndexInfo) {
                    if (!resolved.callSignatures.length && !resolved.constructSignatures.length) {
                        writePunctuation(writer, 16);
                        writePunctuation(writer, 17);
                        return;
                    }
                    if (resolved.callSignatures.length === 1 && !resolved.constructSignatures.length) {
                        var parenthesizeSignature = shouldAddParenthesisAroundFunctionType(resolved.callSignatures[0], flags);
                        if (parenthesizeSignature) {
                            writePunctuation(writer, 18);
                        }
                        buildSignatureDisplay(resolved.callSignatures[0], writer, enclosingDeclaration, globalFlagsToPass | 8, undefined, symbolStack);
                        if (parenthesizeSignature) {
                            writePunctuation(writer, 19);
                        }
                        return;
                    }
                    if (resolved.constructSignatures.length === 1 && !resolved.callSignatures.length) {
                        if (flags & 64) {
                            writePunctuation(writer, 18);
                        }
                        writeKeyword(writer, 93);
                        writeSpace(writer);
                        buildSignatureDisplay(resolved.constructSignatures[0], writer, enclosingDeclaration, globalFlagsToPass | 8, undefined, symbolStack);
                        if (flags & 64) {
                            writePunctuation(writer, 19);
                        }
                        return;
                    }
                }
                var saveInObjectTypeLiteral = inObjectTypeLiteral;
                inObjectTypeLiteral = true;
                writePunctuation(writer, 16);
                writer.writeLine();
                writer.increaseIndent();
                writeObjectLiteralType(resolved);
                writer.decreaseIndent();
                writePunctuation(writer, 17);
                inObjectTypeLiteral = saveInObjectTypeLiteral;
            }
            function writeObjectLiteralType(resolved) {
                for (var _i = 0, _a = resolved.callSignatures; _i < _a.length; _i++) {
                    var signature = _a[_i];
                    buildSignatureDisplay(signature, writer, enclosingDeclaration, globalFlagsToPass, undefined, symbolStack);
                    writePunctuation(writer, 24);
                    writer.writeLine();
                }
                for (var _b = 0, _c = resolved.constructSignatures; _b < _c.length; _b++) {
                    var signature = _c[_b];
                    buildSignatureDisplay(signature, writer, enclosingDeclaration, globalFlagsToPass, 1, symbolStack);
                    writePunctuation(writer, 24);
                    writer.writeLine();
                }
                writeIndexSignature(resolved.stringIndexInfo, 134);
                writeIndexSignature(resolved.numberIndexInfo, 132);
                for (var _d = 0, _e = resolved.properties; _d < _e.length; _d++) {
                    var p = _e[_d];
                    var t = getTypeOfSymbol(p);
                    if (p.flags & (16 | 8192) && !getPropertiesOfObjectType(t).length) {
                        var signatures = getSignaturesOfType(t, 0);
                        for (var _f = 0, signatures_1 = signatures; _f < signatures_1.length; _f++) {
                            var signature = signatures_1[_f];
                            writePropertyWithModifiers(p);
                            buildSignatureDisplay(signature, writer, enclosingDeclaration, globalFlagsToPass, undefined, symbolStack);
                            writePunctuation(writer, 24);
                            writer.writeLine();
                        }
                    }
                    else {
                        writePropertyWithModifiers(p);
                        writePunctuation(writer, 55);
                        writeSpace(writer);
                        writeType(t, 0);
                        writePunctuation(writer, 24);
                        writer.writeLine();
                    }
                }
            }
            function writeMappedType(type) {
                writePunctuation(writer, 16);
                writer.writeLine();
                writer.increaseIndent();
                if (type.declaration.readonlyToken) {
                    writeKeyword(writer, 130);
                    writeSpace(writer);
                }
                writePunctuation(writer, 20);
                appendSymbolNameOnly(getTypeParameterFromMappedType(type).symbol, writer);
                writeSpace(writer);
                writeKeyword(writer, 91);
                writeSpace(writer);
                writeType(getConstraintTypeFromMappedType(type), 0);
                writePunctuation(writer, 21);
                if (type.declaration.questionToken) {
                    writePunctuation(writer, 54);
                }
                writePunctuation(writer, 55);
                writeSpace(writer);
                writeType(getTemplateTypeFromMappedType(type), 0);
                writePunctuation(writer, 24);
                writer.writeLine();
                writer.decreaseIndent();
                writePunctuation(writer, 17);
            }
        }
        function buildTypeParameterDisplayFromSymbol(symbol, writer, enclosingDeclaration, flags) {
            var targetSymbol = getTargetSymbol(symbol);
            if (targetSymbol.flags & 32 || targetSymbol.flags & 64 || targetSymbol.flags & 524288) {
                buildDisplayForTypeParametersAndDelimiters(getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol), writer, enclosingDeclaration, flags);
            }
        }
        function buildTypeParameterDisplay(tp, writer, enclosingDeclaration, flags, symbolStack) {
            appendSymbolNameOnly(tp.symbol, writer);
            var constraint = getConstraintOfTypeParameter(tp);
            if (constraint) {
                writeSpace(writer);
                writeKeyword(writer, 84);
                writeSpace(writer);
                buildTypeDisplay(constraint, writer, enclosingDeclaration, flags, symbolStack);
            }
        }
        function buildParameterDisplay(p, writer, enclosingDeclaration, flags, symbolStack) {
            var parameterNode = p.valueDeclaration;
            if (ts.isRestParameter(parameterNode)) {
                writePunctuation(writer, 23);
            }
            if (ts.isBindingPattern(parameterNode.name)) {
                buildBindingPatternDisplay(parameterNode.name, writer, enclosingDeclaration, flags, symbolStack);
            }
            else {
                appendSymbolNameOnly(p, writer);
            }
            if (isOptionalParameter(parameterNode)) {
                writePunctuation(writer, 54);
            }
            writePunctuation(writer, 55);
            writeSpace(writer);
            buildTypeDisplay(getTypeOfSymbol(p), writer, enclosingDeclaration, flags, symbolStack);
        }
        function buildBindingPatternDisplay(bindingPattern, writer, enclosingDeclaration, flags, symbolStack) {
            if (bindingPattern.kind === 172) {
                writePunctuation(writer, 16);
                buildDisplayForCommaSeparatedList(bindingPattern.elements, writer, function (e) { return buildBindingElementDisplay(e, writer, enclosingDeclaration, flags, symbolStack); });
                writePunctuation(writer, 17);
            }
            else if (bindingPattern.kind === 173) {
                writePunctuation(writer, 20);
                var elements = bindingPattern.elements;
                buildDisplayForCommaSeparatedList(elements, writer, function (e) { return buildBindingElementDisplay(e, writer, enclosingDeclaration, flags, symbolStack); });
                if (elements && elements.hasTrailingComma) {
                    writePunctuation(writer, 25);
                }
                writePunctuation(writer, 21);
            }
        }
        function buildBindingElementDisplay(bindingElement, writer, enclosingDeclaration, flags, symbolStack) {
            if (ts.isOmittedExpression(bindingElement)) {
                return;
            }
            ts.Debug.assert(bindingElement.kind === 174);
            if (bindingElement.propertyName) {
                writer.writeProperty(ts.getTextOfNode(bindingElement.propertyName));
                writePunctuation(writer, 55);
                writeSpace(writer);
            }
            if (ts.isBindingPattern(bindingElement.name)) {
                buildBindingPatternDisplay(bindingElement.name, writer, enclosingDeclaration, flags, symbolStack);
            }
            else {
                if (bindingElement.dotDotDotToken) {
                    writePunctuation(writer, 23);
                }
                appendSymbolNameOnly(bindingElement.symbol, writer);
            }
        }
        function buildDisplayForTypeParametersAndDelimiters(typeParameters, writer, enclosingDeclaration, flags, symbolStack) {
            if (typeParameters && typeParameters.length) {
                writePunctuation(writer, 26);
                buildDisplayForCommaSeparatedList(typeParameters, writer, function (p) { return buildTypeParameterDisplay(p, writer, enclosingDeclaration, flags, symbolStack); });
                writePunctuation(writer, 28);
            }
        }
        function buildDisplayForCommaSeparatedList(list, writer, action) {
            for (var i = 0; i < list.length; i++) {
                if (i > 0) {
                    writePunctuation(writer, 25);
                    writeSpace(writer);
                }
                action(list[i]);
            }
        }
        function buildDisplayForTypeArgumentsAndDelimiters(typeParameters, mapper, writer, enclosingDeclaration) {
            if (typeParameters && typeParameters.length) {
                writePunctuation(writer, 26);
                var flags = 256;
                for (var i = 0; i < typeParameters.length; i++) {
                    if (i > 0) {
                        writePunctuation(writer, 25);
                        writeSpace(writer);
                        flags = 0;
                    }
                    buildTypeDisplay(mapper(typeParameters[i]), writer, enclosingDeclaration, flags);
                }
                writePunctuation(writer, 28);
            }
        }
        function buildDisplayForParametersAndDelimiters(thisParameter, parameters, writer, enclosingDeclaration, flags, symbolStack) {
            writePunctuation(writer, 18);
            if (thisParameter) {
                buildParameterDisplay(thisParameter, writer, enclosingDeclaration, flags, symbolStack);
            }
            for (var i = 0; i < parameters.length; i++) {
                if (i > 0 || thisParameter) {
                    writePunctuation(writer, 25);
                    writeSpace(writer);
                }
                buildParameterDisplay(parameters[i], writer, enclosingDeclaration, flags, symbolStack);
            }
            writePunctuation(writer, 19);
        }
        function buildTypePredicateDisplay(predicate, writer, enclosingDeclaration, flags, symbolStack) {
            if (ts.isIdentifierTypePredicate(predicate)) {
                writer.writeParameter(predicate.parameterName);
            }
            else {
                writeKeyword(writer, 98);
            }
            writeSpace(writer);
            writeKeyword(writer, 125);
            writeSpace(writer);
            buildTypeDisplay(predicate.type, writer, enclosingDeclaration, flags, symbolStack);
        }
        function buildReturnTypeDisplay(signature, writer, enclosingDeclaration, flags, symbolStack) {
            if (flags & 8) {
                writeSpace(writer);
                writePunctuation(writer, 35);
            }
            else {
                writePunctuation(writer, 55);
            }
            writeSpace(writer);
            if (signature.typePredicate) {
                buildTypePredicateDisplay(signature.typePredicate, writer, enclosingDeclaration, flags, symbolStack);
            }
            else {
                var returnType = getReturnTypeOfSignature(signature);
                buildTypeDisplay(returnType, writer, enclosingDeclaration, flags, symbolStack);
            }
        }
        function buildSignatureDisplay(signature, writer, enclosingDeclaration, flags, kind, symbolStack) {
            if (kind === 1) {
                writeKeyword(writer, 93);
                writeSpace(writer);
            }
            if (signature.target && (flags & 32)) {
                buildDisplayForTypeArgumentsAndDelimiters(signature.target.typeParameters, signature.mapper, writer, enclosingDeclaration);
            }
            else {
                buildDisplayForTypeParametersAndDelimiters(signature.typeParameters, writer, enclosingDeclaration, flags, symbolStack);
            }
            buildDisplayForParametersAndDelimiters(signature.thisParameter, signature.parameters, writer, enclosingDeclaration, flags, symbolStack);
            buildReturnTypeDisplay(signature, writer, enclosingDeclaration, flags, symbolStack);
        }
        return _displayBuilder || (_displayBuilder = {
            buildSymbolDisplay: buildSymbolDisplay,
            buildTypeDisplay: buildTypeDisplay,
            buildTypeParameterDisplay: buildTypeParameterDisplay,
            buildTypePredicateDisplay: buildTypePredicateDisplay,
            buildParameterDisplay: buildParameterDisplay,
            buildDisplayForParametersAndDelimiters: buildDisplayForParametersAndDelimiters,
            buildDisplayForTypeParametersAndDelimiters: buildDisplayForTypeParametersAndDelimiters,
            buildTypeParameterDisplayFromSymbol: buildTypeParameterDisplayFromSymbol,
            buildSignatureDisplay: buildSignatureDisplay,
            buildReturnTypeDisplay: buildReturnTypeDisplay
        });
    }
    function isDeclarationVisible(node) {
        if (node) {
            var links = getNodeLinks(node);
            if (links.isVisible === undefined) {
                links.isVisible = !!determineIfDeclarationIsVisible();
            }
            return links.isVisible;
        }
        return false;
        function determineIfDeclarationIsVisible() {
            switch (node.kind) {
                case 174:
                    return isDeclarationVisible(node.parent.parent);
                case 223:
                    if (ts.isBindingPattern(node.name) &&
                        !node.name.elements.length) {
                        return false;
                    }
                case 230:
                case 226:
                case 227:
                case 228:
                case 225:
                case 229:
                case 234:
                    if (ts.isExternalModuleAugmentation(node)) {
                        return true;
                    }
                    var parent_8 = getDeclarationContainer(node);
                    if (!(ts.getCombinedModifierFlags(node) & 1) &&
                        !(node.kind !== 234 && parent_8.kind !== 261 && ts.isInAmbientContext(parent_8))) {
                        return isGlobalSourceFile(parent_8);
                    }
                    return isDeclarationVisible(parent_8);
                case 147:
                case 146:
                case 151:
                case 152:
                case 149:
                case 148:
                    if (ts.getModifierFlags(node) & (8 | 16)) {
                        return false;
                    }
                case 150:
                case 154:
                case 153:
                case 155:
                case 144:
                case 231:
                case 158:
                case 159:
                case 161:
                case 157:
                case 162:
                case 163:
                case 164:
                case 165:
                case 166:
                    return isDeclarationVisible(node.parent);
                case 236:
                case 237:
                case 239:
                    return false;
                case 143:
                case 261:
                case 233:
                    return true;
                case 240:
                    return false;
                default:
                    return false;
            }
        }
    }
    function collectLinkedAliases(node) {
        var exportSymbol;
        if (node.parent && node.parent.kind === 240) {
            exportSymbol = resolveName(node.parent, node.text, 107455 | 793064 | 1920 | 8388608, ts.Diagnostics.Cannot_find_name_0, node);
        }
        else if (node.parent.kind === 243) {
            var exportSpecifier = node.parent;
            exportSymbol = exportSpecifier.parent.parent.moduleSpecifier ?
                getExternalModuleMember(exportSpecifier.parent.parent, exportSpecifier) :
                resolveEntityName(exportSpecifier.propertyName || exportSpecifier.name, 107455 | 793064 | 1920 | 8388608);
        }
        var result = [];
        if (exportSymbol) {
            buildVisibleNodeList(exportSymbol.declarations);
        }
        return result;
        function buildVisibleNodeList(declarations) {
            ts.forEach(declarations, function (declaration) {
                getNodeLinks(declaration).isVisible = true;
                var resultNode = getAnyImportSyntax(declaration) || declaration;
                if (!ts.contains(result, resultNode)) {
                    result.push(resultNode);
                }
                if (ts.isInternalModuleImportEqualsDeclaration(declaration)) {
                    var internalModuleReference = declaration.moduleReference;
                    var firstIdentifier = getFirstIdentifier(internalModuleReference);
                    var importSymbol = resolveName(declaration, firstIdentifier.text, 107455 | 793064 | 1920, undefined, undefined);
                    if (importSymbol) {
                        buildVisibleNodeList(importSymbol.declarations);
                    }
                }
            });
        }
    }
    function pushTypeResolution(target, propertyName) {
        var resolutionCycleStartIndex = findResolutionCycleStartIndex(target, propertyName);
        if (resolutionCycleStartIndex >= 0) {
            var length_2 = resolutionTargets.length;
            for (var i = resolutionCycleStartIndex; i < length_2; i++) {
                resolutionResults[i] = false;
            }
            return false;
        }
        resolutionTargets.push(target);
        resolutionResults.push(true);
        resolutionPropertyNames.push(propertyName);
        return true;
    }
    function findResolutionCycleStartIndex(target, propertyName) {
        for (var i = resolutionTargets.length - 1; i >= 0; i--) {
            if (hasType(resolutionTargets[i], resolutionPropertyNames[i])) {
                return -1;
            }
            if (resolutionTargets[i] === target && resolutionPropertyNames[i] === propertyName) {
                return i;
            }
        }
        return -1;
    }
    function hasType(target, propertyName) {
        if (propertyName === 0) {
            return getSymbolLinks(target).type;
        }
        if (propertyName === 2) {
            return getSymbolLinks(target).declaredType;
        }
        if (propertyName === 1) {
            return target.resolvedBaseConstructorType;
        }
        if (propertyName === 3) {
            return target.resolvedReturnType;
        }
        ts.Debug.fail("Unhandled TypeSystemPropertyName " + propertyName);
    }
    function popTypeResolution() {
        resolutionTargets.pop();
        resolutionPropertyNames.pop();
        return resolutionResults.pop();
    }
    function getDeclarationContainer(node) {
        node = ts.getRootDeclaration(node);
        while (node) {
            switch (node.kind) {
                case 223:
                case 224:
                case 239:
                case 238:
                case 237:
                case 236:
                    node = node.parent;
                    break;
                default:
                    return node.parent;
            }
        }
    }
    function getTypeOfPrototypeProperty(prototype) {
        var classType = getDeclaredTypeOfSymbol(getParentOfSymbol(prototype));
        return classType.typeParameters ? createTypeReference(classType, ts.map(classType.typeParameters, function (_) { return anyType; })) : classType;
    }
    function getTypeOfPropertyOfType(type, name) {
        var prop = getPropertyOfType(type, name);
        return prop ? getTypeOfSymbol(prop) : undefined;
    }
    function isTypeAny(type) {
        return type && (type.flags & 1) !== 0;
    }
    function isTypeNever(type) {
        return type && (type.flags & 8192) !== 0;
    }
    function getTypeForBindingElementParent(node) {
        var symbol = getSymbolOfNode(node);
        return symbol && getSymbolLinks(symbol).type || getTypeForVariableLikeDeclaration(node, false);
    }
    function isComputedNonLiteralName(name) {
        return name.kind === 142 && !ts.isStringOrNumericLiteral(name.expression);
    }
    function getRestType(source, properties, symbol) {
        source = filterType(source, function (t) { return !(t.flags & 6144); });
        if (source.flags & 8192) {
            return emptyObjectType;
        }
        if (source.flags & 65536) {
            return mapType(source, function (t) { return getRestType(t, properties, symbol); });
        }
        var members = ts.createMap();
        var names = ts.createMap();
        for (var _i = 0, properties_2 = properties; _i < properties_2.length; _i++) {
            var name_17 = properties_2[_i];
            names[ts.getTextOfPropertyName(name_17)] = true;
        }
        for (var _a = 0, _b = getPropertiesOfType(source); _a < _b.length; _a++) {
            var prop = _b[_a];
            var inNamesToRemove = prop.name in names;
            var isPrivate = getDeclarationModifierFlagsFromSymbol(prop) & (8 | 16);
            var isMethod = prop.flags & 8192;
            var isSetOnlyAccessor = prop.flags & 65536 && !(prop.flags & 32768);
            if (!inNamesToRemove && !isPrivate && !isMethod && !isSetOnlyAccessor) {
                members[prop.name] = prop;
            }
        }
        var stringIndexInfo = getIndexInfoOfType(source, 0);
        var numberIndexInfo = getIndexInfoOfType(source, 1);
        return createAnonymousType(symbol, members, emptyArray, emptyArray, stringIndexInfo, numberIndexInfo);
    }
    function getTypeForBindingElement(declaration) {
        var pattern = declaration.parent;
        var parentType = getTypeForBindingElementParent(pattern.parent);
        if (parentType === unknownType) {
            return unknownType;
        }
        if (!parentType || isTypeAny(parentType)) {
            if (declaration.initializer) {
                return checkDeclarationInitializer(declaration);
            }
            return parentType;
        }
        var type;
        if (pattern.kind === 172) {
            if (declaration.dotDotDotToken) {
                if (!isValidSpreadType(parentType)) {
                    error(declaration, ts.Diagnostics.Rest_types_may_only_be_created_from_object_types);
                    return unknownType;
                }
                var literalMembers = [];
                for (var _i = 0, _a = pattern.elements; _i < _a.length; _i++) {
                    var element = _a[_i];
                    if (!element.dotDotDotToken) {
                        literalMembers.push(element.propertyName || element.name);
                    }
                }
                type = getRestType(parentType, literalMembers, declaration.symbol);
            }
            else {
                var name_18 = declaration.propertyName || declaration.name;
                if (isComputedNonLiteralName(name_18)) {
                    return anyType;
                }
                if (declaration.initializer) {
                    getContextualType(declaration.initializer);
                }
                var text = ts.getTextOfPropertyName(name_18);
                type = getTypeOfPropertyOfType(parentType, text) ||
                    isNumericLiteralName(text) && getIndexTypeOfType(parentType, 1) ||
                    getIndexTypeOfType(parentType, 0);
                if (!type) {
                    error(name_18, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(parentType), ts.declarationNameToString(name_18));
                    return unknownType;
                }
            }
        }
        else {
            var elementType = checkIteratedTypeOrElementType(parentType, pattern, false);
            if (declaration.dotDotDotToken) {
                type = createArrayType(elementType);
            }
            else {
                var propName = "" + ts.indexOf(pattern.elements, declaration);
                type = isTupleLikeType(parentType)
                    ? getTypeOfPropertyOfType(parentType, propName)
                    : elementType;
                if (!type) {
                    if (isTupleType(parentType)) {
                        error(declaration, ts.Diagnostics.Tuple_type_0_with_length_1_cannot_be_assigned_to_tuple_with_length_2, typeToString(parentType), getTypeReferenceArity(parentType), pattern.elements.length);
                    }
                    else {
                        error(declaration, ts.Diagnostics.Type_0_has_no_property_1, typeToString(parentType), propName);
                    }
                    return unknownType;
                }
            }
        }
        if (strictNullChecks && declaration.initializer && !(getFalsyFlags(checkExpressionCached(declaration.initializer)) & 2048)) {
            type = getTypeWithFacts(type, 131072);
        }
        return declaration.initializer ?
            getUnionType([type, checkExpressionCached(declaration.initializer)], true) :
            type;
    }
    function getTypeForVariableLikeDeclarationFromJSDocComment(declaration) {
        var jsdocType = ts.getJSDocType(declaration);
        if (jsdocType) {
            return getTypeFromTypeNode(jsdocType);
        }
        return undefined;
    }
    function isNullOrUndefined(node) {
        var expr = ts.skipParentheses(node);
        return expr.kind === 94 || expr.kind === 70 && getResolvedSymbol(expr) === undefinedSymbol;
    }
    function isEmptyArrayLiteral(node) {
        var expr = ts.skipParentheses(node);
        return expr.kind === 175 && expr.elements.length === 0;
    }
    function addOptionality(type, optional) {
        return strictNullChecks && optional ? includeFalsyTypes(type, 2048) : type;
    }
    function getTypeForVariableLikeDeclaration(declaration, includeOptionality) {
        if (declaration.flags & 65536) {
            var type = getTypeForVariableLikeDeclarationFromJSDocComment(declaration);
            if (type && type !== unknownType) {
                return type;
            }
        }
        if (declaration.parent.parent.kind === 212) {
            var indexType = getIndexType(checkNonNullExpression(declaration.parent.parent.expression));
            return indexType.flags & (16384 | 262144) ? indexType : stringType;
        }
        if (declaration.parent.parent.kind === 213) {
            return checkRightHandSideOfForOf(declaration.parent.parent.expression) || anyType;
        }
        if (ts.isBindingPattern(declaration.parent)) {
            return getTypeForBindingElement(declaration);
        }
        if (declaration.type) {
            return addOptionality(getTypeFromTypeNode(declaration.type), declaration.questionToken && includeOptionality);
        }
        if ((compilerOptions.noImplicitAny || declaration.flags & 65536) &&
            declaration.kind === 223 && !ts.isBindingPattern(declaration.name) &&
            !(ts.getCombinedModifierFlags(declaration) & 1) && !ts.isInAmbientContext(declaration)) {
            if (!(ts.getCombinedNodeFlags(declaration) & 2) && (!declaration.initializer || isNullOrUndefined(declaration.initializer))) {
                return autoType;
            }
            if (declaration.initializer && isEmptyArrayLiteral(declaration.initializer)) {
                return autoArrayType;
            }
        }
        if (declaration.kind === 144) {
            var func = declaration.parent;
            if (func.kind === 152 && !ts.hasDynamicName(func)) {
                var getter = ts.getDeclarationOfKind(declaration.parent.symbol, 151);
                if (getter) {
                    var getterSignature = getSignatureFromDeclaration(getter);
                    var thisParameter = getAccessorThisParameter(func);
                    if (thisParameter && declaration === thisParameter) {
                        ts.Debug.assert(!thisParameter.type);
                        return getTypeOfSymbol(getterSignature.thisParameter);
                    }
                    return getReturnTypeOfSignature(getterSignature);
                }
            }
            var type = void 0;
            if (declaration.symbol.name === "this") {
                type = getContextualThisParameterType(func);
            }
            else {
                type = getContextuallyTypedParameterType(declaration);
            }
            if (type) {
                return addOptionality(type, declaration.questionToken && includeOptionality);
            }
        }
        if (declaration.initializer) {
            var type = checkDeclarationInitializer(declaration);
            return addOptionality(type, declaration.questionToken && includeOptionality);
        }
        if (declaration.kind === 258) {
            return checkIdentifier(declaration.name);
        }
        if (ts.isBindingPattern(declaration.name)) {
            return getTypeFromBindingPattern(declaration.name, false, true);
        }
        return undefined;
    }
    function getTypeFromBindingElement(element, includePatternInType, reportErrors) {
        if (element.initializer) {
            return checkDeclarationInitializer(element);
        }
        if (ts.isBindingPattern(element.name)) {
            return getTypeFromBindingPattern(element.name, includePatternInType, reportErrors);
        }
        if (reportErrors && compilerOptions.noImplicitAny && !declarationBelongsToPrivateAmbientMember(element)) {
            reportImplicitAnyError(element, anyType);
        }
        return anyType;
    }
    function getTypeFromObjectBindingPattern(pattern, includePatternInType, reportErrors) {
        var members = ts.createMap();
        var stringIndexInfo;
        var hasComputedProperties = false;
        ts.forEach(pattern.elements, function (e) {
            var name = e.propertyName || e.name;
            if (isComputedNonLiteralName(name)) {
                hasComputedProperties = true;
                return;
            }
            if (e.dotDotDotToken) {
                stringIndexInfo = createIndexInfo(anyType, false);
                return;
            }
            var text = ts.getTextOfPropertyName(name);
            var flags = 4 | 67108864 | (e.initializer ? 536870912 : 0);
            var symbol = createSymbol(flags, text);
            symbol.type = getTypeFromBindingElement(e, includePatternInType, reportErrors);
            symbol.bindingElement = e;
            members[symbol.name] = symbol;
        });
        var result = createAnonymousType(undefined, members, emptyArray, emptyArray, stringIndexInfo, undefined);
        if (includePatternInType) {
            result.pattern = pattern;
        }
        if (hasComputedProperties) {
            result.objectFlags |= 512;
        }
        return result;
    }
    function getTypeFromArrayBindingPattern(pattern, includePatternInType, reportErrors) {
        var elements = pattern.elements;
        var lastElement = ts.lastOrUndefined(elements);
        if (elements.length === 0 || (!ts.isOmittedExpression(lastElement) && lastElement.dotDotDotToken)) {
            return languageVersion >= 2 ? createIterableType(anyType) : anyArrayType;
        }
        var elementTypes = ts.map(elements, function (e) { return ts.isOmittedExpression(e) ? anyType : getTypeFromBindingElement(e, includePatternInType, reportErrors); });
        var result = createTupleType(elementTypes);
        if (includePatternInType) {
            result = cloneTypeReference(result);
            result.pattern = pattern;
        }
        return result;
    }
    function getTypeFromBindingPattern(pattern, includePatternInType, reportErrors) {
        return pattern.kind === 172
            ? getTypeFromObjectBindingPattern(pattern, includePatternInType, reportErrors)
            : getTypeFromArrayBindingPattern(pattern, includePatternInType, reportErrors);
    }
    function getWidenedTypeForVariableLikeDeclaration(declaration, reportErrors) {
        var type = getTypeForVariableLikeDeclaration(declaration, true);
        if (type) {
            if (reportErrors) {
                reportErrorsFromWidening(declaration, type);
            }
            if (declaration.kind === 257) {
                return type;
            }
            return getWidenedType(type);
        }
        type = declaration.dotDotDotToken ? anyArrayType : anyType;
        if (reportErrors && compilerOptions.noImplicitAny) {
            if (!declarationBelongsToPrivateAmbientMember(declaration)) {
                reportImplicitAnyError(declaration, type);
            }
        }
        return type;
    }
    function declarationBelongsToPrivateAmbientMember(declaration) {
        var root = ts.getRootDeclaration(declaration);
        var memberDeclaration = root.kind === 144 ? root.parent : root;
        return isPrivateWithinAmbient(memberDeclaration);
    }
    function getTypeOfVariableOrParameterOrProperty(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.type) {
            if (symbol.flags & 134217728) {
                return links.type = getTypeOfPrototypeProperty(symbol);
            }
            var declaration = symbol.valueDeclaration;
            if (ts.isCatchClauseVariableDeclarationOrBindingElement(declaration)) {
                return links.type = anyType;
            }
            if (declaration.kind === 240) {
                return links.type = checkExpression(declaration.expression);
            }
            if (declaration.flags & 65536 && declaration.kind === 286 && declaration.typeExpression) {
                return links.type = getTypeFromTypeNode(declaration.typeExpression.type);
            }
            if (!pushTypeResolution(symbol, 0)) {
                return unknownType;
            }
            var type = void 0;
            if (declaration.kind === 192 ||
                declaration.kind === 177 && declaration.parent.kind === 192) {
                if (declaration.flags & 65536) {
                    var jsdocType = ts.getJSDocType(declaration.parent);
                    if (jsdocType) {
                        return links.type = getTypeFromTypeNode(jsdocType);
                    }
                }
                var declaredTypes = ts.map(symbol.declarations, function (decl) { return decl.kind === 192 ?
                    checkExpressionCached(decl.right) :
                    checkExpressionCached(decl.parent.right); });
                type = getUnionType(declaredTypes, true);
            }
            else {
                type = getWidenedTypeForVariableLikeDeclaration(declaration, true);
            }
            if (!popTypeResolution()) {
                type = reportCircularityError(symbol);
            }
            links.type = type;
        }
        return links.type;
    }
    function getAnnotatedAccessorType(accessor) {
        if (accessor) {
            if (accessor.kind === 151) {
                return accessor.type && getTypeFromTypeNode(accessor.type);
            }
            else {
                var setterTypeAnnotation = ts.getSetAccessorTypeAnnotationNode(accessor);
                return setterTypeAnnotation && getTypeFromTypeNode(setterTypeAnnotation);
            }
        }
        return undefined;
    }
    function getAnnotatedAccessorThisParameter(accessor) {
        var parameter = getAccessorThisParameter(accessor);
        return parameter && parameter.symbol;
    }
    function getThisTypeOfDeclaration(declaration) {
        return getThisTypeOfSignature(getSignatureFromDeclaration(declaration));
    }
    function getTypeOfAccessors(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.type) {
            var getter = ts.getDeclarationOfKind(symbol, 151);
            var setter = ts.getDeclarationOfKind(symbol, 152);
            if (getter && getter.flags & 65536) {
                var jsDocType = getTypeForVariableLikeDeclarationFromJSDocComment(getter);
                if (jsDocType) {
                    return links.type = jsDocType;
                }
            }
            if (!pushTypeResolution(symbol, 0)) {
                return unknownType;
            }
            var type = void 0;
            var getterReturnType = getAnnotatedAccessorType(getter);
            if (getterReturnType) {
                type = getterReturnType;
            }
            else {
                var setterParameterType = getAnnotatedAccessorType(setter);
                if (setterParameterType) {
                    type = setterParameterType;
                }
                else {
                    if (getter && getter.body) {
                        type = getReturnTypeFromBody(getter);
                    }
                    else {
                        if (compilerOptions.noImplicitAny) {
                            if (setter) {
                                error(setter, ts.Diagnostics.Property_0_implicitly_has_type_any_because_its_set_accessor_lacks_a_parameter_type_annotation, symbolToString(symbol));
                            }
                            else {
                                ts.Debug.assert(!!getter, "there must existed getter as we are current checking either setter or getter in this function");
                                error(getter, ts.Diagnostics.Property_0_implicitly_has_type_any_because_its_get_accessor_lacks_a_return_type_annotation, symbolToString(symbol));
                            }
                        }
                        type = anyType;
                    }
                }
            }
            if (!popTypeResolution()) {
                type = anyType;
                if (compilerOptions.noImplicitAny) {
                    var getter_1 = ts.getDeclarationOfKind(symbol, 151);
                    error(getter_1, ts.Diagnostics._0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions, symbolToString(symbol));
                }
            }
            links.type = type;
        }
        return links.type;
    }
    function getTypeOfFuncClassEnumModule(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.type) {
            if (symbol.flags & 1536 && ts.isShorthandAmbientModuleSymbol(symbol)) {
                links.type = anyType;
            }
            else {
                var type = createObjectType(16, symbol);
                links.type = strictNullChecks && symbol.flags & 536870912 ?
                    includeFalsyTypes(type, 2048) : type;
            }
        }
        return links.type;
    }
    function getTypeOfEnumMember(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.type) {
            links.type = getDeclaredTypeOfEnumMember(symbol);
        }
        return links.type;
    }
    function getTypeOfAlias(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.type) {
            var targetSymbol = resolveAlias(symbol);
            links.type = targetSymbol.flags & 107455
                ? getTypeOfSymbol(targetSymbol)
                : unknownType;
        }
        return links.type;
    }
    function getTypeOfInstantiatedSymbol(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.type) {
            if (!pushTypeResolution(symbol, 0)) {
                return unknownType;
            }
            var type = instantiateType(getTypeOfSymbol(links.target), links.mapper);
            if (!popTypeResolution()) {
                type = reportCircularityError(symbol);
            }
            links.type = type;
        }
        return links.type;
    }
    function reportCircularityError(symbol) {
        if (symbol.valueDeclaration.type) {
            error(symbol.valueDeclaration, ts.Diagnostics._0_is_referenced_directly_or_indirectly_in_its_own_type_annotation, symbolToString(symbol));
            return unknownType;
        }
        if (compilerOptions.noImplicitAny) {
            error(symbol.valueDeclaration, ts.Diagnostics._0_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_and_is_referenced_directly_or_indirectly_in_its_own_initializer, symbolToString(symbol));
        }
        return anyType;
    }
    function getTypeOfSymbol(symbol) {
        if (symbol.flags & 16777216) {
            return getTypeOfInstantiatedSymbol(symbol);
        }
        if (symbol.flags & (3 | 4)) {
            return getTypeOfVariableOrParameterOrProperty(symbol);
        }
        if (symbol.flags & (16 | 8192 | 32 | 384 | 512)) {
            return getTypeOfFuncClassEnumModule(symbol);
        }
        if (symbol.flags & 8) {
            return getTypeOfEnumMember(symbol);
        }
        if (symbol.flags & 98304) {
            return getTypeOfAccessors(symbol);
        }
        if (symbol.flags & 8388608) {
            return getTypeOfAlias(symbol);
        }
        return unknownType;
    }
    function getTargetType(type) {
        return getObjectFlags(type) & 4 ? type.target : type;
    }
    function hasBaseType(type, checkBase) {
        return check(type);
        function check(type) {
            var target = getTargetType(type);
            return target === checkBase || ts.forEach(getBaseTypes(target), check);
        }
    }
    function appendTypeParameters(typeParameters, declarations) {
        for (var _i = 0, declarations_2 = declarations; _i < declarations_2.length; _i++) {
            var declaration = declarations_2[_i];
            var tp = getDeclaredTypeOfTypeParameter(getSymbolOfNode(declaration));
            if (!typeParameters) {
                typeParameters = [tp];
            }
            else if (!ts.contains(typeParameters, tp)) {
                typeParameters.push(tp);
            }
        }
        return typeParameters;
    }
    function appendOuterTypeParameters(typeParameters, node) {
        while (true) {
            node = node.parent;
            if (!node) {
                return typeParameters;
            }
            if (node.kind === 226 || node.kind === 197 ||
                node.kind === 225 || node.kind === 184 ||
                node.kind === 149 || node.kind === 185) {
                var declarations = node.typeParameters;
                if (declarations) {
                    return appendTypeParameters(appendOuterTypeParameters(typeParameters, node), declarations);
                }
            }
        }
    }
    function getOuterTypeParametersOfClassOrInterface(symbol) {
        var declaration = symbol.flags & 32 ? symbol.valueDeclaration : ts.getDeclarationOfKind(symbol, 227);
        return appendOuterTypeParameters(undefined, declaration);
    }
    function getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol) {
        var result;
        for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
            var node = _a[_i];
            if (node.kind === 227 || node.kind === 226 ||
                node.kind === 197 || node.kind === 228) {
                var declaration = node;
                if (declaration.typeParameters) {
                    result = appendTypeParameters(result, declaration.typeParameters);
                }
            }
        }
        return result;
    }
    function getTypeParametersOfClassOrInterface(symbol) {
        return ts.concatenate(getOuterTypeParametersOfClassOrInterface(symbol), getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol));
    }
    function isConstructorType(type) {
        return type.flags & 32768 && getSignaturesOfType(type, 1).length > 0;
    }
    function getBaseTypeNodeOfClass(type) {
        return ts.getClassExtendsHeritageClauseElement(type.symbol.valueDeclaration);
    }
    function getConstructorsForTypeArguments(type, typeArgumentNodes) {
        var typeArgCount = typeArgumentNodes ? typeArgumentNodes.length : 0;
        return ts.filter(getSignaturesOfType(type, 1), function (sig) { return (sig.typeParameters ? sig.typeParameters.length : 0) === typeArgCount; });
    }
    function getInstantiatedConstructorsForTypeArguments(type, typeArgumentNodes) {
        var signatures = getConstructorsForTypeArguments(type, typeArgumentNodes);
        if (typeArgumentNodes) {
            var typeArguments_1 = ts.map(typeArgumentNodes, getTypeFromTypeNode);
            signatures = ts.map(signatures, function (sig) { return getSignatureInstantiation(sig, typeArguments_1); });
        }
        return signatures;
    }
    function getBaseConstructorTypeOfClass(type) {
        if (!type.resolvedBaseConstructorType) {
            var baseTypeNode = getBaseTypeNodeOfClass(type);
            if (!baseTypeNode) {
                return type.resolvedBaseConstructorType = undefinedType;
            }
            if (!pushTypeResolution(type, 1)) {
                return unknownType;
            }
            var baseConstructorType = checkExpression(baseTypeNode.expression);
            if (baseConstructorType.flags & 32768) {
                resolveStructuredTypeMembers(baseConstructorType);
            }
            if (!popTypeResolution()) {
                error(type.symbol.valueDeclaration, ts.Diagnostics._0_is_referenced_directly_or_indirectly_in_its_own_base_expression, symbolToString(type.symbol));
                return type.resolvedBaseConstructorType = unknownType;
            }
            if (baseConstructorType !== unknownType && baseConstructorType !== nullWideningType && !isConstructorType(baseConstructorType)) {
                error(baseTypeNode.expression, ts.Diagnostics.Type_0_is_not_a_constructor_function_type, typeToString(baseConstructorType));
                return type.resolvedBaseConstructorType = unknownType;
            }
            type.resolvedBaseConstructorType = baseConstructorType;
        }
        return type.resolvedBaseConstructorType;
    }
    function getBaseTypes(type) {
        if (!type.resolvedBaseTypes) {
            if (type.objectFlags & 8) {
                type.resolvedBaseTypes = [createArrayType(getUnionType(type.typeParameters))];
            }
            else if (type.symbol.flags & (32 | 64)) {
                if (type.symbol.flags & 32) {
                    resolveBaseTypesOfClass(type);
                }
                if (type.symbol.flags & 64) {
                    resolveBaseTypesOfInterface(type);
                }
            }
            else {
                ts.Debug.fail("type must be class or interface");
            }
        }
        return type.resolvedBaseTypes;
    }
    function resolveBaseTypesOfClass(type) {
        type.resolvedBaseTypes = type.resolvedBaseTypes || emptyArray;
        var baseConstructorType = getBaseConstructorTypeOfClass(type);
        if (!(baseConstructorType.flags & 32768)) {
            return;
        }
        var baseTypeNode = getBaseTypeNodeOfClass(type);
        var baseType;
        var originalBaseType = baseConstructorType && baseConstructorType.symbol ? getDeclaredTypeOfSymbol(baseConstructorType.symbol) : undefined;
        if (baseConstructorType.symbol && baseConstructorType.symbol.flags & 32 &&
            areAllOuterTypeParametersApplied(originalBaseType)) {
            baseType = getTypeFromClassOrInterfaceReference(baseTypeNode, baseConstructorType.symbol);
        }
        else {
            var constructors = getInstantiatedConstructorsForTypeArguments(baseConstructorType, baseTypeNode.typeArguments);
            if (!constructors.length) {
                error(baseTypeNode.expression, ts.Diagnostics.No_base_constructor_has_the_specified_number_of_type_arguments);
                return;
            }
            baseType = getReturnTypeOfSignature(constructors[0]);
        }
        var valueDecl = type.symbol.valueDeclaration;
        if (valueDecl && ts.isInJavaScriptFile(valueDecl)) {
            var augTag = ts.getJSDocAugmentsTag(type.symbol.valueDeclaration);
            if (augTag) {
                baseType = getTypeFromTypeNode(augTag.typeExpression.type);
            }
        }
        if (baseType === unknownType) {
            return;
        }
        if (!(getObjectFlags(getTargetType(baseType)) & 3)) {
            error(baseTypeNode.expression, ts.Diagnostics.Base_constructor_return_type_0_is_not_a_class_or_interface_type, typeToString(baseType));
            return;
        }
        if (type === baseType || hasBaseType(baseType, type)) {
            error(valueDecl, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, undefined, 1));
            return;
        }
        if (type.resolvedBaseTypes === emptyArray) {
            type.resolvedBaseTypes = [baseType];
        }
        else {
            type.resolvedBaseTypes.push(baseType);
        }
    }
    function areAllOuterTypeParametersApplied(type) {
        var outerTypeParameters = type.outerTypeParameters;
        if (outerTypeParameters) {
            var last = outerTypeParameters.length - 1;
            var typeArguments = type.typeArguments;
            return outerTypeParameters[last].symbol !== typeArguments[last].symbol;
        }
        return true;
    }
    function resolveBaseTypesOfInterface(type) {
        type.resolvedBaseTypes = type.resolvedBaseTypes || emptyArray;
        for (var _i = 0, _a = type.symbol.declarations; _i < _a.length; _i++) {
            var declaration = _a[_i];
            if (declaration.kind === 227 && ts.getInterfaceBaseTypeNodes(declaration)) {
                for (var _b = 0, _c = ts.getInterfaceBaseTypeNodes(declaration); _b < _c.length; _b++) {
                    var node = _c[_b];
                    var baseType = getTypeFromTypeNode(node);
                    if (baseType !== unknownType) {
                        if (getObjectFlags(getTargetType(baseType)) & 3) {
                            if (type !== baseType && !hasBaseType(baseType, type)) {
                                if (type.resolvedBaseTypes === emptyArray) {
                                    type.resolvedBaseTypes = [baseType];
                                }
                                else {
                                    type.resolvedBaseTypes.push(baseType);
                                }
                            }
                            else {
                                error(declaration, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, undefined, 1));
                            }
                        }
                        else {
                            error(node, ts.Diagnostics.An_interface_may_only_extend_a_class_or_another_interface);
                        }
                    }
                }
            }
        }
    }
    function isIndependentInterface(symbol) {
        for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
            var declaration = _a[_i];
            if (declaration.kind === 227) {
                if (declaration.flags & 64) {
                    return false;
                }
                var baseTypeNodes = ts.getInterfaceBaseTypeNodes(declaration);
                if (baseTypeNodes) {
                    for (var _b = 0, baseTypeNodes_1 = baseTypeNodes; _b < baseTypeNodes_1.length; _b++) {
                        var node = baseTypeNodes_1[_b];
                        if (ts.isEntityNameExpression(node.expression)) {
                            var baseSymbol = resolveEntityName(node.expression, 793064, true);
                            if (!baseSymbol || !(baseSymbol.flags & 64) || getDeclaredTypeOfClassOrInterface(baseSymbol).thisType) {
                                return false;
                            }
                        }
                    }
                }
            }
        }
        return true;
    }
    function getDeclaredTypeOfClassOrInterface(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.declaredType) {
            var kind = symbol.flags & 32 ? 1 : 2;
            var type = links.declaredType = createObjectType(kind, symbol);
            var outerTypeParameters = getOuterTypeParametersOfClassOrInterface(symbol);
            var localTypeParameters = getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol);
            if (outerTypeParameters || localTypeParameters || kind === 1 || !isIndependentInterface(symbol)) {
                type.objectFlags |= 4;
                type.typeParameters = ts.concatenate(outerTypeParameters, localTypeParameters);
                type.outerTypeParameters = outerTypeParameters;
                type.localTypeParameters = localTypeParameters;
                type.instantiations = ts.createMap();
                type.instantiations[getTypeListId(type.typeParameters)] = type;
                type.target = type;
                type.typeArguments = type.typeParameters;
                type.thisType = createType(16384);
                type.thisType.isThisType = true;
                type.thisType.symbol = symbol;
                type.thisType.constraint = type;
            }
        }
        return links.declaredType;
    }
    function getDeclaredTypeOfTypeAlias(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.declaredType) {
            if (!pushTypeResolution(symbol, 2)) {
                return unknownType;
            }
            var declaration = ts.getDeclarationOfKind(symbol, 285);
            var type = void 0;
            if (declaration) {
                if (declaration.jsDocTypeLiteral) {
                    type = getTypeFromTypeNode(declaration.jsDocTypeLiteral);
                }
                else {
                    type = getTypeFromTypeNode(declaration.typeExpression.type);
                }
            }
            else {
                declaration = ts.getDeclarationOfKind(symbol, 228);
                type = getTypeFromTypeNode(declaration.type);
            }
            if (popTypeResolution()) {
                var typeParameters = getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol);
                if (typeParameters) {
                    links.typeParameters = typeParameters;
                    links.instantiations = ts.createMap();
                    links.instantiations[getTypeListId(typeParameters)] = type;
                }
            }
            else {
                type = unknownType;
                error(declaration.name, ts.Diagnostics.Type_alias_0_circularly_references_itself, symbolToString(symbol));
            }
            links.declaredType = type;
        }
        return links.declaredType;
    }
    function isLiteralEnumMember(symbol, member) {
        var expr = member.initializer;
        if (!expr) {
            return !ts.isInAmbientContext(member);
        }
        return expr.kind === 8 ||
            expr.kind === 190 && expr.operator === 37 &&
                expr.operand.kind === 8 ||
            expr.kind === 70 && !!symbol.exports[expr.text];
    }
    function enumHasLiteralMembers(symbol) {
        for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
            var declaration = _a[_i];
            if (declaration.kind === 229) {
                for (var _b = 0, _c = declaration.members; _b < _c.length; _b++) {
                    var member = _c[_b];
                    if (!isLiteralEnumMember(symbol, member)) {
                        return false;
                    }
                }
            }
        }
        return true;
    }
    function createEnumLiteralType(symbol, baseType, text) {
        var type = createType(256);
        type.symbol = symbol;
        type.baseType = baseType;
        type.text = text;
        return type;
    }
    function getDeclaredTypeOfEnum(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.declaredType) {
            var enumType = links.declaredType = createType(16);
            enumType.symbol = symbol;
            if (enumHasLiteralMembers(symbol)) {
                var memberTypeList = [];
                var memberTypes = ts.createMap();
                for (var _i = 0, _a = enumType.symbol.declarations; _i < _a.length; _i++) {
                    var declaration = _a[_i];
                    if (declaration.kind === 229) {
                        computeEnumMemberValues(declaration);
                        for (var _b = 0, _c = declaration.members; _b < _c.length; _b++) {
                            var member = _c[_b];
                            var memberSymbol = getSymbolOfNode(member);
                            var value = getEnumMemberValue(member);
                            if (!memberTypes[value]) {
                                var memberType = memberTypes[value] = createEnumLiteralType(memberSymbol, enumType, "" + value);
                                memberTypeList.push(memberType);
                            }
                        }
                    }
                }
                enumType.memberTypes = memberTypes;
                if (memberTypeList.length > 1) {
                    enumType.flags |= 65536;
                    enumType.types = memberTypeList;
                    unionTypes[getTypeListId(memberTypeList)] = enumType;
                }
            }
        }
        return links.declaredType;
    }
    function getDeclaredTypeOfEnumMember(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.declaredType) {
            var enumType = getDeclaredTypeOfEnum(getParentOfSymbol(symbol));
            links.declaredType = enumType.flags & 65536 ?
                enumType.memberTypes[getEnumMemberValue(symbol.valueDeclaration)] :
                enumType;
        }
        return links.declaredType;
    }
    function getDeclaredTypeOfTypeParameter(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.declaredType) {
            var type = createType(16384);
            type.symbol = symbol;
            if (!ts.getDeclarationOfKind(symbol, 143).constraint) {
                type.constraint = noConstraintType;
            }
            links.declaredType = type;
        }
        return links.declaredType;
    }
    function getDeclaredTypeOfAlias(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.declaredType) {
            links.declaredType = getDeclaredTypeOfSymbol(resolveAlias(symbol));
        }
        return links.declaredType;
    }
    function getDeclaredTypeOfSymbol(symbol) {
        ts.Debug.assert((symbol.flags & 16777216) === 0);
        if (symbol.flags & (32 | 64)) {
            return getDeclaredTypeOfClassOrInterface(symbol);
        }
        if (symbol.flags & 524288) {
            return getDeclaredTypeOfTypeAlias(symbol);
        }
        if (symbol.flags & 262144) {
            return getDeclaredTypeOfTypeParameter(symbol);
        }
        if (symbol.flags & 384) {
            return getDeclaredTypeOfEnum(symbol);
        }
        if (symbol.flags & 8) {
            return getDeclaredTypeOfEnumMember(symbol);
        }
        if (symbol.flags & 8388608) {
            return getDeclaredTypeOfAlias(symbol);
        }
        return unknownType;
    }
    function isIndependentTypeReference(node) {
        if (node.typeArguments) {
            for (var _i = 0, _a = node.typeArguments; _i < _a.length; _i++) {
                var typeNode = _a[_i];
                if (!isIndependentType(typeNode)) {
                    return false;
                }
            }
        }
        return true;
    }
    function isIndependentType(node) {
        switch (node.kind) {
            case 118:
            case 134:
            case 132:
            case 121:
            case 135:
            case 104:
            case 137:
            case 94:
            case 129:
            case 171:
                return true;
            case 162:
                return isIndependentType(node.elementType);
            case 157:
                return isIndependentTypeReference(node);
        }
        return false;
    }
    function isIndependentVariableLikeDeclaration(node) {
        return node.type && isIndependentType(node.type) || !node.type && !node.initializer;
    }
    function isIndependentFunctionLikeDeclaration(node) {
        if (node.kind !== 150 && (!node.type || !isIndependentType(node.type))) {
            return false;
        }
        for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
            var parameter = _a[_i];
            if (!isIndependentVariableLikeDeclaration(parameter)) {
                return false;
            }
        }
        return true;
    }
    function isIndependentMember(symbol) {
        if (symbol.declarations && symbol.declarations.length === 1) {
            var declaration = symbol.declarations[0];
            if (declaration) {
                switch (declaration.kind) {
                    case 147:
                    case 146:
                        return isIndependentVariableLikeDeclaration(declaration);
                    case 149:
                    case 148:
                    case 150:
                        return isIndependentFunctionLikeDeclaration(declaration);
                }
            }
        }
        return false;
    }
    function createSymbolTable(symbols) {
        var result = ts.createMap();
        for (var _i = 0, symbols_1 = symbols; _i < symbols_1.length; _i++) {
            var symbol = symbols_1[_i];
            result[symbol.name] = symbol;
        }
        return result;
    }
    function createInstantiatedSymbolTable(symbols, mapper, mappingThisOnly) {
        var result = ts.createMap();
        for (var _i = 0, symbols_2 = symbols; _i < symbols_2.length; _i++) {
            var symbol = symbols_2[_i];
            result[symbol.name] = mappingThisOnly && isIndependentMember(symbol) ? symbol : instantiateSymbol(symbol, mapper);
        }
        return result;
    }
    function addInheritedMembers(symbols, baseSymbols) {
        for (var _i = 0, baseSymbols_1 = baseSymbols; _i < baseSymbols_1.length; _i++) {
            var s = baseSymbols_1[_i];
            if (!symbols[s.name]) {
                symbols[s.name] = s;
            }
        }
    }
    function resolveDeclaredMembers(type) {
        if (!type.declaredProperties) {
            var symbol = type.symbol;
            type.declaredProperties = getNamedMembers(symbol.members);
            type.declaredCallSignatures = getSignaturesOfSymbol(symbol.members["__call"]);
            type.declaredConstructSignatures = getSignaturesOfSymbol(symbol.members["__new"]);
            type.declaredStringIndexInfo = getIndexInfoOfSymbol(symbol, 0);
            type.declaredNumberIndexInfo = getIndexInfoOfSymbol(symbol, 1);
        }
        return type;
    }
    function getTypeWithThisArgument(type, thisArgument) {
        if (getObjectFlags(type) & 4) {
            return createTypeReference(type.target, ts.concatenate(type.typeArguments, [thisArgument || type.target.thisType]));
        }
        return type;
    }
    function resolveObjectTypeMembers(type, source, typeParameters, typeArguments) {
        var mapper;
        var members;
        var callSignatures;
        var constructSignatures;
        var stringIndexInfo;
        var numberIndexInfo;
        if (ts.rangeEquals(typeParameters, typeArguments, 0, typeParameters.length)) {
            mapper = identityMapper;
            members = source.symbol ? source.symbol.members : createSymbolTable(source.declaredProperties);
            callSignatures = source.declaredCallSignatures;
            constructSignatures = source.declaredConstructSignatures;
            stringIndexInfo = source.declaredStringIndexInfo;
            numberIndexInfo = source.declaredNumberIndexInfo;
        }
        else {
            mapper = createTypeMapper(typeParameters, typeArguments);
            members = createInstantiatedSymbolTable(source.declaredProperties, mapper, typeParameters.length === 1);
            callSignatures = instantiateSignatures(source.declaredCallSignatures, mapper);
            constructSignatures = instantiateSignatures(source.declaredConstructSignatures, mapper);
            stringIndexInfo = instantiateIndexInfo(source.declaredStringIndexInfo, mapper);
            numberIndexInfo = instantiateIndexInfo(source.declaredNumberIndexInfo, mapper);
        }
        var baseTypes = getBaseTypes(source);
        if (baseTypes.length) {
            if (source.symbol && members === source.symbol.members) {
                members = createSymbolTable(source.declaredProperties);
            }
            var thisArgument = ts.lastOrUndefined(typeArguments);
            for (var _i = 0, baseTypes_1 = baseTypes; _i < baseTypes_1.length; _i++) {
                var baseType = baseTypes_1[_i];
                var instantiatedBaseType = thisArgument ? getTypeWithThisArgument(instantiateType(baseType, mapper), thisArgument) : baseType;
                addInheritedMembers(members, getPropertiesOfObjectType(instantiatedBaseType));
                callSignatures = ts.concatenate(callSignatures, getSignaturesOfType(instantiatedBaseType, 0));
                constructSignatures = ts.concatenate(constructSignatures, getSignaturesOfType(instantiatedBaseType, 1));
                stringIndexInfo = stringIndexInfo || getIndexInfoOfType(instantiatedBaseType, 0);
                numberIndexInfo = numberIndexInfo || getIndexInfoOfType(instantiatedBaseType, 1);
            }
        }
        setStructuredTypeMembers(type, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
    }
    function resolveClassOrInterfaceMembers(type) {
        resolveObjectTypeMembers(type, resolveDeclaredMembers(type), emptyArray, emptyArray);
    }
    function resolveTypeReferenceMembers(type) {
        var source = resolveDeclaredMembers(type.target);
        var typeParameters = ts.concatenate(source.typeParameters, [source.thisType]);
        var typeArguments = type.typeArguments && type.typeArguments.length === typeParameters.length ?
            type.typeArguments : ts.concatenate(type.typeArguments, [type]);
        resolveObjectTypeMembers(type, source, typeParameters, typeArguments);
    }
    function createSignature(declaration, typeParameters, thisParameter, parameters, resolvedReturnType, typePredicate, minArgumentCount, hasRestParameter, hasLiteralTypes) {
        var sig = new Signature(checker);
        sig.declaration = declaration;
        sig.typeParameters = typeParameters;
        sig.parameters = parameters;
        sig.thisParameter = thisParameter;
        sig.resolvedReturnType = resolvedReturnType;
        sig.typePredicate = typePredicate;
        sig.minArgumentCount = minArgumentCount;
        sig.hasRestParameter = hasRestParameter;
        sig.hasLiteralTypes = hasLiteralTypes;
        return sig;
    }
    function cloneSignature(sig) {
        return createSignature(sig.declaration, sig.typeParameters, sig.thisParameter, sig.parameters, sig.resolvedReturnType, sig.typePredicate, sig.minArgumentCount, sig.hasRestParameter, sig.hasLiteralTypes);
    }
    function getDefaultConstructSignatures(classType) {
        var baseConstructorType = getBaseConstructorTypeOfClass(classType);
        var baseSignatures = getSignaturesOfType(baseConstructorType, 1);
        if (baseSignatures.length === 0) {
            return [createSignature(undefined, classType.localTypeParameters, undefined, emptyArray, classType, undefined, 0, false, false)];
        }
        var baseTypeNode = getBaseTypeNodeOfClass(classType);
        var typeArguments = ts.map(baseTypeNode.typeArguments, getTypeFromTypeNode);
        var typeArgCount = typeArguments ? typeArguments.length : 0;
        var result = [];
        for (var _i = 0, baseSignatures_1 = baseSignatures; _i < baseSignatures_1.length; _i++) {
            var baseSig = baseSignatures_1[_i];
            var typeParamCount = baseSig.typeParameters ? baseSig.typeParameters.length : 0;
            if (typeParamCount === typeArgCount) {
                var sig = typeParamCount ? createSignatureInstantiation(baseSig, typeArguments) : cloneSignature(baseSig);
                sig.typeParameters = classType.localTypeParameters;
                sig.resolvedReturnType = classType;
                result.push(sig);
            }
        }
        return result;
    }
    function findMatchingSignature(signatureList, signature, partialMatch, ignoreThisTypes, ignoreReturnTypes) {
        for (var _i = 0, signatureList_1 = signatureList; _i < signatureList_1.length; _i++) {
            var s = signatureList_1[_i];
            if (compareSignaturesIdentical(s, signature, partialMatch, ignoreThisTypes, ignoreReturnTypes, compareTypesIdentical)) {
                return s;
            }
        }
    }
    function findMatchingSignatures(signatureLists, signature, listIndex) {
        if (signature.typeParameters) {
            if (listIndex > 0) {
                return undefined;
            }
            for (var i = 1; i < signatureLists.length; i++) {
                if (!findMatchingSignature(signatureLists[i], signature, false, false, false)) {
                    return undefined;
                }
            }
            return [signature];
        }
        var result = undefined;
        for (var i = 0; i < signatureLists.length; i++) {
            var match = i === listIndex ? signature : findMatchingSignature(signatureLists[i], signature, true, true, true);
            if (!match) {
                return undefined;
            }
            if (!ts.contains(result, match)) {
                (result || (result = [])).push(match);
            }
        }
        return result;
    }
    function getUnionSignatures(types, kind) {
        var signatureLists = ts.map(types, function (t) { return getSignaturesOfType(t, kind); });
        var result = undefined;
        for (var i = 0; i < signatureLists.length; i++) {
            for (var _i = 0, _a = signatureLists[i]; _i < _a.length; _i++) {
                var signature = _a[_i];
                if (!result || !findMatchingSignature(result, signature, false, true, true)) {
                    var unionSignatures = findMatchingSignatures(signatureLists, signature, i);
                    if (unionSignatures) {
                        var s = signature;
                        if (unionSignatures.length > 1) {
                            s = cloneSignature(signature);
                            if (ts.forEach(unionSignatures, function (sig) { return sig.thisParameter; })) {
                                var thisType = getUnionType(ts.map(unionSignatures, function (sig) { return getTypeOfSymbol(sig.thisParameter) || anyType; }), true);
                                s.thisParameter = createTransientSymbol(signature.thisParameter, thisType);
                            }
                            s.resolvedReturnType = undefined;
                            s.unionSignatures = unionSignatures;
                        }
                        (result || (result = [])).push(s);
                    }
                }
            }
        }
        return result || emptyArray;
    }
    function getUnionIndexInfo(types, kind) {
        var indexTypes = [];
        var isAnyReadonly = false;
        for (var _i = 0, types_1 = types; _i < types_1.length; _i++) {
            var type = types_1[_i];
            var indexInfo = getIndexInfoOfType(type, kind);
            if (!indexInfo) {
                return undefined;
            }
            indexTypes.push(indexInfo.type);
            isAnyReadonly = isAnyReadonly || indexInfo.isReadonly;
        }
        return createIndexInfo(getUnionType(indexTypes, true), isAnyReadonly);
    }
    function resolveUnionTypeMembers(type) {
        var callSignatures = getUnionSignatures(type.types, 0);
        var constructSignatures = getUnionSignatures(type.types, 1);
        var stringIndexInfo = getUnionIndexInfo(type.types, 0);
        var numberIndexInfo = getUnionIndexInfo(type.types, 1);
        setStructuredTypeMembers(type, emptySymbols, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
    }
    function intersectTypes(type1, type2) {
        return !type1 ? type2 : !type2 ? type1 : getIntersectionType([type1, type2]);
    }
    function intersectIndexInfos(info1, info2) {
        return !info1 ? info2 : !info2 ? info1 : createIndexInfo(getIntersectionType([info1.type, info2.type]), info1.isReadonly && info2.isReadonly);
    }
    function unionSpreadIndexInfos(info1, info2) {
        return info1 && info2 && createIndexInfo(getUnionType([info1.type, info2.type]), info1.isReadonly || info2.isReadonly);
    }
    function resolveIntersectionTypeMembers(type) {
        var callSignatures = emptyArray;
        var constructSignatures = emptyArray;
        var stringIndexInfo = undefined;
        var numberIndexInfo = undefined;
        for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
            var t = _a[_i];
            callSignatures = ts.concatenate(callSignatures, getSignaturesOfType(t, 0));
            constructSignatures = ts.concatenate(constructSignatures, getSignaturesOfType(t, 1));
            stringIndexInfo = intersectIndexInfos(stringIndexInfo, getIndexInfoOfType(t, 0));
            numberIndexInfo = intersectIndexInfos(numberIndexInfo, getIndexInfoOfType(t, 1));
        }
        setStructuredTypeMembers(type, emptySymbols, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
    }
    function resolveAnonymousTypeMembers(type) {
        var symbol = type.symbol;
        if (type.target) {
            var members = createInstantiatedSymbolTable(getPropertiesOfObjectType(type.target), type.mapper, false);
            var callSignatures = instantiateSignatures(getSignaturesOfType(type.target, 0), type.mapper);
            var constructSignatures = instantiateSignatures(getSignaturesOfType(type.target, 1), type.mapper);
            var stringIndexInfo = instantiateIndexInfo(getIndexInfoOfType(type.target, 0), type.mapper);
            var numberIndexInfo = instantiateIndexInfo(getIndexInfoOfType(type.target, 1), type.mapper);
            setStructuredTypeMembers(type, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
        }
        else if (symbol.flags & 2048) {
            var members = symbol.members;
            var callSignatures = getSignaturesOfSymbol(members["__call"]);
            var constructSignatures = getSignaturesOfSymbol(members["__new"]);
            var stringIndexInfo = getIndexInfoOfSymbol(symbol, 0);
            var numberIndexInfo = getIndexInfoOfSymbol(symbol, 1);
            setStructuredTypeMembers(type, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
        }
        else {
            var members = emptySymbols;
            var constructSignatures = emptyArray;
            if (symbol.flags & 1952) {
                members = getExportsOfSymbol(symbol);
            }
            if (symbol.flags & 32) {
                var classType = getDeclaredTypeOfClassOrInterface(symbol);
                constructSignatures = getSignaturesOfSymbol(symbol.members["__constructor"]);
                if (!constructSignatures.length) {
                    constructSignatures = getDefaultConstructSignatures(classType);
                }
                var baseConstructorType = getBaseConstructorTypeOfClass(classType);
                if (baseConstructorType.flags & 32768) {
                    members = createSymbolTable(getNamedMembers(members));
                    addInheritedMembers(members, getPropertiesOfObjectType(baseConstructorType));
                }
            }
            var numberIndexInfo = symbol.flags & 384 ? enumNumberIndexInfo : undefined;
            setStructuredTypeMembers(type, members, emptyArray, constructSignatures, undefined, numberIndexInfo);
            if (symbol.flags & (16 | 8192)) {
                type.callSignatures = getSignaturesOfSymbol(symbol);
            }
        }
    }
    function resolveMappedTypeMembers(type) {
        var members = ts.createMap();
        var stringIndexInfo;
        setStructuredTypeMembers(type, emptySymbols, emptyArray, emptyArray, undefined, undefined);
        var typeParameter = getTypeParameterFromMappedType(type);
        var constraintType = getConstraintTypeFromMappedType(type);
        var templateType = getTemplateTypeFromMappedType(type);
        var modifiersType = getApparentType(getModifiersTypeFromMappedType(type));
        var templateReadonly = !!type.declaration.readonlyToken;
        var templateOptional = !!type.declaration.questionToken;
        if (type.declaration.typeParameter.constraint.kind === 168) {
            forEachType(getLiteralTypeFromPropertyNames(modifiersType), addMemberForKeyType);
            if (getIndexInfoOfType(modifiersType, 0)) {
                addMemberForKeyType(stringType);
            }
        }
        else {
            var keyType = constraintType.flags & 540672 ? getApparentType(constraintType) : constraintType;
            var iterationType = keyType.flags & 262144 ? getIndexType(getApparentType(keyType.type)) : keyType;
            forEachType(iterationType, addMemberForKeyType);
        }
        setStructuredTypeMembers(type, members, emptyArray, emptyArray, stringIndexInfo, undefined);
        function addMemberForKeyType(t) {
            var iterationMapper = createUnaryTypeMapper(typeParameter, t);
            var templateMapper = type.mapper ? combineTypeMappers(type.mapper, iterationMapper) : iterationMapper;
            var propType = instantiateType(templateType, templateMapper);
            if (t.flags & 32) {
                var propName = t.text;
                var modifiersProp = getPropertyOfType(modifiersType, propName);
                var isOptional = templateOptional || !!(modifiersProp && modifiersProp.flags & 536870912);
                var prop = createSymbol(4 | 67108864 | (isOptional ? 536870912 : 0), propName);
                prop.type = propType;
                prop.isReadonly = templateReadonly || modifiersProp && isReadonlySymbol(modifiersProp);
                members[propName] = prop;
            }
            else if (t.flags & 2) {
                stringIndexInfo = createIndexInfo(propType, templateReadonly);
            }
        }
    }
    function getTypeParameterFromMappedType(type) {
        return type.typeParameter ||
            (type.typeParameter = getDeclaredTypeOfTypeParameter(getSymbolOfNode(type.declaration.typeParameter)));
    }
    function getConstraintTypeFromMappedType(type) {
        return type.constraintType ||
            (type.constraintType = instantiateType(getConstraintOfTypeParameter(getTypeParameterFromMappedType(type)), type.mapper || identityMapper) || unknownType);
    }
    function getTemplateTypeFromMappedType(type) {
        return type.templateType ||
            (type.templateType = type.declaration.type ?
                instantiateType(addOptionality(getTypeFromTypeNode(type.declaration.type), !!type.declaration.questionToken), type.mapper || identityMapper) :
                unknownType);
    }
    function getModifiersTypeFromMappedType(type) {
        if (!type.modifiersType) {
            var constraintDeclaration = type.declaration.typeParameter.constraint;
            if (constraintDeclaration.kind === 168) {
                type.modifiersType = instantiateType(getTypeFromTypeNode(constraintDeclaration.type), type.mapper || identityMapper);
            }
            else {
                var declaredType = getTypeFromMappedTypeNode(type.declaration);
                var constraint = getConstraintTypeFromMappedType(declaredType);
                var extendedConstraint = constraint && constraint.flags & 16384 ? getConstraintOfTypeParameter(constraint) : constraint;
                type.modifiersType = extendedConstraint && extendedConstraint.flags & 262144 ? instantiateType(extendedConstraint.type, type.mapper || identityMapper) : emptyObjectType;
            }
        }
        return type.modifiersType;
    }
    function getErasedTemplateTypeFromMappedType(type) {
        return instantiateType(getTemplateTypeFromMappedType(type), createUnaryTypeMapper(getTypeParameterFromMappedType(type), anyType));
    }
    function isGenericMappedType(type) {
        if (getObjectFlags(type) & 32) {
            var constraintType = getConstraintTypeFromMappedType(type);
            return maybeTypeOfKind(constraintType, 540672 | 262144);
        }
        return false;
    }
    function resolveStructuredTypeMembers(type) {
        if (!type.members) {
            if (type.flags & 32768) {
                if (type.objectFlags & 4) {
                    resolveTypeReferenceMembers(type);
                }
                else if (type.objectFlags & 3) {
                    resolveClassOrInterfaceMembers(type);
                }
                else if (type.objectFlags & 16) {
                    resolveAnonymousTypeMembers(type);
                }
                else if (type.objectFlags & 32) {
                    resolveMappedTypeMembers(type);
                }
            }
            else if (type.flags & 65536) {
                resolveUnionTypeMembers(type);
            }
            else if (type.flags & 131072) {
                resolveIntersectionTypeMembers(type);
            }
        }
        return type;
    }
    function getPropertiesOfObjectType(type) {
        if (type.flags & 32768) {
            return resolveStructuredTypeMembers(type).properties;
        }
        return emptyArray;
    }
    function getPropertyOfObjectType(type, name) {
        if (type.flags & 32768) {
            var resolved = resolveStructuredTypeMembers(type);
            var symbol = resolved.members[name];
            if (symbol && symbolIsValue(symbol)) {
                return symbol;
            }
        }
    }
    function getPropertiesOfUnionOrIntersectionType(type) {
        for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
            var current = _a[_i];
            for (var _b = 0, _c = getPropertiesOfType(current); _b < _c.length; _b++) {
                var prop = _c[_b];
                getUnionOrIntersectionProperty(type, prop.name);
            }
            if (type.flags & 65536) {
                break;
            }
        }
        var props = type.resolvedProperties;
        if (props) {
            var result = [];
            for (var key in props) {
                var prop = props[key];
                if (!(prop.flags & 268435456 && prop.isPartial)) {
                    result.push(prop);
                }
            }
            return result;
        }
        return emptyArray;
    }
    function getPropertiesOfType(type) {
        type = getApparentType(type);
        return type.flags & 196608 ?
            getPropertiesOfUnionOrIntersectionType(type) :
            getPropertiesOfObjectType(type);
    }
    function getApparentTypeOfTypeVariable(type) {
        if (!type.resolvedApparentType) {
            var constraintType = getConstraintOfTypeVariable(type);
            while (constraintType && constraintType.flags & 16384) {
                constraintType = getConstraintOfTypeVariable(constraintType);
            }
            type.resolvedApparentType = getTypeWithThisArgument(constraintType || emptyObjectType, type);
        }
        return type.resolvedApparentType;
    }
    function getApparentType(type) {
        var t = type.flags & 540672 ? getApparentTypeOfTypeVariable(type) : type;
        return t.flags & 262178 ? globalStringType :
            t.flags & 340 ? globalNumberType :
                t.flags & 136 ? globalBooleanType :
                    t.flags & 512 ? getGlobalESSymbolType() :
                        t;
    }
    function createUnionOrIntersectionProperty(containingType, name) {
        var types = containingType.types;
        var props;
        var commonFlags = (containingType.flags & 131072) ? 536870912 : 0;
        var isReadonly = false;
        var isPartial = false;
        for (var _i = 0, types_2 = types; _i < types_2.length; _i++) {
            var current = types_2[_i];
            var type = getApparentType(current);
            if (type !== unknownType) {
                var prop = getPropertyOfType(type, name);
                if (prop && !(getDeclarationModifierFlagsFromSymbol(prop) & (8 | 16))) {
                    commonFlags &= prop.flags;
                    if (!props) {
                        props = [prop];
                    }
                    else if (!ts.contains(props, prop)) {
                        props.push(prop);
                    }
                    if (isReadonlySymbol(prop)) {
                        isReadonly = true;
                    }
                }
                else if (containingType.flags & 65536) {
                    isPartial = true;
                }
            }
        }
        if (!props) {
            return undefined;
        }
        if (props.length === 1 && !isPartial) {
            return props[0];
        }
        var propTypes = [];
        var declarations = [];
        var commonType = undefined;
        var hasNonUniformType = false;
        for (var _a = 0, props_1 = props; _a < props_1.length; _a++) {
            var prop = props_1[_a];
            if (prop.declarations) {
                ts.addRange(declarations, prop.declarations);
            }
            var type = getTypeOfSymbol(prop);
            if (!commonType) {
                commonType = type;
            }
            else if (type !== commonType) {
                hasNonUniformType = true;
            }
            propTypes.push(type);
        }
        var result = createSymbol(4 | 67108864 | 268435456 | commonFlags, name);
        result.containingType = containingType;
        result.hasNonUniformType = hasNonUniformType;
        result.isPartial = isPartial;
        result.declarations = declarations;
        result.isReadonly = isReadonly;
        result.type = containingType.flags & 65536 ? getUnionType(propTypes) : getIntersectionType(propTypes);
        return result;
    }
    function getUnionOrIntersectionProperty(type, name) {
        var properties = type.resolvedProperties || (type.resolvedProperties = ts.createMap());
        var property = properties[name];
        if (!property) {
            property = createUnionOrIntersectionProperty(type, name);
            if (property) {
                properties[name] = property;
            }
        }
        return property;
    }
    function getPropertyOfUnionOrIntersectionType(type, name) {
        var property = getUnionOrIntersectionProperty(type, name);
        return property && !(property.flags & 268435456 && property.isPartial) ? property : undefined;
    }
    function getPropertyOfType(type, name) {
        type = getApparentType(type);
        if (type.flags & 32768) {
            var resolved = resolveStructuredTypeMembers(type);
            var symbol = resolved.members[name];
            if (symbol && symbolIsValue(symbol)) {
                return symbol;
            }
            if (resolved === anyFunctionType || resolved.callSignatures.length || resolved.constructSignatures.length) {
                var symbol_1 = getPropertyOfObjectType(globalFunctionType, name);
                if (symbol_1) {
                    return symbol_1;
                }
            }
            return getPropertyOfObjectType(globalObjectType, name);
        }
        if (type.flags & 196608) {
            return getPropertyOfUnionOrIntersectionType(type, name);
        }
        return undefined;
    }
    function getSignaturesOfStructuredType(type, kind) {
        if (type.flags & 229376) {
            var resolved = resolveStructuredTypeMembers(type);
            return kind === 0 ? resolved.callSignatures : resolved.constructSignatures;
        }
        return emptyArray;
    }
    function getSignaturesOfType(type, kind) {
        return getSignaturesOfStructuredType(getApparentType(type), kind);
    }
    function getIndexInfoOfStructuredType(type, kind) {
        if (type.flags & 229376) {
            var resolved = resolveStructuredTypeMembers(type);
            return kind === 0 ? resolved.stringIndexInfo : resolved.numberIndexInfo;
        }
    }
    function getIndexTypeOfStructuredType(type, kind) {
        var info = getIndexInfoOfStructuredType(type, kind);
        return info && info.type;
    }
    function getIndexInfoOfType(type, kind) {
        return getIndexInfoOfStructuredType(getApparentType(type), kind);
    }
    function getIndexTypeOfType(type, kind) {
        return getIndexTypeOfStructuredType(getApparentType(type), kind);
    }
    function getImplicitIndexTypeOfType(type, kind) {
        if (isObjectLiteralType(type)) {
            var propTypes = [];
            for (var _i = 0, _a = getPropertiesOfType(type); _i < _a.length; _i++) {
                var prop = _a[_i];
                if (kind === 0 || isNumericLiteralName(prop.name)) {
                    propTypes.push(getTypeOfSymbol(prop));
                }
            }
            if (propTypes.length) {
                return getUnionType(propTypes, true);
            }
        }
        return undefined;
    }
    function getTypeParametersFromJSDocTemplate(declaration) {
        if (declaration.flags & 65536) {
            var templateTag = ts.getJSDocTemplateTag(declaration);
            if (templateTag) {
                return getTypeParametersFromDeclaration(templateTag.typeParameters);
            }
        }
        return undefined;
    }
    function getTypeParametersFromDeclaration(typeParameterDeclarations) {
        var result = [];
        ts.forEach(typeParameterDeclarations, function (node) {
            var tp = getDeclaredTypeOfTypeParameter(node.symbol);
            if (!ts.contains(result, tp)) {
                result.push(tp);
            }
        });
        return result;
    }
    function symbolsToArray(symbols) {
        var result = [];
        for (var id in symbols) {
            if (!isReservedMemberName(id)) {
                result.push(symbols[id]);
            }
        }
        return result;
    }
    function isJSDocOptionalParameter(node) {
        if (node.flags & 65536) {
            if (node.type && node.type.kind === 273) {
                return true;
            }
            var paramTags = ts.getJSDocParameterTags(node);
            if (paramTags) {
                for (var _i = 0, paramTags_1 = paramTags; _i < paramTags_1.length; _i++) {
                    var paramTag = paramTags_1[_i];
                    if (paramTag.isBracketed) {
                        return true;
                    }
                    if (paramTag.typeExpression) {
                        return paramTag.typeExpression.type.kind === 273;
                    }
                }
            }
        }
    }
    function tryFindAmbientModule(moduleName, withAugmentations) {
        if (ts.isExternalModuleNameRelative(moduleName)) {
            return undefined;
        }
        var symbol = getSymbol(globals, "\"" + moduleName + "\"", 512);
        return symbol && withAugmentations ? getMergedSymbol(symbol) : symbol;
    }
    function isOptionalParameter(node) {
        if (ts.hasQuestionToken(node) || isJSDocOptionalParameter(node)) {
            return true;
        }
        if (node.initializer) {
            var signatureDeclaration = node.parent;
            var signature = getSignatureFromDeclaration(signatureDeclaration);
            var parameterIndex = ts.indexOf(signatureDeclaration.parameters, node);
            ts.Debug.assert(parameterIndex >= 0);
            return parameterIndex >= signature.minArgumentCount;
        }
        return false;
    }
    function createTypePredicateFromTypePredicateNode(node) {
        if (node.parameterName.kind === 70) {
            var parameterName = node.parameterName;
            return {
                kind: 1,
                parameterName: parameterName ? parameterName.text : undefined,
                parameterIndex: parameterName ? getTypePredicateParameterIndex(node.parent.parameters, parameterName) : undefined,
                type: getTypeFromTypeNode(node.type)
            };
        }
        else {
            return {
                kind: 0,
                type: getTypeFromTypeNode(node.type)
            };
        }
    }
    function getSignatureFromDeclaration(declaration) {
        var links = getNodeLinks(declaration);
        if (!links.resolvedSignature) {
            var parameters = [];
            var hasLiteralTypes = false;
            var minArgumentCount = -1;
            var thisParameter = undefined;
            var hasThisParameter = void 0;
            var isJSConstructSignature = ts.isJSDocConstructSignature(declaration);
            for (var i = isJSConstructSignature ? 1 : 0, n = declaration.parameters.length; i < n; i++) {
                var param = declaration.parameters[i];
                var paramSymbol = param.symbol;
                if (paramSymbol && !!(paramSymbol.flags & 4) && !ts.isBindingPattern(param.name)) {
                    var resolvedSymbol = resolveName(param, paramSymbol.name, 107455, undefined, undefined);
                    paramSymbol = resolvedSymbol;
                }
                if (i === 0 && paramSymbol.name === "this") {
                    hasThisParameter = true;
                    thisParameter = param.symbol;
                }
                else {
                    parameters.push(paramSymbol);
                }
                if (param.type && param.type.kind === 171) {
                    hasLiteralTypes = true;
                }
                if (param.initializer || param.questionToken || param.dotDotDotToken || isJSDocOptionalParameter(param)) {
                    if (minArgumentCount < 0) {
                        minArgumentCount = i - (hasThisParameter ? 1 : 0);
                    }
                }
                else {
                    minArgumentCount = -1;
                }
            }
            if ((declaration.kind === 151 || declaration.kind === 152) &&
                !ts.hasDynamicName(declaration) &&
                (!hasThisParameter || !thisParameter)) {
                var otherKind = declaration.kind === 151 ? 152 : 151;
                var other = ts.getDeclarationOfKind(declaration.symbol, otherKind);
                if (other) {
                    thisParameter = getAnnotatedAccessorThisParameter(other);
                }
            }
            if (minArgumentCount < 0) {
                minArgumentCount = declaration.parameters.length - (hasThisParameter ? 1 : 0);
            }
            if (isJSConstructSignature) {
                minArgumentCount--;
            }
            var classType = declaration.kind === 150 ?
                getDeclaredTypeOfClassOrInterface(getMergedSymbol(declaration.parent.symbol))
                : undefined;
            var typeParameters = classType ? classType.localTypeParameters :
                declaration.typeParameters ? getTypeParametersFromDeclaration(declaration.typeParameters) :
                    getTypeParametersFromJSDocTemplate(declaration);
            var returnType = getSignatureReturnTypeFromDeclaration(declaration, isJSConstructSignature, classType);
            var typePredicate = declaration.type && declaration.type.kind === 156 ?
                createTypePredicateFromTypePredicateNode(declaration.type) :
                undefined;
            links.resolvedSignature = createSignature(declaration, typeParameters, thisParameter, parameters, returnType, typePredicate, minArgumentCount, ts.hasRestParameter(declaration), hasLiteralTypes);
        }
        return links.resolvedSignature;
    }
    function getSignatureReturnTypeFromDeclaration(declaration, isJSConstructSignature, classType) {
        if (isJSConstructSignature) {
            return getTypeFromTypeNode(declaration.parameters[0].type);
        }
        else if (classType) {
            return classType;
        }
        else if (declaration.type) {
            return getTypeFromTypeNode(declaration.type);
        }
        if (declaration.flags & 65536) {
            var type = getReturnTypeFromJSDocComment(declaration);
            if (type && type !== unknownType) {
                return type;
            }
        }
        if (declaration.kind === 151 && !ts.hasDynamicName(declaration)) {
            var setter = ts.getDeclarationOfKind(declaration.symbol, 152);
            return getAnnotatedAccessorType(setter);
        }
        if (ts.nodeIsMissing(declaration.body)) {
            return anyType;
        }
    }
    function getSignaturesOfSymbol(symbol) {
        if (!symbol)
            return emptyArray;
        var result = [];
        for (var i = 0, len = symbol.declarations.length; i < len; i++) {
            var node = symbol.declarations[i];
            switch (node.kind) {
                case 158:
                case 159:
                case 225:
                case 149:
                case 148:
                case 150:
                case 153:
                case 154:
                case 155:
                case 151:
                case 152:
                case 184:
                case 185:
                case 274:
                    if (i > 0 && node.body) {
                        var previous = symbol.declarations[i - 1];
                        if (node.parent === previous.parent && node.kind === previous.kind && node.pos === previous.end) {
                            break;
                        }
                    }
                    result.push(getSignatureFromDeclaration(node));
            }
        }
        return result;
    }
    function resolveExternalModuleTypeByLiteral(name) {
        var moduleSym = resolveExternalModuleName(name, name);
        if (moduleSym) {
            var resolvedModuleSymbol = resolveExternalModuleSymbol(moduleSym);
            if (resolvedModuleSymbol) {
                return getTypeOfSymbol(resolvedModuleSymbol);
            }
        }
        return anyType;
    }
    function getThisTypeOfSignature(signature) {
        if (signature.thisParameter) {
            return getTypeOfSymbol(signature.thisParameter);
        }
    }
    function getReturnTypeOfSignature(signature) {
        if (!signature.resolvedReturnType) {
            if (!pushTypeResolution(signature, 3)) {
                return unknownType;
            }
            var type = void 0;
            if (signature.target) {
                type = instantiateType(getReturnTypeOfSignature(signature.target), signature.mapper);
            }
            else if (signature.unionSignatures) {
                type = getUnionType(ts.map(signature.unionSignatures, getReturnTypeOfSignature), true);
            }
            else {
                type = getReturnTypeFromBody(signature.declaration);
            }
            if (!popTypeResolution()) {
                type = anyType;
                if (compilerOptions.noImplicitAny) {
                    var declaration = signature.declaration;
                    if (declaration.name) {
                        error(declaration.name, ts.Diagnostics._0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions, ts.declarationNameToString(declaration.name));
                    }
                    else {
                        error(declaration, ts.Diagnostics.Function_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions);
                    }
                }
            }
            signature.resolvedReturnType = type;
        }
        return signature.resolvedReturnType;
    }
    function getRestTypeOfSignature(signature) {
        if (signature.hasRestParameter) {
            var type = getTypeOfSymbol(ts.lastOrUndefined(signature.parameters));
            if (getObjectFlags(type) & 4 && type.target === globalArrayType) {
                return type.typeArguments[0];
            }
        }
        return anyType;
    }
    function getSignatureInstantiation(signature, typeArguments) {
        var instantiations = signature.instantiations || (signature.instantiations = ts.createMap());
        var id = getTypeListId(typeArguments);
        return instantiations[id] || (instantiations[id] = createSignatureInstantiation(signature, typeArguments));
    }
    function createSignatureInstantiation(signature, typeArguments) {
        return instantiateSignature(signature, createTypeMapper(signature.typeParameters, typeArguments), true);
    }
    function getErasedSignature(signature) {
        if (!signature.typeParameters)
            return signature;
        if (!signature.erasedSignatureCache) {
            signature.erasedSignatureCache = instantiateSignature(signature, createTypeEraser(signature.typeParameters), true);
        }
        return signature.erasedSignatureCache;
    }
    function getOrCreateTypeFromSignature(signature) {
        if (!signature.isolatedSignatureType) {
            var isConstructor = signature.declaration.kind === 150 || signature.declaration.kind === 154;
            var type = createObjectType(16);
            type.members = emptySymbols;
            type.properties = emptyArray;
            type.callSignatures = !isConstructor ? [signature] : emptyArray;
            type.constructSignatures = isConstructor ? [signature] : emptyArray;
            signature.isolatedSignatureType = type;
        }
        return signature.isolatedSignatureType;
    }
    function getIndexSymbol(symbol) {
        return symbol.members["__index"];
    }
    function getIndexDeclarationOfSymbol(symbol, kind) {
        var syntaxKind = kind === 1 ? 132 : 134;
        var indexSymbol = getIndexSymbol(symbol);
        if (indexSymbol) {
            for (var _i = 0, _a = indexSymbol.declarations; _i < _a.length; _i++) {
                var decl = _a[_i];
                var node = decl;
                if (node.parameters.length === 1) {
                    var parameter = node.parameters[0];
                    if (parameter && parameter.type && parameter.type.kind === syntaxKind) {
                        return node;
                    }
                }
            }
        }
        return undefined;
    }
    function createIndexInfo(type, isReadonly, declaration) {
        return { type: type, isReadonly: isReadonly, declaration: declaration };
    }
    function getIndexInfoOfSymbol(symbol, kind) {
        var declaration = getIndexDeclarationOfSymbol(symbol, kind);
        if (declaration) {
            return createIndexInfo(declaration.type ? getTypeFromTypeNode(declaration.type) : anyType, (ts.getModifierFlags(declaration) & 64) !== 0, declaration);
        }
        return undefined;
    }
    function getConstraintDeclaration(type) {
        return ts.getDeclarationOfKind(type.symbol, 143).constraint;
    }
    function hasConstraintReferenceTo(type, target) {
        var checked;
        while (type && type.flags & 16384 && !(type.isThisType) && !ts.contains(checked, type)) {
            if (type === target) {
                return true;
            }
            (checked || (checked = [])).push(type);
            var constraintDeclaration = getConstraintDeclaration(type);
            type = constraintDeclaration && getTypeFromTypeNode(constraintDeclaration);
        }
        return false;
    }
    function getConstraintOfTypeParameter(typeParameter) {
        if (!typeParameter.constraint) {
            if (typeParameter.target) {
                var targetConstraint = getConstraintOfTypeParameter(typeParameter.target);
                typeParameter.constraint = targetConstraint ? instantiateType(targetConstraint, typeParameter.mapper) : noConstraintType;
            }
            else {
                var constraintDeclaration = getConstraintDeclaration(typeParameter);
                var constraint = getTypeFromTypeNode(constraintDeclaration);
                if (hasConstraintReferenceTo(constraint, typeParameter)) {
                    error(constraintDeclaration, ts.Diagnostics.Type_parameter_0_has_a_circular_constraint, typeToString(typeParameter));
                    constraint = unknownType;
                }
                typeParameter.constraint = constraint;
            }
        }
        return typeParameter.constraint === noConstraintType ? undefined : typeParameter.constraint;
    }
    function getConstraintOfTypeVariable(type) {
        return type.flags & 16384 ? getConstraintOfTypeParameter(type) :
            type.flags & 524288 ? type.constraint :
                undefined;
    }
    function getParentSymbolOfTypeParameter(typeParameter) {
        return getSymbolOfNode(ts.getDeclarationOfKind(typeParameter.symbol, 143).parent);
    }
    function getTypeListId(types) {
        var result = "";
        if (types) {
            var length_3 = types.length;
            var i = 0;
            while (i < length_3) {
                var startId = types[i].id;
                var count = 1;
                while (i + count < length_3 && types[i + count].id === startId + count) {
                    count++;
                }
                if (result.length) {
                    result += ",";
                }
                result += startId;
                if (count > 1) {
                    result += ":" + count;
                }
                i += count;
            }
        }
        return result;
    }
    function getPropagatingFlagsOfTypes(types, excludeKinds) {
        var result = 0;
        for (var _i = 0, types_3 = types; _i < types_3.length; _i++) {
            var type = types_3[_i];
            if (!(type.flags & excludeKinds)) {
                result |= type.flags;
            }
        }
        return result & 14680064;
    }
    function createTypeReference(target, typeArguments) {
        var id = getTypeListId(typeArguments);
        var type = target.instantiations[id];
        if (!type) {
            type = target.instantiations[id] = createObjectType(4, target.symbol);
            type.flags |= typeArguments ? getPropagatingFlagsOfTypes(typeArguments, 0) : 0;
            type.target = target;
            type.typeArguments = typeArguments;
        }
        return type;
    }
    function cloneTypeReference(source) {
        var type = createType(source.flags);
        type.symbol = source.symbol;
        type.objectFlags = source.objectFlags;
        type.target = source.target;
        type.typeArguments = source.typeArguments;
        return type;
    }
    function getTypeReferenceArity(type) {
        return type.target.typeParameters ? type.target.typeParameters.length : 0;
    }
    function getTypeFromClassOrInterfaceReference(node, symbol) {
        var type = getDeclaredTypeOfSymbol(getMergedSymbol(symbol));
        var typeParameters = type.localTypeParameters;
        if (typeParameters) {
            if (!node.typeArguments || node.typeArguments.length !== typeParameters.length) {
                error(node, ts.Diagnostics.Generic_type_0_requires_1_type_argument_s, typeToString(type, undefined, 1), typeParameters.length);
                return unknownType;
            }
            return createTypeReference(type, ts.concatenate(type.outerTypeParameters, ts.map(node.typeArguments, getTypeFromTypeNode)));
        }
        if (node.typeArguments) {
            error(node, ts.Diagnostics.Type_0_is_not_generic, typeToString(type));
            return unknownType;
        }
        return type;
    }
    function getTypeAliasInstantiation(symbol, typeArguments) {
        var type = getDeclaredTypeOfSymbol(symbol);
        var links = getSymbolLinks(symbol);
        var typeParameters = links.typeParameters;
        var id = getTypeListId(typeArguments);
        return links.instantiations[id] || (links.instantiations[id] = instantiateTypeNoAlias(type, createTypeMapper(typeParameters, typeArguments)));
    }
    function getTypeFromTypeAliasReference(node, symbol) {
        var type = getDeclaredTypeOfSymbol(symbol);
        var typeParameters = getSymbolLinks(symbol).typeParameters;
        if (typeParameters) {
            if (!node.typeArguments || node.typeArguments.length !== typeParameters.length) {
                error(node, ts.Diagnostics.Generic_type_0_requires_1_type_argument_s, symbolToString(symbol), typeParameters.length);
                return unknownType;
            }
            var typeArguments = ts.map(node.typeArguments, getTypeFromTypeNode);
            return getTypeAliasInstantiation(symbol, typeArguments);
        }
        if (node.typeArguments) {
            error(node, ts.Diagnostics.Type_0_is_not_generic, symbolToString(symbol));
            return unknownType;
        }
        return type;
    }
    function getTypeFromNonGenericTypeReference(node, symbol) {
        if (node.typeArguments) {
            error(node, ts.Diagnostics.Type_0_is_not_generic, symbolToString(symbol));
            return unknownType;
        }
        return getDeclaredTypeOfSymbol(symbol);
    }
    function getTypeReferenceName(node) {
        switch (node.kind) {
            case 157:
                return node.typeName;
            case 272:
                return node.name;
            case 199:
                var expr = node.expression;
                if (ts.isEntityNameExpression(expr)) {
                    return expr;
                }
        }
        return undefined;
    }
    function resolveTypeReferenceName(typeReferenceName) {
        if (!typeReferenceName) {
            return unknownSymbol;
        }
        return resolveEntityName(typeReferenceName, 793064) || unknownSymbol;
    }
    function getTypeReferenceType(node, symbol) {
        if (symbol === unknownSymbol) {
            return unknownType;
        }
        if (symbol.flags & (32 | 64)) {
            return getTypeFromClassOrInterfaceReference(node, symbol);
        }
        if (symbol.flags & 524288) {
            return getTypeFromTypeAliasReference(node, symbol);
        }
        if (symbol.flags & 107455 && node.kind === 272) {
            return getTypeOfSymbol(symbol);
        }
        return getTypeFromNonGenericTypeReference(node, symbol);
    }
    function getTypeFromTypeReference(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            var symbol = void 0;
            var type = void 0;
            if (node.kind === 272) {
                var typeReferenceName = getTypeReferenceName(node);
                symbol = resolveTypeReferenceName(typeReferenceName);
                type = getTypeReferenceType(node, symbol);
            }
            else {
                var typeNameOrExpression = node.kind === 157
                    ? node.typeName
                    : ts.isEntityNameExpression(node.expression)
                        ? node.expression
                        : undefined;
                symbol = typeNameOrExpression && resolveEntityName(typeNameOrExpression, 793064) || unknownSymbol;
                type = symbol === unknownSymbol ? unknownType :
                    symbol.flags & (32 | 64) ? getTypeFromClassOrInterfaceReference(node, symbol) :
                        symbol.flags & 524288 ? getTypeFromTypeAliasReference(node, symbol) :
                            getTypeFromNonGenericTypeReference(node, symbol);
            }
            links.resolvedSymbol = symbol;
            links.resolvedType = type;
        }
        return links.resolvedType;
    }
    function getTypeFromTypeQueryNode(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            links.resolvedType = getWidenedType(checkExpression(node.exprName));
        }
        return links.resolvedType;
    }
    function getTypeOfGlobalSymbol(symbol, arity) {
        function getTypeDeclaration(symbol) {
            var declarations = symbol.declarations;
            for (var _i = 0, declarations_3 = declarations; _i < declarations_3.length; _i++) {
                var declaration = declarations_3[_i];
                switch (declaration.kind) {
                    case 226:
                    case 227:
                    case 229:
                        return declaration;
                }
            }
        }
        if (!symbol) {
            return arity ? emptyGenericType : emptyObjectType;
        }
        var type = getDeclaredTypeOfSymbol(symbol);
        if (!(type.flags & 32768)) {
            error(getTypeDeclaration(symbol), ts.Diagnostics.Global_type_0_must_be_a_class_or_interface_type, symbol.name);
            return arity ? emptyGenericType : emptyObjectType;
        }
        if ((type.typeParameters ? type.typeParameters.length : 0) !== arity) {
            error(getTypeDeclaration(symbol), ts.Diagnostics.Global_type_0_must_have_1_type_parameter_s, symbol.name, arity);
            return arity ? emptyGenericType : emptyObjectType;
        }
        return type;
    }
    function getGlobalValueSymbol(name) {
        return getGlobalSymbol(name, 107455, ts.Diagnostics.Cannot_find_global_value_0);
    }
    function getGlobalTypeSymbol(name) {
        return getGlobalSymbol(name, 793064, ts.Diagnostics.Cannot_find_global_type_0);
    }
    function getGlobalSymbol(name, meaning, diagnostic) {
        return resolveName(undefined, name, meaning, diagnostic, name);
    }
    function getGlobalType(name, arity) {
        if (arity === void 0) { arity = 0; }
        return getTypeOfGlobalSymbol(getGlobalTypeSymbol(name), arity);
    }
    function getExportedTypeFromNamespace(namespace, name) {
        var namespaceSymbol = getGlobalSymbol(namespace, 1920, undefined);
        var typeSymbol = namespaceSymbol && getSymbol(namespaceSymbol.exports, name, 793064);
        return typeSymbol && getDeclaredTypeOfSymbol(typeSymbol);
    }
    function createTypedPropertyDescriptorType(propertyType) {
        var globalTypedPropertyDescriptorType = getGlobalTypedPropertyDescriptorType();
        return globalTypedPropertyDescriptorType !== emptyGenericType
            ? createTypeReference(globalTypedPropertyDescriptorType, [propertyType])
            : emptyObjectType;
    }
    function createTypeFromGenericGlobalType(genericGlobalType, typeArguments) {
        return genericGlobalType !== emptyGenericType ? createTypeReference(genericGlobalType, typeArguments) : emptyObjectType;
    }
    function createIterableType(elementType) {
        return createTypeFromGenericGlobalType(getGlobalIterableType(), [elementType]);
    }
    function createIterableIteratorType(elementType) {
        return createTypeFromGenericGlobalType(getGlobalIterableIteratorType(), [elementType]);
    }
    function createArrayType(elementType) {
        return createTypeFromGenericGlobalType(globalArrayType, [elementType]);
    }
    function getTypeFromArrayTypeNode(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            links.resolvedType = createArrayType(getTypeFromTypeNode(node.elementType));
        }
        return links.resolvedType;
    }
    function createTupleTypeOfArity(arity) {
        var typeParameters = [];
        var properties = [];
        for (var i = 0; i < arity; i++) {
            var typeParameter = createType(16384);
            typeParameters.push(typeParameter);
            var property = createSymbol(4 | 67108864, "" + i);
            property.type = typeParameter;
            properties.push(property);
        }
        var type = createObjectType(8 | 4);
        type.typeParameters = typeParameters;
        type.outerTypeParameters = undefined;
        type.localTypeParameters = typeParameters;
        type.instantiations = ts.createMap();
        type.instantiations[getTypeListId(type.typeParameters)] = type;
        type.target = type;
        type.typeArguments = type.typeParameters;
        type.thisType = createType(16384);
        type.thisType.isThisType = true;
        type.thisType.constraint = type;
        type.declaredProperties = properties;
        type.declaredCallSignatures = emptyArray;
        type.declaredConstructSignatures = emptyArray;
        type.declaredStringIndexInfo = undefined;
        type.declaredNumberIndexInfo = undefined;
        return type;
    }
    function getTupleTypeOfArity(arity) {
        return tupleTypes[arity] || (tupleTypes[arity] = createTupleTypeOfArity(arity));
    }
    function createTupleType(elementTypes) {
        return createTypeReference(getTupleTypeOfArity(elementTypes.length), elementTypes);
    }
    function getTypeFromTupleTypeNode(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            links.resolvedType = createTupleType(ts.map(node.elementTypes, getTypeFromTypeNode));
        }
        return links.resolvedType;
    }
    function binarySearchTypes(types, type) {
        var low = 0;
        var high = types.length - 1;
        var typeId = type.id;
        while (low <= high) {
            var middle = low + ((high - low) >> 1);
            var id = types[middle].id;
            if (id === typeId) {
                return middle;
            }
            else if (id > typeId) {
                high = middle - 1;
            }
            else {
                low = middle + 1;
            }
        }
        return ~low;
    }
    function containsType(types, type) {
        return binarySearchTypes(types, type) >= 0;
    }
    function addTypeToUnion(typeSet, type) {
        var flags = type.flags;
        if (flags & 65536) {
            addTypesToUnion(typeSet, type.types);
        }
        else if (flags & 1) {
            typeSet.containsAny = true;
        }
        else if (!strictNullChecks && flags & 6144) {
            if (flags & 2048)
                typeSet.containsUndefined = true;
            if (flags & 4096)
                typeSet.containsNull = true;
            if (!(flags & 2097152))
                typeSet.containsNonWideningType = true;
        }
        else if (!(flags & 8192)) {
            if (flags & 2)
                typeSet.containsString = true;
            if (flags & 4)
                typeSet.containsNumber = true;
            if (flags & 96)
                typeSet.containsStringOrNumberLiteral = true;
            var len = typeSet.length;
            var index = len && type.id > typeSet[len - 1].id ? ~len : binarySearchTypes(typeSet, type);
            if (index < 0) {
                if (!(flags & 32768 && type.objectFlags & 16 &&
                    type.symbol && type.symbol.flags & (16 | 8192) && containsIdenticalType(typeSet, type))) {
                    typeSet.splice(~index, 0, type);
                }
            }
        }
    }
    function addTypesToUnion(typeSet, types) {
        for (var _i = 0, types_4 = types; _i < types_4.length; _i++) {
            var type = types_4[_i];
            addTypeToUnion(typeSet, type);
        }
    }
    function containsIdenticalType(types, type) {
        for (var _i = 0, types_5 = types; _i < types_5.length; _i++) {
            var t = types_5[_i];
            if (isTypeIdenticalTo(t, type)) {
                return true;
            }
        }
        return false;
    }
    function isSubtypeOfAny(candidate, types) {
        for (var i = 0, len = types.length; i < len; i++) {
            if (candidate !== types[i] && isTypeSubtypeOf(candidate, types[i])) {
                return true;
            }
        }
        return false;
    }
    function isSetOfLiteralsFromSameEnum(types) {
        var first = types[0];
        if (first.flags & 256) {
            var firstEnum = getParentOfSymbol(first.symbol);
            for (var i = 1; i < types.length; i++) {
                var other = types[i];
                if (!(other.flags & 256) || (firstEnum !== getParentOfSymbol(other.symbol))) {
                    return false;
                }
            }
            return true;
        }
        return false;
    }
    function removeSubtypes(types) {
        if (types.length === 0 || isSetOfLiteralsFromSameEnum(types)) {
            return;
        }
        var i = types.length;
        while (i > 0) {
            i--;
            if (isSubtypeOfAny(types[i], types)) {
                ts.orderedRemoveItemAt(types, i);
            }
        }
    }
    function removeRedundantLiteralTypes(types) {
        var i = types.length;
        while (i > 0) {
            i--;
            var t = types[i];
            var remove = t.flags & 32 && types.containsString ||
                t.flags & 64 && types.containsNumber ||
                t.flags & 96 && t.flags & 1048576 && containsType(types, t.regularType);
            if (remove) {
                ts.orderedRemoveItemAt(types, i);
            }
        }
    }
    function getUnionType(types, subtypeReduction, aliasSymbol, aliasTypeArguments) {
        if (types.length === 0) {
            return neverType;
        }
        if (types.length === 1) {
            return types[0];
        }
        var typeSet = [];
        addTypesToUnion(typeSet, types);
        if (typeSet.containsAny) {
            return anyType;
        }
        if (subtypeReduction) {
            removeSubtypes(typeSet);
        }
        else if (typeSet.containsStringOrNumberLiteral) {
            removeRedundantLiteralTypes(typeSet);
        }
        if (typeSet.length === 0) {
            return typeSet.containsNull ? typeSet.containsNonWideningType ? nullType : nullWideningType :
                typeSet.containsUndefined ? typeSet.containsNonWideningType ? undefinedType : undefinedWideningType :
                    neverType;
        }
        return getUnionTypeFromSortedList(typeSet, aliasSymbol, aliasTypeArguments);
    }
    function getUnionTypeFromSortedList(types, aliasSymbol, aliasTypeArguments) {
        if (types.length === 0) {
            return neverType;
        }
        if (types.length === 1) {
            return types[0];
        }
        var id = getTypeListId(types);
        var type = unionTypes[id];
        if (!type) {
            var propagatedFlags = getPropagatingFlagsOfTypes(types, 6144);
            type = unionTypes[id] = createType(65536 | propagatedFlags);
            type.types = types;
            type.aliasSymbol = aliasSymbol;
            type.aliasTypeArguments = aliasTypeArguments;
        }
        return type;
    }
    function getTypeFromUnionTypeNode(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            links.resolvedType = getUnionType(ts.map(node.types, getTypeFromTypeNode), false, getAliasSymbolForTypeNode(node), getAliasTypeArgumentsForTypeNode(node));
        }
        return links.resolvedType;
    }
    function addTypeToIntersection(typeSet, type) {
        if (type.flags & 131072) {
            addTypesToIntersection(typeSet, type.types);
        }
        else if (type.flags & 1) {
            typeSet.containsAny = true;
        }
        else if (!(type.flags & 8192) && (strictNullChecks || !(type.flags & 6144)) && !ts.contains(typeSet, type)) {
            if (type.flags & 65536 && typeSet.unionIndex === undefined) {
                typeSet.unionIndex = typeSet.length;
            }
            typeSet.push(type);
        }
    }
    function addTypesToIntersection(typeSet, types) {
        for (var _i = 0, types_6 = types; _i < types_6.length; _i++) {
            var type = types_6[_i];
            addTypeToIntersection(typeSet, type);
        }
    }
    function getIntersectionType(types, aliasSymbol, aliasTypeArguments) {
        if (types.length === 0) {
            return emptyObjectType;
        }
        var typeSet = [];
        addTypesToIntersection(typeSet, types);
        if (typeSet.containsAny) {
            return anyType;
        }
        if (typeSet.length === 1) {
            return typeSet[0];
        }
        var unionIndex = typeSet.unionIndex;
        if (unionIndex !== undefined) {
            var unionType = typeSet[unionIndex];
            return getUnionType(ts.map(unionType.types, function (t) { return getIntersectionType(ts.replaceElement(typeSet, unionIndex, t)); }), false, aliasSymbol, aliasTypeArguments);
        }
        var id = getTypeListId(typeSet);
        var type = intersectionTypes[id];
        if (!type) {
            var propagatedFlags = getPropagatingFlagsOfTypes(typeSet, 6144);
            type = intersectionTypes[id] = createType(131072 | propagatedFlags);
            type.types = typeSet;
            type.aliasSymbol = aliasSymbol;
            type.aliasTypeArguments = aliasTypeArguments;
        }
        return type;
    }
    function getTypeFromIntersectionTypeNode(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            links.resolvedType = getIntersectionType(ts.map(node.types, getTypeFromTypeNode), getAliasSymbolForTypeNode(node), getAliasTypeArgumentsForTypeNode(node));
        }
        return links.resolvedType;
    }
    function getIndexTypeForGenericType(type) {
        if (!type.resolvedIndexType) {
            type.resolvedIndexType = createType(262144);
            type.resolvedIndexType.type = type;
        }
        return type.resolvedIndexType;
    }
    function getLiteralTypeFromPropertyName(prop) {
        return getDeclarationModifierFlagsFromSymbol(prop) & 24 || ts.startsWith(prop.name, "__@") ?
            neverType :
            getLiteralTypeForText(32, ts.unescapeIdentifier(prop.name));
    }
    function getLiteralTypeFromPropertyNames(type) {
        return getUnionType(ts.map(getPropertiesOfType(type), getLiteralTypeFromPropertyName));
    }
    function getIndexType(type) {
        return maybeTypeOfKind(type, 540672) ? getIndexTypeForGenericType(type) :
            getObjectFlags(type) & 32 ? getConstraintTypeFromMappedType(type) :
                type.flags & 1 || getIndexInfoOfType(type, 0) ? stringType :
                    getLiteralTypeFromPropertyNames(type);
    }
    function getIndexTypeOrString(type) {
        var indexType = getIndexType(type);
        return indexType !== neverType ? indexType : stringType;
    }
    function getTypeFromTypeOperatorNode(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            links.resolvedType = getIndexType(getTypeFromTypeNode(node.type));
        }
        return links.resolvedType;
    }
    function createIndexedAccessType(objectType, indexType) {
        var type = createType(524288);
        type.objectType = objectType;
        type.indexType = indexType;
        if (type.objectType.flags & 229376) {
            type.constraint = getIndexTypeOfType(type.objectType, 0);
        }
        else if (type.objectType.flags & 540672) {
            var apparentType = getApparentTypeOfTypeVariable(type.objectType);
            if (apparentType !== emptyObjectType) {
                type.constraint = isTypeOfKind(type.indexType, 262178) ?
                    getIndexedAccessType(apparentType, type.indexType) :
                    getIndexTypeOfType(apparentType, 0);
            }
        }
        return type;
    }
    function getPropertyTypeForIndexType(objectType, indexType, accessNode, cacheSymbol) {
        var accessExpression = accessNode && accessNode.kind === 178 ? accessNode : undefined;
        var propName = indexType.flags & (32 | 64 | 256) ?
            indexType.text :
            accessExpression && checkThatExpressionIsProperSymbolReference(accessExpression.argumentExpression, indexType, false) ?
                ts.getPropertyNameForKnownSymbolName(accessExpression.argumentExpression.name.text) :
                undefined;
        if (propName) {
            var prop = getPropertyOfType(objectType, propName);
            if (prop) {
                if (accessExpression) {
                    if (ts.isAssignmentTarget(accessExpression) && (isReferenceToReadonlyEntity(accessExpression, prop) || isReferenceThroughNamespaceImport(accessExpression))) {
                        error(accessExpression.argumentExpression, ts.Diagnostics.Cannot_assign_to_0_because_it_is_a_constant_or_a_read_only_property, symbolToString(prop));
                        return unknownType;
                    }
                    if (cacheSymbol) {
                        getNodeLinks(accessNode).resolvedSymbol = prop;
                    }
                }
                return getTypeOfSymbol(prop);
            }
        }
        if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 262178 | 340 | 512)) {
            if (isTypeAny(objectType)) {
                return anyType;
            }
            var indexInfo = isTypeAnyOrAllConstituentTypesHaveKind(indexType, 340) && getIndexInfoOfType(objectType, 1) ||
                getIndexInfoOfType(objectType, 0) ||
                undefined;
            if (indexInfo) {
                if (accessExpression && ts.isAssignmentTarget(accessExpression) && indexInfo.isReadonly) {
                    error(accessExpression, ts.Diagnostics.Index_signature_in_type_0_only_permits_reading, typeToString(objectType));
                    return unknownType;
                }
                return indexInfo.type;
            }
            if (accessExpression && !isConstEnumObjectType(objectType)) {
                if (compilerOptions.noImplicitAny && !compilerOptions.suppressImplicitAnyIndexErrors) {
                    if (getIndexTypeOfType(objectType, 1)) {
                        error(accessExpression.argumentExpression, ts.Diagnostics.Element_implicitly_has_an_any_type_because_index_expression_is_not_of_type_number);
                    }
                    else {
                        error(accessExpression, ts.Diagnostics.Element_implicitly_has_an_any_type_because_type_0_has_no_index_signature, typeToString(objectType));
                    }
                }
                return anyType;
            }
        }
        if (accessNode) {
            var indexNode = accessNode.kind === 178 ? accessNode.argumentExpression : accessNode.indexType;
            if (indexType.flags & (32 | 64)) {
                error(indexNode, ts.Diagnostics.Property_0_does_not_exist_on_type_1, indexType.text, typeToString(objectType));
            }
            else if (indexType.flags & (2 | 4)) {
                error(indexNode, ts.Diagnostics.Type_0_has_no_matching_index_signature_for_type_1, typeToString(objectType), typeToString(indexType));
            }
            else {
                error(indexNode, ts.Diagnostics.Type_0_cannot_be_used_as_an_index_type, typeToString(indexType));
            }
        }
        return unknownType;
    }
    function getIndexedAccessForMappedType(type, indexType, accessNode) {
        var accessExpression = accessNode && accessNode.kind === 178 ? accessNode : undefined;
        if (accessExpression && ts.isAssignmentTarget(accessExpression) && type.declaration.readonlyToken) {
            error(accessExpression, ts.Diagnostics.Index_signature_in_type_0_only_permits_reading, typeToString(type));
            return unknownType;
        }
        var mapper = createUnaryTypeMapper(getTypeParameterFromMappedType(type), indexType);
        var templateMapper = type.mapper ? combineTypeMappers(type.mapper, mapper) : mapper;
        return instantiateType(getTemplateTypeFromMappedType(type), templateMapper);
    }
    function getIndexedAccessType(objectType, indexType, accessNode) {
        if (maybeTypeOfKind(indexType, 540672 | 262144) ||
            maybeTypeOfKind(objectType, 540672) && !(accessNode && accessNode.kind === 178) ||
            isGenericMappedType(objectType)) {
            if (objectType.flags & 1) {
                return objectType;
            }
            if (accessNode) {
                if (!isTypeAssignableTo(indexType, getIndexType(objectType))) {
                    error(accessNode, ts.Diagnostics.Type_0_cannot_be_used_to_index_type_1, typeToString(indexType), typeToString(objectType));
                    return unknownType;
                }
            }
            if (isGenericMappedType(objectType)) {
                return getIndexedAccessForMappedType(objectType, indexType, accessNode);
            }
            var id = objectType.id + "," + indexType.id;
            return indexedAccessTypes[id] || (indexedAccessTypes[id] = createIndexedAccessType(objectType, indexType));
        }
        var apparentObjectType = getApparentType(objectType);
        if (indexType.flags & 65536 && !(indexType.flags & 8190)) {
            var propTypes = [];
            for (var _i = 0, _a = indexType.types; _i < _a.length; _i++) {
                var t = _a[_i];
                var propType = getPropertyTypeForIndexType(apparentObjectType, t, accessNode, false);
                if (propType === unknownType) {
                    return unknownType;
                }
                propTypes.push(propType);
            }
            return getUnionType(propTypes);
        }
        return getPropertyTypeForIndexType(apparentObjectType, indexType, accessNode, true);
    }
    function getTypeFromIndexedAccessTypeNode(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            links.resolvedType = getIndexedAccessType(getTypeFromTypeNode(node.objectType), getTypeFromTypeNode(node.indexType), node);
        }
        return links.resolvedType;
    }
    function getTypeFromMappedTypeNode(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            var type = createObjectType(32, node.symbol);
            type.declaration = node;
            type.aliasSymbol = getAliasSymbolForTypeNode(node);
            type.aliasTypeArguments = getAliasTypeArgumentsForTypeNode(node);
            links.resolvedType = type;
            getConstraintTypeFromMappedType(type);
        }
        return links.resolvedType;
    }
    function getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            var aliasSymbol = getAliasSymbolForTypeNode(node);
            if (ts.isEmpty(node.symbol.members) && !aliasSymbol) {
                links.resolvedType = emptyTypeLiteralType;
            }
            else {
                var type = createObjectType(16, node.symbol);
                type.aliasSymbol = aliasSymbol;
                type.aliasTypeArguments = getAliasTypeArgumentsForTypeNode(node);
                links.resolvedType = type;
            }
        }
        return links.resolvedType;
    }
    function getAliasSymbolForTypeNode(node) {
        return node.parent.kind === 228 ? getSymbolOfNode(node.parent) : undefined;
    }
    function getAliasTypeArgumentsForTypeNode(node) {
        var symbol = getAliasSymbolForTypeNode(node);
        return symbol ? getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol) : undefined;
    }
    function getSpreadType(left, right, isFromObjectLiteral) {
        if (left.flags & 1 || right.flags & 1) {
            return anyType;
        }
        left = filterType(left, function (t) { return !(t.flags & 6144); });
        if (left.flags & 8192) {
            return right;
        }
        right = filterType(right, function (t) { return !(t.flags & 6144); });
        if (right.flags & 8192) {
            return left;
        }
        if (left.flags & 65536) {
            return mapType(left, function (t) { return getSpreadType(t, right, isFromObjectLiteral); });
        }
        if (right.flags & 65536) {
            return mapType(right, function (t) { return getSpreadType(left, t, isFromObjectLiteral); });
        }
        var members = ts.createMap();
        var skippedPrivateMembers = ts.createMap();
        var stringIndexInfo;
        var numberIndexInfo;
        if (left === emptyObjectType) {
            stringIndexInfo = getIndexInfoOfType(right, 0);
            numberIndexInfo = getIndexInfoOfType(right, 1);
        }
        else {
            stringIndexInfo = unionSpreadIndexInfos(getIndexInfoOfType(left, 0), getIndexInfoOfType(right, 0));
            numberIndexInfo = unionSpreadIndexInfos(getIndexInfoOfType(left, 1), getIndexInfoOfType(right, 1));
        }
        for (var _i = 0, _a = getPropertiesOfType(right); _i < _a.length; _i++) {
            var rightProp = _a[_i];
            var isOwnProperty = !(rightProp.flags & 8192) || isFromObjectLiteral;
            var isSetterWithoutGetter = rightProp.flags & 65536 && !(rightProp.flags & 32768);
            if (getDeclarationModifierFlagsFromSymbol(rightProp) & (8 | 16)) {
                skippedPrivateMembers[rightProp.name] = true;
            }
            else if (isOwnProperty && !isSetterWithoutGetter) {
                members[rightProp.name] = rightProp;
            }
        }
        for (var _b = 0, _c = getPropertiesOfType(left); _b < _c.length; _b++) {
            var leftProp = _c[_b];
            if (leftProp.flags & 65536 && !(leftProp.flags & 32768)
                || leftProp.name in skippedPrivateMembers) {
                continue;
            }
            if (leftProp.name in members) {
                var rightProp = members[leftProp.name];
                var rightType = getTypeOfSymbol(rightProp);
                if (maybeTypeOfKind(rightType, 2048) || rightProp.flags & 536870912) {
                    var declarations = ts.concatenate(leftProp.declarations, rightProp.declarations);
                    var flags = 4 | 67108864 | (leftProp.flags & 536870912);
                    var result = createSymbol(flags, leftProp.name);
                    result.type = getUnionType([getTypeOfSymbol(leftProp), getTypeWithFacts(rightType, 131072)]);
                    result.leftSpread = leftProp;
                    result.rightSpread = rightProp;
                    result.declarations = declarations;
                    result.isReadonly = isReadonlySymbol(leftProp) || isReadonlySymbol(rightProp);
                    members[leftProp.name] = result;
                }
            }
            else {
                members[leftProp.name] = leftProp;
            }
        }
        return createAnonymousType(undefined, members, emptyArray, emptyArray, stringIndexInfo, numberIndexInfo);
    }
    function createLiteralType(flags, text) {
        var type = createType(flags);
        type.text = text;
        return type;
    }
    function getFreshTypeOfLiteralType(type) {
        if (type.flags & 96 && !(type.flags & 1048576)) {
            if (!type.freshType) {
                var freshType = createLiteralType(type.flags | 1048576, type.text);
                freshType.regularType = type;
                type.freshType = freshType;
            }
            return type.freshType;
        }
        return type;
    }
    function getRegularTypeOfLiteralType(type) {
        return type.flags & 96 && type.flags & 1048576 ? type.regularType : type;
    }
    function getLiteralTypeForText(flags, text) {
        var map = flags & 32 ? stringLiteralTypes : numericLiteralTypes;
        return map[text] || (map[text] = createLiteralType(flags, text));
    }
    function getTypeFromLiteralTypeNode(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            links.resolvedType = getRegularTypeOfLiteralType(checkExpression(node.literal));
        }
        return links.resolvedType;
    }
    function getTypeFromJSDocVariadicType(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            var type = getTypeFromTypeNode(node.type);
            links.resolvedType = type ? createArrayType(type) : unknownType;
        }
        return links.resolvedType;
    }
    function getTypeFromJSDocTupleType(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            var types = ts.map(node.types, getTypeFromTypeNode);
            links.resolvedType = createTupleType(types);
        }
        return links.resolvedType;
    }
    function getThisType(node) {
        var container = ts.getThisContainer(node, false);
        var parent = container && container.parent;
        if (parent && (ts.isClassLike(parent) || parent.kind === 227)) {
            if (!(ts.getModifierFlags(container) & 32) &&
                (container.kind !== 150 || ts.isNodeDescendantOf(node, container.body))) {
                return getDeclaredTypeOfClassOrInterface(getSymbolOfNode(parent)).thisType;
            }
        }
        error(node, ts.Diagnostics.A_this_type_is_available_only_in_a_non_static_member_of_a_class_or_interface);
        return unknownType;
    }
    function getTypeFromThisTypeNode(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            links.resolvedType = getThisType(node);
        }
        return links.resolvedType;
    }
    function getTypeFromTypeNode(node) {
        switch (node.kind) {
            case 118:
            case 263:
            case 264:
                return anyType;
            case 134:
                return stringType;
            case 132:
                return numberType;
            case 121:
                return booleanType;
            case 135:
                return esSymbolType;
            case 104:
                return voidType;
            case 137:
                return undefinedType;
            case 94:
                return nullType;
            case 129:
                return neverType;
            case 289:
                return nullType;
            case 290:
                return undefinedType;
            case 291:
                return neverType;
            case 167:
            case 98:
                return getTypeFromThisTypeNode(node);
            case 171:
                return getTypeFromLiteralTypeNode(node);
            case 288:
                return getTypeFromLiteralTypeNode(node.literal);
            case 157:
            case 272:
                return getTypeFromTypeReference(node);
            case 156:
                return booleanType;
            case 199:
                return getTypeFromTypeReference(node);
            case 160:
                return getTypeFromTypeQueryNode(node);
            case 162:
            case 265:
                return getTypeFromArrayTypeNode(node);
            case 163:
                return getTypeFromTupleTypeNode(node);
            case 164:
            case 266:
                return getTypeFromUnionTypeNode(node);
            case 165:
                return getTypeFromIntersectionTypeNode(node);
            case 166:
            case 268:
            case 269:
            case 276:
            case 277:
            case 273:
                return getTypeFromTypeNode(node.type);
            case 270:
                return getTypeFromTypeNode(node.literal);
            case 158:
            case 159:
            case 161:
            case 287:
            case 274:
                return getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node);
            case 168:
                return getTypeFromTypeOperatorNode(node);
            case 169:
                return getTypeFromIndexedAccessTypeNode(node);
            case 170:
                return getTypeFromMappedTypeNode(node);
            case 70:
            case 141:
                var symbol = getSymbolAtLocation(node);
                return symbol && getDeclaredTypeOfSymbol(symbol);
            case 267:
                return getTypeFromJSDocTupleType(node);
            case 275:
                return getTypeFromJSDocVariadicType(node);
            default:
                return unknownType;
        }
    }
    function instantiateList(items, mapper, instantiator) {
        if (items && items.length) {
            var result = [];
            for (var _i = 0, items_1 = items; _i < items_1.length; _i++) {
                var v = items_1[_i];
                result.push(instantiator(v, mapper));
            }
            return result;
        }
        return items;
    }
    function instantiateTypes(types, mapper) {
        return instantiateList(types, mapper, instantiateType);
    }
    function instantiateSignatures(signatures, mapper) {
        return instantiateList(signatures, mapper, instantiateSignature);
    }
    function instantiateCached(type, mapper, instantiator) {
        var instantiations = mapper.instantiations || (mapper.instantiations = []);
        return instantiations[type.id] || (instantiations[type.id] = instantiator(type, mapper));
    }
    function createUnaryTypeMapper(source, target) {
        return function (t) { return t === source ? target : t; };
    }
    function createBinaryTypeMapper(source1, target1, source2, target2) {
        return function (t) { return t === source1 ? target1 : t === source2 ? target2 : t; };
    }
    function createArrayTypeMapper(sources, targets) {
        return function (t) {
            for (var i = 0; i < sources.length; i++) {
                if (t === sources[i]) {
                    return targets ? targets[i] : anyType;
                }
            }
            return t;
        };
    }
    function createTypeMapper(sources, targets) {
        var count = sources.length;
        var mapper = count == 1 ? createUnaryTypeMapper(sources[0], targets ? targets[0] : anyType) :
            count == 2 ? createBinaryTypeMapper(sources[0], targets ? targets[0] : anyType, sources[1], targets ? targets[1] : anyType) :
                createArrayTypeMapper(sources, targets);
        mapper.mappedTypes = sources;
        return mapper;
    }
    function createTypeEraser(sources) {
        return createTypeMapper(sources, undefined);
    }
    function getInferenceMapper(context) {
        if (!context.mapper) {
            var mapper = function (t) {
                var typeParameters = context.signature.typeParameters;
                for (var i = 0; i < typeParameters.length; i++) {
                    if (t === typeParameters[i]) {
                        context.inferences[i].isFixed = true;
                        return getInferredType(context, i);
                    }
                }
                return t;
            };
            mapper.mappedTypes = context.signature.typeParameters;
            mapper.context = context;
            context.mapper = mapper;
        }
        return context.mapper;
    }
    function identityMapper(type) {
        return type;
    }
    function combineTypeMappers(mapper1, mapper2) {
        var mapper = function (t) { return instantiateType(mapper1(t), mapper2); };
        mapper.mappedTypes = mapper1.mappedTypes;
        return mapper;
    }
    function cloneTypeParameter(typeParameter) {
        var result = createType(16384);
        result.symbol = typeParameter.symbol;
        result.target = typeParameter;
        return result;
    }
    function cloneTypePredicate(predicate, mapper) {
        if (ts.isIdentifierTypePredicate(predicate)) {
            return {
                kind: 1,
                parameterName: predicate.parameterName,
                parameterIndex: predicate.parameterIndex,
                type: instantiateType(predicate.type, mapper)
            };
        }
        else {
            return {
                kind: 0,
                type: instantiateType(predicate.type, mapper)
            };
        }
    }
    function instantiateSignature(signature, mapper, eraseTypeParameters) {
        var freshTypeParameters;
        var freshTypePredicate;
        if (signature.typeParameters && !eraseTypeParameters) {
            freshTypeParameters = ts.map(signature.typeParameters, cloneTypeParameter);
            mapper = combineTypeMappers(createTypeMapper(signature.typeParameters, freshTypeParameters), mapper);
            for (var _i = 0, freshTypeParameters_1 = freshTypeParameters; _i < freshTypeParameters_1.length; _i++) {
                var tp = freshTypeParameters_1[_i];
                tp.mapper = mapper;
            }
        }
        if (signature.typePredicate) {
            freshTypePredicate = cloneTypePredicate(signature.typePredicate, mapper);
        }
        var result = createSignature(signature.declaration, freshTypeParameters, signature.thisParameter && instantiateSymbol(signature.thisParameter, mapper), instantiateList(signature.parameters, mapper, instantiateSymbol), instantiateType(signature.resolvedReturnType, mapper), freshTypePredicate, signature.minArgumentCount, signature.hasRestParameter, signature.hasLiteralTypes);
        result.target = signature;
        result.mapper = mapper;
        return result;
    }
    function instantiateSymbol(symbol, mapper) {
        if (symbol.flags & 16777216) {
            var links = getSymbolLinks(symbol);
            symbol = links.target;
            mapper = combineTypeMappers(links.mapper, mapper);
        }
        var result = createSymbol(16777216 | 67108864 | symbol.flags, symbol.name);
        result.declarations = symbol.declarations;
        result.parent = symbol.parent;
        result.target = symbol;
        result.mapper = mapper;
        if (symbol.valueDeclaration) {
            result.valueDeclaration = symbol.valueDeclaration;
        }
        return result;
    }
    function instantiateAnonymousType(type, mapper) {
        var result = createObjectType(16 | 64, type.symbol);
        result.target = type.objectFlags & 64 ? type.target : type;
        result.mapper = type.objectFlags & 64 ? combineTypeMappers(type.mapper, mapper) : mapper;
        result.aliasSymbol = type.aliasSymbol;
        result.aliasTypeArguments = instantiateTypes(type.aliasTypeArguments, mapper);
        return result;
    }
    function instantiateMappedType(type, mapper) {
        var constraintType = getConstraintTypeFromMappedType(type);
        if (constraintType.flags & 262144) {
            var typeVariable_1 = constraintType.type;
            var mappedTypeVariable = instantiateType(typeVariable_1, mapper);
            if (typeVariable_1 !== mappedTypeVariable) {
                return mapType(mappedTypeVariable, function (t) {
                    if (isMappableType(t)) {
                        var replacementMapper = createUnaryTypeMapper(typeVariable_1, t);
                        var combinedMapper = mapper.mappedTypes && mapper.mappedTypes.length === 1 ? replacementMapper : combineTypeMappers(replacementMapper, mapper);
                        combinedMapper.mappedTypes = mapper.mappedTypes;
                        return instantiateMappedObjectType(type, combinedMapper);
                    }
                    return t;
                });
            }
        }
        return instantiateMappedObjectType(type, mapper);
    }
    function isMappableType(type) {
        return type.flags & (16384 | 32768 | 131072 | 524288);
    }
    function instantiateMappedObjectType(type, mapper) {
        var result = createObjectType(32 | 64, type.symbol);
        result.declaration = type.declaration;
        result.mapper = type.mapper ? combineTypeMappers(type.mapper, mapper) : mapper;
        result.aliasSymbol = type.aliasSymbol;
        result.aliasTypeArguments = instantiateTypes(type.aliasTypeArguments, mapper);
        return result;
    }
    function isSymbolInScopeOfMappedTypeParameter(symbol, mapper) {
        if (!(symbol.declarations && symbol.declarations.length)) {
            return false;
        }
        var mappedTypes = mapper.mappedTypes;
        var node = symbol.declarations[0];
        while (node) {
            switch (node.kind) {
                case 158:
                case 159:
                case 225:
                case 149:
                case 148:
                case 150:
                case 153:
                case 154:
                case 155:
                case 151:
                case 152:
                case 184:
                case 185:
                case 226:
                case 197:
                case 227:
                case 228:
                    var declaration = node;
                    if (declaration.typeParameters) {
                        for (var _i = 0, _a = declaration.typeParameters; _i < _a.length; _i++) {
                            var d = _a[_i];
                            if (ts.contains(mappedTypes, getDeclaredTypeOfTypeParameter(getSymbolOfNode(d)))) {
                                return true;
                            }
                        }
                    }
                    if (ts.isClassLike(node) || node.kind === 227) {
                        var thisType = getDeclaredTypeOfClassOrInterface(getSymbolOfNode(node)).thisType;
                        if (thisType && ts.contains(mappedTypes, thisType)) {
                            return true;
                        }
                    }
                    break;
                case 274:
                    var func = node;
                    for (var _b = 0, _c = func.parameters; _b < _c.length; _b++) {
                        var p = _c[_b];
                        if (ts.contains(mappedTypes, getTypeOfNode(p))) {
                            return true;
                        }
                    }
                    break;
                case 230:
                case 261:
                    return false;
            }
            node = node.parent;
        }
        return false;
    }
    function isTopLevelTypeAlias(symbol) {
        if (symbol.declarations && symbol.declarations.length) {
            var parentKind = symbol.declarations[0].parent.kind;
            return parentKind === 261 || parentKind === 231;
        }
        return false;
    }
    function instantiateType(type, mapper) {
        if (type && mapper !== identityMapper) {
            if (type.aliasSymbol && isTopLevelTypeAlias(type.aliasSymbol)) {
                if (type.aliasTypeArguments) {
                    return getTypeAliasInstantiation(type.aliasSymbol, instantiateTypes(type.aliasTypeArguments, mapper));
                }
                return type;
            }
            return instantiateTypeNoAlias(type, mapper);
        }
        return type;
    }
    function instantiateTypeNoAlias(type, mapper) {
        if (type.flags & 16384) {
            return mapper(type);
        }
        if (type.flags & 32768) {
            if (type.objectFlags & 16) {
                return type.symbol &&
                    type.symbol.flags & (16 | 8192 | 32 | 2048 | 4096) &&
                    (type.objectFlags & 64 || isSymbolInScopeOfMappedTypeParameter(type.symbol, mapper)) ?
                    instantiateCached(type, mapper, instantiateAnonymousType) : type;
            }
            if (type.objectFlags & 32) {
                return instantiateCached(type, mapper, instantiateMappedType);
            }
            if (type.objectFlags & 4) {
                return createTypeReference(type.target, instantiateTypes(type.typeArguments, mapper));
            }
        }
        if (type.flags & 65536 && !(type.flags & 8190)) {
            return getUnionType(instantiateTypes(type.types, mapper), false, type.aliasSymbol, instantiateTypes(type.aliasTypeArguments, mapper));
        }
        if (type.flags & 131072) {
            return getIntersectionType(instantiateTypes(type.types, mapper), type.aliasSymbol, instantiateTypes(type.aliasTypeArguments, mapper));
        }
        if (type.flags & 262144) {
            return getIndexType(instantiateType(type.type, mapper));
        }
        if (type.flags & 524288) {
            return getIndexedAccessType(instantiateType(type.objectType, mapper), instantiateType(type.indexType, mapper));
        }
        return type;
    }
    function instantiateIndexInfo(info, mapper) {
        return info && createIndexInfo(instantiateType(info.type, mapper), info.isReadonly, info.declaration);
    }
    function isContextSensitive(node) {
        ts.Debug.assert(node.kind !== 149 || ts.isObjectLiteralMethod(node));
        switch (node.kind) {
            case 184:
            case 185:
                return isContextSensitiveFunctionLikeDeclaration(node);
            case 176:
                return ts.forEach(node.properties, isContextSensitive);
            case 175:
                return ts.forEach(node.elements, isContextSensitive);
            case 193:
                return isContextSensitive(node.whenTrue) ||
                    isContextSensitive(node.whenFalse);
            case 192:
                return node.operatorToken.kind === 53 &&
                    (isContextSensitive(node.left) || isContextSensitive(node.right));
            case 257:
                return isContextSensitive(node.initializer);
            case 149:
            case 148:
                return isContextSensitiveFunctionLikeDeclaration(node);
            case 183:
                return isContextSensitive(node.expression);
        }
        return false;
    }
    function isContextSensitiveFunctionLikeDeclaration(node) {
        if (node.typeParameters) {
            return false;
        }
        if (ts.forEach(node.parameters, function (p) { return !p.type; })) {
            return true;
        }
        if (node.kind === 185) {
            return false;
        }
        var parameter = ts.firstOrUndefined(node.parameters);
        return !(parameter && ts.parameterIsThisKeyword(parameter));
    }
    function isContextSensitiveFunctionOrObjectLiteralMethod(func) {
        return (isFunctionExpressionOrArrowFunction(func) || ts.isObjectLiteralMethod(func)) && isContextSensitiveFunctionLikeDeclaration(func);
    }
    function getTypeWithoutSignatures(type) {
        if (type.flags & 32768) {
            var resolved = resolveStructuredTypeMembers(type);
            if (resolved.constructSignatures.length) {
                var result = createObjectType(16, type.symbol);
                result.members = resolved.members;
                result.properties = resolved.properties;
                result.callSignatures = emptyArray;
                result.constructSignatures = emptyArray;
                type = result;
            }
        }
        return type;
    }
    function isTypeIdenticalTo(source, target) {
        return isTypeRelatedTo(source, target, identityRelation);
    }
    function compareTypesIdentical(source, target) {
        return isTypeRelatedTo(source, target, identityRelation) ? -1 : 0;
    }
    function compareTypesAssignable(source, target) {
        return isTypeRelatedTo(source, target, assignableRelation) ? -1 : 0;
    }
    function isTypeSubtypeOf(source, target) {
        return isTypeRelatedTo(source, target, subtypeRelation);
    }
    function isTypeAssignableTo(source, target) {
        return isTypeRelatedTo(source, target, assignableRelation);
    }
    function isTypeInstanceOf(source, target) {
        return source === target || isTypeSubtypeOf(source, target) && !isTypeIdenticalTo(source, target);
    }
    function isTypeComparableTo(source, target) {
        return isTypeRelatedTo(source, target, comparableRelation);
    }
    function areTypesComparable(type1, type2) {
        return isTypeComparableTo(type1, type2) || isTypeComparableTo(type2, type1);
    }
    function checkTypeSubtypeOf(source, target, errorNode, headMessage, containingMessageChain) {
        return checkTypeRelatedTo(source, target, subtypeRelation, errorNode, headMessage, containingMessageChain);
    }
    function checkTypeAssignableTo(source, target, errorNode, headMessage, containingMessageChain) {
        return checkTypeRelatedTo(source, target, assignableRelation, errorNode, headMessage, containingMessageChain);
    }
    function checkTypeComparableTo(source, target, errorNode, headMessage, containingMessageChain) {
        return checkTypeRelatedTo(source, target, comparableRelation, errorNode, headMessage, containingMessageChain);
    }
    function isSignatureAssignableTo(source, target, ignoreReturnTypes) {
        return compareSignaturesRelated(source, target, ignoreReturnTypes, false, undefined, compareTypesAssignable) !== 0;
    }
    function compareSignaturesRelated(source, target, ignoreReturnTypes, reportErrors, errorReporter, compareTypes) {
        if (source === target) {
            return -1;
        }
        if (!target.hasRestParameter && source.minArgumentCount > target.parameters.length) {
            return 0;
        }
        source = getErasedSignature(source);
        target = getErasedSignature(target);
        var result = -1;
        var sourceThisType = getThisTypeOfSignature(source);
        if (sourceThisType && sourceThisType !== voidType) {
            var targetThisType = getThisTypeOfSignature(target);
            if (targetThisType) {
                var related = compareTypes(sourceThisType, targetThisType, false)
                    || compareTypes(targetThisType, sourceThisType, reportErrors);
                if (!related) {
                    if (reportErrors) {
                        errorReporter(ts.Diagnostics.The_this_types_of_each_signature_are_incompatible);
                    }
                    return 0;
                }
                result &= related;
            }
        }
        var sourceMax = getNumNonRestParameters(source);
        var targetMax = getNumNonRestParameters(target);
        var checkCount = getNumParametersToCheckForSignatureRelatability(source, sourceMax, target, targetMax);
        var sourceParams = source.parameters;
        var targetParams = target.parameters;
        for (var i = 0; i < checkCount; i++) {
            var s = i < sourceMax ? getTypeOfParameter(sourceParams[i]) : getRestTypeOfSignature(source);
            var t = i < targetMax ? getTypeOfParameter(targetParams[i]) : getRestTypeOfSignature(target);
            var related = compareTypes(s, t, false) || compareTypes(t, s, reportErrors);
            if (!related) {
                if (reportErrors) {
                    errorReporter(ts.Diagnostics.Types_of_parameters_0_and_1_are_incompatible, sourceParams[i < sourceMax ? i : sourceMax].name, targetParams[i < targetMax ? i : targetMax].name);
                }
                return 0;
            }
            result &= related;
        }
        if (!ignoreReturnTypes) {
            var targetReturnType = getReturnTypeOfSignature(target);
            if (targetReturnType === voidType) {
                return result;
            }
            var sourceReturnType = getReturnTypeOfSignature(source);
            if (target.typePredicate) {
                if (source.typePredicate) {
                    result &= compareTypePredicateRelatedTo(source.typePredicate, target.typePredicate, reportErrors, errorReporter, compareTypes);
                }
                else if (ts.isIdentifierTypePredicate(target.typePredicate)) {
                    if (reportErrors) {
                        errorReporter(ts.Diagnostics.Signature_0_must_have_a_type_predicate, signatureToString(source));
                    }
                    return 0;
                }
            }
            else {
                result &= compareTypes(sourceReturnType, targetReturnType, reportErrors);
            }
        }
        return result;
    }
    function compareTypePredicateRelatedTo(source, target, reportErrors, errorReporter, compareTypes) {
        if (source.kind !== target.kind) {
            if (reportErrors) {
                errorReporter(ts.Diagnostics.A_this_based_type_guard_is_not_compatible_with_a_parameter_based_type_guard);
                errorReporter(ts.Diagnostics.Type_predicate_0_is_not_assignable_to_1, typePredicateToString(source), typePredicateToString(target));
            }
            return 0;
        }
        if (source.kind === 1) {
            var sourceIdentifierPredicate = source;
            var targetIdentifierPredicate = target;
            if (sourceIdentifierPredicate.parameterIndex !== targetIdentifierPredicate.parameterIndex) {
                if (reportErrors) {
                    errorReporter(ts.Diagnostics.Parameter_0_is_not_in_the_same_position_as_parameter_1, sourceIdentifierPredicate.parameterName, targetIdentifierPredicate.parameterName);
                    errorReporter(ts.Diagnostics.Type_predicate_0_is_not_assignable_to_1, typePredicateToString(source), typePredicateToString(target));
                }
                return 0;
            }
        }
        var related = compareTypes(source.type, target.type, reportErrors);
        if (related === 0 && reportErrors) {
            errorReporter(ts.Diagnostics.Type_predicate_0_is_not_assignable_to_1, typePredicateToString(source), typePredicateToString(target));
        }
        return related;
    }
    function isImplementationCompatibleWithOverload(implementation, overload) {
        var erasedSource = getErasedSignature(implementation);
        var erasedTarget = getErasedSignature(overload);
        var sourceReturnType = getReturnTypeOfSignature(erasedSource);
        var targetReturnType = getReturnTypeOfSignature(erasedTarget);
        if (targetReturnType === voidType
            || isTypeRelatedTo(targetReturnType, sourceReturnType, assignableRelation)
            || isTypeRelatedTo(sourceReturnType, targetReturnType, assignableRelation)) {
            return isSignatureAssignableTo(erasedSource, erasedTarget, true);
        }
        return false;
    }
    function getNumNonRestParameters(signature) {
        var numParams = signature.parameters.length;
        return signature.hasRestParameter ?
            numParams - 1 :
            numParams;
    }
    function getNumParametersToCheckForSignatureRelatability(source, sourceNonRestParamCount, target, targetNonRestParamCount) {
        if (source.hasRestParameter === target.hasRestParameter) {
            if (source.hasRestParameter) {
                return Math.max(sourceNonRestParamCount, targetNonRestParamCount) + 1;
            }
            else {
                return Math.min(sourceNonRestParamCount, targetNonRestParamCount);
            }
        }
        else {
            return source.hasRestParameter ?
                targetNonRestParamCount :
                sourceNonRestParamCount;
        }
    }
    function isEnumTypeRelatedTo(source, target, errorReporter) {
        if (source === target) {
            return true;
        }
        var id = source.id + "," + target.id;
        if (enumRelation[id] !== undefined) {
            return enumRelation[id];
        }
        if (source.symbol.name !== target.symbol.name ||
            !(source.symbol.flags & 256) || !(target.symbol.flags & 256) ||
            (source.flags & 65536) !== (target.flags & 65536)) {
            return enumRelation[id] = false;
        }
        var targetEnumType = getTypeOfSymbol(target.symbol);
        for (var _i = 0, _a = getPropertiesOfType(getTypeOfSymbol(source.symbol)); _i < _a.length; _i++) {
            var property = _a[_i];
            if (property.flags & 8) {
                var targetProperty = getPropertyOfType(targetEnumType, property.name);
                if (!targetProperty || !(targetProperty.flags & 8)) {
                    if (errorReporter) {
                        errorReporter(ts.Diagnostics.Property_0_is_missing_in_type_1, property.name, typeToString(target, undefined, 128));
                    }
                    return enumRelation[id] = false;
                }
            }
        }
        return enumRelation[id] = true;
    }
    function isSimpleTypeRelatedTo(source, target, relation, errorReporter) {
        if (target.flags & 8192)
            return false;
        if (target.flags & 1 || source.flags & 8192)
            return true;
        if (source.flags & 262178 && target.flags & 2)
            return true;
        if (source.flags & 340 && target.flags & 4)
            return true;
        if (source.flags & 136 && target.flags & 8)
            return true;
        if (source.flags & 256 && target.flags & 16 && source.baseType === target)
            return true;
        if (source.flags & 16 && target.flags & 16 && isEnumTypeRelatedTo(source, target, errorReporter))
            return true;
        if (source.flags & 2048 && (!strictNullChecks || target.flags & (2048 | 1024)))
            return true;
        if (source.flags & 4096 && (!strictNullChecks || target.flags & 4096))
            return true;
        if (relation === assignableRelation || relation === comparableRelation) {
            if (source.flags & 1)
                return true;
            if ((source.flags & 4 | source.flags & 64) && target.flags & 272)
                return true;
            if (source.flags & 256 &&
                target.flags & 256 &&
                source.text === target.text &&
                isEnumTypeRelatedTo(source.baseType, target.baseType, errorReporter)) {
                return true;
            }
            if (source.flags & 256 &&
                target.flags & 16 &&
                isEnumTypeRelatedTo(target, source.baseType, errorReporter)) {
                return true;
            }
        }
        return false;
    }
    function isTypeRelatedTo(source, target, relation) {
        if (source.flags & 96 && source.flags & 1048576) {
            source = source.regularType;
        }
        if (target.flags & 96 && target.flags & 1048576) {
            target = target.regularType;
        }
        if (source === target || relation !== identityRelation && isSimpleTypeRelatedTo(source, target, relation)) {
            return true;
        }
        if (source.flags & 32768 && target.flags & 32768) {
            var id = relation !== identityRelation || source.id < target.id ? source.id + "," + target.id : target.id + "," + source.id;
            var related = relation[id];
            if (related !== undefined) {
                return related === 1;
            }
        }
        if (source.flags & 507904 || target.flags & 507904) {
            return checkTypeRelatedTo(source, target, relation, undefined, undefined, undefined);
        }
        return false;
    }
    function checkTypeRelatedTo(source, target, relation, errorNode, headMessage, containingMessageChain) {
        var errorInfo;
        var sourceStack;
        var targetStack;
        var maybeStack;
        var expandingFlags;
        var depth = 0;
        var overflow = false;
        ts.Debug.assert(relation !== identityRelation || !errorNode, "no error reporting in identity checking");
        var result = isRelatedTo(source, target, !!errorNode, headMessage);
        if (overflow) {
            error(errorNode, ts.Diagnostics.Excessive_stack_depth_comparing_types_0_and_1, typeToString(source), typeToString(target));
        }
        else if (errorInfo) {
            if (containingMessageChain) {
                errorInfo = ts.concatenateDiagnosticMessageChains(containingMessageChain, errorInfo);
            }
            diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(errorNode, errorInfo));
        }
        return result !== 0;
        function reportError(message, arg0, arg1, arg2) {
            ts.Debug.assert(!!errorNode);
            errorInfo = ts.chainDiagnosticMessages(errorInfo, message, arg0, arg1, arg2);
        }
        function reportRelationError(message, source, target) {
            var sourceType = typeToString(source);
            var targetType = typeToString(target);
            if (sourceType === targetType) {
                sourceType = typeToString(source, undefined, 128);
                targetType = typeToString(target, undefined, 128);
            }
            if (!message) {
                if (relation === comparableRelation) {
                    message = ts.Diagnostics.Type_0_is_not_comparable_to_type_1;
                }
                else if (sourceType === targetType) {
                    message = ts.Diagnostics.Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated;
                }
                else {
                    message = ts.Diagnostics.Type_0_is_not_assignable_to_type_1;
                }
            }
            reportError(message, sourceType, targetType);
        }
        function tryElaborateErrorsForPrimitivesAndObjects(source, target) {
            var sourceType = typeToString(source);
            var targetType = typeToString(target);
            if ((globalStringType === source && stringType === target) ||
                (globalNumberType === source && numberType === target) ||
                (globalBooleanType === source && booleanType === target) ||
                (getGlobalESSymbolType() === source && esSymbolType === target)) {
                reportError(ts.Diagnostics._0_is_a_primitive_but_1_is_a_wrapper_object_Prefer_using_0_when_possible, targetType, sourceType);
            }
        }
        function isUnionOrIntersectionTypeWithoutNullableConstituents(type) {
            if (!(type.flags & 196608)) {
                return false;
            }
            var seenNonNullable = false;
            for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
                var t = _a[_i];
                if (t.flags & 6144) {
                    continue;
                }
                if (seenNonNullable) {
                    return true;
                }
                seenNonNullable = true;
            }
            return false;
        }
        function isRelatedTo(source, target, reportErrors, headMessage) {
            var result;
            if (source.flags & 96 && source.flags & 1048576) {
                source = source.regularType;
            }
            if (target.flags & 96 && target.flags & 1048576) {
                target = target.regularType;
            }
            if (source === target)
                return -1;
            if (relation === identityRelation) {
                return isIdenticalTo(source, target);
            }
            if (isSimpleTypeRelatedTo(source, target, relation, reportErrors ? reportError : undefined))
                return -1;
            if (getObjectFlags(source) & 128 && source.flags & 1048576) {
                if (hasExcessProperties(source, target, reportErrors)) {
                    if (reportErrors) {
                        reportRelationError(headMessage, source, target);
                    }
                    return 0;
                }
                if (isUnionOrIntersectionTypeWithoutNullableConstituents(target)) {
                    source = getRegularTypeOfObjectLiteral(source);
                }
            }
            var saveErrorInfo = errorInfo;
            if (source.flags & 65536) {
                if (relation === comparableRelation) {
                    result = someTypeRelatedToType(source, target, reportErrors && !(source.flags & 8190));
                }
                else {
                    result = eachTypeRelatedToType(source, target, reportErrors && !(source.flags & 8190));
                }
                if (result) {
                    return result;
                }
            }
            else if (target.flags & 65536) {
                if (result = typeRelatedToSomeType(source, target, reportErrors && !(source.flags & 8190) && !(target.flags & 8190))) {
                    return result;
                }
            }
            else if (target.flags & 131072) {
                if (result = typeRelatedToEachType(source, target, reportErrors)) {
                    return result;
                }
            }
            else if (source.flags & 131072) {
                if (result = someTypeRelatedToType(source, target, false)) {
                    return result;
                }
            }
            else if (target.flags & 16384) {
                if (getObjectFlags(source) & 32 && getConstraintTypeFromMappedType(source) === getIndexType(target)) {
                    if (!source.declaration.questionToken) {
                        var templateType = getTemplateTypeFromMappedType(source);
                        var indexedAccessType = getIndexedAccessType(target, getTypeParameterFromMappedType(source));
                        if (result = isRelatedTo(templateType, indexedAccessType, reportErrors)) {
                            return result;
                        }
                    }
                }
                else {
                    var constraint = getConstraintOfTypeParameter(target);
                    if (constraint && constraint.flags & 262144) {
                        if (result = isRelatedTo(source, constraint, reportErrors)) {
                            return result;
                        }
                    }
                }
            }
            else if (target.flags & 262144) {
                if (source.flags & 262144) {
                    if (result = isRelatedTo(target.type, source.type, false)) {
                        return result;
                    }
                }
                if (target.type.flags & 540672) {
                    var constraint = getConstraintOfTypeVariable(target.type);
                    if (constraint) {
                        if (result = isRelatedTo(source, getIndexType(constraint), reportErrors)) {
                            return result;
                        }
                    }
                }
            }
            else if (target.flags & 524288) {
                if (source.flags & 524288 && source.indexType === target.indexType) {
                    if (result = isRelatedTo(source.objectType, target.objectType, reportErrors)) {
                        return result;
                    }
                }
                if (target.constraint) {
                    if (result = isRelatedTo(source, target.constraint, reportErrors)) {
                        errorInfo = saveErrorInfo;
                        return result;
                    }
                }
            }
            if (source.flags & 16384) {
                if (getObjectFlags(target) & 32 && getConstraintTypeFromMappedType(target) === getIndexType(source)) {
                    var indexedAccessType = getIndexedAccessType(source, getTypeParameterFromMappedType(target));
                    var templateType = getTemplateTypeFromMappedType(target);
                    if (result = isRelatedTo(indexedAccessType, templateType, reportErrors)) {
                        errorInfo = saveErrorInfo;
                        return result;
                    }
                }
                else {
                    var constraint = getConstraintOfTypeParameter(source);
                    if (!constraint || constraint.flags & 1) {
                        constraint = emptyObjectType;
                    }
                    constraint = getTypeWithThisArgument(constraint, source);
                    var reportConstraintErrors = reportErrors && constraint !== emptyObjectType;
                    if (result = isRelatedTo(constraint, target, reportConstraintErrors)) {
                        errorInfo = saveErrorInfo;
                        return result;
                    }
                }
            }
            else if (source.flags & 524288) {
                if (source.constraint) {
                    if (result = isRelatedTo(source.constraint, target, reportErrors)) {
                        errorInfo = saveErrorInfo;
                        return result;
                    }
                }
            }
            else {
                if (getObjectFlags(source) & 4 && getObjectFlags(target) & 4 && source.target === target.target) {
                    if (result = typeArgumentsRelatedTo(source, target, reportErrors)) {
                        return result;
                    }
                }
                var apparentSource = getApparentType(source);
                if (apparentSource.flags & (32768 | 131072) && target.flags & 32768) {
                    var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo && !(source.flags & 8190);
                    if (result = objectTypeRelatedTo(apparentSource, source, target, reportStructuralErrors)) {
                        errorInfo = saveErrorInfo;
                        return result;
                    }
                }
            }
            if (reportErrors) {
                if (source.flags & 32768 && target.flags & 8190) {
                    tryElaborateErrorsForPrimitivesAndObjects(source, target);
                }
                else if (source.symbol && source.flags & 32768 && globalObjectType === source) {
                    reportError(ts.Diagnostics.The_Object_type_is_assignable_to_very_few_other_types_Did_you_mean_to_use_the_any_type_instead);
                }
                reportRelationError(headMessage, source, target);
            }
            return 0;
        }
        function isIdenticalTo(source, target) {
            var result;
            if (source.flags & 32768 && target.flags & 32768) {
                if (getObjectFlags(source) & 4 && getObjectFlags(target) & 4 && source.target === target.target) {
                    if (result = typeArgumentsRelatedTo(source, target, false)) {
                        return result;
                    }
                }
                return objectTypeRelatedTo(source, source, target, false);
            }
            if (source.flags & 65536 && target.flags & 65536 ||
                source.flags & 131072 && target.flags & 131072) {
                if (result = eachTypeRelatedToSomeType(source, target)) {
                    if (result &= eachTypeRelatedToSomeType(target, source)) {
                        return result;
                    }
                }
            }
            return 0;
        }
        function isKnownProperty(type, name) {
            if (type.flags & 32768) {
                var resolved = resolveStructuredTypeMembers(type);
                if ((relation === assignableRelation || relation === comparableRelation) && (type === globalObjectType || isEmptyObjectType(resolved)) ||
                    resolved.stringIndexInfo ||
                    (resolved.numberIndexInfo && isNumericLiteralName(name)) ||
                    getPropertyOfType(type, name)) {
                    return true;
                }
            }
            else if (type.flags & 196608) {
                for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
                    var t = _a[_i];
                    if (isKnownProperty(t, name)) {
                        return true;
                    }
                }
            }
            return false;
        }
        function isEmptyObjectType(t) {
            return t.properties.length === 0 &&
                t.callSignatures.length === 0 &&
                t.constructSignatures.length === 0 &&
                !t.stringIndexInfo &&
                !t.numberIndexInfo;
        }
        function hasExcessProperties(source, target, reportErrors) {
            if (maybeTypeOfKind(target, 32768) && !(getObjectFlags(target) & 512)) {
                for (var _i = 0, _a = getPropertiesOfObjectType(source); _i < _a.length; _i++) {
                    var prop = _a[_i];
                    if (!isKnownProperty(target, prop.name)) {
                        if (reportErrors) {
                            ts.Debug.assert(!!errorNode);
                            errorNode = prop.valueDeclaration;
                            reportError(ts.Diagnostics.Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1, symbolToString(prop), typeToString(target));
                        }
                        return true;
                    }
                }
            }
            return false;
        }
        function eachTypeRelatedToSomeType(source, target) {
            var result = -1;
            var sourceTypes = source.types;
            for (var _i = 0, sourceTypes_1 = sourceTypes; _i < sourceTypes_1.length; _i++) {
                var sourceType = sourceTypes_1[_i];
                var related = typeRelatedToSomeType(sourceType, target, false);
                if (!related) {
                    return 0;
                }
                result &= related;
            }
            return result;
        }
        function typeRelatedToSomeType(source, target, reportErrors) {
            var targetTypes = target.types;
            if (target.flags & 65536 && containsType(targetTypes, source)) {
                return -1;
            }
            var len = targetTypes.length;
            for (var i = 0; i < len; i++) {
                var related = isRelatedTo(source, targetTypes[i], reportErrors && i === len - 1);
                if (related) {
                    return related;
                }
            }
            return 0;
        }
        function typeRelatedToEachType(source, target, reportErrors) {
            var result = -1;
            var targetTypes = target.types;
            for (var _i = 0, targetTypes_1 = targetTypes; _i < targetTypes_1.length; _i++) {
                var targetType = targetTypes_1[_i];
                var related = isRelatedTo(source, targetType, reportErrors);
                if (!related) {
                    return 0;
                }
                result &= related;
            }
            return result;
        }
        function someTypeRelatedToType(source, target, reportErrors) {
            var sourceTypes = source.types;
            if (source.flags & 65536 && containsType(sourceTypes, target)) {
                return -1;
            }
            var len = sourceTypes.length;
            for (var i = 0; i < len; i++) {
                var related = isRelatedTo(sourceTypes[i], target, reportErrors && i === len - 1);
                if (related) {
                    return related;
                }
            }
            return 0;
        }
        function eachTypeRelatedToType(source, target, reportErrors) {
            var result = -1;
            var sourceTypes = source.types;
            for (var _i = 0, sourceTypes_2 = sourceTypes; _i < sourceTypes_2.length; _i++) {
                var sourceType = sourceTypes_2[_i];
                var related = isRelatedTo(sourceType, target, reportErrors);
                if (!related) {
                    return 0;
                }
                result &= related;
            }
            return result;
        }
        function typeArgumentsRelatedTo(source, target, reportErrors) {
            var sources = source.typeArguments || emptyArray;
            var targets = target.typeArguments || emptyArray;
            if (sources.length !== targets.length && relation === identityRelation) {
                return 0;
            }
            var length = sources.length <= targets.length ? sources.length : targets.length;
            var result = -1;
            for (var i = 0; i < length; i++) {
                var related = isRelatedTo(sources[i], targets[i], reportErrors);
                if (!related) {
                    return 0;
                }
                result &= related;
            }
            return result;
        }
        function objectTypeRelatedTo(source, originalSource, target, reportErrors) {
            if (overflow) {
                return 0;
            }
            var id = relation !== identityRelation || source.id < target.id ? source.id + "," + target.id : target.id + "," + source.id;
            var related = relation[id];
            if (related !== undefined) {
                if (reportErrors && related === 2) {
                    relation[id] = 3;
                }
                else {
                    return related === 1 ? -1 : 0;
                }
            }
            if (depth > 0) {
                for (var i = 0; i < depth; i++) {
                    if (maybeStack[i][id]) {
                        return 1;
                    }
                }
                if (depth === 100) {
                    overflow = true;
                    return 0;
                }
            }
            else {
                sourceStack = [];
                targetStack = [];
                maybeStack = [];
                expandingFlags = 0;
            }
            sourceStack[depth] = source;
            targetStack[depth] = target;
            maybeStack[depth] = ts.createMap();
            maybeStack[depth][id] = 1;
            depth++;
            var saveExpandingFlags = expandingFlags;
            if (!(expandingFlags & 1) && isDeeplyNestedGeneric(source, sourceStack, depth))
                expandingFlags |= 1;
            if (!(expandingFlags & 2) && isDeeplyNestedGeneric(target, targetStack, depth))
                expandingFlags |= 2;
            var result;
            if (expandingFlags === 3) {
                result = 1;
            }
            else if (isGenericMappedType(source) || isGenericMappedType(target)) {
                result = mappedTypeRelatedTo(source, target, reportErrors);
            }
            else {
                result = propertiesRelatedTo(source, target, reportErrors);
                if (result) {
                    result &= signaturesRelatedTo(source, target, 0, reportErrors);
                    if (result) {
                        result &= signaturesRelatedTo(source, target, 1, reportErrors);
                        if (result) {
                            result &= indexTypesRelatedTo(source, originalSource, target, 0, reportErrors);
                            if (result) {
                                result &= indexTypesRelatedTo(source, originalSource, target, 1, reportErrors);
                            }
                        }
                    }
                }
            }
            expandingFlags = saveExpandingFlags;
            depth--;
            if (result) {
                var maybeCache = maybeStack[depth];
                var destinationCache = (result === -1 || depth === 0) ? relation : maybeStack[depth - 1];
                ts.copyProperties(maybeCache, destinationCache);
            }
            else {
                relation[id] = reportErrors ? 3 : 2;
            }
            return result;
        }
        function mappedTypeRelatedTo(source, target, reportErrors) {
            if (isGenericMappedType(target)) {
                if (isGenericMappedType(source)) {
                    var result_2;
                    if (relation === identityRelation) {
                        var readonlyMatches = !source.declaration.readonlyToken === !target.declaration.readonlyToken;
                        var optionalMatches = !source.declaration.questionToken === !target.declaration.questionToken;
                        if (readonlyMatches && optionalMatches) {
                            if (result_2 = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) {
                                return result_2 & isRelatedTo(getErasedTemplateTypeFromMappedType(source), getErasedTemplateTypeFromMappedType(target), reportErrors);
                            }
                        }
                    }
                    else {
                        if (relation === comparableRelation || !source.declaration.questionToken || target.declaration.questionToken) {
                            if (result_2 = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) {
                                return result_2 & isRelatedTo(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target), reportErrors);
                            }
                        }
                    }
                }
            }
            else if (relation !== identityRelation) {
                var resolved = resolveStructuredTypeMembers(target);
                if (isEmptyObjectType(resolved) || resolved.stringIndexInfo && resolved.stringIndexInfo.type.flags & 1) {
                    return -1;
                }
            }
            return 0;
        }
        function propertiesRelatedTo(source, target, reportErrors) {
            if (relation === identityRelation) {
                return propertiesIdenticalTo(source, target);
            }
            var result = -1;
            var properties = getPropertiesOfObjectType(target);
            var requireOptionalProperties = relation === subtypeRelation && !(getObjectFlags(source) & 128);
            for (var _i = 0, properties_3 = properties; _i < properties_3.length; _i++) {
                var targetProp = properties_3[_i];
                var sourceProp = getPropertyOfType(source, targetProp.name);
                if (sourceProp !== targetProp) {
                    if (!sourceProp) {
                        if (!(targetProp.flags & 536870912) || requireOptionalProperties) {
                            if (reportErrors) {
                                reportError(ts.Diagnostics.Property_0_is_missing_in_type_1, symbolToString(targetProp), typeToString(source));
                            }
                            return 0;
                        }
                    }
                    else if (!(targetProp.flags & 134217728)) {
                        var sourcePropFlags = getDeclarationModifierFlagsFromSymbol(sourceProp);
                        var targetPropFlags = getDeclarationModifierFlagsFromSymbol(targetProp);
                        if (sourcePropFlags & 8 || targetPropFlags & 8) {
                            if (sourceProp.valueDeclaration !== targetProp.valueDeclaration) {
                                if (reportErrors) {
                                    if (sourcePropFlags & 8 && targetPropFlags & 8) {
                                        reportError(ts.Diagnostics.Types_have_separate_declarations_of_a_private_property_0, symbolToString(targetProp));
                                    }
                                    else {
                                        reportError(ts.Diagnostics.Property_0_is_private_in_type_1_but_not_in_type_2, symbolToString(targetProp), typeToString(sourcePropFlags & 8 ? source : target), typeToString(sourcePropFlags & 8 ? target : source));
                                    }
                                }
                                return 0;
                            }
                        }
                        else if (targetPropFlags & 16) {
                            var sourceDeclaredInClass = sourceProp.parent && sourceProp.parent.flags & 32;
                            var sourceClass = sourceDeclaredInClass ? getDeclaredTypeOfSymbol(getParentOfSymbol(sourceProp)) : undefined;
                            var targetClass = getDeclaredTypeOfSymbol(getParentOfSymbol(targetProp));
                            if (!sourceClass || !hasBaseType(sourceClass, targetClass)) {
                                if (reportErrors) {
                                    reportError(ts.Diagnostics.Property_0_is_protected_but_type_1_is_not_a_class_derived_from_2, symbolToString(targetProp), typeToString(sourceClass || source), typeToString(targetClass));
                                }
                                return 0;
                            }
                        }
                        else if (sourcePropFlags & 16) {
                            if (reportErrors) {
                                reportError(ts.Diagnostics.Property_0_is_protected_in_type_1_but_public_in_type_2, symbolToString(targetProp), typeToString(source), typeToString(target));
                            }
                            return 0;
                        }
                        var related = isRelatedTo(getTypeOfSymbol(sourceProp), getTypeOfSymbol(targetProp), reportErrors);
                        if (!related) {
                            if (reportErrors) {
                                reportError(ts.Diagnostics.Types_of_property_0_are_incompatible, symbolToString(targetProp));
                            }
                            return 0;
                        }
                        result &= related;
                        if (relation !== comparableRelation && sourceProp.flags & 536870912 && !(targetProp.flags & 536870912)) {
                            if (reportErrors) {
                                reportError(ts.Diagnostics.Property_0_is_optional_in_type_1_but_required_in_type_2, symbolToString(targetProp), typeToString(source), typeToString(target));
                            }
                            return 0;
                        }
                    }
                }
            }
            return result;
        }
        function propertiesIdenticalTo(source, target) {
            if (!(source.flags & 32768 && target.flags & 32768)) {
                return 0;
            }
            var sourceProperties = getPropertiesOfObjectType(source);
            var targetProperties = getPropertiesOfObjectType(target);
            if (sourceProperties.length !== targetProperties.length) {
                return 0;
            }
            var result = -1;
            for (var _i = 0, sourceProperties_1 = sourceProperties; _i < sourceProperties_1.length; _i++) {
                var sourceProp = sourceProperties_1[_i];
                var targetProp = getPropertyOfObjectType(target, sourceProp.name);
                if (!targetProp) {
                    return 0;
                }
                var related = compareProperties(sourceProp, targetProp, isRelatedTo);
                if (!related) {
                    return 0;
                }
                result &= related;
            }
            return result;
        }
        function signaturesRelatedTo(source, target, kind, reportErrors) {
            if (relation === identityRelation) {
                return signaturesIdenticalTo(source, target, kind);
            }
            if (target === anyFunctionType || source === anyFunctionType) {
                return -1;
            }
            var sourceSignatures = getSignaturesOfType(source, kind);
            var targetSignatures = getSignaturesOfType(target, kind);
            if (kind === 1 && sourceSignatures.length && targetSignatures.length) {
                if (isAbstractConstructorType(source) && !isAbstractConstructorType(target)) {
                    if (reportErrors) {
                        reportError(ts.Diagnostics.Cannot_assign_an_abstract_constructor_type_to_a_non_abstract_constructor_type);
                    }
                    return 0;
                }
                if (!constructorVisibilitiesAreCompatible(sourceSignatures[0], targetSignatures[0], reportErrors)) {
                    return 0;
                }
            }
            var result = -1;
            var saveErrorInfo = errorInfo;
            outer: for (var _i = 0, targetSignatures_1 = targetSignatures; _i < targetSignatures_1.length; _i++) {
                var t = targetSignatures_1[_i];
                var shouldElaborateErrors = reportErrors;
                for (var _a = 0, sourceSignatures_1 = sourceSignatures; _a < sourceSignatures_1.length; _a++) {
                    var s = sourceSignatures_1[_a];
                    var related = signatureRelatedTo(s, t, shouldElaborateErrors);
                    if (related) {
                        result &= related;
                        errorInfo = saveErrorInfo;
                        continue outer;
                    }
                    shouldElaborateErrors = false;
                }
                if (shouldElaborateErrors) {
                    reportError(ts.Diagnostics.Type_0_provides_no_match_for_the_signature_1, typeToString(source), signatureToString(t, undefined, undefined, kind));
                }
                return 0;
            }
            return result;
        }
        function signatureRelatedTo(source, target, reportErrors) {
            return compareSignaturesRelated(source, target, false, reportErrors, reportError, isRelatedTo);
        }
        function signaturesIdenticalTo(source, target, kind) {
            var sourceSignatures = getSignaturesOfType(source, kind);
            var targetSignatures = getSignaturesOfType(target, kind);
            if (sourceSignatures.length !== targetSignatures.length) {
                return 0;
            }
            var result = -1;
            for (var i = 0, len = sourceSignatures.length; i < len; i++) {
                var related = compareSignaturesIdentical(sourceSignatures[i], targetSignatures[i], false, false, false, isRelatedTo);
                if (!related) {
                    return 0;
                }
                result &= related;
            }
            return result;
        }
        function eachPropertyRelatedTo(source, target, kind, reportErrors) {
            var result = -1;
            for (var _i = 0, _a = getPropertiesOfObjectType(source); _i < _a.length; _i++) {
                var prop = _a[_i];
                if (kind === 0 || isNumericLiteralName(prop.name)) {
                    var related = isRelatedTo(getTypeOfSymbol(prop), target, reportErrors);
                    if (!related) {
                        if (reportErrors) {
                            reportError(ts.Diagnostics.Property_0_is_incompatible_with_index_signature, symbolToString(prop));
                        }
                        return 0;
                    }
                    result &= related;
                }
            }
            return result;
        }
        function indexInfoRelatedTo(sourceInfo, targetInfo, reportErrors) {
            var related = isRelatedTo(sourceInfo.type, targetInfo.type, reportErrors);
            if (!related && reportErrors) {
                reportError(ts.Diagnostics.Index_signatures_are_incompatible);
            }
            return related;
        }
        function indexTypesRelatedTo(source, originalSource, target, kind, reportErrors) {
            if (relation === identityRelation) {
                return indexTypesIdenticalTo(source, target, kind);
            }
            var targetInfo = getIndexInfoOfType(target, kind);
            if (!targetInfo || ((targetInfo.type.flags & 1) && !(originalSource.flags & 8190))) {
                return -1;
            }
            var sourceInfo = getIndexInfoOfType(source, kind) ||
                kind === 1 && getIndexInfoOfType(source, 0);
            if (sourceInfo) {
                return indexInfoRelatedTo(sourceInfo, targetInfo, reportErrors);
            }
            if (isObjectLiteralType(source)) {
                var related = -1;
                if (kind === 0) {
                    var sourceNumberInfo = getIndexInfoOfType(source, 1);
                    if (sourceNumberInfo) {
                        related = indexInfoRelatedTo(sourceNumberInfo, targetInfo, reportErrors);
                    }
                }
                if (related) {
                    related &= eachPropertyRelatedTo(source, targetInfo.type, kind, reportErrors);
                }
                return related;
            }
            if (reportErrors) {
                reportError(ts.Diagnostics.Index_signature_is_missing_in_type_0, typeToString(source));
            }
            return 0;
        }
        function indexTypesIdenticalTo(source, target, indexKind) {
            var targetInfo = getIndexInfoOfType(target, indexKind);
            var sourceInfo = getIndexInfoOfType(source, indexKind);
            if (!sourceInfo && !targetInfo) {
                return -1;
            }
            if (sourceInfo && targetInfo && sourceInfo.isReadonly === targetInfo.isReadonly) {
                return isRelatedTo(sourceInfo.type, targetInfo.type);
            }
            return 0;
        }
        function constructorVisibilitiesAreCompatible(sourceSignature, targetSignature, reportErrors) {
            if (!sourceSignature.declaration || !targetSignature.declaration) {
                return true;
            }
            var sourceAccessibility = ts.getModifierFlags(sourceSignature.declaration) & 24;
            var targetAccessibility = ts.getModifierFlags(targetSignature.declaration) & 24;
            if (targetAccessibility === 8) {
                return true;
            }
            if (targetAccessibility === 16 && sourceAccessibility !== 8) {
                return true;
            }
            if (targetAccessibility !== 16 && !sourceAccessibility) {
                return true;
            }
            if (reportErrors) {
                reportError(ts.Diagnostics.Cannot_assign_a_0_constructor_type_to_a_1_constructor_type, visibilityToString(sourceAccessibility), visibilityToString(targetAccessibility));
            }
            return false;
        }
    }
    function isAbstractConstructorType(type) {
        if (getObjectFlags(type) & 16) {
            var symbol = type.symbol;
            if (symbol && symbol.flags & 32) {
                var declaration = getClassLikeDeclarationOfSymbol(symbol);
                if (declaration && ts.getModifierFlags(declaration) & 128) {
                    return true;
                }
            }
        }
        return false;
    }
    function isDeeplyNestedGeneric(type, stack, depth) {
        if (getObjectFlags(type) & (4 | 64) && depth >= 5) {
            var symbol = type.symbol;
            var count = 0;
            for (var i = 0; i < depth; i++) {
                var t = stack[i];
                if (getObjectFlags(t) & (4 | 64) && t.symbol === symbol) {
                    count++;
                    if (count >= 5)
                        return true;
                }
            }
        }
        return false;
    }
    function isPropertyIdenticalTo(sourceProp, targetProp) {
        return compareProperties(sourceProp, targetProp, compareTypesIdentical) !== 0;
    }
    function compareProperties(sourceProp, targetProp, compareTypes) {
        if (sourceProp === targetProp) {
            return -1;
        }
        var sourcePropAccessibility = getDeclarationModifierFlagsFromSymbol(sourceProp) & 24;
        var targetPropAccessibility = getDeclarationModifierFlagsFromSymbol(targetProp) & 24;
        if (sourcePropAccessibility !== targetPropAccessibility) {
            return 0;
        }
        if (sourcePropAccessibility) {
            if (getTargetSymbol(sourceProp) !== getTargetSymbol(targetProp)) {
                return 0;
            }
        }
        else {
            if ((sourceProp.flags & 536870912) !== (targetProp.flags & 536870912)) {
                return 0;
            }
        }
        if (isReadonlySymbol(sourceProp) !== isReadonlySymbol(targetProp)) {
            return 0;
        }
        return compareTypes(getTypeOfSymbol(sourceProp), getTypeOfSymbol(targetProp));
    }
    function isMatchingSignature(source, target, partialMatch) {
        if (source.parameters.length === target.parameters.length &&
            source.minArgumentCount === target.minArgumentCount &&
            source.hasRestParameter === target.hasRestParameter) {
            return true;
        }
        var sourceRestCount = source.hasRestParameter ? 1 : 0;
        var targetRestCount = target.hasRestParameter ? 1 : 0;
        if (partialMatch && source.minArgumentCount <= target.minArgumentCount && (sourceRestCount > targetRestCount ||
            sourceRestCount === targetRestCount && source.parameters.length >= target.parameters.length)) {
            return true;
        }
        return false;
    }
    function compareSignaturesIdentical(source, target, partialMatch, ignoreThisTypes, ignoreReturnTypes, compareTypes) {
        if (source === target) {
            return -1;
        }
        if (!(isMatchingSignature(source, target, partialMatch))) {
            return 0;
        }
        if ((source.typeParameters ? source.typeParameters.length : 0) !== (target.typeParameters ? target.typeParameters.length : 0)) {
            return 0;
        }
        source = getErasedSignature(source);
        target = getErasedSignature(target);
        var result = -1;
        if (!ignoreThisTypes) {
            var sourceThisType = getThisTypeOfSignature(source);
            if (sourceThisType) {
                var targetThisType = getThisTypeOfSignature(target);
                if (targetThisType) {
                    var related = compareTypes(sourceThisType, targetThisType);
                    if (!related) {
                        return 0;
                    }
                    result &= related;
                }
            }
        }
        var targetLen = target.parameters.length;
        for (var i = 0; i < targetLen; i++) {
            var s = isRestParameterIndex(source, i) ? getRestTypeOfSignature(source) : getTypeOfParameter(source.parameters[i]);
            var t = isRestParameterIndex(target, i) ? getRestTypeOfSignature(target) : getTypeOfParameter(target.parameters[i]);
            var related = compareTypes(s, t);
            if (!related) {
                return 0;
            }
            result &= related;
        }
        if (!ignoreReturnTypes) {
            result &= compareTypes(getReturnTypeOfSignature(source), getReturnTypeOfSignature(target));
        }
        return result;
    }
    function isRestParameterIndex(signature, parameterIndex) {
        return signature.hasRestParameter && parameterIndex >= signature.parameters.length - 1;
    }
    function isSupertypeOfEach(candidate, types) {
        for (var _i = 0, types_7 = types; _i < types_7.length; _i++) {
            var t = types_7[_i];
            if (candidate !== t && !isTypeSubtypeOf(t, candidate))
                return false;
        }
        return true;
    }
    function literalTypesWithSameBaseType(types) {
        var commonBaseType;
        for (var _i = 0, types_8 = types; _i < types_8.length; _i++) {
            var t = types_8[_i];
            var baseType = getBaseTypeOfLiteralType(t);
            if (!commonBaseType) {
                commonBaseType = baseType;
            }
            if (baseType === t || baseType !== commonBaseType) {
                return false;
            }
        }
        return true;
    }
    function getSupertypeOrUnion(types) {
        return literalTypesWithSameBaseType(types) ? getUnionType(types) : ts.forEach(types, function (t) { return isSupertypeOfEach(t, types) ? t : undefined; });
    }
    function getCommonSupertype(types) {
        if (!strictNullChecks) {
            return getSupertypeOrUnion(types);
        }
        var primaryTypes = ts.filter(types, function (t) { return !(t.flags & 6144); });
        if (!primaryTypes.length) {
            return getUnionType(types, true);
        }
        var supertype = getSupertypeOrUnion(primaryTypes);
        return supertype && includeFalsyTypes(supertype, getFalsyFlagsOfTypes(types) & 6144);
    }
    function reportNoCommonSupertypeError(types, errorLocation, errorMessageChainHead) {
        var bestSupertype;
        var bestSupertypeDownfallType;
        var bestSupertypeScore = 0;
        for (var i = 0; i < types.length; i++) {
            var score = 0;
            var downfallType = undefined;
            for (var j = 0; j < types.length; j++) {
                if (isTypeSubtypeOf(types[j], types[i])) {
                    score++;
                }
                else if (!downfallType) {
                    downfallType = types[j];
                }
            }
            ts.Debug.assert(!!downfallType, "If there is no common supertype, each type should have a downfallType");
            if (score > bestSupertypeScore) {
                bestSupertype = types[i];
                bestSupertypeDownfallType = downfallType;
                bestSupertypeScore = score;
            }
            if (bestSupertypeScore === types.length - 1) {
                break;
            }
        }
        checkTypeSubtypeOf(bestSupertypeDownfallType, bestSupertype, errorLocation, ts.Diagnostics.Type_argument_candidate_1_is_not_a_valid_type_argument_because_it_is_not_a_supertype_of_candidate_0, errorMessageChainHead);
    }
    function isArrayType(type) {
        return getObjectFlags(type) & 4 && type.target === globalArrayType;
    }
    function isArrayLikeType(type) {
        return getObjectFlags(type) & 4 && (type.target === globalArrayType || type.target === globalReadonlyArrayType) ||
            !(type.flags & 6144) && isTypeAssignableTo(type, anyReadonlyArrayType);
    }
    function isTupleLikeType(type) {
        return !!getPropertyOfType(type, "0");
    }
    function isUnitType(type) {
        return (type.flags & (480 | 2048 | 4096)) !== 0;
    }
    function isLiteralType(type) {
        return type.flags & 8 ? true :
            type.flags & 65536 ? type.flags & 16 ? true : !ts.forEach(type.types, function (t) { return !isUnitType(t); }) :
                isUnitType(type);
    }
    function getBaseTypeOfLiteralType(type) {
        return type.flags & 32 ? stringType :
            type.flags & 64 ? numberType :
                type.flags & 128 ? booleanType :
                    type.flags & 256 ? type.baseType :
                        type.flags & 65536 && !(type.flags & 16) ? getUnionType(ts.sameMap(type.types, getBaseTypeOfLiteralType)) :
                            type;
    }
    function getWidenedLiteralType(type) {
        return type.flags & 32 && type.flags & 1048576 ? stringType :
            type.flags & 64 && type.flags & 1048576 ? numberType :
                type.flags & 128 ? booleanType :
                    type.flags & 256 ? type.baseType :
                        type.flags & 65536 && !(type.flags & 16) ? getUnionType(ts.sameMap(type.types, getWidenedLiteralType)) :
                            type;
    }
    function isTupleType(type) {
        return !!(getObjectFlags(type) & 4 && type.target.objectFlags & 8);
    }
    function getFalsyFlagsOfTypes(types) {
        var result = 0;
        for (var _i = 0, types_9 = types; _i < types_9.length; _i++) {
            var t = types_9[_i];
            result |= getFalsyFlags(t);
        }
        return result;
    }
    function getFalsyFlags(type) {
        return type.flags & 65536 ? getFalsyFlagsOfTypes(type.types) :
            type.flags & 32 ? type.text === "" ? 32 : 0 :
                type.flags & 64 ? type.text === "0" ? 64 : 0 :
                    type.flags & 128 ? type === falseType ? 128 : 0 :
                        type.flags & 7406;
    }
    function includeFalsyTypes(type, flags) {
        if ((getFalsyFlags(type) & flags) === flags) {
            return type;
        }
        var types = [type];
        if (flags & 262178)
            types.push(emptyStringType);
        if (flags & 340)
            types.push(zeroType);
        if (flags & 136)
            types.push(falseType);
        if (flags & 1024)
            types.push(voidType);
        if (flags & 2048)
            types.push(undefinedType);
        if (flags & 4096)
            types.push(nullType);
        return getUnionType(types, true);
    }
    function removeDefinitelyFalsyTypes(type) {
        return getFalsyFlags(type) & 7392 ?
            filterType(type, function (t) { return !(getFalsyFlags(t) & 7392); }) :
            type;
    }
    function getNonNullableType(type) {
        return strictNullChecks ? getTypeWithFacts(type, 524288) : type;
    }
    function isObjectLiteralType(type) {
        return type.symbol && (type.symbol.flags & (4096 | 2048)) !== 0 &&
            getSignaturesOfType(type, 0).length === 0 &&
            getSignaturesOfType(type, 1).length === 0;
    }
    function createTransientSymbol(source, type) {
        var symbol = createSymbol(source.flags | 67108864, source.name);
        symbol.declarations = source.declarations;
        symbol.parent = source.parent;
        symbol.type = type;
        symbol.target = source;
        if (source.valueDeclaration) {
            symbol.valueDeclaration = source.valueDeclaration;
        }
        return symbol;
    }
    function transformTypeOfMembers(type, f) {
        var members = ts.createMap();
        for (var _i = 0, _a = getPropertiesOfObjectType(type); _i < _a.length; _i++) {
            var property = _a[_i];
            var original = getTypeOfSymbol(property);
            var updated = f(original);
            members[property.name] = updated === original ? property : createTransientSymbol(property, updated);
        }
        ;
        return members;
    }
    function getRegularTypeOfObjectLiteral(type) {
        if (!(getObjectFlags(type) & 128 && type.flags & 1048576)) {
            return type;
        }
        var regularType = type.regularType;
        if (regularType) {
            return regularType;
        }
        var resolved = type;
        var members = transformTypeOfMembers(type, getRegularTypeOfObjectLiteral);
        var regularNew = createAnonymousType(resolved.symbol, members, resolved.callSignatures, resolved.constructSignatures, resolved.stringIndexInfo, resolved.numberIndexInfo);
        regularNew.flags = resolved.flags & ~1048576;
        regularNew.objectFlags |= 128;
        type.regularType = regularNew;
        return regularNew;
    }
    function getWidenedTypeOfObjectLiteral(type) {
        var members = transformTypeOfMembers(type, function (prop) {
            var widened = getWidenedType(prop);
            return prop === widened ? prop : widened;
        });
        var stringIndexInfo = getIndexInfoOfType(type, 0);
        var numberIndexInfo = getIndexInfoOfType(type, 1);
        return createAnonymousType(type.symbol, members, emptyArray, emptyArray, stringIndexInfo && createIndexInfo(getWidenedType(stringIndexInfo.type), stringIndexInfo.isReadonly), numberIndexInfo && createIndexInfo(getWidenedType(numberIndexInfo.type), numberIndexInfo.isReadonly));
    }
    function getWidenedConstituentType(type) {
        return type.flags & 6144 ? type : getWidenedType(type);
    }
    function getWidenedType(type) {
        if (type.flags & 6291456) {
            if (type.flags & 6144) {
                return anyType;
            }
            if (getObjectFlags(type) & 128) {
                return getWidenedTypeOfObjectLiteral(type);
            }
            if (type.flags & 65536) {
                return getUnionType(ts.sameMap(type.types, getWidenedConstituentType));
            }
            if (isArrayType(type) || isTupleType(type)) {
                return createTypeReference(type.target, ts.sameMap(type.typeArguments, getWidenedType));
            }
        }
        return type;
    }
    function reportWideningErrorsInType(type) {
        var errorReported = false;
        if (type.flags & 65536) {
            for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
                var t = _a[_i];
                if (reportWideningErrorsInType(t)) {
                    errorReported = true;
                }
            }
        }
        if (isArrayType(type) || isTupleType(type)) {
            for (var _b = 0, _c = type.typeArguments; _b < _c.length; _b++) {
                var t = _c[_b];
                if (reportWideningErrorsInType(t)) {
                    errorReported = true;
                }
            }
        }
        if (getObjectFlags(type) & 128) {
            for (var _d = 0, _e = getPropertiesOfObjectType(type); _d < _e.length; _d++) {
                var p = _e[_d];
                var t = getTypeOfSymbol(p);
                if (t.flags & 2097152) {
                    if (!reportWideningErrorsInType(t)) {
                        error(p.valueDeclaration, ts.Diagnostics.Object_literal_s_property_0_implicitly_has_an_1_type, p.name, typeToString(getWidenedType(t)));
                    }
                    errorReported = true;
                }
            }
        }
        return errorReported;
    }
    function reportImplicitAnyError(declaration, type) {
        var typeAsString = typeToString(getWidenedType(type));
        var diagnostic;
        switch (declaration.kind) {
            case 147:
            case 146:
                diagnostic = ts.Diagnostics.Member_0_implicitly_has_an_1_type;
                break;
            case 144:
                diagnostic = declaration.dotDotDotToken ?
                    ts.Diagnostics.Rest_parameter_0_implicitly_has_an_any_type :
                    ts.Diagnostics.Parameter_0_implicitly_has_an_1_type;
                break;
            case 174:
                diagnostic = ts.Diagnostics.Binding_element_0_implicitly_has_an_1_type;
                break;
            case 225:
            case 149:
            case 148:
            case 151:
            case 152:
            case 184:
            case 185:
                if (!declaration.name) {
                    error(declaration, ts.Diagnostics.Function_expression_which_lacks_return_type_annotation_implicitly_has_an_0_return_type, typeAsString);
                    return;
                }
                diagnostic = ts.Diagnostics._0_which_lacks_return_type_annotation_implicitly_has_an_1_return_type;
                break;
            default:
                diagnostic = ts.Diagnostics.Variable_0_implicitly_has_an_1_type;
        }
        error(declaration, diagnostic, ts.declarationNameToString(declaration.name), typeAsString);
    }
    function reportErrorsFromWidening(declaration, type) {
        if (produceDiagnostics && compilerOptions.noImplicitAny && type.flags & 2097152) {
            if (!reportWideningErrorsInType(type)) {
                reportImplicitAnyError(declaration, type);
            }
        }
    }
    function forEachMatchingParameterType(source, target, callback) {
        var sourceMax = source.parameters.length;
        var targetMax = target.parameters.length;
        var count;
        if (source.hasRestParameter && target.hasRestParameter) {
            count = Math.max(sourceMax, targetMax);
        }
        else if (source.hasRestParameter) {
            count = targetMax;
        }
        else if (target.hasRestParameter) {
            count = sourceMax;
        }
        else {
            count = Math.min(sourceMax, targetMax);
        }
        for (var i = 0; i < count; i++) {
            callback(getTypeAtPosition(source, i), getTypeAtPosition(target, i));
        }
    }
    function createInferenceContext(signature, inferUnionTypes) {
        var inferences = ts.map(signature.typeParameters, createTypeInferencesObject);
        return {
            signature: signature,
            inferUnionTypes: inferUnionTypes,
            inferences: inferences,
            inferredTypes: new Array(signature.typeParameters.length),
        };
    }
    function createTypeInferencesObject() {
        return {
            primary: undefined,
            secondary: undefined,
            topLevel: true,
            isFixed: false,
        };
    }
    function couldContainTypeVariables(type) {
        var objectFlags = getObjectFlags(type);
        return !!(type.flags & 540672 ||
            objectFlags & 4 && ts.forEach(type.typeArguments, couldContainTypeVariables) ||
            objectFlags & 16 && type.symbol && type.symbol.flags & (8192 | 2048 | 32) ||
            objectFlags & 32 ||
            type.flags & 196608 && couldUnionOrIntersectionContainTypeVariables(type));
    }
    function couldUnionOrIntersectionContainTypeVariables(type) {
        if (type.couldContainTypeVariables === undefined) {
            type.couldContainTypeVariables = ts.forEach(type.types, couldContainTypeVariables);
        }
        return type.couldContainTypeVariables;
    }
    function isTypeParameterAtTopLevel(type, typeParameter) {
        return type === typeParameter || type.flags & 196608 && ts.forEach(type.types, function (t) { return isTypeParameterAtTopLevel(t, typeParameter); });
    }
    function inferTypeForHomomorphicMappedType(source, target) {
        var properties = getPropertiesOfType(source);
        var indexInfo = getIndexInfoOfType(source, 0);
        if (properties.length === 0 && !indexInfo) {
            return undefined;
        }
        var typeVariable = getIndexedAccessType(getConstraintTypeFromMappedType(target).type, getTypeParameterFromMappedType(target));
        var typeVariableArray = [typeVariable];
        var typeInferences = createTypeInferencesObject();
        var typeInferencesArray = [typeInferences];
        var templateType = getTemplateTypeFromMappedType(target);
        var readonlyMask = target.declaration.readonlyToken ? false : true;
        var optionalMask = target.declaration.questionToken ? 0 : 536870912;
        var members = createSymbolTable(properties);
        for (var _i = 0, properties_4 = properties; _i < properties_4.length; _i++) {
            var prop = properties_4[_i];
            var inferredPropType = inferTargetType(getTypeOfSymbol(prop));
            if (!inferredPropType) {
                return undefined;
            }
            var inferredProp = createSymbol(4 | 67108864 | prop.flags & optionalMask, prop.name);
            inferredProp.declarations = prop.declarations;
            inferredProp.type = inferredPropType;
            inferredProp.isReadonly = readonlyMask && isReadonlySymbol(prop);
            members[prop.name] = inferredProp;
        }
        if (indexInfo) {
            var inferredIndexType = inferTargetType(indexInfo.type);
            if (!inferredIndexType) {
                return undefined;
            }
            indexInfo = createIndexInfo(inferredIndexType, readonlyMask && indexInfo.isReadonly);
        }
        return createAnonymousType(undefined, members, emptyArray, emptyArray, indexInfo, undefined);
        function inferTargetType(sourceType) {
            typeInferences.primary = undefined;
            typeInferences.secondary = undefined;
            inferTypes(typeVariableArray, typeInferencesArray, sourceType, templateType);
            var inferences = typeInferences.primary || typeInferences.secondary;
            return inferences && getUnionType(inferences, true);
        }
    }
    function inferTypesWithContext(context, originalSource, originalTarget) {
        inferTypes(context.signature.typeParameters, context.inferences, originalSource, originalTarget);
    }
    function inferTypes(typeVariables, typeInferences, originalSource, originalTarget) {
        var sourceStack;
        var targetStack;
        var depth = 0;
        var inferiority = 0;
        var visited = ts.createMap();
        inferFromTypes(originalSource, originalTarget);
        function isInProcess(source, target) {
            for (var i = 0; i < depth; i++) {
                if (source === sourceStack[i] && target === targetStack[i]) {
                    return true;
                }
            }
            return false;
        }
        function inferFromTypes(source, target) {
            if (!couldContainTypeVariables(target)) {
                return;
            }
            if (source.aliasSymbol && source.aliasTypeArguments && source.aliasSymbol === target.aliasSymbol) {
                var sourceTypes = source.aliasTypeArguments;
                var targetTypes = target.aliasTypeArguments;
                for (var i = 0; i < sourceTypes.length; i++) {
                    inferFromTypes(sourceTypes[i], targetTypes[i]);
                }
                return;
            }
            if (source.flags & 65536 && target.flags & 65536 && !(source.flags & 16 && target.flags & 16) ||
                source.flags & 131072 && target.flags & 131072) {
                if (source === target) {
                    for (var _i = 0, _a = source.types; _i < _a.length; _i++) {
                        var t = _a[_i];
                        inferFromTypes(t, t);
                    }
                    return;
                }
                var matchingTypes = void 0;
                for (var _b = 0, _c = source.types; _b < _c.length; _b++) {
                    var t = _c[_b];
                    if (typeIdenticalToSomeType(t, target.types)) {
                        (matchingTypes || (matchingTypes = [])).push(t);
                        inferFromTypes(t, t);
                    }
                    else if (t.flags & (64 | 32)) {
                        var b = getBaseTypeOfLiteralType(t);
                        if (typeIdenticalToSomeType(b, target.types)) {
                            (matchingTypes || (matchingTypes = [])).push(t, b);
                        }
                    }
                }
                if (matchingTypes) {
                    source = removeTypesFromUnionOrIntersection(source, matchingTypes);
                    target = removeTypesFromUnionOrIntersection(target, matchingTypes);
                }
            }
            if (target.flags & 540672) {
                if (source.flags & 8388608) {
                    return;
                }
                for (var i = 0; i < typeVariables.length; i++) {
                    if (target === typeVariables[i]) {
                        var inferences = typeInferences[i];
                        if (!inferences.isFixed) {
                            var candidates = inferiority ?
                                inferences.secondary || (inferences.secondary = []) :
                                inferences.primary || (inferences.primary = []);
                            if (!ts.contains(candidates, source)) {
                                candidates.push(source);
                            }
                            if (target.flags & 16384 && !isTypeParameterAtTopLevel(originalTarget, target)) {
                                inferences.topLevel = false;
                            }
                        }
                        return;
                    }
                }
            }
            else if (getObjectFlags(source) & 4 && getObjectFlags(target) & 4 && source.target === target.target) {
                var sourceTypes = source.typeArguments || emptyArray;
                var targetTypes = target.typeArguments || emptyArray;
                var count = sourceTypes.length < targetTypes.length ? sourceTypes.length : targetTypes.length;
                for (var i = 0; i < count; i++) {
                    inferFromTypes(sourceTypes[i], targetTypes[i]);
                }
            }
            else if (target.flags & 196608) {
                var targetTypes = target.types;
                var typeVariableCount = 0;
                var typeVariable = void 0;
                for (var _d = 0, targetTypes_2 = targetTypes; _d < targetTypes_2.length; _d++) {
                    var t = targetTypes_2[_d];
                    if (t.flags & 540672 && ts.contains(typeVariables, t)) {
                        typeVariable = t;
                        typeVariableCount++;
                    }
                    else {
                        inferFromTypes(source, t);
                    }
                }
                if (typeVariableCount === 1) {
                    inferiority++;
                    inferFromTypes(source, typeVariable);
                    inferiority--;
                }
            }
            else if (source.flags & 196608) {
                var sourceTypes = source.types;
                for (var _e = 0, sourceTypes_3 = sourceTypes; _e < sourceTypes_3.length; _e++) {
                    var sourceType = sourceTypes_3[_e];
                    inferFromTypes(sourceType, target);
                }
            }
            else {
                source = getApparentType(source);
                if (source.flags & 32768) {
                    if (isInProcess(source, target)) {
                        return;
                    }
                    if (isDeeplyNestedGeneric(source, sourceStack, depth) && isDeeplyNestedGeneric(target, targetStack, depth)) {
                        return;
                    }
                    var key = source.id + "," + target.id;
                    if (visited[key]) {
                        return;
                    }
                    visited[key] = true;
                    if (depth === 0) {
                        sourceStack = [];
                        targetStack = [];
                    }
                    sourceStack[depth] = source;
                    targetStack[depth] = target;
                    depth++;
                    inferFromObjectTypes(source, target);
                    depth--;
                }
            }
        }
        function inferFromObjectTypes(source, target) {
            if (getObjectFlags(target) & 32) {
                var constraintType = getConstraintTypeFromMappedType(target);
                if (constraintType.flags & 262144) {
                    var index = ts.indexOf(typeVariables, constraintType.type);
                    if (index >= 0 && !typeInferences[index].isFixed) {
                        var inferredType = inferTypeForHomomorphicMappedType(source, target);
                        if (inferredType) {
                            inferiority++;
                            inferFromTypes(inferredType, typeVariables[index]);
                            inferiority--;
                        }
                    }
                    return;
                }
                if (constraintType.flags & 16384) {
                    inferFromTypes(getIndexType(source), constraintType);
                    inferFromTypes(getUnionType(ts.map(getPropertiesOfType(source), getTypeOfSymbol)), getTemplateTypeFromMappedType(target));
                    return;
                }
            }
            inferFromProperties(source, target);
            inferFromSignatures(source, target, 0);
            inferFromSignatures(source, target, 1);
            inferFromIndexTypes(source, target);
        }
        function inferFromProperties(source, target) {
            var properties = getPropertiesOfObjectType(target);
            for (var _i = 0, properties_5 = properties; _i < properties_5.length; _i++) {
                var targetProp = properties_5[_i];
                var sourceProp = getPropertyOfObjectType(source, targetProp.name);
                if (sourceProp) {
                    inferFromTypes(getTypeOfSymbol(sourceProp), getTypeOfSymbol(targetProp));
                }
            }
        }
        function inferFromSignatures(source, target, kind) {
            var sourceSignatures = getSignaturesOfType(source, kind);
            var targetSignatures = getSignaturesOfType(target, kind);
            var sourceLen = sourceSignatures.length;
            var targetLen = targetSignatures.length;
            var len = sourceLen < targetLen ? sourceLen : targetLen;
            for (var i = 0; i < len; i++) {
                inferFromSignature(getErasedSignature(sourceSignatures[sourceLen - len + i]), getErasedSignature(targetSignatures[targetLen - len + i]));
            }
        }
        function inferFromParameterTypes(source, target) {
            return inferFromTypes(source, target);
        }
        function inferFromSignature(source, target) {
            forEachMatchingParameterType(source, target, inferFromParameterTypes);
            if (source.typePredicate && target.typePredicate && source.typePredicate.kind === target.typePredicate.kind) {
                inferFromTypes(source.typePredicate.type, target.typePredicate.type);
            }
            else {
                inferFromTypes(getReturnTypeOfSignature(source), getReturnTypeOfSignature(target));
            }
        }
        function inferFromIndexTypes(source, target) {
            var targetStringIndexType = getIndexTypeOfType(target, 0);
            if (targetStringIndexType) {
                var sourceIndexType = getIndexTypeOfType(source, 0) ||
                    getImplicitIndexTypeOfType(source, 0);
                if (sourceIndexType) {
                    inferFromTypes(sourceIndexType, targetStringIndexType);
                }
            }
            var targetNumberIndexType = getIndexTypeOfType(target, 1);
            if (targetNumberIndexType) {
                var sourceIndexType = getIndexTypeOfType(source, 1) ||
                    getIndexTypeOfType(source, 0) ||
                    getImplicitIndexTypeOfType(source, 1);
                if (sourceIndexType) {
                    inferFromTypes(sourceIndexType, targetNumberIndexType);
                }
            }
        }
    }
    function typeIdenticalToSomeType(type, types) {
        for (var _i = 0, types_10 = types; _i < types_10.length; _i++) {
            var t = types_10[_i];
            if (isTypeIdenticalTo(t, type)) {
                return true;
            }
        }
        return false;
    }
    function removeTypesFromUnionOrIntersection(type, typesToRemove) {
        var reducedTypes = [];
        for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
            var t = _a[_i];
            if (!typeIdenticalToSomeType(t, typesToRemove)) {
                reducedTypes.push(t);
            }
        }
        return type.flags & 65536 ? getUnionType(reducedTypes) : getIntersectionType(reducedTypes);
    }
    function getInferenceCandidates(context, index) {
        var inferences = context.inferences[index];
        return inferences.primary || inferences.secondary || emptyArray;
    }
    function hasPrimitiveConstraint(type) {
        var constraint = getConstraintOfTypeParameter(type);
        return constraint && maybeTypeOfKind(constraint, 8190 | 262144);
    }
    function getInferredType(context, index) {
        var inferredType = context.inferredTypes[index];
        var inferenceSucceeded;
        if (!inferredType) {
            var inferences = getInferenceCandidates(context, index);
            if (inferences.length) {
                var signature = context.signature;
                var widenLiteralTypes = context.inferences[index].topLevel &&
                    !hasPrimitiveConstraint(signature.typeParameters[index]) &&
                    (context.inferences[index].isFixed || !isTypeParameterAtTopLevel(getReturnTypeOfSignature(signature), signature.typeParameters[index]));
                var baseInferences = widenLiteralTypes ? ts.sameMap(inferences, getWidenedLiteralType) : inferences;
                var unionOrSuperType = context.inferUnionTypes ? getUnionType(baseInferences, true) : getCommonSupertype(baseInferences);
                inferredType = unionOrSuperType ? getWidenedType(unionOrSuperType) : unknownType;
                inferenceSucceeded = !!unionOrSuperType;
            }
            else {
                inferredType = emptyObjectType;
                inferenceSucceeded = true;
            }
            context.inferredTypes[index] = inferredType;
            if (inferenceSucceeded) {
                var constraint = getConstraintOfTypeParameter(context.signature.typeParameters[index]);
                if (constraint) {
                    var instantiatedConstraint = instantiateType(constraint, getInferenceMapper(context));
                    if (!isTypeAssignableTo(inferredType, getTypeWithThisArgument(instantiatedConstraint, inferredType))) {
                        context.inferredTypes[index] = inferredType = instantiatedConstraint;
                    }
                }
            }
            else if (context.failedTypeParameterIndex === undefined || context.failedTypeParameterIndex > index) {
                context.failedTypeParameterIndex = index;
            }
        }
        return inferredType;
    }
    function getInferredTypes(context) {
        for (var i = 0; i < context.inferredTypes.length; i++) {
            getInferredType(context, i);
        }
        return context.inferredTypes;
    }
    function getResolvedSymbol(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedSymbol) {
            links.resolvedSymbol = !ts.nodeIsMissing(node) && resolveName(node, node.text, 107455 | 1048576, ts.Diagnostics.Cannot_find_name_0, node) || unknownSymbol;
        }
        return links.resolvedSymbol;
    }
    function isInTypeQuery(node) {
        while (node) {
            switch (node.kind) {
                case 160:
                    return true;
                case 70:
                case 141:
                    node = node.parent;
                    continue;
                default:
                    return false;
            }
        }
        ts.Debug.fail("should not get here");
    }
    function getFlowCacheKey(node) {
        if (node.kind === 70) {
            var symbol = getResolvedSymbol(node);
            return symbol !== unknownSymbol ? "" + getSymbolId(symbol) : undefined;
        }
        if (node.kind === 98) {
            return "0";
        }
        if (node.kind === 177) {
            var key = getFlowCacheKey(node.expression);
            return key && key + "." + node.name.text;
        }
        return undefined;
    }
    function getLeftmostIdentifierOrThis(node) {
        switch (node.kind) {
            case 70:
            case 98:
                return node;
            case 177:
                return getLeftmostIdentifierOrThis(node.expression);
        }
        return undefined;
    }
    function isMatchingReference(source, target) {
        switch (source.kind) {
            case 70:
                return target.kind === 70 && getResolvedSymbol(source) === getResolvedSymbol(target) ||
                    (target.kind === 223 || target.kind === 174) &&
                        getExportSymbolOfValueSymbolIfExported(getResolvedSymbol(source)) === getSymbolOfNode(target);
            case 98:
                return target.kind === 98;
            case 177:
                return target.kind === 177 &&
                    source.name.text === target.name.text &&
                    isMatchingReference(source.expression, target.expression);
        }
        return false;
    }
    function containsMatchingReference(source, target) {
        while (source.kind === 177) {
            source = source.expression;
            if (isMatchingReference(source, target)) {
                return true;
            }
        }
        return false;
    }
    function containsMatchingReferenceDiscriminant(source, target) {
        return target.kind === 177 &&
            containsMatchingReference(source, target.expression) &&
            isDiscriminantProperty(getDeclaredTypeOfReference(target.expression), target.name.text);
    }
    function getDeclaredTypeOfReference(expr) {
        if (expr.kind === 70) {
            return getTypeOfSymbol(getResolvedSymbol(expr));
        }
        if (expr.kind === 177) {
            var type = getDeclaredTypeOfReference(expr.expression);
            return type && getTypeOfPropertyOfType(type, expr.name.text);
        }
        return undefined;
    }
    function isDiscriminantProperty(type, name) {
        if (type && type.flags & 65536) {
            var prop = getUnionOrIntersectionProperty(type, name);
            if (prop && prop.flags & 268435456) {
                if (prop.isDiscriminantProperty === undefined) {
                    prop.isDiscriminantProperty = prop.hasNonUniformType && isLiteralType(getTypeOfSymbol(prop));
                }
                return prop.isDiscriminantProperty;
            }
        }
        return false;
    }
    function isOrContainsMatchingReference(source, target) {
        return isMatchingReference(source, target) || containsMatchingReference(source, target);
    }
    function hasMatchingArgument(callExpression, reference) {
        if (callExpression.arguments) {
            for (var _i = 0, _a = callExpression.arguments; _i < _a.length; _i++) {
                var argument = _a[_i];
                if (isOrContainsMatchingReference(reference, argument)) {
                    return true;
                }
            }
        }
        if (callExpression.expression.kind === 177 &&
            isOrContainsMatchingReference(reference, callExpression.expression.expression)) {
            return true;
        }
        return false;
    }
    function getFlowNodeId(flow) {
        if (!flow.id) {
            flow.id = nextFlowId;
            nextFlowId++;
        }
        return flow.id;
    }
    function typeMaybeAssignableTo(source, target) {
        if (!(source.flags & 65536)) {
            return isTypeAssignableTo(source, target);
        }
        for (var _i = 0, _a = source.types; _i < _a.length; _i++) {
            var t = _a[_i];
            if (isTypeAssignableTo(t, target)) {
                return true;
            }
        }
        return false;
    }
    function getAssignmentReducedType(declaredType, assignedType) {
        if (declaredType !== assignedType) {
            if (assignedType.flags & 8192) {
                return assignedType;
            }
            var reducedType = filterType(declaredType, function (t) { return typeMaybeAssignableTo(assignedType, t); });
            if (!(reducedType.flags & 8192)) {
                return reducedType;
            }
        }
        return declaredType;
    }
    function getTypeFactsOfTypes(types) {
        var result = 0;
        for (var _i = 0, types_11 = types; _i < types_11.length; _i++) {
            var t = types_11[_i];
            result |= getTypeFacts(t);
        }
        return result;
    }
    function isFunctionObjectType(type) {
        var resolved = resolveStructuredTypeMembers(type);
        return !!(resolved.callSignatures.length || resolved.constructSignatures.length ||
            resolved.members["bind"] && isTypeSubtypeOf(type, globalFunctionType));
    }
    function getTypeFacts(type) {
        var flags = type.flags;
        if (flags & 2) {
            return strictNullChecks ? 4079361 : 4194049;
        }
        if (flags & 32) {
            return strictNullChecks ?
                type.text === "" ? 3030785 : 1982209 :
                type.text === "" ? 3145473 : 4194049;
        }
        if (flags & (4 | 16)) {
            return strictNullChecks ? 4079234 : 4193922;
        }
        if (flags & (64 | 256)) {
            var isZero = type.text === "0";
            return strictNullChecks ?
                isZero ? 3030658 : 1982082 :
                isZero ? 3145346 : 4193922;
        }
        if (flags & 8) {
            return strictNullChecks ? 4078980 : 4193668;
        }
        if (flags & 136) {
            return strictNullChecks ?
                type === falseType ? 3030404 : 1981828 :
                type === falseType ? 3145092 : 4193668;
        }
        if (flags & 32768) {
            return isFunctionObjectType(type) ?
                strictNullChecks ? 6164448 : 8376288 :
                strictNullChecks ? 6166480 : 8378320;
        }
        if (flags & (1024 | 2048)) {
            return 2457472;
        }
        if (flags & 4096) {
            return 2340752;
        }
        if (flags & 512) {
            return strictNullChecks ? 1981320 : 4193160;
        }
        if (flags & 16384) {
            var constraint = getConstraintOfTypeParameter(type);
            return getTypeFacts(constraint || emptyObjectType);
        }
        if (flags & 196608) {
            return getTypeFactsOfTypes(type.types);
        }
        return 8388607;
    }
    function getTypeWithFacts(type, include) {
        return filterType(type, function (t) { return (getTypeFacts(t) & include) !== 0; });
    }
    function getTypeWithDefault(type, defaultExpression) {
        if (defaultExpression) {
            var defaultType = getTypeOfExpression(defaultExpression);
            return getUnionType([getTypeWithFacts(type, 131072), defaultType]);
        }
        return type;
    }
    function getTypeOfDestructuredProperty(type, name) {
        var text = ts.getTextOfPropertyName(name);
        return getTypeOfPropertyOfType(type, text) ||
            isNumericLiteralName(text) && getIndexTypeOfType(type, 1) ||
            getIndexTypeOfType(type, 0) ||
            unknownType;
    }
    function getTypeOfDestructuredArrayElement(type, index) {
        return isTupleLikeType(type) && getTypeOfPropertyOfType(type, "" + index) ||
            checkIteratedTypeOrElementType(type, undefined, false) ||
            unknownType;
    }
    function getTypeOfDestructuredSpreadExpression(type) {
        return createArrayType(checkIteratedTypeOrElementType(type, undefined, false) || unknownType);
    }
    function getAssignedTypeOfBinaryExpression(node) {
        return node.parent.kind === 175 || node.parent.kind === 257 ?
            getTypeWithDefault(getAssignedType(node), node.right) :
            getTypeOfExpression(node.right);
    }
    function getAssignedTypeOfArrayLiteralElement(node, element) {
        return getTypeOfDestructuredArrayElement(getAssignedType(node), ts.indexOf(node.elements, element));
    }
    function getAssignedTypeOfSpreadExpression(node) {
        return getTypeOfDestructuredSpreadExpression(getAssignedType(node.parent));
    }
    function getAssignedTypeOfPropertyAssignment(node) {
        return getTypeOfDestructuredProperty(getAssignedType(node.parent), node.name);
    }
    function getAssignedTypeOfShorthandPropertyAssignment(node) {
        return getTypeWithDefault(getAssignedTypeOfPropertyAssignment(node), node.objectAssignmentInitializer);
    }
    function getAssignedType(node) {
        var parent = node.parent;
        switch (parent.kind) {
            case 212:
                return stringType;
            case 213:
                return checkRightHandSideOfForOf(parent.expression) || unknownType;
            case 192:
                return getAssignedTypeOfBinaryExpression(parent);
            case 186:
                return undefinedType;
            case 175:
                return getAssignedTypeOfArrayLiteralElement(parent, node);
            case 196:
                return getAssignedTypeOfSpreadExpression(parent);
            case 257:
                return getAssignedTypeOfPropertyAssignment(parent);
            case 258:
                return getAssignedTypeOfShorthandPropertyAssignment(parent);
        }
        return unknownType;
    }
    function getInitialTypeOfBindingElement(node) {
        var pattern = node.parent;
        var parentType = getInitialType(pattern.parent);
        var type = pattern.kind === 172 ?
            getTypeOfDestructuredProperty(parentType, node.propertyName || node.name) :
            !node.dotDotDotToken ?
                getTypeOfDestructuredArrayElement(parentType, ts.indexOf(pattern.elements, node)) :
                getTypeOfDestructuredSpreadExpression(parentType);
        return getTypeWithDefault(type, node.initializer);
    }
    function getTypeOfInitializer(node) {
        var links = getNodeLinks(node);
        return links.resolvedType || getTypeOfExpression(node);
    }
    function getInitialTypeOfVariableDeclaration(node) {
        if (node.initializer) {
            return getTypeOfInitializer(node.initializer);
        }
        if (node.parent.parent.kind === 212) {
            return stringType;
        }
        if (node.parent.parent.kind === 213) {
            return checkRightHandSideOfForOf(node.parent.parent.expression) || unknownType;
        }
        return unknownType;
    }
    function getInitialType(node) {
        return node.kind === 223 ?
            getInitialTypeOfVariableDeclaration(node) :
            getInitialTypeOfBindingElement(node);
    }
    function getInitialOrAssignedType(node) {
        return node.kind === 223 || node.kind === 174 ?
            getInitialType(node) :
            getAssignedType(node);
    }
    function isEmptyArrayAssignment(node) {
        return node.kind === 223 && node.initializer &&
            isEmptyArrayLiteral(node.initializer) ||
            node.kind !== 174 && node.parent.kind === 192 &&
                isEmptyArrayLiteral(node.parent.right);
    }
    function getReferenceCandidate(node) {
        switch (node.kind) {
            case 183:
                return getReferenceCandidate(node.expression);
            case 192:
                switch (node.operatorToken.kind) {
                    case 57:
                        return getReferenceCandidate(node.left);
                    case 25:
                        return getReferenceCandidate(node.right);
                }
        }
        return node;
    }
    function getReferenceRoot(node) {
        var parent = node.parent;
        return parent.kind === 183 ||
            parent.kind === 192 && parent.operatorToken.kind === 57 && parent.left === node ||
            parent.kind === 192 && parent.operatorToken.kind === 25 && parent.right === node ?
            getReferenceRoot(parent) : node;
    }
    function getTypeOfSwitchClause(clause) {
        if (clause.kind === 253) {
            var caseType = getRegularTypeOfLiteralType(getTypeOfExpression(clause.expression));
            return isUnitType(caseType) ? caseType : undefined;
        }
        return neverType;
    }
    function getSwitchClauseTypes(switchStatement) {
        var links = getNodeLinks(switchStatement);
        if (!links.switchTypes) {
            var types = ts.map(switchStatement.caseBlock.clauses, getTypeOfSwitchClause);
            links.switchTypes = !ts.contains(types, undefined) ? types : emptyArray;
        }
        return links.switchTypes;
    }
    function eachTypeContainedIn(source, types) {
        return source.flags & 65536 ? !ts.forEach(source.types, function (t) { return !ts.contains(types, t); }) : ts.contains(types, source);
    }
    function isTypeSubsetOf(source, target) {
        return source === target || target.flags & 65536 && isTypeSubsetOfUnion(source, target);
    }
    function isTypeSubsetOfUnion(source, target) {
        if (source.flags & 65536) {
            for (var _i = 0, _a = source.types; _i < _a.length; _i++) {
                var t = _a[_i];
                if (!containsType(target.types, t)) {
                    return false;
                }
            }
            return true;
        }
        if (source.flags & 256 && target.flags & 16 && source.baseType === target) {
            return true;
        }
        return containsType(target.types, source);
    }
    function forEachType(type, f) {
        return type.flags & 65536 ? ts.forEach(type.types, f) : f(type);
    }
    function filterType(type, f) {
        if (type.flags & 65536) {
            var types = type.types;
            var filtered = ts.filter(types, f);
            return filtered === types ? type : getUnionTypeFromSortedList(filtered);
        }
        return f(type) ? type : neverType;
    }
    function mapType(type, f) {
        return type.flags & 65536 ? getUnionType(ts.map(type.types, f)) : f(type);
    }
    function extractTypesOfKind(type, kind) {
        return filterType(type, function (t) { return (t.flags & kind) !== 0; });
    }
    function replacePrimitivesWithLiterals(typeWithPrimitives, typeWithLiterals) {
        if (isTypeSubsetOf(stringType, typeWithPrimitives) && maybeTypeOfKind(typeWithLiterals, 32) ||
            isTypeSubsetOf(numberType, typeWithPrimitives) && maybeTypeOfKind(typeWithLiterals, 64)) {
            return mapType(typeWithPrimitives, function (t) {
                return t.flags & 2 ? extractTypesOfKind(typeWithLiterals, 2 | 32) :
                    t.flags & 4 ? extractTypesOfKind(typeWithLiterals, 4 | 64) :
                        t;
            });
        }
        return typeWithPrimitives;
    }
    function isIncomplete(flowType) {
        return flowType.flags === 0;
    }
    function getTypeFromFlowType(flowType) {
        return flowType.flags === 0 ? flowType.type : flowType;
    }
    function createFlowType(type, incomplete) {
        return incomplete ? { flags: 0, type: type } : type;
    }
    function createEvolvingArrayType(elementType) {
        var result = createObjectType(256);
        result.elementType = elementType;
        return result;
    }
    function getEvolvingArrayType(elementType) {
        return evolvingArrayTypes[elementType.id] || (evolvingArrayTypes[elementType.id] = createEvolvingArrayType(elementType));
    }
    function addEvolvingArrayElementType(evolvingArrayType, node) {
        var elementType = getBaseTypeOfLiteralType(getTypeOfExpression(node));
        return isTypeSubsetOf(elementType, evolvingArrayType.elementType) ? evolvingArrayType : getEvolvingArrayType(getUnionType([evolvingArrayType.elementType, elementType]));
    }
    function createFinalArrayType(elementType) {
        return elementType.flags & 8192 ?
            autoArrayType :
            createArrayType(elementType.flags & 65536 ?
                getUnionType(elementType.types, true) :
                elementType);
    }
    function getFinalArrayType(evolvingArrayType) {
        return evolvingArrayType.finalArrayType || (evolvingArrayType.finalArrayType = createFinalArrayType(evolvingArrayType.elementType));
    }
    function finalizeEvolvingArrayType(type) {
        return getObjectFlags(type) & 256 ? getFinalArrayType(type) : type;
    }
    function getElementTypeOfEvolvingArrayType(type) {
        return getObjectFlags(type) & 256 ? type.elementType : neverType;
    }
    function isEvolvingArrayTypeList(types) {
        var hasEvolvingArrayType = false;
        for (var _i = 0, types_12 = types; _i < types_12.length; _i++) {
            var t = types_12[_i];
            if (!(t.flags & 8192)) {
                if (!(getObjectFlags(t) & 256)) {
                    return false;
                }
                hasEvolvingArrayType = true;
            }
        }
        return hasEvolvingArrayType;
    }
    function getUnionOrEvolvingArrayType(types, subtypeReduction) {
        return isEvolvingArrayTypeList(types) ?
            getEvolvingArrayType(getUnionType(ts.map(types, getElementTypeOfEvolvingArrayType))) :
            getUnionType(ts.sameMap(types, finalizeEvolvingArrayType), subtypeReduction);
    }
    function isEvolvingArrayOperationTarget(node) {
        var root = getReferenceRoot(node);
        var parent = root.parent;
        var isLengthPushOrUnshift = parent.kind === 177 && (parent.name.text === "length" ||
            parent.parent.kind === 179 && ts.isPushOrUnshiftIdentifier(parent.name));
        var isElementAssignment = parent.kind === 178 &&
            parent.expression === root &&
            parent.parent.kind === 192 &&
            parent.parent.operatorToken.kind === 57 &&
            parent.parent.left === parent &&
            !ts.isAssignmentTarget(parent.parent) &&
            isTypeAnyOrAllConstituentTypesHaveKind(getTypeOfExpression(parent.argumentExpression), 340 | 2048);
        return isLengthPushOrUnshift || isElementAssignment;
    }
    function maybeTypePredicateCall(node) {
        var links = getNodeLinks(node);
        if (links.maybeTypePredicate === undefined) {
            links.maybeTypePredicate = getMaybeTypePredicate(node);
        }
        return links.maybeTypePredicate;
    }
    function getMaybeTypePredicate(node) {
        if (node.expression.kind !== 96) {
            var funcType = checkNonNullExpression(node.expression);
            if (funcType !== silentNeverType) {
                var apparentType = getApparentType(funcType);
                if (apparentType !== unknownType) {
                    var callSignatures = getSignaturesOfType(apparentType, 0);
                    return !!ts.forEach(callSignatures, function (sig) { return sig.typePredicate; });
                }
            }
        }
        return false;
    }
    function getFlowTypeOfReference(reference, declaredType, assumeInitialized, flowContainer) {
        var key;
        if (!reference.flowNode || assumeInitialized && !(declaredType.flags & 1033215)) {
            return declaredType;
        }
        var initialType = assumeInitialized ? declaredType :
            declaredType === autoType || declaredType === autoArrayType ? undefinedType :
                includeFalsyTypes(declaredType, 2048);
        var visitedFlowStart = visitedFlowCount;
        var evolvedType = getTypeFromFlowType(getTypeAtFlowNode(reference.flowNode));
        visitedFlowCount = visitedFlowStart;
        var resultType = getObjectFlags(evolvedType) & 256 && isEvolvingArrayOperationTarget(reference) ? anyArrayType : finalizeEvolvingArrayType(evolvedType);
        if (reference.parent.kind === 201 && getTypeWithFacts(resultType, 524288).flags & 8192) {
            return declaredType;
        }
        return resultType;
        function getTypeAtFlowNode(flow) {
            while (true) {
                if (flow.flags & 1024) {
                    for (var i = visitedFlowStart; i < visitedFlowCount; i++) {
                        if (visitedFlowNodes[i] === flow) {
                            return visitedFlowTypes[i];
                        }
                    }
                }
                var type = void 0;
                if (flow.flags & 16) {
                    type = getTypeAtFlowAssignment(flow);
                    if (!type) {
                        flow = flow.antecedent;
                        continue;
                    }
                }
                else if (flow.flags & 96) {
                    type = getTypeAtFlowCondition(flow);
                }
                else if (flow.flags & 128) {
                    type = getTypeAtSwitchClause(flow);
                }
                else if (flow.flags & 12) {
                    if (flow.antecedents.length === 1) {
                        flow = flow.antecedents[0];
                        continue;
                    }
                    type = flow.flags & 4 ?
                        getTypeAtFlowBranchLabel(flow) :
                        getTypeAtFlowLoopLabel(flow);
                }
                else if (flow.flags & 256) {
                    type = getTypeAtFlowArrayMutation(flow);
                    if (!type) {
                        flow = flow.antecedent;
                        continue;
                    }
                }
                else if (flow.flags & 2) {
                    var container = flow.container;
                    if (container && container !== flowContainer && reference.kind !== 177) {
                        flow = container.flowNode;
                        continue;
                    }
                    type = initialType;
                }
                else {
                    type = convertAutoToAny(declaredType);
                }
                if (flow.flags & 1024) {
                    visitedFlowNodes[visitedFlowCount] = flow;
                    visitedFlowTypes[visitedFlowCount] = type;
                    visitedFlowCount++;
                }
                return type;
            }
        }
        function getTypeAtFlowAssignment(flow) {
            var node = flow.node;
            if (isMatchingReference(reference, node)) {
                if (ts.getAssignmentTargetKind(node) === 2) {
                    var flowType = getTypeAtFlowNode(flow.antecedent);
                    return createFlowType(getBaseTypeOfLiteralType(getTypeFromFlowType(flowType)), isIncomplete(flowType));
                }
                if (declaredType === autoType || declaredType === autoArrayType) {
                    if (isEmptyArrayAssignment(node)) {
                        return getEvolvingArrayType(neverType);
                    }
                    var assignedType = getBaseTypeOfLiteralType(getInitialOrAssignedType(node));
                    return isTypeAssignableTo(assignedType, declaredType) ? assignedType : anyArrayType;
                }
                if (declaredType.flags & 65536) {
                    return getAssignmentReducedType(declaredType, getInitialOrAssignedType(node));
                }
                return declaredType;
            }
            if (containsMatchingReference(reference, node)) {
                return declaredType;
            }
            return undefined;
        }
        function getTypeAtFlowArrayMutation(flow) {
            var node = flow.node;
            var expr = node.kind === 179 ?
                node.expression.expression :
                node.left.expression;
            if (isMatchingReference(reference, getReferenceCandidate(expr))) {
                var flowType = getTypeAtFlowNode(flow.antecedent);
                var type = getTypeFromFlowType(flowType);
                if (getObjectFlags(type) & 256) {
                    var evolvedType_1 = type;
                    if (node.kind === 179) {
                        for (var _i = 0, _a = node.arguments; _i < _a.length; _i++) {
                            var arg = _a[_i];
                            evolvedType_1 = addEvolvingArrayElementType(evolvedType_1, arg);
                        }
                    }
                    else {
                        var indexType = getTypeOfExpression(node.left.argumentExpression);
                        if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 340 | 2048)) {
                            evolvedType_1 = addEvolvingArrayElementType(evolvedType_1, node.right);
                        }
                    }
                    return evolvedType_1 === type ? flowType : createFlowType(evolvedType_1, isIncomplete(flowType));
                }
                return flowType;
            }
            return undefined;
        }
        function getTypeAtFlowCondition(flow) {
            var flowType = getTypeAtFlowNode(flow.antecedent);
            var type = getTypeFromFlowType(flowType);
            if (type.flags & 8192) {
                return flowType;
            }
            var assumeTrue = (flow.flags & 32) !== 0;
            var nonEvolvingType = finalizeEvolvingArrayType(type);
            var narrowedType = narrowType(nonEvolvingType, flow.expression, assumeTrue);
            if (narrowedType === nonEvolvingType) {
                return flowType;
            }
            var incomplete = isIncomplete(flowType);
            var resultType = incomplete && narrowedType.flags & 8192 ? silentNeverType : narrowedType;
            return createFlowType(resultType, incomplete);
        }
        function getTypeAtSwitchClause(flow) {
            var flowType = getTypeAtFlowNode(flow.antecedent);
            var type = getTypeFromFlowType(flowType);
            var expr = flow.switchStatement.expression;
            if (isMatchingReference(reference, expr)) {
                type = narrowTypeBySwitchOnDiscriminant(type, flow.switchStatement, flow.clauseStart, flow.clauseEnd);
            }
            else if (isMatchingReferenceDiscriminant(expr)) {
                type = narrowTypeByDiscriminant(type, expr, function (t) { return narrowTypeBySwitchOnDiscriminant(t, flow.switchStatement, flow.clauseStart, flow.clauseEnd); });
            }
            return createFlowType(type, isIncomplete(flowType));
        }
        function getTypeAtFlowBranchLabel(flow) {
            var antecedentTypes = [];
            var subtypeReduction = false;
            var seenIncomplete = false;
            for (var _i = 0, _a = flow.antecedents; _i < _a.length; _i++) {
                var antecedent = _a[_i];
                var flowType = getTypeAtFlowNode(antecedent);
                var type = getTypeFromFlowType(flowType);
                if (type === declaredType && declaredType === initialType) {
                    return type;
                }
                if (!ts.contains(antecedentTypes, type)) {
                    antecedentTypes.push(type);
                }
                if (!isTypeSubsetOf(type, declaredType)) {
                    subtypeReduction = true;
                }
                if (isIncomplete(flowType)) {
                    seenIncomplete = true;
                }
            }
            return createFlowType(getUnionOrEvolvingArrayType(antecedentTypes, subtypeReduction), seenIncomplete);
        }
        function getTypeAtFlowLoopLabel(flow) {
            var id = getFlowNodeId(flow);
            var cache = flowLoopCaches[id] || (flowLoopCaches[id] = ts.createMap());
            if (!key) {
                key = getFlowCacheKey(reference);
            }
            if (cache[key]) {
                return cache[key];
            }
            for (var i = flowLoopStart; i < flowLoopCount; i++) {
                if (flowLoopNodes[i] === flow && flowLoopKeys[i] === key && flowLoopTypes[i].length) {
                    return createFlowType(getUnionOrEvolvingArrayType(flowLoopTypes[i], false), true);
                }
            }
            var antecedentTypes = [];
            var subtypeReduction = false;
            var firstAntecedentType;
            flowLoopNodes[flowLoopCount] = flow;
            flowLoopKeys[flowLoopCount] = key;
            flowLoopTypes[flowLoopCount] = antecedentTypes;
            for (var _i = 0, _a = flow.antecedents; _i < _a.length; _i++) {
                var antecedent = _a[_i];
                flowLoopCount++;
                var flowType = getTypeAtFlowNode(antecedent);
                flowLoopCount--;
                if (!firstAntecedentType) {
                    firstAntecedentType = flowType;
                }
                var type = getTypeFromFlowType(flowType);
                if (cache[key]) {
                    return cache[key];
                }
                if (!ts.contains(antecedentTypes, type)) {
                    antecedentTypes.push(type);
                }
                if (!isTypeSubsetOf(type, declaredType)) {
                    subtypeReduction = true;
                }
                if (type === declaredType) {
                    break;
                }
            }
            var result = getUnionOrEvolvingArrayType(antecedentTypes, subtypeReduction);
            if (isIncomplete(firstAntecedentType)) {
                return createFlowType(result, true);
            }
            return cache[key] = result;
        }
        function isMatchingReferenceDiscriminant(expr) {
            return expr.kind === 177 &&
                declaredType.flags & 65536 &&
                isMatchingReference(reference, expr.expression) &&
                isDiscriminantProperty(declaredType, expr.name.text);
        }
        function narrowTypeByDiscriminant(type, propAccess, narrowType) {
            var propName = propAccess.name.text;
            var propType = getTypeOfPropertyOfType(type, propName);
            var narrowedPropType = propType && narrowType(propType);
            return propType === narrowedPropType ? type : filterType(type, function (t) { return isTypeComparableTo(getTypeOfPropertyOfType(t, propName), narrowedPropType); });
        }
        function narrowTypeByTruthiness(type, expr, assumeTrue) {
            if (isMatchingReference(reference, expr)) {
                return getTypeWithFacts(type, assumeTrue ? 1048576 : 2097152);
            }
            if (isMatchingReferenceDiscriminant(expr)) {
                return narrowTypeByDiscriminant(type, expr, function (t) { return getTypeWithFacts(t, assumeTrue ? 1048576 : 2097152); });
            }
            if (containsMatchingReferenceDiscriminant(reference, expr)) {
                return declaredType;
            }
            return type;
        }
        function narrowTypeByBinaryExpression(type, expr, assumeTrue) {
            switch (expr.operatorToken.kind) {
                case 57:
                    return narrowTypeByTruthiness(type, expr.left, assumeTrue);
                case 31:
                case 32:
                case 33:
                case 34:
                    var operator_1 = expr.operatorToken.kind;
                    var left_1 = getReferenceCandidate(expr.left);
                    var right_1 = getReferenceCandidate(expr.right);
                    if (left_1.kind === 187 && right_1.kind === 9) {
                        return narrowTypeByTypeof(type, left_1, operator_1, right_1, assumeTrue);
                    }
                    if (right_1.kind === 187 && left_1.kind === 9) {
                        return narrowTypeByTypeof(type, right_1, operator_1, left_1, assumeTrue);
                    }
                    if (isMatchingReference(reference, left_1)) {
                        return narrowTypeByEquality(type, operator_1, right_1, assumeTrue);
                    }
                    if (isMatchingReference(reference, right_1)) {
                        return narrowTypeByEquality(type, operator_1, left_1, assumeTrue);
                    }
                    if (isMatchingReferenceDiscriminant(left_1)) {
                        return narrowTypeByDiscriminant(type, left_1, function (t) { return narrowTypeByEquality(t, operator_1, right_1, assumeTrue); });
                    }
                    if (isMatchingReferenceDiscriminant(right_1)) {
                        return narrowTypeByDiscriminant(type, right_1, function (t) { return narrowTypeByEquality(t, operator_1, left_1, assumeTrue); });
                    }
                    if (containsMatchingReferenceDiscriminant(reference, left_1) || containsMatchingReferenceDiscriminant(reference, right_1)) {
                        return declaredType;
                    }
                    break;
                case 92:
                    return narrowTypeByInstanceof(type, expr, assumeTrue);
                case 25:
                    return narrowType(type, expr.right, assumeTrue);
            }
            return type;
        }
        function narrowTypeByEquality(type, operator, value, assumeTrue) {
            if (type.flags & 1) {
                return type;
            }
            if (operator === 32 || operator === 34) {
                assumeTrue = !assumeTrue;
            }
            var valueType = getTypeOfExpression(value);
            if (valueType.flags & 6144) {
                if (!strictNullChecks) {
                    return type;
                }
                var doubleEquals = operator === 31 || operator === 32;
                var facts = doubleEquals ?
                    assumeTrue ? 65536 : 524288 :
                    value.kind === 94 ?
                        assumeTrue ? 32768 : 262144 :
                        assumeTrue ? 16384 : 131072;
                return getTypeWithFacts(type, facts);
            }
            if (type.flags & 33281) {
                return type;
            }
            if (assumeTrue) {
                var narrowedType = filterType(type, function (t) { return areTypesComparable(t, valueType); });
                return narrowedType.flags & 8192 ? type : replacePrimitivesWithLiterals(narrowedType, valueType);
            }
            if (isUnitType(valueType)) {
                var regularType_1 = getRegularTypeOfLiteralType(valueType);
                return filterType(type, function (t) { return getRegularTypeOfLiteralType(t) !== regularType_1; });
            }
            return type;
        }
        function narrowTypeByTypeof(type, typeOfExpr, operator, literal, assumeTrue) {
            var target = getReferenceCandidate(typeOfExpr.expression);
            if (!isMatchingReference(reference, target)) {
                if (containsMatchingReference(reference, target)) {
                    return declaredType;
                }
                return type;
            }
            if (operator === 32 || operator === 34) {
                assumeTrue = !assumeTrue;
            }
            if (assumeTrue && !(type.flags & 65536)) {
                var targetType = typeofTypesByName[literal.text];
                if (targetType && isTypeSubtypeOf(targetType, type)) {
                    return targetType;
                }
            }
            var facts = assumeTrue ?
                typeofEQFacts[literal.text] || 64 :
                typeofNEFacts[literal.text] || 8192;
            return getTypeWithFacts(type, facts);
        }
        function narrowTypeBySwitchOnDiscriminant(type, switchStatement, clauseStart, clauseEnd) {
            var switchTypes = getSwitchClauseTypes(switchStatement);
            if (!switchTypes.length) {
                return type;
            }
            var clauseTypes = switchTypes.slice(clauseStart, clauseEnd);
            var hasDefaultClause = clauseStart === clauseEnd || ts.contains(clauseTypes, neverType);
            var discriminantType = getUnionType(clauseTypes);
            var caseType = discriminantType.flags & 8192 ? neverType :
                replacePrimitivesWithLiterals(filterType(type, function (t) { return isTypeComparableTo(discriminantType, t); }), discriminantType);
            if (!hasDefaultClause) {
                return caseType;
            }
            var defaultType = filterType(type, function (t) { return !(isUnitType(t) && ts.contains(switchTypes, getRegularTypeOfLiteralType(t))); });
            return caseType.flags & 8192 ? defaultType : getUnionType([caseType, defaultType]);
        }
        function narrowTypeByInstanceof(type, expr, assumeTrue) {
            var left = getReferenceCandidate(expr.left);
            if (!isMatchingReference(reference, left)) {
                if (containsMatchingReference(reference, left)) {
                    return declaredType;
                }
                return type;
            }
            var rightType = getTypeOfExpression(expr.right);
            if (!isTypeSubtypeOf(rightType, globalFunctionType)) {
                return type;
            }
            var targetType;
            var prototypeProperty = getPropertyOfType(rightType, "prototype");
            if (prototypeProperty) {
                var prototypePropertyType = getTypeOfSymbol(prototypeProperty);
                if (!isTypeAny(prototypePropertyType)) {
                    targetType = prototypePropertyType;
                }
            }
            if (isTypeAny(type) && (targetType === globalObjectType || targetType === globalFunctionType)) {
                return type;
            }
            if (!targetType) {
                var constructSignatures = void 0;
                if (getObjectFlags(rightType) & 2) {
                    constructSignatures = resolveDeclaredMembers(rightType).declaredConstructSignatures;
                }
                else if (getObjectFlags(rightType) & 16) {
                    constructSignatures = getSignaturesOfType(rightType, 1);
                }
                if (constructSignatures && constructSignatures.length) {
                    targetType = getUnionType(ts.map(constructSignatures, function (signature) { return getReturnTypeOfSignature(getErasedSignature(signature)); }));
                }
            }
            if (targetType) {
                return getNarrowedType(type, targetType, assumeTrue, isTypeInstanceOf);
            }
            return type;
        }
        function getNarrowedType(type, candidate, assumeTrue, isRelated) {
            if (!assumeTrue) {
                return filterType(type, function (t) { return !isRelated(t, candidate); });
            }
            if (type.flags & 65536) {
                var assignableType = filterType(type, function (t) { return isRelated(t, candidate); });
                if (!(assignableType.flags & 8192)) {
                    return assignableType;
                }
            }
            var targetType = type.flags & 16384 ? getApparentType(type) : type;
            return isTypeSubtypeOf(candidate, type) ? candidate :
                isTypeAssignableTo(type, candidate) ? type :
                    isTypeAssignableTo(candidate, targetType) ? candidate :
                        getIntersectionType([type, candidate]);
        }
        function narrowTypeByTypePredicate(type, callExpression, assumeTrue) {
            if (!hasMatchingArgument(callExpression, reference) || !maybeTypePredicateCall(callExpression)) {
                return type;
            }
            var signature = getResolvedSignature(callExpression);
            var predicate = signature.typePredicate;
            if (!predicate) {
                return type;
            }
            if (isTypeAny(type) && (predicate.type === globalObjectType || predicate.type === globalFunctionType)) {
                return type;
            }
            if (ts.isIdentifierTypePredicate(predicate)) {
                var predicateArgument = callExpression.arguments[predicate.parameterIndex];
                if (predicateArgument) {
                    if (isMatchingReference(reference, predicateArgument)) {
                        return getNarrowedType(type, predicate.type, assumeTrue, isTypeSubtypeOf);
                    }
                    if (containsMatchingReference(reference, predicateArgument)) {
                        return declaredType;
                    }
                }
            }
            else {
                var invokedExpression = ts.skipParentheses(callExpression.expression);
                if (invokedExpression.kind === 178 || invokedExpression.kind === 177) {
                    var accessExpression = invokedExpression;
                    var possibleReference = ts.skipParentheses(accessExpression.expression);
                    if (isMatchingReference(reference, possibleReference)) {
                        return getNarrowedType(type, predicate.type, assumeTrue, isTypeSubtypeOf);
                    }
                    if (containsMatchingReference(reference, possibleReference)) {
                        return declaredType;
                    }
                }
            }
            return type;
        }
        function narrowType(type, expr, assumeTrue) {
            switch (expr.kind) {
                case 70:
                case 98:
                case 177:
                    return narrowTypeByTruthiness(type, expr, assumeTrue);
                case 179:
                    return narrowTypeByTypePredicate(type, expr, assumeTrue);
                case 183:
                    return narrowType(type, expr.expression, assumeTrue);
                case 192:
                    return narrowTypeByBinaryExpression(type, expr, assumeTrue);
                case 190:
                    if (expr.operator === 50) {
                        return narrowType(type, expr.operand, !assumeTrue);
                    }
                    break;
            }
            return type;
        }
    }
    function getTypeOfSymbolAtLocation(symbol, location) {
        if (location.kind === 70) {
            if (ts.isRightSideOfQualifiedNameOrPropertyAccess(location)) {
                location = location.parent;
            }
            if (ts.isPartOfExpression(location) && !ts.isAssignmentTarget(location)) {
                var type = getTypeOfExpression(location);
                if (getExportSymbolOfValueSymbolIfExported(getNodeLinks(location).resolvedSymbol) === symbol) {
                    return type;
                }
            }
        }
        return getTypeOfSymbol(symbol);
    }
    function getControlFlowContainer(node) {
        while (true) {
            node = node.parent;
            if (ts.isFunctionLike(node) && !ts.getImmediatelyInvokedFunctionExpression(node) ||
                node.kind === 231 ||
                node.kind === 261 ||
                node.kind === 147) {
                return node;
            }
        }
    }
    function isParameterAssigned(symbol) {
        var func = ts.getRootDeclaration(symbol.valueDeclaration).parent;
        var links = getNodeLinks(func);
        if (!(links.flags & 4194304)) {
            links.flags |= 4194304;
            if (!hasParentWithAssignmentsMarked(func)) {
                markParameterAssignments(func);
            }
        }
        return symbol.isAssigned || false;
    }
    function hasParentWithAssignmentsMarked(node) {
        while (true) {
            node = node.parent;
            if (!node) {
                return false;
            }
            if (ts.isFunctionLike(node) && getNodeLinks(node).flags & 4194304) {
                return true;
            }
        }
    }
    function markParameterAssignments(node) {
        if (node.kind === 70) {
            if (ts.isAssignmentTarget(node)) {
                var symbol = getResolvedSymbol(node);
                if (symbol.valueDeclaration && ts.getRootDeclaration(symbol.valueDeclaration).kind === 144) {
                    symbol.isAssigned = true;
                }
            }
        }
        else {
            ts.forEachChild(node, markParameterAssignments);
        }
    }
    function isConstVariable(symbol) {
        return symbol.flags & 3 && (getDeclarationNodeFlagsFromSymbol(symbol) & 2) !== 0 && getTypeOfSymbol(symbol) !== autoArrayType;
    }
    function checkIdentifier(node) {
        var symbol = getResolvedSymbol(node);
        if (symbol === unknownSymbol) {
            return unknownType;
        }
        if (symbol === argumentsSymbol) {
            var container = ts.getContainingFunction(node);
            if (languageVersion < 2) {
                if (container.kind === 185) {
                    error(node, ts.Diagnostics.The_arguments_object_cannot_be_referenced_in_an_arrow_function_in_ES3_and_ES5_Consider_using_a_standard_function_expression);
                }
                else if (ts.hasModifier(container, 256)) {
                    error(node, ts.Diagnostics.The_arguments_object_cannot_be_referenced_in_an_async_function_or_method_in_ES3_and_ES5_Consider_using_a_standard_function_or_method);
                }
            }
            if (node.flags & 16384) {
                getNodeLinks(container).flags |= 8192;
            }
            return getTypeOfSymbol(symbol);
        }
        if (symbol.flags & 8388608 && !isInTypeQuery(node) && !isConstEnumOrConstEnumOnlyModule(resolveAlias(symbol))) {
            markAliasSymbolAsReferenced(symbol);
        }
        var localOrExportSymbol = getExportSymbolOfValueSymbolIfExported(symbol);
        if (localOrExportSymbol.flags & 32) {
            var declaration_1 = localOrExportSymbol.valueDeclaration;
            if (declaration_1.kind === 226
                && ts.nodeIsDecorated(declaration_1)) {
                var container = ts.getContainingClass(node);
                while (container !== undefined) {
                    if (container === declaration_1 && container.name !== node) {
                        getNodeLinks(declaration_1).flags |= 8388608;
                        getNodeLinks(node).flags |= 16777216;
                        break;
                    }
                    container = ts.getContainingClass(container);
                }
            }
            else if (declaration_1.kind === 197) {
                var container = ts.getThisContainer(node, false);
                while (container !== undefined) {
                    if (container.parent === declaration_1) {
                        if (container.kind === 147 && ts.hasModifier(container, 32)) {
                            getNodeLinks(declaration_1).flags |= 8388608;
                            getNodeLinks(node).flags |= 16777216;
                        }
                        break;
                    }
                    container = ts.getThisContainer(container, false);
                }
            }
        }
        checkCollisionWithCapturedSuperVariable(node, node);
        checkCollisionWithCapturedThisVariable(node, node);
        checkNestedBlockScopedBinding(node, symbol);
        var type = getTypeOfSymbol(localOrExportSymbol);
        var declaration = localOrExportSymbol.valueDeclaration;
        var assignmentKind = ts.getAssignmentTargetKind(node);
        if (assignmentKind) {
            if (!(localOrExportSymbol.flags & 3)) {
                error(node, ts.Diagnostics.Cannot_assign_to_0_because_it_is_not_a_variable, symbolToString(symbol));
                return unknownType;
            }
            if (isReadonlySymbol(localOrExportSymbol)) {
                error(node, ts.Diagnostics.Cannot_assign_to_0_because_it_is_a_constant_or_a_read_only_property, symbolToString(symbol));
                return unknownType;
            }
        }
        if (!(localOrExportSymbol.flags & 3) || assignmentKind === 1 || !declaration) {
            return type;
        }
        var isParameter = ts.getRootDeclaration(declaration).kind === 144;
        var declarationContainer = getControlFlowContainer(declaration);
        var flowContainer = getControlFlowContainer(node);
        var isOuterVariable = flowContainer !== declarationContainer;
        while (flowContainer !== declarationContainer && (flowContainer.kind === 184 ||
            flowContainer.kind === 185 || ts.isObjectLiteralOrClassExpressionMethod(flowContainer)) &&
            (isConstVariable(localOrExportSymbol) || isParameter && !isParameterAssigned(localOrExportSymbol))) {
            flowContainer = getControlFlowContainer(flowContainer);
        }
        var assumeInitialized = isParameter || isOuterVariable ||
            type !== autoType && type !== autoArrayType && (!strictNullChecks || (type.flags & 1) !== 0) ||
            ts.isInAmbientContext(declaration);
        var flowType = getFlowTypeOfReference(node, type, assumeInitialized, flowContainer);
        if (type === autoType || type === autoArrayType) {
            if (flowType === autoType || flowType === autoArrayType) {
                if (compilerOptions.noImplicitAny) {
                    error(declaration.name, ts.Diagnostics.Variable_0_implicitly_has_type_1_in_some_locations_where_its_type_cannot_be_determined, symbolToString(symbol), typeToString(flowType));
                    error(node, ts.Diagnostics.Variable_0_implicitly_has_an_1_type, symbolToString(symbol), typeToString(flowType));
                }
                return convertAutoToAny(flowType);
            }
        }
        else if (!assumeInitialized && !(getFalsyFlags(type) & 2048) && getFalsyFlags(flowType) & 2048) {
            error(node, ts.Diagnostics.Variable_0_is_used_before_being_assigned, symbolToString(symbol));
            return type;
        }
        return assignmentKind ? getBaseTypeOfLiteralType(flowType) : flowType;
    }
    function isInsideFunction(node, threshold) {
        var current = node;
        while (current && current !== threshold) {
            if (ts.isFunctionLike(current)) {
                return true;
            }
            current = current.parent;
        }
        return false;
    }
    function checkNestedBlockScopedBinding(node, symbol) {
        if (languageVersion >= 2 ||
            (symbol.flags & (2 | 32)) === 0 ||
            symbol.valueDeclaration.parent.kind === 256) {
            return;
        }
        var container = ts.getEnclosingBlockScopeContainer(symbol.valueDeclaration);
        var usedInFunction = isInsideFunction(node.parent, container);
        var current = container;
        var containedInIterationStatement = false;
        while (current && !ts.nodeStartsNewLexicalEnvironment(current)) {
            if (ts.isIterationStatement(current, false)) {
                containedInIterationStatement = true;
                break;
            }
            current = current.parent;
        }
        if (containedInIterationStatement) {
            if (usedInFunction) {
                getNodeLinks(current).flags |= 65536;
            }
            if (container.kind === 211 &&
                ts.getAncestor(symbol.valueDeclaration, 224).parent === container &&
                isAssignedInBodyOfForStatement(node, container)) {
                getNodeLinks(symbol.valueDeclaration).flags |= 2097152;
            }
            getNodeLinks(symbol.valueDeclaration).flags |= 262144;
        }
        if (usedInFunction) {
            getNodeLinks(symbol.valueDeclaration).flags |= 131072;
        }
    }
    function isAssignedInBodyOfForStatement(node, container) {
        var current = node;
        while (current.parent.kind === 183) {
            current = current.parent;
        }
        var isAssigned = false;
        if (ts.isAssignmentTarget(current)) {
            isAssigned = true;
        }
        else if ((current.parent.kind === 190 || current.parent.kind === 191)) {
            var expr = current.parent;
            isAssigned = expr.operator === 42 || expr.operator === 43;
        }
        if (!isAssigned) {
            return false;
        }
        while (current !== container) {
            if (current === container.statement) {
                return true;
            }
            else {
                current = current.parent;
            }
        }
        return false;
    }
    function captureLexicalThis(node, container) {
        getNodeLinks(node).flags |= 2;
        if (container.kind === 147 || container.kind === 150) {
            var classNode = container.parent;
            getNodeLinks(classNode).flags |= 4;
        }
        else {
            getNodeLinks(container).flags |= 4;
        }
    }
    function findFirstSuperCall(n) {
        if (ts.isSuperCall(n)) {
            return n;
        }
        else if (ts.isFunctionLike(n)) {
            return undefined;
        }
        return ts.forEachChild(n, findFirstSuperCall);
    }
    function getSuperCallInConstructor(constructor) {
        var links = getNodeLinks(constructor);
        if (links.hasSuperCall === undefined) {
            links.superCall = findFirstSuperCall(constructor.body);
            links.hasSuperCall = links.superCall ? true : false;
        }
        return links.superCall;
    }
    function classDeclarationExtendsNull(classDecl) {
        var classSymbol = getSymbolOfNode(classDecl);
        var classInstanceType = getDeclaredTypeOfSymbol(classSymbol);
        var baseConstructorType = getBaseConstructorTypeOfClass(classInstanceType);
        return baseConstructorType === nullWideningType;
    }
    function checkThisBeforeSuper(node, container, diagnosticMessage) {
        var containingClassDecl = container.parent;
        var baseTypeNode = ts.getClassExtendsHeritageClauseElement(containingClassDecl);
        if (baseTypeNode && !classDeclarationExtendsNull(containingClassDecl)) {
            var superCall = getSuperCallInConstructor(container);
            if (!superCall || superCall.end > node.pos) {
                error(node, diagnosticMessage);
            }
        }
    }
    function checkThisExpression(node) {
        var container = ts.getThisContainer(node, true);
        var needToCaptureLexicalThis = false;
        if (container.kind === 150) {
            checkThisBeforeSuper(node, container, ts.Diagnostics.super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class);
        }
        if (container.kind === 185) {
            container = ts.getThisContainer(container, false);
            needToCaptureLexicalThis = (languageVersion < 2);
        }
        switch (container.kind) {
            case 230:
                error(node, ts.Diagnostics.this_cannot_be_referenced_in_a_module_or_namespace_body);
                break;
            case 229:
                error(node, ts.Diagnostics.this_cannot_be_referenced_in_current_location);
                break;
            case 150:
                if (isInConstructorArgumentInitializer(node, container)) {
                    error(node, ts.Diagnostics.this_cannot_be_referenced_in_constructor_arguments);
                }
                break;
            case 147:
            case 146:
                if (ts.getModifierFlags(container) & 32) {
                    error(node, ts.Diagnostics.this_cannot_be_referenced_in_a_static_property_initializer);
                }
                break;
            case 142:
                error(node, ts.Diagnostics.this_cannot_be_referenced_in_a_computed_property_name);
                break;
        }
        if (needToCaptureLexicalThis) {
            captureLexicalThis(node, container);
        }
        if (ts.isFunctionLike(container) &&
            (!isInParameterInitializerBeforeContainingFunction(node) || ts.getThisParameter(container))) {
            if (container.kind === 184 &&
                ts.isInJavaScriptFile(container.parent) &&
                ts.getSpecialPropertyAssignmentKind(container.parent) === 3) {
                var className = container.parent
                    .left
                    .expression
                    .expression;
                var classSymbol = checkExpression(className).symbol;
                if (classSymbol && classSymbol.members && (classSymbol.flags & 16)) {
                    return getInferredClassType(classSymbol);
                }
            }
            var thisType = getThisTypeOfDeclaration(container) || getContextualThisParameterType(container);
            if (thisType) {
                return thisType;
            }
        }
        if (ts.isClassLike(container.parent)) {
            var symbol = getSymbolOfNode(container.parent);
            var type = ts.hasModifier(container, 32) ? getTypeOfSymbol(symbol) : getDeclaredTypeOfSymbol(symbol).thisType;
            return getFlowTypeOfReference(node, type, true, undefined);
        }
        if (ts.isInJavaScriptFile(node)) {
            var type = getTypeForThisExpressionFromJSDoc(container);
            if (type && type !== unknownType) {
                return type;
            }
        }
        if (compilerOptions.noImplicitThis) {
            error(node, ts.Diagnostics.this_implicitly_has_type_any_because_it_does_not_have_a_type_annotation);
        }
        return anyType;
    }
    function getTypeForThisExpressionFromJSDoc(node) {
        var jsdocType = ts.getJSDocType(node);
        if (jsdocType && jsdocType.kind === 274) {
            var jsDocFunctionType = jsdocType;
            if (jsDocFunctionType.parameters.length > 0 && jsDocFunctionType.parameters[0].type.kind === 277) {
                return getTypeFromTypeNode(jsDocFunctionType.parameters[0].type);
            }
        }
    }
    function isInConstructorArgumentInitializer(node, constructorDecl) {
        for (var n = node; n && n !== constructorDecl; n = n.parent) {
            if (n.kind === 144) {
                return true;
            }
        }
        return false;
    }
    function checkSuperExpression(node) {
        var isCallExpression = node.parent.kind === 179 && node.parent.expression === node;
        var container = ts.getSuperContainer(node, true);
        var needToCaptureLexicalThis = false;
        if (!isCallExpression) {
            while (container && container.kind === 185) {
                container = ts.getSuperContainer(container, true);
                needToCaptureLexicalThis = languageVersion < 2;
            }
        }
        var canUseSuperExpression = isLegalUsageOfSuperExpression(container);
        var nodeCheckFlag = 0;
        if (!canUseSuperExpression) {
            var current = node;
            while (current && current !== container && current.kind !== 142) {
                current = current.parent;
            }
            if (current && current.kind === 142) {
                error(node, ts.Diagnostics.super_cannot_be_referenced_in_a_computed_property_name);
            }
            else if (isCallExpression) {
                error(node, ts.Diagnostics.Super_calls_are_not_permitted_outside_constructors_or_in_nested_functions_inside_constructors);
            }
            else if (!container || !container.parent || !(ts.isClassLike(container.parent) || container.parent.kind === 176)) {
                error(node, ts.Diagnostics.super_can_only_be_referenced_in_members_of_derived_classes_or_object_literal_expressions);
            }
            else {
                error(node, ts.Diagnostics.super_property_access_is_permitted_only_in_a_constructor_member_function_or_member_accessor_of_a_derived_class);
            }
            return unknownType;
        }
        if (!isCallExpression && container.kind === 150) {
            checkThisBeforeSuper(node, container, ts.Diagnostics.super_must_be_called_before_accessing_a_property_of_super_in_the_constructor_of_a_derived_class);
        }
        if ((ts.getModifierFlags(container) & 32) || isCallExpression) {
            nodeCheckFlag = 512;
        }
        else {
            nodeCheckFlag = 256;
        }
        getNodeLinks(node).flags |= nodeCheckFlag;
        if (container.kind === 149 && ts.getModifierFlags(container) & 256) {
            if (ts.isSuperProperty(node.parent) && ts.isAssignmentTarget(node.parent)) {
                getNodeLinks(container).flags |= 4096;
            }
            else {
                getNodeLinks(container).flags |= 2048;
            }
        }
        if (needToCaptureLexicalThis) {
            captureLexicalThis(node.parent, container);
        }
        if (container.parent.kind === 176) {
            if (languageVersion < 2) {
                error(node, ts.Diagnostics.super_is_only_allowed_in_members_of_object_literal_expressions_when_option_target_is_ES2015_or_higher);
                return unknownType;
            }
            else {
                return anyType;
            }
        }
        var classLikeDeclaration = container.parent;
        var classType = getDeclaredTypeOfSymbol(getSymbolOfNode(classLikeDeclaration));
        var baseClassType = classType && getBaseTypes(classType)[0];
        if (!baseClassType) {
            if (!ts.getClassExtendsHeritageClauseElement(classLikeDeclaration)) {
                error(node, ts.Diagnostics.super_can_only_be_referenced_in_a_derived_class);
            }
            return unknownType;
        }
        if (container.kind === 150 && isInConstructorArgumentInitializer(node, container)) {
            error(node, ts.Diagnostics.super_cannot_be_referenced_in_constructor_arguments);
            return unknownType;
        }
        return nodeCheckFlag === 512
            ? getBaseConstructorTypeOfClass(classType)
            : getTypeWithThisArgument(baseClassType, classType.thisType);
        function isLegalUsageOfSuperExpression(container) {
            if (!container) {
                return false;
            }
            if (isCallExpression) {
                return container.kind === 150;
            }
            else {
                if (ts.isClassLike(container.parent) || container.parent.kind === 176) {
                    if (ts.getModifierFlags(container) & 32) {
                        return container.kind === 149 ||
                            container.kind === 148 ||
                            container.kind === 151 ||
                            container.kind === 152;
                    }
                    else {
                        return container.kind === 149 ||
                            container.kind === 148 ||
                            container.kind === 151 ||
                            container.kind === 152 ||
                            container.kind === 147 ||
                            container.kind === 146 ||
                            container.kind === 150;
                    }
                }
            }
            return false;
        }
    }
    function getContextualThisParameterType(func) {
        if (isContextSensitiveFunctionOrObjectLiteralMethod(func) && func.kind !== 185) {
            var contextualSignature = getContextualSignature(func);
            if (contextualSignature) {
                var thisParameter = contextualSignature.thisParameter;
                if (thisParameter) {
                    return getTypeOfSymbol(thisParameter);
                }
            }
        }
        return undefined;
    }
    function getContextuallyTypedParameterType(parameter) {
        var func = parameter.parent;
        if (isContextSensitiveFunctionOrObjectLiteralMethod(func)) {
            var iife = ts.getImmediatelyInvokedFunctionExpression(func);
            if (iife) {
                var indexOfParameter = ts.indexOf(func.parameters, parameter);
                if (iife.arguments && indexOfParameter < iife.arguments.length) {
                    if (parameter.dotDotDotToken) {
                        var restTypes = [];
                        for (var i = indexOfParameter; i < iife.arguments.length; i++) {
                            restTypes.push(getWidenedLiteralType(checkExpression(iife.arguments[i])));
                        }
                        return createArrayType(getUnionType(restTypes));
                    }
                    var links = getNodeLinks(iife);
                    var cached = links.resolvedSignature;
                    links.resolvedSignature = anySignature;
                    var type = getWidenedLiteralType(checkExpression(iife.arguments[indexOfParameter]));
                    links.resolvedSignature = cached;
                    return type;
                }
            }
            var contextualSignature = getContextualSignature(func);
            if (contextualSignature) {
                var funcHasRestParameters = ts.hasRestParameter(func);
                var len = func.parameters.length - (funcHasRestParameters ? 1 : 0);
                var indexOfParameter = ts.indexOf(func.parameters, parameter);
                if (indexOfParameter < len) {
                    return getTypeAtPosition(contextualSignature, indexOfParameter);
                }
                if (funcHasRestParameters &&
                    indexOfParameter === (func.parameters.length - 1) &&
                    isRestParameterIndex(contextualSignature, func.parameters.length - 1)) {
                    return getTypeOfSymbol(ts.lastOrUndefined(contextualSignature.parameters));
                }
            }
        }
        return undefined;
    }
    function getContextualTypeForInitializerExpression(node) {
        var declaration = node.parent;
        if (node === declaration.initializer) {
            if (declaration.type) {
                return getTypeFromTypeNode(declaration.type);
            }
            if (declaration.kind === 144) {
                var type = getContextuallyTypedParameterType(declaration);
                if (type) {
                    return type;
                }
            }
            if (ts.isBindingPattern(declaration.name)) {
                return getTypeFromBindingPattern(declaration.name, true, false);
            }
            if (ts.isBindingPattern(declaration.parent)) {
                var parentDeclaration = declaration.parent.parent;
                var name_19 = declaration.propertyName || declaration.name;
                if (ts.isVariableLike(parentDeclaration) &&
                    parentDeclaration.type &&
                    !ts.isBindingPattern(name_19)) {
                    var text = ts.getTextOfPropertyName(name_19);
                    if (text) {
                        return getTypeOfPropertyOfType(getTypeFromTypeNode(parentDeclaration.type), text);
                    }
                }
            }
        }
        return undefined;
    }
    function getContextualTypeForReturnExpression(node) {
        var func = ts.getContainingFunction(node);
        if (ts.isAsyncFunctionLike(func)) {
            var contextualReturnType = getContextualReturnType(func);
            if (contextualReturnType) {
                return getPromisedType(contextualReturnType);
            }
            return undefined;
        }
        if (func && !func.asteriskToken) {
            return getContextualReturnType(func);
        }
        return undefined;
    }
    function getContextualTypeForYieldOperand(node) {
        var func = ts.getContainingFunction(node);
        if (func) {
            var contextualReturnType = getContextualReturnType(func);
            if (contextualReturnType) {
                return node.asteriskToken
                    ? contextualReturnType
                    : getElementTypeOfIterableIterator(contextualReturnType);
            }
        }
        return undefined;
    }
    function isInParameterInitializerBeforeContainingFunction(node) {
        while (node.parent && !ts.isFunctionLike(node.parent)) {
            if (node.parent.kind === 144 && node.parent.initializer === node) {
                return true;
            }
            node = node.parent;
        }
        return false;
    }
    function getContextualReturnType(functionDecl) {
        if (functionDecl.type ||
            functionDecl.kind === 150 ||
            functionDecl.kind === 151 && ts.getSetAccessorTypeAnnotationNode(ts.getDeclarationOfKind(functionDecl.symbol, 152))) {
            return getReturnTypeOfSignature(getSignatureFromDeclaration(functionDecl));
        }
        var signature = getContextualSignatureForFunctionLikeDeclaration(functionDecl);
        if (signature) {
            return getReturnTypeOfSignature(signature);
        }
        return undefined;
    }
    function getContextualTypeForArgument(callTarget, arg) {
        var args = getEffectiveCallArguments(callTarget);
        var argIndex = ts.indexOf(args, arg);
        if (argIndex >= 0) {
            var signature = getResolvedOrAnySignature(callTarget);
            return getTypeAtPosition(signature, argIndex);
        }
        return undefined;
    }
    function getContextualTypeForSubstitutionExpression(template, substitutionExpression) {
        if (template.parent.kind === 181) {
            return getContextualTypeForArgument(template.parent, substitutionExpression);
        }
        return undefined;
    }
    function getContextualTypeForBinaryOperand(node) {
        var binaryExpression = node.parent;
        var operator = binaryExpression.operatorToken.kind;
        if (operator >= 57 && operator <= 69) {
            if (ts.getSpecialPropertyAssignmentKind(binaryExpression) !== 0) {
                return undefined;
            }
            if (node === binaryExpression.right) {
                return getTypeOfExpression(binaryExpression.left);
            }
        }
        else if (operator === 53) {
            var type = getContextualType(binaryExpression);
            if (!type && node === binaryExpression.right) {
                type = getTypeOfExpression(binaryExpression.left);
            }
            return type;
        }
        else if (operator === 52 || operator === 25) {
            if (node === binaryExpression.right) {
                return getContextualType(binaryExpression);
            }
        }
        return undefined;
    }
    function applyToContextualType(type, mapper) {
        if (!(type.flags & 65536)) {
            return mapper(type);
        }
        var types = type.types;
        var mappedType;
        var mappedTypes;
        for (var _i = 0, types_13 = types; _i < types_13.length; _i++) {
            var current = types_13[_i];
            var t = mapper(current);
            if (t) {
                if (!mappedType) {
                    mappedType = t;
                }
                else if (!mappedTypes) {
                    mappedTypes = [mappedType, t];
                }
                else {
                    mappedTypes.push(t);
                }
            }
        }
        return mappedTypes ? getUnionType(mappedTypes) : mappedType;
    }
    function getTypeOfPropertyOfContextualType(type, name) {
        return applyToContextualType(type, function (t) {
            var prop = t.flags & 229376 ? getPropertyOfType(t, name) : undefined;
            return prop ? getTypeOfSymbol(prop) : undefined;
        });
    }
    function getIndexTypeOfContextualType(type, kind) {
        return applyToContextualType(type, function (t) { return getIndexTypeOfStructuredType(t, kind); });
    }
    function contextualTypeIsTupleLikeType(type) {
        return !!(type.flags & 65536 ? ts.forEach(type.types, isTupleLikeType) : isTupleLikeType(type));
    }
    function getContextualTypeForObjectLiteralMethod(node) {
        ts.Debug.assert(ts.isObjectLiteralMethod(node));
        if (isInsideWithStatementBody(node)) {
            return undefined;
        }
        return getContextualTypeForObjectLiteralElement(node);
    }
    function getContextualTypeForObjectLiteralElement(element) {
        var objectLiteral = element.parent;
        var type = getApparentTypeOfContextualType(objectLiteral);
        if (type) {
            if (!ts.hasDynamicName(element)) {
                var symbolName = getSymbolOfNode(element).name;
                var propertyType = getTypeOfPropertyOfContextualType(type, symbolName);
                if (propertyType) {
                    return propertyType;
                }
            }
            return isNumericName(element.name) && getIndexTypeOfContextualType(type, 1) ||
                getIndexTypeOfContextualType(type, 0);
        }
        return undefined;
    }
    function getContextualTypeForElementExpression(node) {
        var arrayLiteral = node.parent;
        var type = getApparentTypeOfContextualType(arrayLiteral);
        if (type) {
            var index = ts.indexOf(arrayLiteral.elements, node);
            return getTypeOfPropertyOfContextualType(type, "" + index)
                || getIndexTypeOfContextualType(type, 1)
                || (languageVersion >= 2 ? getElementTypeOfIterable(type, undefined) : undefined);
        }
        return undefined;
    }
    function getContextualTypeForConditionalOperand(node) {
        var conditional = node.parent;
        return node === conditional.whenTrue || node === conditional.whenFalse ? getContextualType(conditional) : undefined;
    }
    function getContextualTypeForJsxAttribute(attribute) {
        var kind = attribute.kind;
        var jsxElement = attribute.parent;
        var attrsType = getJsxElementAttributesType(jsxElement);
        if (attribute.kind === 250) {
            if (!attrsType || isTypeAny(attrsType)) {
                return undefined;
            }
            return getTypeOfPropertyOfType(attrsType, attribute.name.text);
        }
        else if (attribute.kind === 251) {
            return attrsType;
        }
        ts.Debug.fail("Expected JsxAttribute or JsxSpreadAttribute, got ts.SyntaxKind[" + kind + "]");
    }
    function getApparentTypeOfContextualType(node) {
        var type = getContextualType(node);
        return type && getApparentType(type);
    }
    function getContextualType(node) {
        if (isInsideWithStatementBody(node)) {
            return undefined;
        }
        if (node.contextualType) {
            return node.contextualType;
        }
        var parent = node.parent;
        switch (parent.kind) {
            case 223:
            case 144:
            case 147:
            case 146:
            case 174:
                return getContextualTypeForInitializerExpression(node);
            case 185:
            case 216:
                return getContextualTypeForReturnExpression(node);
            case 195:
                return getContextualTypeForYieldOperand(parent);
            case 179:
            case 180:
                return getContextualTypeForArgument(parent, node);
            case 182:
            case 200:
                return getTypeFromTypeNode(parent.type);
            case 192:
                return getContextualTypeForBinaryOperand(node);
            case 257:
            case 258:
                return getContextualTypeForObjectLiteralElement(parent);
            case 175:
                return getContextualTypeForElementExpression(node);
            case 193:
                return getContextualTypeForConditionalOperand(node);
            case 202:
                ts.Debug.assert(parent.parent.kind === 194);
                return getContextualTypeForSubstitutionExpression(parent.parent, node);
            case 183:
                return getContextualType(parent);
            case 252:
                return getContextualType(parent);
            case 250:
            case 251:
                return getContextualTypeForJsxAttribute(parent);
        }
        return undefined;
    }
    function getNonGenericSignature(type, node) {
        var signatures = getSignaturesOfStructuredType(type, 0);
        if (signatures.length === 1) {
            var signature = signatures[0];
            if (!signature.typeParameters && !isAritySmaller(signature, node)) {
                return signature;
            }
        }
    }
    function isAritySmaller(signature, target) {
        var targetParameterCount = 0;
        for (; targetParameterCount < target.parameters.length; targetParameterCount++) {
            var param = target.parameters[targetParameterCount];
            if (param.initializer || param.questionToken || param.dotDotDotToken || isJSDocOptionalParameter(param)) {
                break;
            }
        }
        if (target.parameters.length && ts.parameterIsThisKeyword(target.parameters[0])) {
            targetParameterCount--;
        }
        var sourceLength = signature.hasRestParameter ? Number.MAX_VALUE : signature.parameters.length;
        return sourceLength < targetParameterCount;
    }
    function isFunctionExpressionOrArrowFunction(node) {
        return node.kind === 184 || node.kind === 185;
    }
    function getContextualSignatureForFunctionLikeDeclaration(node) {
        return isFunctionExpressionOrArrowFunction(node) || ts.isObjectLiteralMethod(node)
            ? getContextualSignature(node)
            : undefined;
    }
    function getContextualTypeForFunctionLikeDeclaration(node) {
        return ts.isObjectLiteralMethod(node) ?
            getContextualTypeForObjectLiteralMethod(node) :
            getApparentTypeOfContextualType(node);
    }
    function getContextualSignature(node) {
        ts.Debug.assert(node.kind !== 149 || ts.isObjectLiteralMethod(node));
        var type = getContextualTypeForFunctionLikeDeclaration(node);
        if (!type) {
            return undefined;
        }
        if (!(type.flags & 65536)) {
            return getNonGenericSignature(type, node);
        }
        var signatureList;
        var types = type.types;
        for (var _i = 0, types_14 = types; _i < types_14.length; _i++) {
            var current = types_14[_i];
            var signature = getNonGenericSignature(current, node);
            if (signature) {
                if (!signatureList) {
                    signatureList = [signature];
                }
                else if (!compareSignaturesIdentical(signatureList[0], signature, false, true, true, compareTypesIdentical)) {
                    return undefined;
                }
                else {
                    signatureList.push(signature);
                }
            }
        }
        var result;
        if (signatureList) {
            result = cloneSignature(signatureList[0]);
            result.resolvedReturnType = undefined;
            result.unionSignatures = signatureList;
        }
        return result;
    }
    function isInferentialContext(mapper) {
        return mapper && mapper.context;
    }
    function checkSpreadExpression(node, contextualMapper) {
        var arrayOrIterableType = checkExpression(node.expression, contextualMapper);
        return checkIteratedTypeOrElementType(arrayOrIterableType, node.expression, false);
    }
    function hasDefaultValue(node) {
        return (node.kind === 174 && !!node.initializer) ||
            (node.kind === 192 && node.operatorToken.kind === 57);
    }
    function checkArrayLiteral(node, contextualMapper) {
        var elements = node.elements;
        var hasSpreadElement = false;
        var elementTypes = [];
        var inDestructuringPattern = ts.isAssignmentTarget(node);
        for (var _i = 0, elements_1 = elements; _i < elements_1.length; _i++) {
            var e = elements_1[_i];
            if (inDestructuringPattern && e.kind === 196) {
                var restArrayType = checkExpression(e.expression, contextualMapper);
                var restElementType = getIndexTypeOfType(restArrayType, 1) ||
                    (languageVersion >= 2 ? getElementTypeOfIterable(restArrayType, undefined) : undefined);
                if (restElementType) {
                    elementTypes.push(restElementType);
                }
            }
            else {
                var type = checkExpressionForMutableLocation(e, contextualMapper);
                elementTypes.push(type);
            }
            hasSpreadElement = hasSpreadElement || e.kind === 196;
        }
        if (!hasSpreadElement) {
            if (inDestructuringPattern && elementTypes.length) {
                var type = cloneTypeReference(createTupleType(elementTypes));
                type.pattern = node;
                return type;
            }
            var contextualType = getApparentTypeOfContextualType(node);
            if (contextualType && contextualTypeIsTupleLikeType(contextualType)) {
                var pattern = contextualType.pattern;
                if (pattern && (pattern.kind === 173 || pattern.kind === 175)) {
                    var patternElements = pattern.elements;
                    for (var i = elementTypes.length; i < patternElements.length; i++) {
                        var patternElement = patternElements[i];
                        if (hasDefaultValue(patternElement)) {
                            elementTypes.push(contextualType.typeArguments[i]);
                        }
                        else {
                            if (patternElement.kind !== 198) {
                                error(patternElement, ts.Diagnostics.Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value);
                            }
                            elementTypes.push(unknownType);
                        }
                    }
                }
                if (elementTypes.length) {
                    return createTupleType(elementTypes);
                }
            }
        }
        return createArrayType(elementTypes.length ?
            getUnionType(elementTypes, true) :
            strictNullChecks ? neverType : undefinedWideningType);
    }
    function isNumericName(name) {
        return name.kind === 142 ? isNumericComputedName(name) : isNumericLiteralName(name.text);
    }
    function isNumericComputedName(name) {
        return isTypeAnyOrAllConstituentTypesHaveKind(checkComputedPropertyName(name), 340);
    }
    function isTypeAnyOrAllConstituentTypesHaveKind(type, kind) {
        return isTypeAny(type) || isTypeOfKind(type, kind);
    }
    function isInfinityOrNaNString(name) {
        return name === "Infinity" || name === "-Infinity" || name === "NaN";
    }
    function isNumericLiteralName(name) {
        return (+name).toString() === name;
    }
    function checkComputedPropertyName(node) {
        var links = getNodeLinks(node.expression);
        if (!links.resolvedType) {
            links.resolvedType = checkExpression(node.expression);
            if (!isTypeAnyOrAllConstituentTypesHaveKind(links.resolvedType, 340 | 262178 | 512)) {
                error(node, ts.Diagnostics.A_computed_property_name_must_be_of_type_string_number_symbol_or_any);
            }
            else {
                checkThatExpressionIsProperSymbolReference(node.expression, links.resolvedType, true);
            }
        }
        return links.resolvedType;
    }
    function getObjectLiteralIndexInfo(propertyNodes, offset, properties, kind) {
        var propTypes = [];
        for (var i = 0; i < properties.length; i++) {
            if (kind === 0 || isNumericName(propertyNodes[i + offset].name)) {
                propTypes.push(getTypeOfSymbol(properties[i]));
            }
        }
        var unionType = propTypes.length ? getUnionType(propTypes, true) : undefinedType;
        return createIndexInfo(unionType, false);
    }
    function checkObjectLiteral(node, contextualMapper) {
        var inDestructuringPattern = ts.isAssignmentTarget(node);
        checkGrammarObjectLiteralExpression(node, inDestructuringPattern);
        var propertiesTable = ts.createMap();
        var propertiesArray = [];
        var spread = emptyObjectType;
        var propagatedFlags = 0;
        var contextualType = getApparentTypeOfContextualType(node);
        var contextualTypeHasPattern = contextualType && contextualType.pattern &&
            (contextualType.pattern.kind === 172 || contextualType.pattern.kind === 176);
        var typeFlags = 0;
        var patternWithComputedProperties = false;
        var hasComputedStringProperty = false;
        var hasComputedNumberProperty = false;
        var offset = 0;
        for (var i = 0; i < node.properties.length; i++) {
            var memberDecl = node.properties[i];
            var member = memberDecl.symbol;
            if (memberDecl.kind === 257 ||
                memberDecl.kind === 258 ||
                ts.isObjectLiteralMethod(memberDecl)) {
                var type = void 0;
                if (memberDecl.kind === 257) {
                    type = checkPropertyAssignment(memberDecl, contextualMapper);
                }
                else if (memberDecl.kind === 149) {
                    type = checkObjectLiteralMethod(memberDecl, contextualMapper);
                }
                else {
                    ts.Debug.assert(memberDecl.kind === 258);
                    type = checkExpressionForMutableLocation(memberDecl.name, contextualMapper);
                }
                typeFlags |= type.flags;
                var prop = createSymbol(4 | 67108864 | member.flags, member.name);
                if (inDestructuringPattern) {
                    var isOptional = (memberDecl.kind === 257 && hasDefaultValue(memberDecl.initializer)) ||
                        (memberDecl.kind === 258 && memberDecl.objectAssignmentInitializer);
                    if (isOptional) {
                        prop.flags |= 536870912;
                    }
                    if (ts.hasDynamicName(memberDecl)) {
                        patternWithComputedProperties = true;
                    }
                }
                else if (contextualTypeHasPattern && !(getObjectFlags(contextualType) & 512)) {
                    var impliedProp = getPropertyOfType(contextualType, member.name);
                    if (impliedProp) {
                        prop.flags |= impliedProp.flags & 536870912;
                    }
                    else if (!compilerOptions.suppressExcessPropertyErrors && !getIndexInfoOfType(contextualType, 0)) {
                        error(memberDecl.name, ts.Diagnostics.Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1, symbolToString(member), typeToString(contextualType));
                    }
                }
                prop.declarations = member.declarations;
                prop.parent = member.parent;
                if (member.valueDeclaration) {
                    prop.valueDeclaration = member.valueDeclaration;
                }
                prop.type = type;
                prop.target = member;
                member = prop;
            }
            else if (memberDecl.kind === 259) {
                if (languageVersion < 5) {
                    checkExternalEmitHelpers(memberDecl, 2);
                }
                if (propertiesArray.length > 0) {
                    spread = getSpreadType(spread, createObjectLiteralType(), true);
                    propertiesArray = [];
                    propertiesTable = ts.createMap();
                    hasComputedStringProperty = false;
                    hasComputedNumberProperty = false;
                    typeFlags = 0;
                }
                var type = checkExpression(memberDecl.expression);
                if (!isValidSpreadType(type)) {
                    error(memberDecl, ts.Diagnostics.Spread_types_may_only_be_created_from_object_types);
                    return unknownType;
                }
                spread = getSpreadType(spread, type, false);
                offset = i + 1;
                continue;
            }
            else {
                ts.Debug.assert(memberDecl.kind === 151 || memberDecl.kind === 152);
                checkAccessorDeclaration(memberDecl);
            }
            if (ts.hasDynamicName(memberDecl)) {
                if (isNumericName(memberDecl.name)) {
                    hasComputedNumberProperty = true;
                }
                else {
                    hasComputedStringProperty = true;
                }
            }
            else {
                propertiesTable[member.name] = member;
            }
            propertiesArray.push(member);
        }
        if (contextualTypeHasPattern) {
            for (var _i = 0, _a = getPropertiesOfType(contextualType); _i < _a.length; _i++) {
                var prop = _a[_i];
                if (!propertiesTable[prop.name]) {
                    if (!(prop.flags & 536870912)) {
                        error(prop.valueDeclaration || prop.bindingElement, ts.Diagnostics.Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value);
                    }
                    propertiesTable[prop.name] = prop;
                    propertiesArray.push(prop);
                }
            }
        }
        if (spread !== emptyObjectType) {
            if (propertiesArray.length > 0) {
                spread = getSpreadType(spread, createObjectLiteralType(), true);
            }
            if (spread.flags & 32768) {
                spread.flags |= propagatedFlags;
                spread.symbol = node.symbol;
            }
            return spread;
        }
        return createObjectLiteralType();
        function createObjectLiteralType() {
            var stringIndexInfo = hasComputedStringProperty ? getObjectLiteralIndexInfo(node.properties, offset, propertiesArray, 0) : undefined;
            var numberIndexInfo = hasComputedNumberProperty ? getObjectLiteralIndexInfo(node.properties, offset, propertiesArray, 1) : undefined;
            var result = createAnonymousType(node.symbol, propertiesTable, emptyArray, emptyArray, stringIndexInfo, numberIndexInfo);
            var freshObjectLiteralFlag = compilerOptions.suppressExcessPropertyErrors ? 0 : 1048576;
            result.flags |= 4194304 | freshObjectLiteralFlag | (typeFlags & 14680064);
            result.objectFlags |= 128;
            if (patternWithComputedProperties) {
                result.objectFlags |= 512;
            }
            if (inDestructuringPattern) {
                result.pattern = node;
            }
            if (!(result.flags & 6144)) {
                propagatedFlags |= (result.flags & 14680064);
            }
            return result;
        }
    }
    function isValidSpreadType(type) {
        return !!(type.flags & (1 | 4096 | 2048) ||
            type.flags & 32768 && !isGenericMappedType(type) ||
            type.flags & 196608 && !ts.forEach(type.types, function (t) { return !isValidSpreadType(t); }));
    }
    function checkJsxSelfClosingElement(node) {
        checkJsxOpeningLikeElement(node);
        return jsxElementType || anyType;
    }
    function checkJsxElement(node) {
        checkJsxOpeningLikeElement(node.openingElement);
        if (isJsxIntrinsicIdentifier(node.closingElement.tagName)) {
            getIntrinsicTagSymbol(node.closingElement);
        }
        else {
            checkExpression(node.closingElement.tagName);
        }
        for (var _i = 0, _a = node.children; _i < _a.length; _i++) {
            var child = _a[_i];
            switch (child.kind) {
                case 252:
                    checkJsxExpression(child);
                    break;
                case 246:
                    checkJsxElement(child);
                    break;
                case 247:
                    checkJsxSelfClosingElement(child);
                    break;
            }
        }
        return jsxElementType || anyType;
    }
    function isUnhyphenatedJsxName(name) {
        return name.indexOf("-") < 0;
    }
    function isJsxIntrinsicIdentifier(tagName) {
        if (tagName.kind === 177 || tagName.kind === 98) {
            return false;
        }
        else {
            return ts.isIntrinsicJsxName(tagName.text);
        }
    }
    function checkJsxAttribute(node, elementAttributesType, nameTable) {
        var correspondingPropType = undefined;
        if (elementAttributesType === emptyObjectType && isUnhyphenatedJsxName(node.name.text)) {
            error(node.parent, ts.Diagnostics.JSX_element_class_does_not_support_attributes_because_it_does_not_have_a_0_property, getJsxElementPropertiesName());
        }
        else if (elementAttributesType && !isTypeAny(elementAttributesType)) {
            var correspondingPropSymbol = getPropertyOfType(elementAttributesType, node.name.text);
            correspondingPropType = correspondingPropSymbol && getTypeOfSymbol(correspondingPropSymbol);
            if (isUnhyphenatedJsxName(node.name.text)) {
                var attributeType = getTypeOfPropertyOfType(elementAttributesType, ts.getTextOfPropertyName(node.name)) || getIndexTypeOfType(elementAttributesType, 0);
                if (attributeType) {
                    correspondingPropType = attributeType;
                }
                else {
                    if (!correspondingPropType) {
                        error(node.name, ts.Diagnostics.Property_0_does_not_exist_on_type_1, node.name.text, typeToString(elementAttributesType));
                        return unknownType;
                    }
                }
            }
        }
        var exprType;
        if (node.initializer) {
            exprType = checkExpression(node.initializer);
        }
        else {
            exprType = booleanType;
        }
        if (correspondingPropType) {
            checkTypeAssignableTo(exprType, correspondingPropType, node);
        }
        nameTable[node.name.text] = true;
        return exprType;
    }
    function checkJsxSpreadAttribute(node, elementAttributesType, nameTable) {
        if (compilerOptions.jsx === 2) {
            checkExternalEmitHelpers(node, 2);
        }
        var type = checkExpression(node.expression);
        var props = getPropertiesOfType(type);
        for (var _i = 0, props_2 = props; _i < props_2.length; _i++) {
            var prop = props_2[_i];
            if (!nameTable[prop.name]) {
                var targetPropSym = getPropertyOfType(elementAttributesType, prop.name);
                if (targetPropSym) {
                    var msg = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Property_0_of_JSX_spread_attribute_is_not_assignable_to_target_property, prop.name);
                    checkTypeAssignableTo(getTypeOfSymbol(prop), getTypeOfSymbol(targetPropSym), node, undefined, msg);
                }
                nameTable[prop.name] = true;
            }
        }
        return type;
    }
    function getJsxType(name) {
        if (jsxTypes[name] === undefined) {
            return jsxTypes[name] = getExportedTypeFromNamespace(JsxNames.JSX, name) || unknownType;
        }
        return jsxTypes[name];
    }
    function getIntrinsicTagSymbol(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedSymbol) {
            var intrinsicElementsType = getJsxType(JsxNames.IntrinsicElements);
            if (intrinsicElementsType !== unknownType) {
                var intrinsicProp = getPropertyOfType(intrinsicElementsType, node.tagName.text);
                if (intrinsicProp) {
                    links.jsxFlags |= 1;
                    return links.resolvedSymbol = intrinsicProp;
                }
                var indexSignatureType = getIndexTypeOfType(intrinsicElementsType, 0);
                if (indexSignatureType) {
                    links.jsxFlags |= 2;
                    return links.resolvedSymbol = intrinsicElementsType.symbol;
                }
                error(node, ts.Diagnostics.Property_0_does_not_exist_on_type_1, node.tagName.text, "JSX." + JsxNames.IntrinsicElements);
                return links.resolvedSymbol = unknownSymbol;
            }
            else {
                if (compilerOptions.noImplicitAny) {
                    error(node, ts.Diagnostics.JSX_element_implicitly_has_type_any_because_no_interface_JSX_0_exists, JsxNames.IntrinsicElements);
                }
                return links.resolvedSymbol = unknownSymbol;
            }
        }
        return links.resolvedSymbol;
    }
    function getJsxElementInstanceType(node, valueType) {
        ts.Debug.assert(!(valueType.flags & 65536));
        if (isTypeAny(valueType)) {
            return anyType;
        }
        var signatures = getSignaturesOfType(valueType, 1);
        if (signatures.length === 0) {
            signatures = getSignaturesOfType(valueType, 0);
            if (signatures.length === 0) {
                error(node.tagName, ts.Diagnostics.JSX_element_type_0_does_not_have_any_construct_or_call_signatures, ts.getTextOfNode(node.tagName));
                return unknownType;
            }
        }
        return getUnionType(ts.map(signatures, getReturnTypeOfSignature), true);
    }
    function getJsxElementPropertiesName() {
        var jsxNamespace = getGlobalSymbol(JsxNames.JSX, 1920, undefined);
        var attribsPropTypeSym = jsxNamespace && getSymbol(jsxNamespace.exports, JsxNames.ElementAttributesPropertyNameContainer, 793064);
        var attribPropType = attribsPropTypeSym && getDeclaredTypeOfSymbol(attribsPropTypeSym);
        var attribProperties = attribPropType && getPropertiesOfType(attribPropType);
        if (attribProperties) {
            if (attribProperties.length === 0) {
                return "";
            }
            else if (attribProperties.length === 1) {
                return attribProperties[0].name;
            }
            else {
                error(attribsPropTypeSym.declarations[0], ts.Diagnostics.The_global_type_JSX_0_may_not_have_more_than_one_property, JsxNames.ElementAttributesPropertyNameContainer);
                return undefined;
            }
        }
        else {
            return undefined;
        }
    }
    function getResolvedJsxType(node, elemType, elemClassType) {
        if (!elemType) {
            elemType = checkExpression(node.tagName);
        }
        if (elemType.flags & 65536) {
            var types = elemType.types;
            return getUnionType(ts.map(types, function (type) {
                return getResolvedJsxType(node, type, elemClassType);
            }), true);
        }
        if (elemType.flags & 2) {
            return anyType;
        }
        else if (elemType.flags & 32) {
            var intrinsicElementsType = getJsxType(JsxNames.IntrinsicElements);
            if (intrinsicElementsType !== unknownType) {
                var stringLiteralTypeName = elemType.text;
                var intrinsicProp = getPropertyOfType(intrinsicElementsType, stringLiteralTypeName);
                if (intrinsicProp) {
                    return getTypeOfSymbol(intrinsicProp);
                }
                var indexSignatureType = getIndexTypeOfType(intrinsicElementsType, 0);
                if (indexSignatureType) {
                    return indexSignatureType;
                }
                error(node, ts.Diagnostics.Property_0_does_not_exist_on_type_1, stringLiteralTypeName, "JSX." + JsxNames.IntrinsicElements);
            }
            return anyType;
        }
        var elemInstanceType = getJsxElementInstanceType(node, elemType);
        if (!elemClassType || !isTypeAssignableTo(elemInstanceType, elemClassType)) {
            if (jsxElementType) {
                var callSignatures = elemType && getSignaturesOfType(elemType, 0);
                var callSignature = callSignatures && callSignatures.length > 0 && callSignatures[0];
                var callReturnType = callSignature && getReturnTypeOfSignature(callSignature);
                var paramType = callReturnType && (callSignature.parameters.length === 0 ? emptyObjectType : getTypeOfSymbol(callSignature.parameters[0]));
                if (callReturnType && isTypeAssignableTo(callReturnType, jsxElementType)) {
                    var intrinsicAttributes = getJsxType(JsxNames.IntrinsicAttributes);
                    if (intrinsicAttributes !== unknownType) {
                        paramType = intersectTypes(intrinsicAttributes, paramType);
                    }
                    return paramType;
                }
            }
        }
        if (elemClassType) {
            checkTypeRelatedTo(elemInstanceType, elemClassType, assignableRelation, node, ts.Diagnostics.JSX_element_type_0_is_not_a_constructor_function_for_JSX_elements);
        }
        if (isTypeAny(elemInstanceType)) {
            return elemInstanceType;
        }
        var propsName = getJsxElementPropertiesName();
        if (propsName === undefined) {
            return anyType;
        }
        else if (propsName === "") {
            return elemInstanceType;
        }
        else {
            var attributesType = getTypeOfPropertyOfType(elemInstanceType, propsName);
            if (!attributesType) {
                return emptyObjectType;
            }
            else if (isTypeAny(attributesType) || (attributesType === unknownType)) {
                return attributesType;
            }
            else if (attributesType.flags & 65536) {
                error(node.tagName, ts.Diagnostics.JSX_element_attributes_type_0_may_not_be_a_union_type, typeToString(attributesType));
                return anyType;
            }
            else {
                var apparentAttributesType = attributesType;
                var intrinsicClassAttribs = getJsxType(JsxNames.IntrinsicClassAttributes);
                if (intrinsicClassAttribs !== unknownType) {
                    var typeParams = getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(intrinsicClassAttribs.symbol);
                    if (typeParams) {
                        if (typeParams.length === 1) {
                            apparentAttributesType = intersectTypes(createTypeReference(intrinsicClassAttribs, [elemInstanceType]), apparentAttributesType);
                        }
                    }
                    else {
                        apparentAttributesType = intersectTypes(attributesType, intrinsicClassAttribs);
                    }
                }
                var intrinsicAttribs = getJsxType(JsxNames.IntrinsicAttributes);
                if (intrinsicAttribs !== unknownType) {
                    apparentAttributesType = intersectTypes(intrinsicAttribs, apparentAttributesType);
                }
                return apparentAttributesType;
            }
        }
    }
    function getJsxElementAttributesType(node) {
        var links = getNodeLinks(node);
        if (!links.resolvedJsxType) {
            if (isJsxIntrinsicIdentifier(node.tagName)) {
                var symbol = getIntrinsicTagSymbol(node);
                if (links.jsxFlags & 1) {
                    return links.resolvedJsxType = getTypeOfSymbol(symbol);
                }
                else if (links.jsxFlags & 2) {
                    return links.resolvedJsxType = getIndexInfoOfSymbol(symbol, 0).type;
                }
                else {
                    return links.resolvedJsxType = unknownType;
                }
            }
            else {
                var elemClassType = getJsxGlobalElementClassType();
                return links.resolvedJsxType = getResolvedJsxType(node, undefined, elemClassType);
            }
        }
        return links.resolvedJsxType;
    }
    function getJsxAttributePropertySymbol(attrib) {
        var attributesType = getJsxElementAttributesType(attrib.parent);
        var prop = getPropertyOfType(attributesType, attrib.name.text);
        return prop || unknownSymbol;
    }
    function getJsxGlobalElementClassType() {
        if (!jsxElementClassType) {
            jsxElementClassType = getExportedTypeFromNamespace(JsxNames.JSX, JsxNames.ElementClass);
        }
        return jsxElementClassType;
    }
    function getJsxIntrinsicTagNames() {
        var intrinsics = getJsxType(JsxNames.IntrinsicElements);
        return intrinsics ? getPropertiesOfType(intrinsics) : emptyArray;
    }
    function checkJsxPreconditions(errorNode) {
        if ((compilerOptions.jsx || 0) === 0) {
            error(errorNode, ts.Diagnostics.Cannot_use_JSX_unless_the_jsx_flag_is_provided);
        }
        if (jsxElementType === undefined) {
            if (compilerOptions.noImplicitAny) {
                error(errorNode, ts.Diagnostics.JSX_element_implicitly_has_type_any_because_the_global_type_JSX_Element_does_not_exist);
            }
        }
    }
    function checkJsxOpeningLikeElement(node) {
        checkGrammarJsxElement(node);
        checkJsxPreconditions(node);
        var reactRefErr = compilerOptions.jsx === 2 ? ts.Diagnostics.Cannot_find_name_0 : undefined;
        var reactNamespace = getJsxNamespace();
        var reactSym = resolveName(node.tagName, reactNamespace, 107455, reactRefErr, reactNamespace);
        if (reactSym) {
            reactSym.isReferenced = true;
            if (reactSym.flags & 8388608 && !isConstEnumOrConstEnumOnlyModule(resolveAlias(reactSym))) {
                markAliasSymbolAsReferenced(reactSym);
            }
        }
        var targetAttributesType = getJsxElementAttributesType(node);
        var nameTable = ts.createMap();
        var sawSpreadedAny = false;
        for (var i = node.attributes.length - 1; i >= 0; i--) {
            if (node.attributes[i].kind === 250) {
                checkJsxAttribute((node.attributes[i]), targetAttributesType, nameTable);
            }
            else {
                ts.Debug.assert(node.attributes[i].kind === 251);
                var spreadType = checkJsxSpreadAttribute((node.attributes[i]), targetAttributesType, nameTable);
                if (isTypeAny(spreadType)) {
                    sawSpreadedAny = true;
                }
            }
        }
        if (targetAttributesType && !sawSpreadedAny) {
            var targetProperties = getPropertiesOfType(targetAttributesType);
            for (var i = 0; i < targetProperties.length; i++) {
                if (!(targetProperties[i].flags & 536870912) &&
                    !nameTable[targetProperties[i].name]) {
                    error(node, ts.Diagnostics.Property_0_is_missing_in_type_1, targetProperties[i].name, typeToString(targetAttributesType));
                }
            }
        }
    }
    function checkJsxExpression(node) {
        if (node.expression) {
            return checkExpression(node.expression);
        }
        else {
            return unknownType;
        }
    }
    function getDeclarationKindFromSymbol(s) {
        return s.valueDeclaration ? s.valueDeclaration.kind : 147;
    }
    function getDeclarationModifierFlagsFromSymbol(s) {
        return s.valueDeclaration ? ts.getCombinedModifierFlags(s.valueDeclaration) : s.flags & 134217728 ? 4 | 32 : 0;
    }
    function getDeclarationNodeFlagsFromSymbol(s) {
        return s.valueDeclaration ? ts.getCombinedNodeFlags(s.valueDeclaration) : 0;
    }
    function checkClassPropertyAccess(node, left, type, prop) {
        var flags = getDeclarationModifierFlagsFromSymbol(prop);
        var declaringClass = getDeclaredTypeOfSymbol(getParentOfSymbol(prop));
        var errorNode = node.kind === 177 || node.kind === 223 ?
            node.name :
            node.right;
        if (left.kind === 96) {
            if (languageVersion < 2 && getDeclarationKindFromSymbol(prop) !== 149) {
                error(errorNode, ts.Diagnostics.Only_public_and_protected_methods_of_the_base_class_are_accessible_via_the_super_keyword);
                return false;
            }
            if (flags & 128) {
                error(errorNode, ts.Diagnostics.Abstract_method_0_in_class_1_cannot_be_accessed_via_super_expression, symbolToString(prop), typeToString(declaringClass));
                return false;
            }
        }
        if (!(flags & 24)) {
            return true;
        }
        if (flags & 8) {
            var declaringClassDeclaration = getClassLikeDeclarationOfSymbol(getParentOfSymbol(prop));
            if (!isNodeWithinClass(node, declaringClassDeclaration)) {
                error(errorNode, ts.Diagnostics.Property_0_is_private_and_only_accessible_within_class_1, symbolToString(prop), typeToString(declaringClass));
                return false;
            }
            return true;
        }
        if (left.kind === 96) {
            return true;
        }
        var enclosingClass = forEachEnclosingClass(node, function (enclosingDeclaration) {
            var enclosingClass = getDeclaredTypeOfSymbol(getSymbolOfNode(enclosingDeclaration));
            return hasBaseType(enclosingClass, declaringClass) ? enclosingClass : undefined;
        });
        if (!enclosingClass) {
            error(errorNode, ts.Diagnostics.Property_0_is_protected_and_only_accessible_within_class_1_and_its_subclasses, symbolToString(prop), typeToString(declaringClass));
            return false;
        }
        if (flags & 32) {
            return true;
        }
        if (type.flags & 16384 && type.isThisType) {
            type = getConstraintOfTypeParameter(type);
        }
        if (!(getObjectFlags(getTargetType(type)) & 3 && hasBaseType(type, enclosingClass))) {
            error(errorNode, ts.Diagnostics.Property_0_is_protected_and_only_accessible_through_an_instance_of_class_1, symbolToString(prop), typeToString(enclosingClass));
            return false;
        }
        return true;
    }
    function checkNonNullExpression(node) {
        var type = checkExpression(node);
        if (strictNullChecks) {
            var kind = getFalsyFlags(type) & 6144;
            if (kind) {
                error(node, kind & 2048 ? kind & 4096 ?
                    ts.Diagnostics.Object_is_possibly_null_or_undefined :
                    ts.Diagnostics.Object_is_possibly_undefined :
                    ts.Diagnostics.Object_is_possibly_null);
            }
            return getNonNullableType(type);
        }
        return type;
    }
    function checkPropertyAccessExpression(node) {
        return checkPropertyAccessExpressionOrQualifiedName(node, node.expression, node.name);
    }
    function checkQualifiedName(node) {
        return checkPropertyAccessExpressionOrQualifiedName(node, node.left, node.right);
    }
    function reportNonexistentProperty(propNode, containingType) {
        var errorInfo;
        if (containingType.flags & 65536 && !(containingType.flags & 8190)) {
            for (var _i = 0, _a = containingType.types; _i < _a.length; _i++) {
                var subtype = _a[_i];
                if (!getPropertyOfType(subtype, propNode.text)) {
                    errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.Property_0_does_not_exist_on_type_1, ts.declarationNameToString(propNode), typeToString(subtype));
                    break;
                }
            }
        }
        errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.Property_0_does_not_exist_on_type_1, ts.declarationNameToString(propNode), typeToString(containingType));
        diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(propNode, errorInfo));
    }
    function markPropertyAsReferenced(prop) {
        if (prop &&
            noUnusedIdentifiers &&
            (prop.flags & 106500) &&
            prop.valueDeclaration && (ts.getModifierFlags(prop.valueDeclaration) & 8)) {
            if (prop.flags & 16777216) {
                getSymbolLinks(prop).target.isReferenced = true;
            }
            else {
                prop.isReferenced = true;
            }
        }
    }
    function checkPropertyAccessExpressionOrQualifiedName(node, left, right) {
        var type = checkNonNullExpression(left);
        if (isTypeAny(type) || type === silentNeverType) {
            return type;
        }
        var apparentType = getApparentType(getWidenedType(type));
        if (apparentType === unknownType || (type.flags & 16384 && isTypeAny(apparentType))) {
            return apparentType;
        }
        var prop = getPropertyOfType(apparentType, right.text);
        if (!prop) {
            if (right.text && !checkAndReportErrorForExtendingInterface(node)) {
                reportNonexistentProperty(right, type.flags & 16384 && type.isThisType ? apparentType : type);
            }
            return unknownType;
        }
        markPropertyAsReferenced(prop);
        getNodeLinks(node).resolvedSymbol = prop;
        if (prop.parent && prop.parent.flags & 32) {
            checkClassPropertyAccess(node, left, apparentType, prop);
        }
        var propType = getTypeOfSymbol(prop);
        var assignmentKind = ts.getAssignmentTargetKind(node);
        if (assignmentKind) {
            if (isReferenceToReadonlyEntity(node, prop) || isReferenceThroughNamespaceImport(node)) {
                error(right, ts.Diagnostics.Cannot_assign_to_0_because_it_is_a_constant_or_a_read_only_property, right.text);
                return unknownType;
            }
        }
        if (node.kind !== 177 || assignmentKind === 1 ||
            !(prop.flags & (3 | 4 | 98304)) &&
                !(prop.flags & 8192 && propType.flags & 65536)) {
            return propType;
        }
        var flowType = getFlowTypeOfReference(node, propType, true, undefined);
        return assignmentKind ? getBaseTypeOfLiteralType(flowType) : flowType;
    }
    function isValidPropertyAccess(node, propertyName) {
        var left = node.kind === 177
            ? node.expression
            : node.left;
        var type = checkExpression(left);
        if (type !== unknownType && !isTypeAny(type)) {
            var prop = getPropertyOfType(getWidenedType(type), propertyName);
            if (prop && prop.parent && prop.parent.flags & 32) {
                return checkClassPropertyAccess(node, left, type, prop);
            }
        }
        return true;
    }
    function getForInVariableSymbol(node) {
        var initializer = node.initializer;
        if (initializer.kind === 224) {
            var variable = initializer.declarations[0];
            if (variable && !ts.isBindingPattern(variable.name)) {
                return getSymbolOfNode(variable);
            }
        }
        else if (initializer.kind === 70) {
            return getResolvedSymbol(initializer);
        }
        return undefined;
    }
    function hasNumericPropertyNames(type) {
        return getIndexTypeOfType(type, 1) && !getIndexTypeOfType(type, 0);
    }
    function isForInVariableForNumericPropertyNames(expr) {
        var e = ts.skipParentheses(expr);
        if (e.kind === 70) {
            var symbol = getResolvedSymbol(e);
            if (symbol.flags & 3) {
                var child = expr;
                var node = expr.parent;
                while (node) {
                    if (node.kind === 212 &&
                        child === node.statement &&
                        getForInVariableSymbol(node) === symbol &&
                        hasNumericPropertyNames(getTypeOfExpression(node.expression))) {
                        return true;
                    }
                    child = node;
                    node = node.parent;
                }
            }
        }
        return false;
    }
    function checkIndexedAccess(node) {
        var objectType = checkNonNullExpression(node.expression);
        var indexExpression = node.argumentExpression;
        if (!indexExpression) {
            var sourceFile = ts.getSourceFileOfNode(node);
            if (node.parent.kind === 180 && node.parent.expression === node) {
                var start = ts.skipTrivia(sourceFile.text, node.expression.end);
                var end = node.end;
                grammarErrorAtPos(sourceFile, start, end - start, ts.Diagnostics.new_T_cannot_be_used_to_create_an_array_Use_new_Array_T_instead);
            }
            else {
                var start = node.end - "]".length;
                var end = node.end;
                grammarErrorAtPos(sourceFile, start, end - start, ts.Diagnostics.Expression_expected);
            }
            return unknownType;
        }
        var indexType = isForInVariableForNumericPropertyNames(indexExpression) ? numberType : checkExpression(indexExpression);
        if (objectType === unknownType || objectType === silentNeverType) {
            return objectType;
        }
        if (isConstEnumObjectType(objectType) && indexExpression.kind !== 9) {
            error(indexExpression, ts.Diagnostics.A_const_enum_member_can_only_be_accessed_using_a_string_literal);
            return unknownType;
        }
        return getIndexedAccessType(objectType, indexType, node);
    }
    function checkThatExpressionIsProperSymbolReference(expression, expressionType, reportError) {
        if (expressionType === unknownType) {
            return false;
        }
        if (!ts.isWellKnownSymbolSyntactically(expression)) {
            return false;
        }
        if ((expressionType.flags & 512) === 0) {
            if (reportError) {
                error(expression, ts.Diagnostics.A_computed_property_name_of_the_form_0_must_be_of_type_symbol, ts.getTextOfNode(expression));
            }
            return false;
        }
        var leftHandSide = expression.expression;
        var leftHandSideSymbol = getResolvedSymbol(leftHandSide);
        if (!leftHandSideSymbol) {
            return false;
        }
        var globalESSymbol = getGlobalESSymbolConstructorSymbol();
        if (!globalESSymbol) {
            return false;
        }
        if (leftHandSideSymbol !== globalESSymbol) {
            if (reportError) {
                error(leftHandSide, ts.Diagnostics.Symbol_reference_does_not_refer_to_the_global_Symbol_constructor_object);
            }
            return false;
        }
        return true;
    }
    function resolveUntypedCall(node) {
        if (node.kind === 181) {
            checkExpression(node.template);
        }
        else if (node.kind !== 145) {
            ts.forEach(node.arguments, function (argument) {
                checkExpression(argument);
            });
        }
        return anySignature;
    }
    function resolveErrorCall(node) {
        resolveUntypedCall(node);
        return unknownSignature;
    }
    function reorderCandidates(signatures, result) {
        var lastParent;
        var lastSymbol;
        var cutoffIndex = 0;
        var index;
        var specializedIndex = -1;
        var spliceIndex;
        ts.Debug.assert(!result.length);
        for (var _i = 0, signatures_2 = signatures; _i < signatures_2.length; _i++) {
            var signature = signatures_2[_i];
            var symbol = signature.declaration && getSymbolOfNode(signature.declaration);
            var parent_9 = signature.declaration && signature.declaration.parent;
            if (!lastSymbol || symbol === lastSymbol) {
                if (lastParent && parent_9 === lastParent) {
                    index++;
                }
                else {
                    lastParent = parent_9;
                    index = cutoffIndex;
                }
            }
            else {
                index = cutoffIndex = result.length;
                lastParent = parent_9;
            }
            lastSymbol = symbol;
            if (signature.hasLiteralTypes) {
                specializedIndex++;
                spliceIndex = specializedIndex;
                cutoffIndex++;
            }
            else {
                spliceIndex = index;
            }
            result.splice(spliceIndex, 0, signature);
        }
    }
    function getSpreadArgumentIndex(args) {
        for (var i = 0; i < args.length; i++) {
            var arg = args[i];
            if (arg && arg.kind === 196) {
                return i;
            }
        }
        return -1;
    }
    function hasCorrectArity(node, args, signature, signatureHelpTrailingComma) {
        if (signatureHelpTrailingComma === void 0) { signatureHelpTrailingComma = false; }
        var argCount;
        var typeArguments;
        var callIsIncomplete;
        var isDecorator;
        var spreadArgIndex = -1;
        if (node.kind === 181) {
            var tagExpression = node;
            argCount = args.length;
            typeArguments = undefined;
            if (tagExpression.template.kind === 194) {
                var templateExpression = tagExpression.template;
                var lastSpan = ts.lastOrUndefined(templateExpression.templateSpans);
                ts.Debug.assert(lastSpan !== undefined);
                callIsIncomplete = ts.nodeIsMissing(lastSpan.literal) || !!lastSpan.literal.isUnterminated;
            }
            else {
                var templateLiteral = tagExpression.template;
                ts.Debug.assert(templateLiteral.kind === 12);
                callIsIncomplete = !!templateLiteral.isUnterminated;
            }
        }
        else if (node.kind === 145) {
            isDecorator = true;
            typeArguments = undefined;
            argCount = getEffectiveArgumentCount(node, undefined, signature);
        }
        else {
            var callExpression = node;
            if (!callExpression.arguments) {
                ts.Debug.assert(callExpression.kind === 180);
                return signature.minArgumentCount === 0;
            }
            argCount = signatureHelpTrailingComma ? args.length + 1 : args.length;
            callIsIncomplete = callExpression.arguments.end === callExpression.end;
            typeArguments = callExpression.typeArguments;
            spreadArgIndex = getSpreadArgumentIndex(args);
        }
        var hasRightNumberOfTypeArgs = !typeArguments ||
            (signature.typeParameters && typeArguments.length === signature.typeParameters.length);
        if (!hasRightNumberOfTypeArgs) {
            return false;
        }
        if (spreadArgIndex >= 0) {
            return isRestParameterIndex(signature, spreadArgIndex);
        }
        if (!signature.hasRestParameter && argCount > signature.parameters.length) {
            return false;
        }
        var hasEnoughArguments = argCount >= signature.minArgumentCount;
        return callIsIncomplete || hasEnoughArguments;
    }
    function getSingleCallSignature(type) {
        if (type.flags & 32768) {
            var resolved = resolveStructuredTypeMembers(type);
            if (resolved.callSignatures.length === 1 && resolved.constructSignatures.length === 0 &&
                resolved.properties.length === 0 && !resolved.stringIndexInfo && !resolved.numberIndexInfo) {
                return resolved.callSignatures[0];
            }
        }
        return undefined;
    }
    function instantiateSignatureInContextOf(signature, contextualSignature, contextualMapper) {
        var context = createInferenceContext(signature, true);
        forEachMatchingParameterType(contextualSignature, signature, function (source, target) {
            inferTypesWithContext(context, instantiateType(source, contextualMapper), target);
        });
        return getSignatureInstantiation(signature, getInferredTypes(context));
    }
    function inferTypeArguments(node, signature, args, excludeArgument, context) {
        var typeParameters = signature.typeParameters;
        var inferenceMapper = getInferenceMapper(context);
        for (var i = 0; i < typeParameters.length; i++) {
            if (!context.inferences[i].isFixed) {
                context.inferredTypes[i] = undefined;
            }
        }
        if (context.failedTypeParameterIndex !== undefined && !context.inferences[context.failedTypeParameterIndex].isFixed) {
            context.failedTypeParameterIndex = undefined;
        }
        var thisType = getThisTypeOfSignature(signature);
        if (thisType) {
            var thisArgumentNode = getThisArgumentOfCall(node);
            var thisArgumentType = thisArgumentNode ? checkExpression(thisArgumentNode) : voidType;
            inferTypesWithContext(context, thisArgumentType, thisType);
        }
        var argCount = getEffectiveArgumentCount(node, args, signature);
        for (var i = 0; i < argCount; i++) {
            var arg = getEffectiveArgument(node, args, i);
            if (arg === undefined || arg.kind !== 198) {
                var paramType = getTypeAtPosition(signature, i);
                var argType = getEffectiveArgumentType(node, i);
                if (argType === undefined) {
                    var mapper = excludeArgument && excludeArgument[i] !== undefined ? identityMapper : inferenceMapper;
                    argType = checkExpressionWithContextualType(arg, paramType, mapper);
                }
                inferTypesWithContext(context, argType, paramType);
            }
        }
        if (excludeArgument) {
            for (var i = 0; i < argCount; i++) {
                if (excludeArgument[i] === false) {
                    var arg = args[i];
                    var paramType = getTypeAtPosition(signature, i);
                    inferTypesWithContext(context, checkExpressionWithContextualType(arg, paramType, inferenceMapper), paramType);
                }
            }
        }
        getInferredTypes(context);
    }
    function checkTypeArguments(signature, typeArgumentNodes, typeArgumentTypes, reportErrors, headMessage) {
        var typeParameters = signature.typeParameters;
        var typeArgumentsAreAssignable = true;
        var mapper;
        for (var i = 0; i < typeParameters.length; i++) {
            if (typeArgumentsAreAssignable) {
                var constraint = getConstraintOfTypeParameter(typeParameters[i]);
                if (constraint) {
                    var errorInfo = void 0;
                    var typeArgumentHeadMessage = ts.Diagnostics.Type_0_does_not_satisfy_the_constraint_1;
                    if (reportErrors && headMessage) {
                        errorInfo = ts.chainDiagnosticMessages(errorInfo, typeArgumentHeadMessage);
                        typeArgumentHeadMessage = headMessage;
                    }
                    if (!mapper) {
                        mapper = createTypeMapper(typeParameters, typeArgumentTypes);
                    }
                    var typeArgument = typeArgumentTypes[i];
                    typeArgumentsAreAssignable = checkTypeAssignableTo(typeArgument, getTypeWithThisArgument(instantiateType(constraint, mapper), typeArgument), reportErrors ? typeArgumentNodes[i] : undefined, typeArgumentHeadMessage, errorInfo);
                }
            }
        }
        return typeArgumentsAreAssignable;
    }
    function checkApplicableSignature(node, args, signature, relation, excludeArgument, reportErrors) {
        var thisType = getThisTypeOfSignature(signature);
        if (thisType && thisType !== voidType && node.kind !== 180) {
            var thisArgumentNode = getThisArgumentOfCall(node);
            var thisArgumentType = thisArgumentNode ? checkExpression(thisArgumentNode) : voidType;
            var errorNode = reportErrors ? (thisArgumentNode || node) : undefined;
            var headMessage_1 = ts.Diagnostics.The_this_context_of_type_0_is_not_assignable_to_method_s_this_of_type_1;
            if (!checkTypeRelatedTo(thisArgumentType, getThisTypeOfSignature(signature), relation, errorNode, headMessage_1)) {
                return false;
            }
        }
        var headMessage = ts.Diagnostics.Argument_of_type_0_is_not_assignable_to_parameter_of_type_1;
        var argCount = getEffectiveArgumentCount(node, args, signature);
        for (var i = 0; i < argCount; i++) {
            var arg = getEffectiveArgument(node, args, i);
            if (arg === undefined || arg.kind !== 198) {
                var paramType = getTypeAtPosition(signature, i);
                var argType = getEffectiveArgumentType(node, i);
                if (argType === undefined) {
                    argType = checkExpressionWithContextualType(arg, paramType, excludeArgument && excludeArgument[i] ? identityMapper : undefined);
                }
                var errorNode = reportErrors ? getEffectiveArgumentErrorNode(node, i, arg) : undefined;
                if (!checkTypeRelatedTo(argType, paramType, relation, errorNode, headMessage)) {
                    return false;
                }
            }
        }
        return true;
    }
    function getThisArgumentOfCall(node) {
        if (node.kind === 179) {
            var callee = node.expression;
            if (callee.kind === 177) {
                return callee.expression;
            }
            else if (callee.kind === 178) {
                return callee.expression;
            }
        }
    }
    function getEffectiveCallArguments(node) {
        var args;
        if (node.kind === 181) {
            var template = node.template;
            args = [undefined];
            if (template.kind === 194) {
                ts.forEach(template.templateSpans, function (span) {
                    args.push(span.expression);
                });
            }
        }
        else if (node.kind === 145) {
            return undefined;
        }
        else {
            args = node.arguments || emptyArray;
        }
        return args;
    }
    function getEffectiveArgumentCount(node, args, signature) {
        if (node.kind === 145) {
            switch (node.parent.kind) {
                case 226:
                case 197:
                    return 1;
                case 147:
                    return 2;
                case 149:
                case 151:
                case 152:
                    if (languageVersion === 0) {
                        return 2;
                    }
                    return signature.parameters.length >= 3 ? 3 : 2;
                case 144:
                    return 3;
            }
        }
        else {
            return args.length;
        }
    }
    function getEffectiveDecoratorFirstArgumentType(node) {
        if (node.kind === 226) {
            var classSymbol = getSymbolOfNode(node);
            return getTypeOfSymbol(classSymbol);
        }
        if (node.kind === 144) {
            node = node.parent;
            if (node.kind === 150) {
                var classSymbol = getSymbolOfNode(node);
                return getTypeOfSymbol(classSymbol);
            }
        }
        if (node.kind === 147 ||
            node.kind === 149 ||
            node.kind === 151 ||
            node.kind === 152) {
            return getParentTypeOfClassElement(node);
        }
        ts.Debug.fail("Unsupported decorator target.");
        return unknownType;
    }
    function getEffectiveDecoratorSecondArgumentType(node) {
        if (node.kind === 226) {
            ts.Debug.fail("Class decorators should not have a second synthetic argument.");
            return unknownType;
        }
        if (node.kind === 144) {
            node = node.parent;
            if (node.kind === 150) {
                return anyType;
            }
        }
        if (node.kind === 147 ||
            node.kind === 149 ||
            node.kind === 151 ||
            node.kind === 152) {
            var element = node;
            switch (element.name.kind) {
                case 70:
                case 8:
                case 9:
                    return getLiteralTypeForText(32, element.name.text);
                case 142:
                    var nameType = checkComputedPropertyName(element.name);
                    if (isTypeOfKind(nameType, 512)) {
                        return nameType;
                    }
                    else {
                        return stringType;
                    }
                default:
                    ts.Debug.fail("Unsupported property name.");
                    return unknownType;
            }
        }
        ts.Debug.fail("Unsupported decorator target.");
        return unknownType;
    }
    function getEffectiveDecoratorThirdArgumentType(node) {
        if (node.kind === 226) {
            ts.Debug.fail("Class decorators should not have a third synthetic argument.");
            return unknownType;
        }
        if (node.kind === 144) {
            return numberType;
        }
        if (node.kind === 147) {
            ts.Debug.fail("Property decorators should not have a third synthetic argument.");
            return unknownType;
        }
        if (node.kind === 149 ||
            node.kind === 151 ||
            node.kind === 152) {
            var propertyType = getTypeOfNode(node);
            return createTypedPropertyDescriptorType(propertyType);
        }
        ts.Debug.fail("Unsupported decorator target.");
        return unknownType;
    }
    function getEffectiveDecoratorArgumentType(node, argIndex) {
        if (argIndex === 0) {
            return getEffectiveDecoratorFirstArgumentType(node.parent);
        }
        else if (argIndex === 1) {
            return getEffectiveDecoratorSecondArgumentType(node.parent);
        }
        else if (argIndex === 2) {
            return getEffectiveDecoratorThirdArgumentType(node.parent);
        }
        ts.Debug.fail("Decorators should not have a fourth synthetic argument.");
        return unknownType;
    }
    function getEffectiveArgumentType(node, argIndex) {
        if (node.kind === 145) {
            return getEffectiveDecoratorArgumentType(node, argIndex);
        }
        else if (argIndex === 0 && node.kind === 181) {
            return getGlobalTemplateStringsArrayType();
        }
        return undefined;
    }
    function getEffectiveArgument(node, args, argIndex) {
        if (node.kind === 145 ||
            (argIndex === 0 && node.kind === 181)) {
            return undefined;
        }
        return args[argIndex];
    }
    function getEffectiveArgumentErrorNode(node, argIndex, arg) {
        if (node.kind === 145) {
            return node.expression;
        }
        else if (argIndex === 0 && node.kind === 181) {
            return node.template;
        }
        else {
            return arg;
        }
    }
    function resolveCall(node, signatures, candidatesOutArray, headMessage) {
        var isTaggedTemplate = node.kind === 181;
        var isDecorator = node.kind === 145;
        var typeArguments;
        if (!isTaggedTemplate && !isDecorator) {
            typeArguments = node.typeArguments;
            if (node.expression.kind !== 96) {
                ts.forEach(typeArguments, checkSourceElement);
            }
        }
        var candidates = candidatesOutArray || [];
        reorderCandidates(signatures, candidates);
        if (!candidates.length) {
            reportError(ts.Diagnostics.Supplied_parameters_do_not_match_any_signature_of_call_target);
            return resolveErrorCall(node);
        }
        var args = getEffectiveCallArguments(node);
        var excludeArgument;
        if (!isDecorator) {
            for (var i = isTaggedTemplate ? 1 : 0; i < args.length; i++) {
                if (isContextSensitive(args[i])) {
                    if (!excludeArgument) {
                        excludeArgument = new Array(args.length);
                    }
                    excludeArgument[i] = true;
                }
            }
        }
        var candidateForArgumentError;
        var candidateForTypeArgumentError;
        var resultOfFailedInference;
        var result;
        var signatureHelpTrailingComma = candidatesOutArray && node.kind === 179 && node.arguments.hasTrailingComma;
        if (candidates.length > 1) {
            result = chooseOverload(candidates, subtypeRelation, signatureHelpTrailingComma);
        }
        if (!result) {
            candidateForArgumentError = undefined;
            candidateForTypeArgumentError = undefined;
            resultOfFailedInference = undefined;
            result = chooseOverload(candidates, assignableRelation, signatureHelpTrailingComma);
        }
        if (result) {
            return result;
        }
        if (candidateForArgumentError) {
            checkApplicableSignature(node, args, candidateForArgumentError, assignableRelation, undefined, true);
        }
        else if (candidateForTypeArgumentError) {
            if (!isTaggedTemplate && !isDecorator && typeArguments) {
                var typeArguments_2 = node.typeArguments;
                checkTypeArguments(candidateForTypeArgumentError, typeArguments_2, ts.map(typeArguments_2, getTypeFromTypeNode), true, headMessage);
            }
            else {
                ts.Debug.assert(resultOfFailedInference.failedTypeParameterIndex >= 0);
                var failedTypeParameter = candidateForTypeArgumentError.typeParameters[resultOfFailedInference.failedTypeParameterIndex];
                var inferenceCandidates = getInferenceCandidates(resultOfFailedInference, resultOfFailedInference.failedTypeParameterIndex);
                var diagnosticChainHead = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.The_type_argument_for_type_parameter_0_cannot_be_inferred_from_the_usage_Consider_specifying_the_type_arguments_explicitly, typeToString(failedTypeParameter));
                if (headMessage) {
                    diagnosticChainHead = ts.chainDiagnosticMessages(diagnosticChainHead, headMessage);
                }
                reportNoCommonSupertypeError(inferenceCandidates, node.expression || node.tag, diagnosticChainHead);
            }
        }
        else {
            reportError(ts.Diagnostics.Supplied_parameters_do_not_match_any_signature_of_call_target);
        }
        if (!produceDiagnostics) {
            for (var _i = 0, candidates_1 = candidates; _i < candidates_1.length; _i++) {
                var candidate = candidates_1[_i];
                if (hasCorrectArity(node, args, candidate)) {
                    if (candidate.typeParameters && typeArguments) {
                        candidate = getSignatureInstantiation(candidate, ts.map(typeArguments, getTypeFromTypeNode));
                    }
                    return candidate;
                }
            }
        }
        return resolveErrorCall(node);
        function reportError(message, arg0, arg1, arg2) {
            var errorInfo;
            errorInfo = ts.chainDiagnosticMessages(errorInfo, message, arg0, arg1, arg2);
            if (headMessage) {
                errorInfo = ts.chainDiagnosticMessages(errorInfo, headMessage);
            }
            diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(node, errorInfo));
        }
        function chooseOverload(candidates, relation, signatureHelpTrailingComma) {
            if (signatureHelpTrailingComma === void 0) { signatureHelpTrailingComma = false; }
            for (var _i = 0, candidates_2 = candidates; _i < candidates_2.length; _i++) {
                var originalCandidate = candidates_2[_i];
                if (!hasCorrectArity(node, args, originalCandidate, signatureHelpTrailingComma)) {
                    continue;
                }
                var candidate = void 0;
                var typeArgumentsAreValid = void 0;
                var inferenceContext = originalCandidate.typeParameters
                    ? createInferenceContext(originalCandidate, false)
                    : undefined;
                while (true) {
                    candidate = originalCandidate;
                    if (candidate.typeParameters) {
                        var typeArgumentTypes = void 0;
                        if (typeArguments) {
                            typeArgumentTypes = ts.map(typeArguments, getTypeFromTypeNode);
                            typeArgumentsAreValid = checkTypeArguments(candidate, typeArguments, typeArgumentTypes, false);
                        }
                        else {
                            inferTypeArguments(node, candidate, args, excludeArgument, inferenceContext);
                            typeArgumentsAreValid = inferenceContext.failedTypeParameterIndex === undefined;
                            typeArgumentTypes = inferenceContext.inferredTypes;
                        }
                        if (!typeArgumentsAreValid) {
                            break;
                        }
                        candidate = getSignatureInstantiation(candidate, typeArgumentTypes);
                    }
                    if (!checkApplicableSignature(node, args, candidate, relation, excludeArgument, false)) {
                        break;
                    }
                    var index = excludeArgument ? ts.indexOf(excludeArgument, true) : -1;
                    if (index < 0) {
                        return candidate;
                    }
                    excludeArgument[index] = false;
                }
                if (originalCandidate.typeParameters) {
                    var instantiatedCandidate = candidate;
                    if (typeArgumentsAreValid) {
                        candidateForArgumentError = instantiatedCandidate;
                    }
                    else {
                        candidateForTypeArgumentError = originalCandidate;
                        if (!typeArguments) {
                            resultOfFailedInference = inferenceContext;
                        }
                    }
                }
                else {
                    ts.Debug.assert(originalCandidate === candidate);
                    candidateForArgumentError = originalCandidate;
                }
            }
            return undefined;
        }
    }
    function resolveCallExpression(node, candidatesOutArray) {
        if (node.expression.kind === 96) {
            var superType = checkSuperExpression(node.expression);
            if (superType !== unknownType) {
                var baseTypeNode = ts.getClassExtendsHeritageClauseElement(ts.getContainingClass(node));
                if (baseTypeNode) {
                    var baseConstructors = getInstantiatedConstructorsForTypeArguments(superType, baseTypeNode.typeArguments);
                    return resolveCall(node, baseConstructors, candidatesOutArray);
                }
            }
            return resolveUntypedCall(node);
        }
        var funcType = checkNonNullExpression(node.expression);
        if (funcType === silentNeverType) {
            return silentNeverSignature;
        }
        var apparentType = getApparentType(funcType);
        if (apparentType === unknownType) {
            return resolveErrorCall(node);
        }
        var callSignatures = getSignaturesOfType(apparentType, 0);
        var constructSignatures = getSignaturesOfType(apparentType, 1);
        if (isUntypedFunctionCall(funcType, apparentType, callSignatures.length, constructSignatures.length)) {
            if (funcType !== unknownType && node.typeArguments) {
                error(node, ts.Diagnostics.Untyped_function_calls_may_not_accept_type_arguments);
            }
            return resolveUntypedCall(node);
        }
        if (!callSignatures.length) {
            if (constructSignatures.length) {
                error(node, ts.Diagnostics.Value_of_type_0_is_not_callable_Did_you_mean_to_include_new, typeToString(funcType));
            }
            else {
                error(node, ts.Diagnostics.Cannot_invoke_an_expression_whose_type_lacks_a_call_signature_Type_0_has_no_compatible_call_signatures, typeToString(apparentType));
            }
            return resolveErrorCall(node);
        }
        return resolveCall(node, callSignatures, candidatesOutArray);
    }
    function isUntypedFunctionCall(funcType, apparentFuncType, numCallSignatures, numConstructSignatures) {
        if (isTypeAny(funcType)) {
            return true;
        }
        if (isTypeAny(apparentFuncType) && funcType.flags & 16384) {
            return true;
        }
        if (!numCallSignatures && !numConstructSignatures) {
            if (funcType.flags & 65536) {
                return false;
            }
            return isTypeAssignableTo(funcType, globalFunctionType);
        }
        return false;
    }
    function resolveNewExpression(node, candidatesOutArray) {
        if (node.arguments && languageVersion < 1) {
            var spreadIndex = getSpreadArgumentIndex(node.arguments);
            if (spreadIndex >= 0) {
                error(node.arguments[spreadIndex], ts.Diagnostics.Spread_operator_in_new_expressions_is_only_available_when_targeting_ECMAScript_5_and_higher);
            }
        }
        var expressionType = checkNonNullExpression(node.expression);
        if (expressionType === silentNeverType) {
            return silentNeverSignature;
        }
        expressionType = getApparentType(expressionType);
        if (expressionType === unknownType) {
            return resolveErrorCall(node);
        }
        var valueDecl = expressionType.symbol && getClassLikeDeclarationOfSymbol(expressionType.symbol);
        if (valueDecl && ts.getModifierFlags(valueDecl) & 128) {
            error(node, ts.Diagnostics.Cannot_create_an_instance_of_the_abstract_class_0, ts.declarationNameToString(valueDecl.name));
            return resolveErrorCall(node);
        }
        if (isTypeAny(expressionType)) {
            if (node.typeArguments) {
                error(node, ts.Diagnostics.Untyped_function_calls_may_not_accept_type_arguments);
            }
            return resolveUntypedCall(node);
        }
        var constructSignatures = getSignaturesOfType(expressionType, 1);
        if (constructSignatures.length) {
            if (!isConstructorAccessible(node, constructSignatures[0])) {
                return resolveErrorCall(node);
            }
            return resolveCall(node, constructSignatures, candidatesOutArray);
        }
        var callSignatures = getSignaturesOfType(expressionType, 0);
        if (callSignatures.length) {
            var signature = resolveCall(node, callSignatures, candidatesOutArray);
            if (getReturnTypeOfSignature(signature) !== voidType) {
                error(node, ts.Diagnostics.Only_a_void_function_can_be_called_with_the_new_keyword);
            }
            if (getThisTypeOfSignature(signature) === voidType) {
                error(node, ts.Diagnostics.A_function_that_is_called_with_the_new_keyword_cannot_have_a_this_type_that_is_void);
            }
            return signature;
        }
        error(node, ts.Diagnostics.Cannot_use_new_with_an_expression_whose_type_lacks_a_call_or_construct_signature);
        return resolveErrorCall(node);
    }
    function isConstructorAccessible(node, signature) {
        if (!signature || !signature.declaration) {
            return true;
        }
        var declaration = signature.declaration;
        var modifiers = ts.getModifierFlags(declaration);
        if (!(modifiers & 24)) {
            return true;
        }
        var declaringClassDeclaration = getClassLikeDeclarationOfSymbol(declaration.parent.symbol);
        var declaringClass = getDeclaredTypeOfSymbol(declaration.parent.symbol);
        if (!isNodeWithinClass(node, declaringClassDeclaration)) {
            var containingClass = ts.getContainingClass(node);
            if (containingClass) {
                var containingType = getTypeOfNode(containingClass);
                var baseTypes = getBaseTypes(containingType);
                while (baseTypes.length) {
                    var baseType = baseTypes[0];
                    if (modifiers & 16 &&
                        baseType.symbol === declaration.parent.symbol) {
                        return true;
                    }
                    baseTypes = getBaseTypes(baseType);
                }
            }
            if (modifiers & 8) {
                error(node, ts.Diagnostics.Constructor_of_class_0_is_private_and_only_accessible_within_the_class_declaration, typeToString(declaringClass));
            }
            if (modifiers & 16) {
                error(node, ts.Diagnostics.Constructor_of_class_0_is_protected_and_only_accessible_within_the_class_declaration, typeToString(declaringClass));
            }
            return false;
        }
        return true;
    }
    function resolveTaggedTemplateExpression(node, candidatesOutArray) {
        var tagType = checkExpression(node.tag);
        var apparentType = getApparentType(tagType);
        if (apparentType === unknownType) {
            return resolveErrorCall(node);
        }
        var callSignatures = getSignaturesOfType(apparentType, 0);
        var constructSignatures = getSignaturesOfType(apparentType, 1);
        if (isUntypedFunctionCall(tagType, apparentType, callSignatures.length, constructSignatures.length)) {
            return resolveUntypedCall(node);
        }
        if (!callSignatures.length) {
            error(node, ts.Diagnostics.Cannot_invoke_an_expression_whose_type_lacks_a_call_signature_Type_0_has_no_compatible_call_signatures, typeToString(apparentType));
            return resolveErrorCall(node);
        }
        return resolveCall(node, callSignatures, candidatesOutArray);
    }
    function getDiagnosticHeadMessageForDecoratorResolution(node) {
        switch (node.parent.kind) {
            case 226:
            case 197:
                return ts.Diagnostics.Unable_to_resolve_signature_of_class_decorator_when_called_as_an_expression;
            case 144:
                return ts.Diagnostics.Unable_to_resolve_signature_of_parameter_decorator_when_called_as_an_expression;
            case 147:
                return ts.Diagnostics.Unable_to_resolve_signature_of_property_decorator_when_called_as_an_expression;
            case 149:
            case 151:
            case 152:
                return ts.Diagnostics.Unable_to_resolve_signature_of_method_decorator_when_called_as_an_expression;
        }
    }
    function resolveDecorator(node, candidatesOutArray) {
        var funcType = checkExpression(node.expression);
        var apparentType = getApparentType(funcType);
        if (apparentType === unknownType) {
            return resolveErrorCall(node);
        }
        var callSignatures = getSignaturesOfType(apparentType, 0);
        var constructSignatures = getSignaturesOfType(apparentType, 1);
        if (isUntypedFunctionCall(funcType, apparentType, callSignatures.length, constructSignatures.length)) {
            return resolveUntypedCall(node);
        }
        var headMessage = getDiagnosticHeadMessageForDecoratorResolution(node);
        if (!callSignatures.length) {
            var errorInfo = void 0;
            errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.Cannot_invoke_an_expression_whose_type_lacks_a_call_signature_Type_0_has_no_compatible_call_signatures, typeToString(apparentType));
            errorInfo = ts.chainDiagnosticMessages(errorInfo, headMessage);
            diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(node, errorInfo));
            return resolveErrorCall(node);
        }
        return resolveCall(node, callSignatures, candidatesOutArray, headMessage);
    }
    function resolveSignature(node, candidatesOutArray) {
        switch (node.kind) {
            case 179:
                return resolveCallExpression(node, candidatesOutArray);
            case 180:
                return resolveNewExpression(node, candidatesOutArray);
            case 181:
                return resolveTaggedTemplateExpression(node, candidatesOutArray);
            case 145:
                return resolveDecorator(node, candidatesOutArray);
        }
        ts.Debug.fail("Branch in 'resolveSignature' should be unreachable.");
    }
    function getResolvedSignature(node, candidatesOutArray) {
        var links = getNodeLinks(node);
        var cached = links.resolvedSignature;
        if (cached && cached !== resolvingSignature && !candidatesOutArray) {
            return cached;
        }
        links.resolvedSignature = resolvingSignature;
        var result = resolveSignature(node, candidatesOutArray);
        links.resolvedSignature = flowLoopStart === flowLoopCount ? result : cached;
        return result;
    }
    function getResolvedOrAnySignature(node) {
        return getNodeLinks(node).resolvedSignature === resolvingSignature ? resolvingSignature : getResolvedSignature(node);
    }
    function getInferredClassType(symbol) {
        var links = getSymbolLinks(symbol);
        if (!links.inferredClassType) {
            links.inferredClassType = createAnonymousType(symbol, symbol.members, emptyArray, emptyArray, undefined, undefined);
        }
        return links.inferredClassType;
    }
    function checkCallExpression(node) {
        checkGrammarTypeArguments(node, node.typeArguments) || checkGrammarArguments(node, node.arguments);
        var signature = getResolvedSignature(node);
        if (node.expression.kind === 96) {
            return voidType;
        }
        if (node.kind === 180) {
            var declaration = signature.declaration;
            if (declaration &&
                declaration.kind !== 150 &&
                declaration.kind !== 154 &&
                declaration.kind !== 159 &&
                !ts.isJSDocConstructSignature(declaration)) {
                var funcSymbol = node.expression.kind === 70 ?
                    getResolvedSymbol(node.expression) :
                    checkExpression(node.expression).symbol;
                if (funcSymbol && funcSymbol.members && (funcSymbol.flags & 16 || ts.isDeclarationOfFunctionExpression(funcSymbol))) {
                    return getInferredClassType(funcSymbol);
                }
                else if (compilerOptions.noImplicitAny) {
                    error(node, ts.Diagnostics.new_expression_whose_target_lacks_a_construct_signature_implicitly_has_an_any_type);
                }
                return anyType;
            }
        }
        if (ts.isInJavaScriptFile(node) && isCommonJsRequire(node)) {
            return resolveExternalModuleTypeByLiteral(node.arguments[0]);
        }
        return getReturnTypeOfSignature(signature);
    }
    function isCommonJsRequire(node) {
        if (!ts.isRequireCall(node, true)) {
            return false;
        }
        var resolvedRequire = resolveName(node.expression, node.expression.text, 107455, undefined, undefined);
        if (!resolvedRequire) {
            return true;
        }
        if (resolvedRequire.flags & 8388608) {
            return false;
        }
        var targetDeclarationKind = resolvedRequire.flags & 16
            ? 225
            : resolvedRequire.flags & 3
                ? 223
                : 0;
        if (targetDeclarationKind !== 0) {
            var decl = ts.getDeclarationOfKind(resolvedRequire, targetDeclarationKind);
            return ts.isInAmbientContext(decl);
        }
        return false;
    }
    function checkTaggedTemplateExpression(node) {
        return getReturnTypeOfSignature(getResolvedSignature(node));
    }
    function checkAssertion(node) {
        var exprType = getRegularTypeOfObjectLiteral(getBaseTypeOfLiteralType(checkExpression(node.expression)));
        checkSourceElement(node.type);
        var targetType = getTypeFromTypeNode(node.type);
        if (produceDiagnostics && targetType !== unknownType) {
            var widenedType = getWidenedType(exprType);
            if (!isTypeComparableTo(targetType, widenedType)) {
                checkTypeComparableTo(exprType, targetType, node, ts.Diagnostics.Type_0_cannot_be_converted_to_type_1);
            }
        }
        return targetType;
    }
    function checkNonNullAssertion(node) {
        return getNonNullableType(checkExpression(node.expression));
    }
    function getTypeOfParameter(symbol) {
        var type = getTypeOfSymbol(symbol);
        if (strictNullChecks) {
            var declaration = symbol.valueDeclaration;
            if (declaration && declaration.initializer) {
                return includeFalsyTypes(type, 2048);
            }
        }
        return type;
    }
    function getTypeAtPosition(signature, pos) {
        return signature.hasRestParameter ?
            pos < signature.parameters.length - 1 ? getTypeOfParameter(signature.parameters[pos]) : getRestTypeOfSignature(signature) :
            pos < signature.parameters.length ? getTypeOfParameter(signature.parameters[pos]) : anyType;
    }
    function assignContextualParameterTypes(signature, context, mapper) {
        var len = signature.parameters.length - (signature.hasRestParameter ? 1 : 0);
        if (isInferentialContext(mapper)) {
            for (var i = 0; i < len; i++) {
                var declaration = signature.parameters[i].valueDeclaration;
                if (declaration.type) {
                    inferTypesWithContext(mapper.context, getTypeFromTypeNode(declaration.type), getTypeAtPosition(context, i));
                }
            }
        }
        if (context.thisParameter) {
            var parameter = signature.thisParameter;
            if (!parameter || parameter.valueDeclaration && !parameter.valueDeclaration.type) {
                if (!parameter) {
                    signature.thisParameter = createTransientSymbol(context.thisParameter, undefined);
                }
                assignTypeToParameterAndFixTypeParameters(signature.thisParameter, getTypeOfSymbol(context.thisParameter), mapper);
            }
        }
        for (var i = 0; i < len; i++) {
            var parameter = signature.parameters[i];
            if (!parameter.valueDeclaration.type) {
                var contextualParameterType = getTypeAtPosition(context, i);
                assignTypeToParameterAndFixTypeParameters(parameter, contextualParameterType, mapper);
            }
        }
        if (signature.hasRestParameter && isRestParameterIndex(context, signature.parameters.length - 1)) {
            var parameter = ts.lastOrUndefined(signature.parameters);
            if (!parameter.valueDeclaration.type) {
                var contextualParameterType = getTypeOfSymbol(ts.lastOrUndefined(context.parameters));
                assignTypeToParameterAndFixTypeParameters(parameter, contextualParameterType, mapper);
            }
        }
    }
    function assignBindingElementTypes(node) {
        if (ts.isBindingPattern(node.name)) {
            for (var _i = 0, _a = node.name.elements; _i < _a.length; _i++) {
                var element = _a[_i];
                if (!ts.isOmittedExpression(element)) {
                    if (element.name.kind === 70) {
                        getSymbolLinks(getSymbolOfNode(element)).type = getTypeForBindingElement(element);
                    }
                    assignBindingElementTypes(element);
                }
            }
        }
    }
    function assignTypeToParameterAndFixTypeParameters(parameter, contextualType, mapper) {
        var links = getSymbolLinks(parameter);
        if (!links.type) {
            links.type = instantiateType(contextualType, mapper);
            if (links.type === emptyObjectType &&
                (parameter.valueDeclaration.name.kind === 172 ||
                    parameter.valueDeclaration.name.kind === 173)) {
                links.type = getTypeFromBindingPattern(parameter.valueDeclaration.name);
            }
            assignBindingElementTypes(parameter.valueDeclaration);
        }
        else if (isInferentialContext(mapper)) {
            inferTypesWithContext(mapper.context, links.type, instantiateType(contextualType, mapper));
        }
    }
    function getReturnTypeFromJSDocComment(func) {
        var returnTag = ts.getJSDocReturnTag(func);
        if (returnTag && returnTag.typeExpression) {
            return getTypeFromTypeNode(returnTag.typeExpression.type);
        }
        return undefined;
    }
    function createPromiseType(promisedType) {
        var globalPromiseType = getGlobalPromiseType();
        if (globalPromiseType !== emptyGenericType) {
            promisedType = getAwaitedType(promisedType);
            return createTypeReference(globalPromiseType, [promisedType]);
        }
        return emptyObjectType;
    }
    function createPromiseReturnType(func, promisedType) {
        var promiseType = createPromiseType(promisedType);
        if (promiseType === emptyObjectType) {
            error(func, ts.Diagnostics.An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES2015_in_your_lib_option);
            return unknownType;
        }
        return promiseType;
    }
    function getReturnTypeFromBody(func, contextualMapper) {
        var contextualSignature = getContextualSignatureForFunctionLikeDeclaration(func);
        if (!func.body) {
            return unknownType;
        }
        var isAsync = ts.isAsyncFunctionLike(func);
        var type;
        if (func.body.kind !== 204) {
            type = checkExpressionCached(func.body, contextualMapper);
            if (isAsync) {
                type = checkAwaitedType(type, func, ts.Diagnostics.Return_expression_in_async_function_does_not_have_a_valid_callable_then_member);
            }
        }
        else {
            var types = void 0;
            var funcIsGenerator = !!func.asteriskToken;
            if (funcIsGenerator) {
                types = checkAndAggregateYieldOperandTypes(func, contextualMapper);
                if (types.length === 0) {
                    var iterableIteratorAny = createIterableIteratorType(anyType);
                    if (compilerOptions.noImplicitAny) {
                        error(func.asteriskToken, ts.Diagnostics.Generator_implicitly_has_type_0_because_it_does_not_yield_any_values_Consider_supplying_a_return_type, typeToString(iterableIteratorAny));
                    }
                    return iterableIteratorAny;
                }
            }
            else {
                types = checkAndAggregateReturnExpressionTypes(func, contextualMapper);
                if (!types) {
                    return isAsync ? createPromiseReturnType(func, neverType) : neverType;
                }
                if (types.length === 0) {
                    return isAsync ? createPromiseReturnType(func, voidType) : voidType;
                }
            }
            type = getUnionType(types, true);
            if (funcIsGenerator) {
                type = createIterableIteratorType(type);
            }
        }
        if (!contextualSignature) {
            reportErrorsFromWidening(func, type);
        }
        if (isUnitType(type) &&
            !(contextualSignature &&
                isLiteralContextualType(contextualSignature === getSignatureFromDeclaration(func) ? type : getReturnTypeOfSignature(contextualSignature)))) {
            type = getWidenedLiteralType(type);
        }
        var widenedType = getWidenedType(type);
        return isAsync ? createPromiseReturnType(func, widenedType) : widenedType;
    }
    function checkAndAggregateYieldOperandTypes(func, contextualMapper) {
        var aggregatedTypes = [];
        ts.forEachYieldExpression(func.body, function (yieldExpression) {
            var expr = yieldExpression.expression;
            if (expr) {
                var type = checkExpressionCached(expr, contextualMapper);
                if (yieldExpression.asteriskToken) {
                    type = checkElementTypeOfIterable(type, yieldExpression.expression);
                }
                if (!ts.contains(aggregatedTypes, type)) {
                    aggregatedTypes.push(type);
                }
            }
        });
        return aggregatedTypes;
    }
    function isExhaustiveSwitchStatement(node) {
        if (!node.possiblyExhaustive) {
            return false;
        }
        var type = getTypeOfExpression(node.expression);
        if (!isLiteralType(type)) {
            return false;
        }
        var switchTypes = getSwitchClauseTypes(node);
        if (!switchTypes.length) {
            return false;
        }
        return eachTypeContainedIn(mapType(type, getRegularTypeOfLiteralType), switchTypes);
    }
    function functionHasImplicitReturn(func) {
        if (!(func.flags & 128)) {
            return false;
        }
        var lastStatement = ts.lastOrUndefined(func.body.statements);
        if (lastStatement && lastStatement.kind === 218 && isExhaustiveSwitchStatement(lastStatement)) {
            return false;
        }
        return true;
    }
    function checkAndAggregateReturnExpressionTypes(func, contextualMapper) {
        var isAsync = ts.isAsyncFunctionLike(func);
        var aggregatedTypes = [];
        var hasReturnWithNoExpression = functionHasImplicitReturn(func);
        var hasReturnOfTypeNever = false;
        ts.forEachReturnStatement(func.body, function (returnStatement) {
            var expr = returnStatement.expression;
            if (expr) {
                var type = checkExpressionCached(expr, contextualMapper);
                if (isAsync) {
                    type = checkAwaitedType(type, func, ts.Diagnostics.Return_expression_in_async_function_does_not_have_a_valid_callable_then_member);
                }
                if (type.flags & 8192) {
                    hasReturnOfTypeNever = true;
                }
                else if (!ts.contains(aggregatedTypes, type)) {
                    aggregatedTypes.push(type);
                }
            }
            else {
                hasReturnWithNoExpression = true;
            }
        });
        if (aggregatedTypes.length === 0 && !hasReturnWithNoExpression && (hasReturnOfTypeNever ||
            func.kind === 184 || func.kind === 185)) {
            return undefined;
        }
        if (strictNullChecks && aggregatedTypes.length && hasReturnWithNoExpression) {
            if (!ts.contains(aggregatedTypes, undefinedType)) {
                aggregatedTypes.push(undefinedType);
            }
        }
        return aggregatedTypes;
    }
    function checkAllCodePathsInNonVoidFunctionReturnOrThrow(func, returnType) {
        if (!produceDiagnostics) {
            return;
        }
        if (returnType && maybeTypeOfKind(returnType, 1 | 1024)) {
            return;
        }
        if (ts.nodeIsMissing(func.body) || func.body.kind !== 204 || !functionHasImplicitReturn(func)) {
            return;
        }
        var hasExplicitReturn = func.flags & 256;
        if (returnType && returnType.flags & 8192) {
            error(func.type, ts.Diagnostics.A_function_returning_never_cannot_have_a_reachable_end_point);
        }
        else if (returnType && !hasExplicitReturn) {
            error(func.type, ts.Diagnostics.A_function_whose_declared_type_is_neither_void_nor_any_must_return_a_value);
        }
        else if (returnType && strictNullChecks && !isTypeAssignableTo(undefinedType, returnType)) {
            error(func.type, ts.Diagnostics.Function_lacks_ending_return_statement_and_return_type_does_not_include_undefined);
        }
        else if (compilerOptions.noImplicitReturns) {
            if (!returnType) {
                if (!hasExplicitReturn) {
                    return;
                }
                var inferredReturnType = getReturnTypeOfSignature(getSignatureFromDeclaration(func));
                if (isUnwrappedReturnTypeVoidOrAny(func, inferredReturnType)) {
                    return;
                }
            }
            error(func.type || func, ts.Diagnostics.Not_all_code_paths_return_a_value);
        }
    }
    function checkFunctionExpressionOrObjectLiteralMethod(node, contextualMapper) {
        ts.Debug.assert(node.kind !== 149 || ts.isObjectLiteralMethod(node));
        var hasGrammarError = checkGrammarFunctionLikeDeclaration(node);
        if (!hasGrammarError && node.kind === 184) {
            checkGrammarForGenerator(node);
        }
        if (contextualMapper === identityMapper && isContextSensitive(node)) {
            checkNodeDeferred(node);
            return anyFunctionType;
        }
        var links = getNodeLinks(node);
        var type = getTypeOfSymbol(node.symbol);
        var contextSensitive = isContextSensitive(node);
        var mightFixTypeParameters = contextSensitive && isInferentialContext(contextualMapper);
        if (mightFixTypeParameters || !(links.flags & 1024)) {
            var contextualSignature = getContextualSignature(node);
            var contextChecked = !!(links.flags & 1024);
            if (mightFixTypeParameters || !contextChecked) {
                links.flags |= 1024;
                if (contextualSignature) {
                    var signature = getSignaturesOfType(type, 0)[0];
                    if (contextSensitive) {
                        assignContextualParameterTypes(signature, contextualSignature, contextualMapper || identityMapper);
                    }
                    if (mightFixTypeParameters || !node.type && !signature.resolvedReturnType) {
                        var returnType = getReturnTypeFromBody(node, contextualMapper);
                        if (!signature.resolvedReturnType) {
                            signature.resolvedReturnType = returnType;
                        }
                    }
                }
                if (!contextChecked) {
                    checkSignatureDeclaration(node);
                    checkNodeDeferred(node);
                }
            }
        }
        if (produceDiagnostics && node.kind !== 149) {
            checkCollisionWithCapturedSuperVariable(node, node.name);
            checkCollisionWithCapturedThisVariable(node, node.name);
        }
        return type;
    }
    function checkFunctionExpressionOrObjectLiteralMethodDeferred(node) {
        ts.Debug.assert(node.kind !== 149 || ts.isObjectLiteralMethod(node));
        var isAsync = ts.isAsyncFunctionLike(node);
        var returnOrPromisedType = node.type && (isAsync ? checkAsyncFunctionReturnType(node) : getTypeFromTypeNode(node.type));
        if (!node.asteriskToken) {
            checkAllCodePathsInNonVoidFunctionReturnOrThrow(node, returnOrPromisedType);
        }
        if (node.body) {
            if (!node.type) {
                getReturnTypeOfSignature(getSignatureFromDeclaration(node));
            }
            if (node.body.kind === 204) {
                checkSourceElement(node.body);
            }
            else {
                var exprType = checkExpression(node.body);
                if (returnOrPromisedType) {
                    if (isAsync) {
                        var awaitedType = checkAwaitedType(exprType, node.body, ts.Diagnostics.Expression_body_for_async_arrow_function_does_not_have_a_valid_callable_then_member);
                        checkTypeAssignableTo(awaitedType, returnOrPromisedType, node.body);
                    }
                    else {
                        checkTypeAssignableTo(exprType, returnOrPromisedType, node.body);
                    }
                }
            }
            registerForUnusedIdentifiersCheck(node);
        }
    }
    function checkArithmeticOperandType(operand, type, diagnostic) {
        if (!isTypeAnyOrAllConstituentTypesHaveKind(type, 340)) {
            error(operand, diagnostic);
            return false;
        }
        return true;
    }
    function isReadonlySymbol(symbol) {
        return symbol.isReadonly ||
            symbol.flags & 4 && (getDeclarationModifierFlagsFromSymbol(symbol) & 64) !== 0 ||
            symbol.flags & 3 && (getDeclarationNodeFlagsFromSymbol(symbol) & 2) !== 0 ||
            symbol.flags & 98304 && !(symbol.flags & 65536) ||
            (symbol.flags & 8) !== 0;
    }
    function isReferenceToReadonlyEntity(expr, symbol) {
        if (isReadonlySymbol(symbol)) {
            if (symbol.flags & 4 &&
                (expr.kind === 177 || expr.kind === 178) &&
                expr.expression.kind === 98) {
                var func = ts.getContainingFunction(expr);
                if (!(func && func.kind === 150))
                    return true;
                return !(func.parent === symbol.valueDeclaration.parent || func === symbol.valueDeclaration.parent);
            }
            return true;
        }
        return false;
    }
    function isReferenceThroughNamespaceImport(expr) {
        if (expr.kind === 177 || expr.kind === 178) {
            var node = ts.skipParentheses(expr.expression);
            if (node.kind === 70) {
                var symbol = getNodeLinks(node).resolvedSymbol;
                if (symbol.flags & 8388608) {
                    var declaration = getDeclarationOfAliasSymbol(symbol);
                    return declaration && declaration.kind === 237;
                }
            }
        }
        return false;
    }
    function checkReferenceExpression(expr, invalidReferenceMessage) {
        var node = ts.skipParentheses(expr);
        if (node.kind !== 70 && node.kind !== 177 && node.kind !== 178) {
            error(expr, invalidReferenceMessage);
            return false;
        }
        return true;
    }
    function checkDeleteExpression(node) {
        checkExpression(node.expression);
        return booleanType;
    }
    function checkTypeOfExpression(node) {
        checkExpression(node.expression);
        return stringType;
    }
    function checkVoidExpression(node) {
        checkExpression(node.expression);
        return undefinedWideningType;
    }
    function checkAwaitExpression(node) {
        if (produceDiagnostics) {
            if (!(node.flags & 16384)) {
                grammarErrorOnFirstToken(node, ts.Diagnostics.await_expression_is_only_allowed_within_an_async_function);
            }
            if (isInParameterInitializerBeforeContainingFunction(node)) {
                error(node, ts.Diagnostics.await_expressions_cannot_be_used_in_a_parameter_initializer);
            }
        }
        var operandType = checkExpression(node.expression);
        return checkAwaitedType(operandType, node);
    }
    function checkPrefixUnaryExpression(node) {
        var operandType = checkExpression(node.operand);
        if (operandType === silentNeverType) {
            return silentNeverType;
        }
        if (node.operator === 37 && node.operand.kind === 8) {
            return getFreshTypeOfLiteralType(getLiteralTypeForText(64, "" + -node.operand.text));
        }
        switch (node.operator) {
            case 36:
            case 37:
            case 51:
                if (maybeTypeOfKind(operandType, 512)) {
                    error(node.operand, ts.Diagnostics.The_0_operator_cannot_be_applied_to_type_symbol, ts.tokenToString(node.operator));
                }
                return numberType;
            case 50:
                var facts = getTypeFacts(operandType) & (1048576 | 2097152);
                return facts === 1048576 ? falseType :
                    facts === 2097152 ? trueType :
                        booleanType;
            case 42:
            case 43:
                var ok = checkArithmeticOperandType(node.operand, getNonNullableType(operandType), ts.Diagnostics.An_arithmetic_operand_must_be_of_type_any_number_or_an_enum_type);
                if (ok) {
                    checkReferenceExpression(node.operand, ts.Diagnostics.The_operand_of_an_increment_or_decrement_operator_must_be_a_variable_or_a_property_access);
                }
                return numberType;
        }
        return unknownType;
    }
    function checkPostfixUnaryExpression(node) {
        var operandType = checkExpression(node.operand);
        if (operandType === silentNeverType) {
            return silentNeverType;
        }
        var ok = checkArithmeticOperandType(node.operand, getNonNullableType(operandType), ts.Diagnostics.An_arithmetic_operand_must_be_of_type_any_number_or_an_enum_type);
        if (ok) {
            checkReferenceExpression(node.operand, ts.Diagnostics.The_operand_of_an_increment_or_decrement_operator_must_be_a_variable_or_a_property_access);
        }
        return numberType;
    }
    function maybeTypeOfKind(type, kind) {
        if (type.flags & kind) {
            return true;
        }
        if (type.flags & 196608) {
            var types = type.types;
            for (var _i = 0, types_15 = types; _i < types_15.length; _i++) {
                var t = types_15[_i];
                if (maybeTypeOfKind(t, kind)) {
                    return true;
                }
            }
        }
        return false;
    }
    function isTypeOfKind(type, kind) {
        if (type.flags & kind) {
            return true;
        }
        if (type.flags & 65536) {
            var types = type.types;
            for (var _i = 0, types_16 = types; _i < types_16.length; _i++) {
                var t = types_16[_i];
                if (!isTypeOfKind(t, kind)) {
                    return false;
                }
            }
            return true;
        }
        if (type.flags & 131072) {
            var types = type.types;
            for (var _a = 0, types_17 = types; _a < types_17.length; _a++) {
                var t = types_17[_a];
                if (isTypeOfKind(t, kind)) {
                    return true;
                }
            }
        }
        return false;
    }
    function isConstEnumObjectType(type) {
        return getObjectFlags(type) & 16 && type.symbol && isConstEnumSymbol(type.symbol);
    }
    function isConstEnumSymbol(symbol) {
        return (symbol.flags & 128) !== 0;
    }
    function checkInstanceOfExpression(left, right, leftType, rightType) {
        if (leftType === silentNeverType || rightType === silentNeverType) {
            return silentNeverType;
        }
        if (isTypeOfKind(leftType, 8190)) {
            error(left, ts.Diagnostics.The_left_hand_side_of_an_instanceof_expression_must_be_of_type_any_an_object_type_or_a_type_parameter);
        }
        if (!(isTypeAny(rightType) || isTypeSubtypeOf(rightType, globalFunctionType))) {
            error(right, ts.Diagnostics.The_right_hand_side_of_an_instanceof_expression_must_be_of_type_any_or_of_a_type_assignable_to_the_Function_interface_type);
        }
        return booleanType;
    }
    function checkInExpression(left, right, leftType, rightType) {
        if (leftType === silentNeverType || rightType === silentNeverType) {
            return silentNeverType;
        }
        if (!(isTypeComparableTo(leftType, stringType) || isTypeOfKind(leftType, 340 | 512))) {
            error(left, ts.Diagnostics.The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol);
        }
        if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 540672)) {
            error(right, ts.Diagnostics.The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter);
        }
        return booleanType;
    }
    function checkObjectLiteralAssignment(node, sourceType) {
        var properties = node.properties;
        for (var _i = 0, properties_6 = properties; _i < properties_6.length; _i++) {
            var p = properties_6[_i];
            checkObjectLiteralDestructuringPropertyAssignment(sourceType, p, properties);
        }
        return sourceType;
    }
    function checkObjectLiteralDestructuringPropertyAssignment(objectLiteralType, property, allProperties) {
        if (property.kind === 257 || property.kind === 258) {
            var name_20 = property.name;
            if (name_20.kind === 142) {
                checkComputedPropertyName(name_20);
            }
            if (isComputedNonLiteralName(name_20)) {
                return undefined;
            }
            var text = ts.getTextOfPropertyName(name_20);
            var type = isTypeAny(objectLiteralType)
                ? objectLiteralType
                : getTypeOfPropertyOfType(objectLiteralType, text) ||
                    isNumericLiteralName(text) && getIndexTypeOfType(objectLiteralType, 1) ||
                    getIndexTypeOfType(objectLiteralType, 0);
            if (type) {
                if (property.kind === 258) {
                    return checkDestructuringAssignment(property, type);
                }
                else {
                    return checkDestructuringAssignment(property.initializer, type);
                }
            }
            else {
                error(name_20, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(objectLiteralType), ts.declarationNameToString(name_20));
            }
        }
        else if (property.kind === 259) {
            if (languageVersion < 5) {
                checkExternalEmitHelpers(property, 4);
            }
            var nonRestNames = [];
            if (allProperties) {
                for (var i = 0; i < allProperties.length - 1; i++) {
                    nonRestNames.push(allProperties[i].name);
                }
            }
            var type = getRestType(objectLiteralType, nonRestNames, objectLiteralType.symbol);
            return checkDestructuringAssignment(property.expression, type);
        }
        else {
            error(property, ts.Diagnostics.Property_assignment_expected);
        }
    }
    function checkArrayLiteralAssignment(node, sourceType, contextualMapper) {
        var elementType = checkIteratedTypeOrElementType(sourceType, node, false) || unknownType;
        var elements = node.elements;
        for (var i = 0; i < elements.length; i++) {
            checkArrayLiteralDestructuringElementAssignment(node, sourceType, i, elementType, contextualMapper);
        }
        return sourceType;
    }
    function checkArrayLiteralDestructuringElementAssignment(node, sourceType, elementIndex, elementType, contextualMapper) {
        var elements = node.elements;
        var element = elements[elementIndex];
        if (element.kind !== 198) {
            if (element.kind !== 196) {
                var propName = "" + elementIndex;
                var type = isTypeAny(sourceType)
                    ? sourceType
                    : isTupleLikeType(sourceType)
                        ? getTypeOfPropertyOfType(sourceType, propName)
                        : elementType;
                if (type) {
                    return checkDestructuringAssignment(element, type, contextualMapper);
                }
                else {
                    checkExpression(element);
                    if (isTupleType(sourceType)) {
                        error(element, ts.Diagnostics.Tuple_type_0_with_length_1_cannot_be_assigned_to_tuple_with_length_2, typeToString(sourceType), getTypeReferenceArity(sourceType), elements.length);
                    }
                    else {
                        error(element, ts.Diagnostics.Type_0_has_no_property_1, typeToString(sourceType), propName);
                    }
                }
            }
            else {
                if (elementIndex < elements.length - 1) {
                    error(element, ts.Diagnostics.A_rest_element_must_be_last_in_a_destructuring_pattern);
                }
                else {
                    var restExpression = element.expression;
                    if (restExpression.kind === 192 && restExpression.operatorToken.kind === 57) {
                        error(restExpression.operatorToken, ts.Diagnostics.A_rest_element_cannot_have_an_initializer);
                    }
                    else {
                        return checkDestructuringAssignment(restExpression, createArrayType(elementType), contextualMapper);
                    }
                }
            }
        }
        return undefined;
    }
    function checkDestructuringAssignment(exprOrAssignment, sourceType, contextualMapper) {
        var target;
        if (exprOrAssignment.kind === 258) {
            var prop = exprOrAssignment;
            if (prop.objectAssignmentInitializer) {
                if (strictNullChecks &&
                    !(getFalsyFlags(checkExpression(prop.objectAssignmentInitializer)) & 2048)) {
                    sourceType = getTypeWithFacts(sourceType, 131072);
                }
                checkBinaryLikeExpression(prop.name, prop.equalsToken, prop.objectAssignmentInitializer, contextualMapper);
            }
            target = exprOrAssignment.name;
        }
        else {
            target = exprOrAssignment;
        }
        if (target.kind === 192 && target.operatorToken.kind === 57) {
            checkBinaryExpression(target, contextualMapper);
            target = target.left;
        }
        if (target.kind === 176) {
            return checkObjectLiteralAssignment(target, sourceType);
        }
        if (target.kind === 175) {
            return checkArrayLiteralAssignment(target, sourceType, contextualMapper);
        }
        return checkReferenceAssignment(target, sourceType, contextualMapper);
    }
    function checkReferenceAssignment(target, sourceType, contextualMapper) {
        var targetType = checkExpression(target, contextualMapper);
        var error = target.parent.kind === 259 ?
            ts.Diagnostics.The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access :
            ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access;
        if (checkReferenceExpression(target, error)) {
            checkTypeAssignableTo(sourceType, targetType, target, undefined);
        }
        return sourceType;
    }
    function isSideEffectFree(node) {
        node = ts.skipParentheses(node);
        switch (node.kind) {
            case 70:
            case 9:
            case 11:
            case 181:
            case 194:
            case 12:
            case 8:
            case 100:
            case 85:
            case 94:
            case 137:
            case 184:
            case 197:
            case 185:
            case 175:
            case 176:
            case 187:
            case 201:
            case 247:
            case 246:
                return true;
            case 193:
                return isSideEffectFree(node.whenTrue) &&
                    isSideEffectFree(node.whenFalse);
            case 192:
                if (ts.isAssignmentOperator(node.operatorToken.kind)) {
                    return false;
                }
                return isSideEffectFree(node.left) &&
                    isSideEffectFree(node.right);
            case 190:
            case 191:
                switch (node.operator) {
                    case 50:
                    case 36:
                    case 37:
                    case 51:
                        return true;
                }
                return false;
            case 188:
            case 182:
            case 200:
            default:
                return false;
        }
    }
    function isTypeEqualityComparableTo(source, target) {
        return (target.flags & 6144) !== 0 || isTypeComparableTo(source, target);
    }
    function getBestChoiceType(type1, type2) {
        var firstAssignableToSecond = isTypeAssignableTo(type1, type2);
        var secondAssignableToFirst = isTypeAssignableTo(type2, type1);
        return secondAssignableToFirst && !firstAssignableToSecond ? type1 :
            firstAssignableToSecond && !secondAssignableToFirst ? type2 :
                getUnionType([type1, type2], true);
    }
    function checkBinaryExpression(node, contextualMapper) {
        return checkBinaryLikeExpression(node.left, node.operatorToken, node.right, contextualMapper, node);
    }
    function checkBinaryLikeExpression(left, operatorToken, right, contextualMapper, errorNode) {
        var operator = operatorToken.kind;
        if (operator === 57 && (left.kind === 176 || left.kind === 175)) {
            return checkDestructuringAssignment(left, checkExpression(right, contextualMapper), contextualMapper);
        }
        var leftType = checkExpression(left, contextualMapper);
        var rightType = checkExpression(right, contextualMapper);
        switch (operator) {
            case 38:
            case 39:
            case 60:
            case 61:
            case 40:
            case 62:
            case 41:
            case 63:
            case 37:
            case 59:
            case 44:
            case 64:
            case 45:
            case 65:
            case 46:
            case 66:
            case 48:
            case 68:
            case 49:
            case 69:
            case 47:
            case 67:
                if (leftType === silentNeverType || rightType === silentNeverType) {
                    return silentNeverType;
                }
                if (leftType.flags & 6144)
                    leftType = rightType;
                if (rightType.flags & 6144)
                    rightType = leftType;
                leftType = getNonNullableType(leftType);
                rightType = getNonNullableType(rightType);
                var suggestedOperator = void 0;
                if ((leftType.flags & 136) &&
                    (rightType.flags & 136) &&
                    (suggestedOperator = getSuggestedBooleanOperator(operatorToken.kind)) !== undefined) {
                    error(errorNode || operatorToken, ts.Diagnostics.The_0_operator_is_not_allowed_for_boolean_types_Consider_using_1_instead, ts.tokenToString(operatorToken.kind), ts.tokenToString(suggestedOperator));
                }
                else {
                    var leftOk = checkArithmeticOperandType(left, leftType, ts.Diagnostics.The_left_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type);
                    var rightOk = checkArithmeticOperandType(right, rightType, ts.Diagnostics.The_right_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type);
                    if (leftOk && rightOk) {
                        checkAssignmentOperator(numberType);
                    }
                }
                return numberType;
            case 36:
            case 58:
                if (leftType === silentNeverType || rightType === silentNeverType) {
                    return silentNeverType;
                }
                if (leftType.flags & 6144)
                    leftType = rightType;
                if (rightType.flags & 6144)
                    rightType = leftType;
                leftType = getNonNullableType(leftType);
                rightType = getNonNullableType(rightType);
                var resultType = void 0;
                if (isTypeOfKind(leftType, 340) && isTypeOfKind(rightType, 340)) {
                    resultType = numberType;
                }
                else {
                    if (isTypeOfKind(leftType, 262178) || isTypeOfKind(rightType, 262178)) {
                        resultType = stringType;
                    }
                    else if (isTypeAny(leftType) || isTypeAny(rightType)) {
                        resultType = leftType === unknownType || rightType === unknownType ? unknownType : anyType;
                    }
                    if (resultType && !checkForDisallowedESSymbolOperand(operator)) {
                        return resultType;
                    }
                }
                if (!resultType) {
                    reportOperatorError();
                    return anyType;
                }
                if (operator === 58) {
                    checkAssignmentOperator(resultType);
                }
                return resultType;
            case 26:
            case 28:
            case 29:
            case 30:
                if (checkForDisallowedESSymbolOperand(operator)) {
                    leftType = getBaseTypeOfLiteralType(leftType);
                    rightType = getBaseTypeOfLiteralType(rightType);
                    if (!isTypeComparableTo(leftType, rightType) && !isTypeComparableTo(rightType, leftType)) {
                        reportOperatorError();
                    }
                }
                return booleanType;
            case 31:
            case 32:
            case 33:
            case 34:
                var leftIsLiteral = isLiteralType(leftType);
                var rightIsLiteral = isLiteralType(rightType);
                if (!leftIsLiteral || !rightIsLiteral) {
                    leftType = leftIsLiteral ? getBaseTypeOfLiteralType(leftType) : leftType;
                    rightType = rightIsLiteral ? getBaseTypeOfLiteralType(rightType) : rightType;
                }
                if (!isTypeEqualityComparableTo(leftType, rightType) && !isTypeEqualityComparableTo(rightType, leftType)) {
                    reportOperatorError();
                }
                return booleanType;
            case 92:
                return checkInstanceOfExpression(left, right, leftType, rightType);
            case 91:
                return checkInExpression(left, right, leftType, rightType);
            case 52:
                return getTypeFacts(leftType) & 1048576 ?
                    includeFalsyTypes(rightType, getFalsyFlags(strictNullChecks ? leftType : getBaseTypeOfLiteralType(rightType))) :
                    leftType;
            case 53:
                return getTypeFacts(leftType) & 2097152 ?
                    getBestChoiceType(removeDefinitelyFalsyTypes(leftType), rightType) :
                    leftType;
            case 57:
                checkAssignmentOperator(rightType);
                return getRegularTypeOfObjectLiteral(rightType);
            case 25:
                if (!compilerOptions.allowUnreachableCode && isSideEffectFree(left)) {
                    error(left, ts.Diagnostics.Left_side_of_comma_operator_is_unused_and_has_no_side_effects);
                }
                return rightType;
        }
        function checkForDisallowedESSymbolOperand(operator) {
            var offendingSymbolOperand = maybeTypeOfKind(leftType, 512) ? left :
                maybeTypeOfKind(rightType, 512) ? right :
                    undefined;
            if (offendingSymbolOperand) {
                error(offendingSymbolOperand, ts.Diagnostics.The_0_operator_cannot_be_applied_to_type_symbol, ts.tokenToString(operator));
                return false;
            }
            return true;
        }
        function getSuggestedBooleanOperator(operator) {
            switch (operator) {
                case 48:
                case 68:
                    return 53;
                case 49:
                case 69:
                    return 34;
                case 47:
                case 67:
                    return 52;
                default:
                    return undefined;
            }
        }
        function checkAssignmentOperator(valueType) {
            if (produceDiagnostics && operator >= 57 && operator <= 69) {
                if (checkReferenceExpression(left, ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access)) {
                    checkTypeAssignableTo(valueType, leftType, left, undefined);
                }
            }
        }
        function reportOperatorError() {
            error(errorNode || operatorToken, ts.Diagnostics.Operator_0_cannot_be_applied_to_types_1_and_2, ts.tokenToString(operatorToken.kind), typeToString(leftType), typeToString(rightType));
        }
    }
    function isYieldExpressionInClass(node) {
        var current = node;
        var parent = node.parent;
        while (parent) {
            if (ts.isFunctionLike(parent) && current === parent.body) {
                return false;
            }
            else if (ts.isClassLike(current)) {
                return true;
            }
            current = parent;
            parent = parent.parent;
        }
        return false;
    }
    function checkYieldExpression(node) {
        if (produceDiagnostics) {
            if (!(node.flags & 4096) || isYieldExpressionInClass(node)) {
                grammarErrorOnFirstToken(node, ts.Diagnostics.A_yield_expression_is_only_allowed_in_a_generator_body);
            }
            if (isInParameterInitializerBeforeContainingFunction(node)) {
                error(node, ts.Diagnostics.yield_expressions_cannot_be_used_in_a_parameter_initializer);
            }
        }
        if (node.expression) {
            var func = ts.getContainingFunction(node);
            if (func && func.asteriskToken) {
                var expressionType = checkExpressionCached(node.expression, undefined);
                var expressionElementType = void 0;
                var nodeIsYieldStar = !!node.asteriskToken;
                if (nodeIsYieldStar) {
                    expressionElementType = checkElementTypeOfIterable(expressionType, node.expression);
                }
                if (func.type) {
                    var signatureElementType = getElementTypeOfIterableIterator(getTypeFromTypeNode(func.type)) || anyType;
                    if (nodeIsYieldStar) {
                        checkTypeAssignableTo(expressionElementType, signatureElementType, node.expression, undefined);
                    }
                    else {
                        checkTypeAssignableTo(expressionType, signatureElementType, node.expression, undefined);
                    }
                }
            }
        }
        return anyType;
    }
    function checkConditionalExpression(node, contextualMapper) {
        checkExpression(node.condition);
        var type1 = checkExpression(node.whenTrue, contextualMapper);
        var type2 = checkExpression(node.whenFalse, contextualMapper);
        return getBestChoiceType(type1, type2);
    }
    function checkLiteralExpression(node) {
        if (node.kind === 8) {
            checkGrammarNumericLiteral(node);
        }
        switch (node.kind) {
            case 9:
                return getFreshTypeOfLiteralType(getLiteralTypeForText(32, node.text));
            case 8:
                return getFreshTypeOfLiteralType(getLiteralTypeForText(64, node.text));
            case 100:
                return trueType;
            case 85:
                return falseType;
        }
    }
    function checkTemplateExpression(node) {
        ts.forEach(node.templateSpans, function (templateSpan) {
            checkExpression(templateSpan.expression);
        });
        return stringType;
    }
    function checkExpressionWithContextualType(node, contextualType, contextualMapper) {
        var saveContextualType = node.contextualType;
        node.contextualType = contextualType;
        var result = checkExpression(node, contextualMapper);
        node.contextualType = saveContextualType;
        return result;
    }
    function checkExpressionCached(node, contextualMapper) {
        var links = getNodeLinks(node);
        if (!links.resolvedType) {
            var saveFlowLoopStart = flowLoopStart;
            flowLoopStart = flowLoopCount;
            links.resolvedType = checkExpression(node, contextualMapper);
            flowLoopStart = saveFlowLoopStart;
        }
        return links.resolvedType;
    }
    function isTypeAssertion(node) {
        node = ts.skipParentheses(node);
        return node.kind === 182 || node.kind === 200;
    }
    function checkDeclarationInitializer(declaration) {
        var type = checkExpressionCached(declaration.initializer);
        return ts.getCombinedNodeFlags(declaration) & 2 ||
            ts.getCombinedModifierFlags(declaration) & 64 && !ts.isParameterPropertyDeclaration(declaration) ||
            isTypeAssertion(declaration.initializer) ? type : getWidenedLiteralType(type);
    }
    function isLiteralContextualType(contextualType) {
        if (contextualType) {
            if (contextualType.flags & 540672) {
                var apparentType = getApparentTypeOfTypeVariable(contextualType);
                if (apparentType.flags & (2 | 4 | 8 | 16)) {
                    return true;
                }
                contextualType = apparentType;
            }
            return maybeTypeOfKind(contextualType, (480 | 262144));
        }
        return false;
    }
    function checkExpressionForMutableLocation(node, contextualMapper) {
        var type = checkExpression(node, contextualMapper);
        return isTypeAssertion(node) || isLiteralContextualType(getContextualType(node)) ? type : getWidenedLiteralType(type);
    }
    function checkPropertyAssignment(node, contextualMapper) {
        if (node.name.kind === 142) {
            checkComputedPropertyName(node.name);
        }
        return checkExpressionForMutableLocation(node.initializer, contextualMapper);
    }
    function checkObjectLiteralMethod(node, contextualMapper) {
        checkGrammarMethod(node);
        if (node.name.kind === 142) {
            checkComputedPropertyName(node.name);
        }
        var uninstantiatedType = checkFunctionExpressionOrObjectLiteralMethod(node, contextualMapper);
        return instantiateTypeWithSingleGenericCallSignature(node, uninstantiatedType, contextualMapper);
    }
    function instantiateTypeWithSingleGenericCallSignature(node, type, contextualMapper) {
        if (isInferentialContext(contextualMapper)) {
            var signature = getSingleCallSignature(type);
            if (signature && signature.typeParameters) {
                var contextualType = getApparentTypeOfContextualType(node);
                if (contextualType) {
                    var contextualSignature = getSingleCallSignature(contextualType);
                    if (contextualSignature && !contextualSignature.typeParameters) {
                        return getOrCreateTypeFromSignature(instantiateSignatureInContextOf(signature, contextualSignature, contextualMapper));
                    }
                }
            }
        }
        return type;
    }
    function getTypeOfExpression(node) {
        if (node.kind === 179 && node.expression.kind !== 96) {
            var funcType = checkNonNullExpression(node.expression);
            var signature = getSingleCallSignature(funcType);
            if (signature && !signature.typeParameters) {
                return getReturnTypeOfSignature(signature);
            }
        }
        return checkExpression(node);
    }
    function checkExpression(node, contextualMapper) {
        var type;
        if (node.kind === 141) {
            type = checkQualifiedName(node);
        }
        else {
            var uninstantiatedType = checkExpressionWorker(node, contextualMapper);
            type = instantiateTypeWithSingleGenericCallSignature(node, uninstantiatedType, contextualMapper);
        }
        if (isConstEnumObjectType(type)) {
            var ok = (node.parent.kind === 177 && node.parent.expression === node) ||
                (node.parent.kind === 178 && node.parent.expression === node) ||
                ((node.kind === 70 || node.kind === 141) && isInRightSideOfImportOrExportAssignment(node));
            if (!ok) {
                error(node, ts.Diagnostics.const_enums_can_only_be_used_in_property_or_index_access_expressions_or_the_right_hand_side_of_an_import_declaration_or_export_assignment);
            }
        }
        return type;
    }
    function checkExpressionWorker(node, contextualMapper) {
        switch (node.kind) {
            case 70:
                return checkIdentifier(node);
            case 98:
                return checkThisExpression(node);
            case 96:
                return checkSuperExpression(node);
            case 94:
                return nullWideningType;
            case 9:
            case 8:
            case 100:
            case 85:
                return checkLiteralExpression(node);
            case 194:
                return checkTemplateExpression(node);
            case 12:
                return stringType;
            case 11:
                return globalRegExpType;
            case 175:
                return checkArrayLiteral(node, contextualMapper);
            case 176:
                return checkObjectLiteral(node, contextualMapper);
            case 177:
                return checkPropertyAccessExpression(node);
            case 178:
                return checkIndexedAccess(node);
            case 179:
            case 180:
                return checkCallExpression(node);
            case 181:
                return checkTaggedTemplateExpression(node);
            case 183:
                return checkExpression(node.expression, contextualMapper);
            case 197:
                return checkClassExpression(node);
            case 184:
            case 185:
                return checkFunctionExpressionOrObjectLiteralMethod(node, contextualMapper);
            case 187:
                return checkTypeOfExpression(node);
            case 182:
            case 200:
                return checkAssertion(node);
            case 201:
                return checkNonNullAssertion(node);
            case 186:
                return checkDeleteExpression(node);
            case 188:
                return checkVoidExpression(node);
            case 189:
                return checkAwaitExpression(node);
            case 190:
                return checkPrefixUnaryExpression(node);
            case 191:
                return checkPostfixUnaryExpression(node);
            case 192:
                return checkBinaryExpression(node, contextualMapper);
            case 193:
                return checkConditionalExpression(node, contextualMapper);
            case 196:
                return checkSpreadExpression(node, contextualMapper);
            case 198:
                return undefinedWideningType;
            case 195:
                return checkYieldExpression(node);
            case 252:
                return checkJsxExpression(node);
            case 246:
                return checkJsxElement(node);
            case 247:
                return checkJsxSelfClosingElement(node);
            case 248:
                ts.Debug.fail("Shouldn't ever directly check a JsxOpeningElement");
        }
        return unknownType;
    }
    function checkTypeParameter(node) {
        if (node.expression) {
            grammarErrorOnFirstToken(node.expression, ts.Diagnostics.Type_expected);
        }
        checkSourceElement(node.constraint);
        getConstraintOfTypeParameter(getDeclaredTypeOfTypeParameter(getSymbolOfNode(node)));
        if (produceDiagnostics) {
            checkTypeNameIsReserved(node.name, ts.Diagnostics.Type_parameter_name_cannot_be_0);
        }
    }
    function checkParameter(node) {
        checkGrammarDecorators(node) || checkGrammarModifiers(node);
        checkVariableLikeDeclaration(node);
        var func = ts.getContainingFunction(node);
        if (ts.getModifierFlags(node) & 92) {
            func = ts.getContainingFunction(node);
            if (!(func.kind === 150 && ts.nodeIsPresent(func.body))) {
                error(node, ts.Diagnostics.A_parameter_property_is_only_allowed_in_a_constructor_implementation);
            }
        }
        if (node.questionToken && ts.isBindingPattern(node.name) && func.body) {
            error(node, ts.Diagnostics.A_binding_pattern_parameter_cannot_be_optional_in_an_implementation_signature);
        }
        if (node.name.text === "this") {
            if (ts.indexOf(func.parameters, node) !== 0) {
                error(node, ts.Diagnostics.A_this_parameter_must_be_the_first_parameter);
            }
            if (func.kind === 150 || func.kind === 154 || func.kind === 159) {
                error(node, ts.Diagnostics.A_constructor_cannot_have_a_this_parameter);
            }
        }
        if (node.dotDotDotToken && !ts.isBindingPattern(node.name) && !isArrayType(getTypeOfSymbol(node.symbol))) {
            error(node, ts.Diagnostics.A_rest_parameter_must_be_of_an_array_type);
        }
    }
    function isSyntacticallyValidGenerator(node) {
        if (!node.asteriskToken || !node.body) {
            return false;
        }
        return node.kind === 149 ||
            node.kind === 225 ||
            node.kind === 184;
    }
    function getTypePredicateParameterIndex(parameterList, parameter) {
        if (parameterList) {
            for (var i = 0; i < parameterList.length; i++) {
                var param = parameterList[i];
                if (param.name.kind === 70 &&
                    param.name.text === parameter.text) {
                    return i;
                }
            }
        }
        return -1;
    }
    function checkTypePredicate(node) {
        var parent = getTypePredicateParent(node);
        if (!parent) {
            error(node, ts.Diagnostics.A_type_predicate_is_only_allowed_in_return_type_position_for_functions_and_methods);
            return;
        }
        var typePredicate = getSignatureFromDeclaration(parent).typePredicate;
        if (!typePredicate) {
            return;
        }
        var parameterName = node.parameterName;
        if (ts.isThisTypePredicate(typePredicate)) {
            getTypeFromThisTypeNode(parameterName);
        }
        else {
            if (typePredicate.parameterIndex >= 0) {
                if (parent.parameters[typePredicate.parameterIndex].dotDotDotToken) {
                    error(parameterName, ts.Diagnostics.A_type_predicate_cannot_reference_a_rest_parameter);
                }
                else {
                    var leadingError = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.A_type_predicate_s_type_must_be_assignable_to_its_parameter_s_type);
                    checkTypeAssignableTo(typePredicate.type, getTypeOfNode(parent.parameters[typePredicate.parameterIndex]), node.type, undefined, leadingError);
                }
            }
            else if (parameterName) {
                var hasReportedError = false;
                for (var _i = 0, _a = parent.parameters; _i < _a.length; _i++) {
                    var name_21 = _a[_i].name;
                    if (ts.isBindingPattern(name_21) &&
                        checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_21, parameterName, typePredicate.parameterName)) {
                        hasReportedError = true;
                        break;
                    }
                }
                if (!hasReportedError) {
                    error(node.parameterName, ts.Diagnostics.Cannot_find_parameter_0, typePredicate.parameterName);
                }
            }
        }
    }
    function getTypePredicateParent(node) {
        switch (node.parent.kind) {
            case 185:
            case 153:
            case 225:
            case 184:
            case 158:
            case 149:
            case 148:
                var parent_10 = node.parent;
                if (node === parent_10.type) {
                    return parent_10;
                }
        }
    }
    function checkIfTypePredicateVariableIsDeclaredInBindingPattern(pattern, predicateVariableNode, predicateVariableName) {
        for (var _i = 0, _a = pattern.elements; _i < _a.length; _i++) {
            var element = _a[_i];
            if (ts.isOmittedExpression(element)) {
                continue;
            }
            var name_22 = element.name;
            if (name_22.kind === 70 &&
                name_22.text === predicateVariableName) {
                error(predicateVariableNode, ts.Diagnostics.A_type_predicate_cannot_reference_element_0_in_a_binding_pattern, predicateVariableName);
                return true;
            }
            else if (name_22.kind === 173 ||
                name_22.kind === 172) {
                if (checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_22, predicateVariableNode, predicateVariableName)) {
                    return true;
                }
            }
        }
    }
    function checkSignatureDeclaration(node) {
        if (node.kind === 155) {
            checkGrammarIndexSignature(node);
        }
        else if (node.kind === 158 || node.kind === 225 || node.kind === 159 ||
            node.kind === 153 || node.kind === 150 ||
            node.kind === 154) {
            checkGrammarFunctionLikeDeclaration(node);
        }
        if (ts.isAsyncFunctionLike(node) && languageVersion < 4) {
            checkExternalEmitHelpers(node, 64);
            if (languageVersion < 2) {
                checkExternalEmitHelpers(node, 128);
            }
        }
        checkTypeParameters(node.typeParameters);
        ts.forEach(node.parameters, checkParameter);
        if (node.type) {
            checkSourceElement(node.type);
        }
        if (produceDiagnostics) {
            checkCollisionWithArgumentsInGeneratedCode(node);
            if (compilerOptions.noImplicitAny && !node.type) {
                switch (node.kind) {
                    case 154:
                        error(node, ts.Diagnostics.Construct_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type);
                        break;
                    case 153:
                        error(node, ts.Diagnostics.Call_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type);
                        break;
                }
            }
            if (node.type) {
                if (languageVersion >= 2 && isSyntacticallyValidGenerator(node)) {
                    var returnType = getTypeFromTypeNode(node.type);
                    if (returnType === voidType) {
                        error(node.type, ts.Diagnostics.A_generator_cannot_have_a_void_type_annotation);
                    }
                    else {
                        var generatorElementType = getElementTypeOfIterableIterator(returnType) || anyType;
                        var iterableIteratorInstantiation = createIterableIteratorType(generatorElementType);
                        checkTypeAssignableTo(iterableIteratorInstantiation, returnType, node.type);
                    }
                }
                else if (ts.isAsyncFunctionLike(node)) {
                    checkAsyncFunctionReturnType(node);
                }
            }
            if (noUnusedIdentifiers && !node.body) {
                checkUnusedTypeParameters(node);
            }
        }
    }
    function checkClassForDuplicateDeclarations(node) {
        var instanceNames = ts.createMap();
        var staticNames = ts.createMap();
        for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
            var member = _a[_i];
            if (member.kind === 150) {
                for (var _b = 0, _c = member.parameters; _b < _c.length; _b++) {
                    var param = _c[_b];
                    if (ts.isParameterPropertyDeclaration(param)) {
                        addName(instanceNames, param.name, param.name.text, 3);
                    }
                }
            }
            else {
                var isStatic = ts.forEach(member.modifiers, function (m) { return m.kind === 114; });
                var names = isStatic ? staticNames : instanceNames;
                var memberName = member.name && ts.getPropertyNameForPropertyNameNode(member.name);
                if (memberName) {
                    switch (member.kind) {
                        case 151:
                            addName(names, member.name, memberName, 1);
                            break;
                        case 152:
                            addName(names, member.name, memberName, 2);
                            break;
                        case 147:
                            addName(names, member.name, memberName, 3);
                            break;
                    }
                }
            }
        }
        function addName(names, location, name, meaning) {
            var prev = names[name];
            if (prev) {
                if (prev & meaning) {
                    error(location, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(location));
                }
                else {
                    names[name] = prev | meaning;
                }
            }
            else {
                names[name] = meaning;
            }
        }
    }
    function checkObjectTypeForDuplicateDeclarations(node) {
        var names = ts.createMap();
        for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
            var member = _a[_i];
            if (member.kind == 146) {
                var memberName = void 0;
                switch (member.name.kind) {
                    case 9:
                    case 8:
                    case 70:
                        memberName = member.name.text;
                        break;
                    default:
                        continue;
                }
                if (names[memberName]) {
                    error(member.symbol.valueDeclaration.name, ts.Diagnostics.Duplicate_identifier_0, memberName);
                    error(member.name, ts.Diagnostics.Duplicate_identifier_0, memberName);
                }
                else {
                    names[memberName] = true;
                }
            }
        }
    }
    function checkTypeForDuplicateIndexSignatures(node) {
        if (node.kind === 227) {
            var nodeSymbol = getSymbolOfNode(node);
            if (nodeSymbol.declarations.length > 0 && nodeSymbol.declarations[0] !== node) {
                return;
            }
        }
        var indexSymbol = getIndexSymbol(getSymbolOfNode(node));
        if (indexSymbol) {
            var seenNumericIndexer = false;
            var seenStringIndexer = false;
            for (var _i = 0, _a = indexSymbol.declarations; _i < _a.length; _i++) {
                var decl = _a[_i];
                var declaration = decl;
                if (declaration.parameters.length === 1 && declaration.parameters[0].type) {
                    switch (declaration.parameters[0].type.kind) {
                        case 134:
                            if (!seenStringIndexer) {
                                seenStringIndexer = true;
                            }
                            else {
                                error(declaration, ts.Diagnostics.Duplicate_string_index_signature);
                            }
                            break;
                        case 132:
                            if (!seenNumericIndexer) {
                                seenNumericIndexer = true;
                            }
                            else {
                                error(declaration, ts.Diagnostics.Duplicate_number_index_signature);
                            }
                            break;
                    }
                }
            }
        }
    }
    function checkPropertyDeclaration(node) {
        checkGrammarDecorators(node) || checkGrammarModifiers(node) || checkGrammarProperty(node) || checkGrammarComputedPropertyName(node.name);
        checkVariableLikeDeclaration(node);
    }
    function checkMethodDeclaration(node) {
        checkGrammarMethod(node) || checkGrammarComputedPropertyName(node.name);
        checkFunctionOrMethodDeclaration(node);
        if (ts.getModifierFlags(node) & 128 && node.body) {
            error(node, ts.Diagnostics.Method_0_cannot_have_an_implementation_because_it_is_marked_abstract, ts.declarationNameToString(node.name));
        }
    }
    function checkConstructorDeclaration(node) {
        checkSignatureDeclaration(node);
        checkGrammarConstructorTypeParameters(node) || checkGrammarConstructorTypeAnnotation(node);
        checkSourceElement(node.body);
        registerForUnusedIdentifiersCheck(node);
        var symbol = getSymbolOfNode(node);
        var firstDeclaration = ts.getDeclarationOfKind(symbol, node.kind);
        if (node === firstDeclaration) {
            checkFunctionOrConstructorSymbol(symbol);
        }
        if (ts.nodeIsMissing(node.body)) {
            return;
        }
        if (!produceDiagnostics) {
            return;
        }
        function containsSuperCallAsComputedPropertyName(n) {
            return n.name && containsSuperCall(n.name);
        }
        function containsSuperCall(n) {
            if (ts.isSuperCall(n)) {
                return true;
            }
            else if (ts.isFunctionLike(n)) {
                return false;
            }
            else if (ts.isClassLike(n)) {
                return ts.forEach(n.members, containsSuperCallAsComputedPropertyName);
            }
            return ts.forEachChild(n, containsSuperCall);
        }
        function markThisReferencesAsErrors(n) {
            if (n.kind === 98) {
                error(n, ts.Diagnostics.this_cannot_be_referenced_in_current_location);
            }
            else if (n.kind !== 184 && n.kind !== 225) {
                ts.forEachChild(n, markThisReferencesAsErrors);
            }
        }
        function isInstancePropertyWithInitializer(n) {
            return n.kind === 147 &&
                !(ts.getModifierFlags(n) & 32) &&
                !!n.initializer;
        }
        var containingClassDecl = node.parent;
        if (ts.getClassExtendsHeritageClauseElement(containingClassDecl)) {
            captureLexicalThis(node.parent, containingClassDecl);
            var classExtendsNull = classDeclarationExtendsNull(containingClassDecl);
            var superCall = getSuperCallInConstructor(node);
            if (superCall) {
                if (classExtendsNull) {
                    error(superCall, ts.Diagnostics.A_constructor_cannot_contain_a_super_call_when_its_class_extends_null);
                }
                var superCallShouldBeFirst = ts.forEach(node.parent.members, isInstancePropertyWithInitializer) ||
                    ts.forEach(node.parameters, function (p) { return ts.getModifierFlags(p) & 92; });
                if (superCallShouldBeFirst) {
                    var statements = node.body.statements;
                    var superCallStatement = void 0;
                    for (var _i = 0, statements_3 = statements; _i < statements_3.length; _i++) {
                        var statement = statements_3[_i];
                        if (statement.kind === 207 && ts.isSuperCall(statement.expression)) {
                            superCallStatement = statement;
                            break;
                        }
                        if (!ts.isPrologueDirective(statement)) {
                            break;
                        }
                    }
                    if (!superCallStatement) {
                        error(node, ts.Diagnostics.A_super_call_must_be_the_first_statement_in_the_constructor_when_a_class_contains_initialized_properties_or_has_parameter_properties);
                    }
                }
            }
            else if (!classExtendsNull) {
                error(node, ts.Diagnostics.Constructors_for_derived_classes_must_contain_a_super_call);
            }
        }
    }
    function checkAccessorDeclaration(node) {
        if (produceDiagnostics) {
            checkGrammarFunctionLikeDeclaration(node) || checkGrammarAccessor(node) || checkGrammarComputedPropertyName(node.name);
            checkDecorators(node);
            checkSignatureDeclaration(node);
            if (node.kind === 151) {
                if (!ts.isInAmbientContext(node) && ts.nodeIsPresent(node.body) && (node.flags & 128)) {
                    if (!(node.flags & 256)) {
                        error(node.name, ts.Diagnostics.A_get_accessor_must_return_a_value);
                    }
                }
            }
            if (node.name.kind === 142) {
                checkComputedPropertyName(node.name);
            }
            if (!ts.hasDynamicName(node)) {
                var otherKind = node.kind === 151 ? 152 : 151;
                var otherAccessor = ts.getDeclarationOfKind(node.symbol, otherKind);
                if (otherAccessor) {
                    if ((ts.getModifierFlags(node) & 28) !== (ts.getModifierFlags(otherAccessor) & 28)) {
                        error(node.name, ts.Diagnostics.Getter_and_setter_accessors_do_not_agree_in_visibility);
                    }
                    if (ts.hasModifier(node, 128) !== ts.hasModifier(otherAccessor, 128)) {
                        error(node.name, ts.Diagnostics.Accessors_must_both_be_abstract_or_non_abstract);
                    }
                    checkAccessorDeclarationTypesIdentical(node, otherAccessor, getAnnotatedAccessorType, ts.Diagnostics.get_and_set_accessor_must_have_the_same_type);
                    checkAccessorDeclarationTypesIdentical(node, otherAccessor, getThisTypeOfDeclaration, ts.Diagnostics.get_and_set_accessor_must_have_the_same_this_type);
                }
            }
            var returnType = getTypeOfAccessors(getSymbolOfNode(node));
            if (node.kind === 151) {
                checkAllCodePathsInNonVoidFunctionReturnOrThrow(node, returnType);
            }
        }
        if (node.parent.kind !== 176) {
            checkSourceElement(node.body);
            registerForUnusedIdentifiersCheck(node);
        }
        else {
            checkNodeDeferred(node);
        }
    }
    function checkAccessorDeclarationTypesIdentical(first, second, getAnnotatedType, message) {
        var firstType = getAnnotatedType(first);
        var secondType = getAnnotatedType(second);
        if (firstType && secondType && !isTypeIdenticalTo(firstType, secondType)) {
            error(first, message);
        }
    }
    function checkAccessorDeferred(node) {
        checkSourceElement(node.body);
        registerForUnusedIdentifiersCheck(node);
    }
    function checkMissingDeclaration(node) {
        checkDecorators(node);
    }
    function checkTypeArgumentConstraints(typeParameters, typeArgumentNodes) {
        var typeArguments;
        var mapper;
        var result = true;
        for (var i = 0; i < typeParameters.length; i++) {
            var constraint = getConstraintOfTypeParameter(typeParameters[i]);
            if (constraint) {
                if (!typeArguments) {
                    typeArguments = ts.map(typeArgumentNodes, getTypeFromTypeNode);
                    mapper = createTypeMapper(typeParameters, typeArguments);
                }
                var typeArgument = typeArguments[i];
                result = result && checkTypeAssignableTo(typeArgument, getTypeWithThisArgument(instantiateType(constraint, mapper), typeArgument), typeArgumentNodes[i], ts.Diagnostics.Type_0_does_not_satisfy_the_constraint_1);
            }
        }
        return result;
    }
    function checkTypeReferenceNode(node) {
        checkGrammarTypeArguments(node, node.typeArguments);
        var type = getTypeFromTypeReference(node);
        if (type !== unknownType) {
            if (node.typeArguments) {
                ts.forEach(node.typeArguments, checkSourceElement);
                if (produceDiagnostics) {
                    var symbol = getNodeLinks(node).resolvedSymbol;
                    var typeParameters = symbol.flags & 524288 ? getSymbolLinks(symbol).typeParameters : type.target.localTypeParameters;
                    checkTypeArgumentConstraints(typeParameters, node.typeArguments);
                }
            }
            if (type.flags & 16 && !type.memberTypes && getNodeLinks(node).resolvedSymbol.flags & 8) {
                error(node, ts.Diagnostics.Enum_type_0_has_members_with_initializers_that_are_not_literals, typeToString(type));
            }
        }
    }
    function checkTypeQuery(node) {
        getTypeFromTypeQueryNode(node);
    }
    function checkTypeLiteral(node) {
        ts.forEach(node.members, checkSourceElement);
        if (produceDiagnostics) {
            var type = getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node);
            checkIndexConstraints(type);
            checkTypeForDuplicateIndexSignatures(node);
            checkObjectTypeForDuplicateDeclarations(node);
        }
    }
    function checkArrayType(node) {
        checkSourceElement(node.elementType);
    }
    function checkTupleType(node) {
        var hasErrorFromDisallowedTrailingComma = checkGrammarForDisallowedTrailingComma(node.elementTypes);
        if (!hasErrorFromDisallowedTrailingComma && node.elementTypes.length === 0) {
            grammarErrorOnNode(node, ts.Diagnostics.A_tuple_type_element_list_cannot_be_empty);
        }
        ts.forEach(node.elementTypes, checkSourceElement);
    }
    function checkUnionOrIntersectionType(node) {
        ts.forEach(node.types, checkSourceElement);
    }
    function checkIndexedAccessType(node) {
        getTypeFromIndexedAccessTypeNode(node);
    }
    function checkMappedType(node) {
        checkSourceElement(node.typeParameter);
        checkSourceElement(node.type);
        var type = getTypeFromMappedTypeNode(node);
        var constraintType = getConstraintTypeFromMappedType(type);
        var keyType = constraintType.flags & 540672 ? getApparentTypeOfTypeVariable(constraintType) : constraintType;
        checkTypeAssignableTo(keyType, stringType, node.typeParameter.constraint);
    }
    function isPrivateWithinAmbient(node) {
        return (ts.getModifierFlags(node) & 8) && ts.isInAmbientContext(node);
    }
    function getEffectiveDeclarationFlags(n, flagsToCheck) {
        var flags = ts.getCombinedModifierFlags(n);
        if (n.parent.kind !== 227 &&
            n.parent.kind !== 226 &&
            n.parent.kind !== 197 &&
            ts.isInAmbientContext(n)) {
            if (!(flags & 2)) {
                flags |= 1;
            }
            flags |= 2;
        }
        return flags & flagsToCheck;
    }
    function checkFunctionOrConstructorSymbol(symbol) {
        if (!produceDiagnostics) {
            return;
        }
        function getCanonicalOverload(overloads, implementation) {
            var implementationSharesContainerWithFirstOverload = implementation !== undefined && implementation.parent === overloads[0].parent;
            return implementationSharesContainerWithFirstOverload ? implementation : overloads[0];
        }
        function checkFlagAgreementBetweenOverloads(overloads, implementation, flagsToCheck, someOverloadFlags, allOverloadFlags) {
            var someButNotAllOverloadFlags = someOverloadFlags ^ allOverloadFlags;
            if (someButNotAllOverloadFlags !== 0) {
                var canonicalFlags_1 = getEffectiveDeclarationFlags(getCanonicalOverload(overloads, implementation), flagsToCheck);
                ts.forEach(overloads, function (o) {
                    var deviation = getEffectiveDeclarationFlags(o, flagsToCheck) ^ canonicalFlags_1;
                    if (deviation & 1) {
                        error(o.name, ts.Diagnostics.Overload_signatures_must_all_be_exported_or_non_exported);
                    }
                    else if (deviation & 2) {
                        error(o.name, ts.Diagnostics.Overload_signatures_must_all_be_ambient_or_non_ambient);
                    }
                    else if (deviation & (8 | 16)) {
                        error(o.name || o, ts.Diagnostics.Overload_signatures_must_all_be_public_private_or_protected);
                    }
                    else if (deviation & 128) {
                        error(o.name, ts.Diagnostics.Overload_signatures_must_all_be_abstract_or_non_abstract);
                    }
                });
            }
        }
        function checkQuestionTokenAgreementBetweenOverloads(overloads, implementation, someHaveQuestionToken, allHaveQuestionToken) {
            if (someHaveQuestionToken !== allHaveQuestionToken) {
                var canonicalHasQuestionToken_1 = ts.hasQuestionToken(getCanonicalOverload(overloads, implementation));
                ts.forEach(overloads, function (o) {
                    var deviation = ts.hasQuestionToken(o) !== canonicalHasQuestionToken_1;
                    if (deviation) {
                        error(o.name, ts.Diagnostics.Overload_signatures_must_all_be_optional_or_required);
                    }
                });
            }
        }
        var flagsToCheck = 1 | 2 | 8 | 16 | 128;
        var someNodeFlags = 0;
        var allNodeFlags = flagsToCheck;
        var someHaveQuestionToken = false;
        var allHaveQuestionToken = true;
        var hasOverloads = false;
        var bodyDeclaration;
        var lastSeenNonAmbientDeclaration;
        var previousDeclaration;
        var declarations = symbol.declarations;
        var isConstructor = (symbol.flags & 16384) !== 0;
        function reportImplementationExpectedError(node) {
            if (node.name && ts.nodeIsMissing(node.name)) {
                return;
            }
            var seen = false;
            var subsequentNode = ts.forEachChild(node.parent, function (c) {
                if (seen) {
                    return c;
                }
                else {
                    seen = c === node;
                }
            });
            if (subsequentNode && subsequentNode.pos === node.end) {
                if (subsequentNode.kind === node.kind) {
                    var errorNode_1 = subsequentNode.name || subsequentNode;
                    if (node.name && subsequentNode.name && node.name.text === subsequentNode.name.text) {
                        var reportError = (node.kind === 149 || node.kind === 148) &&
                            (ts.getModifierFlags(node) & 32) !== (ts.getModifierFlags(subsequentNode) & 32);
                        if (reportError) {
                            var diagnostic = ts.getModifierFlags(node) & 32 ? ts.Diagnostics.Function_overload_must_be_static : ts.Diagnostics.Function_overload_must_not_be_static;
                            error(errorNode_1, diagnostic);
                        }
                        return;
                    }
                    else if (ts.nodeIsPresent(subsequentNode.body)) {
                        error(errorNode_1, ts.Diagnostics.Function_implementation_name_must_be_0, ts.declarationNameToString(node.name));
                        return;
                    }
                }
            }
            var errorNode = node.name || node;
            if (isConstructor) {
                error(errorNode, ts.Diagnostics.Constructor_implementation_is_missing);
            }
            else {
                if (ts.getModifierFlags(node) & 128) {
                    error(errorNode, ts.Diagnostics.All_declarations_of_an_abstract_method_must_be_consecutive);
                }
                else {
                    error(errorNode, ts.Diagnostics.Function_implementation_is_missing_or_not_immediately_following_the_declaration);
                }
            }
        }
        var duplicateFunctionDeclaration = false;
        var multipleConstructorImplementation = false;
        for (var _i = 0, declarations_4 = declarations; _i < declarations_4.length; _i++) {
            var current = declarations_4[_i];
            var node = current;
            var inAmbientContext = ts.isInAmbientContext(node);
            var inAmbientContextOrInterface = node.parent.kind === 227 || node.parent.kind === 161 || inAmbientContext;
            if (inAmbientContextOrInterface) {
                previousDeclaration = undefined;
            }
            if (node.kind === 225 || node.kind === 149 || node.kind === 148 || node.kind === 150) {
                var currentNodeFlags = getEffectiveDeclarationFlags(node, flagsToCheck);
                someNodeFlags |= currentNodeFlags;
                allNodeFlags &= currentNodeFlags;
                someHaveQuestionToken = someHaveQuestionToken || ts.hasQuestionToken(node);
                allHaveQuestionToken = allHaveQuestionToken && ts.hasQuestionToken(node);
                if (ts.nodeIsPresent(node.body) && bodyDeclaration) {
                    if (isConstructor) {
                        multipleConstructorImplementation = true;
                    }
                    else {
                        duplicateFunctionDeclaration = true;
                    }
                }
                else if (previousDeclaration && previousDeclaration.parent === node.parent && previousDeclaration.end !== node.pos) {
                    reportImplementationExpectedError(previousDeclaration);
                }
                if (ts.nodeIsPresent(node.body)) {
                    if (!bodyDeclaration) {
                        bodyDeclaration = node;
                    }
                }
                else {
                    hasOverloads = true;
                }
                previousDeclaration = node;
                if (!inAmbientContextOrInterface) {
                    lastSeenNonAmbientDeclaration = node;
                }
            }
        }
        if (multipleConstructorImplementation) {
            ts.forEach(declarations, function (declaration) {
                error(declaration, ts.Diagnostics.Multiple_constructor_implementations_are_not_allowed);
            });
        }
        if (duplicateFunctionDeclaration) {
            ts.forEach(declarations, function (declaration) {
                error(declaration.name, ts.Diagnostics.Duplicate_function_implementation);
            });
        }
        if (lastSeenNonAmbientDeclaration && !lastSeenNonAmbientDeclaration.body &&
            !(ts.getModifierFlags(lastSeenNonAmbientDeclaration) & 128) && !lastSeenNonAmbientDeclaration.questionToken) {
            reportImplementationExpectedError(lastSeenNonAmbientDeclaration);
        }
        if (hasOverloads) {
            checkFlagAgreementBetweenOverloads(declarations, bodyDeclaration, flagsToCheck, someNodeFlags, allNodeFlags);
            checkQuestionTokenAgreementBetweenOverloads(declarations, bodyDeclaration, someHaveQuestionToken, allHaveQuestionToken);
            if (bodyDeclaration) {
                var signatures = getSignaturesOfSymbol(symbol);
                var bodySignature = getSignatureFromDeclaration(bodyDeclaration);
                for (var _a = 0, signatures_3 = signatures; _a < signatures_3.length; _a++) {
                    var signature = signatures_3[_a];
                    if (!isImplementationCompatibleWithOverload(bodySignature, signature)) {
                        error(signature.declaration, ts.Diagnostics.Overload_signature_is_not_compatible_with_function_implementation);
                        break;
                    }
                }
            }
        }
    }
    function checkExportsOnMergedDeclarations(node) {
        if (!produceDiagnostics) {
            return;
        }
        var symbol = node.localSymbol;
        if (!symbol) {
            symbol = getSymbolOfNode(node);
            if (!(symbol.flags & 7340032)) {
                return;
            }
        }
        if (ts.getDeclarationOfKind(symbol, node.kind) !== node) {
            return;
        }
        var exportedDeclarationSpaces = 0;
        var nonExportedDeclarationSpaces = 0;
        var defaultExportedDeclarationSpaces = 0;
        for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
            var d = _a[_i];
            var declarationSpaces = getDeclarationSpaces(d);
            var effectiveDeclarationFlags = getEffectiveDeclarationFlags(d, 1 | 512);
            if (effectiveDeclarationFlags & 1) {
                if (effectiveDeclarationFlags & 512) {
                    defaultExportedDeclarationSpaces |= declarationSpaces;
                }
                else {
                    exportedDeclarationSpaces |= declarationSpaces;
                }
            }
            else {
                nonExportedDeclarationSpaces |= declarationSpaces;
            }
        }
        var nonDefaultExportedDeclarationSpaces = exportedDeclarationSpaces | nonExportedDeclarationSpaces;
        var commonDeclarationSpacesForExportsAndLocals = exportedDeclarationSpaces & nonExportedDeclarationSpaces;
        var commonDeclarationSpacesForDefaultAndNonDefault = defaultExportedDeclarationSpaces & nonDefaultExportedDeclarationSpaces;
        if (commonDeclarationSpacesForExportsAndLocals || commonDeclarationSpacesForDefaultAndNonDefault) {
            for (var _b = 0, _c = symbol.declarations; _b < _c.length; _b++) {
                var d = _c[_b];
                var declarationSpaces = getDeclarationSpaces(d);
                if (declarationSpaces & commonDeclarationSpacesForDefaultAndNonDefault) {
                    error(d.name, ts.Diagnostics.Merged_declaration_0_cannot_include_a_default_export_declaration_Consider_adding_a_separate_export_default_0_declaration_instead, ts.declarationNameToString(d.name));
                }
                else if (declarationSpaces & commonDeclarationSpacesForExportsAndLocals) {
                    error(d.name, ts.Diagnostics.Individual_declarations_in_merged_declaration_0_must_be_all_exported_or_all_local, ts.declarationNameToString(d.name));
                }
            }
        }
        function getDeclarationSpaces(d) {
            switch (d.kind) {
                case 227:
                    return 2097152;
                case 230:
                    return ts.isAmbientModule(d) || ts.getModuleInstanceState(d) !== 0
                        ? 4194304 | 1048576
                        : 4194304;
                case 226:
                case 229:
                    return 2097152 | 1048576;
                case 234:
                    var result_3 = 0;
                    var target = resolveAlias(getSymbolOfNode(d));
                    ts.forEach(target.declarations, function (d) { result_3 |= getDeclarationSpaces(d); });
                    return result_3;
                default:
                    return 1048576;
            }
        }
    }
    function checkNonThenableType(type, location, message) {
        type = getWidenedType(type);
        if (!isTypeAny(type) && !isTypeNever(type) && isTypeAssignableTo(type, getGlobalThenableType())) {
            if (location) {
                if (!message) {
                    message = ts.Diagnostics.Operand_for_await_does_not_have_a_valid_callable_then_member;
                }
                error(location, message);
            }
            return unknownType;
        }
        return type;
    }
    function getPromisedType(promise) {
        if (isTypeAny(promise)) {
            return undefined;
        }
        if (getObjectFlags(promise) & 4) {
            if (promise.target === tryGetGlobalPromiseType()
                || promise.target === getGlobalPromiseLikeType()) {
                return promise.typeArguments[0];
            }
        }
        var globalPromiseLikeType = getInstantiatedGlobalPromiseLikeType();
        if (globalPromiseLikeType === emptyObjectType || !isTypeAssignableTo(promise, globalPromiseLikeType)) {
            return undefined;
        }
        var thenFunction = getTypeOfPropertyOfType(promise, "then");
        if (!thenFunction || isTypeAny(thenFunction)) {
            return undefined;
        }
        var thenSignatures = getSignaturesOfType(thenFunction, 0);
        if (thenSignatures.length === 0) {
            return undefined;
        }
        var onfulfilledParameterType = getTypeWithFacts(getUnionType(ts.map(thenSignatures, getTypeOfFirstParameterOfSignature)), 524288);
        if (isTypeAny(onfulfilledParameterType)) {
            return undefined;
        }
        var onfulfilledParameterSignatures = getSignaturesOfType(onfulfilledParameterType, 0);
        if (onfulfilledParameterSignatures.length === 0) {
            return undefined;
        }
        return getUnionType(ts.map(onfulfilledParameterSignatures, getTypeOfFirstParameterOfSignature), true);
    }
    function getTypeOfFirstParameterOfSignature(signature) {
        return signature.parameters.length > 0 ? getTypeAtPosition(signature, 0) : neverType;
    }
    function getAwaitedType(type) {
        return checkAwaitedType(type, undefined, undefined);
    }
    function checkAwaitedType(type, location, message) {
        return checkAwaitedTypeWorker(type);
        function checkAwaitedTypeWorker(type) {
            if (type.flags & 65536) {
                var types = [];
                for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
                    var constituentType = _a[_i];
                    types.push(checkAwaitedTypeWorker(constituentType));
                }
                return getUnionType(types, true);
            }
            else {
                var promisedType = getPromisedType(type);
                if (promisedType === undefined) {
                    return checkNonThenableType(type, location, message);
                }
                else {
                    if (type.id === promisedType.id || ts.indexOf(awaitedTypeStack, promisedType.id) >= 0) {
                        if (location) {
                            error(location, ts.Diagnostics._0_is_referenced_directly_or_indirectly_in_the_fulfillment_callback_of_its_own_then_method, symbolToString(type.symbol));
                        }
                        return unknownType;
                    }
                    awaitedTypeStack.push(type.id);
                    var awaitedType = checkAwaitedTypeWorker(promisedType);
                    awaitedTypeStack.pop();
                    return awaitedType;
                }
            }
        }
    }
    function checkAsyncFunctionReturnType(node) {
        var returnType = getTypeFromTypeNode(node.type);
        if (languageVersion >= 2) {
            if (returnType === unknownType) {
                return unknownType;
            }
            var globalPromiseType = getGlobalPromiseType();
            if (globalPromiseType !== emptyGenericType && globalPromiseType !== getTargetType(returnType)) {
                error(node.type, ts.Diagnostics.The_return_type_of_an_async_function_or_method_must_be_the_global_Promise_T_type);
                return unknownType;
            }
        }
        else {
            markTypeNodeAsReferenced(node.type);
            if (returnType === unknownType) {
                return unknownType;
            }
            var promiseConstructorName = ts.getEntityNameFromTypeNode(node.type);
            if (promiseConstructorName === undefined) {
                error(node.type, ts.Diagnostics.Type_0_is_not_a_valid_async_function_return_type_in_ES5_SlashES3_because_it_does_not_refer_to_a_Promise_compatible_constructor_value, typeToString(returnType));
                return unknownType;
            }
            var promiseConstructorSymbol = resolveEntityName(promiseConstructorName, 107455, true);
            var promiseConstructorType = promiseConstructorSymbol ? getTypeOfSymbol(promiseConstructorSymbol) : unknownType;
            if (promiseConstructorType === unknownType) {
                error(node.type, ts.Diagnostics.Type_0_is_not_a_valid_async_function_return_type_in_ES5_SlashES3_because_it_does_not_refer_to_a_Promise_compatible_constructor_value, ts.entityNameToString(promiseConstructorName));
                return unknownType;
            }
            var globalPromiseConstructorLikeType = getGlobalPromiseConstructorLikeType();
            if (globalPromiseConstructorLikeType === emptyObjectType) {
                error(node.type, ts.Diagnostics.Type_0_is_not_a_valid_async_function_return_type_in_ES5_SlashES3_because_it_does_not_refer_to_a_Promise_compatible_constructor_value, ts.entityNameToString(promiseConstructorName));
                return unknownType;
            }
            if (!checkTypeAssignableTo(promiseConstructorType, globalPromiseConstructorLikeType, node.type, ts.Diagnostics.Type_0_is_not_a_valid_async_function_return_type_in_ES5_SlashES3_because_it_does_not_refer_to_a_Promise_compatible_constructor_value)) {
                return unknownType;
            }
            var rootName = promiseConstructorName && getFirstIdentifier(promiseConstructorName);
            var collidingSymbol = getSymbol(node.locals, rootName.text, 107455);
            if (collidingSymbol) {
                error(collidingSymbol.valueDeclaration, ts.Diagnostics.Duplicate_identifier_0_Compiler_uses_declaration_1_to_support_async_functions, rootName.text, ts.entityNameToString(promiseConstructorName));
                return unknownType;
            }
        }
        return checkAwaitedType(returnType, node, ts.Diagnostics.An_async_function_or_method_must_have_a_valid_awaitable_return_type);
    }
    function checkDecorator(node) {
        var signature = getResolvedSignature(node);
        var returnType = getReturnTypeOfSignature(signature);
        if (returnType.flags & 1) {
            return;
        }
        var expectedReturnType;
        var headMessage = getDiagnosticHeadMessageForDecoratorResolution(node);
        var errorInfo;
        switch (node.parent.kind) {
            case 226:
                var classSymbol = getSymbolOfNode(node.parent);
                var classConstructorType = getTypeOfSymbol(classSymbol);
                expectedReturnType = getUnionType([classConstructorType, voidType]);
                break;
            case 144:
                expectedReturnType = voidType;
                errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.The_return_type_of_a_parameter_decorator_function_must_be_either_void_or_any);
                break;
            case 147:
                expectedReturnType = voidType;
                errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.The_return_type_of_a_property_decorator_function_must_be_either_void_or_any);
                break;
            case 149:
            case 151:
            case 152:
                var methodType = getTypeOfNode(node.parent);
                var descriptorType = createTypedPropertyDescriptorType(methodType);
                expectedReturnType = getUnionType([descriptorType, voidType]);
                break;
        }
        checkTypeAssignableTo(returnType, expectedReturnType, node, headMessage, errorInfo);
    }
    function markTypeNodeAsReferenced(node) {
        var typeName = node && ts.getEntityNameFromTypeNode(node);
        var rootName = typeName && getFirstIdentifier(typeName);
        var rootSymbol = rootName && resolveName(rootName, rootName.text, (typeName.kind === 70 ? 793064 : 1920) | 8388608, undefined, undefined);
        if (rootSymbol
            && rootSymbol.flags & 8388608
            && symbolIsValue(rootSymbol)
            && !isConstEnumOrConstEnumOnlyModule(resolveAlias(rootSymbol))) {
            markAliasSymbolAsReferenced(rootSymbol);
        }
    }
    function getParameterTypeNodeForDecoratorCheck(node) {
        return node.dotDotDotToken ? ts.getRestParameterElementType(node.type) : node.type;
    }
    function checkDecorators(node) {
        if (!node.decorators) {
            return;
        }
        if (!ts.nodeCanBeDecorated(node)) {
            return;
        }
        if (!compilerOptions.experimentalDecorators) {
            error(node, ts.Diagnostics.Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_to_remove_this_warning);
        }
        var firstDecorator = node.decorators[0];
        checkExternalEmitHelpers(firstDecorator, 8);
        if (node.kind === 144) {
            checkExternalEmitHelpers(firstDecorator, 32);
        }
        if (compilerOptions.emitDecoratorMetadata) {
            checkExternalEmitHelpers(firstDecorator, 16);
            switch (node.kind) {
                case 226:
                    var constructor = ts.getFirstConstructorWithBody(node);
                    if (constructor) {
                        for (var _i = 0, _a = constructor.parameters; _i < _a.length; _i++) {
                            var parameter = _a[_i];
                            markTypeNodeAsReferenced(getParameterTypeNodeForDecoratorCheck(parameter));
                        }
                    }
                    break;
                case 149:
                case 151:
                case 152:
                    for (var _b = 0, _c = node.parameters; _b < _c.length; _b++) {
                        var parameter = _c[_b];
                        markTypeNodeAsReferenced(getParameterTypeNodeForDecoratorCheck(parameter));
                    }
                    markTypeNodeAsReferenced(node.type);
                    break;
                case 147:
                    markTypeNodeAsReferenced(getParameterTypeNodeForDecoratorCheck(node));
                    break;
                case 144:
                    markTypeNodeAsReferenced(node.type);
                    break;
            }
        }
        ts.forEach(node.decorators, checkDecorator);
    }
    function checkFunctionDeclaration(node) {
        if (produceDiagnostics) {
            checkFunctionOrMethodDeclaration(node) || checkGrammarForGenerator(node);
            checkCollisionWithCapturedSuperVariable(node, node.name);
            checkCollisionWithCapturedThisVariable(node, node.name);
            checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
            checkCollisionWithGlobalPromiseInGeneratedCode(node, node.name);
        }
    }
    function checkFunctionOrMethodDeclaration(node) {
        checkDecorators(node);
        checkSignatureDeclaration(node);
        var isAsync = ts.isAsyncFunctionLike(node);
        if (node.name && node.name.kind === 142) {
            checkComputedPropertyName(node.name);
        }
        if (!ts.hasDynamicName(node)) {
            var symbol = getSymbolOfNode(node);
            var localSymbol = node.localSymbol || symbol;
            var firstDeclaration = ts.forEach(localSymbol.declarations, function (declaration) { return declaration.kind === node.kind && !ts.isSourceFileJavaScript(ts.getSourceFileOfNode(declaration)) ?
                declaration : undefined; });
            if (node === firstDeclaration) {
                checkFunctionOrConstructorSymbol(localSymbol);
            }
            if (symbol.parent) {
                if (ts.getDeclarationOfKind(symbol, node.kind) === node) {
                    checkFunctionOrConstructorSymbol(symbol);
                }
            }
        }
        checkSourceElement(node.body);
        if (!node.asteriskToken) {
            var returnOrPromisedType = node.type && (isAsync ? checkAsyncFunctionReturnType(node) : getTypeFromTypeNode(node.type));
            checkAllCodePathsInNonVoidFunctionReturnOrThrow(node, returnOrPromisedType);
        }
        if (produceDiagnostics && !node.type) {
            if (compilerOptions.noImplicitAny && ts.nodeIsMissing(node.body) && !isPrivateWithinAmbient(node)) {
                reportImplicitAnyError(node, anyType);
            }
            if (node.asteriskToken && ts.nodeIsPresent(node.body)) {
                getReturnTypeOfSignature(getSignatureFromDeclaration(node));
            }
        }
        registerForUnusedIdentifiersCheck(node);
    }
    function registerForUnusedIdentifiersCheck(node) {
        if (deferredUnusedIdentifierNodes) {
            deferredUnusedIdentifierNodes.push(node);
        }
    }
    function checkUnusedIdentifiers() {
        if (deferredUnusedIdentifierNodes) {
            for (var _i = 0, deferredUnusedIdentifierNodes_1 = deferredUnusedIdentifierNodes; _i < deferredUnusedIdentifierNodes_1.length; _i++) {
                var node = deferredUnusedIdentifierNodes_1[_i];
                switch (node.kind) {
                    case 261:
                    case 230:
                        checkUnusedModuleMembers(node);
                        break;
                    case 226:
                    case 197:
                        checkUnusedClassMembers(node);
                        checkUnusedTypeParameters(node);
                        break;
                    case 227:
                        checkUnusedTypeParameters(node);
                        break;
                    case 204:
                    case 232:
                    case 211:
                    case 212:
                    case 213:
                        checkUnusedLocalsAndParameters(node);
                        break;
                    case 150:
                    case 184:
                    case 225:
                    case 185:
                    case 149:
                    case 151:
                    case 152:
                        if (node.body) {
                            checkUnusedLocalsAndParameters(node);
                        }
                        checkUnusedTypeParameters(node);
                        break;
                    case 148:
                    case 153:
                    case 154:
                    case 155:
                    case 158:
                    case 159:
                        checkUnusedTypeParameters(node);
                        break;
                }
                ;
            }
        }
    }
    function checkUnusedLocalsAndParameters(node) {
        if (node.parent.kind !== 227 && noUnusedIdentifiers && !ts.isInAmbientContext(node)) {
            var _loop_2 = function (key) {
                var local = node.locals[key];
                if (!local.isReferenced) {
                    if (local.valueDeclaration && ts.getRootDeclaration(local.valueDeclaration).kind === 144) {
                        var parameter = ts.getRootDeclaration(local.valueDeclaration);
                        if (compilerOptions.noUnusedParameters &&
                            !ts.isParameterPropertyDeclaration(parameter) &&
                            !ts.parameterIsThisKeyword(parameter) &&
                            !parameterNameStartsWithUnderscore(local.valueDeclaration.name)) {
                            error(local.valueDeclaration.name, ts.Diagnostics._0_is_declared_but_never_used, local.name);
                        }
                    }
                    else if (compilerOptions.noUnusedLocals) {
                        ts.forEach(local.declarations, function (d) { return errorUnusedLocal(d.name || d, local.name); });
                    }
                }
            };
            for (var key in node.locals) {
                _loop_2(key);
            }
        }
    }
    function isRemovedPropertyFromObjectSpread(node) {
        if (ts.isBindingElement(node) && ts.isObjectBindingPattern(node.parent)) {
            var lastElement = ts.lastOrUndefined(node.parent.elements);
            return lastElement !== node && !!lastElement.dotDotDotToken;
        }
        return false;
    }
    function errorUnusedLocal(node, name) {
        if (isIdentifierThatStartsWithUnderScore(node)) {
            var declaration = ts.getRootDeclaration(node.parent);
            if (declaration.kind === 223 &&
                (declaration.parent.parent.kind === 212 ||
                    declaration.parent.parent.kind === 213)) {
                return;
            }
        }
        if (!isRemovedPropertyFromObjectSpread(node.kind === 70 ? node.parent : node)) {
            error(node, ts.Diagnostics._0_is_declared_but_never_used, name);
        }
    }
    function parameterNameStartsWithUnderscore(parameterName) {
        return parameterName && isIdentifierThatStartsWithUnderScore(parameterName);
    }
    function isIdentifierThatStartsWithUnderScore(node) {
        return node.kind === 70 && node.text.charCodeAt(0) === 95;
    }
    function checkUnusedClassMembers(node) {
        if (compilerOptions.noUnusedLocals && !ts.isInAmbientContext(node)) {
            if (node.members) {
                for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
                    var member = _a[_i];
                    if (member.kind === 149 || member.kind === 147) {
                        if (!member.symbol.isReferenced && ts.getModifierFlags(member) & 8) {
                            error(member.name, ts.Diagnostics._0_is_declared_but_never_used, member.symbol.name);
                        }
                    }
                    else if (member.kind === 150) {
                        for (var _b = 0, _c = member.parameters; _b < _c.length; _b++) {
                            var parameter = _c[_b];
                            if (!parameter.symbol.isReferenced && ts.getModifierFlags(parameter) & 8) {
                                error(parameter.name, ts.Diagnostics.Property_0_is_declared_but_never_used, parameter.symbol.name);
                            }
                        }
                    }
                }
            }
        }
    }
    function checkUnusedTypeParameters(node) {
        if (compilerOptions.noUnusedLocals && !ts.isInAmbientContext(node)) {
            if (node.typeParameters) {
                var symbol = getSymbolOfNode(node);
                var lastDeclaration = symbol && symbol.declarations && ts.lastOrUndefined(symbol.declarations);
                if (lastDeclaration !== node) {
                    return;
                }
                for (var _i = 0, _a = node.typeParameters; _i < _a.length; _i++) {
                    var typeParameter = _a[_i];
                    if (!getMergedSymbol(typeParameter.symbol).isReferenced) {
                        error(typeParameter.name, ts.Diagnostics._0_is_declared_but_never_used, typeParameter.symbol.name);
                    }
                }
            }
        }
    }
    function checkUnusedModuleMembers(node) {
        if (compilerOptions.noUnusedLocals && !ts.isInAmbientContext(node)) {
            for (var key in node.locals) {
                var local = node.locals[key];
                if (!local.isReferenced && !local.exportSymbol) {
                    for (var _i = 0, _a = local.declarations; _i < _a.length; _i++) {
                        var declaration = _a[_i];
                        if (!ts.isAmbientModule(declaration)) {
                            errorUnusedLocal(declaration.name, local.name);
                        }
                    }
                }
            }
        }
    }
    function checkBlock(node) {
        if (node.kind === 204) {
            checkGrammarStatementInAmbientContext(node);
        }
        ts.forEach(node.statements, checkSourceElement);
        if (node.locals) {
            registerForUnusedIdentifiersCheck(node);
        }
    }
    function checkCollisionWithArgumentsInGeneratedCode(node) {
        if (!ts.hasDeclaredRestParameter(node) || ts.isInAmbientContext(node) || ts.nodeIsMissing(node.body)) {
            return;
        }
        ts.forEach(node.parameters, function (p) {
            if (p.name && !ts.isBindingPattern(p.name) && p.name.text === argumentsSymbol.name) {
                error(p, ts.Diagnostics.Duplicate_identifier_arguments_Compiler_uses_arguments_to_initialize_rest_parameters);
            }
        });
    }
    function needCollisionCheckForIdentifier(node, identifier, name) {
        if (!(identifier && identifier.text === name)) {
            return false;
        }
        if (node.kind === 147 ||
            node.kind === 146 ||
            node.kind === 149 ||
            node.kind === 148 ||
            node.kind === 151 ||
            node.kind === 152) {
            return false;
        }
        if (ts.isInAmbientContext(node)) {
            return false;
        }
        var root = ts.getRootDeclaration(node);
        if (root.kind === 144 && ts.nodeIsMissing(root.parent.body)) {
            return false;
        }
        return true;
    }
    function checkCollisionWithCapturedThisVariable(node, name) {
        if (needCollisionCheckForIdentifier(node, name, "_this")) {
            potentialThisCollisions.push(node);
        }
    }
    function checkIfThisIsCapturedInEnclosingScope(node) {
        var current = node;
        while (current) {
            if (getNodeCheckFlags(current) & 4) {
                var isDeclaration_1 = node.kind !== 70;
                if (isDeclaration_1) {
                    error(node.name, ts.Diagnostics.Duplicate_identifier_this_Compiler_uses_variable_declaration_this_to_capture_this_reference);
                }
                else {
                    error(node, ts.Diagnostics.Expression_resolves_to_variable_declaration_this_that_compiler_uses_to_capture_this_reference);
                }
                return;
            }
            current = current.parent;
        }
    }
    function checkCollisionWithCapturedSuperVariable(node, name) {
        if (!needCollisionCheckForIdentifier(node, name, "_super")) {
            return;
        }
        var enclosingClass = ts.getContainingClass(node);
        if (!enclosingClass || ts.isInAmbientContext(enclosingClass)) {
            return;
        }
        if (ts.getClassExtendsHeritageClauseElement(enclosingClass)) {
            var isDeclaration_2 = node.kind !== 70;
            if (isDeclaration_2) {
                error(node, ts.Diagnostics.Duplicate_identifier_super_Compiler_uses_super_to_capture_base_class_reference);
            }
            else {
                error(node, ts.Diagnostics.Expression_resolves_to_super_that_compiler_uses_to_capture_base_class_reference);
            }
        }
    }
    function checkCollisionWithRequireExportsInGeneratedCode(node, name) {
        if (modulekind >= ts.ModuleKind.ES2015) {
            return;
        }
        if (!needCollisionCheckForIdentifier(node, name, "require") && !needCollisionCheckForIdentifier(node, name, "exports")) {
            return;
        }
        if (node.kind === 230 && ts.getModuleInstanceState(node) !== 1) {
            return;
        }
        var parent = getDeclarationContainer(node);
        if (parent.kind === 261 && ts.isExternalOrCommonJsModule(parent)) {
            error(name, ts.Diagnostics.Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module, ts.declarationNameToString(name), ts.declarationNameToString(name));
        }
    }
    function checkCollisionWithGlobalPromiseInGeneratedCode(node, name) {
        if (languageVersion >= 4 || !needCollisionCheckForIdentifier(node, name, "Promise")) {
            return;
        }
        if (node.kind === 230 && ts.getModuleInstanceState(node) !== 1) {
            return;
        }
        var parent = getDeclarationContainer(node);
        if (parent.kind === 261 && ts.isExternalOrCommonJsModule(parent) && parent.flags & 1024) {
            error(name, ts.Diagnostics.Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module_containing_async_functions, ts.declarationNameToString(name), ts.declarationNameToString(name));
        }
    }
    function checkVarDeclaredNamesNotShadowed(node) {
        if ((ts.getCombinedNodeFlags(node) & 3) !== 0 || ts.isParameterDeclaration(node)) {
            return;
        }
        if (node.kind === 223 && !node.initializer) {
            return;
        }
        var symbol = getSymbolOfNode(node);
        if (symbol.flags & 1) {
            var localDeclarationSymbol = resolveName(node, node.name.text, 3, undefined, undefined);
            if (localDeclarationSymbol &&
                localDeclarationSymbol !== symbol &&
                localDeclarationSymbol.flags & 2) {
                if (getDeclarationNodeFlagsFromSymbol(localDeclarationSymbol) & 3) {
                    var varDeclList = ts.getAncestor(localDeclarationSymbol.valueDeclaration, 224);
                    var container = varDeclList.parent.kind === 205 && varDeclList.parent.parent
                        ? varDeclList.parent.parent
                        : undefined;
                    var namesShareScope = container &&
                        (container.kind === 204 && ts.isFunctionLike(container.parent) ||
                            container.kind === 231 ||
                            container.kind === 230 ||
                            container.kind === 261);
                    if (!namesShareScope) {
                        var name_23 = symbolToString(localDeclarationSymbol);
                        error(node, ts.Diagnostics.Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1, name_23, name_23);
                    }
                }
            }
        }
    }
    function checkParameterInitializer(node) {
        if (ts.getRootDeclaration(node).kind !== 144) {
            return;
        }
        var func = ts.getContainingFunction(node);
        visit(node.initializer);
        function visit(n) {
            if (ts.isTypeNode(n) || ts.isDeclarationName(n)) {
                return;
            }
            if (n.kind === 177) {
                return visit(n.expression);
            }
            else if (n.kind === 70) {
                var symbol = resolveName(n, n.text, 107455 | 8388608, undefined, undefined);
                if (!symbol || symbol === unknownSymbol || !symbol.valueDeclaration) {
                    return;
                }
                if (symbol.valueDeclaration === node) {
                    error(n, ts.Diagnostics.Parameter_0_cannot_be_referenced_in_its_initializer, ts.declarationNameToString(node.name));
                    return;
                }
                var enclosingContainer = ts.getEnclosingBlockScopeContainer(symbol.valueDeclaration);
                if (enclosingContainer === func) {
                    if (symbol.valueDeclaration.kind === 144 ||
                        symbol.valueDeclaration.kind === 174) {
                        if (symbol.valueDeclaration.pos < node.pos) {
                            return;
                        }
                        var current = n;
                        while (current !== node.initializer) {
                            if (ts.isFunctionLike(current.parent)) {
                                return;
                            }
                            if (current.parent.kind === 147 &&
                                !(ts.hasModifier(current.parent, 32)) &&
                                ts.isClassLike(current.parent.parent)) {
                                return;
                            }
                            current = current.parent;
                        }
                    }
                    error(n, ts.Diagnostics.Initializer_of_parameter_0_cannot_reference_identifier_1_declared_after_it, ts.declarationNameToString(node.name), ts.declarationNameToString(n));
                }
            }
            else {
                return ts.forEachChild(n, visit);
            }
        }
    }
    function convertAutoToAny(type) {
        return type === autoType ? anyType : type === autoArrayType ? anyArrayType : type;
    }
    function checkVariableLikeDeclaration(node) {
        checkDecorators(node);
        checkSourceElement(node.type);
        if (node.name.kind === 142) {
            checkComputedPropertyName(node.name);
            if (node.initializer) {
                checkExpressionCached(node.initializer);
            }
        }
        if (node.kind === 174) {
            if (node.parent.kind === 172 && languageVersion < 5 && !ts.isInAmbientContext(node)) {
                checkExternalEmitHelpers(node, 4);
            }
            if (node.propertyName && node.propertyName.kind === 142) {
                checkComputedPropertyName(node.propertyName);
            }
            var parent_11 = node.parent.parent;
            var parentType = getTypeForBindingElementParent(parent_11);
            var name_24 = node.propertyName || node.name;
            var property = getPropertyOfType(parentType, ts.getTextOfPropertyName(name_24));
            markPropertyAsReferenced(property);
            if (parent_11.initializer && property && getParentOfSymbol(property)) {
                checkClassPropertyAccess(parent_11, parent_11.initializer, parentType, property);
            }
        }
        if (ts.isBindingPattern(node.name)) {
            ts.forEach(node.name.elements, checkSourceElement);
        }
        if (node.initializer && ts.getRootDeclaration(node).kind === 144 && ts.nodeIsMissing(ts.getContainingFunction(node).body)) {
            error(node, ts.Diagnostics.A_parameter_initializer_is_only_allowed_in_a_function_or_constructor_implementation);
            return;
        }
        if (ts.isBindingPattern(node.name)) {
            if (node.initializer && node.parent.parent.kind !== 212) {
                checkTypeAssignableTo(checkExpressionCached(node.initializer), getWidenedTypeForVariableLikeDeclaration(node), node, undefined);
                checkParameterInitializer(node);
            }
            return;
        }
        var symbol = getSymbolOfNode(node);
        var type = convertAutoToAny(getTypeOfVariableOrParameterOrProperty(symbol));
        if (node === symbol.valueDeclaration) {
            if (node.initializer && node.parent.parent.kind !== 212) {
                checkTypeAssignableTo(checkExpressionCached(node.initializer), type, node, undefined);
                checkParameterInitializer(node);
            }
        }
        else {
            var declarationType = convertAutoToAny(getWidenedTypeForVariableLikeDeclaration(node));
            if (type !== unknownType && declarationType !== unknownType && !isTypeIdenticalTo(type, declarationType)) {
                error(node.name, ts.Diagnostics.Subsequent_variable_declarations_must_have_the_same_type_Variable_0_must_be_of_type_1_but_here_has_type_2, ts.declarationNameToString(node.name), typeToString(type), typeToString(declarationType));
            }
            if (node.initializer) {
                checkTypeAssignableTo(checkExpressionCached(node.initializer), declarationType, node, undefined);
            }
            if (!areDeclarationFlagsIdentical(node, symbol.valueDeclaration)) {
                error(symbol.valueDeclaration.name, ts.Diagnostics.All_declarations_of_0_must_have_identical_modifiers, ts.declarationNameToString(node.name));
                error(node.name, ts.Diagnostics.All_declarations_of_0_must_have_identical_modifiers, ts.declarationNameToString(node.name));
            }
        }
        if (node.kind !== 147 && node.kind !== 146) {
            checkExportsOnMergedDeclarations(node);
            if (node.kind === 223 || node.kind === 174) {
                checkVarDeclaredNamesNotShadowed(node);
            }
            checkCollisionWithCapturedSuperVariable(node, node.name);
            checkCollisionWithCapturedThisVariable(node, node.name);
            checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
            checkCollisionWithGlobalPromiseInGeneratedCode(node, node.name);
        }
    }
    function areDeclarationFlagsIdentical(left, right) {
        if ((left.kind === 144 && right.kind === 223) ||
            (left.kind === 223 && right.kind === 144)) {
            return true;
        }
        if (ts.hasQuestionToken(left) !== ts.hasQuestionToken(right)) {
            return false;
        }
        var interestingFlags = 8 |
            16 |
            256 |
            128 |
            64 |
            32;
        return (ts.getModifierFlags(left) & interestingFlags) === (ts.getModifierFlags(right) & interestingFlags);
    }
    function checkVariableDeclaration(node) {
        checkGrammarVariableDeclaration(node);
        return checkVariableLikeDeclaration(node);
    }
    function checkBindingElement(node) {
        checkGrammarBindingElement(node);
        return checkVariableLikeDeclaration(node);
    }
    function checkVariableStatement(node) {
        checkGrammarDecorators(node) || checkGrammarModifiers(node) || checkGrammarVariableDeclarationList(node.declarationList) || checkGrammarForDisallowedLetOrConstStatement(node);
        ts.forEach(node.declarationList.declarations, checkSourceElement);
    }
    function checkGrammarDisallowedModifiersOnObjectLiteralExpressionMethod(node) {
        if (node.modifiers && node.parent.kind === 176) {
            if (ts.isAsyncFunctionLike(node)) {
                if (node.modifiers.length > 1) {
                    return grammarErrorOnFirstToken(node, ts.Diagnostics.Modifiers_cannot_appear_here);
                }
            }
            else {
                return grammarErrorOnFirstToken(node, ts.Diagnostics.Modifiers_cannot_appear_here);
            }
        }
    }
    function checkExpressionStatement(node) {
        checkGrammarStatementInAmbientContext(node);
        checkExpression(node.expression);
    }
    function checkIfStatement(node) {
        checkGrammarStatementInAmbientContext(node);
        checkExpression(node.expression);
        checkSourceElement(node.thenStatement);
        if (node.thenStatement.kind === 206) {
            error(node.thenStatement, ts.Diagnostics.The_body_of_an_if_statement_cannot_be_the_empty_statement);
        }
        checkSourceElement(node.elseStatement);
    }
    function checkDoStatement(node) {
        checkGrammarStatementInAmbientContext(node);
        checkSourceElement(node.statement);
        checkExpression(node.expression);
    }
    function checkWhileStatement(node) {
        checkGrammarStatementInAmbientContext(node);
        checkExpression(node.expression);
        checkSourceElement(node.statement);
    }
    function checkForStatement(node) {
        if (!checkGrammarStatementInAmbientContext(node)) {
            if (node.initializer && node.initializer.kind === 224) {
                checkGrammarVariableDeclarationList(node.initializer);
            }
        }
        if (node.initializer) {
            if (node.initializer.kind === 224) {
                ts.forEach(node.initializer.declarations, checkVariableDeclaration);
            }
            else {
                checkExpression(node.initializer);
            }
        }
        if (node.condition)
            checkExpression(node.condition);
        if (node.incrementor)
            checkExpression(node.incrementor);
        checkSourceElement(node.statement);
        if (node.locals) {
            registerForUnusedIdentifiersCheck(node);
        }
    }
    function checkForOfStatement(node) {
        checkGrammarForInOrForOfStatement(node);
        if (node.initializer.kind === 224) {
            checkForInOrForOfVariableDeclaration(node);
        }
        else {
            var varExpr = node.initializer;
            var iteratedType = checkRightHandSideOfForOf(node.expression);
            if (varExpr.kind === 175 || varExpr.kind === 176) {
                checkDestructuringAssignment(varExpr, iteratedType || unknownType);
            }
            else {
                var leftType = checkExpression(varExpr);
                checkReferenceExpression(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_of_statement_must_be_a_variable_or_a_property_access);
                if (iteratedType) {
                    checkTypeAssignableTo(iteratedType, leftType, varExpr, undefined);
                }
            }
        }
        checkSourceElement(node.statement);
        if (node.locals) {
            registerForUnusedIdentifiersCheck(node);
        }
    }
    function checkForInStatement(node) {
        checkGrammarForInOrForOfStatement(node);
        var rightType = checkNonNullExpression(node.expression);
        if (node.initializer.kind === 224) {
            var variable = node.initializer.declarations[0];
            if (variable && ts.isBindingPattern(variable.name)) {
                error(variable.name, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern);
            }
            checkForInOrForOfVariableDeclaration(node);
        }
        else {
            var varExpr = node.initializer;
            var leftType = checkExpression(varExpr);
            if (varExpr.kind === 175 || varExpr.kind === 176) {
                error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern);
            }
            else if (!isTypeAssignableTo(getIndexTypeOrString(rightType), leftType)) {
                error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any);
            }
            else {
                checkReferenceExpression(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_a_variable_or_a_property_access);
            }
        }
        if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 540672)) {
            error(node.expression, ts.Diagnostics.The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter);
        }
        checkSourceElement(node.statement);
        if (node.locals) {
            registerForUnusedIdentifiersCheck(node);
        }
    }
    function checkForInOrForOfVariableDeclaration(iterationStatement) {
        var variableDeclarationList = iterationStatement.initializer;
        if (variableDeclarationList.declarations.length >= 1) {
            var decl = variableDeclarationList.declarations[0];
            checkVariableDeclaration(decl);
        }
    }
    function checkRightHandSideOfForOf(rhsExpression) {
        var expressionType = checkNonNullExpression(rhsExpression);
        return checkIteratedTypeOrElementType(expressionType, rhsExpression, true);
    }
    function checkIteratedTypeOrElementType(inputType, errorNode, allowStringInput) {
        if (isTypeAny(inputType)) {
            return inputType;
        }
        if (languageVersion >= 2) {
            return checkElementTypeOfIterable(inputType, errorNode);
        }
        if (allowStringInput) {
            return checkElementTypeOfArrayOrString(inputType, errorNode);
        }
        if (isArrayLikeType(inputType)) {
            var indexType = getIndexTypeOfType(inputType, 1);
            if (indexType) {
                return indexType;
            }
        }
        if (errorNode) {
            error(errorNode, ts.Diagnostics.Type_0_is_not_an_array_type, typeToString(inputType));
        }
        return unknownType;
    }
    function checkElementTypeOfIterable(iterable, errorNode) {
        var elementType = getElementTypeOfIterable(iterable, errorNode);
        if (errorNode && elementType) {
            checkTypeAssignableTo(iterable, createIterableType(elementType), errorNode);
        }
        return elementType || anyType;
    }
    function getElementTypeOfIterable(type, errorNode) {
        if (isTypeAny(type)) {
            return undefined;
        }
        var typeAsIterable = type;
        if (!typeAsIterable.iterableElementType) {
            if ((getObjectFlags(type) & 4) && type.target === getGlobalIterableType()) {
                typeAsIterable.iterableElementType = type.typeArguments[0];
            }
            else {
                var iteratorFunction = getTypeOfPropertyOfType(type, ts.getPropertyNameForKnownSymbolName("iterator"));
                if (isTypeAny(iteratorFunction)) {
                    return undefined;
                }
                var iteratorFunctionSignatures = iteratorFunction ? getSignaturesOfType(iteratorFunction, 0) : emptyArray;
                if (iteratorFunctionSignatures.length === 0) {
                    if (errorNode) {
                        error(errorNode, ts.Diagnostics.Type_must_have_a_Symbol_iterator_method_that_returns_an_iterator);
                    }
                    return undefined;
                }
                typeAsIterable.iterableElementType = getElementTypeOfIterator(getUnionType(ts.map(iteratorFunctionSignatures, getReturnTypeOfSignature), true), errorNode);
            }
        }
        return typeAsIterable.iterableElementType;
    }
    function getElementTypeOfIterator(type, errorNode) {
        if (isTypeAny(type)) {
            return undefined;
        }
        var typeAsIterator = type;
        if (!typeAsIterator.iteratorElementType) {
            if ((getObjectFlags(type) & 4) && type.target === getGlobalIteratorType()) {
                typeAsIterator.iteratorElementType = type.typeArguments[0];
            }
            else {
                var iteratorNextFunction = getTypeOfPropertyOfType(type, "next");
                if (isTypeAny(iteratorNextFunction)) {
                    return undefined;
                }
                var iteratorNextFunctionSignatures = iteratorNextFunction ? getSignaturesOfType(iteratorNextFunction, 0) : emptyArray;
                if (iteratorNextFunctionSignatures.length === 0) {
                    if (errorNode) {
                        error(errorNode, ts.Diagnostics.An_iterator_must_have_a_next_method);
                    }
                    return undefined;
                }
                var iteratorNextResult = getUnionType(ts.map(iteratorNextFunctionSignatures, getReturnTypeOfSignature), true);
                if (isTypeAny(iteratorNextResult)) {
                    return undefined;
                }
                var iteratorNextValue = getTypeOfPropertyOfType(iteratorNextResult, "value");
                if (!iteratorNextValue) {
                    if (errorNode) {
                        error(errorNode, ts.Diagnostics.The_type_returned_by_the_next_method_of_an_iterator_must_have_a_value_property);
                    }
                    return undefined;
                }
                typeAsIterator.iteratorElementType = iteratorNextValue;
            }
        }
        return typeAsIterator.iteratorElementType;
    }
    function getElementTypeOfIterableIterator(type) {
        if (isTypeAny(type)) {
            return undefined;
        }
        if ((getObjectFlags(type) & 4) && type.target === getGlobalIterableIteratorType()) {
            return type.typeArguments[0];
        }
        return getElementTypeOfIterable(type, undefined) ||
            getElementTypeOfIterator(type, undefined);
    }
    function checkElementTypeOfArrayOrString(arrayOrStringType, errorNode) {
        ts.Debug.assert(languageVersion < 2);
        var arrayType = arrayOrStringType;
        if (arrayOrStringType.flags & 65536) {
            var arrayTypes = arrayOrStringType.types;
            var filteredTypes = ts.filter(arrayTypes, function (t) { return !(t.flags & 262178); });
            if (filteredTypes !== arrayTypes) {
                arrayType = getUnionType(filteredTypes, true);
            }
        }
        else if (arrayOrStringType.flags & 262178) {
            arrayType = neverType;
        }
        var hasStringConstituent = arrayOrStringType !== arrayType;
        var reportedError = false;
        if (hasStringConstituent) {
            if (languageVersion < 1) {
                error(errorNode, ts.Diagnostics.Using_a_string_in_a_for_of_statement_is_only_supported_in_ECMAScript_5_and_higher);
                reportedError = true;
            }
            if (arrayType.flags & 8192) {
                return stringType;
            }
        }
        if (!isArrayLikeType(arrayType)) {
            if (!reportedError) {
                var diagnostic = hasStringConstituent
                    ? ts.Diagnostics.Type_0_is_not_an_array_type
                    : ts.Diagnostics.Type_0_is_not_an_array_type_or_a_string_type;
                error(errorNode, diagnostic, typeToString(arrayType));
            }
            return hasStringConstituent ? stringType : unknownType;
        }
        var arrayElementType = getIndexTypeOfType(arrayType, 1) || unknownType;
        if (hasStringConstituent) {
            if (arrayElementType.flags & 262178) {
                return stringType;
            }
            return getUnionType([arrayElementType, stringType], true);
        }
        return arrayElementType;
    }
    function checkBreakOrContinueStatement(node) {
        checkGrammarStatementInAmbientContext(node) || checkGrammarBreakOrContinueStatement(node);
    }
    function isGetAccessorWithAnnotatedSetAccessor(node) {
        return !!(node.kind === 151 && ts.getSetAccessorTypeAnnotationNode(ts.getDeclarationOfKind(node.symbol, 152)));
    }
    function isUnwrappedReturnTypeVoidOrAny(func, returnType) {
        var unwrappedReturnType = ts.isAsyncFunctionLike(func) ? getPromisedType(returnType) : returnType;
        return unwrappedReturnType && maybeTypeOfKind(unwrappedReturnType, 1024 | 1);
    }
    function checkReturnStatement(node) {
        if (!checkGrammarStatementInAmbientContext(node)) {
            var functionBlock = ts.getContainingFunction(node);
            if (!functionBlock) {
                grammarErrorOnFirstToken(node, ts.Diagnostics.A_return_statement_can_only_be_used_within_a_function_body);
            }
        }
        var func = ts.getContainingFunction(node);
        if (func) {
            var signature = getSignatureFromDeclaration(func);
            var returnType = getReturnTypeOfSignature(signature);
            if (strictNullChecks || node.expression || returnType.flags & 8192) {
                var exprType = node.expression ? checkExpressionCached(node.expression) : undefinedType;
                if (func.asteriskToken) {
                    return;
                }
                if (func.kind === 152) {
                    if (node.expression) {
                        error(node.expression, ts.Diagnostics.Setters_cannot_return_a_value);
                    }
                }
                else if (func.kind === 150) {
                    if (node.expression && !checkTypeAssignableTo(exprType, returnType, node.expression)) {
                        error(node.expression, ts.Diagnostics.Return_type_of_constructor_signature_must_be_assignable_to_the_instance_type_of_the_class);
                    }
                }
                else if (func.type || isGetAccessorWithAnnotatedSetAccessor(func)) {
                    if (ts.isAsyncFunctionLike(func)) {
                        var promisedType = getPromisedType(returnType);
                        var awaitedType = checkAwaitedType(exprType, node.expression || node, ts.Diagnostics.Return_expression_in_async_function_does_not_have_a_valid_callable_then_member);
                        if (promisedType) {
                            checkTypeAssignableTo(awaitedType, promisedType, node.expression || node);
                        }
                    }
                    else {
                        checkTypeAssignableTo(exprType, returnType, node.expression || node);
                    }
                }
            }
            else if (func.kind !== 150 && compilerOptions.noImplicitReturns && !isUnwrappedReturnTypeVoidOrAny(func, returnType)) {
                error(node, ts.Diagnostics.Not_all_code_paths_return_a_value);
            }
        }
    }
    function checkWithStatement(node) {
        if (!checkGrammarStatementInAmbientContext(node)) {
            if (node.flags & 16384) {
                grammarErrorOnFirstToken(node, ts.Diagnostics.with_statements_are_not_allowed_in_an_async_function_block);
            }
        }
        checkExpression(node.expression);
        var sourceFile = ts.getSourceFileOfNode(node);
        if (!hasParseDiagnostics(sourceFile)) {
            var start = ts.getSpanOfTokenAtPosition(sourceFile, node.pos).start;
            var end = node.statement.pos;
            grammarErrorAtPos(sourceFile, start, end - start, ts.Diagnostics.The_with_statement_is_not_supported_All_symbols_in_a_with_block_will_have_type_any);
        }
    }
    function checkSwitchStatement(node) {
        checkGrammarStatementInAmbientContext(node);
        var firstDefaultClause;
        var hasDuplicateDefaultClause = false;
        var expressionType = checkExpression(node.expression);
        var expressionIsLiteral = isLiteralType(expressionType);
        ts.forEach(node.caseBlock.clauses, function (clause) {
            if (clause.kind === 254 && !hasDuplicateDefaultClause) {
                if (firstDefaultClause === undefined) {
                    firstDefaultClause = clause;
                }
                else {
                    var sourceFile = ts.getSourceFileOfNode(node);
                    var start = ts.skipTrivia(sourceFile.text, clause.pos);
                    var end = clause.statements.length > 0 ? clause.statements[0].pos : clause.end;
                    grammarErrorAtPos(sourceFile, start, end - start, ts.Diagnostics.A_default_clause_cannot_appear_more_than_once_in_a_switch_statement);
                    hasDuplicateDefaultClause = true;
                }
            }
            if (produceDiagnostics && clause.kind === 253) {
                var caseClause = clause;
                var caseType = checkExpression(caseClause.expression);
                var caseIsLiteral = isLiteralType(caseType);
                var comparedExpressionType = expressionType;
                if (!caseIsLiteral || !expressionIsLiteral) {
                    caseType = caseIsLiteral ? getBaseTypeOfLiteralType(caseType) : caseType;
                    comparedExpressionType = getBaseTypeOfLiteralType(expressionType);
                }
                if (!isTypeEqualityComparableTo(comparedExpressionType, caseType)) {
                    checkTypeComparableTo(caseType, comparedExpressionType, caseClause.expression, undefined);
                }
            }
            ts.forEach(clause.statements, checkSourceElement);
        });
        if (node.caseBlock.locals) {
            registerForUnusedIdentifiersCheck(node.caseBlock);
        }
    }
    function checkLabeledStatement(node) {
        if (!checkGrammarStatementInAmbientContext(node)) {
            var current = node.parent;
            while (current) {
                if (ts.isFunctionLike(current)) {
                    break;
                }
                if (current.kind === 219 && current.label.text === node.label.text) {
                    var sourceFile = ts.getSourceFileOfNode(node);
                    grammarErrorOnNode(node.label, ts.Diagnostics.Duplicate_label_0, ts.getTextOfNodeFromSourceText(sourceFile.text, node.label));
                    break;
                }
                current = current.parent;
            }
        }
        checkSourceElement(node.statement);
    }
    function checkThrowStatement(node) {
        if (!checkGrammarStatementInAmbientContext(node)) {
            if (node.expression === undefined) {
                grammarErrorAfterFirstToken(node, ts.Diagnostics.Line_break_not_permitted_here);
            }
        }
        if (node.expression) {
            checkExpression(node.expression);
        }
    }
    function checkTryStatement(node) {
        checkGrammarStatementInAmbientContext(node);
        checkBlock(node.tryBlock);
        var catchClause = node.catchClause;
        if (catchClause) {
            if (catchClause.variableDeclaration) {
                if (catchClause.variableDeclaration.type) {
                    grammarErrorOnFirstToken(catchClause.variableDeclaration.type, ts.Diagnostics.Catch_clause_variable_cannot_have_a_type_annotation);
                }
                else if (catchClause.variableDeclaration.initializer) {
                    grammarErrorOnFirstToken(catchClause.variableDeclaration.initializer, ts.Diagnostics.Catch_clause_variable_cannot_have_an_initializer);
                }
                else {
                    var blockLocals = catchClause.block.locals;
                    if (blockLocals) {
                        for (var caughtName in catchClause.locals) {
                            var blockLocal = blockLocals[caughtName];
                            if (blockLocal && (blockLocal.flags & 2) !== 0) {
                                grammarErrorOnNode(blockLocal.valueDeclaration, ts.Diagnostics.Cannot_redeclare_identifier_0_in_catch_clause, caughtName);
                            }
                        }
                    }
                }
            }
            checkBlock(catchClause.block);
        }
        if (node.finallyBlock) {
            checkBlock(node.finallyBlock);
        }
    }
    function checkIndexConstraints(type) {
        var declaredNumberIndexer = getIndexDeclarationOfSymbol(type.symbol, 1);
        var declaredStringIndexer = getIndexDeclarationOfSymbol(type.symbol, 0);
        var stringIndexType = getIndexTypeOfType(type, 0);
        var numberIndexType = getIndexTypeOfType(type, 1);
        if (stringIndexType || numberIndexType) {
            ts.forEach(getPropertiesOfObjectType(type), function (prop) {
                var propType = getTypeOfSymbol(prop);
                checkIndexConstraintForProperty(prop, propType, type, declaredStringIndexer, stringIndexType, 0);
                checkIndexConstraintForProperty(prop, propType, type, declaredNumberIndexer, numberIndexType, 1);
            });
            if (getObjectFlags(type) & 1 && ts.isClassLike(type.symbol.valueDeclaration)) {
                var classDeclaration = type.symbol.valueDeclaration;
                for (var _i = 0, _a = classDeclaration.members; _i < _a.length; _i++) {
                    var member = _a[_i];
                    if (!(ts.getModifierFlags(member) & 32) && ts.hasDynamicName(member)) {
                        var propType = getTypeOfSymbol(member.symbol);
                        checkIndexConstraintForProperty(member.symbol, propType, type, declaredStringIndexer, stringIndexType, 0);
                        checkIndexConstraintForProperty(member.symbol, propType, type, declaredNumberIndexer, numberIndexType, 1);
                    }
                }
            }
        }
        var errorNode;
        if (stringIndexType && numberIndexType) {
            errorNode = declaredNumberIndexer || declaredStringIndexer;
            if (!errorNode && (getObjectFlags(type) & 2)) {
                var someBaseTypeHasBothIndexers = ts.forEach(getBaseTypes(type), function (base) { return getIndexTypeOfType(base, 0) && getIndexTypeOfType(base, 1); });
                errorNode = someBaseTypeHasBothIndexers ? undefined : type.symbol.declarations[0];
            }
        }
        if (errorNode && !isTypeAssignableTo(numberIndexType, stringIndexType)) {
            error(errorNode, ts.Diagnostics.Numeric_index_type_0_is_not_assignable_to_string_index_type_1, typeToString(numberIndexType), typeToString(stringIndexType));
        }
        function checkIndexConstraintForProperty(prop, propertyType, containingType, indexDeclaration, indexType, indexKind) {
            if (!indexType) {
                return;
            }
            if (indexKind === 1 && !isNumericName(prop.valueDeclaration.name)) {
                return;
            }
            var errorNode;
            if (prop.valueDeclaration.name.kind === 142 || prop.parent === containingType.symbol) {
                errorNode = prop.valueDeclaration;
            }
            else if (indexDeclaration) {
                errorNode = indexDeclaration;
            }
            else if (getObjectFlags(containingType) & 2) {
                var someBaseClassHasBothPropertyAndIndexer = ts.forEach(getBaseTypes(containingType), function (base) { return getPropertyOfObjectType(base, prop.name) && getIndexTypeOfType(base, indexKind); });
                errorNode = someBaseClassHasBothPropertyAndIndexer ? undefined : containingType.symbol.declarations[0];
            }
            if (errorNode && !isTypeAssignableTo(propertyType, indexType)) {
                var errorMessage = indexKind === 0
                    ? ts.Diagnostics.Property_0_of_type_1_is_not_assignable_to_string_index_type_2
                    : ts.Diagnostics.Property_0_of_type_1_is_not_assignable_to_numeric_index_type_2;
                error(errorNode, errorMessage, symbolToString(prop), typeToString(propertyType), typeToString(indexType));
            }
        }
    }
    function checkTypeNameIsReserved(name, message) {
        switch (name.text) {
            case "any":
            case "number":
            case "boolean":
            case "string":
            case "symbol":
            case "void":
                error(name, message, name.text);
        }
    }
    function checkTypeParameters(typeParameterDeclarations) {
        if (typeParameterDeclarations) {
            for (var i = 0, n = typeParameterDeclarations.length; i < n; i++) {
                var node = typeParameterDeclarations[i];
                checkTypeParameter(node);
                if (produceDiagnostics) {
                    for (var j = 0; j < i; j++) {
                        if (typeParameterDeclarations[j].symbol === node.symbol) {
                            error(node.name, ts.Diagnostics.Duplicate_identifier_0, ts.declarationNameToString(node.name));
                        }
                    }
                }
            }
        }
    }
    function checkTypeParameterListsIdentical(node, symbol) {
        if (symbol.declarations.length === 1) {
            return;
        }
        var firstDecl;
        for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
            var declaration = _a[_i];
            if (declaration.kind === 226 || declaration.kind === 227) {
                if (!firstDecl) {
                    firstDecl = declaration;
                }
                else if (!areTypeParametersIdentical(firstDecl.typeParameters, node.typeParameters)) {
                    error(node.name, ts.Diagnostics.All_declarations_of_0_must_have_identical_type_parameters, node.name.text);
                }
            }
        }
    }
    function checkClassExpression(node) {
        checkClassLikeDeclaration(node);
        checkNodeDeferred(node);
        return getTypeOfSymbol(getSymbolOfNode(node));
    }
    function checkClassExpressionDeferred(node) {
        ts.forEach(node.members, checkSourceElement);
        registerForUnusedIdentifiersCheck(node);
    }
    function checkClassDeclaration(node) {
        if (!node.name && !(ts.getModifierFlags(node) & 512)) {
            grammarErrorOnFirstToken(node, ts.Diagnostics.A_class_declaration_without_the_default_modifier_must_have_a_name);
        }
        checkClassLikeDeclaration(node);
        ts.forEach(node.members, checkSourceElement);
        registerForUnusedIdentifiersCheck(node);
    }
    function checkClassLikeDeclaration(node) {
        checkGrammarClassDeclarationHeritageClauses(node);
        checkDecorators(node);
        if (node.name) {
            checkTypeNameIsReserved(node.name, ts.Diagnostics.Class_name_cannot_be_0);
            checkCollisionWithCapturedThisVariable(node, node.name);
            checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
            checkCollisionWithGlobalPromiseInGeneratedCode(node, node.name);
        }
        checkTypeParameters(node.typeParameters);
        checkExportsOnMergedDeclarations(node);
        var symbol = getSymbolOfNode(node);
        var type = getDeclaredTypeOfSymbol(symbol);
        var typeWithThis = getTypeWithThisArgument(type);
        var staticType = getTypeOfSymbol(symbol);
        checkTypeParameterListsIdentical(node, symbol);
        checkClassForDuplicateDeclarations(node);
        var baseTypeNode = ts.getClassExtendsHeritageClauseElement(node);
        if (baseTypeNode) {
            if (languageVersion < 2 && !ts.isInAmbientContext(node)) {
                checkExternalEmitHelpers(baseTypeNode.parent, 1);
            }
            var baseTypes = getBaseTypes(type);
            if (baseTypes.length && produceDiagnostics) {
                var baseType_1 = baseTypes[0];
                var staticBaseType = getBaseConstructorTypeOfClass(type);
                checkBaseTypeAccessibility(staticBaseType, baseTypeNode);
                checkSourceElement(baseTypeNode.expression);
                if (baseTypeNode.typeArguments) {
                    ts.forEach(baseTypeNode.typeArguments, checkSourceElement);
                    for (var _i = 0, _a = getConstructorsForTypeArguments(staticBaseType, baseTypeNode.typeArguments); _i < _a.length; _i++) {
                        var constructor = _a[_i];
                        if (!checkTypeArgumentConstraints(constructor.typeParameters, baseTypeNode.typeArguments)) {
                            break;
                        }
                    }
                }
                checkTypeAssignableTo(typeWithThis, getTypeWithThisArgument(baseType_1, type.thisType), node.name || node, ts.Diagnostics.Class_0_incorrectly_extends_base_class_1);
                checkTypeAssignableTo(staticType, getTypeWithoutSignatures(staticBaseType), node.name || node, ts.Diagnostics.Class_static_side_0_incorrectly_extends_base_class_static_side_1);
                if (baseType_1.symbol.valueDeclaration &&
                    !ts.isInAmbientContext(baseType_1.symbol.valueDeclaration) &&
                    baseType_1.symbol.valueDeclaration.kind === 226) {
                    if (!isBlockScopedNameDeclaredBeforeUse(baseType_1.symbol.valueDeclaration, node)) {
                        error(baseTypeNode, ts.Diagnostics.A_class_must_be_declared_after_its_base_class);
                    }
                }
                if (!(staticBaseType.symbol && staticBaseType.symbol.flags & 32)) {
                    var constructors = getInstantiatedConstructorsForTypeArguments(staticBaseType, baseTypeNode.typeArguments);
                    if (ts.forEach(constructors, function (sig) { return getReturnTypeOfSignature(sig) !== baseType_1; })) {
                        error(baseTypeNode.expression, ts.Diagnostics.Base_constructors_must_all_have_the_same_return_type);
                    }
                }
                checkKindsOfPropertyMemberOverrides(type, baseType_1);
            }
        }
        var implementedTypeNodes = ts.getClassImplementsHeritageClauseElements(node);
        if (implementedTypeNodes) {
            for (var _b = 0, implementedTypeNodes_1 = implementedTypeNodes; _b < implementedTypeNodes_1.length; _b++) {
                var typeRefNode = implementedTypeNodes_1[_b];
                if (!ts.isEntityNameExpression(typeRefNode.expression)) {
                    error(typeRefNode.expression, ts.Diagnostics.A_class_can_only_implement_an_identifier_Slashqualified_name_with_optional_type_arguments);
                }
                checkTypeReferenceNode(typeRefNode);
                if (produceDiagnostics) {
                    var t = getTypeFromTypeNode(typeRefNode);
                    if (t !== unknownType) {
                        var declaredType = getObjectFlags(t) & 4 ? t.target : t;
                        if (getObjectFlags(declaredType) & 3) {
                            checkTypeAssignableTo(typeWithThis, getTypeWithThisArgument(t, type.thisType), node.name || node, ts.Diagnostics.Class_0_incorrectly_implements_interface_1);
                        }
                        else {
                            error(typeRefNode, ts.Diagnostics.A_class_may_only_implement_another_class_or_interface);
                        }
                    }
                }
            }
        }
        if (produceDiagnostics) {
            checkIndexConstraints(type);
            checkTypeForDuplicateIndexSignatures(node);
        }
    }
    function checkBaseTypeAccessibility(type, node) {
        var signatures = getSignaturesOfType(type, 1);
        if (signatures.length) {
            var declaration = signatures[0].declaration;
            if (declaration && ts.getModifierFlags(declaration) & 8) {
                var typeClassDeclaration = getClassLikeDeclarationOfSymbol(type.symbol);
                if (!isNodeWithinClass(node, typeClassDeclaration)) {
                    error(node, ts.Diagnostics.Cannot_extend_a_class_0_Class_constructor_is_marked_as_private, getFullyQualifiedName(type.symbol));
                }
            }
        }
    }
    function getTargetSymbol(s) {
        return s.flags & 16777216 ? getSymbolLinks(s).target : s;
    }
    function getClassLikeDeclarationOfSymbol(symbol) {
        return ts.forEach(symbol.declarations, function (d) { return ts.isClassLike(d) ? d : undefined; });
    }
    function checkKindsOfPropertyMemberOverrides(type, baseType) {
        var baseProperties = getPropertiesOfObjectType(baseType);
        for (var _i = 0, baseProperties_1 = baseProperties; _i < baseProperties_1.length; _i++) {
            var baseProperty = baseProperties_1[_i];
            var base = getTargetSymbol(baseProperty);
            if (base.flags & 134217728) {
                continue;
            }
            var derived = getTargetSymbol(getPropertyOfObjectType(type, base.name));
            var baseDeclarationFlags = getDeclarationModifierFlagsFromSymbol(base);
            ts.Debug.assert(!!derived, "derived should point to something, even if it is the base class' declaration.");
            if (derived) {
                if (derived === base) {
                    var derivedClassDecl = getClassLikeDeclarationOfSymbol(type.symbol);
                    if (baseDeclarationFlags & 128 && (!derivedClassDecl || !(ts.getModifierFlags(derivedClassDecl) & 128))) {
                        if (derivedClassDecl.kind === 197) {
                            error(derivedClassDecl, ts.Diagnostics.Non_abstract_class_expression_does_not_implement_inherited_abstract_member_0_from_class_1, symbolToString(baseProperty), typeToString(baseType));
                        }
                        else {
                            error(derivedClassDecl, ts.Diagnostics.Non_abstract_class_0_does_not_implement_inherited_abstract_member_1_from_class_2, typeToString(type), symbolToString(baseProperty), typeToString(baseType));
                        }
                    }
                }
                else {
                    var derivedDeclarationFlags = getDeclarationModifierFlagsFromSymbol(derived);
                    if ((baseDeclarationFlags & 8) || (derivedDeclarationFlags & 8)) {
                        continue;
                    }
                    if ((baseDeclarationFlags & 32) !== (derivedDeclarationFlags & 32)) {
                        continue;
                    }
                    if ((base.flags & derived.flags & 8192) || ((base.flags & 98308) && (derived.flags & 98308))) {
                        continue;
                    }
                    var errorMessage = void 0;
                    if (base.flags & 8192) {
                        if (derived.flags & 98304) {
                            errorMessage = ts.Diagnostics.Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_accessor;
                        }
                        else {
                            ts.Debug.assert((derived.flags & 4) !== 0);
                            errorMessage = ts.Diagnostics.Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_property;
                        }
                    }
                    else if (base.flags & 4) {
                        ts.Debug.assert((derived.flags & 8192) !== 0);
                        errorMessage = ts.Diagnostics.Class_0_defines_instance_member_property_1_but_extended_class_2_defines_it_as_instance_member_function;
                    }
                    else {
                        ts.Debug.assert((base.flags & 98304) !== 0);
                        ts.Debug.assert((derived.flags & 8192) !== 0);
                        errorMessage = ts.Diagnostics.Class_0_defines_instance_member_accessor_1_but_extended_class_2_defines_it_as_instance_member_function;
                    }
                    error(derived.valueDeclaration.name, errorMessage, typeToString(baseType), symbolToString(base), typeToString(type));
                }
            }
        }
    }
    function isAccessor(kind) {
        return kind === 151 || kind === 152;
    }
    function areTypeParametersIdentical(list1, list2) {
        if (!list1 && !list2) {
            return true;
        }
        if (!list1 || !list2 || list1.length !== list2.length) {
            return false;
        }
        for (var i = 0, len = list1.length; i < len; i++) {
            var tp1 = list1[i];
            var tp2 = list2[i];
            if (tp1.name.text !== tp2.name.text) {
                return false;
            }
            if (!tp1.constraint && !tp2.constraint) {
                continue;
            }
            if (!tp1.constraint || !tp2.constraint) {
                return false;
            }
            if (!isTypeIdenticalTo(getTypeFromTypeNode(tp1.constraint), getTypeFromTypeNode(tp2.constraint))) {
                return false;
            }
        }
        return true;
    }
    function checkInheritedPropertiesAreIdentical(type, typeNode) {
        var baseTypes = getBaseTypes(type);
        if (baseTypes.length < 2) {
            return true;
        }
        var seen = ts.createMap();
        ts.forEach(resolveDeclaredMembers(type).declaredProperties, function (p) { seen[p.name] = { prop: p, containingType: type }; });
        var ok = true;
        for (var _i = 0, baseTypes_2 = baseTypes; _i < baseTypes_2.length; _i++) {
            var base = baseTypes_2[_i];
            var properties = getPropertiesOfObjectType(getTypeWithThisArgument(base, type.thisType));
            for (var _a = 0, properties_7 = properties; _a < properties_7.length; _a++) {
                var prop = properties_7[_a];
                var existing = seen[prop.name];
                if (!existing) {
                    seen[prop.name] = { prop: prop, containingType: base };
                }
                else {
                    var isInheritedProperty = existing.containingType !== type;
                    if (isInheritedProperty && !isPropertyIdenticalTo(existing.prop, prop)) {
                        ok = false;
                        var typeName1 = typeToString(existing.containingType);
                        var typeName2 = typeToString(base);
                        var errorInfo = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Named_property_0_of_types_1_and_2_are_not_identical, symbolToString(prop), typeName1, typeName2);
                        errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.Interface_0_cannot_simultaneously_extend_types_1_and_2, typeToString(type), typeName1, typeName2);
                        diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(typeNode, errorInfo));
                    }
                }
            }
        }
        return ok;
    }
    function checkInterfaceDeclaration(node) {
        checkGrammarDecorators(node) || checkGrammarModifiers(node) || checkGrammarInterfaceDeclaration(node);
        checkTypeParameters(node.typeParameters);
        if (produceDiagnostics) {
            checkTypeNameIsReserved(node.name, ts.Diagnostics.Interface_name_cannot_be_0);
            checkExportsOnMergedDeclarations(node);
            var symbol = getSymbolOfNode(node);
            checkTypeParameterListsIdentical(node, symbol);
            var firstInterfaceDecl = ts.getDeclarationOfKind(symbol, 227);
            if (node === firstInterfaceDecl) {
                var type = getDeclaredTypeOfSymbol(symbol);
                var typeWithThis = getTypeWithThisArgument(type);
                if (checkInheritedPropertiesAreIdentical(type, node.name)) {
                    for (var _i = 0, _a = getBaseTypes(type); _i < _a.length; _i++) {
                        var baseType = _a[_i];
                        checkTypeAssignableTo(typeWithThis, getTypeWithThisArgument(baseType, type.thisType), node.name, ts.Diagnostics.Interface_0_incorrectly_extends_interface_1);
                    }
                    checkIndexConstraints(type);
                }
            }
            checkObjectTypeForDuplicateDeclarations(node);
        }
        ts.forEach(ts.getInterfaceBaseTypeNodes(node), function (heritageElement) {
            if (!ts.isEntityNameExpression(heritageElement.expression)) {
                error(heritageElement.expression, ts.Diagnostics.An_interface_can_only_extend_an_identifier_Slashqualified_name_with_optional_type_arguments);
            }
            checkTypeReferenceNode(heritageElement);
        });
        ts.forEach(node.members, checkSourceElement);
        if (produceDiagnostics) {
            checkTypeForDuplicateIndexSignatures(node);
            registerForUnusedIdentifiersCheck(node);
        }
    }
    function checkTypeAliasDeclaration(node) {
        checkGrammarDecorators(node) || checkGrammarModifiers(node);
        checkTypeNameIsReserved(node.name, ts.Diagnostics.Type_alias_name_cannot_be_0);
        checkTypeParameters(node.typeParameters);
        checkSourceElement(node.type);
    }
    function computeEnumMemberValues(node) {
        var nodeLinks = getNodeLinks(node);
        if (!(nodeLinks.flags & 16384)) {
            var enumSymbol = getSymbolOfNode(node);
            var enumType = getDeclaredTypeOfSymbol(enumSymbol);
            var autoValue = 0;
            var ambient = ts.isInAmbientContext(node);
            var enumIsConst = ts.isConst(node);
            for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
                var member = _a[_i];
                if (isComputedNonLiteralName(member.name)) {
                    error(member.name, ts.Diagnostics.Computed_property_names_are_not_allowed_in_enums);
                }
                else {
                    var text = ts.getTextOfPropertyName(member.name);
                    if (isNumericLiteralName(text) && !isInfinityOrNaNString(text)) {
                        error(member.name, ts.Diagnostics.An_enum_member_cannot_have_a_numeric_name);
                    }
                }
                var previousEnumMemberIsNonConstant = autoValue === undefined;
                var initializer = member.initializer;
                if (initializer) {
                    autoValue = computeConstantValueForEnumMemberInitializer(initializer, enumType, enumIsConst, ambient);
                }
                else if (ambient && !enumIsConst) {
                    autoValue = undefined;
                }
                else if (previousEnumMemberIsNonConstant) {
                    error(member.name, ts.Diagnostics.Enum_member_must_have_initializer);
                }
                if (autoValue !== undefined) {
                    getNodeLinks(member).enumMemberValue = autoValue;
                    autoValue++;
                }
            }
            nodeLinks.flags |= 16384;
        }
        function computeConstantValueForEnumMemberInitializer(initializer, enumType, enumIsConst, ambient) {
            var reportError = true;
            var value = evalConstant(initializer);
            if (reportError) {
                if (value === undefined) {
                    if (enumIsConst) {
                        error(initializer, ts.Diagnostics.In_const_enum_declarations_member_initializer_must_be_constant_expression);
                    }
                    else if (ambient) {
                        error(initializer, ts.Diagnostics.In_ambient_enum_declarations_member_initializer_must_be_constant_expression);
                    }
                    else {
                        checkTypeAssignableTo(checkExpression(initializer), enumType, initializer, undefined);
                    }
                }
                else if (enumIsConst) {
                    if (isNaN(value)) {
                        error(initializer, ts.Diagnostics.const_enum_member_initializer_was_evaluated_to_disallowed_value_NaN);
                    }
                    else if (!isFinite(value)) {
                        error(initializer, ts.Diagnostics.const_enum_member_initializer_was_evaluated_to_a_non_finite_value);
                    }
                }
            }
            return value;
            function evalConstant(e) {
                switch (e.kind) {
                    case 190:
                        var value_1 = evalConstant(e.operand);
                        if (value_1 === undefined) {
                            return undefined;
                        }
                        switch (e.operator) {
                            case 36: return value_1;
                            case 37: return -value_1;
                            case 51: return ~value_1;
                        }
                        return undefined;
                    case 192:
                        var left = evalConstant(e.left);
                        if (left === undefined) {
                            return undefined;
                        }
                        var right = evalConstant(e.right);
                        if (right === undefined) {
                            return undefined;
                        }
                        switch (e.operatorToken.kind) {
                            case 48: return left | right;
                            case 47: return left & right;
                            case 45: return left >> right;
                            case 46: return left >>> right;
                            case 44: return left << right;
                            case 49: return left ^ right;
                            case 38: return left * right;
                            case 40: return left / right;
                            case 36: return left + right;
                            case 37: return left - right;
                            case 41: return left % right;
                        }
                        return undefined;
                    case 8:
                        return +e.text;
                    case 183:
                        return evalConstant(e.expression);
                    case 70:
                    case 178:
                    case 177:
                        var member = initializer.parent;
                        var currentType = getTypeOfSymbol(getSymbolOfNode(member.parent));
                        var enumType_1;
                        var propertyName = void 0;
                        if (e.kind === 70) {
                            enumType_1 = currentType;
                            propertyName = e.text;
                        }
                        else {
                            var expression = void 0;
                            if (e.kind === 178) {
                                if (e.argumentExpression === undefined ||
                                    e.argumentExpression.kind !== 9) {
                                    return undefined;
                                }
                                expression = e.expression;
                                propertyName = e.argumentExpression.text;
                            }
                            else {
                                expression = e.expression;
                                propertyName = e.name.text;
                            }
                            var current = expression;
                            while (current) {
                                if (current.kind === 70) {
                                    break;
                                }
                                else if (current.kind === 177) {
                                    current = current.expression;
                                }
                                else {
                                    return undefined;
                                }
                            }
                            enumType_1 = getTypeOfExpression(expression);
                            if (!(enumType_1.symbol && (enumType_1.symbol.flags & 384))) {
                                return undefined;
                            }
                        }
                        if (propertyName === undefined) {
                            return undefined;
                        }
                        var property = getPropertyOfObjectType(enumType_1, propertyName);
                        if (!property || !(property.flags & 8)) {
                            return undefined;
                        }
                        var propertyDecl = property.valueDeclaration;
                        if (member === propertyDecl) {
                            return undefined;
                        }
                        if (!isBlockScopedNameDeclaredBeforeUse(propertyDecl, member)) {
                            reportError = false;
                            error(e, ts.Diagnostics.A_member_initializer_in_a_enum_declaration_cannot_reference_members_declared_after_it_including_members_defined_in_other_enums);
                            return undefined;
                        }
                        return getNodeLinks(propertyDecl).enumMemberValue;
                }
            }
        }
    }
    function checkEnumDeclaration(node) {
        if (!produceDiagnostics) {
            return;
        }
        checkGrammarDecorators(node) || checkGrammarModifiers(node);
        checkTypeNameIsReserved(node.name, ts.Diagnostics.Enum_name_cannot_be_0);
        checkCollisionWithCapturedThisVariable(node, node.name);
        checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
        checkCollisionWithGlobalPromiseInGeneratedCode(node, node.name);
        checkExportsOnMergedDeclarations(node);
        computeEnumMemberValues(node);
        var enumIsConst = ts.isConst(node);
        if (compilerOptions.isolatedModules && enumIsConst && ts.isInAmbientContext(node)) {
            error(node.name, ts.Diagnostics.Ambient_const_enums_are_not_allowed_when_the_isolatedModules_flag_is_provided);
        }
        var enumSymbol = getSymbolOfNode(node);
        var firstDeclaration = ts.getDeclarationOfKind(enumSymbol, node.kind);
        if (node === firstDeclaration) {
            if (enumSymbol.declarations.length > 1) {
                ts.forEach(enumSymbol.declarations, function (decl) {
                    if (ts.isConstEnumDeclaration(decl) !== enumIsConst) {
                        error(decl.name, ts.Diagnostics.Enum_declarations_must_all_be_const_or_non_const);
                    }
                });
            }
            var seenEnumMissingInitialInitializer_1 = false;
            ts.forEach(enumSymbol.declarations, function (declaration) {
                if (declaration.kind !== 229) {
                    return false;
                }
                var enumDeclaration = declaration;
                if (!enumDeclaration.members.length) {
                    return false;
                }
                var firstEnumMember = enumDeclaration.members[0];
                if (!firstEnumMember.initializer) {
                    if (seenEnumMissingInitialInitializer_1) {
                        error(firstEnumMember.name, ts.Diagnostics.In_an_enum_with_multiple_declarations_only_one_declaration_can_omit_an_initializer_for_its_first_enum_element);
                    }
                    else {
                        seenEnumMissingInitialInitializer_1 = true;
                    }
                }
            });
        }
    }
    function getFirstNonAmbientClassOrFunctionDeclaration(symbol) {
        var declarations = symbol.declarations;
        for (var _i = 0, declarations_5 = declarations; _i < declarations_5.length; _i++) {
            var declaration = declarations_5[_i];
            if ((declaration.kind === 226 ||
                (declaration.kind === 225 && ts.nodeIsPresent(declaration.body))) &&
                !ts.isInAmbientContext(declaration)) {
                return declaration;
            }
        }
        return undefined;
    }
    function inSameLexicalScope(node1, node2) {
        var container1 = ts.getEnclosingBlockScopeContainer(node1);
        var container2 = ts.getEnclosingBlockScopeContainer(node2);
        if (isGlobalSourceFile(container1)) {
            return isGlobalSourceFile(container2);
        }
        else if (isGlobalSourceFile(container2)) {
            return false;
        }
        else {
            return container1 === container2;
        }
    }
    function checkModuleDeclaration(node) {
        if (produceDiagnostics) {
            var isGlobalAugmentation = ts.isGlobalScopeAugmentation(node);
            var inAmbientContext = ts.isInAmbientContext(node);
            if (isGlobalAugmentation && !inAmbientContext) {
                error(node.name, ts.Diagnostics.Augmentations_for_the_global_scope_should_have_declare_modifier_unless_they_appear_in_already_ambient_context);
            }
            var isAmbientExternalModule = ts.isAmbientModule(node);
            var contextErrorMessage = isAmbientExternalModule
                ? ts.Diagnostics.An_ambient_module_declaration_is_only_allowed_at_the_top_level_in_a_file
                : ts.Diagnostics.A_namespace_declaration_is_only_allowed_in_a_namespace_or_module;
            if (checkGrammarModuleElementContext(node, contextErrorMessage)) {
                return;
            }
            if (!checkGrammarDecorators(node) && !checkGrammarModifiers(node)) {
                if (!inAmbientContext && node.name.kind === 9) {
                    grammarErrorOnNode(node.name, ts.Diagnostics.Only_ambient_modules_can_use_quoted_names);
                }
            }
            if (ts.isIdentifier(node.name)) {
                checkCollisionWithCapturedThisVariable(node, node.name);
                checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
                checkCollisionWithGlobalPromiseInGeneratedCode(node, node.name);
            }
            checkExportsOnMergedDeclarations(node);
            var symbol = getSymbolOfNode(node);
            if (symbol.flags & 512
                && symbol.declarations.length > 1
                && !inAmbientContext
                && ts.isInstantiatedModule(node, compilerOptions.preserveConstEnums || compilerOptions.isolatedModules)) {
                var firstNonAmbientClassOrFunc = getFirstNonAmbientClassOrFunctionDeclaration(symbol);
                if (firstNonAmbientClassOrFunc) {
                    if (ts.getSourceFileOfNode(node) !== ts.getSourceFileOfNode(firstNonAmbientClassOrFunc)) {
                        error(node.name, ts.Diagnostics.A_namespace_declaration_cannot_be_in_a_different_file_from_a_class_or_function_with_which_it_is_merged);
                    }
                    else if (node.pos < firstNonAmbientClassOrFunc.pos) {
                        error(node.name, ts.Diagnostics.A_namespace_declaration_cannot_be_located_prior_to_a_class_or_function_with_which_it_is_merged);
                    }
                }
                var mergedClass = ts.getDeclarationOfKind(symbol, 226);
                if (mergedClass &&
                    inSameLexicalScope(node, mergedClass)) {
                    getNodeLinks(node).flags |= 32768;
                }
            }
            if (isAmbientExternalModule) {
                if (ts.isExternalModuleAugmentation(node)) {
                    var checkBody = isGlobalAugmentation || (getSymbolOfNode(node).flags & 33554432);
                    if (checkBody && node.body) {
                        for (var _i = 0, _a = node.body.statements; _i < _a.length; _i++) {
                            var statement = _a[_i];
                            checkModuleAugmentationElement(statement, isGlobalAugmentation);
                        }
                    }
                }
                else if (isGlobalSourceFile(node.parent)) {
                    if (isGlobalAugmentation) {
                        error(node.name, ts.Diagnostics.Augmentations_for_the_global_scope_can_only_be_directly_nested_in_external_modules_or_ambient_module_declarations);
                    }
                    else if (ts.isExternalModuleNameRelative(node.name.text)) {
                        error(node.name, ts.Diagnostics.Ambient_module_declaration_cannot_specify_relative_module_name);
                    }
                }
                else {
                    if (isGlobalAugmentation) {
                        error(node.name, ts.Diagnostics.Augmentations_for_the_global_scope_can_only_be_directly_nested_in_external_modules_or_ambient_module_declarations);
                    }
                    else {
                        error(node.name, ts.Diagnostics.Ambient_modules_cannot_be_nested_in_other_modules_or_namespaces);
                    }
                }
            }
        }
        if (node.body) {
            checkSourceElement(node.body);
            if (!ts.isGlobalScopeAugmentation(node)) {
                registerForUnusedIdentifiersCheck(node);
            }
        }
    }
    function checkModuleAugmentationElement(node, isGlobalAugmentation) {
        switch (node.kind) {
            case 205:
                for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
                    var decl = _a[_i];
                    checkModuleAugmentationElement(decl, isGlobalAugmentation);
                }
                break;
            case 240:
            case 241:
                grammarErrorOnFirstToken(node, ts.Diagnostics.Exports_and_export_assignments_are_not_permitted_in_module_augmentations);
                break;
            case 234:
            case 235:
                grammarErrorOnFirstToken(node, ts.Diagnostics.Imports_are_not_permitted_in_module_augmentations_Consider_moving_them_to_the_enclosing_external_module);
                break;
            case 174:
            case 223:
                var name_25 = node.name;
                if (ts.isBindingPattern(name_25)) {
                    for (var _b = 0, _c = name_25.elements; _b < _c.length; _b++) {
                        var el = _c[_b];
                        checkModuleAugmentationElement(el, isGlobalAugmentation);
                    }
                    break;
                }
            case 226:
            case 229:
            case 225:
            case 227:
            case 230:
            case 228:
                if (isGlobalAugmentation) {
                    return;
                }
                var symbol = getSymbolOfNode(node);
                if (symbol) {
                    var reportError = !(symbol.flags & 33554432);
                    if (!reportError) {
                        reportError = ts.isExternalModuleAugmentation(symbol.parent.declarations[0]);
                    }
                }
                break;
        }
    }
    function getFirstIdentifier(node) {
        switch (node.kind) {
            case 70:
                return node;
            case 141:
                do {
                    node = node.left;
                } while (node.kind !== 70);
                return node;
            case 177:
                do {
                    node = node.expression;
                } while (node.kind !== 70);
                return node;
        }
    }
    function checkExternalImportOrExportDeclaration(node) {
        var moduleName = ts.getExternalModuleName(node);
        if (!ts.nodeIsMissing(moduleName) && moduleName.kind !== 9) {
            error(moduleName, ts.Diagnostics.String_literal_expected);
            return false;
        }
        var inAmbientExternalModule = node.parent.kind === 231 && ts.isAmbientModule(node.parent.parent);
        if (node.parent.kind !== 261 && !inAmbientExternalModule) {
            error(moduleName, node.kind === 241 ?
                ts.Diagnostics.Export_declarations_are_not_permitted_in_a_namespace :
                ts.Diagnostics.Import_declarations_in_a_namespace_cannot_reference_a_module);
            return false;
        }
        if (inAmbientExternalModule && ts.isExternalModuleNameRelative(moduleName.text)) {
            if (!isTopLevelInExternalModuleAugmentation(node)) {
                error(node, ts.Diagnostics.Import_or_export_declaration_in_an_ambient_module_declaration_cannot_reference_module_through_relative_module_name);
                return false;
            }
        }
        return true;
    }
    function checkAliasSymbol(node) {
        var symbol = getSymbolOfNode(node);
        var target = resolveAlias(symbol);
        if (target !== unknownSymbol) {
            var excludedMeanings = (symbol.flags & (107455 | 1048576) ? 107455 : 0) |
                (symbol.flags & 793064 ? 793064 : 0) |
                (symbol.flags & 1920 ? 1920 : 0);
            if (target.flags & excludedMeanings) {
                var message = node.kind === 243 ?
                    ts.Diagnostics.Export_declaration_conflicts_with_exported_declaration_of_0 :
                    ts.Diagnostics.Import_declaration_conflicts_with_local_declaration_of_0;
                error(node, message, symbolToString(symbol));
            }
        }
    }
    function checkImportBinding(node) {
        checkCollisionWithCapturedThisVariable(node, node.name);
        checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
        checkCollisionWithGlobalPromiseInGeneratedCode(node, node.name);
        checkAliasSymbol(node);
    }
    function checkImportDeclaration(node) {
        if (checkGrammarModuleElementContext(node, ts.Diagnostics.An_import_declaration_can_only_be_used_in_a_namespace_or_module)) {
            return;
        }
        if (!checkGrammarDecorators(node) && !checkGrammarModifiers(node) && ts.getModifierFlags(node) !== 0) {
            grammarErrorOnFirstToken(node, ts.Diagnostics.An_import_declaration_cannot_have_modifiers);
        }
        if (checkExternalImportOrExportDeclaration(node)) {
            var importClause = node.importClause;
            if (importClause) {
                if (importClause.name) {
                    checkImportBinding(importClause);
                }
                if (importClause.namedBindings) {
                    if (importClause.namedBindings.kind === 237) {
                        checkImportBinding(importClause.namedBindings);
                    }
                    else {
                        ts.forEach(importClause.namedBindings.elements, checkImportBinding);
                    }
                }
            }
        }
    }
    function checkImportEqualsDeclaration(node) {
        if (checkGrammarModuleElementContext(node, ts.Diagnostics.An_import_declaration_can_only_be_used_in_a_namespace_or_module)) {
            return;
        }
        checkGrammarDecorators(node) || checkGrammarModifiers(node);
        if (ts.isInternalModuleImportEqualsDeclaration(node) || checkExternalImportOrExportDeclaration(node)) {
            checkImportBinding(node);
            if (ts.getModifierFlags(node) & 1) {
                markExportAsReferenced(node);
            }
            if (ts.isInternalModuleImportEqualsDeclaration(node)) {
                var target = resolveAlias(getSymbolOfNode(node));
                if (target !== unknownSymbol) {
                    if (target.flags & 107455) {
                        var moduleName = getFirstIdentifier(node.moduleReference);
                        if (!(resolveEntityName(moduleName, 107455 | 1920).flags & 1920)) {
                            error(moduleName, ts.Diagnostics.Module_0_is_hidden_by_a_local_declaration_with_the_same_name, ts.declarationNameToString(moduleName));
                        }
                    }
                    if (target.flags & 793064) {
                        checkTypeNameIsReserved(node.name, ts.Diagnostics.Import_name_cannot_be_0);
                    }
                }
            }
            else {
                if (modulekind === ts.ModuleKind.ES2015 && !ts.isInAmbientContext(node)) {
                    grammarErrorOnNode(node, ts.Diagnostics.Import_assignment_cannot_be_used_when_targeting_ECMAScript_2015_modules_Consider_using_import_Asterisk_as_ns_from_mod_import_a_from_mod_import_d_from_mod_or_another_module_format_instead);
                }
            }
        }
    }
    function checkExportDeclaration(node) {
        if (checkGrammarModuleElementContext(node, ts.Diagnostics.An_export_declaration_can_only_be_used_in_a_module)) {
            return;
        }
        if (!checkGrammarDecorators(node) && !checkGrammarModifiers(node) && ts.getModifierFlags(node) !== 0) {
            grammarErrorOnFirstToken(node, ts.Diagnostics.An_export_declaration_cannot_have_modifiers);
        }
        if (!node.moduleSpecifier || checkExternalImportOrExportDeclaration(node)) {
            if (node.exportClause) {
                ts.forEach(node.exportClause.elements, checkExportSpecifier);
                var inAmbientExternalModule = node.parent.kind === 231 && ts.isAmbientModule(node.parent.parent);
                if (node.parent.kind !== 261 && !inAmbientExternalModule) {
                    error(node, ts.Diagnostics.Export_declarations_are_not_permitted_in_a_namespace);
                }
            }
            else {
                var moduleSymbol = resolveExternalModuleName(node, node.moduleSpecifier);
                if (moduleSymbol && hasExportAssignmentSymbol(moduleSymbol)) {
                    error(node.moduleSpecifier, ts.Diagnostics.Module_0_uses_export_and_cannot_be_used_with_export_Asterisk, symbolToString(moduleSymbol));
                }
            }
        }
    }
    function checkGrammarModuleElementContext(node, errorMessage) {
        var isInAppropriateContext = node.parent.kind === 261 || node.parent.kind === 231 || node.parent.kind === 230;
        if (!isInAppropriateContext) {
            grammarErrorOnFirstToken(node, errorMessage);
        }
        return !isInAppropriateContext;
    }
    function checkExportSpecifier(node) {
        checkAliasSymbol(node);
        if (!node.parent.parent.moduleSpecifier) {
            var exportedName = node.propertyName || node.name;
            var symbol = resolveName(exportedName, exportedName.text, 107455 | 793064 | 1920 | 8388608, undefined, undefined);
            if (symbol && (symbol === undefinedSymbol || isGlobalSourceFile(getDeclarationContainer(symbol.declarations[0])))) {
                error(exportedName, ts.Diagnostics.Cannot_export_0_Only_local_declarations_can_be_exported_from_a_module, exportedName.text);
            }
            else {
                markExportAsReferenced(node);
            }
        }
    }
    function checkExportAssignment(node) {
        if (checkGrammarModuleElementContext(node, ts.Diagnostics.An_export_assignment_can_only_be_used_in_a_module)) {
            return;
        }
        var container = node.parent.kind === 261 ? node.parent : node.parent.parent;
        if (container.kind === 230 && !ts.isAmbientModule(container)) {
            error(node, ts.Diagnostics.An_export_assignment_cannot_be_used_in_a_namespace);
            return;
        }
        if (!checkGrammarDecorators(node) && !checkGrammarModifiers(node) && ts.getModifierFlags(node) !== 0) {
            grammarErrorOnFirstToken(node, ts.Diagnostics.An_export_assignment_cannot_have_modifiers);
        }
        if (node.expression.kind === 70) {
            markExportAsReferenced(node);
        }
        else {
            checkExpressionCached(node.expression);
        }
        checkExternalModuleExports(container);
        if (node.isExportEquals && !ts.isInAmbientContext(node)) {
            if (modulekind === ts.ModuleKind.ES2015) {
                grammarErrorOnNode(node, ts.Diagnostics.Export_assignment_cannot_be_used_when_targeting_ECMAScript_2015_modules_Consider_using_export_default_or_another_module_format_instead);
            }
            else if (modulekind === ts.ModuleKind.System) {
                grammarErrorOnNode(node, ts.Diagnostics.Export_assignment_is_not_supported_when_module_flag_is_system);
            }
        }
    }
    function hasExportedMembers(moduleSymbol) {
        for (var id in moduleSymbol.exports) {
            if (id !== "export=") {
                return true;
            }
        }
        return false;
    }
    function checkExternalModuleExports(node) {
        var moduleSymbol = getSymbolOfNode(node);
        var links = getSymbolLinks(moduleSymbol);
        if (!links.exportsChecked) {
            var exportEqualsSymbol = moduleSymbol.exports["export="];
            if (exportEqualsSymbol && hasExportedMembers(moduleSymbol)) {
                var declaration = getDeclarationOfAliasSymbol(exportEqualsSymbol) || exportEqualsSymbol.valueDeclaration;
                if (!isTopLevelInExternalModuleAugmentation(declaration)) {
                    error(declaration, ts.Diagnostics.An_export_assignment_cannot_be_used_in_a_module_with_other_exported_elements);
                }
            }
            var exports = getExportsOfModule(moduleSymbol);
            for (var id in exports) {
                if (id === "__export") {
                    continue;
                }
                var _a = exports[id], declarations = _a.declarations, flags = _a.flags;
                if (flags & (1920 | 64 | 384)) {
                    continue;
                }
                var exportedDeclarationsCount = ts.countWhere(declarations, isNotOverload);
                if (flags & 524288 && exportedDeclarationsCount <= 2) {
                    continue;
                }
                if (exportedDeclarationsCount > 1) {
                    for (var _i = 0, declarations_6 = declarations; _i < declarations_6.length; _i++) {
                        var declaration = declarations_6[_i];
                        if (isNotOverload(declaration)) {
                            diagnostics.add(ts.createDiagnosticForNode(declaration, ts.Diagnostics.Cannot_redeclare_exported_variable_0, id));
                        }
                    }
                }
            }
            links.exportsChecked = true;
        }
        function isNotOverload(declaration) {
            return (declaration.kind !== 225 && declaration.kind !== 149) ||
                !!declaration.body;
        }
    }
    function checkSourceElement(node) {
        if (!node) {
            return;
        }
        var kind = node.kind;
        if (cancellationToken) {
            switch (kind) {
                case 230:
                case 226:
                case 227:
                case 225:
                    cancellationToken.throwIfCancellationRequested();
            }
        }
        switch (kind) {
            case 143:
                return checkTypeParameter(node);
            case 144:
                return checkParameter(node);
            case 147:
            case 146:
                return checkPropertyDeclaration(node);
            case 158:
            case 159:
            case 153:
            case 154:
                return checkSignatureDeclaration(node);
            case 155:
                return checkSignatureDeclaration(node);
            case 149:
            case 148:
                return checkMethodDeclaration(node);
            case 150:
                return checkConstructorDeclaration(node);
            case 151:
            case 152:
                return checkAccessorDeclaration(node);
            case 157:
                return checkTypeReferenceNode(node);
            case 156:
                return checkTypePredicate(node);
            case 160:
                return checkTypeQuery(node);
            case 161:
                return checkTypeLiteral(node);
            case 162:
                return checkArrayType(node);
            case 163:
                return checkTupleType(node);
            case 164:
            case 165:
                return checkUnionOrIntersectionType(node);
            case 166:
            case 168:
                return checkSourceElement(node.type);
            case 169:
                return checkIndexedAccessType(node);
            case 170:
                return checkMappedType(node);
            case 225:
                return checkFunctionDeclaration(node);
            case 204:
            case 231:
                return checkBlock(node);
            case 205:
                return checkVariableStatement(node);
            case 207:
                return checkExpressionStatement(node);
            case 208:
                return checkIfStatement(node);
            case 209:
                return checkDoStatement(node);
            case 210:
                return checkWhileStatement(node);
            case 211:
                return checkForStatement(node);
            case 212:
                return checkForInStatement(node);
            case 213:
                return checkForOfStatement(node);
            case 214:
            case 215:
                return checkBreakOrContinueStatement(node);
            case 216:
                return checkReturnStatement(node);
            case 217:
                return checkWithStatement(node);
            case 218:
                return checkSwitchStatement(node);
            case 219:
                return checkLabeledStatement(node);
            case 220:
                return checkThrowStatement(node);
            case 221:
                return checkTryStatement(node);
            case 223:
                return checkVariableDeclaration(node);
            case 174:
                return checkBindingElement(node);
            case 226:
                return checkClassDeclaration(node);
            case 227:
                return checkInterfaceDeclaration(node);
            case 228:
                return checkTypeAliasDeclaration(node);
            case 229:
                return checkEnumDeclaration(node);
            case 230:
                return checkModuleDeclaration(node);
            case 235:
                return checkImportDeclaration(node);
            case 234:
                return checkImportEqualsDeclaration(node);
            case 241:
                return checkExportDeclaration(node);
            case 240:
                return checkExportAssignment(node);
            case 206:
                checkGrammarStatementInAmbientContext(node);
                return;
            case 222:
                checkGrammarStatementInAmbientContext(node);
                return;
            case 244:
                return checkMissingDeclaration(node);
        }
    }
    function checkNodeDeferred(node) {
        if (deferredNodes) {
            deferredNodes.push(node);
        }
    }
    function checkDeferredNodes() {
        for (var _i = 0, deferredNodes_1 = deferredNodes; _i < deferredNodes_1.length; _i++) {
            var node = deferredNodes_1[_i];
            switch (node.kind) {
                case 184:
                case 185:
                case 149:
                case 148:
                    checkFunctionExpressionOrObjectLiteralMethodDeferred(node);
                    break;
                case 151:
                case 152:
                    checkAccessorDeferred(node);
                    break;
                case 197:
                    checkClassExpressionDeferred(node);
                    break;
            }
        }
    }
    function checkSourceFile(node) {
        ts.performance.mark("beforeCheck");
        checkSourceFileWorker(node);
        ts.performance.mark("afterCheck");
        ts.performance.measure("Check", "beforeCheck", "afterCheck");
    }
    function checkSourceFileWorker(node) {
        var links = getNodeLinks(node);
        if (!(links.flags & 1)) {
            if (compilerOptions.skipLibCheck && node.isDeclarationFile || compilerOptions.skipDefaultLibCheck && node.hasNoDefaultLib) {
                return;
            }
            checkGrammarSourceFile(node);
            potentialThisCollisions.length = 0;
            deferredNodes = [];
            deferredUnusedIdentifierNodes = produceDiagnostics && noUnusedIdentifiers ? [] : undefined;
            ts.forEach(node.statements, checkSourceElement);
            checkDeferredNodes();
            if (ts.isExternalModule(node)) {
                registerForUnusedIdentifiersCheck(node);
            }
            if (!node.isDeclarationFile) {
                checkUnusedIdentifiers();
            }
            deferredNodes = undefined;
            deferredUnusedIdentifierNodes = undefined;
            if (ts.isExternalOrCommonJsModule(node)) {
                checkExternalModuleExports(node);
            }
            if (potentialThisCollisions.length) {
                ts.forEach(potentialThisCollisions, checkIfThisIsCapturedInEnclosingScope);
                potentialThisCollisions.length = 0;
            }
            links.flags |= 1;
        }
    }
    function getDiagnostics(sourceFile, ct) {
        try {
            cancellationToken = ct;
            return getDiagnosticsWorker(sourceFile);
        }
        finally {
            cancellationToken = undefined;
        }
    }
    function getDiagnosticsWorker(sourceFile) {
        throwIfNonDiagnosticsProducing();
        if (sourceFile) {
            var previousGlobalDiagnostics = diagnostics.getGlobalDiagnostics();
            var previousGlobalDiagnosticsSize = previousGlobalDiagnostics.length;
            checkSourceFile(sourceFile);
            var semanticDiagnostics = diagnostics.getDiagnostics(sourceFile.fileName);
            var currentGlobalDiagnostics = diagnostics.getGlobalDiagnostics();
            if (currentGlobalDiagnostics !== previousGlobalDiagnostics) {
                var deferredGlobalDiagnostics = ts.relativeComplement(previousGlobalDiagnostics, currentGlobalDiagnostics, ts.compareDiagnostics);
                return ts.concatenate(deferredGlobalDiagnostics, semanticDiagnostics);
            }
            else if (previousGlobalDiagnosticsSize === 0 && currentGlobalDiagnostics.length > 0) {
                return ts.concatenate(currentGlobalDiagnostics, semanticDiagnostics);
            }
            return semanticDiagnostics;
        }
        ts.forEach(host.getSourceFiles(), checkSourceFile);
        return diagnostics.getDiagnostics();
    }
    function getGlobalDiagnostics() {
        throwIfNonDiagnosticsProducing();
        return diagnostics.getGlobalDiagnostics();
    }
    function throwIfNonDiagnosticsProducing() {
        if (!produceDiagnostics) {
            throw new Error("Trying to get diagnostics from a type checker that does not produce them.");
        }
    }
    function isInsideWithStatementBody(node) {
        if (node) {
            while (node.parent) {
                if (node.parent.kind === 217 && node.parent.statement === node) {
                    return true;
                }
                node = node.parent;
            }
        }
        return false;
    }
    function getSymbolsInScope(location, meaning) {
        var symbols = ts.createMap();
        var memberFlags = 0;
        if (isInsideWithStatementBody(location)) {
            return [];
        }
        populateSymbols();
        return symbolsToArray(symbols);
        function populateSymbols() {
            while (location) {
                if (location.locals && !isGlobalSourceFile(location)) {
                    copySymbols(location.locals, meaning);
                }
                switch (location.kind) {
                    case 261:
                        if (!ts.isExternalOrCommonJsModule(location)) {
                            break;
                        }
                    case 230:
                        copySymbols(getSymbolOfNode(location).exports, meaning & 8914931);
                        break;
                    case 229:
                        copySymbols(getSymbolOfNode(location).exports, meaning & 8);
                        break;
                    case 197:
                        var className = location.name;
                        if (className) {
                            copySymbol(location.symbol, meaning);
                        }
                    case 226:
                    case 227:
                        if (!(memberFlags & 32)) {
                            copySymbols(getSymbolOfNode(location).members, meaning & 793064);
                        }
                        break;
                    case 184:
                        var funcName = location.name;
                        if (funcName) {
                            copySymbol(location.symbol, meaning);
                        }
                        break;
                }
                if (ts.introducesArgumentsExoticObject(location)) {
                    copySymbol(argumentsSymbol, meaning);
                }
                memberFlags = ts.getModifierFlags(location);
                location = location.parent;
            }
            copySymbols(globals, meaning);
        }
        function copySymbol(symbol, meaning) {
            if (symbol.flags & meaning) {
                var id = symbol.name;
                if (!symbols[id]) {
                    symbols[id] = symbol;
                }
            }
        }
        function copySymbols(source, meaning) {
            if (meaning) {
                for (var id in source) {
                    var symbol = source[id];
                    copySymbol(symbol, meaning);
                }
            }
        }
    }
    function isTypeDeclarationName(name) {
        return name.kind === 70 &&
            isTypeDeclaration(name.parent) &&
            name.parent.name === name;
    }
    function isTypeDeclaration(node) {
        switch (node.kind) {
            case 143:
            case 226:
            case 227:
            case 228:
            case 229:
                return true;
        }
    }
    function isTypeReferenceIdentifier(entityName) {
        var node = entityName;
        while (node.parent && node.parent.kind === 141) {
            node = node.parent;
        }
        return node.parent && (node.parent.kind === 157 || node.parent.kind === 272);
    }
    function isHeritageClauseElementIdentifier(entityName) {
        var node = entityName;
        while (node.parent && node.parent.kind === 177) {
            node = node.parent;
        }
        return node.parent && node.parent.kind === 199;
    }
    function forEachEnclosingClass(node, callback) {
        var result;
        while (true) {
            node = ts.getContainingClass(node);
            if (!node)
                break;
            if (result = callback(node))
                break;
        }
        return result;
    }
    function isNodeWithinClass(node, classDeclaration) {
        return !!forEachEnclosingClass(node, function (n) { return n === classDeclaration; });
    }
    function getLeftSideOfImportEqualsOrExportAssignment(nodeOnRightSide) {
        while (nodeOnRightSide.parent.kind === 141) {
            nodeOnRightSide = nodeOnRightSide.parent;
        }
        if (nodeOnRightSide.parent.kind === 234) {
            return nodeOnRightSide.parent.moduleReference === nodeOnRightSide && nodeOnRightSide.parent;
        }
        if (nodeOnRightSide.parent.kind === 240) {
            return nodeOnRightSide.parent.expression === nodeOnRightSide && nodeOnRightSide.parent;
        }
        return undefined;
    }
    function isInRightSideOfImportOrExportAssignment(node) {
        return getLeftSideOfImportEqualsOrExportAssignment(node) !== undefined;
    }
    function getSymbolOfEntityNameOrPropertyAccessExpression(entityName) {
        if (ts.isDeclarationName(entityName)) {
            return getSymbolOfNode(entityName.parent);
        }
        if (ts.isInJavaScriptFile(entityName) && entityName.parent.kind === 177) {
            var specialPropertyAssignmentKind = ts.getSpecialPropertyAssignmentKind(entityName.parent.parent);
            switch (specialPropertyAssignmentKind) {
                case 1:
                case 3:
                    return getSymbolOfNode(entityName.parent);
                case 4:
                case 2:
                    return getSymbolOfNode(entityName.parent.parent);
                default:
            }
        }
        if (entityName.parent.kind === 240 && ts.isEntityNameExpression(entityName)) {
            return resolveEntityName(entityName, 107455 | 793064 | 1920 | 8388608);
        }
        if (entityName.kind !== 177 && isInRightSideOfImportOrExportAssignment(entityName)) {
            var importEqualsDeclaration = ts.getAncestor(entityName, 234);
            ts.Debug.assert(importEqualsDeclaration !== undefined);
            return getSymbolOfPartOfRightHandSideOfImportEquals(entityName, true);
        }
        if (ts.isRightSideOfQualifiedNameOrPropertyAccess(entityName)) {
            entityName = entityName.parent;
        }
        if (isHeritageClauseElementIdentifier(entityName)) {
            var meaning = 0;
            if (entityName.parent.kind === 199) {
                meaning = 793064;
                if (ts.isExpressionWithTypeArgumentsInClassExtendsClause(entityName.parent)) {
                    meaning |= 107455;
                }
            }
            else {
                meaning = 1920;
            }
            meaning |= 8388608;
            return resolveEntityName(entityName, meaning);
        }
        else if (ts.isPartOfExpression(entityName)) {
            if (ts.nodeIsMissing(entityName)) {
                return undefined;
            }
            if (entityName.kind === 70) {
                if (ts.isJSXTagName(entityName) && isJsxIntrinsicIdentifier(entityName)) {
                    return getIntrinsicTagSymbol(entityName.parent);
                }
                return resolveEntityName(entityName, 107455, false, true);
            }
            else if (entityName.kind === 177) {
                var symbol = getNodeLinks(entityName).resolvedSymbol;
                if (!symbol) {
                    checkPropertyAccessExpression(entityName);
                }
                return getNodeLinks(entityName).resolvedSymbol;
            }
            else if (entityName.kind === 141) {
                var symbol = getNodeLinks(entityName).resolvedSymbol;
                if (!symbol) {
                    checkQualifiedName(entityName);
                }
                return getNodeLinks(entityName).resolvedSymbol;
            }
        }
        else if (isTypeReferenceIdentifier(entityName)) {
            var meaning = (entityName.parent.kind === 157 || entityName.parent.kind === 272) ? 793064 : 1920;
            return resolveEntityName(entityName, meaning, false, true);
        }
        else if (entityName.parent.kind === 250) {
            return getJsxAttributePropertySymbol(entityName.parent);
        }
        if (entityName.parent.kind === 156) {
            return resolveEntityName(entityName, 1);
        }
        return undefined;
    }
    function getSymbolAtLocation(node) {
        if (node.kind === 261) {
            return ts.isExternalModule(node) ? getMergedSymbol(node.symbol) : undefined;
        }
        if (isInsideWithStatementBody(node)) {
            return undefined;
        }
        if (ts.isDeclarationName(node)) {
            return getSymbolOfNode(node.parent);
        }
        else if (ts.isLiteralComputedPropertyDeclarationName(node)) {
            return getSymbolOfNode(node.parent.parent);
        }
        if (node.kind === 70) {
            if (isInRightSideOfImportOrExportAssignment(node)) {
                return getSymbolOfEntityNameOrPropertyAccessExpression(node);
            }
            else if (node.parent.kind === 174 &&
                node.parent.parent.kind === 172 &&
                node === node.parent.propertyName) {
                var typeOfPattern = getTypeOfNode(node.parent.parent);
                var propertyDeclaration = typeOfPattern && getPropertyOfType(typeOfPattern, node.text);
                if (propertyDeclaration) {
                    return propertyDeclaration;
                }
            }
        }
        switch (node.kind) {
            case 70:
            case 177:
            case 141:
                return getSymbolOfEntityNameOrPropertyAccessExpression(node);
            case 98:
                var container = ts.getThisContainer(node, false);
                if (ts.isFunctionLike(container)) {
                    var sig = getSignatureFromDeclaration(container);
                    if (sig.thisParameter) {
                        return sig.thisParameter;
                    }
                }
            case 96:
                var type = ts.isPartOfExpression(node) ? getTypeOfExpression(node) : getTypeFromTypeNode(node);
                return type.symbol;
            case 167:
                return getTypeFromTypeNode(node).symbol;
            case 122:
                var constructorDeclaration = node.parent;
                if (constructorDeclaration && constructorDeclaration.kind === 150) {
                    return constructorDeclaration.parent.symbol;
                }
                return undefined;
            case 9:
                if ((ts.isExternalModuleImportEqualsDeclaration(node.parent.parent) &&
                    ts.getExternalModuleImportEqualsDeclarationExpression(node.parent.parent) === node) ||
                    ((node.parent.kind === 235 || node.parent.kind === 241) &&
                        node.parent.moduleSpecifier === node)) {
                    return resolveExternalModuleName(node, node);
                }
                if (ts.isInJavaScriptFile(node) && ts.isRequireCall(node.parent, false)) {
                    return resolveExternalModuleName(node, node);
                }
            case 8:
                if (node.parent.kind === 178 && node.parent.argumentExpression === node) {
                    var objectType = getTypeOfExpression(node.parent.expression);
                    if (objectType === unknownType)
                        return undefined;
                    var apparentType = getApparentType(objectType);
                    if (apparentType === unknownType)
                        return undefined;
                    return getPropertyOfType(apparentType, node.text);
                }
                break;
        }
        return undefined;
    }
    function getShorthandAssignmentValueSymbol(location) {
        if (location && location.kind === 258) {
            return resolveEntityName(location.name, 107455 | 8388608);
        }
        return undefined;
    }
    function getExportSpecifierLocalTargetSymbol(node) {
        return node.parent.parent.moduleSpecifier ?
            getExternalModuleMember(node.parent.parent, node) :
            resolveEntityName(node.propertyName || node.name, 107455 | 793064 | 1920 | 8388608);
    }
    function getTypeOfNode(node) {
        if (isInsideWithStatementBody(node)) {
            return unknownType;
        }
        if (ts.isPartOfTypeNode(node)) {
            return getTypeFromTypeNode(node);
        }
        if (ts.isPartOfExpression(node)) {
            return getRegularTypeOfExpression(node);
        }
        if (ts.isExpressionWithTypeArgumentsInClassExtendsClause(node)) {
            return getBaseTypes(getDeclaredTypeOfSymbol(getSymbolOfNode(node.parent.parent)))[0];
        }
        if (isTypeDeclaration(node)) {
            var symbol = getSymbolOfNode(node);
            return getDeclaredTypeOfSymbol(symbol);
        }
        if (isTypeDeclarationName(node)) {
            var symbol = getSymbolAtLocation(node);
            return symbol && getDeclaredTypeOfSymbol(symbol);
        }
        if (ts.isDeclaration(node)) {
            var symbol = getSymbolOfNode(node);
            return getTypeOfSymbol(symbol);
        }
        if (ts.isDeclarationName(node)) {
            var symbol = getSymbolAtLocation(node);
            return symbol && getTypeOfSymbol(symbol);
        }
        if (ts.isBindingPattern(node)) {
            return getTypeForVariableLikeDeclaration(node.parent, true);
        }
        if (isInRightSideOfImportOrExportAssignment(node)) {
            var symbol = getSymbolAtLocation(node);
            var declaredType = symbol && getDeclaredTypeOfSymbol(symbol);
            return declaredType !== unknownType ? declaredType : getTypeOfSymbol(symbol);
        }
        return unknownType;
    }
    function getTypeOfArrayLiteralOrObjectLiteralDestructuringAssignment(expr) {
        ts.Debug.assert(expr.kind === 176 || expr.kind === 175);
        if (expr.parent.kind === 213) {
            var iteratedType = checkRightHandSideOfForOf(expr.parent.expression);
            return checkDestructuringAssignment(expr, iteratedType || unknownType);
        }
        if (expr.parent.kind === 192) {
            var iteratedType = getTypeOfExpression(expr.parent.right);
            return checkDestructuringAssignment(expr, iteratedType || unknownType);
        }
        if (expr.parent.kind === 257) {
            var typeOfParentObjectLiteral = getTypeOfArrayLiteralOrObjectLiteralDestructuringAssignment(expr.parent.parent);
            return checkObjectLiteralDestructuringPropertyAssignment(typeOfParentObjectLiteral || unknownType, expr.parent);
        }
        ts.Debug.assert(expr.parent.kind === 175);
        var typeOfArrayLiteral = getTypeOfArrayLiteralOrObjectLiteralDestructuringAssignment(expr.parent);
        var elementType = checkIteratedTypeOrElementType(typeOfArrayLiteral || unknownType, expr.parent, false) || unknownType;
        return checkArrayLiteralDestructuringElementAssignment(expr.parent, typeOfArrayLiteral, ts.indexOf(expr.parent.elements, expr), elementType || unknownType);
    }
    function getPropertySymbolOfDestructuringAssignment(location) {
        var typeOfObjectLiteral = getTypeOfArrayLiteralOrObjectLiteralDestructuringAssignment(location.parent.parent);
        return typeOfObjectLiteral && getPropertyOfType(typeOfObjectLiteral, location.text);
    }
    function getRegularTypeOfExpression(expr) {
        if (ts.isRightSideOfQualifiedNameOrPropertyAccess(expr)) {
            expr = expr.parent;
        }
        return getRegularTypeOfLiteralType(getTypeOfExpression(expr));
    }
    function getParentTypeOfClassElement(node) {
        var classSymbol = getSymbolOfNode(node.parent);
        return ts.getModifierFlags(node) & 32
            ? getTypeOfSymbol(classSymbol)
            : getDeclaredTypeOfSymbol(classSymbol);
    }
    function getAugmentedPropertiesOfType(type) {
        type = getApparentType(type);
        var propsByName = createSymbolTable(getPropertiesOfType(type));
        if (getSignaturesOfType(type, 0).length || getSignaturesOfType(type, 1).length) {
            ts.forEach(getPropertiesOfType(globalFunctionType), function (p) {
                if (!propsByName[p.name]) {
                    propsByName[p.name] = p;
                }
            });
        }
        return getNamedMembers(propsByName);
    }
    function getRootSymbols(symbol) {
        if (symbol.flags & 268435456) {
            var symbols_3 = [];
            var name_26 = symbol.name;
            ts.forEach(getSymbolLinks(symbol).containingType.types, function (t) {
                var symbol = getPropertyOfType(t, name_26);
                if (symbol) {
                    symbols_3.push(symbol);
                }
            });
            return symbols_3;
        }
        else if (symbol.flags & 67108864) {
            if (symbol.leftSpread) {
                var links = symbol;
                return [links.leftSpread, links.rightSpread];
            }
            var target = void 0;
            var next = symbol;
            while (next = getSymbolLinks(next).target) {
                target = next;
            }
            if (target) {
                return [target];
            }
        }
        return [symbol];
    }
    function isArgumentsLocalBinding(node) {
        if (!ts.isGeneratedIdentifier(node)) {
            node = ts.getParseTreeNode(node, ts.isIdentifier);
            if (node) {
                return getReferencedValueSymbol(node) === argumentsSymbol;
            }
        }
        return false;
    }
    function moduleExportsSomeValue(moduleReferenceExpression) {
        var moduleSymbol = resolveExternalModuleName(moduleReferenceExpression.parent, moduleReferenceExpression);
        if (!moduleSymbol || ts.isShorthandAmbientModuleSymbol(moduleSymbol)) {
            return true;
        }
        var hasExportAssignment = hasExportAssignmentSymbol(moduleSymbol);
        moduleSymbol = resolveExternalModuleSymbol(moduleSymbol);
        var symbolLinks = getSymbolLinks(moduleSymbol);
        if (symbolLinks.exportsSomeValue === undefined) {
            symbolLinks.exportsSomeValue = hasExportAssignment
                ? !!(moduleSymbol.flags & 107455)
                : ts.forEachProperty(getExportsOfModule(moduleSymbol), isValue);
        }
        return symbolLinks.exportsSomeValue;
        function isValue(s) {
            s = resolveSymbol(s);
            return s && !!(s.flags & 107455);
        }
    }
    function isNameOfModuleOrEnumDeclaration(node) {
        var parent = node.parent;
        return parent && ts.isModuleOrEnumDeclaration(parent) && node === parent.name;
    }
    function getReferencedExportContainer(node, prefixLocals) {
        node = ts.getParseTreeNode(node, ts.isIdentifier);
        if (node) {
            var symbol = getReferencedValueSymbol(node, isNameOfModuleOrEnumDeclaration(node));
            if (symbol) {
                if (symbol.flags & 1048576) {
                    var exportSymbol = getMergedSymbol(symbol.exportSymbol);
                    if (!prefixLocals && exportSymbol.flags & 944) {
                        return undefined;
                    }
                    symbol = exportSymbol;
                }
                var parentSymbol = getParentOfSymbol(symbol);
                if (parentSymbol) {
                    if (parentSymbol.flags & 512 && parentSymbol.valueDeclaration.kind === 261) {
                        var symbolFile = parentSymbol.valueDeclaration;
                        var referenceFile = ts.getSourceFileOfNode(node);
                        var symbolIsUmdExport = symbolFile !== referenceFile;
                        return symbolIsUmdExport ? undefined : symbolFile;
                    }
                    for (var n = node.parent; n; n = n.parent) {
                        if (ts.isModuleOrEnumDeclaration(n) && getSymbolOfNode(n) === parentSymbol) {
                            return n;
                        }
                    }
                }
            }
        }
    }
    function getReferencedImportDeclaration(node) {
        node = ts.getParseTreeNode(node, ts.isIdentifier);
        if (node) {
            var symbol = getReferencedValueSymbol(node);
            if (symbol && symbol.flags & 8388608) {
                return getDeclarationOfAliasSymbol(symbol);
            }
        }
        return undefined;
    }
    function isSymbolOfDeclarationWithCollidingName(symbol) {
        if (symbol.flags & 418) {
            var links = getSymbolLinks(symbol);
            if (links.isDeclarationWithCollidingName === undefined) {
                var container = ts.getEnclosingBlockScopeContainer(symbol.valueDeclaration);
                if (ts.isStatementWithLocals(container)) {
                    var nodeLinks_1 = getNodeLinks(symbol.valueDeclaration);
                    if (!!resolveName(container.parent, symbol.name, 107455, undefined, undefined)) {
                        links.isDeclarationWithCollidingName = true;
                    }
                    else if (nodeLinks_1.flags & 131072) {
                        var isDeclaredInLoop = nodeLinks_1.flags & 262144;
                        var inLoopInitializer = ts.isIterationStatement(container, false);
                        var inLoopBodyBlock = container.kind === 204 && ts.isIterationStatement(container.parent, false);
                        links.isDeclarationWithCollidingName = !ts.isBlockScopedContainerTopLevel(container) && (!isDeclaredInLoop || (!inLoopInitializer && !inLoopBodyBlock));
                    }
                    else {
                        links.isDeclarationWithCollidingName = false;
                    }
                }
            }
            return links.isDeclarationWithCollidingName;
        }
        return false;
    }
    function getReferencedDeclarationWithCollidingName(node) {
        if (!ts.isGeneratedIdentifier(node)) {
            node = ts.getParseTreeNode(node, ts.isIdentifier);
            if (node) {
                var symbol = getReferencedValueSymbol(node);
                if (symbol && isSymbolOfDeclarationWithCollidingName(symbol)) {
                    return symbol.valueDeclaration;
                }
            }
        }
        return undefined;
    }
    function isDeclarationWithCollidingName(node) {
        node = ts.getParseTreeNode(node, ts.isDeclaration);
        if (node) {
            var symbol = getSymbolOfNode(node);
            if (symbol) {
                return isSymbolOfDeclarationWithCollidingName(symbol);
            }
        }
        return false;
    }
    function isValueAliasDeclaration(node) {
        node = ts.getParseTreeNode(node);
        if (node === undefined) {
            return true;
        }
        switch (node.kind) {
            case 234:
            case 236:
            case 237:
            case 239:
            case 243:
                return isAliasResolvedToValue(getSymbolOfNode(node) || unknownSymbol);
            case 241:
                var exportClause = node.exportClause;
                return exportClause && ts.forEach(exportClause.elements, isValueAliasDeclaration);
            case 240:
                return node.expression
                    && node.expression.kind === 70
                    ? isAliasResolvedToValue(getSymbolOfNode(node) || unknownSymbol)
                    : true;
        }
        return false;
    }
    function isTopLevelValueImportEqualsWithEntityName(node) {
        node = ts.getParseTreeNode(node, ts.isImportEqualsDeclaration);
        if (node === undefined || node.parent.kind !== 261 || !ts.isInternalModuleImportEqualsDeclaration(node)) {
            return false;
        }
        var isValue = isAliasResolvedToValue(getSymbolOfNode(node));
        return isValue && node.moduleReference && !ts.nodeIsMissing(node.moduleReference);
    }
    function isAliasResolvedToValue(symbol) {
        var target = resolveAlias(symbol);
        if (target === unknownSymbol) {
            return true;
        }
        return target.flags & 107455 &&
            (compilerOptions.preserveConstEnums || !isConstEnumOrConstEnumOnlyModule(target));
    }
    function isConstEnumOrConstEnumOnlyModule(s) {
        return isConstEnumSymbol(s) || s.constEnumOnlyModule;
    }
    function isReferencedAliasDeclaration(node, checkChildren) {
        node = ts.getParseTreeNode(node);
        if (node === undefined) {
            return true;
        }
        if (ts.isAliasSymbolDeclaration(node)) {
            var symbol = getSymbolOfNode(node);
            if (symbol && getSymbolLinks(symbol).referenced) {
                return true;
            }
        }
        if (checkChildren) {
            return ts.forEachChild(node, function (node) { return isReferencedAliasDeclaration(node, checkChildren); });
        }
        return false;
    }
    function isImplementationOfOverload(node) {
        if (ts.nodeIsPresent(node.body)) {
            var symbol = getSymbolOfNode(node);
            var signaturesOfSymbol = getSignaturesOfSymbol(symbol);
            return signaturesOfSymbol.length > 1 ||
                (signaturesOfSymbol.length === 1 && signaturesOfSymbol[0].declaration !== node);
        }
        return false;
    }
    function getNodeCheckFlags(node) {
        node = ts.getParseTreeNode(node);
        return node ? getNodeLinks(node).flags : undefined;
    }
    function getEnumMemberValue(node) {
        computeEnumMemberValues(node.parent);
        return getNodeLinks(node).enumMemberValue;
    }
    function getConstantValue(node) {
        if (node.kind === 260) {
            return getEnumMemberValue(node);
        }
        var symbol = getNodeLinks(node).resolvedSymbol;
        if (symbol && (symbol.flags & 8)) {
            if (ts.isConstEnumDeclaration(symbol.valueDeclaration.parent)) {
                return getEnumMemberValue(symbol.valueDeclaration);
            }
        }
        return undefined;
    }
    function isFunctionType(type) {
        return type.flags & 32768 && getSignaturesOfType(type, 0).length > 0;
    }
    function getTypeReferenceSerializationKind(typeName, location) {
        var valueSymbol = resolveEntityName(typeName, 107455, true, false, location);
        var globalPromiseSymbol = tryGetGlobalPromiseConstructorSymbol();
        if (globalPromiseSymbol && valueSymbol === globalPromiseSymbol) {
            return ts.TypeReferenceSerializationKind.Promise;
        }
        var constructorType = valueSymbol ? getTypeOfSymbol(valueSymbol) : undefined;
        if (constructorType && isConstructorType(constructorType)) {
            return ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue;
        }
        var typeSymbol = resolveEntityName(typeName, 793064, true, false, location);
        if (!typeSymbol) {
            return ts.TypeReferenceSerializationKind.ObjectType;
        }
        var type = getDeclaredTypeOfSymbol(typeSymbol);
        if (type === unknownType) {
            return ts.TypeReferenceSerializationKind.Unknown;
        }
        else if (type.flags & 1) {
            return ts.TypeReferenceSerializationKind.ObjectType;
        }
        else if (isTypeOfKind(type, 1024 | 6144 | 8192)) {
            return ts.TypeReferenceSerializationKind.VoidNullableOrNeverType;
        }
        else if (isTypeOfKind(type, 136)) {
            return ts.TypeReferenceSerializationKind.BooleanType;
        }
        else if (isTypeOfKind(type, 340)) {
            return ts.TypeReferenceSerializationKind.NumberLikeType;
        }
        else if (isTypeOfKind(type, 262178)) {
            return ts.TypeReferenceSerializationKind.StringLikeType;
        }
        else if (isTupleType(type)) {
            return ts.TypeReferenceSerializationKind.ArrayLikeType;
        }
        else if (isTypeOfKind(type, 512)) {
            return ts.TypeReferenceSerializationKind.ESSymbolType;
        }
        else if (isFunctionType(type)) {
            return ts.TypeReferenceSerializationKind.TypeWithCallSignature;
        }
        else if (isArrayType(type)) {
            return ts.TypeReferenceSerializationKind.ArrayLikeType;
        }
        else {
            return ts.TypeReferenceSerializationKind.ObjectType;
        }
    }
    function writeTypeOfDeclaration(declaration, enclosingDeclaration, flags, writer) {
        var symbol = getSymbolOfNode(declaration);
        var type = symbol && !(symbol.flags & (2048 | 131072))
            ? getWidenedLiteralType(getTypeOfSymbol(symbol))
            : unknownType;
        getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
    }
    function writeReturnTypeOfSignatureDeclaration(signatureDeclaration, enclosingDeclaration, flags, writer) {
        var signature = getSignatureFromDeclaration(signatureDeclaration);
        getSymbolDisplayBuilder().buildTypeDisplay(getReturnTypeOfSignature(signature), writer, enclosingDeclaration, flags);
    }
    function writeTypeOfExpression(expr, enclosingDeclaration, flags, writer) {
        var type = getWidenedType(getRegularTypeOfExpression(expr));
        getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
    }
    function writeBaseConstructorTypeOfClass(node, enclosingDeclaration, flags, writer) {
        var classType = getDeclaredTypeOfSymbol(getSymbolOfNode(node));
        resolveBaseTypesOfClass(classType);
        var baseType = classType.resolvedBaseTypes.length ? classType.resolvedBaseTypes[0] : unknownType;
        getSymbolDisplayBuilder().buildTypeDisplay(baseType, writer, enclosingDeclaration, flags);
    }
    function hasGlobalName(name) {
        return !!globals[name];
    }
    function getReferencedValueSymbol(reference, startInDeclarationContainer) {
        var resolvedSymbol = getNodeLinks(reference).resolvedSymbol;
        if (resolvedSymbol) {
            return resolvedSymbol;
        }
        var location = reference;
        if (startInDeclarationContainer) {
            var parent_12 = reference.parent;
            if (ts.isDeclaration(parent_12) && reference === parent_12.name) {
                location = getDeclarationContainer(parent_12);
            }
        }
        return resolveName(location, reference.text, 107455 | 1048576 | 8388608, undefined, undefined);
    }
    function getReferencedValueDeclaration(reference) {
        if (!ts.isGeneratedIdentifier(reference)) {
            reference = ts.getParseTreeNode(reference, ts.isIdentifier);
            if (reference) {
                var symbol = getReferencedValueSymbol(reference);
                if (symbol) {
                    return getExportSymbolOfValueSymbolIfExported(symbol).valueDeclaration;
                }
            }
        }
        return undefined;
    }
    function isLiteralConstDeclaration(node) {
        if (ts.isConst(node)) {
            var type = getTypeOfSymbol(getSymbolOfNode(node));
            return !!(type.flags & 96 && type.flags & 1048576);
        }
        return false;
    }
    function writeLiteralConstValue(node, writer) {
        var type = getTypeOfSymbol(getSymbolOfNode(node));
        writer.writeStringLiteral(literalTypeToString(type));
    }
    function createResolver() {
        var resolvedTypeReferenceDirectives = host.getResolvedTypeReferenceDirectives();
        var fileToDirective;
        if (resolvedTypeReferenceDirectives) {
            fileToDirective = ts.createFileMap();
            for (var key in resolvedTypeReferenceDirectives) {
                var resolvedDirective = resolvedTypeReferenceDirectives[key];
                if (!resolvedDirective) {
                    continue;
                }
                var file = host.getSourceFile(resolvedDirective.resolvedFileName);
                fileToDirective.set(file.path, key);
            }
        }
        return {
            getReferencedExportContainer: getReferencedExportContainer,
            getReferencedImportDeclaration: getReferencedImportDeclaration,
            getReferencedDeclarationWithCollidingName: getReferencedDeclarationWithCollidingName,
            isDeclarationWithCollidingName: isDeclarationWithCollidingName,
            isValueAliasDeclaration: isValueAliasDeclaration,
            hasGlobalName: hasGlobalName,
            isReferencedAliasDeclaration: isReferencedAliasDeclaration,
            getNodeCheckFlags: getNodeCheckFlags,
            isTopLevelValueImportEqualsWithEntityName: isTopLevelValueImportEqualsWithEntityName,
            isDeclarationVisible: isDeclarationVisible,
            isImplementationOfOverload: isImplementationOfOverload,
            writeTypeOfDeclaration: writeTypeOfDeclaration,
            writeReturnTypeOfSignatureDeclaration: writeReturnTypeOfSignatureDeclaration,
            writeTypeOfExpression: writeTypeOfExpression,
            writeBaseConstructorTypeOfClass: writeBaseConstructorTypeOfClass,
            isSymbolAccessible: isSymbolAccessible,
            isEntityNameVisible: isEntityNameVisible,
            getConstantValue: getConstantValue,
            collectLinkedAliases: collectLinkedAliases,
            getReferencedValueDeclaration: getReferencedValueDeclaration,
            getTypeReferenceSerializationKind: getTypeReferenceSerializationKind,
            isOptionalParameter: isOptionalParameter,
            moduleExportsSomeValue: moduleExportsSomeValue,
            isArgumentsLocalBinding: isArgumentsLocalBinding,
            getExternalModuleFileFromDeclaration: getExternalModuleFileFromDeclaration,
            getTypeReferenceDirectivesForEntityName: getTypeReferenceDirectivesForEntityName,
            getTypeReferenceDirectivesForSymbol: getTypeReferenceDirectivesForSymbol,
            isLiteralConstDeclaration: isLiteralConstDeclaration,
            writeLiteralConstValue: writeLiteralConstValue,
            getJsxFactoryEntity: function () { return _jsxFactoryEntity; }
        };
        function getTypeReferenceDirectivesForEntityName(node) {
            if (!fileToDirective) {
                return undefined;
            }
            var meaning = (node.kind === 177) || (node.kind === 70 && isInTypeQuery(node))
                ? 107455 | 1048576
                : 793064 | 1920;
            var symbol = resolveEntityName(node, meaning, true);
            return symbol && symbol !== unknownSymbol ? getTypeReferenceDirectivesForSymbol(symbol, meaning) : undefined;
        }
        function getTypeReferenceDirectivesForSymbol(symbol, meaning) {
            if (!fileToDirective) {
                return undefined;
            }
            if (!isSymbolFromTypeDeclarationFile(symbol)) {
                return undefined;
            }
            var typeReferenceDirectives;
            for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
                var decl = _a[_i];
                if (decl.symbol && decl.symbol.flags & meaning) {
                    var file = ts.getSourceFileOfNode(decl);
                    var typeReferenceDirective = fileToDirective.get(file.path);
                    if (typeReferenceDirective) {
                        (typeReferenceDirectives || (typeReferenceDirectives = [])).push(typeReferenceDirective);
                    }
                    else {
                        return undefined;
                    }
                }
            }
            return typeReferenceDirectives;
        }
        function isSymbolFromTypeDeclarationFile(symbol) {
            if (!symbol.declarations) {
                return false;
            }
            var current = symbol;
            while (true) {
                var parent_13 = getParentOfSymbol(current);
                if (parent_13) {
                    current = parent_13;
                }
                else {
                    break;
                }
            }
            if (current.valueDeclaration && current.valueDeclaration.kind === 261 && current.flags & 512) {
                return false;
            }
            for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
                var decl = _a[_i];
                var file = ts.getSourceFileOfNode(decl);
                if (fileToDirective.contains(file.path)) {
                    return true;
                }
            }
            return false;
        }
    }
    function getExternalModuleFileFromDeclaration(declaration) {
        var specifier = ts.getExternalModuleName(declaration);
        var moduleSymbol = resolveExternalModuleNameWorker(specifier, specifier, undefined);
        if (!moduleSymbol) {
            return undefined;
        }
        return ts.getDeclarationOfKind(moduleSymbol, 261);
    }
    function initializeTypeChecker() {
        for (var _i = 0, _a = host.getSourceFiles(); _i < _a.length; _i++) {
            var file = _a[_i];
            ts.bindSourceFile(file, compilerOptions);
        }
        var augmentations;
        for (var _b = 0, _c = host.getSourceFiles(); _b < _c.length; _b++) {
            var file = _c[_b];
            if (!ts.isExternalOrCommonJsModule(file)) {
                mergeSymbolTable(globals, file.locals);
            }
            if (file.patternAmbientModules && file.patternAmbientModules.length) {
                patternAmbientModules = ts.concatenate(patternAmbientModules, file.patternAmbientModules);
            }
            if (file.moduleAugmentations.length) {
                (augmentations || (augmentations = [])).push(file.moduleAugmentations);
            }
            if (file.symbol && file.symbol.globalExports) {
                var source = file.symbol.globalExports;
                for (var id in source) {
                    if (!(id in globals)) {
                        globals[id] = source[id];
                    }
                }
            }
        }
        if (augmentations) {
            for (var _d = 0, augmentations_1 = augmentations; _d < augmentations_1.length; _d++) {
                var list = augmentations_1[_d];
                for (var _e = 0, list_1 = list; _e < list_1.length; _e++) {
                    var augmentation = list_1[_e];
                    mergeModuleAugmentation(augmentation);
                }
            }
        }
        addToSymbolTable(globals, builtinGlobals, ts.Diagnostics.Declaration_name_conflicts_with_built_in_global_identifier_0);
        getSymbolLinks(undefinedSymbol).type = undefinedWideningType;
        getSymbolLinks(argumentsSymbol).type = getGlobalType("IArguments");
        getSymbolLinks(unknownSymbol).type = unknownType;
        globalArrayType = getGlobalType("Array", 1);
        globalObjectType = getGlobalType("Object");
        globalFunctionType = getGlobalType("Function");
        globalStringType = getGlobalType("String");
        globalNumberType = getGlobalType("Number");
        globalBooleanType = getGlobalType("Boolean");
        globalRegExpType = getGlobalType("RegExp");
        jsxElementType = getExportedTypeFromNamespace("JSX", JsxNames.Element);
        getGlobalClassDecoratorType = ts.memoize(function () { return getGlobalType("ClassDecorator"); });
        getGlobalPropertyDecoratorType = ts.memoize(function () { return getGlobalType("PropertyDecorator"); });
        getGlobalMethodDecoratorType = ts.memoize(function () { return getGlobalType("MethodDecorator"); });
        getGlobalParameterDecoratorType = ts.memoize(function () { return getGlobalType("ParameterDecorator"); });
        getGlobalTypedPropertyDescriptorType = ts.memoize(function () { return getGlobalType("TypedPropertyDescriptor", 1); });
        getGlobalESSymbolConstructorSymbol = ts.memoize(function () { return getGlobalValueSymbol("Symbol"); });
        getGlobalPromiseType = ts.memoize(function () { return getGlobalType("Promise", 1); });
        tryGetGlobalPromiseType = ts.memoize(function () { return getGlobalSymbol("Promise", 793064, undefined) && getGlobalPromiseType(); });
        getGlobalPromiseLikeType = ts.memoize(function () { return getGlobalType("PromiseLike", 1); });
        getInstantiatedGlobalPromiseLikeType = ts.memoize(createInstantiatedPromiseLikeType);
        getGlobalPromiseConstructorSymbol = ts.memoize(function () { return getGlobalValueSymbol("Promise"); });
        tryGetGlobalPromiseConstructorSymbol = ts.memoize(function () { return getGlobalSymbol("Promise", 107455, undefined) && getGlobalPromiseConstructorSymbol(); });
        getGlobalPromiseConstructorLikeType = ts.memoize(function () { return getGlobalType("PromiseConstructorLike"); });
        getGlobalThenableType = ts.memoize(createThenableType);
        getGlobalTemplateStringsArrayType = ts.memoize(function () { return getGlobalType("TemplateStringsArray"); });
        if (languageVersion >= 2) {
            getGlobalESSymbolType = ts.memoize(function () { return getGlobalType("Symbol"); });
            getGlobalIterableType = ts.memoize(function () { return getGlobalType("Iterable", 1); });
            getGlobalIteratorType = ts.memoize(function () { return getGlobalType("Iterator", 1); });
            getGlobalIterableIteratorType = ts.memoize(function () { return getGlobalType("IterableIterator", 1); });
        }
        else {
            getGlobalESSymbolType = ts.memoize(function () { return emptyObjectType; });
            getGlobalIterableType = ts.memoize(function () { return emptyGenericType; });
            getGlobalIteratorType = ts.memoize(function () { return emptyGenericType; });
            getGlobalIterableIteratorType = ts.memoize(function () { return emptyGenericType; });
        }
        anyArrayType = createArrayType(anyType);
        autoArrayType = createArrayType(autoType);
        var symbol = getGlobalSymbol("ReadonlyArray", 793064, undefined);
        globalReadonlyArrayType = symbol && getTypeOfGlobalSymbol(symbol, 1);
        anyReadonlyArrayType = globalReadonlyArrayType ? createTypeFromGenericGlobalType(globalReadonlyArrayType, [anyType]) : anyArrayType;
    }
    function checkExternalEmitHelpers(location, helpers) {
        if ((requestedExternalEmitHelpers & helpers) !== helpers && compilerOptions.importHelpers) {
            var sourceFile = ts.getSourceFileOfNode(location);
            if (ts.isEffectiveExternalModule(sourceFile, compilerOptions)) {
                var helpersModule = resolveHelpersModule(sourceFile, location);
                if (helpersModule !== unknownSymbol) {
                    var uncheckedHelpers = helpers & ~requestedExternalEmitHelpers;
                    for (var helper = 1; helper <= 128; helper <<= 1) {
                        if (uncheckedHelpers & helper) {
                            var name_27 = getHelperName(helper);
                            var symbol = getSymbol(helpersModule.exports, ts.escapeIdentifier(name_27), 107455);
                            if (!symbol) {
                                error(location, ts.Diagnostics.This_syntax_requires_an_imported_helper_named_1_but_module_0_has_no_exported_member_1, ts.externalHelpersModuleNameText, name_27);
                            }
                        }
                    }
                }
                requestedExternalEmitHelpers |= helpers;
            }
        }
    }
    function getHelperName(helper) {
        switch (helper) {
            case 1: return "__extends";
            case 2: return "__assign";
            case 4: return "__rest";
            case 8: return "__decorate";
            case 16: return "__metadata";
            case 32: return "__param";
            case 64: return "__awaiter";
            case 128: return "__generator";
        }
    }
    function resolveHelpersModule(node, errorNode) {
        if (!externalHelpersModule) {
            externalHelpersModule = resolveExternalModule(node, ts.externalHelpersModuleNameText, ts.Diagnostics.This_syntax_requires_an_imported_helper_but_module_0_cannot_be_found, errorNode) || unknownSymbol;
        }
        return externalHelpersModule;
    }
    function createInstantiatedPromiseLikeType() {
        var promiseLikeType = getGlobalPromiseLikeType();
        if (promiseLikeType !== emptyGenericType) {
            return createTypeReference(promiseLikeType, [anyType]);
        }
        return emptyObjectType;
    }
    function createThenableType() {
        var thenPropertySymbol = createSymbol(67108864 | 4, "then");
        getSymbolLinks(thenPropertySymbol).type = globalFunctionType;
        var thenableType = createObjectType(16);
        thenableType.properties = [thenPropertySymbol];
        thenableType.members = createSymbolTable(thenableType.properties);
        thenableType.callSignatures = [];
        thenableType.constructSignatures = [];
        return thenableType;
    }
    function checkGrammarDecorators(node) {
        if (!node.decorators) {
            return false;
        }
        if (!ts.nodeCanBeDecorated(node)) {
            if (node.kind === 149 && !ts.nodeIsPresent(node.body)) {
                return grammarErrorOnFirstToken(node, ts.Diagnostics.A_decorator_can_only_decorate_a_method_implementation_not_an_overload);
            }
            else {
                return grammarErrorOnFirstToken(node, ts.Diagnostics.Decorators_are_not_valid_here);
            }
        }
        else if (node.kind === 151 || node.kind === 152) {
            var accessors = ts.getAllAccessorDeclarations(node.parent.members, node);
            if (accessors.firstAccessor.decorators && node === accessors.secondAccessor) {
                return grammarErrorOnFirstToken(node, ts.Diagnostics.Decorators_cannot_be_applied_to_multiple_get_Slashset_accessors_of_the_same_name);
            }
        }
        return false;
    }
    function checkGrammarModifiers(node) {
        var quickResult = reportObviousModifierErrors(node);
        if (quickResult !== undefined) {
            return quickResult;
        }
        var lastStatic, lastPrivate, lastProtected, lastDeclare, lastAsync, lastReadonly;
        var flags = 0;
        for (var _i = 0, _a = node.modifiers; _i < _a.length; _i++) {
            var modifier = _a[_i];
            if (modifier.kind !== 130) {
                if (node.kind === 146 || node.kind === 148) {
                    return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_type_member, ts.tokenToString(modifier.kind));
                }
                if (node.kind === 155) {
                    return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_an_index_signature, ts.tokenToString(modifier.kind));
                }
            }
            switch (modifier.kind) {
                case 75:
                    if (node.kind !== 229 && node.parent.kind === 226) {
                        return grammarErrorOnNode(node, ts.Diagnostics.A_class_member_cannot_have_the_0_keyword, ts.tokenToString(75));
                    }
                    break;
                case 113:
                case 112:
                case 111:
                    var text = visibilityToString(ts.modifierToFlag(modifier.kind));
                    if (modifier.kind === 112) {
                        lastProtected = modifier;
                    }
                    else if (modifier.kind === 111) {
                        lastPrivate = modifier;
                    }
                    if (flags & 28) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics.Accessibility_modifier_already_seen);
                    }
                    else if (flags & 32) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, text, "static");
                    }
                    else if (flags & 64) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, text, "readonly");
                    }
                    else if (flags & 256) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, text, "async");
                    }
                    else if (node.parent.kind === 231 || node.parent.kind === 261) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_module_or_namespace_element, text);
                    }
                    else if (flags & 128) {
                        if (modifier.kind === 111) {
                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_1_modifier, text, "abstract");
                        }
                        else {
                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, text, "abstract");
                        }
                    }
                    flags |= ts.modifierToFlag(modifier.kind);
                    break;
                case 114:
                    if (flags & 32) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "static");
                    }
                    else if (flags & 64) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "static", "readonly");
                    }
                    else if (flags & 256) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "static", "async");
                    }
                    else if (node.parent.kind === 231 || node.parent.kind === 261) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_module_or_namespace_element, "static");
                    }
                    else if (node.kind === 144) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_parameter, "static");
                    }
                    else if (flags & 128) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_1_modifier, "static", "abstract");
                    }
                    flags |= 32;
                    lastStatic = modifier;
                    break;
                case 130:
                    if (flags & 64) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "readonly");
                    }
                    else if (node.kind !== 147 && node.kind !== 146 && node.kind !== 155 && node.kind !== 144) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics.readonly_modifier_can_only_appear_on_a_property_declaration_or_index_signature);
                    }
                    flags |= 64;
                    lastReadonly = modifier;
                    break;
                case 83:
                    if (flags & 1) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "export");
                    }
                    else if (flags & 2) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "export", "declare");
                    }
                    else if (flags & 128) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "export", "abstract");
                    }
                    else if (flags & 256) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "export", "async");
                    }
                    else if (node.parent.kind === 226) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_class_element, "export");
                    }
                    else if (node.kind === 144) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_parameter, "export");
                    }
                    flags |= 1;
                    break;
                case 123:
                    if (flags & 2) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "declare");
                    }
                    else if (flags & 256) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_in_an_ambient_context, "async");
                    }
                    else if (node.parent.kind === 226) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_class_element, "declare");
                    }
                    else if (node.kind === 144) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_parameter, "declare");
                    }
                    else if (ts.isInAmbientContext(node.parent) && node.parent.kind === 231) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics.A_declare_modifier_cannot_be_used_in_an_already_ambient_context);
                    }
                    flags |= 2;
                    lastDeclare = modifier;
                    break;
                case 116:
                    if (flags & 128) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "abstract");
                    }
                    if (node.kind !== 226) {
                        if (node.kind !== 149 &&
                            node.kind !== 147 &&
                            node.kind !== 151 &&
                            node.kind !== 152) {
                            return grammarErrorOnNode(modifier, ts.Diagnostics.abstract_modifier_can_only_appear_on_a_class_method_or_property_declaration);
                        }
                        if (!(node.parent.kind === 226 && ts.getModifierFlags(node.parent) & 128)) {
                            return grammarErrorOnNode(modifier, ts.Diagnostics.Abstract_methods_can_only_appear_within_an_abstract_class);
                        }
                        if (flags & 32) {
                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_1_modifier, "static", "abstract");
                        }
                        if (flags & 8) {
                            return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_1_modifier, "private", "abstract");
                        }
                    }
                    flags |= 128;
                    break;
                case 119:
                    if (flags & 256) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "async");
                    }
                    else if (flags & 2 || ts.isInAmbientContext(node.parent)) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_in_an_ambient_context, "async");
                    }
                    else if (node.kind === 144) {
                        return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_parameter, "async");
                    }
                    flags |= 256;
                    lastAsync = modifier;
                    break;
            }
        }
        if (node.kind === 150) {
            if (flags & 32) {
                return grammarErrorOnNode(lastStatic, ts.Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "static");
            }
            if (flags & 128) {
                return grammarErrorOnNode(lastStatic, ts.Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "abstract");
            }
            else if (flags & 256) {
                return grammarErrorOnNode(lastAsync, ts.Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "async");
            }
            else if (flags & 64) {
                return grammarErrorOnNode(lastReadonly, ts.Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "readonly");
            }
            return;
        }
        else if ((node.kind === 235 || node.kind === 234) && flags & 2) {
            return grammarErrorOnNode(lastDeclare, ts.Diagnostics.A_0_modifier_cannot_be_used_with_an_import_declaration, "declare");
        }
        else if (node.kind === 144 && (flags & 92) && ts.isBindingPattern(node.name)) {
            return grammarErrorOnNode(node, ts.Diagnostics.A_parameter_property_may_not_be_declared_using_a_binding_pattern);
        }
        else if (node.kind === 144 && (flags & 92) && node.dotDotDotToken) {
            return grammarErrorOnNode(node, ts.Diagnostics.A_parameter_property_cannot_be_declared_using_a_rest_parameter);
        }
        if (flags & 256) {
            return checkGrammarAsyncModifier(node, lastAsync);
        }
    }
    function reportObviousModifierErrors(node) {
        return !node.modifiers
            ? false
            : shouldReportBadModifier(node)
                ? grammarErrorOnFirstToken(node, ts.Diagnostics.Modifiers_cannot_appear_here)
                : undefined;
    }
    function shouldReportBadModifier(node) {
        switch (node.kind) {
            case 151:
            case 152:
            case 150:
            case 147:
            case 146:
            case 149:
            case 148:
            case 155:
            case 230:
            case 235:
            case 234:
            case 241:
            case 240:
            case 184:
            case 185:
            case 144:
                return false;
            default:
                if (node.parent.kind === 231 || node.parent.kind === 261) {
                    return false;
                }
                switch (node.kind) {
                    case 225:
                        return nodeHasAnyModifiersExcept(node, 119);
                    case 226:
                        return nodeHasAnyModifiersExcept(node, 116);
                    case 227:
                    case 205:
                    case 228:
                        return true;
                    case 229:
                        return nodeHasAnyModifiersExcept(node, 75);
                    default:
                        ts.Debug.fail();
                        return false;
                }
        }
    }
    function nodeHasAnyModifiersExcept(node, allowedModifier) {
        return node.modifiers.length > 1 || node.modifiers[0].kind !== allowedModifier;
    }
    function checkGrammarAsyncModifier(node, asyncModifier) {
        switch (node.kind) {
            case 149:
            case 225:
            case 184:
            case 185:
                if (!node.asteriskToken) {
                    return false;
                }
                break;
        }
        return grammarErrorOnNode(asyncModifier, ts.Diagnostics._0_modifier_cannot_be_used_here, "async");
    }
    function checkGrammarForDisallowedTrailingComma(list) {
        if (list && list.hasTrailingComma) {
            var start = list.end - ",".length;
            var end = list.end;
            var sourceFile = ts.getSourceFileOfNode(list[0]);
            return grammarErrorAtPos(sourceFile, start, end - start, ts.Diagnostics.Trailing_comma_not_allowed);
        }
    }
    function checkGrammarTypeParameterList(typeParameters, file) {
        if (checkGrammarForDisallowedTrailingComma(typeParameters)) {
            return true;
        }
        if (typeParameters && typeParameters.length === 0) {
            var start = typeParameters.pos - "<".length;
            var end = ts.skipTrivia(file.text, typeParameters.end) + ">".length;
            return grammarErrorAtPos(file, start, end - start, ts.Diagnostics.Type_parameter_list_cannot_be_empty);
        }
    }
    function checkGrammarParameterList(parameters) {
        var seenOptionalParameter = false;
        var parameterCount = parameters.length;
        for (var i = 0; i < parameterCount; i++) {
            var parameter = parameters[i];
            if (parameter.dotDotDotToken) {
                if (i !== (parameterCount - 1)) {
                    return grammarErrorOnNode(parameter.dotDotDotToken, ts.Diagnostics.A_rest_parameter_must_be_last_in_a_parameter_list);
                }
                if (ts.isBindingPattern(parameter.name)) {
                    return grammarErrorOnNode(parameter.name, ts.Diagnostics.A_rest_element_cannot_contain_a_binding_pattern);
                }
                if (parameter.questionToken) {
                    return grammarErrorOnNode(parameter.questionToken, ts.Diagnostics.A_rest_parameter_cannot_be_optional);
                }
                if (parameter.initializer) {
                    return grammarErrorOnNode(parameter.name, ts.Diagnostics.A_rest_parameter_cannot_have_an_initializer);
                }
            }
            else if (parameter.questionToken) {
                seenOptionalParameter = true;
                if (parameter.initializer) {
                    return grammarErrorOnNode(parameter.name, ts.Diagnostics.Parameter_cannot_have_question_mark_and_initializer);
                }
            }
            else if (seenOptionalParameter && !parameter.initializer) {
                return grammarErrorOnNode(parameter.name, ts.Diagnostics.A_required_parameter_cannot_follow_an_optional_parameter);
            }
        }
    }
    function checkGrammarFunctionLikeDeclaration(node) {
        var file = ts.getSourceFileOfNode(node);
        return checkGrammarDecorators(node) || checkGrammarModifiers(node) || checkGrammarTypeParameterList(node.typeParameters, file) ||
            checkGrammarParameterList(node.parameters) || checkGrammarArrowFunction(node, file);
    }
    function checkGrammarArrowFunction(node, file) {
        if (node.kind === 185) {
            var arrowFunction = node;
            var startLine = ts.getLineAndCharacterOfPosition(file, arrowFunction.equalsGreaterThanToken.pos).line;
            var endLine = ts.getLineAndCharacterOfPosition(file, arrowFunction.equalsGreaterThanToken.end).line;
            if (startLine !== endLine) {
                return grammarErrorOnNode(arrowFunction.equalsGreaterThanToken, ts.Diagnostics.Line_terminator_not_permitted_before_arrow);
            }
        }
        return false;
    }
    function checkGrammarIndexSignatureParameters(node) {
        var parameter = node.parameters[0];
        if (node.parameters.length !== 1) {
            if (parameter) {
                return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_must_have_exactly_one_parameter);
            }
            else {
                return grammarErrorOnNode(node, ts.Diagnostics.An_index_signature_must_have_exactly_one_parameter);
            }
        }
        if (parameter.dotDotDotToken) {
            return grammarErrorOnNode(parameter.dotDotDotToken, ts.Diagnostics.An_index_signature_cannot_have_a_rest_parameter);
        }
        if (ts.getModifierFlags(parameter) !== 0) {
            return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_cannot_have_an_accessibility_modifier);
        }
        if (parameter.questionToken) {
            return grammarErrorOnNode(parameter.questionToken, ts.Diagnostics.An_index_signature_parameter_cannot_have_a_question_mark);
        }
        if (parameter.initializer) {
            return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_cannot_have_an_initializer);
        }
        if (!parameter.type) {
            return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_must_have_a_type_annotation);
        }
        if (parameter.type.kind !== 134 && parameter.type.kind !== 132) {
            return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_type_must_be_string_or_number);
        }
        if (!node.type) {
            return grammarErrorOnNode(node, ts.Diagnostics.An_index_signature_must_have_a_type_annotation);
        }
    }
    function checkGrammarIndexSignature(node) {
        return checkGrammarDecorators(node) || checkGrammarModifiers(node) || checkGrammarIndexSignatureParameters(node);
    }
    function checkGrammarForAtLeastOneTypeArgument(node, typeArguments) {
        if (typeArguments && typeArguments.length === 0) {
            var sourceFile = ts.getSourceFileOfNode(node);
            var start = typeArguments.pos - "<".length;
            var end = ts.skipTrivia(sourceFile.text, typeArguments.end) + ">".length;
            return grammarErrorAtPos(sourceFile, start, end - start, ts.Diagnostics.Type_argument_list_cannot_be_empty);
        }
    }
    function checkGrammarTypeArguments(node, typeArguments) {
        return checkGrammarForDisallowedTrailingComma(typeArguments) ||
            checkGrammarForAtLeastOneTypeArgument(node, typeArguments);
    }
    function checkGrammarForOmittedArgument(node, args) {
        if (args) {
            var sourceFile = ts.getSourceFileOfNode(node);
            for (var _i = 0, args_4 = args; _i < args_4.length; _i++) {
                var arg = args_4[_i];
                if (arg.kind === 198) {
                    return grammarErrorAtPos(sourceFile, arg.pos, 0, ts.Diagnostics.Argument_expression_expected);
                }
            }
        }
    }
    function checkGrammarArguments(node, args) {
        return checkGrammarForOmittedArgument(node, args);
    }
    function checkGrammarHeritageClause(node) {
        var types = node.types;
        if (checkGrammarForDisallowedTrailingComma(types)) {
            return true;
        }
        if (types && types.length === 0) {
            var listType = ts.tokenToString(node.token);
            var sourceFile = ts.getSourceFileOfNode(node);
            return grammarErrorAtPos(sourceFile, types.pos, 0, ts.Diagnostics._0_list_cannot_be_empty, listType);
        }
    }
    function checkGrammarClassDeclarationHeritageClauses(node) {
        var seenExtendsClause = false;
        var seenImplementsClause = false;
        if (!checkGrammarDecorators(node) && !checkGrammarModifiers(node) && node.heritageClauses) {
            for (var _i = 0, _a = node.heritageClauses; _i < _a.length; _i++) {
                var heritageClause = _a[_i];
                if (heritageClause.token === 84) {
                    if (seenExtendsClause) {
                        return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.extends_clause_already_seen);
                    }
                    if (seenImplementsClause) {
                        return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.extends_clause_must_precede_implements_clause);
                    }
                    if (heritageClause.types.length > 1) {
                        return grammarErrorOnFirstToken(heritageClause.types[1], ts.Diagnostics.Classes_can_only_extend_a_single_class);
                    }
                    seenExtendsClause = true;
                }
                else {
                    ts.Debug.assert(heritageClause.token === 107);
                    if (seenImplementsClause) {
                        return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.implements_clause_already_seen);
                    }
                    seenImplementsClause = true;
                }
                checkGrammarHeritageClause(heritageClause);
            }
        }
    }
    function checkGrammarInterfaceDeclaration(node) {
        var seenExtendsClause = false;
        if (node.heritageClauses) {
            for (var _i = 0, _a = node.heritageClauses; _i < _a.length; _i++) {
                var heritageClause = _a[_i];
                if (heritageClause.token === 84) {
                    if (seenExtendsClause) {
                        return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.extends_clause_already_seen);
                    }
                    seenExtendsClause = true;
                }
                else {
                    ts.Debug.assert(heritageClause.token === 107);
                    return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.Interface_declaration_cannot_have_implements_clause);
                }
                checkGrammarHeritageClause(heritageClause);
            }
        }
        return false;
    }
    function checkGrammarComputedPropertyName(node) {
        if (node.kind !== 142) {
            return false;
        }
        var computedPropertyName = node;
        if (computedPropertyName.expression.kind === 192 && computedPropertyName.expression.operatorToken.kind === 25) {
            return grammarErrorOnNode(computedPropertyName.expression, ts.Diagnostics.A_comma_expression_is_not_allowed_in_a_computed_property_name);
        }
    }
    function checkGrammarForGenerator(node) {
        if (node.asteriskToken) {
            ts.Debug.assert(node.kind === 225 ||
                node.kind === 184 ||
                node.kind === 149);
            if (ts.isInAmbientContext(node)) {
                return grammarErrorOnNode(node.asteriskToken, ts.Diagnostics.Generators_are_not_allowed_in_an_ambient_context);
            }
            if (!node.body) {
                return grammarErrorOnNode(node.asteriskToken, ts.Diagnostics.An_overload_signature_cannot_be_declared_as_a_generator);
            }
            if (languageVersion < 2) {
                return grammarErrorOnNode(node.asteriskToken, ts.Diagnostics.Generators_are_only_available_when_targeting_ECMAScript_2015_or_higher);
            }
        }
    }
    function checkGrammarForInvalidQuestionMark(questionToken, message) {
        if (questionToken) {
            return grammarErrorOnNode(questionToken, message);
        }
    }
    function checkGrammarObjectLiteralExpression(node, inDestructuring) {
        var seen = ts.createMap();
        var Property = 1;
        var GetAccessor = 2;
        var SetAccessor = 4;
        var GetOrSetAccessor = GetAccessor | SetAccessor;
        for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
            var prop = _a[_i];
            if (prop.kind === 259) {
                continue;
            }
            var name_28 = prop.name;
            if (name_28.kind === 142) {
                checkGrammarComputedPropertyName(name_28);
            }
            if (prop.kind === 258 && !inDestructuring && prop.objectAssignmentInitializer) {
                return grammarErrorOnNode(prop.equalsToken, ts.Diagnostics.can_only_be_used_in_an_object_literal_property_inside_a_destructuring_assignment);
            }
            if (prop.modifiers) {
                for (var _b = 0, _c = prop.modifiers; _b < _c.length; _b++) {
                    var mod = _c[_b];
                    if (mod.kind !== 119 || prop.kind !== 149) {
                        grammarErrorOnNode(mod, ts.Diagnostics._0_modifier_cannot_be_used_here, ts.getTextOfNode(mod));
                    }
                }
            }
            var currentKind = void 0;
            if (prop.kind === 257 || prop.kind === 258) {
                checkGrammarForInvalidQuestionMark(prop.questionToken, ts.Diagnostics.An_object_member_cannot_be_declared_optional);
                if (name_28.kind === 8) {
                    checkGrammarNumericLiteral(name_28);
                }
                currentKind = Property;
            }
            else if (prop.kind === 149) {
                currentKind = Property;
            }
            else if (prop.kind === 151) {
                currentKind = GetAccessor;
            }
            else if (prop.kind === 152) {
                currentKind = SetAccessor;
            }
            else {
                ts.Debug.fail("Unexpected syntax kind:" + prop.kind);
            }
            var effectiveName = ts.getPropertyNameForPropertyNameNode(name_28);
            if (effectiveName === undefined) {
                continue;
            }
            if (!seen[effectiveName]) {
                seen[effectiveName] = currentKind;
            }
            else {
                var existingKind = seen[effectiveName];
                if (currentKind === Property && existingKind === Property) {
                    grammarErrorOnNode(name_28, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(name_28));
                }
                else if ((currentKind & GetOrSetAccessor) && (existingKind & GetOrSetAccessor)) {
                    if (existingKind !== GetOrSetAccessor && currentKind !== existingKind) {
                        seen[effectiveName] = currentKind | existingKind;
                    }
                    else {
                        return grammarErrorOnNode(name_28, ts.Diagnostics.An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name);
                    }
                }
                else {
                    return grammarErrorOnNode(name_28, ts.Diagnostics.An_object_literal_cannot_have_property_and_accessor_with_the_same_name);
                }
            }
        }
    }
    function checkGrammarJsxElement(node) {
        var seen = ts.createMap();
        for (var _i = 0, _a = node.attributes; _i < _a.length; _i++) {
            var attr = _a[_i];
            if (attr.kind === 251) {
                continue;
            }
            var jsxAttr = attr;
            var name_29 = jsxAttr.name;
            if (!seen[name_29.text]) {
                seen[name_29.text] = true;
            }
            else {
                return grammarErrorOnNode(name_29, ts.Diagnostics.JSX_elements_cannot_have_multiple_attributes_with_the_same_name);
            }
            var initializer = jsxAttr.initializer;
            if (initializer && initializer.kind === 252 && !initializer.expression) {
                return grammarErrorOnNode(jsxAttr.initializer, ts.Diagnostics.JSX_attributes_must_only_be_assigned_a_non_empty_expression);
            }
        }
    }
    function checkGrammarForInOrForOfStatement(forInOrOfStatement) {
        if (checkGrammarStatementInAmbientContext(forInOrOfStatement)) {
            return true;
        }
        if (forInOrOfStatement.initializer.kind === 224) {
            var variableList = forInOrOfStatement.initializer;
            if (!checkGrammarVariableDeclarationList(variableList)) {
                var declarations = variableList.declarations;
                if (!declarations.length) {
                    return false;
                }
                if (declarations.length > 1) {
                    var diagnostic = forInOrOfStatement.kind === 212
                        ? ts.Diagnostics.Only_a_single_variable_declaration_is_allowed_in_a_for_in_statement
                        : ts.Diagnostics.Only_a_single_variable_declaration_is_allowed_in_a_for_of_statement;
                    return grammarErrorOnFirstToken(variableList.declarations[1], diagnostic);
                }
                var firstDeclaration = declarations[0];
                if (firstDeclaration.initializer) {
                    var diagnostic = forInOrOfStatement.kind === 212
                        ? ts.Diagnostics.The_variable_declaration_of_a_for_in_statement_cannot_have_an_initializer
                        : ts.Diagnostics.The_variable_declaration_of_a_for_of_statement_cannot_have_an_initializer;
                    return grammarErrorOnNode(firstDeclaration.name, diagnostic);
                }
                if (firstDeclaration.type) {
                    var diagnostic = forInOrOfStatement.kind === 212
                        ? ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_use_a_type_annotation
                        : ts.Diagnostics.The_left_hand_side_of_a_for_of_statement_cannot_use_a_type_annotation;
                    return grammarErrorOnNode(firstDeclaration, diagnostic);
                }
            }
        }
        return false;
    }
    function checkGrammarAccessor(accessor) {
        var kind = accessor.kind;
        if (languageVersion < 1) {
            return grammarErrorOnNode(accessor.name, ts.Diagnostics.Accessors_are_only_available_when_targeting_ECMAScript_5_and_higher);
        }
        else if (ts.isInAmbientContext(accessor)) {
            return grammarErrorOnNode(accessor.name, ts.Diagnostics.An_accessor_cannot_be_declared_in_an_ambient_context);
        }
        else if (accessor.body === undefined && !(ts.getModifierFlags(accessor) & 128)) {
            return grammarErrorAtPos(ts.getSourceFileOfNode(accessor), accessor.end - 1, ";".length, ts.Diagnostics._0_expected, "{");
        }
        else if (accessor.body && ts.getModifierFlags(accessor) & 128) {
            return grammarErrorOnNode(accessor, ts.Diagnostics.An_abstract_accessor_cannot_have_an_implementation);
        }
        else if (accessor.typeParameters) {
            return grammarErrorOnNode(accessor.name, ts.Diagnostics.An_accessor_cannot_have_type_parameters);
        }
        else if (!doesAccessorHaveCorrectParameterCount(accessor)) {
            return grammarErrorOnNode(accessor.name, kind === 151 ?
                ts.Diagnostics.A_get_accessor_cannot_have_parameters :
                ts.Diagnostics.A_set_accessor_must_have_exactly_one_parameter);
        }
        else if (kind === 152) {
            if (accessor.type) {
                return grammarErrorOnNode(accessor.name, ts.Diagnostics.A_set_accessor_cannot_have_a_return_type_annotation);
            }
            else {
                var parameter = accessor.parameters[0];
                if (parameter.dotDotDotToken) {
                    return grammarErrorOnNode(parameter.dotDotDotToken, ts.Diagnostics.A_set_accessor_cannot_have_rest_parameter);
                }
                else if (parameter.questionToken) {
                    return grammarErrorOnNode(parameter.questionToken, ts.Diagnostics.A_set_accessor_cannot_have_an_optional_parameter);
                }
                else if (parameter.initializer) {
                    return grammarErrorOnNode(accessor.name, ts.Diagnostics.A_set_accessor_parameter_cannot_have_an_initializer);
                }
            }
        }
    }
    function doesAccessorHaveCorrectParameterCount(accessor) {
        return getAccessorThisParameter(accessor) || accessor.parameters.length === (accessor.kind === 151 ? 0 : 1);
    }
    function getAccessorThisParameter(accessor) {
        if (accessor.parameters.length === (accessor.kind === 151 ? 1 : 2)) {
            return ts.getThisParameter(accessor);
        }
    }
    function checkGrammarForNonSymbolComputedProperty(node, message) {
        if (ts.isDynamicName(node)) {
            return grammarErrorOnNode(node, message);
        }
    }
    function checkGrammarMethod(node) {
        if (checkGrammarDisallowedModifiersOnObjectLiteralExpressionMethod(node) ||
            checkGrammarFunctionLikeDeclaration(node) ||
            checkGrammarForGenerator(node)) {
            return true;
        }
        if (node.parent.kind === 176) {
            if (checkGrammarForInvalidQuestionMark(node.questionToken, ts.Diagnostics.An_object_member_cannot_be_declared_optional)) {
                return true;
            }
            else if (node.body === undefined) {
                return grammarErrorAtPos(ts.getSourceFileOfNode(node), node.end - 1, ";".length, ts.Diagnostics._0_expected, "{");
            }
        }
        if (ts.isClassLike(node.parent)) {
            if (ts.isInAmbientContext(node)) {
                return checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_an_ambient_context_must_directly_refer_to_a_built_in_symbol);
            }
            else if (!node.body) {
                return checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_a_method_overload_must_directly_refer_to_a_built_in_symbol);
            }
        }
        else if (node.parent.kind === 227) {
            return checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_an_interface_must_directly_refer_to_a_built_in_symbol);
        }
        else if (node.parent.kind === 161) {
            return checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_a_type_literal_must_directly_refer_to_a_built_in_symbol);
        }
    }
    function checkGrammarBreakOrContinueStatement(node) {
        var current = node;
        while (current) {
            if (ts.isFunctionLike(current)) {
                return grammarErrorOnNode(node, ts.Diagnostics.Jump_target_cannot_cross_function_boundary);
            }
            switch (current.kind) {
                case 219:
                    if (node.label && current.label.text === node.label.text) {
                        var isMisplacedContinueLabel = node.kind === 214
                            && !ts.isIterationStatement(current.statement, true);
                        if (isMisplacedContinueLabel) {
                            return grammarErrorOnNode(node, ts.Diagnostics.A_continue_statement_can_only_jump_to_a_label_of_an_enclosing_iteration_statement);
                        }
                        return false;
                    }
                    break;
                case 218:
                    if (node.kind === 215 && !node.label) {
                        return false;
                    }
                    break;
                default:
                    if (ts.isIterationStatement(current, false) && !node.label) {
                        return false;
                    }
                    break;
            }
            current = current.parent;
        }
        if (node.label) {
            var message = node.kind === 215
                ? ts.Diagnostics.A_break_statement_can_only_jump_to_a_label_of_an_enclosing_statement
                : ts.Diagnostics.A_continue_statement_can_only_jump_to_a_label_of_an_enclosing_iteration_statement;
            return grammarErrorOnNode(node, message);
        }
        else {
            var message = node.kind === 215
                ? ts.Diagnostics.A_break_statement_can_only_be_used_within_an_enclosing_iteration_or_switch_statement
                : ts.Diagnostics.A_continue_statement_can_only_be_used_within_an_enclosing_iteration_statement;
            return grammarErrorOnNode(node, message);
        }
    }
    function checkGrammarBindingElement(node) {
        if (node.dotDotDotToken) {
            var elements = node.parent.elements;
            if (node !== ts.lastOrUndefined(elements)) {
                return grammarErrorOnNode(node, ts.Diagnostics.A_rest_element_must_be_last_in_a_destructuring_pattern);
            }
            if (node.name.kind === 173 || node.name.kind === 172) {
                return grammarErrorOnNode(node.name, ts.Diagnostics.A_rest_element_cannot_contain_a_binding_pattern);
            }
            if (node.initializer) {
                return grammarErrorAtPos(ts.getSourceFileOfNode(node), node.initializer.pos - 1, 1, ts.Diagnostics.A_rest_element_cannot_have_an_initializer);
            }
        }
    }
    function isStringOrNumberLiteralExpression(expr) {
        return expr.kind === 9 || expr.kind === 8 ||
            expr.kind === 190 && expr.operator === 37 &&
                expr.operand.kind === 8;
    }
    function checkGrammarVariableDeclaration(node) {
        if (node.parent.parent.kind !== 212 && node.parent.parent.kind !== 213) {
            if (ts.isInAmbientContext(node)) {
                if (node.initializer) {
                    if (ts.isConst(node) && !node.type) {
                        if (!isStringOrNumberLiteralExpression(node.initializer)) {
                            return grammarErrorOnNode(node.initializer, ts.Diagnostics.A_const_initializer_in_an_ambient_context_must_be_a_string_or_numeric_literal);
                        }
                    }
                    else {
                        var equalsTokenLength = "=".length;
                        return grammarErrorAtPos(ts.getSourceFileOfNode(node), node.initializer.pos - equalsTokenLength, equalsTokenLength, ts.Diagnostics.Initializers_are_not_allowed_in_ambient_contexts);
                    }
                }
                if (node.initializer && !(ts.isConst(node) && isStringOrNumberLiteralExpression(node.initializer))) {
                    var equalsTokenLength = "=".length;
                    return grammarErrorAtPos(ts.getSourceFileOfNode(node), node.initializer.pos - equalsTokenLength, equalsTokenLength, ts.Diagnostics.Initializers_are_not_allowed_in_ambient_contexts);
                }
            }
            else if (!node.initializer) {
                if (ts.isBindingPattern(node.name) && !ts.isBindingPattern(node.parent)) {
                    return grammarErrorOnNode(node, ts.Diagnostics.A_destructuring_declaration_must_have_an_initializer);
                }
                if (ts.isConst(node)) {
                    return grammarErrorOnNode(node, ts.Diagnostics.const_declarations_must_be_initialized);
                }
            }
        }
        var checkLetConstNames = (ts.isLet(node) || ts.isConst(node));
        return checkLetConstNames && checkGrammarNameInLetOrConstDeclarations(node.name);
    }
    function checkGrammarNameInLetOrConstDeclarations(name) {
        if (name.kind === 70) {
            if (name.originalKeywordKind === 109) {
                return grammarErrorOnNode(name, ts.Diagnostics.let_is_not_allowed_to_be_used_as_a_name_in_let_or_const_declarations);
            }
        }
        else {
            var elements = name.elements;
            for (var _i = 0, elements_2 = elements; _i < elements_2.length; _i++) {
                var element = elements_2[_i];
                if (!ts.isOmittedExpression(element)) {
                    checkGrammarNameInLetOrConstDeclarations(element.name);
                }
            }
        }
    }
    function checkGrammarVariableDeclarationList(declarationList) {
        var declarations = declarationList.declarations;
        if (checkGrammarForDisallowedTrailingComma(declarationList.declarations)) {
            return true;
        }
        if (!declarationList.declarations.length) {
            return grammarErrorAtPos(ts.getSourceFileOfNode(declarationList), declarations.pos, declarations.end - declarations.pos, ts.Diagnostics.Variable_declaration_list_cannot_be_empty);
        }
    }
    function allowLetAndConstDeclarations(parent) {
        switch (parent.kind) {
            case 208:
            case 209:
            case 210:
            case 217:
            case 211:
            case 212:
            case 213:
                return false;
            case 219:
                return allowLetAndConstDeclarations(parent.parent);
        }
        return true;
    }
    function checkGrammarForDisallowedLetOrConstStatement(node) {
        if (!allowLetAndConstDeclarations(node.parent)) {
            if (ts.isLet(node.declarationList)) {
                return grammarErrorOnNode(node, ts.Diagnostics.let_declarations_can_only_be_declared_inside_a_block);
            }
            else if (ts.isConst(node.declarationList)) {
                return grammarErrorOnNode(node, ts.Diagnostics.const_declarations_can_only_be_declared_inside_a_block);
            }
        }
    }
    function hasParseDiagnostics(sourceFile) {
        return sourceFile.parseDiagnostics.length > 0;
    }
    function grammarErrorOnFirstToken(node, message, arg0, arg1, arg2) {
        var sourceFile = ts.getSourceFileOfNode(node);
        if (!hasParseDiagnostics(sourceFile)) {
            var span_4 = ts.getSpanOfTokenAtPosition(sourceFile, node.pos);
            diagnostics.add(ts.createFileDiagnostic(sourceFile, span_4.start, span_4.length, message, arg0, arg1, arg2));
            return true;
        }
    }
    function grammarErrorAtPos(sourceFile, start, length, message, arg0, arg1, arg2) {
        if (!hasParseDiagnostics(sourceFile)) {
            diagnostics.add(ts.createFileDiagnostic(sourceFile, start, length, message, arg0, arg1, arg2));
            return true;
        }
    }
    function grammarErrorOnNode(node, message, arg0, arg1, arg2) {
        var sourceFile = ts.getSourceFileOfNode(node);
        if (!hasParseDiagnostics(sourceFile)) {
            diagnostics.add(ts.createDiagnosticForNode(node, message, arg0, arg1, arg2));
            return true;
        }
    }
    function checkGrammarConstructorTypeParameters(node) {
        if (node.typeParameters) {
            return grammarErrorAtPos(ts.getSourceFileOfNode(node), node.typeParameters.pos, node.typeParameters.end - node.typeParameters.pos, ts.Diagnostics.Type_parameters_cannot_appear_on_a_constructor_declaration);
        }
    }
    function checkGrammarConstructorTypeAnnotation(node) {
        if (node.type) {
            return grammarErrorOnNode(node.type, ts.Diagnostics.Type_annotation_cannot_appear_on_a_constructor_declaration);
        }
    }
    function checkGrammarProperty(node) {
        if (ts.isClassLike(node.parent)) {
            if (checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_a_class_property_declaration_must_directly_refer_to_a_built_in_symbol)) {
                return true;
            }
        }
        else if (node.parent.kind === 227) {
            if (checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_an_interface_must_directly_refer_to_a_built_in_symbol)) {
                return true;
            }
            if (node.initializer) {
                return grammarErrorOnNode(node.initializer, ts.Diagnostics.An_interface_property_cannot_have_an_initializer);
            }
        }
        else if (node.parent.kind === 161) {
            if (checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_a_type_literal_must_directly_refer_to_a_built_in_symbol)) {
                return true;
            }
            if (node.initializer) {
                return grammarErrorOnNode(node.initializer, ts.Diagnostics.A_type_literal_property_cannot_have_an_initializer);
            }
        }
        if (ts.isInAmbientContext(node) && node.initializer) {
            return grammarErrorOnFirstToken(node.initializer, ts.Diagnostics.Initializers_are_not_allowed_in_ambient_contexts);
        }
    }
    function checkGrammarTopLevelElementForRequiredDeclareModifier(node) {
        if (node.kind === 227 ||
            node.kind === 228 ||
            node.kind === 235 ||
            node.kind === 234 ||
            node.kind === 241 ||
            node.kind === 240 ||
            node.kind === 233 ||
            ts.getModifierFlags(node) & (2 | 1 | 512)) {
            return false;
        }
        return grammarErrorOnFirstToken(node, ts.Diagnostics.A_declare_modifier_is_required_for_a_top_level_declaration_in_a_d_ts_file);
    }
    function checkGrammarTopLevelElementsForRequiredDeclareModifier(file) {
        for (var _i = 0, _a = file.statements; _i < _a.length; _i++) {
            var decl = _a[_i];
            if (ts.isDeclaration(decl) || decl.kind === 205) {
                if (checkGrammarTopLevelElementForRequiredDeclareModifier(decl)) {
                    return true;
                }
            }
        }
    }
    function checkGrammarSourceFile(node) {
        return ts.isInAmbientContext(node) && checkGrammarTopLevelElementsForRequiredDeclareModifier(node);
    }
    function checkGrammarStatementInAmbientContext(node) {
        if (ts.isInAmbientContext(node)) {
            if (isAccessor(node.parent.kind)) {
                return getNodeLinks(node).hasReportedStatementInAmbientContext = true;
            }
            var links = getNodeLinks(node);
            if (!links.hasReportedStatementInAmbientContext && ts.isFunctionLike(node.parent)) {
                return getNodeLinks(node).hasReportedStatementInAmbientContext = grammarErrorOnFirstToken(node, ts.Diagnostics.An_implementation_cannot_be_declared_in_ambient_contexts);
            }
            if (node.parent.kind === 204 || node.parent.kind === 231 || node.parent.kind === 261) {
                var links_1 = getNodeLinks(node.parent);
                if (!links_1.hasReportedStatementInAmbientContext) {
                    return links_1.hasReportedStatementInAmbientContext = grammarErrorOnFirstToken(node, ts.Diagnostics.Statements_are_not_allowed_in_ambient_contexts);
                }
            }
            else {
            }
        }
    }
    function checkGrammarNumericLiteral(node) {
        if (node.isOctalLiteral) {
            var diagnosticMessage = void 0;
            if (languageVersion >= 1) {
                diagnosticMessage = ts.Diagnostics.Octal_literals_are_not_available_when_targeting_ECMAScript_5_and_higher_Use_the_syntax_0;
            }
            else if (ts.isChildOfLiteralType(node)) {
                diagnosticMessage = ts.Diagnostics.Octal_literal_types_must_use_ES2015_syntax_Use_the_syntax_0;
            }
            if (diagnosticMessage) {
                var withMinus = ts.isPrefixUnaryExpression(node.parent) && node.parent.operator === 37;
                var literal = (withMinus ? "-" : "") + "0o" + node.text;
                return grammarErrorOnNode(withMinus ? node.parent : node, diagnosticMessage, literal);
            }
        }
    }
    function grammarErrorAfterFirstToken(node, message, arg0, arg1, arg2) {
        var sourceFile = ts.getSourceFileOfNode(node);
        if (!hasParseDiagnostics(sourceFile)) {
            var span_5 = ts.getSpanOfTokenAtPosition(sourceFile, node.pos);
            diagnostics.add(ts.createFileDiagnostic(sourceFile, ts.textSpanEnd(span_5), 0, message, arg0, arg1, arg2));
            return true;
        }
    }
    function getAmbientModules() {
        var result = [];
        for (var sym in globals) {
            if (ambientModuleSymbolRegex.test(sym)) {
                result.push(globals[sym]);
            }
        }
        return result;
    }
}
ts.createTypeChecker = createTypeChecker;

})(ts || (ts = {})); var ts; (function (ts) {

;
var nodeEdgeTraversalMap = ts.createMap((_a = {},
    _a[141] = [
        { name: "left", test: ts.isEntityName },
        { name: "right", test: ts.isIdentifier }
    ],
    _a[145] = [
        { name: "expression", test: ts.isLeftHandSideExpression }
    ],
    _a[182] = [
        { name: "type", test: ts.isTypeNode },
        { name: "expression", test: ts.isUnaryExpression }
    ],
    _a[200] = [
        { name: "expression", test: ts.isExpression },
        { name: "type", test: ts.isTypeNode }
    ],
    _a[201] = [
        { name: "expression", test: ts.isLeftHandSideExpression }
    ],
    _a[229] = [
        { name: "decorators", test: ts.isDecorator },
        { name: "modifiers", test: ts.isModifier },
        { name: "name", test: ts.isIdentifier },
        { name: "members", test: ts.isEnumMember }
    ],
    _a[230] = [
        { name: "decorators", test: ts.isDecorator },
        { name: "modifiers", test: ts.isModifier },
        { name: "name", test: ts.isModuleName },
        { name: "body", test: ts.isModuleBody }
    ],
    _a[231] = [
        { name: "statements", test: ts.isStatement }
    ],
    _a[234] = [
        { name: "decorators", test: ts.isDecorator },
        { name: "modifiers", test: ts.isModifier },
        { name: "name", test: ts.isIdentifier },
        { name: "moduleReference", test: ts.isModuleReference }
    ],
    _a[245] = [
        { name: "expression", test: ts.isExpression, optional: true }
    ],
    _a[260] = [
        { name: "name", test: ts.isPropertyName },
        { name: "initializer", test: ts.isExpression, optional: true, parenthesize: ts.parenthesizeExpressionForList }
    ],
    _a));
function reduceNode(node, f, initial) {
    return node ? f(initial, node) : initial;
}
function reduceNodeArray(nodes, f, initial) {
    return nodes ? f(initial, nodes) : initial;
}
function reduceEachChild(node, initial, cbNode, cbNodeArray) {
    if (node === undefined) {
        return initial;
    }
    var reduceNodes = cbNodeArray ? reduceNodeArray : ts.reduceLeft;
    var cbNodes = cbNodeArray || cbNode;
    var kind = node.kind;
    if ((kind > 0 && kind <= 140)) {
        return initial;
    }
    if ((kind >= 156 && kind <= 171)) {
        return initial;
    }
    var result = initial;
    switch (node.kind) {
        case 203:
        case 206:
        case 198:
        case 222:
        case 293:
            break;
        case 142:
            result = reduceNode(node.expression, cbNode, result);
            break;
        case 144:
            result = reduceNodes(node.decorators, cbNodes, result);
            result = reduceNodes(node.modifiers, cbNodes, result);
            result = reduceNode(node.name, cbNode, result);
            result = reduceNode(node.type, cbNode, result);
            result = reduceNode(node.initializer, cbNode, result);
            break;
        case 145:
            result = reduceNode(node.expression, cbNode, result);
            break;
        case 147:
            result = reduceNodes(node.decorators, cbNodes, result);
            result = reduceNodes(node.modifiers, cbNodes, result);
            result = reduceNode(node.name, cbNode, result);
            result = reduceNode(node.type, cbNode, result);
            result = reduceNode(node.initializer, cbNode, result);
            break;
        case 149:
            result = reduceNodes(node.decorators, cbNodes, result);
            result = reduceNodes(node.modifiers, cbNodes, result);
            result = reduceNode(node.name, cbNode, result);
            result = reduceNodes(node.typeParameters, cbNodes, result);
            result = reduceNodes(node.parameters, cbNodes, result);
            result = reduceNode(node.type, cbNode, result);
            result = reduceNode(node.body, cbNode, result);
            break;
        case 150:
            result = reduceNodes(node.modifiers, cbNodes, result);
            result = reduceNodes(node.parameters, cbNodes, result);
            result = reduceNode(node.body, cbNode, result);
            break;
        case 151:
            result = reduceNodes(node.decorators, cbNodes, result);
            result = reduceNodes(node.modifiers, cbNodes, result);
            result = reduceNode(node.name, cbNode, result);
            result = reduceNodes(node.parameters, cbNodes, result);
            result = reduceNode(node.type, cbNode, result);
            result = reduceNode(node.body, cbNode, result);
            break;
        case 152:
            result = reduceNodes(node.decorators, cbNodes, result);
            result = reduceNodes(node.modifiers, cbNodes, result);
            result = reduceNode(node.name, cbNode, result);
            result = reduceNodes(node.parameters, cbNodes, result);
            result = reduceNode(node.body, cbNode, result);
            break;
        case 172:
        case 173:
            result = reduceNodes(node.elements, cbNodes, result);
            break;
        case 174:
            result = reduceNode(node.propertyName, cbNode, result);
            result = reduceNode(node.name, cbNode, result);
            result = reduceNode(node.initializer, cbNode, result);
            break;
        case 175:
            result = reduceNodes(node.elements, cbNodes, result);
            break;
        case 176:
            result = reduceNodes(node.properties, cbNodes, result);
            break;
        case 177:
            result = reduceNode(node.expression, cbNode, result);
            result = reduceNode(node.name, cbNode, result);
            break;
        case 178:
            result = reduceNode(node.expression, cbNode, result);
            result = reduceNode(node.argumentExpression, cbNode, result);
            break;
        case 179:
            result = reduceNode(node.expression, cbNode, result);
            result = reduceNodes(node.typeArguments, cbNodes, result);
            result = reduceNodes(node.arguments, cbNodes, result);
            break;
        case 180:
            result = reduceNode(node.expression, cbNode, result);
            result = reduceNodes(node.typeArguments, cbNodes, result);
            result = reduceNodes(node.arguments, cbNodes, result);
            break;
        case 181:
            result = reduceNode(node.tag, cbNode, result);
            result = reduceNode(node.template, cbNode, result);
            break;
        case 184:
            result = reduceNodes(node.modifiers, cbNodes, result);
            result = reduceNode(node.name, cbNode, result);
            result = reduceNodes(node.typeParameters, cbNodes, result);
            result = reduceNodes(node.parameters, cbNodes, result);
            result = reduceNode(node.type, cbNode, result);
            result = reduceNode(node.body, cbNode, result);
            break;
        case 185:
            result = reduceNodes(node.modifiers, cbNodes, result);
            result = reduceNodes(node.typeParameters, cbNodes, result);
            result = reduceNodes(node.parameters, cbNodes, result);
            result = reduceNode(node.type, cbNode, result);
            result = reduceNode(node.body, cbNode, result);
            break;
        case 183:
        case 186:
        case 187:
        case 188:
        case 189:
        case 195:
        case 196:
        case 201:
            result = reduceNode(node.expression, cbNode, result);
            break;
        case 190:
        case 191:
            result = reduceNode(node.operand, cbNode, result);
            break;
        case 192:
            result = reduceNode(node.left, cbNode, result);
            result = reduceNode(node.right, cbNode, result);
            break;
        case 193:
            result = reduceNode(node.condition, cbNode, result);
            result = reduceNode(node.whenTrue, cbNode, result);
            result = reduceNode(node.whenFalse, cbNode, result);
            break;
        case 194:
            result = reduceNode(node.head, cbNode, result);
            result = reduceNodes(node.templateSpans, cbNodes, result);
            break;
        case 197:
            result = reduceNodes(node.modifiers, cbNodes, result);
            result = reduceNode(node.name, cbNode, result);
            result = reduceNodes(node.typeParameters, cbNodes, result);
            result = reduceNodes(node.heritageClauses, cbNodes, result);
            result = reduceNodes(node.members, cbNodes, result);
            break;
        case 199:
            result = reduceNode(node.expression, cbNode, result);
            result = reduceNodes(node.typeArguments, cbNodes, result);
            break;
        case 202:
            result = reduceNode(node.expression, cbNode, result);
            result = reduceNode(node.literal, cbNode, result);
            break;
        case 204:
            result = reduceNodes(node.statements, cbNodes, result);
            break;
        case 205:
            result = reduceNodes(node.modifiers, cbNodes, result);
            result = reduceNode(node.declarationList, cbNode, result);
            break;
        case 207:
            result = reduceNode(node.expression, cbNode, result);
            break;
        case 208:
            result = reduceNode(node.expression, cbNode, result);
            result = reduceNode(node.thenStatement, cbNode, result);
            result = reduceNode(node.elseStatement, cbNode, result);
            break;
        case 209:
            result = reduceNode(node.statement, cbNode, result);
            result = reduceNode(node.expression, cbNode, result);
            break;
        case 210:
        case 217:
            result = reduceNode(node.expression, cbNode, result);
            result = reduceNode(node.statement, cbNode, result);
            break;
        case 211:
            result = reduceNode(node.initializer, cbNode, result);
            result = reduceNode(node.condition, cbNode, result);
            result = reduceNode(node.incrementor, cbNode, result);
            result = reduceNode(node.statement, cbNode, result);
            break;
        case 212:
        case 213:
            result = reduceNode(node.initializer, cbNode, result);
            result = reduceNode(node.expression, cbNode, result);
            result = reduceNode(node.statement, cbNode, result);
            break;
        case 216:
        case 220:
            result = reduceNode(node.expression, cbNode, result);
            break;
        case 218:
            result = reduceNode(node.expression, cbNode, result);
            result = reduceNode(node.caseBlock, cbNode, result);
            break;
        case 219:
            result = reduceNode(node.label, cbNode, result);
            result = reduceNode(node.statement, cbNode, result);
            break;
        case 221:
            result = reduceNode(node.tryBlock, cbNode, result);
            result = reduceNode(node.catchClause, cbNode, result);
            result = reduceNode(node.finallyBlock, cbNode, result);
            break;
        case 223:
            result = reduceNode(node.name, cbNode, result);
            result = reduceNode(node.type, cbNode, result);
            result = reduceNode(node.initializer, cbNode, result);
            break;
        case 224:
            result = reduceNodes(node.declarations, cbNodes, result);
            break;
        case 225:
            result = reduceNodes(node.decorators, cbNodes, result);
            result = reduceNodes(node.modifiers, cbNodes, result);
            result = reduceNode(node.name, cbNode, result);
            result = reduceNodes(node.typeParameters, cbNodes, result);
            result = reduceNodes(node.parameters, cbNodes, result);
            result = reduceNode(node.type, cbNode, result);
            result = reduceNode(node.body, cbNode, result);
            break;
        case 226:
            result = reduceNodes(node.decorators, cbNodes, result);
            result = reduceNodes(node.modifiers, cbNodes, result);
            result = reduceNode(node.name, cbNode, result);
            result = reduceNodes(node.typeParameters, cbNodes, result);
            result = reduceNodes(node.heritageClauses, cbNodes, result);
            result = reduceNodes(node.members, cbNodes, result);
            break;
        case 232:
            result = reduceNodes(node.clauses, cbNodes, result);
            break;
        case 235:
            result = reduceNodes(node.decorators, cbNodes, result);
            result = reduceNodes(node.modifiers, cbNodes, result);
            result = reduceNode(node.importClause, cbNode, result);
            result = reduceNode(node.moduleSpecifier, cbNode, result);
            break;
        case 236:
            result = reduceNode(node.name, cbNode, result);
            result = reduceNode(node.namedBindings, cbNode, result);
            break;
        case 237:
            result = reduceNode(node.name, cbNode, result);
            break;
        case 238:
        case 242:
            result = reduceNodes(node.elements, cbNodes, result);
            break;
        case 239:
        case 243:
            result = reduceNode(node.propertyName, cbNode, result);
            result = reduceNode(node.name, cbNode, result);
            break;
        case 240:
            result = ts.reduceLeft(node.decorators, cbNode, result);
            result = ts.reduceLeft(node.modifiers, cbNode, result);
            result = reduceNode(node.expression, cbNode, result);
            break;
        case 241:
            result = ts.reduceLeft(node.decorators, cbNode, result);
            result = ts.reduceLeft(node.modifiers, cbNode, result);
            result = reduceNode(node.exportClause, cbNode, result);
            result = reduceNode(node.moduleSpecifier, cbNode, result);
            break;
        case 246:
            result = reduceNode(node.openingElement, cbNode, result);
            result = ts.reduceLeft(node.children, cbNode, result);
            result = reduceNode(node.closingElement, cbNode, result);
            break;
        case 247:
        case 248:
            result = reduceNode(node.tagName, cbNode, result);
            result = reduceNodes(node.attributes, cbNodes, result);
            break;
        case 249:
            result = reduceNode(node.tagName, cbNode, result);
            break;
        case 250:
            result = reduceNode(node.name, cbNode, result);
            result = reduceNode(node.initializer, cbNode, result);
            break;
        case 251:
            result = reduceNode(node.expression, cbNode, result);
            break;
        case 252:
            result = reduceNode(node.expression, cbNode, result);
            break;
        case 253:
            result = reduceNode(node.expression, cbNode, result);
        case 254:
            result = reduceNodes(node.statements, cbNodes, result);
            break;
        case 255:
            result = reduceNodes(node.types, cbNodes, result);
            break;
        case 256:
            result = reduceNode(node.variableDeclaration, cbNode, result);
            result = reduceNode(node.block, cbNode, result);
            break;
        case 257:
            result = reduceNode(node.name, cbNode, result);
            result = reduceNode(node.initializer, cbNode, result);
            break;
        case 258:
            result = reduceNode(node.name, cbNode, result);
            result = reduceNode(node.objectAssignmentInitializer, cbNode, result);
            break;
        case 259:
            result = reduceNode(node.expression, cbNode, result);
            break;
        case 261:
            result = reduceNodes(node.statements, cbNodes, result);
            break;
        case 294:
            result = reduceNode(node.expression, cbNode, result);
            break;
        default:
            var edgeTraversalPath = nodeEdgeTraversalMap[kind];
            if (edgeTraversalPath) {
                for (var _i = 0, edgeTraversalPath_1 = edgeTraversalPath; _i < edgeTraversalPath_1.length; _i++) {
                    var edge = edgeTraversalPath_1[_i];
                    var value = node[edge.name];
                    if (value !== undefined) {
                        result = ts.isArray(value)
                            ? reduceNodes(value, cbNodes, result)
                            : cbNode(result, value);
                    }
                }
            }
            break;
    }
    return result;
}
ts.reduceEachChild = reduceEachChild;
function visitNode(node, visitor, test, optional, lift, parenthesize, parentNode) {
    if (node === undefined || visitor === undefined) {
        return node;
    }
    aggregateTransformFlags(node);
    var visited = visitor(node);
    if (visited === node) {
        return node;
    }
    var visitedNode;
    if (visited === undefined) {
        if (!optional) {
            Debug.failNotOptional();
        }
        return undefined;
    }
    else if (ts.isArray(visited)) {
        visitedNode = (lift || extractSingleNode)(visited);
    }
    else {
        visitedNode = visited;
    }
    if (parenthesize !== undefined) {
        visitedNode = parenthesize(visitedNode, parentNode);
    }
    Debug.assertNode(visitedNode, test);
    aggregateTransformFlags(visitedNode);
    return visitedNode;
}
ts.visitNode = visitNode;
function visitNodes(nodes, visitor, test, start, count, parenthesize, parentNode) {
    if (nodes === undefined) {
        return undefined;
    }
    var updated;
    var length = nodes.length;
    if (start === undefined || start < 0) {
        start = 0;
    }
    if (count === undefined || count > length - start) {
        count = length - start;
    }
    if (start > 0 || count < length) {
        updated = ts.createNodeArray([], undefined, nodes.hasTrailingComma && start + count === length);
    }
    for (var i = 0; i < count; i++) {
        var node = nodes[i + start];
        aggregateTransformFlags(node);
        var visited = node !== undefined ? visitor(node) : undefined;
        if (updated !== undefined || visited === undefined || visited !== node) {
            if (updated === undefined) {
                updated = ts.createNodeArray(nodes.slice(0, i), nodes, nodes.hasTrailingComma);
            }
            if (visited) {
                if (ts.isArray(visited)) {
                    for (var _i = 0, visited_1 = visited; _i < visited_1.length; _i++) {
                        var visitedNode = visited_1[_i];
                        visitedNode = parenthesize
                            ? parenthesize(visitedNode, parentNode)
                            : visitedNode;
                        Debug.assertNode(visitedNode, test);
                        aggregateTransformFlags(visitedNode);
                        updated.push(visitedNode);
                    }
                }
                else {
                    var visitedNode = parenthesize
                        ? parenthesize(visited, parentNode)
                        : visited;
                    Debug.assertNode(visitedNode, test);
                    aggregateTransformFlags(visitedNode);
                    updated.push(visitedNode);
                }
            }
        }
    }
    return updated || nodes;
}
ts.visitNodes = visitNodes;
function visitLexicalEnvironment(statements, visitor, context, start, ensureUseStrict) {
    context.startLexicalEnvironment();
    statements = visitNodes(statements, visitor, ts.isStatement, start);
    if (ensureUseStrict && !ts.startsWithUseStrict(statements)) {
        statements = ts.createNodeArray([ts.createStatement(ts.createLiteral("use strict"))].concat(statements), statements);
    }
    var declarations = context.endLexicalEnvironment();
    return ts.createNodeArray(ts.concatenate(statements, declarations), statements);
}
ts.visitLexicalEnvironment = visitLexicalEnvironment;
function visitParameterList(nodes, visitor, context) {
    context.startLexicalEnvironment();
    var updated = visitNodes(nodes, visitor, ts.isParameterDeclaration);
    context.suspendLexicalEnvironment();
    return updated;
}
ts.visitParameterList = visitParameterList;
function visitFunctionBody(node, visitor, context) {
    context.resumeLexicalEnvironment();
    var updated = visitNode(node, visitor, ts.isConciseBody);
    var declarations = context.endLexicalEnvironment();
    if (ts.some(declarations)) {
        var block = ts.convertToFunctionBody(updated);
        var statements = mergeLexicalEnvironment(block.statements, declarations);
        return ts.updateBlock(block, statements);
    }
    return updated;
}
ts.visitFunctionBody = visitFunctionBody;
function visitEachChild(node, visitor, context) {
    if (node === undefined) {
        return undefined;
    }
    var kind = node.kind;
    if ((kind > 0 && kind <= 140)) {
        return node;
    }
    if ((kind >= 156 && kind <= 171)) {
        return node;
    }
    switch (node.kind) {
        case 203:
        case 206:
        case 198:
        case 222:
            return node;
        case 142:
            return ts.updateComputedPropertyName(node, visitNode(node.expression, visitor, ts.isExpression));
        case 144:
            return ts.updateParameter(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), node.dotDotDotToken, visitNode(node.name, visitor, ts.isBindingName), visitNode(node.type, visitor, ts.isTypeNode, true), visitNode(node.initializer, visitor, ts.isExpression, true));
        case 147:
            return ts.updateProperty(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNode(node.type, visitor, ts.isTypeNode, true), visitNode(node.initializer, visitor, ts.isExpression, true));
        case 149:
            return ts.updateMethod(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
        case 150:
            return ts.updateConstructor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitParameterList(node.parameters, visitor, context), visitFunctionBody(node.body, visitor, context));
        case 151:
            return ts.updateGetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
        case 152:
            return ts.updateSetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context), visitFunctionBody(node.body, visitor, context));
        case 172:
            return ts.updateObjectBindingPattern(node, visitNodes(node.elements, visitor, ts.isBindingElement));
        case 173:
            return ts.updateArrayBindingPattern(node, visitNodes(node.elements, visitor, ts.isArrayBindingElement));
        case 174:
            return ts.updateBindingElement(node, node.dotDotDotToken, visitNode(node.propertyName, visitor, ts.isPropertyName, true), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.initializer, visitor, ts.isExpression, true));
        case 175:
            return ts.updateArrayLiteral(node, visitNodes(node.elements, visitor, ts.isExpression));
        case 176:
            return ts.updateObjectLiteral(node, visitNodes(node.properties, visitor, ts.isObjectLiteralElementLike));
        case 177:
            return ts.updatePropertyAccess(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.name, visitor, ts.isIdentifier));
        case 178:
            return ts.updateElementAccess(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.argumentExpression, visitor, ts.isExpression));
        case 179:
            return ts.updateCall(node, visitNode(node.expression, visitor, ts.isExpression), visitNodes(node.typeArguments, visitor, ts.isTypeNode), visitNodes(node.arguments, visitor, ts.isExpression));
        case 180:
            return ts.updateNew(node, visitNode(node.expression, visitor, ts.isExpression), visitNodes(node.typeArguments, visitor, ts.isTypeNode), visitNodes(node.arguments, visitor, ts.isExpression));
        case 181:
            return ts.updateTaggedTemplate(node, visitNode(node.tag, visitor, ts.isExpression), visitNode(node.template, visitor, ts.isTemplateLiteral));
        case 183:
            return ts.updateParen(node, visitNode(node.expression, visitor, ts.isExpression));
        case 184:
            return ts.updateFunctionExpression(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
        case 185:
            return ts.updateArrowFunction(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
        case 186:
            return ts.updateDelete(node, visitNode(node.expression, visitor, ts.isExpression));
        case 187:
            return ts.updateTypeOf(node, visitNode(node.expression, visitor, ts.isExpression));
        case 188:
            return ts.updateVoid(node, visitNode(node.expression, visitor, ts.isExpression));
        case 189:
            return ts.updateAwait(node, visitNode(node.expression, visitor, ts.isExpression));
        case 192:
            return ts.updateBinary(node, visitNode(node.left, visitor, ts.isExpression), visitNode(node.right, visitor, ts.isExpression));
        case 190:
            return ts.updatePrefix(node, visitNode(node.operand, visitor, ts.isExpression));
        case 191:
            return ts.updatePostfix(node, visitNode(node.operand, visitor, ts.isExpression));
        case 193:
            return ts.updateConditional(node, visitNode(node.condition, visitor, ts.isExpression), visitNode(node.whenTrue, visitor, ts.isExpression), visitNode(node.whenFalse, visitor, ts.isExpression));
        case 194:
            return ts.updateTemplateExpression(node, visitNode(node.head, visitor, ts.isTemplateHead), visitNodes(node.templateSpans, visitor, ts.isTemplateSpan));
        case 195:
            return ts.updateYield(node, visitNode(node.expression, visitor, ts.isExpression));
        case 196:
            return ts.updateSpread(node, visitNode(node.expression, visitor, ts.isExpression));
        case 197:
            return ts.updateClassExpression(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier, true), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), visitNodes(node.members, visitor, ts.isClassElement));
        case 199:
            return ts.updateExpressionWithTypeArguments(node, visitNodes(node.typeArguments, visitor, ts.isTypeNode), visitNode(node.expression, visitor, ts.isExpression));
        case 202:
            return ts.updateTemplateSpan(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.literal, visitor, ts.isTemplateMiddleOrTemplateTail));
        case 204:
            return ts.updateBlock(node, visitNodes(node.statements, visitor, ts.isStatement));
        case 205:
            return ts.updateVariableStatement(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.declarationList, visitor, ts.isVariableDeclarationList));
        case 207:
            return ts.updateStatement(node, visitNode(node.expression, visitor, ts.isExpression));
        case 208:
            return ts.updateIf(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.thenStatement, visitor, ts.isStatement, false, liftToBlock), visitNode(node.elseStatement, visitor, ts.isStatement, true, liftToBlock));
        case 209:
            return ts.updateDo(node, visitNode(node.statement, visitor, ts.isStatement, false, liftToBlock), visitNode(node.expression, visitor, ts.isExpression));
        case 210:
            return ts.updateWhile(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.statement, visitor, ts.isStatement, false, liftToBlock));
        case 211:
            return ts.updateFor(node, visitNode(node.initializer, visitor, ts.isForInitializer), visitNode(node.condition, visitor, ts.isExpression), visitNode(node.incrementor, visitor, ts.isExpression), visitNode(node.statement, visitor, ts.isStatement, false, liftToBlock));
        case 212:
            return ts.updateForIn(node, visitNode(node.initializer, visitor, ts.isForInitializer), visitNode(node.expression, visitor, ts.isExpression), visitNode(node.statement, visitor, ts.isStatement, false, liftToBlock));
        case 213:
            return ts.updateForOf(node, visitNode(node.initializer, visitor, ts.isForInitializer), visitNode(node.expression, visitor, ts.isExpression), visitNode(node.statement, visitor, ts.isStatement, false, liftToBlock));
        case 214:
            return ts.updateContinue(node, visitNode(node.label, visitor, ts.isIdentifier, true));
        case 215:
            return ts.updateBreak(node, visitNode(node.label, visitor, ts.isIdentifier, true));
        case 216:
            return ts.updateReturn(node, visitNode(node.expression, visitor, ts.isExpression, true));
        case 217:
            return ts.updateWith(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.statement, visitor, ts.isStatement, false, liftToBlock));
        case 218:
            return ts.updateSwitch(node, visitNode(node.expression, visitor, ts.isExpression), visitNode(node.caseBlock, visitor, ts.isCaseBlock));
        case 219:
            return ts.updateLabel(node, visitNode(node.label, visitor, ts.isIdentifier), visitNode(node.statement, visitor, ts.isStatement, false, liftToBlock));
        case 220:
            return ts.updateThrow(node, visitNode(node.expression, visitor, ts.isExpression));
        case 221:
            return ts.updateTry(node, visitNode(node.tryBlock, visitor, ts.isBlock), visitNode(node.catchClause, visitor, ts.isCatchClause, true), visitNode(node.finallyBlock, visitor, ts.isBlock, true));
        case 223:
            return ts.updateVariableDeclaration(node, visitNode(node.name, visitor, ts.isBindingName), visitNode(node.type, visitor, ts.isTypeNode, true), visitNode(node.initializer, visitor, ts.isExpression, true));
        case 224:
            return ts.updateVariableDeclarationList(node, visitNodes(node.declarations, visitor, ts.isVariableDeclaration));
        case 225:
            return ts.updateFunctionDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
        case 226:
            return ts.updateClassDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier, true), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), visitNodes(node.members, visitor, ts.isClassElement));
        case 232:
            return ts.updateCaseBlock(node, visitNodes(node.clauses, visitor, ts.isCaseOrDefaultClause));
        case 235:
            return ts.updateImportDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.importClause, visitor, ts.isImportClause, true), visitNode(node.moduleSpecifier, visitor, ts.isExpression));
        case 236:
            return ts.updateImportClause(node, visitNode(node.name, visitor, ts.isIdentifier, true), visitNode(node.namedBindings, visitor, ts.isNamedImportBindings, true));
        case 237:
            return ts.updateNamespaceImport(node, visitNode(node.name, visitor, ts.isIdentifier));
        case 238:
            return ts.updateNamedImports(node, visitNodes(node.elements, visitor, ts.isImportSpecifier));
        case 239:
            return ts.updateImportSpecifier(node, visitNode(node.propertyName, visitor, ts.isIdentifier, true), visitNode(node.name, visitor, ts.isIdentifier));
        case 240:
            return ts.updateExportAssignment(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.expression, visitor, ts.isExpression));
        case 241:
            return ts.updateExportDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.exportClause, visitor, ts.isNamedExports, true), visitNode(node.moduleSpecifier, visitor, ts.isExpression, true));
        case 242:
            return ts.updateNamedExports(node, visitNodes(node.elements, visitor, ts.isExportSpecifier));
        case 243:
            return ts.updateExportSpecifier(node, visitNode(node.propertyName, visitor, ts.isIdentifier, true), visitNode(node.name, visitor, ts.isIdentifier));
        case 246:
            return ts.updateJsxElement(node, visitNode(node.openingElement, visitor, ts.isJsxOpeningElement), visitNodes(node.children, visitor, ts.isJsxChild), visitNode(node.closingElement, visitor, ts.isJsxClosingElement));
        case 247:
            return ts.updateJsxSelfClosingElement(node, visitNode(node.tagName, visitor, ts.isJsxTagNameExpression), visitNodes(node.attributes, visitor, ts.isJsxAttributeLike));
        case 248:
            return ts.updateJsxOpeningElement(node, visitNode(node.tagName, visitor, ts.isJsxTagNameExpression), visitNodes(node.attributes, visitor, ts.isJsxAttributeLike));
        case 249:
            return ts.updateJsxClosingElement(node, visitNode(node.tagName, visitor, ts.isJsxTagNameExpression));
        case 250:
            return ts.updateJsxAttribute(node, visitNode(node.name, visitor, ts.isIdentifier), visitNode(node.initializer, visitor, ts.isStringLiteralOrJsxExpression));
        case 251:
            return ts.updateJsxSpreadAttribute(node, visitNode(node.expression, visitor, ts.isExpression));
        case 252:
            return ts.updateJsxExpression(node, visitNode(node.expression, visitor, ts.isExpression));
        case 253:
            return ts.updateCaseClause(node, visitNode(node.expression, visitor, ts.isExpression), visitNodes(node.statements, visitor, ts.isStatement));
        case 254:
            return ts.updateDefaultClause(node, visitNodes(node.statements, visitor, ts.isStatement));
        case 255:
            return ts.updateHeritageClause(node, visitNodes(node.types, visitor, ts.isExpressionWithTypeArguments));
        case 256:
            return ts.updateCatchClause(node, visitNode(node.variableDeclaration, visitor, ts.isVariableDeclaration), visitNode(node.block, visitor, ts.isBlock));
        case 257:
            return ts.updatePropertyAssignment(node, visitNode(node.name, visitor, ts.isPropertyName), visitNode(node.initializer, visitor, ts.isExpression));
        case 258:
            return ts.updateShorthandPropertyAssignment(node, visitNode(node.name, visitor, ts.isIdentifier), visitNode(node.objectAssignmentInitializer, visitor, ts.isExpression));
        case 259:
            return ts.updateSpreadAssignment(node, visitNode(node.expression, visitor, ts.isExpression));
        case 261:
            return ts.updateSourceFileNode(node, visitLexicalEnvironment(node.statements, visitor, context));
        case 294:
            return ts.updatePartiallyEmittedExpression(node, visitNode(node.expression, visitor, ts.isExpression));
        default:
            var updated = void 0;
            var edgeTraversalPath = nodeEdgeTraversalMap[kind];
            if (edgeTraversalPath) {
                for (var _i = 0, edgeTraversalPath_2 = edgeTraversalPath; _i < edgeTraversalPath_2.length; _i++) {
                    var edge = edgeTraversalPath_2[_i];
                    var value = node[edge.name];
                    if (value !== undefined) {
                        var visited = ts.isArray(value)
                            ? visitNodes(value, visitor, edge.test, 0, value.length, edge.parenthesize, node)
                            : visitNode(value, visitor, edge.test, edge.optional, edge.lift, edge.parenthesize, node);
                        if (updated !== undefined || visited !== value) {
                            if (updated === undefined) {
                                updated = ts.getMutableClone(node);
                            }
                            if (visited !== value) {
                                updated[edge.name] = visited;
                            }
                        }
                    }
                }
            }
            return updated ? ts.updateNode(updated, node) : node;
    }
}
ts.visitEachChild = visitEachChild;
function mergeLexicalEnvironment(statements, declarations) {
    if (!ts.some(declarations)) {
        return statements;
    }
    return ts.isNodeArray(statements)
        ? ts.createNodeArray(ts.concatenate(statements, declarations), statements)
        : ts.addRange(statements, declarations);
}
ts.mergeLexicalEnvironment = mergeLexicalEnvironment;
function mergeFunctionBodyLexicalEnvironment(body, declarations) {
    if (body && declarations !== undefined && declarations.length > 0) {
        if (ts.isBlock(body)) {
            return ts.updateBlock(body, ts.createNodeArray(ts.concatenate(body.statements, declarations), body.statements));
        }
        else {
            return ts.createBlock(ts.createNodeArray([ts.createReturn(body, body)].concat(declarations), body), body, true);
        }
    }
    return body;
}
ts.mergeFunctionBodyLexicalEnvironment = mergeFunctionBodyLexicalEnvironment;
function liftToBlock(nodes) {
    Debug.assert(ts.every(nodes, ts.isStatement), "Cannot lift nodes to a Block.");
    return ts.singleOrUndefined(nodes) || ts.createBlock(nodes);
}
ts.liftToBlock = liftToBlock;
function extractSingleNode(nodes) {
    Debug.assert(nodes.length <= 1, "Too many nodes written to output.");
    return ts.singleOrUndefined(nodes);
}
function aggregateTransformFlags(node) {
    aggregateTransformFlagsForNode(node);
    return node;
}
ts.aggregateTransformFlags = aggregateTransformFlags;
function aggregateTransformFlagsForNode(node) {
    if (node === undefined) {
        return 0;
    }
    if (node.transformFlags & 536870912) {
        return node.transformFlags & ~ts.getTransformFlagsSubtreeExclusions(node.kind);
    }
    var subtreeFlags = aggregateTransformFlagsForSubtree(node);
    return ts.computeTransformFlagsForNode(node, subtreeFlags);
}
function aggregateTransformFlagsForNodeArray(nodes) {
    if (nodes === undefined) {
        return 0;
    }
    var subtreeFlags = 0;
    var nodeArrayFlags = 0;
    for (var _i = 0, nodes_3 = nodes; _i < nodes_3.length; _i++) {
        var node = nodes_3[_i];
        subtreeFlags |= aggregateTransformFlagsForNode(node);
        nodeArrayFlags |= node.transformFlags & ~536870912;
    }
    nodes.transformFlags = nodeArrayFlags | 536870912;
    return subtreeFlags;
}
function aggregateTransformFlagsForSubtree(node) {
    if (ts.hasModifier(node, 2) || (ts.isTypeNode(node) && node.kind !== 199)) {
        return 0;
    }
    return reduceEachChild(node, 0, aggregateTransformFlagsForChildNode, aggregateTransformFlagsForChildNodes);
}
function aggregateTransformFlagsForChildNode(transformFlags, node) {
    return transformFlags | aggregateTransformFlagsForNode(node);
}
function aggregateTransformFlagsForChildNodes(transformFlags, nodes) {
    return transformFlags | aggregateTransformFlagsForNodeArray(nodes);
}
var Debug;
(function (Debug) {
    Debug.failNotOptional = Debug.shouldAssert(1)
        ? function (message) { return Debug.assert(false, message || "Node not optional."); }
        : ts.noop;
    Debug.failBadSyntaxKind = Debug.shouldAssert(1)
        ? function (node, message) { return Debug.assert(false, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was unexpected."; }); }
        : ts.noop;
    Debug.assertEachNode = Debug.shouldAssert(1)
        ? function (nodes, test, message) { return Debug.assert(test === undefined || ts.every(nodes, test), message || "Unexpected node.", function () { return "Node array did not pass test '" + getFunctionName(test) + "'."; }); }
        : ts.noop;
    Debug.assertNode = Debug.shouldAssert(1)
        ? function (node, test, message) { return Debug.assert(test === undefined || test(node), message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }); }
        : ts.noop;
    Debug.assertOptionalNode = Debug.shouldAssert(1)
        ? function (node, test, message) { return Debug.assert(test === undefined || node === undefined || test(node), message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }); }
        : ts.noop;
    Debug.assertOptionalToken = Debug.shouldAssert(1)
        ? function (node, kind, message) { return Debug.assert(kind === undefined || node === undefined || node.kind === kind, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was not a '" + ts.formatSyntaxKind(kind) + "' token."; }); }
        : ts.noop;
    Debug.assertMissingNode = Debug.shouldAssert(1)
        ? function (node, message) { return Debug.assert(node === undefined, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was unexpected'."; }); }
        : ts.noop;
    function getFunctionName(func) {
        if (typeof func !== "function") {
            return "";
        }
        else if (func.hasOwnProperty("name")) {
            return func.name;
        }
        else {
            var text = Function.prototype.toString.call(func);
            var match = /^function\s+([\w\$]+)\s*\(/.exec(text);
            return match ? match[1] : "";
        }
    }
})(Debug = ts.Debug || (ts.Debug = {}));
var _a;

})(ts || (ts = {})); var ts; (function (ts) {

function flattenDestructuringAssignment(node, visitor, context, level, needsValue, createAssignmentCallback) {
    var location = node;
    var value;
    if (ts.isDestructuringAssignment(node)) {
        value = node.right;
        while (ts.isEmptyObjectLiteralOrArrayLiteral(node.left)) {
            if (ts.isDestructuringAssignment(value)) {
                location = node = value;
                value = node.right;
            }
            else {
                return value;
            }
        }
    }
    var expressions;
    var flattenContext = {
        context: context,
        level: level,
        hoistTempVariables: true,
        emitExpression: emitExpression,
        emitBindingOrAssignment: emitBindingOrAssignment,
        createArrayBindingOrAssignmentPattern: makeArrayAssignmentPattern,
        createObjectBindingOrAssignmentPattern: makeObjectAssignmentPattern,
        createArrayBindingOrAssignmentElement: makeAssignmentElement,
        visitor: visitor
    };
    if (value) {
        value = ts.visitNode(value, visitor, ts.isExpression);
        if (needsValue) {
            value = ensureIdentifier(flattenContext, value, true, location);
        }
        else if (ts.nodeIsSynthesized(node)) {
            location = value;
        }
    }
    flattenBindingOrAssignmentElement(flattenContext, node, value, location, ts.isDestructuringAssignment(node));
    if (value && needsValue) {
        if (!ts.some(expressions)) {
            return value;
        }
        expressions.push(value);
    }
    return ts.aggregateTransformFlags(ts.inlineExpressions(expressions)) || ts.createOmittedExpression();
    function emitExpression(expression) {
        ts.setEmitFlags(expression, 64);
        ts.aggregateTransformFlags(expression);
        expressions = ts.append(expressions, expression);
    }
    function emitBindingOrAssignment(target, value, location, original) {
        ts.Debug.assertNode(target, createAssignmentCallback ? ts.isIdentifier : ts.isExpression);
        var expression = createAssignmentCallback
            ? createAssignmentCallback(target, value, location)
            : ts.createAssignment(ts.visitNode(target, visitor, ts.isExpression), value, location);
        expression.original = original;
        emitExpression(expression);
    }
}
ts.flattenDestructuringAssignment = flattenDestructuringAssignment;
function flattenDestructuringBinding(node, visitor, context, level, rval, hoistTempVariables, skipInitializer) {
    var pendingExpressions;
    var pendingDeclarations = [];
    var declarations = [];
    var flattenContext = {
        context: context,
        level: level,
        hoistTempVariables: hoistTempVariables,
        emitExpression: emitExpression,
        emitBindingOrAssignment: emitBindingOrAssignment,
        createArrayBindingOrAssignmentPattern: makeArrayBindingPattern,
        createObjectBindingOrAssignmentPattern: makeObjectBindingPattern,
        createArrayBindingOrAssignmentElement: makeBindingElement,
        visitor: visitor
    };
    flattenBindingOrAssignmentElement(flattenContext, node, rval, node, skipInitializer);
    if (pendingExpressions) {
        var temp = ts.createTempVariable(undefined);
        if (hoistTempVariables) {
            var value = ts.inlineExpressions(pendingExpressions);
            pendingExpressions = undefined;
            emitBindingOrAssignment(temp, value, undefined, undefined);
        }
        else {
            context.hoistVariableDeclaration(temp);
            var pendingDeclaration = ts.lastOrUndefined(pendingDeclarations);
            pendingDeclaration.pendingExpressions = ts.append(pendingDeclaration.pendingExpressions, ts.createAssignment(temp, pendingDeclaration.value));
            ts.addRange(pendingDeclaration.pendingExpressions, pendingExpressions);
            pendingDeclaration.value = temp;
        }
    }
    for (var _i = 0, pendingDeclarations_1 = pendingDeclarations; _i < pendingDeclarations_1.length; _i++) {
        var _a = pendingDeclarations_1[_i], pendingExpressions_1 = _a.pendingExpressions, name_30 = _a.name, value = _a.value, location_2 = _a.location, original = _a.original;
        var variable = ts.createVariableDeclaration(name_30, undefined, pendingExpressions_1 ? ts.inlineExpressions(ts.append(pendingExpressions_1, value)) : value, location_2);
        variable.original = original;
        if (ts.isIdentifier(name_30)) {
            ts.setEmitFlags(variable, 64);
        }
        ts.aggregateTransformFlags(variable);
        declarations.push(variable);
    }
    return declarations;
    function emitExpression(value) {
        pendingExpressions = ts.append(pendingExpressions, value);
    }
    function emitBindingOrAssignment(target, value, location, original) {
        ts.Debug.assertNode(target, ts.isBindingName);
        if (pendingExpressions) {
            value = ts.inlineExpressions(ts.append(pendingExpressions, value));
            pendingExpressions = undefined;
        }
        pendingDeclarations.push({ pendingExpressions: pendingExpressions, name: target, value: value, location: location, original: original });
    }
}
ts.flattenDestructuringBinding = flattenDestructuringBinding;
function flattenBindingOrAssignmentElement(flattenContext, element, value, location, skipInitializer) {
    if (!skipInitializer) {
        var initializer = ts.visitNode(ts.getInitializerOfBindingOrAssignmentElement(element), flattenContext.visitor, ts.isExpression);
        if (initializer) {
            value = value ? createDefaultValueCheck(flattenContext, value, initializer, location) : initializer;
        }
        else if (!value) {
            value = ts.createVoidZero();
        }
    }
    var bindingTarget = ts.getTargetOfBindingOrAssignmentElement(element);
    if (ts.isObjectBindingOrAssignmentPattern(bindingTarget)) {
        flattenObjectBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
    }
    else if (ts.isArrayBindingOrAssignmentPattern(bindingTarget)) {
        flattenArrayBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
    }
    else {
        flattenContext.emitBindingOrAssignment(bindingTarget, value, location, element);
    }
}
function flattenObjectBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
    var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
    var numElements = elements.length;
    if (numElements !== 1) {
        var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
        value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
    }
    var bindingElements;
    var computedTempVariables;
    for (var i = 0; i < numElements; i++) {
        var element = elements[i];
        if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
            var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(element);
            if (flattenContext.level >= 1
                && !(element.transformFlags & (524288 | 1048576))
                && !(ts.getTargetOfBindingOrAssignmentElement(element).transformFlags & (524288 | 1048576))
                && !ts.isComputedPropertyName(propertyName)) {
                bindingElements = ts.append(bindingElements, element);
            }
            else {
                if (bindingElements) {
                    flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
                    bindingElements = undefined;
                }
                var rhsValue = createDestructuringPropertyAccess(flattenContext, value, propertyName);
                if (ts.isComputedPropertyName(propertyName)) {
                    computedTempVariables = ts.append(computedTempVariables, rhsValue.argumentExpression);
                }
                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
            }
        }
        else if (i === numElements - 1) {
            if (bindingElements) {
                flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
                bindingElements = undefined;
            }
            var rhsValue = createRestCall(flattenContext.context, value, elements, computedTempVariables, pattern);
            flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
        }
    }
    if (bindingElements) {
        flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
    }
}
function flattenArrayBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
    var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
    var numElements = elements.length;
    if (numElements !== 1 && (flattenContext.level < 1 || numElements === 0)) {
        var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
        value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
    }
    var bindingElements;
    var restContainingElements;
    for (var i = 0; i < numElements; i++) {
        var element = elements[i];
        if (flattenContext.level >= 1) {
            if (element.transformFlags & 1048576) {
                var temp = ts.createTempVariable(undefined);
                if (flattenContext.hoistTempVariables) {
                    flattenContext.context.hoistVariableDeclaration(temp);
                }
                restContainingElements = ts.append(restContainingElements, [temp, element]);
                bindingElements = ts.append(bindingElements, flattenContext.createArrayBindingOrAssignmentElement(temp));
            }
            else {
                bindingElements = ts.append(bindingElements, element);
            }
        }
        else if (ts.isOmittedExpression(element)) {
            continue;
        }
        else if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
            var rhsValue = ts.createElementAccess(value, i);
            flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
        }
        else if (i === numElements - 1) {
            var rhsValue = ts.createArraySlice(value, i);
            flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
        }
    }
    if (bindingElements) {
        flattenContext.emitBindingOrAssignment(flattenContext.createArrayBindingOrAssignmentPattern(bindingElements), value, location, pattern);
    }
    if (restContainingElements) {
        for (var _i = 0, restContainingElements_1 = restContainingElements; _i < restContainingElements_1.length; _i++) {
            var _a = restContainingElements_1[_i], id = _a[0], element = _a[1];
            flattenBindingOrAssignmentElement(flattenContext, element, id, element);
        }
    }
}
function createDefaultValueCheck(flattenContext, value, defaultValue, location) {
    value = ensureIdentifier(flattenContext, value, true, location);
    return ts.createConditional(ts.createTypeCheck(value, "undefined"), defaultValue, value);
}
function createDestructuringPropertyAccess(flattenContext, value, propertyName) {
    if (ts.isComputedPropertyName(propertyName)) {
        var argumentExpression = ensureIdentifier(flattenContext, propertyName.expression, false, propertyName);
        return ts.createElementAccess(value, argumentExpression);
    }
    else if (ts.isStringOrNumericLiteral(propertyName)) {
        var argumentExpression = ts.getSynthesizedClone(propertyName);
        argumentExpression.text = ts.unescapeIdentifier(argumentExpression.text);
        return ts.createElementAccess(value, argumentExpression);
    }
    else {
        var name_31 = ts.createIdentifier(ts.unescapeIdentifier(propertyName.text));
        return ts.createPropertyAccess(value, name_31);
    }
}
function ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location) {
    if (ts.isIdentifier(value) && reuseIdentifierExpressions) {
        return value;
    }
    else {
        var temp = ts.createTempVariable(undefined);
        if (flattenContext.hoistTempVariables) {
            flattenContext.context.hoistVariableDeclaration(temp);
            flattenContext.emitExpression(ts.createAssignment(temp, value, location));
        }
        else {
            flattenContext.emitBindingOrAssignment(temp, value, location, undefined);
        }
        return temp;
    }
}
function makeArrayBindingPattern(elements) {
    ts.Debug.assertEachNode(elements, ts.isArrayBindingElement);
    return ts.createArrayBindingPattern(elements);
}
function makeArrayAssignmentPattern(elements) {
    return ts.createArrayLiteral(ts.map(elements, ts.convertToArrayAssignmentElement));
}
function makeObjectBindingPattern(elements) {
    ts.Debug.assertEachNode(elements, ts.isBindingElement);
    return ts.createObjectBindingPattern(elements);
}
function makeObjectAssignmentPattern(elements) {
    return ts.createObjectLiteral(ts.map(elements, ts.convertToObjectAssignmentElement));
}
function makeBindingElement(name) {
    return ts.createBindingElement(undefined, undefined, name);
}
function makeAssignmentElement(name) {
    return name;
}
var restHelper = {
    name: "typescript:rest",
    scoped: false,
    text: "\n            var __rest = (this && this.__rest) || function (s, e) {\n                var t = {};\n                for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\n                    t[p] = s[p];\n                if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\n                    for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) if (e.indexOf(p[i]) < 0)\n                        t[p[i]] = s[p[i]];\n                return t;\n            };"
};
function createRestCall(context, value, elements, computedTempVariables, location) {
    context.requestEmitHelper(restHelper);
    var propertyNames = [];
    var computedTempVariableOffset = 0;
    for (var i = 0; i < elements.length - 1; i++) {
        var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(elements[i]);
        if (propertyName) {
            if (ts.isComputedPropertyName(propertyName)) {
                var temp = computedTempVariables[computedTempVariableOffset];
                computedTempVariableOffset++;
                propertyNames.push(ts.createConditional(ts.createTypeCheck(temp, "symbol"), temp, ts.createAdd(temp, ts.createLiteral(""))));
            }
            else {
                propertyNames.push(ts.createLiteral(propertyName));
            }
        }
    }
    return ts.createCall(ts.getHelperName("__rest"), undefined, [value, ts.createArrayLiteral(propertyNames, location)]);
}

})(ts || (ts = {})); var ts; (function (ts) {

var USE_NEW_TYPE_METADATA_FORMAT = false;
function transformTypeScript(context) {
    var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
    var resolver = context.getEmitResolver();
    var compilerOptions = context.getCompilerOptions();
    var languageVersion = ts.getEmitScriptTarget(compilerOptions);
    var moduleKind = ts.getEmitModuleKind(compilerOptions);
    var previousOnEmitNode = context.onEmitNode;
    var previousOnSubstituteNode = context.onSubstituteNode;
    context.onEmitNode = onEmitNode;
    context.onSubstituteNode = onSubstituteNode;
    context.enableSubstitution(177);
    context.enableSubstitution(178);
    var currentSourceFile;
    var currentNamespace;
    var currentNamespaceContainerName;
    var currentScope;
    var currentScopeFirstDeclarationsOfName;
    var enabledSubstitutions;
    var classAliases;
    var applicableSubstitutions;
    return transformSourceFile;
    function transformSourceFile(node) {
        if (ts.isDeclarationFile(node)) {
            return node;
        }
        currentSourceFile = node;
        var visited = saveStateAndInvoke(node, visitSourceFile);
        ts.addEmitHelpers(visited, context.readEmitHelpers());
        currentSourceFile = undefined;
        return visited;
    }
    function saveStateAndInvoke(node, f) {
        var savedCurrentScope = currentScope;
        var savedCurrentScopeFirstDeclarationsOfName = currentScopeFirstDeclarationsOfName;
        onBeforeVisitNode(node);
        var visited = f(node);
        if (currentScope !== savedCurrentScope) {
            currentScopeFirstDeclarationsOfName = savedCurrentScopeFirstDeclarationsOfName;
        }
        currentScope = savedCurrentScope;
        return visited;
    }
    function onBeforeVisitNode(node) {
        switch (node.kind) {
            case 261:
            case 232:
            case 231:
            case 204:
                currentScope = node;
                currentScopeFirstDeclarationsOfName = undefined;
                break;
            case 226:
            case 225:
                if (ts.hasModifier(node, 2)) {
                    break;
                }
                recordEmittedDeclarationInScope(node);
                break;
        }
    }
    function visitor(node) {
        return saveStateAndInvoke(node, visitorWorker);
    }
    function visitorWorker(node) {
        if (node.transformFlags & 1) {
            return visitTypeScript(node);
        }
        else if (node.transformFlags & 2) {
            return ts.visitEachChild(node, visitor, context);
        }
        return node;
    }
    function sourceElementVisitor(node) {
        return saveStateAndInvoke(node, sourceElementVisitorWorker);
    }
    function sourceElementVisitorWorker(node) {
        switch (node.kind) {
            case 235:
                return visitImportDeclaration(node);
            case 234:
                return visitImportEqualsDeclaration(node);
            case 240:
                return visitExportAssignment(node);
            case 241:
                return visitExportDeclaration(node);
            default:
                return visitorWorker(node);
        }
    }
    function namespaceElementVisitor(node) {
        return saveStateAndInvoke(node, namespaceElementVisitorWorker);
    }
    function namespaceElementVisitorWorker(node) {
        if (node.kind === 241 ||
            node.kind === 235 ||
            node.kind === 236 ||
            (node.kind === 234 &&
                node.moduleReference.kind === 245)) {
            return undefined;
        }
        else if (node.transformFlags & 1 || ts.hasModifier(node, 1)) {
            return visitTypeScript(node);
        }
        else if (node.transformFlags & 2) {
            return ts.visitEachChild(node, visitor, context);
        }
        return node;
    }
    function classElementVisitor(node) {
        return saveStateAndInvoke(node, classElementVisitorWorker);
    }
    function classElementVisitorWorker(node) {
        switch (node.kind) {
            case 150:
                return undefined;
            case 147:
            case 155:
            case 151:
            case 152:
            case 149:
                return visitorWorker(node);
            case 203:
                return node;
            default:
                ts.Debug.failBadSyntaxKind(node);
                return undefined;
        }
    }
    function modifierVisitor(node) {
        if (ts.modifierToFlag(node.kind) & 2270) {
            return undefined;
        }
        else if (currentNamespace && node.kind === 83) {
            return undefined;
        }
        return node;
    }
    function visitTypeScript(node) {
        if (ts.hasModifier(node, 2) && ts.isStatement(node)) {
            return ts.createNotEmittedStatement(node);
        }
        switch (node.kind) {
            case 83:
            case 78:
                return currentNamespace ? undefined : node;
            case 113:
            case 111:
            case 112:
            case 116:
            case 75:
            case 123:
            case 130:
            case 162:
            case 163:
            case 161:
            case 156:
            case 143:
            case 118:
            case 121:
            case 134:
            case 132:
            case 129:
            case 104:
            case 135:
            case 159:
            case 158:
            case 160:
            case 157:
            case 164:
            case 165:
            case 166:
            case 167:
            case 168:
            case 169:
            case 170:
            case 171:
            case 155:
            case 145:
            case 228:
            case 147:
                return undefined;
            case 150:
                return visitConstructor(node);
            case 227:
                return ts.createNotEmittedStatement(node);
            case 226:
                return visitClassDeclaration(node);
            case 197:
                return visitClassExpression(node);
            case 255:
                return visitHeritageClause(node);
            case 199:
                return visitExpressionWithTypeArguments(node);
            case 149:
                return visitMethodDeclaration(node);
            case 151:
                return visitGetAccessor(node);
            case 152:
                return visitSetAccessor(node);
            case 225:
                return visitFunctionDeclaration(node);
            case 184:
                return visitFunctionExpression(node);
            case 185:
                return visitArrowFunction(node);
            case 144:
                return visitParameter(node);
            case 183:
                return visitParenthesizedExpression(node);
            case 182:
            case 200:
                return visitAssertionExpression(node);
            case 179:
                return visitCallExpression(node);
            case 180:
                return visitNewExpression(node);
            case 201:
                return visitNonNullExpression(node);
            case 229:
                return visitEnumDeclaration(node);
            case 205:
                return visitVariableStatement(node);
            case 223:
                return visitVariableDeclaration(node);
            case 230:
                return visitModuleDeclaration(node);
            case 234:
                return visitImportEqualsDeclaration(node);
            default:
                ts.Debug.failBadSyntaxKind(node);
                return ts.visitEachChild(node, visitor, context);
        }
    }
    function visitSourceFile(node) {
        var alwaysStrict = compilerOptions.alwaysStrict && !(ts.isExternalModule(node) && moduleKind === ts.ModuleKind.ES2015);
        return ts.updateSourceFileNode(node, ts.visitLexicalEnvironment(node.statements, sourceElementVisitor, context, 0, alwaysStrict));
    }
    function shouldEmitDecorateCallForClass(node) {
        if (node.decorators && node.decorators.length > 0) {
            return true;
        }
        var constructor = ts.getFirstConstructorWithBody(node);
        if (constructor) {
            return ts.forEach(constructor.parameters, shouldEmitDecorateCallForParameter);
        }
        return false;
    }
    function shouldEmitDecorateCallForParameter(parameter) {
        return parameter.decorators !== undefined && parameter.decorators.length > 0;
    }
    function visitClassDeclaration(node) {
        var staticProperties = getInitializedProperties(node, true);
        var hasExtendsClause = ts.getClassExtendsHeritageClauseElement(node) !== undefined;
        var isDecoratedClass = shouldEmitDecorateCallForClass(node);
        var name = node.name;
        if (!name && staticProperties.length > 0) {
            name = ts.getGeneratedNameForNode(node);
        }
        var classStatement = isDecoratedClass
            ? createClassDeclarationHeadWithDecorators(node, name, hasExtendsClause)
            : createClassDeclarationHeadWithoutDecorators(node, name, hasExtendsClause, staticProperties.length > 0);
        var statements = [classStatement];
        if (staticProperties.length) {
            addInitializedPropertyStatements(statements, staticProperties, ts.getLocalName(node));
        }
        addClassElementDecorationStatements(statements, node, false);
        addClassElementDecorationStatements(statements, node, true);
        addConstructorDecorationStatement(statements, node);
        if (isNamespaceExport(node)) {
            addExportMemberAssignment(statements, node);
        }
        else if (isDecoratedClass) {
            if (isDefaultExternalModuleExport(node)) {
                statements.push(ts.createExportDefault(ts.getLocalName(node, false, true)));
            }
            else if (isNamedExternalModuleExport(node)) {
                statements.push(ts.createExternalModuleExport(ts.getLocalName(node, false, true)));
            }
        }
        if (statements.length > 1) {
            statements.push(ts.createEndOfDeclarationMarker(node));
            ts.setEmitFlags(classStatement, ts.getEmitFlags(classStatement) | 2097152);
        }
        return ts.singleOrMany(statements);
    }
    function createClassDeclarationHeadWithoutDecorators(node, name, hasExtendsClause, hasStaticProperties) {
        var classDeclaration = ts.createClassDeclaration(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), name, undefined, ts.visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), transformClassMembers(node, hasExtendsClause), node);
        var emitFlags = ts.getEmitFlags(node);
        if (hasStaticProperties) {
            emitFlags |= 32;
        }
        ts.setOriginalNode(classDeclaration, node);
        ts.setEmitFlags(classDeclaration, emitFlags);
        return classDeclaration;
    }
    function createClassDeclarationHeadWithDecorators(node, name, hasExtendsClause) {
        var location = ts.moveRangePastDecorators(node);
        var classAlias = getClassAliasIfNeeded(node);
        var declName = ts.getLocalName(node, false, true);
        var heritageClauses = ts.visitNodes(node.heritageClauses, visitor, ts.isHeritageClause);
        var members = transformClassMembers(node, hasExtendsClause);
        var classExpression = ts.createClassExpression(undefined, name, undefined, heritageClauses, members, location);
        ts.setOriginalNode(classExpression, node);
        var statement = ts.createLetStatement(declName, classAlias ? ts.createAssignment(classAlias, classExpression) : classExpression, location);
        ts.setOriginalNode(statement, node);
        ts.setCommentRange(statement, node);
        return statement;
    }
    function visitClassExpression(node) {
        var staticProperties = getInitializedProperties(node, true);
        var heritageClauses = ts.visitNodes(node.heritageClauses, visitor, ts.isHeritageClause);
        var members = transformClassMembers(node, ts.some(heritageClauses, function (c) { return c.token === 84; }));
        var classExpression = ts.setOriginalNode(ts.createClassExpression(undefined, node.name, undefined, heritageClauses, members, node), node);
        if (staticProperties.length > 0) {
            var expressions = [];
            var temp = ts.createTempVariable(hoistVariableDeclaration);
            if (resolver.getNodeCheckFlags(node) & 8388608) {
                enableSubstitutionForClassAliases();
                classAliases[ts.getOriginalNodeId(node)] = ts.getSynthesizedClone(temp);
            }
            ts.setEmitFlags(classExpression, 32768 | ts.getEmitFlags(classExpression));
            expressions.push(ts.startOnNewLine(ts.createAssignment(temp, classExpression)));
            ts.addRange(expressions, generateInitializedPropertyExpressions(staticProperties, temp));
            expressions.push(ts.startOnNewLine(temp));
            return ts.inlineExpressions(expressions);
        }
        return classExpression;
    }
    function transformClassMembers(node, hasExtendsClause) {
        var members = [];
        var constructor = transformConstructor(node, hasExtendsClause);
        if (constructor) {
            members.push(constructor);
        }
        ts.addRange(members, ts.visitNodes(node.members, classElementVisitor, ts.isClassElement));
        return ts.createNodeArray(members, node.members);
    }
    function transformConstructor(node, hasExtendsClause) {
        var hasInstancePropertyWithInitializer = ts.forEach(node.members, isInstanceInitializedProperty);
        var hasParameterPropertyAssignments = node.transformFlags & 262144;
        var constructor = ts.getFirstConstructorWithBody(node);
        if (!hasInstancePropertyWithInitializer && !hasParameterPropertyAssignments) {
            return ts.visitEachChild(constructor, visitor, context);
        }
        var parameters = transformConstructorParameters(constructor);
        var body = transformConstructorBody(node, constructor, hasExtendsClause);
        return ts.startOnNewLine(ts.setOriginalNode(ts.createConstructor(undefined, undefined, parameters, body, constructor || node), constructor));
    }
    function transformConstructorParameters(constructor) {
        return ts.visitParameterList(constructor && constructor.parameters, visitor, context)
            || [];
    }
    function transformConstructorBody(node, constructor, hasExtendsClause) {
        var statements = [];
        var indexOfFirstStatement = 0;
        resumeLexicalEnvironment();
        if (constructor) {
            indexOfFirstStatement = addPrologueDirectivesAndInitialSuperCall(constructor, statements);
            var propertyAssignments = getParametersWithPropertyAssignments(constructor);
            ts.addRange(statements, ts.map(propertyAssignments, transformParameterWithPropertyAssignment));
        }
        else if (hasExtendsClause) {
            statements.push(ts.createStatement(ts.createCall(ts.createSuper(), undefined, [ts.createSpread(ts.createIdentifier("arguments"))])));
        }
        var properties = getInitializedProperties(node, false);
        addInitializedPropertyStatements(statements, properties, ts.createThis());
        if (constructor) {
            ts.addRange(statements, ts.visitNodes(constructor.body.statements, visitor, ts.isStatement, indexOfFirstStatement));
        }
        ts.addRange(statements, endLexicalEnvironment());
        return ts.createBlock(ts.createNodeArray(statements, constructor ? constructor.body.statements : node.members), constructor ? constructor.body : undefined, true);
    }
    function addPrologueDirectivesAndInitialSuperCall(ctor, result) {
        if (ctor.body) {
            var statements = ctor.body.statements;
            var index = ts.addPrologueDirectives(result, statements, false, visitor);
            if (index === statements.length) {
                return index;
            }
            var statement = statements[index];
            if (statement.kind === 207 && ts.isSuperCall(statement.expression)) {
                result.push(ts.visitNode(statement, visitor, ts.isStatement));
                return index + 1;
            }
            return index;
        }
        return 0;
    }
    function getParametersWithPropertyAssignments(node) {
        return ts.filter(node.parameters, isParameterWithPropertyAssignment);
    }
    function isParameterWithPropertyAssignment(parameter) {
        return ts.hasModifier(parameter, 92)
            && ts.isIdentifier(parameter.name);
    }
    function transformParameterWithPropertyAssignment(node) {
        ts.Debug.assert(ts.isIdentifier(node.name));
        var name = node.name;
        var propertyName = ts.getMutableClone(name);
        ts.setEmitFlags(propertyName, 1536 | 48);
        var localName = ts.getMutableClone(name);
        ts.setEmitFlags(localName, 1536);
        return ts.startOnNewLine(ts.createStatement(ts.createAssignment(ts.createPropertyAccess(ts.createThis(), propertyName, node.name), localName), ts.moveRangePos(node, -1)));
    }
    function getInitializedProperties(node, isStatic) {
        return ts.filter(node.members, isStatic ? isStaticInitializedProperty : isInstanceInitializedProperty);
    }
    function isStaticInitializedProperty(member) {
        return isInitializedProperty(member, true);
    }
    function isInstanceInitializedProperty(member) {
        return isInitializedProperty(member, false);
    }
    function isInitializedProperty(member, isStatic) {
        return member.kind === 147
            && isStatic === ts.hasModifier(member, 32)
            && member.initializer !== undefined;
    }
    function addInitializedPropertyStatements(statements, properties, receiver) {
        for (var _i = 0, properties_8 = properties; _i < properties_8.length; _i++) {
            var property = properties_8[_i];
            var statement = ts.createStatement(transformInitializedProperty(property, receiver));
            ts.setSourceMapRange(statement, ts.moveRangePastModifiers(property));
            ts.setCommentRange(statement, property);
            statements.push(statement);
        }
    }
    function generateInitializedPropertyExpressions(properties, receiver) {
        var expressions = [];
        for (var _i = 0, properties_9 = properties; _i < properties_9.length; _i++) {
            var property = properties_9[_i];
            var expression = transformInitializedProperty(property, receiver);
            expression.startsOnNewLine = true;
            ts.setSourceMapRange(expression, ts.moveRangePastModifiers(property));
            ts.setCommentRange(expression, property);
            expressions.push(expression);
        }
        return expressions;
    }
    function transformInitializedProperty(property, receiver) {
        var propertyName = visitPropertyNameOfClassElement(property);
        var initializer = ts.visitNode(property.initializer, visitor, ts.isExpression);
        var memberAccess = ts.createMemberAccessForPropertyName(receiver, propertyName, propertyName);
        return ts.createAssignment(memberAccess, initializer);
    }
    function getDecoratedClassElements(node, isStatic) {
        return ts.filter(node.members, isStatic ? isStaticDecoratedClassElement : isInstanceDecoratedClassElement);
    }
    function isStaticDecoratedClassElement(member) {
        return isDecoratedClassElement(member, true);
    }
    function isInstanceDecoratedClassElement(member) {
        return isDecoratedClassElement(member, false);
    }
    function isDecoratedClassElement(member, isStatic) {
        return ts.nodeOrChildIsDecorated(member)
            && isStatic === ts.hasModifier(member, 32);
    }
    function getDecoratorsOfParameters(node) {
        var decorators;
        if (node) {
            var parameters = node.parameters;
            for (var i = 0; i < parameters.length; i++) {
                var parameter = parameters[i];
                if (decorators || parameter.decorators) {
                    if (!decorators) {
                        decorators = new Array(parameters.length);
                    }
                    decorators[i] = parameter.decorators;
                }
            }
        }
        return decorators;
    }
    function getAllDecoratorsOfConstructor(node) {
        var decorators = node.decorators;
        var parameters = getDecoratorsOfParameters(ts.getFirstConstructorWithBody(node));
        if (!decorators && !parameters) {
            return undefined;
        }
        return {
            decorators: decorators,
            parameters: parameters
        };
    }
    function getAllDecoratorsOfClassElement(node, member) {
        switch (member.kind) {
            case 151:
            case 152:
                return getAllDecoratorsOfAccessors(node, member);
            case 149:
                return getAllDecoratorsOfMethod(member);
            case 147:
                return getAllDecoratorsOfProperty(member);
            default:
                return undefined;
        }
    }
    function getAllDecoratorsOfAccessors(node, accessor) {
        if (!accessor.body) {
            return undefined;
        }
        var _a = ts.getAllAccessorDeclarations(node.members, accessor), firstAccessor = _a.firstAccessor, secondAccessor = _a.secondAccessor, setAccessor = _a.setAccessor;
        var firstAccessorWithDecorators = firstAccessor.decorators ? firstAccessor : secondAccessor && secondAccessor.decorators ? secondAccessor : undefined;
        if (!firstAccessorWithDecorators || accessor !== firstAccessorWithDecorators) {
            return undefined;
        }
        var decorators = firstAccessorWithDecorators.decorators;
        var parameters = getDecoratorsOfParameters(setAccessor);
        if (!decorators && !parameters) {
            return undefined;
        }
        return { decorators: decorators, parameters: parameters };
    }
    function getAllDecoratorsOfMethod(method) {
        if (!method.body) {
            return undefined;
        }
        var decorators = method.decorators;
        var parameters = getDecoratorsOfParameters(method);
        if (!decorators && !parameters) {
            return undefined;
        }
        return { decorators: decorators, parameters: parameters };
    }
    function getAllDecoratorsOfProperty(property) {
        var decorators = property.decorators;
        if (!decorators) {
            return undefined;
        }
        return { decorators: decorators };
    }
    function transformAllDecoratorsOfDeclaration(node, container, allDecorators) {
        if (!allDecorators) {
            return undefined;
        }
        var decoratorExpressions = [];
        ts.addRange(decoratorExpressions, ts.map(allDecorators.decorators, transformDecorator));
        ts.addRange(decoratorExpressions, ts.flatMap(allDecorators.parameters, transformDecoratorsOfParameter));
        addTypeMetadata(node, container, decoratorExpressions);
        return decoratorExpressions;
    }
    function addClassElementDecorationStatements(statements, node, isStatic) {
        ts.addRange(statements, ts.map(generateClassElementDecorationExpressions(node, isStatic), expressionToStatement));
    }
    function generateClassElementDecorationExpressions(node, isStatic) {
        var members = getDecoratedClassElements(node, isStatic);
        var expressions;
        for (var _i = 0, members_2 = members; _i < members_2.length; _i++) {
            var member = members_2[_i];
            var expression = generateClassElementDecorationExpression(node, member);
            if (expression) {
                if (!expressions) {
                    expressions = [expression];
                }
                else {
                    expressions.push(expression);
                }
            }
        }
        return expressions;
    }
    function generateClassElementDecorationExpression(node, member) {
        var allDecorators = getAllDecoratorsOfClassElement(node, member);
        var decoratorExpressions = transformAllDecoratorsOfDeclaration(member, node, allDecorators);
        if (!decoratorExpressions) {
            return undefined;
        }
        var prefix = getClassMemberPrefix(node, member);
        var memberName = getExpressionForPropertyName(member, true);
        var descriptor = languageVersion > 0
            ? member.kind === 147
                ? ts.createVoidZero()
                : ts.createNull()
            : undefined;
        var helper = createDecorateHelper(context, decoratorExpressions, prefix, memberName, descriptor, ts.moveRangePastDecorators(member));
        ts.setEmitFlags(helper, 1536);
        return helper;
    }
    function addConstructorDecorationStatement(statements, node) {
        var expression = generateConstructorDecorationExpression(node);
        if (expression) {
            statements.push(ts.setOriginalNode(ts.createStatement(expression), node));
        }
    }
    function generateConstructorDecorationExpression(node) {
        var allDecorators = getAllDecoratorsOfConstructor(node);
        var decoratorExpressions = transformAllDecoratorsOfDeclaration(node, node, allDecorators);
        if (!decoratorExpressions) {
            return undefined;
        }
        var classAlias = classAliases && classAliases[ts.getOriginalNodeId(node)];
        var localName = ts.getLocalName(node, false, true);
        var decorate = createDecorateHelper(context, decoratorExpressions, localName);
        var expression = ts.createAssignment(localName, classAlias ? ts.createAssignment(classAlias, decorate) : decorate);
        ts.setEmitFlags(expression, 1536);
        ts.setSourceMapRange(expression, ts.moveRangePastDecorators(node));
        return expression;
    }
    function transformDecorator(decorator) {
        return ts.visitNode(decorator.expression, visitor, ts.isExpression);
    }
    function transformDecoratorsOfParameter(decorators, parameterOffset) {
        var expressions;
        if (decorators) {
            expressions = [];
            for (var _i = 0, decorators_1 = decorators; _i < decorators_1.length; _i++) {
                var decorator = decorators_1[_i];
                var helper = createParamHelper(context, transformDecorator(decorator), parameterOffset, decorator.expression);
                ts.setEmitFlags(helper, 1536);
                expressions.push(helper);
            }
        }
        return expressions;
    }
    function addTypeMetadata(node, container, decoratorExpressions) {
        if (USE_NEW_TYPE_METADATA_FORMAT) {
            addNewTypeMetadata(node, container, decoratorExpressions);
        }
        else {
            addOldTypeMetadata(node, container, decoratorExpressions);
        }
    }
    function addOldTypeMetadata(node, container, decoratorExpressions) {
        if (compilerOptions.emitDecoratorMetadata) {
            if (shouldAddTypeMetadata(node)) {
                decoratorExpressions.push(createMetadataHelper(context, "design:type", serializeTypeOfNode(node)));
            }
            if (shouldAddParamTypesMetadata(node)) {
                decoratorExpressions.push(createMetadataHelper(context, "design:paramtypes", serializeParameterTypesOfNode(node, container)));
            }
            if (shouldAddReturnTypeMetadata(node)) {
                decoratorExpressions.push(createMetadataHelper(context, "design:returntype", serializeReturnTypeOfNode(node)));
            }
        }
    }
    function addNewTypeMetadata(node, container, decoratorExpressions) {
        if (compilerOptions.emitDecoratorMetadata) {
            var properties = void 0;
            if (shouldAddTypeMetadata(node)) {
                (properties || (properties = [])).push(ts.createPropertyAssignment("type", ts.createArrowFunction(undefined, undefined, [], undefined, ts.createToken(35), serializeTypeOfNode(node))));
            }
            if (shouldAddParamTypesMetadata(node)) {
                (properties || (properties = [])).push(ts.createPropertyAssignment("paramTypes", ts.createArrowFunction(undefined, undefined, [], undefined, ts.createToken(35), serializeParameterTypesOfNode(node, container))));
            }
            if (shouldAddReturnTypeMetadata(node)) {
                (properties || (properties = [])).push(ts.createPropertyAssignment("returnType", ts.createArrowFunction(undefined, undefined, [], undefined, ts.createToken(35), serializeReturnTypeOfNode(node))));
            }
            if (properties) {
                decoratorExpressions.push(createMetadataHelper(context, "design:typeinfo", ts.createObjectLiteral(properties, undefined, true)));
            }
        }
    }
    function shouldAddTypeMetadata(node) {
        var kind = node.kind;
        return kind === 149
            || kind === 151
            || kind === 152
            || kind === 147;
    }
    function shouldAddReturnTypeMetadata(node) {
        return node.kind === 149;
    }
    function shouldAddParamTypesMetadata(node) {
        switch (node.kind) {
            case 226:
            case 197:
                return ts.getFirstConstructorWithBody(node) !== undefined;
            case 149:
            case 151:
            case 152:
                return true;
        }
        return false;
    }
    function serializeTypeOfNode(node) {
        switch (node.kind) {
            case 147:
            case 144:
            case 151:
                return serializeTypeNode(node.type);
            case 152:
                return serializeTypeNode(ts.getSetAccessorTypeAnnotationNode(node));
            case 226:
            case 197:
            case 149:
                return ts.createIdentifier("Function");
            default:
                return ts.createVoidZero();
        }
    }
    function serializeParameterTypesOfNode(node, container) {
        var valueDeclaration = ts.isClassLike(node)
            ? ts.getFirstConstructorWithBody(node)
            : ts.isFunctionLike(node) && ts.nodeIsPresent(node.body)
                ? node
                : undefined;
        var expressions = [];
        if (valueDeclaration) {
            var parameters = getParametersOfDecoratedDeclaration(valueDeclaration, container);
            var numParameters = parameters.length;
            for (var i = 0; i < numParameters; i++) {
                var parameter = parameters[i];
                if (i === 0 && ts.isIdentifier(parameter.name) && parameter.name.text === "this") {
                    continue;
                }
                if (parameter.dotDotDotToken) {
                    expressions.push(serializeTypeNode(ts.getRestParameterElementType(parameter.type)));
                }
                else {
                    expressions.push(serializeTypeOfNode(parameter));
                }
            }
        }
        return ts.createArrayLiteral(expressions);
    }
    function getParametersOfDecoratedDeclaration(node, container) {
        if (container && node.kind === 151) {
            var setAccessor = ts.getAllAccessorDeclarations(container.members, node).setAccessor;
            if (setAccessor) {
                return setAccessor.parameters;
            }
        }
        return node.parameters;
    }
    function serializeReturnTypeOfNode(node) {
        if (ts.isFunctionLike(node) && node.type) {
            return serializeTypeNode(node.type);
        }
        else if (ts.isAsyncFunctionLike(node)) {
            return ts.createIdentifier("Promise");
        }
        return ts.createVoidZero();
    }
    function serializeTypeNode(node) {
        if (node === undefined) {
            return ts.createIdentifier("Object");
        }
        switch (node.kind) {
            case 104:
            case 137:
            case 94:
            case 129:
                return ts.createVoidZero();
            case 166:
                return serializeTypeNode(node.type);
            case 158:
            case 159:
                return ts.createIdentifier("Function");
            case 162:
            case 163:
                return ts.createIdentifier("Array");
            case 156:
            case 121:
                return ts.createIdentifier("Boolean");
            case 134:
                return ts.createIdentifier("String");
            case 171:
                switch (node.literal.kind) {
                    case 9:
                        return ts.createIdentifier("String");
                    case 8:
                        return ts.createIdentifier("Number");
                    case 100:
                    case 85:
                        return ts.createIdentifier("Boolean");
                    default:
                        ts.Debug.failBadSyntaxKind(node.literal);
                        break;
                }
                break;
            case 132:
                return ts.createIdentifier("Number");
            case 135:
                return languageVersion < 2
                    ? getGlobalSymbolNameWithFallback()
                    : ts.createIdentifier("Symbol");
            case 157:
                return serializeTypeReferenceNode(node);
            case 165:
            case 164:
                return serializeUnionOrIntersectionType(node);
            case 160:
            case 168:
            case 169:
            case 170:
            case 161:
            case 118:
            case 167:
                break;
            default:
                ts.Debug.failBadSyntaxKind(node);
                break;
        }
        return ts.createIdentifier("Object");
    }
    function serializeUnionOrIntersectionType(node) {
        var serializedUnion;
        for (var _i = 0, _a = node.types; _i < _a.length; _i++) {
            var typeNode = _a[_i];
            var serializedIndividual = serializeTypeNode(typeNode);
            if (ts.isVoidExpression(serializedIndividual)) {
                if (!serializedUnion) {
                    serializedUnion = serializedIndividual;
                }
            }
            else if (ts.isIdentifier(serializedIndividual) && serializedIndividual.text === "Object") {
                return serializedIndividual;
            }
            else if (serializedUnion && !ts.isVoidExpression(serializedUnion)) {
                if (!ts.isIdentifier(serializedUnion) ||
                    !ts.isIdentifier(serializedIndividual) ||
                    serializedUnion.text !== serializedIndividual.text) {
                    return ts.createIdentifier("Object");
                }
            }
            else {
                serializedUnion = serializedIndividual;
            }
        }
        return serializedUnion;
    }
    function serializeTypeReferenceNode(node) {
        switch (resolver.getTypeReferenceSerializationKind(node.typeName, currentScope)) {
            case ts.TypeReferenceSerializationKind.Unknown:
                var serialized = serializeEntityNameAsExpression(node.typeName, true);
                var temp = ts.createTempVariable(hoistVariableDeclaration);
                return ts.createLogicalOr(ts.createLogicalAnd(ts.createTypeCheck(ts.createAssignment(temp, serialized), "function"), temp), ts.createIdentifier("Object"));
            case ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue:
                return serializeEntityNameAsExpression(node.typeName, false);
            case ts.TypeReferenceSerializationKind.VoidNullableOrNeverType:
                return ts.createVoidZero();
            case ts.TypeReferenceSerializationKind.BooleanType:
                return ts.createIdentifier("Boolean");
            case ts.TypeReferenceSerializationKind.NumberLikeType:
                return ts.createIdentifier("Number");
            case ts.TypeReferenceSerializationKind.StringLikeType:
                return ts.createIdentifier("String");
            case ts.TypeReferenceSerializationKind.ArrayLikeType:
                return ts.createIdentifier("Array");
            case ts.TypeReferenceSerializationKind.ESSymbolType:
                return languageVersion < 2
                    ? getGlobalSymbolNameWithFallback()
                    : ts.createIdentifier("Symbol");
            case ts.TypeReferenceSerializationKind.TypeWithCallSignature:
                return ts.createIdentifier("Function");
            case ts.TypeReferenceSerializationKind.Promise:
                return ts.createIdentifier("Promise");
            case ts.TypeReferenceSerializationKind.ObjectType:
            default:
                return ts.createIdentifier("Object");
        }
    }
    function serializeEntityNameAsExpression(node, useFallback) {
        switch (node.kind) {
            case 70:
                var name_32 = ts.getMutableClone(node);
                name_32.flags &= ~8;
                name_32.original = undefined;
                name_32.parent = currentScope;
                if (useFallback) {
                    return ts.createLogicalAnd(ts.createStrictInequality(ts.createTypeOf(name_32), ts.createLiteral("undefined")), name_32);
                }
                return name_32;
            case 141:
                return serializeQualifiedNameAsExpression(node, useFallback);
        }
    }
    function serializeQualifiedNameAsExpression(node, useFallback) {
        var left;
        if (node.left.kind === 70) {
            left = serializeEntityNameAsExpression(node.left, useFallback);
        }
        else if (useFallback) {
            var temp = ts.createTempVariable(hoistVariableDeclaration);
            left = ts.createLogicalAnd(ts.createAssignment(temp, serializeEntityNameAsExpression(node.left, true)), temp);
        }
        else {
            left = serializeEntityNameAsExpression(node.left, false);
        }
        return ts.createPropertyAccess(left, node.right);
    }
    function getGlobalSymbolNameWithFallback() {
        return ts.createConditional(ts.createTypeCheck(ts.createIdentifier("Symbol"), "function"), ts.createIdentifier("Symbol"), ts.createIdentifier("Object"));
    }
    function getExpressionForPropertyName(member, generateNameForComputedPropertyName) {
        var name = member.name;
        if (ts.isComputedPropertyName(name)) {
            return generateNameForComputedPropertyName
                ? ts.getGeneratedNameForNode(name)
                : name.expression;
        }
        else if (ts.isIdentifier(name)) {
            return ts.createLiteral(ts.unescapeIdentifier(name.text));
        }
        else {
            return ts.getSynthesizedClone(name);
        }
    }
    function visitPropertyNameOfClassElement(member) {
        var name = member.name;
        if (ts.isComputedPropertyName(name)) {
            var expression = ts.visitNode(name.expression, visitor, ts.isExpression);
            if (member.decorators) {
                var generatedName = ts.getGeneratedNameForNode(name);
                hoistVariableDeclaration(generatedName);
                expression = ts.createAssignment(generatedName, expression);
            }
            return ts.setOriginalNode(ts.createComputedPropertyName(expression, name), name);
        }
        else {
            return name;
        }
    }
    function visitHeritageClause(node) {
        if (node.token === 84) {
            var types = ts.visitNodes(node.types, visitor, ts.isExpressionWithTypeArguments, 0, 1);
            return ts.createHeritageClause(84, types, node);
        }
        return undefined;
    }
    function visitExpressionWithTypeArguments(node) {
        var expression = ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression);
        return ts.createExpressionWithTypeArguments(undefined, expression, node);
    }
    function shouldEmitFunctionLikeDeclaration(node) {
        return !ts.nodeIsMissing(node.body);
    }
    function visitConstructor(node) {
        if (!shouldEmitFunctionLikeDeclaration(node)) {
            return undefined;
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitMethodDeclaration(node) {
        if (!shouldEmitFunctionLikeDeclaration(node)) {
            return undefined;
        }
        var updated = ts.updateMethod(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context));
        if (updated !== node) {
            ts.setCommentRange(updated, node);
            ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
        }
        return updated;
    }
    function shouldEmitAccessorDeclaration(node) {
        return !(ts.nodeIsMissing(node.body) && ts.hasModifier(node, 128));
    }
    function visitGetAccessor(node) {
        if (!shouldEmitAccessorDeclaration(node)) {
            return undefined;
        }
        var updated = ts.updateGetAccessor(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
        if (updated !== node) {
            ts.setCommentRange(updated, node);
            ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
        }
        return updated;
    }
    function visitSetAccessor(node) {
        if (!shouldEmitAccessorDeclaration(node)) {
            return undefined;
        }
        var updated = ts.updateSetAccessor(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
        if (updated !== node) {
            ts.setCommentRange(updated, node);
            ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
        }
        return updated;
    }
    function visitFunctionDeclaration(node) {
        if (!shouldEmitFunctionLikeDeclaration(node)) {
            return ts.createNotEmittedStatement(node);
        }
        var updated = ts.updateFunctionDeclaration(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
        if (isNamespaceExport(node)) {
            var statements = [updated];
            addExportMemberAssignment(statements, node);
            return statements;
        }
        return updated;
    }
    function visitFunctionExpression(node) {
        if (ts.nodeIsMissing(node.body)) {
            return ts.createOmittedExpression();
        }
        var updated = ts.updateFunctionExpression(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context));
        return updated;
    }
    function visitArrowFunction(node) {
        var updated = ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context));
        return updated;
    }
    function visitParameter(node) {
        if (ts.parameterIsThisKeyword(node)) {
            return undefined;
        }
        var parameter = ts.createParameter(undefined, undefined, node.dotDotDotToken, ts.visitNode(node.name, visitor, ts.isBindingName), undefined, undefined, ts.visitNode(node.initializer, visitor, ts.isExpression), ts.moveRangePastModifiers(node));
        ts.setOriginalNode(parameter, node);
        ts.setCommentRange(parameter, node);
        ts.setSourceMapRange(parameter, ts.moveRangePastModifiers(node));
        ts.setEmitFlags(parameter.name, 32);
        return parameter;
    }
    function visitVariableStatement(node) {
        if (isNamespaceExport(node)) {
            var variables = ts.getInitializedVariables(node.declarationList);
            if (variables.length === 0) {
                return undefined;
            }
            return ts.createStatement(ts.inlineExpressions(ts.map(variables, transformInitializedVariable)), node);
        }
        else {
            return ts.visitEachChild(node, visitor, context);
        }
    }
    function transformInitializedVariable(node) {
        var name = node.name;
        if (ts.isBindingPattern(name)) {
            return ts.flattenDestructuringAssignment(node, visitor, context, 0, false, createNamespaceExportExpression);
        }
        else {
            return ts.createAssignment(getNamespaceMemberNameWithSourceMapsAndWithoutComments(name), ts.visitNode(node.initializer, visitor, ts.isExpression), node);
        }
    }
    function visitVariableDeclaration(node) {
        return ts.updateVariableDeclaration(node, ts.visitNode(node.name, visitor, ts.isBindingName), undefined, ts.visitNode(node.initializer, visitor, ts.isExpression));
    }
    function visitParenthesizedExpression(node) {
        var innerExpression = ts.skipOuterExpressions(node.expression, ~2);
        if (ts.isAssertionExpression(innerExpression)) {
            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
            return ts.createPartiallyEmittedExpression(expression, node);
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitAssertionExpression(node) {
        var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
        return ts.createPartiallyEmittedExpression(expression, node);
    }
    function visitNonNullExpression(node) {
        var expression = ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression);
        return ts.createPartiallyEmittedExpression(expression, node);
    }
    function visitCallExpression(node) {
        return ts.updateCall(node, ts.visitNode(node.expression, visitor, ts.isExpression), undefined, ts.visitNodes(node.arguments, visitor, ts.isExpression));
    }
    function visitNewExpression(node) {
        return ts.updateNew(node, ts.visitNode(node.expression, visitor, ts.isExpression), undefined, ts.visitNodes(node.arguments, visitor, ts.isExpression));
    }
    function shouldEmitEnumDeclaration(node) {
        return !ts.isConst(node)
            || compilerOptions.preserveConstEnums
            || compilerOptions.isolatedModules;
    }
    function visitEnumDeclaration(node) {
        if (!shouldEmitEnumDeclaration(node)) {
            return undefined;
        }
        var statements = [];
        var emitFlags = 2;
        if (addVarForEnumOrModuleDeclaration(statements, node)) {
            if (moduleKind !== ts.ModuleKind.System || currentScope !== currentSourceFile) {
                emitFlags |= 512;
            }
        }
        var parameterName = getNamespaceParameterName(node);
        var containerName = getNamespaceContainerName(node);
        var exportName = ts.hasModifier(node, 1)
            ? ts.getExternalModuleOrNamespaceExportName(currentNamespaceContainerName, node, false, true)
            : ts.getLocalName(node, false, true);
        var moduleArg = ts.createLogicalOr(exportName, ts.createAssignment(exportName, ts.createObjectLiteral()));
        if (hasNamespaceQualifiedExportName(node)) {
            var localName = ts.getLocalName(node, false, true);
            moduleArg = ts.createAssignment(localName, moduleArg);
        }
        var enumStatement = ts.createStatement(ts.createCall(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, parameterName)], undefined, transformEnumBody(node, containerName)), undefined, [moduleArg]), node);
        ts.setOriginalNode(enumStatement, node);
        ts.setEmitFlags(enumStatement, emitFlags);
        statements.push(enumStatement);
        statements.push(ts.createEndOfDeclarationMarker(node));
        return statements;
    }
    function transformEnumBody(node, localName) {
        var savedCurrentNamespaceLocalName = currentNamespaceContainerName;
        currentNamespaceContainerName = localName;
        var statements = [];
        startLexicalEnvironment();
        ts.addRange(statements, ts.map(node.members, transformEnumMember));
        ts.addRange(statements, endLexicalEnvironment());
        currentNamespaceContainerName = savedCurrentNamespaceLocalName;
        return ts.createBlock(ts.createNodeArray(statements, node.members), undefined, true);
    }
    function transformEnumMember(member) {
        var name = getExpressionForPropertyName(member, false);
        return ts.createStatement(ts.createAssignment(ts.createElementAccess(currentNamespaceContainerName, ts.createAssignment(ts.createElementAccess(currentNamespaceContainerName, name), transformEnumMemberDeclarationValue(member))), name, member), member);
    }
    function transformEnumMemberDeclarationValue(member) {
        var value = resolver.getConstantValue(member);
        if (value !== undefined) {
            return ts.createLiteral(value);
        }
        else {
            enableSubstitutionForNonQualifiedEnumMembers();
            if (member.initializer) {
                return ts.visitNode(member.initializer, visitor, ts.isExpression);
            }
            else {
                return ts.createVoidZero();
            }
        }
    }
    function shouldEmitModuleDeclaration(node) {
        return ts.isInstantiatedModule(node, compilerOptions.preserveConstEnums || compilerOptions.isolatedModules);
    }
    function hasNamespaceQualifiedExportName(node) {
        return isNamespaceExport(node)
            || (isExternalModuleExport(node)
                && moduleKind !== ts.ModuleKind.ES2015
                && moduleKind !== ts.ModuleKind.System);
    }
    function recordEmittedDeclarationInScope(node) {
        var name = node.symbol && node.symbol.name;
        if (name) {
            if (!currentScopeFirstDeclarationsOfName) {
                currentScopeFirstDeclarationsOfName = ts.createMap();
            }
            if (!(name in currentScopeFirstDeclarationsOfName)) {
                currentScopeFirstDeclarationsOfName[name] = node;
            }
        }
    }
    function isFirstEmittedDeclarationInScope(node) {
        if (currentScopeFirstDeclarationsOfName) {
            var name_33 = node.symbol && node.symbol.name;
            if (name_33) {
                return currentScopeFirstDeclarationsOfName[name_33] === node;
            }
        }
        return false;
    }
    function addVarForEnumOrModuleDeclaration(statements, node) {
        var statement = ts.createVariableStatement(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), [
            ts.createVariableDeclaration(ts.getLocalName(node, false, true))
        ]);
        ts.setOriginalNode(statement, node);
        recordEmittedDeclarationInScope(node);
        if (isFirstEmittedDeclarationInScope(node)) {
            if (node.kind === 229) {
                ts.setSourceMapRange(statement.declarationList, node);
            }
            else {
                ts.setSourceMapRange(statement, node);
            }
            ts.setCommentRange(statement, node);
            ts.setEmitFlags(statement, 1024 | 2097152);
            statements.push(statement);
            return true;
        }
        else {
            var mergeMarker = ts.createMergeDeclarationMarker(statement);
            ts.setEmitFlags(mergeMarker, 1536 | 2097152);
            statements.push(mergeMarker);
            return false;
        }
    }
    function visitModuleDeclaration(node) {
        if (!shouldEmitModuleDeclaration(node)) {
            return ts.createNotEmittedStatement(node);
        }
        ts.Debug.assert(ts.isIdentifier(node.name), "TypeScript module should have an Identifier name.");
        enableSubstitutionForNamespaceExports();
        var statements = [];
        var emitFlags = 2;
        if (addVarForEnumOrModuleDeclaration(statements, node)) {
            if (moduleKind !== ts.ModuleKind.System || currentScope !== currentSourceFile) {
                emitFlags |= 512;
            }
        }
        var parameterName = getNamespaceParameterName(node);
        var containerName = getNamespaceContainerName(node);
        var exportName = ts.hasModifier(node, 1)
            ? ts.getExternalModuleOrNamespaceExportName(currentNamespaceContainerName, node, false, true)
            : ts.getLocalName(node, false, true);
        var moduleArg = ts.createLogicalOr(exportName, ts.createAssignment(exportName, ts.createObjectLiteral()));
        if (hasNamespaceQualifiedExportName(node)) {
            var localName = ts.getLocalName(node, false, true);
            moduleArg = ts.createAssignment(localName, moduleArg);
        }
        var moduleStatement = ts.createStatement(ts.createCall(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, parameterName)], undefined, transformModuleBody(node, containerName)), undefined, [moduleArg]), node);
        ts.setOriginalNode(moduleStatement, node);
        ts.setEmitFlags(moduleStatement, emitFlags);
        statements.push(moduleStatement);
        statements.push(ts.createEndOfDeclarationMarker(node));
        return statements;
    }
    function transformModuleBody(node, namespaceLocalName) {
        var savedCurrentNamespaceContainerName = currentNamespaceContainerName;
        var savedCurrentNamespace = currentNamespace;
        var savedCurrentScopeFirstDeclarationsOfName = currentScopeFirstDeclarationsOfName;
        currentNamespaceContainerName = namespaceLocalName;
        currentNamespace = node;
        currentScopeFirstDeclarationsOfName = undefined;
        var statements = [];
        startLexicalEnvironment();
        var statementsLocation;
        var blockLocation;
        var body = node.body;
        if (body.kind === 231) {
            saveStateAndInvoke(body, function (body) { return ts.addRange(statements, ts.visitNodes(body.statements, namespaceElementVisitor, ts.isStatement)); });
            statementsLocation = body.statements;
            blockLocation = body;
        }
        else {
            var result = visitModuleDeclaration(body);
            if (result) {
                if (ts.isArray(result)) {
                    ts.addRange(statements, result);
                }
                else {
                    statements.push(result);
                }
            }
            var moduleBlock = getInnerMostModuleDeclarationFromDottedModule(node).body;
            statementsLocation = ts.moveRangePos(moduleBlock.statements, -1);
        }
        ts.addRange(statements, endLexicalEnvironment());
        currentNamespaceContainerName = savedCurrentNamespaceContainerName;
        currentNamespace = savedCurrentNamespace;
        currentScopeFirstDeclarationsOfName = savedCurrentScopeFirstDeclarationsOfName;
        var block = ts.createBlock(ts.createNodeArray(statements, statementsLocation), blockLocation, true);
        if (body.kind !== 231) {
            ts.setEmitFlags(block, ts.getEmitFlags(block) | 1536);
        }
        return block;
    }
    function getInnerMostModuleDeclarationFromDottedModule(moduleDeclaration) {
        if (moduleDeclaration.body.kind === 230) {
            var recursiveInnerModule = getInnerMostModuleDeclarationFromDottedModule(moduleDeclaration.body);
            return recursiveInnerModule || moduleDeclaration.body;
        }
    }
    function visitImportDeclaration(node) {
        if (!node.importClause) {
            return node;
        }
        var importClause = ts.visitNode(node.importClause, visitImportClause, ts.isImportClause, true);
        return importClause
            ? ts.updateImportDeclaration(node, undefined, undefined, importClause, node.moduleSpecifier)
            : undefined;
    }
    function visitImportClause(node) {
        var name = resolver.isReferencedAliasDeclaration(node) ? node.name : undefined;
        var namedBindings = ts.visitNode(node.namedBindings, visitNamedImportBindings, ts.isNamedImportBindings, true);
        return (name || namedBindings) ? ts.updateImportClause(node, name, namedBindings) : undefined;
    }
    function visitNamedImportBindings(node) {
        if (node.kind === 237) {
            return resolver.isReferencedAliasDeclaration(node) ? node : undefined;
        }
        else {
            var elements = ts.visitNodes(node.elements, visitImportSpecifier, ts.isImportSpecifier);
            return ts.some(elements) ? ts.updateNamedImports(node, elements) : undefined;
        }
    }
    function visitImportSpecifier(node) {
        return resolver.isReferencedAliasDeclaration(node) ? node : undefined;
    }
    function visitExportAssignment(node) {
        return resolver.isValueAliasDeclaration(node)
            ? ts.visitEachChild(node, visitor, context)
            : undefined;
    }
    function visitExportDeclaration(node) {
        if (!node.exportClause) {
            return resolver.moduleExportsSomeValue(node.moduleSpecifier) ? node : undefined;
        }
        if (!resolver.isValueAliasDeclaration(node)) {
            return undefined;
        }
        var exportClause = ts.visitNode(node.exportClause, visitNamedExports, ts.isNamedExports, true);
        return exportClause
            ? ts.updateExportDeclaration(node, undefined, undefined, exportClause, node.moduleSpecifier)
            : undefined;
    }
    function visitNamedExports(node) {
        var elements = ts.visitNodes(node.elements, visitExportSpecifier, ts.isExportSpecifier);
        return ts.some(elements) ? ts.updateNamedExports(node, elements) : undefined;
    }
    function visitExportSpecifier(node) {
        return resolver.isValueAliasDeclaration(node) ? node : undefined;
    }
    function shouldEmitImportEqualsDeclaration(node) {
        return resolver.isReferencedAliasDeclaration(node)
            || (!ts.isExternalModule(currentSourceFile)
                && resolver.isTopLevelValueImportEqualsWithEntityName(node));
    }
    function visitImportEqualsDeclaration(node) {
        if (ts.isExternalModuleImportEqualsDeclaration(node)) {
            return resolver.isReferencedAliasDeclaration(node)
                ? ts.visitEachChild(node, visitor, context)
                : undefined;
        }
        if (!shouldEmitImportEqualsDeclaration(node)) {
            return undefined;
        }
        var moduleReference = ts.createExpressionFromEntityName(node.moduleReference);
        ts.setEmitFlags(moduleReference, 1536 | 2048);
        if (isNamedExternalModuleExport(node) || !isNamespaceExport(node)) {
            return ts.setOriginalNode(ts.createVariableStatement(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), ts.createVariableDeclarationList([
                ts.setOriginalNode(ts.createVariableDeclaration(node.name, undefined, moduleReference), node)
            ]), node), node);
        }
        else {
            return ts.setOriginalNode(createNamespaceExport(node.name, moduleReference, node), node);
        }
    }
    function isNamespaceExport(node) {
        return currentNamespace !== undefined && ts.hasModifier(node, 1);
    }
    function isExternalModuleExport(node) {
        return currentNamespace === undefined && ts.hasModifier(node, 1);
    }
    function isNamedExternalModuleExport(node) {
        return isExternalModuleExport(node)
            && !ts.hasModifier(node, 512);
    }
    function isDefaultExternalModuleExport(node) {
        return isExternalModuleExport(node)
            && ts.hasModifier(node, 512);
    }
    function expressionToStatement(expression) {
        return ts.createStatement(expression, undefined);
    }
    function addExportMemberAssignment(statements, node) {
        var expression = ts.createAssignment(ts.getExternalModuleOrNamespaceExportName(currentNamespaceContainerName, node, false, true), ts.getLocalName(node));
        ts.setSourceMapRange(expression, ts.createRange(node.name.pos, node.end));
        var statement = ts.createStatement(expression);
        ts.setSourceMapRange(statement, ts.createRange(-1, node.end));
        statements.push(statement);
    }
    function createNamespaceExport(exportName, exportValue, location) {
        return ts.createStatement(ts.createAssignment(ts.getNamespaceMemberName(currentNamespaceContainerName, exportName, false, true), exportValue), location);
    }
    function createNamespaceExportExpression(exportName, exportValue, location) {
        return ts.createAssignment(getNamespaceMemberNameWithSourceMapsAndWithoutComments(exportName), exportValue, location);
    }
    function getNamespaceMemberNameWithSourceMapsAndWithoutComments(name) {
        return ts.getNamespaceMemberName(currentNamespaceContainerName, name, false, true);
    }
    function getNamespaceParameterName(node) {
        var name = ts.getGeneratedNameForNode(node);
        ts.setSourceMapRange(name, node.name);
        return name;
    }
    function getNamespaceContainerName(node) {
        return ts.getGeneratedNameForNode(node);
    }
    function getClassAliasIfNeeded(node) {
        if (resolver.getNodeCheckFlags(node) & 8388608) {
            enableSubstitutionForClassAliases();
            var classAlias = ts.createUniqueName(node.name && !ts.isGeneratedIdentifier(node.name) ? node.name.text : "default");
            classAliases[ts.getOriginalNodeId(node)] = classAlias;
            hoistVariableDeclaration(classAlias);
            return classAlias;
        }
    }
    function getClassPrototype(node) {
        return ts.createPropertyAccess(ts.getDeclarationName(node), "prototype");
    }
    function getClassMemberPrefix(node, member) {
        return ts.hasModifier(member, 32)
            ? ts.getDeclarationName(node)
            : getClassPrototype(node);
    }
    function enableSubstitutionForNonQualifiedEnumMembers() {
        if ((enabledSubstitutions & 8) === 0) {
            enabledSubstitutions |= 8;
            context.enableSubstitution(70);
        }
    }
    function enableSubstitutionForClassAliases() {
        if ((enabledSubstitutions & 1) === 0) {
            enabledSubstitutions |= 1;
            context.enableSubstitution(70);
            classAliases = ts.createMap();
        }
    }
    function enableSubstitutionForNamespaceExports() {
        if ((enabledSubstitutions & 2) === 0) {
            enabledSubstitutions |= 2;
            context.enableSubstitution(70);
            context.enableSubstitution(258);
            context.enableEmitNotification(230);
        }
    }
    function isTransformedModuleDeclaration(node) {
        return ts.getOriginalNode(node).kind === 230;
    }
    function isTransformedEnumDeclaration(node) {
        return ts.getOriginalNode(node).kind === 229;
    }
    function onEmitNode(emitContext, node, emitCallback) {
        var savedApplicableSubstitutions = applicableSubstitutions;
        if (enabledSubstitutions & 2 && isTransformedModuleDeclaration(node)) {
            applicableSubstitutions |= 2;
        }
        if (enabledSubstitutions & 8 && isTransformedEnumDeclaration(node)) {
            applicableSubstitutions |= 8;
        }
        previousOnEmitNode(emitContext, node, emitCallback);
        applicableSubstitutions = savedApplicableSubstitutions;
    }
    function onSubstituteNode(emitContext, node) {
        node = previousOnSubstituteNode(emitContext, node);
        if (emitContext === 1) {
            return substituteExpression(node);
        }
        else if (ts.isShorthandPropertyAssignment(node)) {
            return substituteShorthandPropertyAssignment(node);
        }
        return node;
    }
    function substituteShorthandPropertyAssignment(node) {
        if (enabledSubstitutions & 2) {
            var name_34 = node.name;
            var exportedName = trySubstituteNamespaceExportedName(name_34);
            if (exportedName) {
                if (node.objectAssignmentInitializer) {
                    var initializer = ts.createAssignment(exportedName, node.objectAssignmentInitializer);
                    return ts.createPropertyAssignment(name_34, initializer, node);
                }
                return ts.createPropertyAssignment(name_34, exportedName, node);
            }
        }
        return node;
    }
    function substituteExpression(node) {
        switch (node.kind) {
            case 70:
                return substituteExpressionIdentifier(node);
            case 177:
                return substitutePropertyAccessExpression(node);
            case 178:
                return substituteElementAccessExpression(node);
        }
        return node;
    }
    function substituteExpressionIdentifier(node) {
        return trySubstituteClassAlias(node)
            || trySubstituteNamespaceExportedName(node)
            || node;
    }
    function trySubstituteClassAlias(node) {
        if (enabledSubstitutions & 1) {
            if (resolver.getNodeCheckFlags(node) & 16777216) {
                var declaration = resolver.getReferencedValueDeclaration(node);
                if (declaration) {
                    var classAlias = classAliases[declaration.id];
                    if (classAlias) {
                        var clone_2 = ts.getSynthesizedClone(classAlias);
                        ts.setSourceMapRange(clone_2, node);
                        ts.setCommentRange(clone_2, node);
                        return clone_2;
                    }
                }
            }
        }
        return undefined;
    }
    function trySubstituteNamespaceExportedName(node) {
        if (enabledSubstitutions & applicableSubstitutions && !ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
            var container = resolver.getReferencedExportContainer(node, false);
            if (container && container.kind !== 261) {
                var substitute = (applicableSubstitutions & 2 && container.kind === 230) ||
                    (applicableSubstitutions & 8 && container.kind === 229);
                if (substitute) {
                    return ts.createPropertyAccess(ts.getGeneratedNameForNode(container), node, node);
                }
            }
        }
        return undefined;
    }
    function substitutePropertyAccessExpression(node) {
        return substituteConstantValue(node);
    }
    function substituteElementAccessExpression(node) {
        return substituteConstantValue(node);
    }
    function substituteConstantValue(node) {
        var constantValue = tryGetConstEnumValue(node);
        if (constantValue !== undefined) {
            var substitute = ts.createLiteral(constantValue);
            ts.setSourceMapRange(substitute, node);
            ts.setCommentRange(substitute, node);
            if (!compilerOptions.removeComments) {
                var propertyName = ts.isPropertyAccessExpression(node)
                    ? ts.declarationNameToString(node.name)
                    : ts.getTextOfNode(node.argumentExpression);
                substitute.trailingComment = " " + propertyName + " ";
            }
            ts.setConstantValue(node, constantValue);
            return substitute;
        }
        return node;
    }
    function tryGetConstEnumValue(node) {
        if (compilerOptions.isolatedModules) {
            return undefined;
        }
        return ts.isPropertyAccessExpression(node) || ts.isElementAccessExpression(node)
            ? resolver.getConstantValue(node)
            : undefined;
    }
}
ts.transformTypeScript = transformTypeScript;
var paramHelper = {
    name: "typescript:param",
    scoped: false,
    priority: 4,
    text: "\n            var __param = (this && this.__param) || function (paramIndex, decorator) {\n                return function (target, key) { decorator(target, key, paramIndex); }\n            };"
};
function createParamHelper(context, expression, parameterOffset, location) {
    context.requestEmitHelper(paramHelper);
    return ts.createCall(ts.getHelperName("__param"), undefined, [
        ts.createLiteral(parameterOffset),
        expression
    ], location);
}
var metadataHelper = {
    name: "typescript:metadata",
    scoped: false,
    priority: 3,
    text: "\n            var __metadata = (this && this.__metadata) || function (k, v) {\n                if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(k, v);\n            };"
};
function createMetadataHelper(context, metadataKey, metadataValue) {
    context.requestEmitHelper(metadataHelper);
    return ts.createCall(ts.getHelperName("__metadata"), undefined, [
        ts.createLiteral(metadataKey),
        metadataValue
    ]);
}
var decorateHelper = {
    name: "typescript:decorate",
    scoped: false,
    priority: 2,
    text: "\n            var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n                var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n                if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n                else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n                return c > 3 && r && Object.defineProperty(target, key, r), r;\n            };"
};
function createDecorateHelper(context, decoratorExpressions, target, memberName, descriptor, location) {
    context.requestEmitHelper(decorateHelper);
    var argumentsArray = [];
    argumentsArray.push(ts.createArrayLiteral(decoratorExpressions, undefined, true));
    argumentsArray.push(target);
    if (memberName) {
        argumentsArray.push(memberName);
        if (descriptor) {
            argumentsArray.push(descriptor);
        }
    }
    return ts.createCall(ts.getHelperName("__decorate"), undefined, argumentsArray, location);
}

})(ts || (ts = {})); var ts; (function (ts) {

function transformESNext(context) {
    var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
    return transformSourceFile;
    function transformSourceFile(node) {
        if (ts.isDeclarationFile(node)) {
            return node;
        }
        var visited = ts.visitEachChild(node, visitor, context);
        ts.addEmitHelpers(visited, context.readEmitHelpers());
        return visited;
    }
    function visitor(node) {
        return visitorWorker(node, false);
    }
    function visitorNoDestructuringValue(node) {
        return visitorWorker(node, true);
    }
    function visitorWorker(node, noDestructuringValue) {
        if ((node.transformFlags & 8) === 0) {
            return node;
        }
        switch (node.kind) {
            case 176:
                return visitObjectLiteralExpression(node);
            case 192:
                return visitBinaryExpression(node, noDestructuringValue);
            case 223:
                return visitVariableDeclaration(node);
            case 213:
                return visitForOfStatement(node);
            case 211:
                return visitForStatement(node);
            case 188:
                return visitVoidExpression(node);
            case 150:
                return visitConstructorDeclaration(node);
            case 149:
                return visitMethodDeclaration(node);
            case 151:
                return visitGetAccessorDeclaration(node);
            case 152:
                return visitSetAccessorDeclaration(node);
            case 225:
                return visitFunctionDeclaration(node);
            case 184:
                return visitFunctionExpression(node);
            case 185:
                return visitArrowFunction(node);
            case 144:
                return visitParameter(node);
            case 207:
                return visitExpressionStatement(node);
            case 183:
                return visitParenthesizedExpression(node, noDestructuringValue);
            default:
                return ts.visitEachChild(node, visitor, context);
        }
    }
    function chunkObjectLiteralElements(elements) {
        var chunkObject;
        var objects = [];
        for (var _i = 0, elements_3 = elements; _i < elements_3.length; _i++) {
            var e = elements_3[_i];
            if (e.kind === 259) {
                if (chunkObject) {
                    objects.push(ts.createObjectLiteral(chunkObject));
                    chunkObject = undefined;
                }
                var target = e.expression;
                objects.push(ts.visitNode(target, visitor, ts.isExpression));
            }
            else {
                if (!chunkObject) {
                    chunkObject = [];
                }
                if (e.kind === 257) {
                    var p = e;
                    chunkObject.push(ts.createPropertyAssignment(p.name, ts.visitNode(p.initializer, visitor, ts.isExpression)));
                }
                else {
                    chunkObject.push(e);
                }
            }
        }
        if (chunkObject) {
            objects.push(ts.createObjectLiteral(chunkObject));
        }
        return objects;
    }
    function visitObjectLiteralExpression(node) {
        if (node.transformFlags & 1048576) {
            var objects = chunkObjectLiteralElements(node.properties);
            if (objects.length && objects[0].kind !== 176) {
                objects.unshift(ts.createObjectLiteral());
            }
            return createAssignHelper(context, objects);
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitExpressionStatement(node) {
        return ts.visitEachChild(node, visitorNoDestructuringValue, context);
    }
    function visitParenthesizedExpression(node, noDestructuringValue) {
        return ts.visitEachChild(node, noDestructuringValue ? visitorNoDestructuringValue : visitor, context);
    }
    function visitBinaryExpression(node, noDestructuringValue) {
        if (ts.isDestructuringAssignment(node) && node.left.transformFlags & 1048576) {
            return ts.flattenDestructuringAssignment(node, visitor, context, 1, !noDestructuringValue);
        }
        else if (node.operatorToken.kind === 25) {
            return ts.updateBinary(node, ts.visitNode(node.left, visitorNoDestructuringValue, ts.isExpression), ts.visitNode(node.right, noDestructuringValue ? visitorNoDestructuringValue : visitor, ts.isExpression));
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitVariableDeclaration(node) {
        if (ts.isBindingPattern(node.name) && node.name.transformFlags & 1048576) {
            return ts.flattenDestructuringBinding(node, visitor, context, 1);
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitForStatement(node) {
        return ts.updateFor(node, ts.visitNode(node.initializer, visitorNoDestructuringValue, ts.isForInitializer), ts.visitNode(node.condition, visitor, ts.isExpression), ts.visitNode(node.incrementor, visitor, ts.isExpression), ts.visitNode(node.statement, visitor, ts.isStatement));
    }
    function visitVoidExpression(node) {
        return ts.visitEachChild(node, visitorNoDestructuringValue, context);
    }
    function visitForOfStatement(node) {
        var leadingStatements;
        var temp;
        var initializer = ts.skipParentheses(node.initializer);
        if (initializer.transformFlags & 1048576) {
            if (ts.isVariableDeclarationList(initializer)) {
                temp = ts.createTempVariable(undefined);
                var firstDeclaration = ts.firstOrUndefined(initializer.declarations);
                var declarations = ts.flattenDestructuringBinding(firstDeclaration, visitor, context, 1, temp, false, true);
                if (ts.some(declarations)) {
                    var statement = ts.createVariableStatement(undefined, ts.updateVariableDeclarationList(initializer, declarations), initializer);
                    leadingStatements = ts.append(leadingStatements, statement);
                }
            }
            else if (ts.isAssignmentPattern(initializer)) {
                temp = ts.createTempVariable(undefined);
                var expression = ts.flattenDestructuringAssignment(ts.aggregateTransformFlags(ts.createAssignment(initializer, temp, node.initializer)), visitor, context, 1);
                leadingStatements = ts.append(leadingStatements, ts.createStatement(expression, node.initializer));
            }
        }
        if (temp) {
            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
            var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
            var block = ts.isBlock(statement)
                ? ts.updateBlock(statement, ts.createNodeArray(ts.concatenate(leadingStatements, statement.statements), statement.statements))
                : ts.createBlock(ts.append(leadingStatements, statement), statement, true);
            return ts.updateForOf(node, ts.createVariableDeclarationList([
                ts.createVariableDeclaration(temp, undefined, undefined, node.initializer)
            ], node.initializer, 1), expression, block);
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitParameter(node) {
        if (node.transformFlags & 1048576) {
            return ts.updateParameter(node, undefined, undefined, node.dotDotDotToken, ts.getGeneratedNameForNode(node), undefined, ts.visitNode(node.initializer, visitor, ts.isExpression));
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitConstructorDeclaration(node) {
        return ts.updateConstructor(node, undefined, node.modifiers, ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
    }
    function visitGetAccessorDeclaration(node) {
        return ts.updateGetAccessor(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
    }
    function visitSetAccessorDeclaration(node) {
        return ts.updateSetAccessor(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
    }
    function visitMethodDeclaration(node) {
        return ts.updateMethod(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
    }
    function visitFunctionDeclaration(node) {
        return ts.updateFunctionDeclaration(node, undefined, node.modifiers, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
    }
    function visitArrowFunction(node) {
        return ts.updateArrowFunction(node, node.modifiers, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
    }
    function visitFunctionExpression(node) {
        return ts.updateFunctionExpression(node, node.modifiers, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
    }
    function transformFunctionBody(node) {
        resumeLexicalEnvironment();
        var leadingStatements;
        for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
            var parameter = _a[_i];
            if (parameter.transformFlags & 1048576) {
                var temp = ts.getGeneratedNameForNode(parameter);
                var declarations = ts.flattenDestructuringBinding(parameter, visitor, context, 1, temp, false, true);
                if (ts.some(declarations)) {
                    var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList(declarations));
                    ts.setEmitFlags(statement, 524288);
                    leadingStatements = ts.append(leadingStatements, statement);
                }
            }
        }
        var body = ts.visitNode(node.body, visitor, ts.isConciseBody);
        var trailingStatements = endLexicalEnvironment();
        if (ts.some(leadingStatements) || ts.some(trailingStatements)) {
            var block = ts.convertToFunctionBody(body, true);
            return ts.updateBlock(block, ts.createNodeArray(ts.concatenate(ts.concatenate(leadingStatements, block.statements), trailingStatements), block.statements));
        }
        return body;
    }
}
ts.transformESNext = transformESNext;
var assignHelper = {
    name: "typescript:assign",
    scoped: false,
    priority: 1,
    text: "\n            var __assign = (this && this.__assign) || Object.assign || function(t) {\n                for (var s, i = 1, n = arguments.length; i < n; i++) {\n                    s = arguments[i];\n                    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n                        t[p] = s[p];\n                }\n                return t;\n            };"
};
function createAssignHelper(context, attributesSegments) {
    context.requestEmitHelper(assignHelper);
    return ts.createCall(ts.getHelperName("__assign"), undefined, attributesSegments);
}
ts.createAssignHelper = createAssignHelper;

})(ts || (ts = {})); var ts; (function (ts) {

function transformJsx(context) {
    var compilerOptions = context.getCompilerOptions();
    var currentSourceFile;
    return transformSourceFile;
    function transformSourceFile(node) {
        if (ts.isDeclarationFile(node)) {
            return node;
        }
        currentSourceFile = node;
        var visited = ts.visitEachChild(node, visitor, context);
        ts.addEmitHelpers(visited, context.readEmitHelpers());
        currentSourceFile = undefined;
        return visited;
    }
    function visitor(node) {
        if (node.transformFlags & 4) {
            return visitorWorker(node);
        }
        else {
            return node;
        }
    }
    function visitorWorker(node) {
        switch (node.kind) {
            case 246:
                return visitJsxElement(node, false);
            case 247:
                return visitJsxSelfClosingElement(node, false);
            case 252:
                return visitJsxExpression(node);
            default:
                return ts.visitEachChild(node, visitor, context);
        }
    }
    function transformJsxChildToExpression(node) {
        switch (node.kind) {
            case 10:
                return visitJsxText(node);
            case 252:
                return visitJsxExpression(node);
            case 246:
                return visitJsxElement(node, true);
            case 247:
                return visitJsxSelfClosingElement(node, true);
            default:
                ts.Debug.failBadSyntaxKind(node);
                return undefined;
        }
    }
    function visitJsxElement(node, isChild) {
        return visitJsxOpeningLikeElement(node.openingElement, node.children, isChild, node);
    }
    function visitJsxSelfClosingElement(node, isChild) {
        return visitJsxOpeningLikeElement(node, undefined, isChild, node);
    }
    function visitJsxOpeningLikeElement(node, children, isChild, location) {
        var tagName = getTagName(node);
        var objectProperties;
        var attrs = node.attributes;
        if (attrs.length === 0) {
            objectProperties = ts.createNull();
        }
        else {
            var segments = ts.flatten(ts.spanMap(attrs, ts.isJsxSpreadAttribute, function (attrs, isSpread) { return isSpread
                ? ts.map(attrs, transformJsxSpreadAttributeToExpression)
                : ts.createObjectLiteral(ts.map(attrs, transformJsxAttributeToObjectLiteralElement)); }));
            if (ts.isJsxSpreadAttribute(attrs[0])) {
                segments.unshift(ts.createObjectLiteral());
            }
            objectProperties = ts.singleOrUndefined(segments);
            if (!objectProperties) {
                objectProperties = ts.createAssignHelper(context, segments);
            }
        }
        var element = ts.createExpressionForJsxElement(context.getEmitResolver().getJsxFactoryEntity(), compilerOptions.reactNamespace, tagName, objectProperties, ts.filter(ts.map(children, transformJsxChildToExpression), ts.isDefined), node, location);
        if (isChild) {
            ts.startOnNewLine(element);
        }
        return element;
    }
    function transformJsxSpreadAttributeToExpression(node) {
        return ts.visitNode(node.expression, visitor, ts.isExpression);
    }
    function transformJsxAttributeToObjectLiteralElement(node) {
        var name = getAttributeName(node);
        var expression = transformJsxAttributeInitializer(node.initializer);
        return ts.createPropertyAssignment(name, expression);
    }
    function transformJsxAttributeInitializer(node) {
        if (node === undefined) {
            return ts.createLiteral(true);
        }
        else if (node.kind === 9) {
            var decoded = tryDecodeEntities(node.text);
            return decoded ? ts.createLiteral(decoded, node) : node;
        }
        else if (node.kind === 252) {
            if (node.expression === undefined) {
                return ts.createLiteral(true);
            }
            return visitJsxExpression(node);
        }
        else {
            ts.Debug.failBadSyntaxKind(node);
        }
    }
    function visitJsxText(node) {
        var text = ts.getTextOfNode(node, true);
        var parts;
        var firstNonWhitespace = 0;
        var lastNonWhitespace = -1;
        for (var i = 0; i < text.length; i++) {
            var c = text.charCodeAt(i);
            if (ts.isLineBreak(c)) {
                if (firstNonWhitespace !== -1 && (lastNonWhitespace - firstNonWhitespace + 1 > 0)) {
                    var part = text.substr(firstNonWhitespace, lastNonWhitespace - firstNonWhitespace + 1);
                    if (!parts) {
                        parts = [];
                    }
                    parts.push(ts.createLiteral(decodeEntities(part)));
                }
                firstNonWhitespace = -1;
            }
            else if (!ts.isWhiteSpace(c)) {
                lastNonWhitespace = i;
                if (firstNonWhitespace === -1) {
                    firstNonWhitespace = i;
                }
            }
        }
        if (firstNonWhitespace !== -1) {
            var part = text.substr(firstNonWhitespace);
            if (!parts) {
                parts = [];
            }
            parts.push(ts.createLiteral(decodeEntities(part)));
        }
        if (parts) {
            return ts.reduceLeft(parts, aggregateJsxTextParts);
        }
        return undefined;
    }
    function aggregateJsxTextParts(left, right) {
        return ts.createAdd(ts.createAdd(left, ts.createLiteral(" ")), right);
    }
    function decodeEntities(text) {
        return text.replace(/&((#((\d+)|x([\da-fA-F]+)))|(\w+));/g, function (match, _all, _number, _digits, decimal, hex, word) {
            if (decimal) {
                return String.fromCharCode(parseInt(decimal, 10));
            }
            else if (hex) {
                return String.fromCharCode(parseInt(hex, 16));
            }
            else {
                var ch = entities[word];
                return ch ? String.fromCharCode(ch) : match;
            }
        });
    }
    function tryDecodeEntities(text) {
        var decoded = decodeEntities(text);
        return decoded === text ? undefined : decoded;
    }
    function getTagName(node) {
        if (node.kind === 246) {
            return getTagName(node.openingElement);
        }
        else {
            var name_35 = node.tagName;
            if (ts.isIdentifier(name_35) && ts.isIntrinsicJsxName(name_35.text)) {
                return ts.createLiteral(name_35.text);
            }
            else {
                return ts.createExpressionFromEntityName(name_35);
            }
        }
    }
    function getAttributeName(node) {
        var name = node.name;
        if (/^[A-Za-z_]\w*$/.test(name.text)) {
            return name;
        }
        else {
            return ts.createLiteral(name.text);
        }
    }
    function visitJsxExpression(node) {
        return ts.visitNode(node.expression, visitor, ts.isExpression);
    }
}
ts.transformJsx = transformJsx;
var entities = ts.createMap({
    "quot": 0x0022,
    "amp": 0x0026,
    "apos": 0x0027,
    "lt": 0x003C,
    "gt": 0x003E,
    "nbsp": 0x00A0,
    "iexcl": 0x00A1,
    "cent": 0x00A2,
    "pound": 0x00A3,
    "curren": 0x00A4,
    "yen": 0x00A5,
    "brvbar": 0x00A6,
    "sect": 0x00A7,
    "uml": 0x00A8,
    "copy": 0x00A9,
    "ordf": 0x00AA,
    "laquo": 0x00AB,
    "not": 0x00AC,
    "shy": 0x00AD,
    "reg": 0x00AE,
    "macr": 0x00AF,
    "deg": 0x00B0,
    "plusmn": 0x00B1,
    "sup2": 0x00B2,
    "sup3": 0x00B3,
    "acute": 0x00B4,
    "micro": 0x00B5,
    "para": 0x00B6,
    "middot": 0x00B7,
    "cedil": 0x00B8,
    "sup1": 0x00B9,
    "ordm": 0x00BA,
    "raquo": 0x00BB,
    "frac14": 0x00BC,
    "frac12": 0x00BD,
    "frac34": 0x00BE,
    "iquest": 0x00BF,
    "Agrave": 0x00C0,
    "Aacute": 0x00C1,
    "Acirc": 0x00C2,
    "Atilde": 0x00C3,
    "Auml": 0x00C4,
    "Aring": 0x00C5,
    "AElig": 0x00C6,
    "Ccedil": 0x00C7,
    "Egrave": 0x00C8,
    "Eacute": 0x00C9,
    "Ecirc": 0x00CA,
    "Euml": 0x00CB,
    "Igrave": 0x00CC,
    "Iacute": 0x00CD,
    "Icirc": 0x00CE,
    "Iuml": 0x00CF,
    "ETH": 0x00D0,
    "Ntilde": 0x00D1,
    "Ograve": 0x00D2,
    "Oacute": 0x00D3,
    "Ocirc": 0x00D4,
    "Otilde": 0x00D5,
    "Ouml": 0x00D6,
    "times": 0x00D7,
    "Oslash": 0x00D8,
    "Ugrave": 0x00D9,
    "Uacute": 0x00DA,
    "Ucirc": 0x00DB,
    "Uuml": 0x00DC,
    "Yacute": 0x00DD,
    "THORN": 0x00DE,
    "szlig": 0x00DF,
    "agrave": 0x00E0,
    "aacute": 0x00E1,
    "acirc": 0x00E2,
    "atilde": 0x00E3,
    "auml": 0x00E4,
    "aring": 0x00E5,
    "aelig": 0x00E6,
    "ccedil": 0x00E7,
    "egrave": 0x00E8,
    "eacute": 0x00E9,
    "ecirc": 0x00EA,
    "euml": 0x00EB,
    "igrave": 0x00EC,
    "iacute": 0x00ED,
    "icirc": 0x00EE,
    "iuml": 0x00EF,
    "eth": 0x00F0,
    "ntilde": 0x00F1,
    "ograve": 0x00F2,
    "oacute": 0x00F3,
    "ocirc": 0x00F4,
    "otilde": 0x00F5,
    "ouml": 0x00F6,
    "divide": 0x00F7,
    "oslash": 0x00F8,
    "ugrave": 0x00F9,
    "uacute": 0x00FA,
    "ucirc": 0x00FB,
    "uuml": 0x00FC,
    "yacute": 0x00FD,
    "thorn": 0x00FE,
    "yuml": 0x00FF,
    "OElig": 0x0152,
    "oelig": 0x0153,
    "Scaron": 0x0160,
    "scaron": 0x0161,
    "Yuml": 0x0178,
    "fnof": 0x0192,
    "circ": 0x02C6,
    "tilde": 0x02DC,
    "Alpha": 0x0391,
    "Beta": 0x0392,
    "Gamma": 0x0393,
    "Delta": 0x0394,
    "Epsilon": 0x0395,
    "Zeta": 0x0396,
    "Eta": 0x0397,
    "Theta": 0x0398,
    "Iota": 0x0399,
    "Kappa": 0x039A,
    "Lambda": 0x039B,
    "Mu": 0x039C,
    "Nu": 0x039D,
    "Xi": 0x039E,
    "Omicron": 0x039F,
    "Pi": 0x03A0,
    "Rho": 0x03A1,
    "Sigma": 0x03A3,
    "Tau": 0x03A4,
    "Upsilon": 0x03A5,
    "Phi": 0x03A6,
    "Chi": 0x03A7,
    "Psi": 0x03A8,
    "Omega": 0x03A9,
    "alpha": 0x03B1,
    "beta": 0x03B2,
    "gamma": 0x03B3,
    "delta": 0x03B4,
    "epsilon": 0x03B5,
    "zeta": 0x03B6,
    "eta": 0x03B7,
    "theta": 0x03B8,
    "iota": 0x03B9,
    "kappa": 0x03BA,
    "lambda": 0x03BB,
    "mu": 0x03BC,
    "nu": 0x03BD,
    "xi": 0x03BE,
    "omicron": 0x03BF,
    "pi": 0x03C0,
    "rho": 0x03C1,
    "sigmaf": 0x03C2,
    "sigma": 0x03C3,
    "tau": 0x03C4,
    "upsilon": 0x03C5,
    "phi": 0x03C6,
    "chi": 0x03C7,
    "psi": 0x03C8,
    "omega": 0x03C9,
    "thetasym": 0x03D1,
    "upsih": 0x03D2,
    "piv": 0x03D6,
    "ensp": 0x2002,
    "emsp": 0x2003,
    "thinsp": 0x2009,
    "zwnj": 0x200C,
    "zwj": 0x200D,
    "lrm": 0x200E,
    "rlm": 0x200F,
    "ndash": 0x2013,
    "mdash": 0x2014,
    "lsquo": 0x2018,
    "rsquo": 0x2019,
    "sbquo": 0x201A,
    "ldquo": 0x201C,
    "rdquo": 0x201D,
    "bdquo": 0x201E,
    "dagger": 0x2020,
    "Dagger": 0x2021,
    "bull": 0x2022,
    "hellip": 0x2026,
    "permil": 0x2030,
    "prime": 0x2032,
    "Prime": 0x2033,
    "lsaquo": 0x2039,
    "rsaquo": 0x203A,
    "oline": 0x203E,
    "frasl": 0x2044,
    "euro": 0x20AC,
    "image": 0x2111,
    "weierp": 0x2118,
    "real": 0x211C,
    "trade": 0x2122,
    "alefsym": 0x2135,
    "larr": 0x2190,
    "uarr": 0x2191,
    "rarr": 0x2192,
    "darr": 0x2193,
    "harr": 0x2194,
    "crarr": 0x21B5,
    "lArr": 0x21D0,
    "uArr": 0x21D1,
    "rArr": 0x21D2,
    "dArr": 0x21D3,
    "hArr": 0x21D4,
    "forall": 0x2200,
    "part": 0x2202,
    "exist": 0x2203,
    "empty": 0x2205,
    "nabla": 0x2207,
    "isin": 0x2208,
    "notin": 0x2209,
    "ni": 0x220B,
    "prod": 0x220F,
    "sum": 0x2211,
    "minus": 0x2212,
    "lowast": 0x2217,
    "radic": 0x221A,
    "prop": 0x221D,
    "infin": 0x221E,
    "ang": 0x2220,
    "and": 0x2227,
    "or": 0x2228,
    "cap": 0x2229,
    "cup": 0x222A,
    "int": 0x222B,
    "there4": 0x2234,
    "sim": 0x223C,
    "cong": 0x2245,
    "asymp": 0x2248,
    "ne": 0x2260,
    "equiv": 0x2261,
    "le": 0x2264,
    "ge": 0x2265,
    "sub": 0x2282,
    "sup": 0x2283,
    "nsub": 0x2284,
    "sube": 0x2286,
    "supe": 0x2287,
    "oplus": 0x2295,
    "otimes": 0x2297,
    "perp": 0x22A5,
    "sdot": 0x22C5,
    "lceil": 0x2308,
    "rceil": 0x2309,
    "lfloor": 0x230A,
    "rfloor": 0x230B,
    "lang": 0x2329,
    "rang": 0x232A,
    "loz": 0x25CA,
    "spades": 0x2660,
    "clubs": 0x2663,
    "hearts": 0x2665,
    "diams": 0x2666
});

})(ts || (ts = {})); var ts; (function (ts) {

function transformES2017(context) {
    var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
    var resolver = context.getEmitResolver();
    var compilerOptions = context.getCompilerOptions();
    var languageVersion = ts.getEmitScriptTarget(compilerOptions);
    var currentSourceFile;
    var enabledSubstitutions;
    var currentSuperContainer;
    var previousOnEmitNode = context.onEmitNode;
    var previousOnSubstituteNode = context.onSubstituteNode;
    context.onEmitNode = onEmitNode;
    context.onSubstituteNode = onSubstituteNode;
    return transformSourceFile;
    function transformSourceFile(node) {
        if (ts.isDeclarationFile(node)) {
            return node;
        }
        currentSourceFile = node;
        var visited = ts.visitEachChild(node, visitor, context);
        ts.addEmitHelpers(visited, context.readEmitHelpers());
        currentSourceFile = undefined;
        return visited;
    }
    function visitor(node) {
        if ((node.transformFlags & 16) === 0) {
            return node;
        }
        switch (node.kind) {
            case 119:
                return undefined;
            case 189:
                return visitAwaitExpression(node);
            case 149:
                return visitMethodDeclaration(node);
            case 225:
                return visitFunctionDeclaration(node);
            case 184:
                return visitFunctionExpression(node);
            case 185:
                return visitArrowFunction(node);
            default:
                return ts.visitEachChild(node, visitor, context);
        }
    }
    function visitAwaitExpression(node) {
        return ts.setOriginalNode(ts.createYield(undefined, ts.visitNode(node.expression, visitor, ts.isExpression), node), node);
    }
    function visitMethodDeclaration(node) {
        return ts.updateMethod(node, undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
            ? transformAsyncFunctionBody(node)
            : ts.visitFunctionBody(node.body, visitor, context));
    }
    function visitFunctionDeclaration(node) {
        return ts.updateFunctionDeclaration(node, undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
            ? transformAsyncFunctionBody(node)
            : ts.visitFunctionBody(node.body, visitor, context));
    }
    function visitFunctionExpression(node) {
        if (ts.nodeIsMissing(node.body)) {
            return ts.createOmittedExpression();
        }
        return ts.updateFunctionExpression(node, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
            ? transformAsyncFunctionBody(node)
            : ts.visitFunctionBody(node.body, visitor, context));
    }
    function visitArrowFunction(node) {
        return ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, visitor, ts.isModifier), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
            ? transformAsyncFunctionBody(node)
            : ts.visitFunctionBody(node.body, visitor, context));
    }
    function transformAsyncFunctionBody(node) {
        resumeLexicalEnvironment();
        var original = ts.getOriginalNode(node, ts.isFunctionLike);
        var nodeType = original.type;
        var promiseConstructor = languageVersion < 2 ? getPromiseConstructor(nodeType) : undefined;
        var isArrowFunction = node.kind === 185;
        var hasLexicalArguments = (resolver.getNodeCheckFlags(node) & 8192) !== 0;
        if (!isArrowFunction) {
            var statements = [];
            var statementOffset = ts.addPrologueDirectives(statements, node.body.statements, false, visitor);
            statements.push(ts.createReturn(createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body, statementOffset))));
            ts.addRange(statements, endLexicalEnvironment());
            var block = ts.createBlock(statements, node.body, true);
            if (languageVersion >= 2) {
                if (resolver.getNodeCheckFlags(node) & 4096) {
                    enableSubstitutionForAsyncMethodsWithSuper();
                    ts.addEmitHelper(block, advancedAsyncSuperHelper);
                }
                else if (resolver.getNodeCheckFlags(node) & 2048) {
                    enableSubstitutionForAsyncMethodsWithSuper();
                    ts.addEmitHelper(block, asyncSuperHelper);
                }
            }
            return block;
        }
        else {
            var expression = createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body));
            var declarations = endLexicalEnvironment();
            if (ts.some(declarations)) {
                var block = ts.convertToFunctionBody(expression);
                return ts.updateBlock(block, ts.createNodeArray(ts.concatenate(block.statements, declarations), block.statements));
            }
            return expression;
        }
    }
    function transformFunctionBodyWorker(body, start) {
        if (ts.isBlock(body)) {
            return ts.updateBlock(body, ts.visitLexicalEnvironment(body.statements, visitor, context, start));
        }
        else {
            startLexicalEnvironment();
            var visited = ts.convertToFunctionBody(ts.visitNode(body, visitor, ts.isConciseBody));
            var declarations = endLexicalEnvironment();
            return ts.updateBlock(visited, ts.createNodeArray(ts.concatenate(visited.statements, declarations), visited.statements));
        }
    }
    function getPromiseConstructor(type) {
        var typeName = type && ts.getEntityNameFromTypeNode(type);
        if (typeName && ts.isEntityName(typeName)) {
            var serializationKind = resolver.getTypeReferenceSerializationKind(typeName);
            if (serializationKind === ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue
                || serializationKind === ts.TypeReferenceSerializationKind.Unknown) {
                return typeName;
            }
        }
        return undefined;
    }
    function enableSubstitutionForAsyncMethodsWithSuper() {
        if ((enabledSubstitutions & 1) === 0) {
            enabledSubstitutions |= 1;
            context.enableSubstitution(179);
            context.enableSubstitution(177);
            context.enableSubstitution(178);
            context.enableEmitNotification(226);
            context.enableEmitNotification(149);
            context.enableEmitNotification(151);
            context.enableEmitNotification(152);
            context.enableEmitNotification(150);
        }
    }
    function substituteExpression(node) {
        switch (node.kind) {
            case 177:
                return substitutePropertyAccessExpression(node);
            case 178:
                return substituteElementAccessExpression(node);
            case 179:
                if (enabledSubstitutions & 1) {
                    return substituteCallExpression(node);
                }
                break;
        }
        return node;
    }
    function substitutePropertyAccessExpression(node) {
        if (enabledSubstitutions & 1 && node.expression.kind === 96) {
            var flags = getSuperContainerAsyncMethodFlags();
            if (flags) {
                return createSuperAccessInAsyncMethod(ts.createLiteral(node.name.text), flags, node);
            }
        }
        return node;
    }
    function substituteElementAccessExpression(node) {
        if (enabledSubstitutions & 1 && node.expression.kind === 96) {
            var flags = getSuperContainerAsyncMethodFlags();
            if (flags) {
                return createSuperAccessInAsyncMethod(node.argumentExpression, flags, node);
            }
        }
        return node;
    }
    function substituteCallExpression(node) {
        var expression = node.expression;
        if (ts.isSuperProperty(expression)) {
            var flags = getSuperContainerAsyncMethodFlags();
            if (flags) {
                var argumentExpression = ts.isPropertyAccessExpression(expression)
                    ? substitutePropertyAccessExpression(expression)
                    : substituteElementAccessExpression(expression);
                return ts.createCall(ts.createPropertyAccess(argumentExpression, "call"), undefined, [
                    ts.createThis()
                ].concat(node.arguments));
            }
        }
        return node;
    }
    function isSuperContainer(node) {
        var kind = node.kind;
        return kind === 226
            || kind === 150
            || kind === 149
            || kind === 151
            || kind === 152;
    }
    function onEmitNode(emitContext, node, emitCallback) {
        if (enabledSubstitutions & 1 && isSuperContainer(node)) {
            var savedCurrentSuperContainer = currentSuperContainer;
            currentSuperContainer = node;
            previousOnEmitNode(emitContext, node, emitCallback);
            currentSuperContainer = savedCurrentSuperContainer;
        }
        else {
            previousOnEmitNode(emitContext, node, emitCallback);
        }
    }
    function onSubstituteNode(emitContext, node) {
        node = previousOnSubstituteNode(emitContext, node);
        if (emitContext === 1) {
            return substituteExpression(node);
        }
        return node;
    }
    function createSuperAccessInAsyncMethod(argumentExpression, flags, location) {
        if (flags & 4096) {
            return ts.createPropertyAccess(ts.createCall(ts.createIdentifier("_super"), undefined, [argumentExpression]), "value", location);
        }
        else {
            return ts.createCall(ts.createIdentifier("_super"), undefined, [argumentExpression], location);
        }
    }
    function getSuperContainerAsyncMethodFlags() {
        return currentSuperContainer !== undefined
            && resolver.getNodeCheckFlags(currentSuperContainer) & (2048 | 4096);
    }
}
ts.transformES2017 = transformES2017;
function createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, body) {
    context.requestEmitHelper(awaiterHelper);
    var generatorFunc = ts.createFunctionExpression(undefined, ts.createToken(38), undefined, undefined, [], undefined, body);
    (generatorFunc.emitNode || (generatorFunc.emitNode = {})).flags |= 131072;
    return ts.createCall(ts.getHelperName("__awaiter"), undefined, [
        ts.createThis(),
        hasLexicalArguments ? ts.createIdentifier("arguments") : ts.createVoidZero(),
        promiseConstructor ? ts.createExpressionFromEntityName(promiseConstructor) : ts.createVoidZero(),
        generatorFunc
    ]);
}
var awaiterHelper = {
    name: "typescript:awaiter",
    scoped: false,
    priority: 5,
    text: "\n            var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n                return new (P || (P = Promise))(function (resolve, reject) {\n                    function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n                    function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n                    function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\n                    step((generator = generator.apply(thisArg, _arguments || [])).next());\n                });\n            };"
};
var asyncSuperHelper = {
    name: "typescript:async-super",
    scoped: true,
    text: "\n            const _super = name => super[name];"
};
var advancedAsyncSuperHelper = {
    name: "typescript:advanced-async-super",
    scoped: true,
    text: "\n            const _super = (function (geti, seti) {\n                const cache = Object.create(null);\n                return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });\n            })(name => super[name], (name, value) => super[name] = value);"
};

})(ts || (ts = {})); var ts; (function (ts) {

function transformES2016(context) {
    var hoistVariableDeclaration = context.hoistVariableDeclaration;
    return transformSourceFile;
    function transformSourceFile(node) {
        if (ts.isDeclarationFile(node)) {
            return node;
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitor(node) {
        if ((node.transformFlags & 32) === 0) {
            return node;
        }
        switch (node.kind) {
            case 192:
                return visitBinaryExpression(node);
            default:
                return ts.visitEachChild(node, visitor, context);
        }
    }
    function visitBinaryExpression(node) {
        switch (node.operatorToken.kind) {
            case 61:
                return visitExponentiationAssignmentExpression(node);
            case 39:
                return visitExponentiationExpression(node);
            default:
                return ts.visitEachChild(node, visitor, context);
        }
    }
    function visitExponentiationAssignmentExpression(node) {
        var target;
        var value;
        var left = ts.visitNode(node.left, visitor, ts.isExpression);
        var right = ts.visitNode(node.right, visitor, ts.isExpression);
        if (ts.isElementAccessExpression(left)) {
            var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
            var argumentExpressionTemp = ts.createTempVariable(hoistVariableDeclaration);
            target = ts.createElementAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), ts.createAssignment(argumentExpressionTemp, left.argumentExpression, left.argumentExpression), left);
            value = ts.createElementAccess(expressionTemp, argumentExpressionTemp, left);
        }
        else if (ts.isPropertyAccessExpression(left)) {
            var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
            target = ts.createPropertyAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), left.name, left);
            value = ts.createPropertyAccess(expressionTemp, left.name, left);
        }
        else {
            target = left;
            value = left;
        }
        return ts.createAssignment(target, ts.createMathPow(value, right, node), node);
    }
    function visitExponentiationExpression(node) {
        var left = ts.visitNode(node.left, visitor, ts.isExpression);
        var right = ts.visitNode(node.right, visitor, ts.isExpression);
        return ts.createMathPow(left, right, node);
    }
}
ts.transformES2016 = transformES2016;

})(ts || (ts = {})); var ts; (function (ts) {

function transformES2015(context) {
    var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
    var resolver = context.getEmitResolver();
    var previousOnSubstituteNode = context.onSubstituteNode;
    var previousOnEmitNode = context.onEmitNode;
    context.onEmitNode = onEmitNode;
    context.onSubstituteNode = onSubstituteNode;
    var currentSourceFile;
    var currentText;
    var currentParent;
    var currentNode;
    var enclosingVariableStatement;
    var enclosingBlockScopeContainer;
    var enclosingBlockScopeContainerParent;
    var enclosingFunction;
    var enclosingNonArrowFunction;
    var enclosingNonAsyncFunctionBody;
    var isInConstructorWithCapturedSuper;
    var convertedLoopState;
    var enabledSubstitutions;
    return transformSourceFile;
    function transformSourceFile(node) {
        if (ts.isDeclarationFile(node)) {
            return node;
        }
        currentSourceFile = node;
        currentText = node.text;
        var visited = saveStateAndInvoke(node, visitSourceFile);
        ts.addEmitHelpers(visited, context.readEmitHelpers());
        currentSourceFile = undefined;
        currentText = undefined;
        return visited;
    }
    function visitor(node) {
        return saveStateAndInvoke(node, dispatcher);
    }
    function dispatcher(node) {
        return convertedLoopState
            ? visitorForConvertedLoopWorker(node)
            : visitorWorker(node);
    }
    function saveStateAndInvoke(node, f) {
        var savedEnclosingFunction = enclosingFunction;
        var savedEnclosingNonArrowFunction = enclosingNonArrowFunction;
        var savedEnclosingNonAsyncFunctionBody = enclosingNonAsyncFunctionBody;
        var savedEnclosingBlockScopeContainer = enclosingBlockScopeContainer;
        var savedEnclosingBlockScopeContainerParent = enclosingBlockScopeContainerParent;
        var savedEnclosingVariableStatement = enclosingVariableStatement;
        var savedCurrentParent = currentParent;
        var savedCurrentNode = currentNode;
        var savedConvertedLoopState = convertedLoopState;
        var savedIsInConstructorWithCapturedSuper = isInConstructorWithCapturedSuper;
        if (ts.nodeStartsNewLexicalEnvironment(node)) {
            isInConstructorWithCapturedSuper = false;
            convertedLoopState = undefined;
        }
        onBeforeVisitNode(node);
        var visited = f(node);
        isInConstructorWithCapturedSuper = savedIsInConstructorWithCapturedSuper;
        convertedLoopState = savedConvertedLoopState;
        enclosingFunction = savedEnclosingFunction;
        enclosingNonArrowFunction = savedEnclosingNonArrowFunction;
        enclosingNonAsyncFunctionBody = savedEnclosingNonAsyncFunctionBody;
        enclosingBlockScopeContainer = savedEnclosingBlockScopeContainer;
        enclosingBlockScopeContainerParent = savedEnclosingBlockScopeContainerParent;
        enclosingVariableStatement = savedEnclosingVariableStatement;
        currentParent = savedCurrentParent;
        currentNode = savedCurrentNode;
        return visited;
    }
    function onBeforeVisitNode(node) {
        if (currentNode) {
            if (ts.isBlockScope(currentNode, currentParent)) {
                enclosingBlockScopeContainer = currentNode;
                enclosingBlockScopeContainerParent = currentParent;
            }
            if (ts.isFunctionLike(currentNode)) {
                enclosingFunction = currentNode;
                if (currentNode.kind !== 185) {
                    enclosingNonArrowFunction = currentNode;
                    if (!(ts.getEmitFlags(currentNode) & 131072)) {
                        enclosingNonAsyncFunctionBody = currentNode;
                    }
                }
            }
            switch (currentNode.kind) {
                case 205:
                    enclosingVariableStatement = currentNode;
                    break;
                case 224:
                case 223:
                case 174:
                case 172:
                case 173:
                    break;
                default:
                    enclosingVariableStatement = undefined;
            }
        }
        currentParent = currentNode;
        currentNode = node;
    }
    function returnCapturedThis(node) {
        return ts.setOriginalNode(ts.createReturn(ts.createIdentifier("_this")), node);
    }
    function isReturnVoidStatementInConstructorWithCapturedSuper(node) {
        return isInConstructorWithCapturedSuper && node.kind === 216 && !node.expression;
    }
    function shouldCheckNode(node) {
        return (node.transformFlags & 64) !== 0 ||
            node.kind === 219 ||
            (ts.isIterationStatement(node, false) && shouldConvertIterationStatementBody(node));
    }
    function visitorWorker(node) {
        if (isReturnVoidStatementInConstructorWithCapturedSuper(node)) {
            return returnCapturedThis(node);
        }
        else if (shouldCheckNode(node)) {
            return visitJavaScript(node);
        }
        else if (node.transformFlags & 128 || (isInConstructorWithCapturedSuper && !ts.isExpression(node))) {
            return ts.visitEachChild(node, visitor, context);
        }
        else {
            return node;
        }
    }
    function visitorForConvertedLoopWorker(node) {
        var result;
        if (shouldCheckNode(node)) {
            result = visitJavaScript(node);
        }
        else {
            result = visitNodesInConvertedLoop(node);
        }
        return result;
    }
    function visitNodesInConvertedLoop(node) {
        switch (node.kind) {
            case 216:
                node = isReturnVoidStatementInConstructorWithCapturedSuper(node) ? returnCapturedThis(node) : node;
                return visitReturnStatement(node);
            case 205:
                return visitVariableStatement(node);
            case 218:
                return visitSwitchStatement(node);
            case 215:
            case 214:
                return visitBreakOrContinueStatement(node);
            case 98:
                return visitThisKeyword(node);
            case 70:
                return visitIdentifier(node);
            default:
                return ts.visitEachChild(node, visitor, context);
        }
    }
    function visitJavaScript(node) {
        switch (node.kind) {
            case 114:
                return undefined;
            case 226:
                return visitClassDeclaration(node);
            case 197:
                return visitClassExpression(node);
            case 144:
                return visitParameter(node);
            case 225:
                return visitFunctionDeclaration(node);
            case 185:
                return visitArrowFunction(node);
            case 184:
                return visitFunctionExpression(node);
            case 223:
                return visitVariableDeclaration(node);
            case 70:
                return visitIdentifier(node);
            case 224:
                return visitVariableDeclarationList(node);
            case 219:
                return visitLabeledStatement(node);
            case 209:
                return visitDoStatement(node);
            case 210:
                return visitWhileStatement(node);
            case 211:
                return visitForStatement(node);
            case 212:
                return visitForInStatement(node);
            case 213:
                return visitForOfStatement(node);
            case 207:
                return visitExpressionStatement(node);
            case 176:
                return visitObjectLiteralExpression(node);
            case 256:
                return visitCatchClause(node);
            case 258:
                return visitShorthandPropertyAssignment(node);
            case 175:
                return visitArrayLiteralExpression(node);
            case 179:
                return visitCallExpression(node);
            case 180:
                return visitNewExpression(node);
            case 183:
                return visitParenthesizedExpression(node, true);
            case 192:
                return visitBinaryExpression(node, true);
            case 12:
            case 13:
            case 14:
            case 15:
                return visitTemplateLiteral(node);
            case 181:
                return visitTaggedTemplateExpression(node);
            case 194:
                return visitTemplateExpression(node);
            case 195:
                return visitYieldExpression(node);
            case 196:
                return visitSpreadElement(node);
            case 96:
                return visitSuperKeyword();
            case 195:
                return ts.visitEachChild(node, visitor, context);
            case 149:
                return visitMethodDeclaration(node);
            case 205:
                return visitVariableStatement(node);
            default:
                ts.Debug.failBadSyntaxKind(node);
                return ts.visitEachChild(node, visitor, context);
        }
    }
    function visitSourceFile(node) {
        var statements = [];
        startLexicalEnvironment();
        var statementOffset = ts.addPrologueDirectives(statements, node.statements, false, visitor);
        addCaptureThisForNodeIfNeeded(statements, node);
        ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
        ts.addRange(statements, endLexicalEnvironment());
        return ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
    }
    function visitSwitchStatement(node) {
        ts.Debug.assert(convertedLoopState !== undefined);
        var savedAllowedNonLabeledJumps = convertedLoopState.allowedNonLabeledJumps;
        convertedLoopState.allowedNonLabeledJumps |= 2;
        var result = ts.visitEachChild(node, visitor, context);
        convertedLoopState.allowedNonLabeledJumps = savedAllowedNonLabeledJumps;
        return result;
    }
    function visitReturnStatement(node) {
        ts.Debug.assert(convertedLoopState !== undefined);
        convertedLoopState.nonLocalJumps |= 8;
        return ts.createReturn(ts.createObjectLiteral([
            ts.createPropertyAssignment(ts.createIdentifier("value"), node.expression
                ? ts.visitNode(node.expression, visitor, ts.isExpression)
                : ts.createVoidZero())
        ]));
    }
    function visitThisKeyword(node) {
        ts.Debug.assert(convertedLoopState !== undefined);
        if (enclosingFunction && enclosingFunction.kind === 185) {
            convertedLoopState.containsLexicalThis = true;
            return node;
        }
        return convertedLoopState.thisName || (convertedLoopState.thisName = ts.createUniqueName("this"));
    }
    function visitIdentifier(node) {
        if (!convertedLoopState) {
            return node;
        }
        if (ts.isGeneratedIdentifier(node)) {
            return node;
        }
        if (node.text !== "arguments" && !resolver.isArgumentsLocalBinding(node)) {
            return node;
        }
        return convertedLoopState.argumentsName || (convertedLoopState.argumentsName = ts.createUniqueName("arguments"));
    }
    function visitBreakOrContinueStatement(node) {
        if (convertedLoopState) {
            var jump = node.kind === 215 ? 2 : 4;
            var canUseBreakOrContinue = (node.label && convertedLoopState.labels && convertedLoopState.labels[node.label.text]) ||
                (!node.label && (convertedLoopState.allowedNonLabeledJumps & jump));
            if (!canUseBreakOrContinue) {
                var labelMarker = void 0;
                if (!node.label) {
                    if (node.kind === 215) {
                        convertedLoopState.nonLocalJumps |= 2;
                        labelMarker = "break";
                    }
                    else {
                        convertedLoopState.nonLocalJumps |= 4;
                        labelMarker = "continue";
                    }
                }
                else {
                    if (node.kind === 215) {
                        labelMarker = "break-" + node.label.text;
                        setLabeledJump(convertedLoopState, true, node.label.text, labelMarker);
                    }
                    else {
                        labelMarker = "continue-" + node.label.text;
                        setLabeledJump(convertedLoopState, false, node.label.text, labelMarker);
                    }
                }
                var returnExpression = ts.createLiteral(labelMarker);
                if (convertedLoopState.loopOutParameters.length) {
                    var outParams = convertedLoopState.loopOutParameters;
                    var expr = void 0;
                    for (var i = 0; i < outParams.length; i++) {
                        var copyExpr = copyOutParameter(outParams[i], 1);
                        if (i === 0) {
                            expr = copyExpr;
                        }
                        else {
                            expr = ts.createBinary(expr, 25, copyExpr);
                        }
                    }
                    returnExpression = ts.createBinary(expr, 25, returnExpression);
                }
                return ts.createReturn(returnExpression);
            }
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitClassDeclaration(node) {
        var variable = ts.createVariableDeclaration(ts.getLocalName(node, true), undefined, transformClassLikeDeclarationToExpression(node));
        ts.setOriginalNode(variable, node);
        var statements = [];
        var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([variable]), node);
        ts.setOriginalNode(statement, node);
        ts.startOnNewLine(statement);
        statements.push(statement);
        if (ts.hasModifier(node, 1)) {
            var exportStatement = ts.hasModifier(node, 512)
                ? ts.createExportDefault(ts.getLocalName(node))
                : ts.createExternalModuleExport(ts.getLocalName(node));
            ts.setOriginalNode(exportStatement, statement);
            statements.push(exportStatement);
        }
        var emitFlags = ts.getEmitFlags(node);
        if ((emitFlags & 2097152) === 0) {
            statements.push(ts.createEndOfDeclarationMarker(node));
            ts.setEmitFlags(statement, emitFlags | 2097152);
        }
        return ts.singleOrMany(statements);
    }
    function visitClassExpression(node) {
        return transformClassLikeDeclarationToExpression(node);
    }
    function transformClassLikeDeclarationToExpression(node) {
        if (node.name) {
            enableSubstitutionsForBlockScopedBindings();
        }
        var extendsClauseElement = ts.getClassExtendsHeritageClauseElement(node);
        var classFunction = ts.createFunctionExpression(undefined, undefined, undefined, undefined, extendsClauseElement ? [ts.createParameter(undefined, undefined, undefined, "_super")] : [], undefined, transformClassBody(node, extendsClauseElement));
        if (ts.getEmitFlags(node) & 32768) {
            ts.setEmitFlags(classFunction, 32768);
        }
        var inner = ts.createPartiallyEmittedExpression(classFunction);
        inner.end = node.end;
        ts.setEmitFlags(inner, 1536);
        var outer = ts.createPartiallyEmittedExpression(inner);
        outer.end = ts.skipTrivia(currentText, node.pos);
        ts.setEmitFlags(outer, 1536);
        return ts.createParen(ts.createCall(outer, undefined, extendsClauseElement
            ? [ts.visitNode(extendsClauseElement.expression, visitor, ts.isExpression)]
            : []));
    }
    function transformClassBody(node, extendsClauseElement) {
        var statements = [];
        startLexicalEnvironment();
        addExtendsHelperIfNeeded(statements, node, extendsClauseElement);
        addConstructor(statements, node, extendsClauseElement);
        addClassMembers(statements, node);
        var closingBraceLocation = ts.createTokenRange(ts.skipTrivia(currentText, node.members.end), 17);
        var localName = ts.getLocalName(node);
        var outer = ts.createPartiallyEmittedExpression(localName);
        outer.end = closingBraceLocation.end;
        ts.setEmitFlags(outer, 1536);
        var statement = ts.createReturn(outer);
        statement.pos = closingBraceLocation.pos;
        ts.setEmitFlags(statement, 1536 | 384);
        statements.push(statement);
        ts.addRange(statements, endLexicalEnvironment());
        var block = ts.createBlock(ts.createNodeArray(statements, node.members), undefined, true);
        ts.setEmitFlags(block, 1536);
        return block;
    }
    function addExtendsHelperIfNeeded(statements, node, extendsClauseElement) {
        if (extendsClauseElement) {
            statements.push(ts.createStatement(createExtendsHelper(context, ts.getLocalName(node)), extendsClauseElement));
        }
    }
    function addConstructor(statements, node, extendsClauseElement) {
        var constructor = ts.getFirstConstructorWithBody(node);
        var hasSynthesizedSuper = hasSynthesizedDefaultSuperCall(constructor, extendsClauseElement !== undefined);
        var constructorFunction = ts.createFunctionDeclaration(undefined, undefined, undefined, ts.getDeclarationName(node), undefined, transformConstructorParameters(constructor, hasSynthesizedSuper), undefined, transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper), constructor || node);
        if (extendsClauseElement) {
            ts.setEmitFlags(constructorFunction, 8);
        }
        statements.push(constructorFunction);
    }
    function transformConstructorParameters(constructor, hasSynthesizedSuper) {
        return ts.visitParameterList(constructor && !hasSynthesizedSuper && constructor.parameters, visitor, context)
            || [];
    }
    function transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper) {
        var statements = [];
        resumeLexicalEnvironment();
        var statementOffset = -1;
        if (hasSynthesizedSuper) {
            statementOffset = 0;
        }
        else if (constructor) {
            statementOffset = ts.addPrologueDirectives(statements, constructor.body.statements, false, visitor);
        }
        if (constructor) {
            addDefaultValueAssignmentsIfNeeded(statements, constructor);
            addRestParameterIfNeeded(statements, constructor, hasSynthesizedSuper);
            ts.Debug.assert(statementOffset >= 0, "statementOffset not initialized correctly!");
        }
        var isDerivedClass = extendsClauseElement && ts.skipOuterExpressions(extendsClauseElement.expression).kind !== 94;
        var superCaptureStatus = declareOrCaptureOrReturnThisForConstructorIfNeeded(statements, constructor, isDerivedClass, hasSynthesizedSuper, statementOffset);
        if (superCaptureStatus === 1 || superCaptureStatus === 2) {
            statementOffset++;
        }
        if (constructor) {
            var body = saveStateAndInvoke(constructor, function (constructor) {
                isInConstructorWithCapturedSuper = superCaptureStatus === 1;
                return ts.visitNodes(constructor.body.statements, visitor, ts.isStatement, statementOffset);
            });
            ts.addRange(statements, body);
        }
        if (isDerivedClass
            && superCaptureStatus !== 2
            && !(constructor && isSufficientlyCoveredByReturnStatements(constructor.body))) {
            statements.push(ts.createReturn(ts.createIdentifier("_this")));
        }
        ts.addRange(statements, endLexicalEnvironment());
        var block = ts.createBlock(ts.createNodeArray(statements, constructor ? constructor.body.statements : node.members), constructor ? constructor.body : node, true);
        if (!constructor) {
            ts.setEmitFlags(block, 1536);
        }
        return block;
    }
    function isSufficientlyCoveredByReturnStatements(statement) {
        if (statement.kind === 216) {
            return true;
        }
        else if (statement.kind === 208) {
            var ifStatement = statement;
            if (ifStatement.elseStatement) {
                return isSufficientlyCoveredByReturnStatements(ifStatement.thenStatement) &&
                    isSufficientlyCoveredByReturnStatements(ifStatement.elseStatement);
            }
        }
        else if (statement.kind === 204) {
            var lastStatement = ts.lastOrUndefined(statement.statements);
            if (lastStatement && isSufficientlyCoveredByReturnStatements(lastStatement)) {
                return true;
            }
        }
        return false;
    }
    function declareOrCaptureOrReturnThisForConstructorIfNeeded(statements, ctor, isDerivedClass, hasSynthesizedSuper, statementOffset) {
        if (!isDerivedClass) {
            if (ctor) {
                addCaptureThisForNodeIfNeeded(statements, ctor);
            }
            return 0;
        }
        if (!ctor) {
            statements.push(ts.createReturn(createDefaultSuperCallOrThis()));
            return 2;
        }
        if (hasSynthesizedSuper) {
            captureThisForNode(statements, ctor, createDefaultSuperCallOrThis());
            enableSubstitutionsForCapturedThis();
            return 1;
        }
        var firstStatement;
        var superCallExpression;
        var ctorStatements = ctor.body.statements;
        if (statementOffset < ctorStatements.length) {
            firstStatement = ctorStatements[statementOffset];
            if (firstStatement.kind === 207 && ts.isSuperCall(firstStatement.expression)) {
                var superCall = firstStatement.expression;
                superCallExpression = ts.setOriginalNode(saveStateAndInvoke(superCall, visitImmediateSuperCallInBody), superCall);
            }
        }
        if (superCallExpression
            && statementOffset === ctorStatements.length - 1
            && !(ctor.transformFlags & (16384 | 32768))) {
            var returnStatement = ts.createReturn(superCallExpression);
            if (superCallExpression.kind !== 192
                || superCallExpression.left.kind !== 179) {
                ts.Debug.fail("Assumed generated super call would have form 'super.call(...) || this'.");
            }
            ts.setCommentRange(returnStatement, ts.getCommentRange(ts.setEmitFlags(superCallExpression.left, 1536)));
            statements.push(returnStatement);
            return 2;
        }
        captureThisForNode(statements, ctor, superCallExpression || createActualThis(), firstStatement);
        if (superCallExpression) {
            return 1;
        }
        return 0;
    }
    function createActualThis() {
        return ts.setEmitFlags(ts.createThis(), 4);
    }
    function createDefaultSuperCallOrThis() {
        return ts.createLogicalOr(ts.createLogicalAnd(ts.createStrictInequality(ts.createIdentifier("_super"), ts.createNull()), ts.createFunctionApply(ts.createIdentifier("_super"), createActualThis(), ts.createIdentifier("arguments"))), createActualThis());
    }
    function visitParameter(node) {
        if (node.dotDotDotToken) {
            return undefined;
        }
        else if (ts.isBindingPattern(node.name)) {
            return ts.setOriginalNode(ts.createParameter(undefined, undefined, undefined, ts.getGeneratedNameForNode(node), undefined, undefined, undefined, node), node);
        }
        else if (node.initializer) {
            return ts.setOriginalNode(ts.createParameter(undefined, undefined, undefined, node.name, undefined, undefined, undefined, node), node);
        }
        else {
            return node;
        }
    }
    function shouldAddDefaultValueAssignments(node) {
        return (node.transformFlags & 131072) !== 0;
    }
    function addDefaultValueAssignmentsIfNeeded(statements, node) {
        if (!shouldAddDefaultValueAssignments(node)) {
            return;
        }
        for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
            var parameter = _a[_i];
            var name_36 = parameter.name, initializer = parameter.initializer, dotDotDotToken = parameter.dotDotDotToken;
            if (dotDotDotToken) {
                continue;
            }
            if (ts.isBindingPattern(name_36)) {
                addDefaultValueAssignmentForBindingPattern(statements, parameter, name_36, initializer);
            }
            else if (initializer) {
                addDefaultValueAssignmentForInitializer(statements, parameter, name_36, initializer);
            }
        }
    }
    function addDefaultValueAssignmentForBindingPattern(statements, parameter, name, initializer) {
        var temp = ts.getGeneratedNameForNode(parameter);
        if (name.elements.length > 0) {
            statements.push(ts.setEmitFlags(ts.createVariableStatement(undefined, ts.createVariableDeclarationList(ts.flattenDestructuringBinding(parameter, visitor, context, 0, temp))), 524288));
        }
        else if (initializer) {
            statements.push(ts.setEmitFlags(ts.createStatement(ts.createAssignment(temp, ts.visitNode(initializer, visitor, ts.isExpression))), 524288));
        }
    }
    function addDefaultValueAssignmentForInitializer(statements, parameter, name, initializer) {
        initializer = ts.visitNode(initializer, visitor, ts.isExpression);
        var statement = ts.createIf(ts.createTypeCheck(ts.getSynthesizedClone(name), "undefined"), ts.setEmitFlags(ts.createBlock([
            ts.createStatement(ts.createAssignment(ts.setEmitFlags(ts.getMutableClone(name), 48), ts.setEmitFlags(initializer, 48 | ts.getEmitFlags(initializer)), parameter))
        ], parameter), 1 | 32 | 384), undefined, parameter);
        statement.startsOnNewLine = true;
        ts.setEmitFlags(statement, 384 | 32 | 524288);
        statements.push(statement);
    }
    function shouldAddRestParameter(node, inConstructorWithSynthesizedSuper) {
        return node && node.dotDotDotToken && node.name.kind === 70 && !inConstructorWithSynthesizedSuper;
    }
    function addRestParameterIfNeeded(statements, node, inConstructorWithSynthesizedSuper) {
        var parameter = ts.lastOrUndefined(node.parameters);
        if (!shouldAddRestParameter(parameter, inConstructorWithSynthesizedSuper)) {
            return;
        }
        var declarationName = ts.getMutableClone(parameter.name);
        ts.setEmitFlags(declarationName, 48);
        var expressionName = ts.getSynthesizedClone(parameter.name);
        var restIndex = node.parameters.length - 1;
        var temp = ts.createLoopVariable();
        statements.push(ts.setEmitFlags(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
            ts.createVariableDeclaration(declarationName, undefined, ts.createArrayLiteral([]))
        ]), parameter), 524288));
        var forStatement = ts.createFor(ts.createVariableDeclarationList([
            ts.createVariableDeclaration(temp, undefined, ts.createLiteral(restIndex))
        ], parameter), ts.createLessThan(temp, ts.createPropertyAccess(ts.createIdentifier("arguments"), "length"), parameter), ts.createPostfixIncrement(temp, parameter), ts.createBlock([
            ts.startOnNewLine(ts.createStatement(ts.createAssignment(ts.createElementAccess(expressionName, restIndex === 0
                ? temp
                : ts.createSubtract(temp, ts.createLiteral(restIndex))), ts.createElementAccess(ts.createIdentifier("arguments"), temp)), parameter))
        ]));
        ts.setEmitFlags(forStatement, 524288);
        ts.startOnNewLine(forStatement);
        statements.push(forStatement);
    }
    function addCaptureThisForNodeIfNeeded(statements, node) {
        if (node.transformFlags & 32768 && node.kind !== 185) {
            captureThisForNode(statements, node, ts.createThis());
        }
    }
    function captureThisForNode(statements, node, initializer, originalStatement) {
        enableSubstitutionsForCapturedThis();
        var captureThisStatement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
            ts.createVariableDeclaration("_this", undefined, initializer)
        ]), originalStatement);
        ts.setEmitFlags(captureThisStatement, 1536 | 524288);
        ts.setSourceMapRange(captureThisStatement, node);
        statements.push(captureThisStatement);
    }
    function addClassMembers(statements, node) {
        for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
            var member = _a[_i];
            switch (member.kind) {
                case 203:
                    statements.push(transformSemicolonClassElementToStatement(member));
                    break;
                case 149:
                    statements.push(transformClassMethodDeclarationToStatement(getClassMemberPrefix(node, member), member));
                    break;
                case 151:
                case 152:
                    var accessors = ts.getAllAccessorDeclarations(node.members, member);
                    if (member === accessors.firstAccessor) {
                        statements.push(transformAccessorsToStatement(getClassMemberPrefix(node, member), accessors));
                    }
                    break;
                case 150:
                    break;
                default:
                    ts.Debug.failBadSyntaxKind(node);
                    break;
            }
        }
    }
    function transformSemicolonClassElementToStatement(member) {
        return ts.createEmptyStatement(member);
    }
    function transformClassMethodDeclarationToStatement(receiver, member) {
        var commentRange = ts.getCommentRange(member);
        var sourceMapRange = ts.getSourceMapRange(member);
        var memberName = ts.createMemberAccessForPropertyName(receiver, ts.visitNode(member.name, visitor, ts.isPropertyName), member.name);
        var memberFunction = transformFunctionLikeToExpression(member, member, undefined);
        ts.setEmitFlags(memberFunction, 1536);
        ts.setSourceMapRange(memberFunction, sourceMapRange);
        var statement = ts.createStatement(ts.createAssignment(memberName, memberFunction), member);
        ts.setOriginalNode(statement, member);
        ts.setCommentRange(statement, commentRange);
        ts.setEmitFlags(statement, 48);
        return statement;
    }
    function transformAccessorsToStatement(receiver, accessors) {
        var statement = ts.createStatement(transformAccessorsToExpression(receiver, accessors, false), ts.getSourceMapRange(accessors.firstAccessor));
        ts.setEmitFlags(statement, 1536);
        return statement;
    }
    function transformAccessorsToExpression(receiver, _a, startsOnNewLine) {
        var firstAccessor = _a.firstAccessor, getAccessor = _a.getAccessor, setAccessor = _a.setAccessor;
        var target = ts.getMutableClone(receiver);
        ts.setEmitFlags(target, 1536 | 32);
        ts.setSourceMapRange(target, firstAccessor.name);
        var propertyName = ts.createExpressionForPropertyName(ts.visitNode(firstAccessor.name, visitor, ts.isPropertyName));
        ts.setEmitFlags(propertyName, 1536 | 16);
        ts.setSourceMapRange(propertyName, firstAccessor.name);
        var properties = [];
        if (getAccessor) {
            var getterFunction = transformFunctionLikeToExpression(getAccessor, undefined, undefined);
            ts.setSourceMapRange(getterFunction, ts.getSourceMapRange(getAccessor));
            ts.setEmitFlags(getterFunction, 512);
            var getter = ts.createPropertyAssignment("get", getterFunction);
            ts.setCommentRange(getter, ts.getCommentRange(getAccessor));
            properties.push(getter);
        }
        if (setAccessor) {
            var setterFunction = transformFunctionLikeToExpression(setAccessor, undefined, undefined);
            ts.setSourceMapRange(setterFunction, ts.getSourceMapRange(setAccessor));
            ts.setEmitFlags(setterFunction, 512);
            var setter = ts.createPropertyAssignment("set", setterFunction);
            ts.setCommentRange(setter, ts.getCommentRange(setAccessor));
            properties.push(setter);
        }
        properties.push(ts.createPropertyAssignment("enumerable", ts.createLiteral(true)), ts.createPropertyAssignment("configurable", ts.createLiteral(true)));
        var call = ts.createCall(ts.createPropertyAccess(ts.createIdentifier("Object"), "defineProperty"), undefined, [
            target,
            propertyName,
            ts.createObjectLiteral(properties, undefined, true)
        ]);
        if (startsOnNewLine) {
            call.startsOnNewLine = true;
        }
        return call;
    }
    function visitArrowFunction(node) {
        if (node.transformFlags & 16384) {
            enableSubstitutionsForCapturedThis();
        }
        var func = ts.createFunctionExpression(undefined, undefined, undefined, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node), node);
        ts.setOriginalNode(func, node);
        ts.setEmitFlags(func, 8);
        return func;
    }
    function visitFunctionExpression(node) {
        return ts.updateFunctionExpression(node, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, node.transformFlags & 64
            ? transformFunctionBody(node)
            : ts.visitFunctionBody(node.body, visitor, context));
    }
    function visitFunctionDeclaration(node) {
        return ts.updateFunctionDeclaration(node, undefined, node.modifiers, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, node.transformFlags & 64
            ? transformFunctionBody(node)
            : ts.visitFunctionBody(node.body, visitor, context));
    }
    function transformFunctionLikeToExpression(node, location, name) {
        var savedContainingNonArrowFunction = enclosingNonArrowFunction;
        if (node.kind !== 185) {
            enclosingNonArrowFunction = node;
        }
        var expression = ts.setOriginalNode(ts.createFunctionExpression(undefined, node.asteriskToken, name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, saveStateAndInvoke(node, transformFunctionBody), location), node);
        enclosingNonArrowFunction = savedContainingNonArrowFunction;
        return expression;
    }
    function transformFunctionBody(node) {
        var multiLine = false;
        var singleLine = false;
        var statementsLocation;
        var closeBraceLocation;
        var statements = [];
        var body = node.body;
        var statementOffset;
        resumeLexicalEnvironment();
        if (ts.isBlock(body)) {
            statementOffset = ts.addPrologueDirectives(statements, body.statements, false, visitor);
        }
        addCaptureThisForNodeIfNeeded(statements, node);
        addDefaultValueAssignmentsIfNeeded(statements, node);
        addRestParameterIfNeeded(statements, node, false);
        if (!multiLine && statements.length > 0) {
            multiLine = true;
        }
        if (ts.isBlock(body)) {
            statementsLocation = body.statements;
            ts.addRange(statements, ts.visitNodes(body.statements, visitor, ts.isStatement, statementOffset));
            if (!multiLine && body.multiLine) {
                multiLine = true;
            }
        }
        else {
            ts.Debug.assert(node.kind === 185);
            statementsLocation = ts.moveRangeEnd(body, -1);
            var equalsGreaterThanToken = node.equalsGreaterThanToken;
            if (!ts.nodeIsSynthesized(equalsGreaterThanToken) && !ts.nodeIsSynthesized(body)) {
                if (ts.rangeEndIsOnSameLineAsRangeStart(equalsGreaterThanToken, body, currentSourceFile)) {
                    singleLine = true;
                }
                else {
                    multiLine = true;
                }
            }
            var expression = ts.visitNode(body, visitor, ts.isExpression);
            var returnStatement = ts.createReturn(expression, body);
            ts.setEmitFlags(returnStatement, 384 | 32 | 1024);
            statements.push(returnStatement);
            closeBraceLocation = body;
        }
        var lexicalEnvironment = context.endLexicalEnvironment();
        ts.addRange(statements, lexicalEnvironment);
        if (!multiLine && lexicalEnvironment && lexicalEnvironment.length) {
            multiLine = true;
        }
        var block = ts.createBlock(ts.createNodeArray(statements, statementsLocation), node.body, multiLine);
        if (!multiLine && singleLine) {
            ts.setEmitFlags(block, 1);
        }
        if (closeBraceLocation) {
            ts.setTokenSourceMapRange(block, 17, closeBraceLocation);
        }
        ts.setOriginalNode(block, node.body);
        return block;
    }
    function visitExpressionStatement(node) {
        switch (node.expression.kind) {
            case 183:
                return ts.updateStatement(node, visitParenthesizedExpression(node.expression, false));
            case 192:
                return ts.updateStatement(node, visitBinaryExpression(node.expression, false));
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitParenthesizedExpression(node, needsDestructuringValue) {
        if (!needsDestructuringValue) {
            switch (node.expression.kind) {
                case 183:
                    return ts.updateParen(node, visitParenthesizedExpression(node.expression, false));
                case 192:
                    return ts.updateParen(node, visitBinaryExpression(node.expression, false));
            }
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitBinaryExpression(node, needsDestructuringValue) {
        if (ts.isDestructuringAssignment(node)) {
            return ts.flattenDestructuringAssignment(node, visitor, context, 0, needsDestructuringValue);
        }
    }
    function visitVariableStatement(node) {
        if (convertedLoopState && (ts.getCombinedNodeFlags(node.declarationList) & 3) == 0) {
            var assignments = void 0;
            for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
                var decl = _a[_i];
                hoistVariableDeclarationDeclaredInConvertedLoop(convertedLoopState, decl);
                if (decl.initializer) {
                    var assignment = void 0;
                    if (ts.isBindingPattern(decl.name)) {
                        assignment = ts.flattenDestructuringAssignment(decl, visitor, context, 0);
                    }
                    else {
                        assignment = ts.createBinary(decl.name, 57, ts.visitNode(decl.initializer, visitor, ts.isExpression));
                    }
                    (assignments || (assignments = [])).push(assignment);
                }
            }
            if (assignments) {
                return ts.createStatement(ts.reduceLeft(assignments, function (acc, v) { return ts.createBinary(v, 25, acc); }), node);
            }
            else {
                return undefined;
            }
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitVariableDeclarationList(node) {
        if (node.flags & 3) {
            enableSubstitutionsForBlockScopedBindings();
        }
        var declarations = ts.flatten(ts.map(node.declarations, node.flags & 1
            ? visitVariableDeclarationInLetDeclarationList
            : visitVariableDeclaration));
        var declarationList = ts.createVariableDeclarationList(declarations, node);
        ts.setOriginalNode(declarationList, node);
        ts.setCommentRange(declarationList, node);
        if (node.transformFlags & 8388608
            && (ts.isBindingPattern(node.declarations[0].name)
                || ts.isBindingPattern(ts.lastOrUndefined(node.declarations).name))) {
            var firstDeclaration = ts.firstOrUndefined(declarations);
            var lastDeclaration = ts.lastOrUndefined(declarations);
            ts.setSourceMapRange(declarationList, ts.createRange(firstDeclaration.pos, lastDeclaration.end));
        }
        return declarationList;
    }
    function shouldEmitExplicitInitializerForLetDeclaration(node) {
        var flags = resolver.getNodeCheckFlags(node);
        var isCapturedInFunction = flags & 131072;
        var isDeclaredInLoop = flags & 262144;
        var emittedAsTopLevel = ts.isBlockScopedContainerTopLevel(enclosingBlockScopeContainer)
            || (isCapturedInFunction
                && isDeclaredInLoop
                && ts.isBlock(enclosingBlockScopeContainer)
                && ts.isIterationStatement(enclosingBlockScopeContainerParent, false));
        var emitExplicitInitializer = !emittedAsTopLevel
            && enclosingBlockScopeContainer.kind !== 212
            && enclosingBlockScopeContainer.kind !== 213
            && (!resolver.isDeclarationWithCollidingName(node)
                || (isDeclaredInLoop
                    && !isCapturedInFunction
                    && !ts.isIterationStatement(enclosingBlockScopeContainer, false)));
        return emitExplicitInitializer;
    }
    function visitVariableDeclarationInLetDeclarationList(node) {
        var name = node.name;
        if (ts.isBindingPattern(name)) {
            return visitVariableDeclaration(node);
        }
        if (!node.initializer && shouldEmitExplicitInitializerForLetDeclaration(node)) {
            var clone_3 = ts.getMutableClone(node);
            clone_3.initializer = ts.createVoidZero();
            return clone_3;
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitVariableDeclaration(node) {
        if (ts.isBindingPattern(node.name)) {
            var hoistTempVariables = enclosingVariableStatement
                && ts.hasModifier(enclosingVariableStatement, 1);
            return ts.flattenDestructuringBinding(node, visitor, context, 0, undefined, hoistTempVariables);
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitLabeledStatement(node) {
        if (convertedLoopState) {
            if (!convertedLoopState.labels) {
                convertedLoopState.labels = ts.createMap();
            }
            convertedLoopState.labels[node.label.text] = node.label.text;
        }
        var result;
        if (ts.isIterationStatement(node.statement, false) && shouldConvertIterationStatementBody(node.statement)) {
            result = ts.visitNodes(ts.createNodeArray([node.statement]), visitor, ts.isStatement);
        }
        else {
            result = ts.visitEachChild(node, visitor, context);
        }
        if (convertedLoopState) {
            convertedLoopState.labels[node.label.text] = undefined;
        }
        return result;
    }
    function visitDoStatement(node) {
        return convertIterationStatementBodyIfNecessary(node);
    }
    function visitWhileStatement(node) {
        return convertIterationStatementBodyIfNecessary(node);
    }
    function visitForStatement(node) {
        return convertIterationStatementBodyIfNecessary(node);
    }
    function visitForInStatement(node) {
        return convertIterationStatementBodyIfNecessary(node);
    }
    function visitForOfStatement(node) {
        return convertIterationStatementBodyIfNecessary(node, convertForOfToFor);
    }
    function convertForOfToFor(node, convertedLoopBodyStatements) {
        var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
        var initializer = node.initializer;
        var statements = [];
        var counter = ts.createLoopVariable();
        var rhsReference = expression.kind === 70
            ? ts.createUniqueName(expression.text)
            : ts.createTempVariable(undefined);
        var elementAccess = ts.createElementAccess(rhsReference, counter);
        if (ts.isVariableDeclarationList(initializer)) {
            if (initializer.flags & 3) {
                enableSubstitutionsForBlockScopedBindings();
            }
            var firstOriginalDeclaration = ts.firstOrUndefined(initializer.declarations);
            if (firstOriginalDeclaration && ts.isBindingPattern(firstOriginalDeclaration.name)) {
                var declarations = ts.flattenDestructuringBinding(firstOriginalDeclaration, visitor, context, 0, elementAccess);
                var declarationList = ts.createVariableDeclarationList(declarations, initializer);
                ts.setOriginalNode(declarationList, initializer);
                var firstDeclaration = declarations[0];
                var lastDeclaration = ts.lastOrUndefined(declarations);
                ts.setSourceMapRange(declarationList, ts.createRange(firstDeclaration.pos, lastDeclaration.end));
                statements.push(ts.createVariableStatement(undefined, declarationList));
            }
            else {
                statements.push(ts.createVariableStatement(undefined, ts.setOriginalNode(ts.createVariableDeclarationList([
                    ts.createVariableDeclaration(firstOriginalDeclaration ? firstOriginalDeclaration.name : ts.createTempVariable(undefined), undefined, ts.createElementAccess(rhsReference, counter))
                ], ts.moveRangePos(initializer, -1)), initializer), ts.moveRangeEnd(initializer, -1)));
            }
        }
        else {
            var assignment = ts.createAssignment(initializer, elementAccess);
            if (ts.isDestructuringAssignment(assignment)) {
                statements.push(ts.createStatement(ts.flattenDestructuringAssignment(assignment, visitor, context, 0)));
            }
            else {
                assignment.end = initializer.end;
                statements.push(ts.createStatement(assignment, ts.moveRangeEnd(initializer, -1)));
            }
        }
        var bodyLocation;
        var statementsLocation;
        if (convertedLoopBodyStatements) {
            ts.addRange(statements, convertedLoopBodyStatements);
        }
        else {
            var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
            if (ts.isBlock(statement)) {
                ts.addRange(statements, statement.statements);
                bodyLocation = statement;
                statementsLocation = statement.statements;
            }
            else {
                statements.push(statement);
            }
        }
        ts.setEmitFlags(expression, 48 | ts.getEmitFlags(expression));
        var body = ts.createBlock(ts.createNodeArray(statements, statementsLocation), bodyLocation);
        ts.setEmitFlags(body, 48 | 384);
        var forStatement = ts.createFor(ts.setEmitFlags(ts.createVariableDeclarationList([
            ts.createVariableDeclaration(counter, undefined, ts.createLiteral(0), ts.moveRangePos(node.expression, -1)),
            ts.createVariableDeclaration(rhsReference, undefined, expression, node.expression)
        ], node.expression), 1048576), ts.createLessThan(counter, ts.createPropertyAccess(rhsReference, "length"), node.expression), ts.createPostfixIncrement(counter, node.expression), body, node);
        ts.setEmitFlags(forStatement, 256);
        return forStatement;
    }
    function visitObjectLiteralExpression(node) {
        var properties = node.properties;
        var numProperties = properties.length;
        var numInitialProperties = numProperties;
        for (var i = 0; i < numProperties; i++) {
            var property = properties[i];
            if (property.transformFlags & 16777216
                || property.name.kind === 142) {
                numInitialProperties = i;
                break;
            }
        }
        ts.Debug.assert(numInitialProperties !== numProperties);
        var temp = ts.createTempVariable(hoistVariableDeclaration);
        var expressions = [];
        var assignment = ts.createAssignment(temp, ts.setEmitFlags(ts.createObjectLiteral(ts.visitNodes(properties, visitor, ts.isObjectLiteralElementLike, 0, numInitialProperties), undefined, node.multiLine), 32768));
        if (node.multiLine) {
            assignment.startsOnNewLine = true;
        }
        expressions.push(assignment);
        addObjectLiteralMembers(expressions, node, temp, numInitialProperties);
        expressions.push(node.multiLine ? ts.startOnNewLine(ts.getMutableClone(temp)) : temp);
        return ts.inlineExpressions(expressions);
    }
    function shouldConvertIterationStatementBody(node) {
        return (resolver.getNodeCheckFlags(node) & 65536) !== 0;
    }
    function hoistVariableDeclarationDeclaredInConvertedLoop(state, node) {
        if (!state.hoistedLocalVariables) {
            state.hoistedLocalVariables = [];
        }
        visit(node.name);
        function visit(node) {
            if (node.kind === 70) {
                state.hoistedLocalVariables.push(node);
            }
            else {
                for (var _i = 0, _a = node.elements; _i < _a.length; _i++) {
                    var element = _a[_i];
                    if (!ts.isOmittedExpression(element)) {
                        visit(element.name);
                    }
                }
            }
        }
    }
    function convertIterationStatementBodyIfNecessary(node, convert) {
        if (!shouldConvertIterationStatementBody(node)) {
            var saveAllowedNonLabeledJumps = void 0;
            if (convertedLoopState) {
                saveAllowedNonLabeledJumps = convertedLoopState.allowedNonLabeledJumps;
                convertedLoopState.allowedNonLabeledJumps = 2 | 4;
            }
            var result = convert ? convert(node, undefined) : ts.visitEachChild(node, visitor, context);
            if (convertedLoopState) {
                convertedLoopState.allowedNonLabeledJumps = saveAllowedNonLabeledJumps;
            }
            return result;
        }
        var functionName = ts.createUniqueName("_loop");
        var loopInitializer;
        switch (node.kind) {
            case 211:
            case 212:
            case 213:
                var initializer = node.initializer;
                if (initializer && initializer.kind === 224) {
                    loopInitializer = initializer;
                }
                break;
        }
        var loopParameters = [];
        var loopOutParameters = [];
        if (loopInitializer && (ts.getCombinedNodeFlags(loopInitializer) & 3)) {
            for (var _i = 0, _a = loopInitializer.declarations; _i < _a.length; _i++) {
                var decl = _a[_i];
                processLoopVariableDeclaration(decl, loopParameters, loopOutParameters);
            }
        }
        var outerConvertedLoopState = convertedLoopState;
        convertedLoopState = { loopOutParameters: loopOutParameters };
        if (outerConvertedLoopState) {
            if (outerConvertedLoopState.argumentsName) {
                convertedLoopState.argumentsName = outerConvertedLoopState.argumentsName;
            }
            if (outerConvertedLoopState.thisName) {
                convertedLoopState.thisName = outerConvertedLoopState.thisName;
            }
            if (outerConvertedLoopState.hoistedLocalVariables) {
                convertedLoopState.hoistedLocalVariables = outerConvertedLoopState.hoistedLocalVariables;
            }
        }
        startLexicalEnvironment();
        var loopBody = ts.visitNode(node.statement, visitor, ts.isStatement, false, ts.liftToBlock);
        var lexicalEnvironment = endLexicalEnvironment();
        var currentState = convertedLoopState;
        convertedLoopState = outerConvertedLoopState;
        if (loopOutParameters.length || lexicalEnvironment) {
            var statements_4 = ts.isBlock(loopBody) ? loopBody.statements.slice() : [loopBody];
            if (loopOutParameters.length) {
                copyOutParameters(loopOutParameters, 1, statements_4);
            }
            ts.addRange(statements_4, lexicalEnvironment);
            loopBody = ts.createBlock(statements_4, undefined, true);
        }
        if (ts.isBlock(loopBody)) {
            loopBody.multiLine = true;
        }
        else {
            loopBody = ts.createBlock([loopBody], undefined, true);
        }
        var isAsyncBlockContainingAwait = enclosingNonArrowFunction
            && (ts.getEmitFlags(enclosingNonArrowFunction) & 131072) !== 0
            && (node.statement.transformFlags & 16777216) !== 0;
        var loopBodyFlags = 0;
        if (currentState.containsLexicalThis) {
            loopBodyFlags |= 8;
        }
        if (isAsyncBlockContainingAwait) {
            loopBodyFlags |= 131072;
        }
        var convertedLoopVariable = ts.createVariableStatement(undefined, ts.setEmitFlags(ts.createVariableDeclarationList([
            ts.createVariableDeclaration(functionName, undefined, ts.setEmitFlags(ts.createFunctionExpression(undefined, isAsyncBlockContainingAwait ? ts.createToken(38) : undefined, undefined, undefined, loopParameters, undefined, loopBody), loopBodyFlags))
        ]), 1048576));
        var statements = [convertedLoopVariable];
        var extraVariableDeclarations;
        if (currentState.argumentsName) {
            if (outerConvertedLoopState) {
                outerConvertedLoopState.argumentsName = currentState.argumentsName;
            }
            else {
                (extraVariableDeclarations || (extraVariableDeclarations = [])).push(ts.createVariableDeclaration(currentState.argumentsName, undefined, ts.createIdentifier("arguments")));
            }
        }
        if (currentState.thisName) {
            if (outerConvertedLoopState) {
                outerConvertedLoopState.thisName = currentState.thisName;
            }
            else {
                (extraVariableDeclarations || (extraVariableDeclarations = [])).push(ts.createVariableDeclaration(currentState.thisName, undefined, ts.createIdentifier("this")));
            }
        }
        if (currentState.hoistedLocalVariables) {
            if (outerConvertedLoopState) {
                outerConvertedLoopState.hoistedLocalVariables = currentState.hoistedLocalVariables;
            }
            else {
                if (!extraVariableDeclarations) {
                    extraVariableDeclarations = [];
                }
                for (var _b = 0, _c = currentState.hoistedLocalVariables; _b < _c.length; _b++) {
                    var identifier = _c[_b];
                    extraVariableDeclarations.push(ts.createVariableDeclaration(identifier));
                }
            }
        }
        if (loopOutParameters.length) {
            if (!extraVariableDeclarations) {
                extraVariableDeclarations = [];
            }
            for (var _d = 0, loopOutParameters_1 = loopOutParameters; _d < loopOutParameters_1.length; _d++) {
                var outParam = loopOutParameters_1[_d];
                extraVariableDeclarations.push(ts.createVariableDeclaration(outParam.outParamName));
            }
        }
        if (extraVariableDeclarations) {
            statements.push(ts.createVariableStatement(undefined, ts.createVariableDeclarationList(extraVariableDeclarations)));
        }
        var convertedLoopBodyStatements = generateCallToConvertedLoop(functionName, loopParameters, currentState, isAsyncBlockContainingAwait);
        var loop;
        if (convert) {
            loop = convert(node, convertedLoopBodyStatements);
        }
        else {
            loop = ts.getMutableClone(node);
            loop.statement = undefined;
            loop = ts.visitEachChild(loop, visitor, context);
            loop.statement = ts.createBlock(convertedLoopBodyStatements, undefined, true);
            loop.transformFlags = 0;
            ts.aggregateTransformFlags(loop);
        }
        statements.push(currentParent.kind === 219
            ? ts.createLabel(currentParent.label, loop)
            : loop);
        return statements;
    }
    function copyOutParameter(outParam, copyDirection) {
        var source = copyDirection === 0 ? outParam.outParamName : outParam.originalName;
        var target = copyDirection === 0 ? outParam.originalName : outParam.outParamName;
        return ts.createBinary(target, 57, source);
    }
    function copyOutParameters(outParams, copyDirection, statements) {
        for (var _i = 0, outParams_1 = outParams; _i < outParams_1.length; _i++) {
            var outParam = outParams_1[_i];
            statements.push(ts.createStatement(copyOutParameter(outParam, copyDirection)));
        }
    }
    function generateCallToConvertedLoop(loopFunctionExpressionName, parameters, state, isAsyncBlockContainingAwait) {
        var outerConvertedLoopState = convertedLoopState;
        var statements = [];
        var isSimpleLoop = !(state.nonLocalJumps & ~4) &&
            !state.labeledNonLocalBreaks &&
            !state.labeledNonLocalContinues;
        var call = ts.createCall(loopFunctionExpressionName, undefined, ts.map(parameters, function (p) { return p.name; }));
        var callResult = isAsyncBlockContainingAwait ? ts.createYield(ts.createToken(38), call) : call;
        if (isSimpleLoop) {
            statements.push(ts.createStatement(callResult));
            copyOutParameters(state.loopOutParameters, 0, statements);
        }
        else {
            var loopResultName = ts.createUniqueName("state");
            var stateVariable = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([ts.createVariableDeclaration(loopResultName, undefined, callResult)]));
            statements.push(stateVariable);
            copyOutParameters(state.loopOutParameters, 0, statements);
            if (state.nonLocalJumps & 8) {
                var returnStatement = void 0;
                if (outerConvertedLoopState) {
                    outerConvertedLoopState.nonLocalJumps |= 8;
                    returnStatement = ts.createReturn(loopResultName);
                }
                else {
                    returnStatement = ts.createReturn(ts.createPropertyAccess(loopResultName, "value"));
                }
                statements.push(ts.createIf(ts.createBinary(ts.createTypeOf(loopResultName), 33, ts.createLiteral("object")), returnStatement));
            }
            if (state.nonLocalJumps & 2) {
                statements.push(ts.createIf(ts.createBinary(loopResultName, 33, ts.createLiteral("break")), ts.createBreak()));
            }
            if (state.labeledNonLocalBreaks || state.labeledNonLocalContinues) {
                var caseClauses = [];
                processLabeledJumps(state.labeledNonLocalBreaks, true, loopResultName, outerConvertedLoopState, caseClauses);
                processLabeledJumps(state.labeledNonLocalContinues, false, loopResultName, outerConvertedLoopState, caseClauses);
                statements.push(ts.createSwitch(loopResultName, ts.createCaseBlock(caseClauses)));
            }
        }
        return statements;
    }
    function setLabeledJump(state, isBreak, labelText, labelMarker) {
        if (isBreak) {
            if (!state.labeledNonLocalBreaks) {
                state.labeledNonLocalBreaks = ts.createMap();
            }
            state.labeledNonLocalBreaks[labelText] = labelMarker;
        }
        else {
            if (!state.labeledNonLocalContinues) {
                state.labeledNonLocalContinues = ts.createMap();
            }
            state.labeledNonLocalContinues[labelText] = labelMarker;
        }
    }
    function processLabeledJumps(table, isBreak, loopResultName, outerLoop, caseClauses) {
        if (!table) {
            return;
        }
        for (var labelText in table) {
            var labelMarker = table[labelText];
            var statements = [];
            if (!outerLoop || (outerLoop.labels && outerLoop.labels[labelText])) {
                var label = ts.createIdentifier(labelText);
                statements.push(isBreak ? ts.createBreak(label) : ts.createContinue(label));
            }
            else {
                setLabeledJump(outerLoop, isBreak, labelText, labelMarker);
                statements.push(ts.createReturn(loopResultName));
            }
            caseClauses.push(ts.createCaseClause(ts.createLiteral(labelMarker), statements));
        }
    }
    function processLoopVariableDeclaration(decl, loopParameters, loopOutParameters) {
        var name = decl.name;
        if (ts.isBindingPattern(name)) {
            for (var _i = 0, _a = name.elements; _i < _a.length; _i++) {
                var element = _a[_i];
                if (!ts.isOmittedExpression(element)) {
                    processLoopVariableDeclaration(element, loopParameters, loopOutParameters);
                }
            }
        }
        else {
            loopParameters.push(ts.createParameter(undefined, undefined, undefined, name));
            if (resolver.getNodeCheckFlags(decl) & 2097152) {
                var outParamName = ts.createUniqueName("out_" + name.text);
                loopOutParameters.push({ originalName: name, outParamName: outParamName });
            }
        }
    }
    function addObjectLiteralMembers(expressions, node, receiver, start) {
        var properties = node.properties;
        var numProperties = properties.length;
        for (var i = start; i < numProperties; i++) {
            var property = properties[i];
            switch (property.kind) {
                case 151:
                case 152:
                    var accessors = ts.getAllAccessorDeclarations(node.properties, property);
                    if (property === accessors.firstAccessor) {
                        expressions.push(transformAccessorsToExpression(receiver, accessors, node.multiLine));
                    }
                    break;
                case 257:
                    expressions.push(transformPropertyAssignmentToExpression(property, receiver, node.multiLine));
                    break;
                case 258:
                    expressions.push(transformShorthandPropertyAssignmentToExpression(property, receiver, node.multiLine));
                    break;
                case 149:
                    expressions.push(transformObjectLiteralMethodDeclarationToExpression(property, receiver, node.multiLine));
                    break;
                default:
                    ts.Debug.failBadSyntaxKind(node);
                    break;
            }
        }
    }
    function transformPropertyAssignmentToExpression(property, receiver, startsOnNewLine) {
        var expression = ts.createAssignment(ts.createMemberAccessForPropertyName(receiver, ts.visitNode(property.name, visitor, ts.isPropertyName)), ts.visitNode(property.initializer, visitor, ts.isExpression), property);
        if (startsOnNewLine) {
            expression.startsOnNewLine = true;
        }
        return expression;
    }
    function transformShorthandPropertyAssignmentToExpression(property, receiver, startsOnNewLine) {
        var expression = ts.createAssignment(ts.createMemberAccessForPropertyName(receiver, ts.visitNode(property.name, visitor, ts.isPropertyName)), ts.getSynthesizedClone(property.name), property);
        if (startsOnNewLine) {
            expression.startsOnNewLine = true;
        }
        return expression;
    }
    function transformObjectLiteralMethodDeclarationToExpression(method, receiver, startsOnNewLine) {
        var expression = ts.createAssignment(ts.createMemberAccessForPropertyName(receiver, ts.visitNode(method.name, visitor, ts.isPropertyName)), transformFunctionLikeToExpression(method, method, undefined), method);
        if (startsOnNewLine) {
            expression.startsOnNewLine = true;
        }
        return expression;
    }
    function visitCatchClause(node) {
        ts.Debug.assert(ts.isBindingPattern(node.variableDeclaration.name));
        var temp = ts.createTempVariable(undefined);
        var newVariableDeclaration = ts.createVariableDeclaration(temp, undefined, undefined, node.variableDeclaration);
        var vars = ts.flattenDestructuringBinding(node.variableDeclaration, visitor, context, 0, temp);
        var list = ts.createVariableDeclarationList(vars, node.variableDeclaration, node.variableDeclaration.flags);
        var destructure = ts.createVariableStatement(undefined, list);
        return ts.updateCatchClause(node, newVariableDeclaration, addStatementToStartOfBlock(node.block, destructure));
    }
    function addStatementToStartOfBlock(block, statement) {
        var transformedStatements = ts.visitNodes(block.statements, visitor, ts.isStatement);
        return ts.updateBlock(block, [statement].concat(transformedStatements));
    }
    function visitMethodDeclaration(node) {
        ts.Debug.assert(!ts.isComputedPropertyName(node.name));
        var functionExpression = transformFunctionLikeToExpression(node, ts.moveRangePos(node, -1), undefined);
        ts.setEmitFlags(functionExpression, 512 | ts.getEmitFlags(functionExpression));
        return ts.createPropertyAssignment(node.name, functionExpression, node);
    }
    function visitShorthandPropertyAssignment(node) {
        return ts.createPropertyAssignment(node.name, ts.getSynthesizedClone(node.name), node);
    }
    function visitYieldExpression(node) {
        return ts.visitEachChild(node, visitor, context);
    }
    function visitArrayLiteralExpression(node) {
        return transformAndSpreadElements(node.elements, true, node.multiLine, node.elements.hasTrailingComma);
    }
    function visitCallExpression(node) {
        return visitCallExpressionWithPotentialCapturedThisAssignment(node, true);
    }
    function visitImmediateSuperCallInBody(node) {
        return visitCallExpressionWithPotentialCapturedThisAssignment(node, false);
    }
    function visitCallExpressionWithPotentialCapturedThisAssignment(node, assignToCapturedThis) {
        var _a = ts.createCallBinding(node.expression, hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
        if (node.expression.kind === 96) {
            ts.setEmitFlags(thisArg, 4);
        }
        var resultingCall;
        if (node.transformFlags & 524288) {
            resultingCall = ts.createFunctionApply(ts.visitNode(target, visitor, ts.isExpression), ts.visitNode(thisArg, visitor, ts.isExpression), transformAndSpreadElements(node.arguments, false, false, false));
        }
        else {
            resultingCall = ts.createFunctionCall(ts.visitNode(target, visitor, ts.isExpression), ts.visitNode(thisArg, visitor, ts.isExpression), ts.visitNodes(node.arguments, visitor, ts.isExpression), node);
        }
        if (node.expression.kind === 96) {
            var actualThis = ts.createThis();
            ts.setEmitFlags(actualThis, 4);
            var initializer = ts.createLogicalOr(resultingCall, actualThis);
            return assignToCapturedThis
                ? ts.createAssignment(ts.createIdentifier("_this"), initializer)
                : initializer;
        }
        return resultingCall;
    }
    function visitNewExpression(node) {
        ts.Debug.assert((node.transformFlags & 524288) !== 0);
        var _a = ts.createCallBinding(ts.createPropertyAccess(node.expression, "bind"), hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
        return ts.createNew(ts.createFunctionApply(ts.visitNode(target, visitor, ts.isExpression), thisArg, transformAndSpreadElements(ts.createNodeArray([ts.createVoidZero()].concat(node.arguments)), false, false, false)), undefined, []);
    }
    function transformAndSpreadElements(elements, needsUniqueCopy, multiLine, hasTrailingComma) {
        var numElements = elements.length;
        var segments = ts.flatten(ts.spanMap(elements, partitionSpread, function (partition, visitPartition, _start, end) {
            return visitPartition(partition, multiLine, hasTrailingComma && end === numElements);
        }));
        if (segments.length === 1) {
            var firstElement = elements[0];
            return needsUniqueCopy && ts.isSpreadExpression(firstElement) && firstElement.expression.kind !== 175
                ? ts.createArraySlice(segments[0])
                : segments[0];
        }
        return ts.createArrayConcat(segments.shift(), segments);
    }
    function partitionSpread(node) {
        return ts.isSpreadExpression(node)
            ? visitSpanOfSpreads
            : visitSpanOfNonSpreads;
    }
    function visitSpanOfSpreads(chunk) {
        return ts.map(chunk, visitExpressionOfSpread);
    }
    function visitSpanOfNonSpreads(chunk, multiLine, hasTrailingComma) {
        return ts.createArrayLiteral(ts.visitNodes(ts.createNodeArray(chunk, undefined, hasTrailingComma), visitor, ts.isExpression), undefined, multiLine);
    }
    function visitSpreadElement(node) {
        return ts.visitNode(node.expression, visitor, ts.isExpression);
    }
    function visitExpressionOfSpread(node) {
        return ts.visitNode(node.expression, visitor, ts.isExpression);
    }
    function visitTemplateLiteral(node) {
        return ts.createLiteral(node.text, node);
    }
    function visitTaggedTemplateExpression(node) {
        var tag = ts.visitNode(node.tag, visitor, ts.isExpression);
        var temp = ts.createTempVariable(hoistVariableDeclaration);
        var templateArguments = [temp];
        var cookedStrings = [];
        var rawStrings = [];
        var template = node.template;
        if (ts.isNoSubstitutionTemplateLiteral(template)) {
            cookedStrings.push(ts.createLiteral(template.text));
            rawStrings.push(getRawLiteral(template));
        }
        else {
            cookedStrings.push(ts.createLiteral(template.head.text));
            rawStrings.push(getRawLiteral(template.head));
            for (var _i = 0, _a = template.templateSpans; _i < _a.length; _i++) {
                var templateSpan = _a[_i];
                cookedStrings.push(ts.createLiteral(templateSpan.literal.text));
                rawStrings.push(getRawLiteral(templateSpan.literal));
                templateArguments.push(ts.visitNode(templateSpan.expression, visitor, ts.isExpression));
            }
        }
        return ts.createParen(ts.inlineExpressions([
            ts.createAssignment(temp, ts.createArrayLiteral(cookedStrings)),
            ts.createAssignment(ts.createPropertyAccess(temp, "raw"), ts.createArrayLiteral(rawStrings)),
            ts.createCall(tag, undefined, templateArguments)
        ]));
    }
    function getRawLiteral(node) {
        var text = ts.getSourceTextOfNodeFromSourceFile(currentSourceFile, node);
        var isLast = node.kind === 12 || node.kind === 15;
        text = text.substring(1, text.length - (isLast ? 1 : 2));
        text = text.replace(/\r\n?/g, "\n");
        return ts.createLiteral(text, node);
    }
    function visitTemplateExpression(node) {
        var expressions = [];
        addTemplateHead(expressions, node);
        addTemplateSpans(expressions, node);
        var expression = ts.reduceLeft(expressions, ts.createAdd);
        if (ts.nodeIsSynthesized(expression)) {
            ts.setTextRange(expression, node);
        }
        return expression;
    }
    function shouldAddTemplateHead(node) {
        ts.Debug.assert(node.templateSpans.length !== 0);
        return node.head.text.length !== 0 || node.templateSpans[0].literal.text.length === 0;
    }
    function addTemplateHead(expressions, node) {
        if (!shouldAddTemplateHead(node)) {
            return;
        }
        expressions.push(ts.createLiteral(node.head.text));
    }
    function addTemplateSpans(expressions, node) {
        for (var _i = 0, _a = node.templateSpans; _i < _a.length; _i++) {
            var span_6 = _a[_i];
            expressions.push(ts.visitNode(span_6.expression, visitor, ts.isExpression));
            if (span_6.literal.text.length !== 0) {
                expressions.push(ts.createLiteral(span_6.literal.text));
            }
        }
    }
    function visitSuperKeyword() {
        return enclosingNonAsyncFunctionBody
            && ts.isClassElement(enclosingNonAsyncFunctionBody)
            && !ts.hasModifier(enclosingNonAsyncFunctionBody, 32)
            && currentParent.kind !== 179
            ? ts.createPropertyAccess(ts.createIdentifier("_super"), "prototype")
            : ts.createIdentifier("_super");
    }
    function onEmitNode(emitContext, node, emitCallback) {
        var savedEnclosingFunction = enclosingFunction;
        if (enabledSubstitutions & 1 && ts.isFunctionLike(node)) {
            enclosingFunction = node;
        }
        previousOnEmitNode(emitContext, node, emitCallback);
        enclosingFunction = savedEnclosingFunction;
    }
    function enableSubstitutionsForBlockScopedBindings() {
        if ((enabledSubstitutions & 2) === 0) {
            enabledSubstitutions |= 2;
            context.enableSubstitution(70);
        }
    }
    function enableSubstitutionsForCapturedThis() {
        if ((enabledSubstitutions & 1) === 0) {
            enabledSubstitutions |= 1;
            context.enableSubstitution(98);
            context.enableEmitNotification(150);
            context.enableEmitNotification(149);
            context.enableEmitNotification(151);
            context.enableEmitNotification(152);
            context.enableEmitNotification(185);
            context.enableEmitNotification(184);
            context.enableEmitNotification(225);
        }
    }
    function onSubstituteNode(emitContext, node) {
        node = previousOnSubstituteNode(emitContext, node);
        if (emitContext === 1) {
            return substituteExpression(node);
        }
        if (ts.isIdentifier(node)) {
            return substituteIdentifier(node);
        }
        return node;
    }
    function substituteIdentifier(node) {
        if (enabledSubstitutions & 2) {
            var original = ts.getParseTreeNode(node, ts.isIdentifier);
            if (original && isNameOfDeclarationWithCollidingName(original)) {
                return ts.getGeneratedNameForNode(original);
            }
        }
        return node;
    }
    function isNameOfDeclarationWithCollidingName(node) {
        var parent = node.parent;
        switch (parent.kind) {
            case 174:
            case 226:
            case 229:
            case 223:
                return parent.name === node
                    && resolver.isDeclarationWithCollidingName(parent);
        }
        return false;
    }
    function substituteExpression(node) {
        switch (node.kind) {
            case 70:
                return substituteExpressionIdentifier(node);
            case 98:
                return substituteThisKeyword(node);
        }
        return node;
    }
    function substituteExpressionIdentifier(node) {
        if (enabledSubstitutions & 2) {
            var declaration = resolver.getReferencedDeclarationWithCollidingName(node);
            if (declaration) {
                return ts.getGeneratedNameForNode(declaration.name);
            }
        }
        return node;
    }
    function substituteThisKeyword(node) {
        if (enabledSubstitutions & 1
            && enclosingFunction
            && ts.getEmitFlags(enclosingFunction) & 8) {
            return ts.createIdentifier("_this", node);
        }
        return node;
    }
    function getClassMemberPrefix(node, member) {
        var expression = ts.getLocalName(node);
        return ts.hasModifier(member, 32) ? expression : ts.createPropertyAccess(expression, "prototype");
    }
    function hasSynthesizedDefaultSuperCall(constructor, hasExtendsClause) {
        if (!constructor || !hasExtendsClause) {
            return false;
        }
        if (ts.some(constructor.parameters)) {
            return false;
        }
        var statement = ts.firstOrUndefined(constructor.body.statements);
        if (!statement || !ts.nodeIsSynthesized(statement) || statement.kind !== 207) {
            return false;
        }
        var statementExpression = statement.expression;
        if (!ts.nodeIsSynthesized(statementExpression) || statementExpression.kind !== 179) {
            return false;
        }
        var callTarget = statementExpression.expression;
        if (!ts.nodeIsSynthesized(callTarget) || callTarget.kind !== 96) {
            return false;
        }
        var callArgument = ts.singleOrUndefined(statementExpression.arguments);
        if (!callArgument || !ts.nodeIsSynthesized(callArgument) || callArgument.kind !== 196) {
            return false;
        }
        var expression = callArgument.expression;
        return ts.isIdentifier(expression) && expression.text === "arguments";
    }
}
ts.transformES2015 = transformES2015;
function createExtendsHelper(context, name) {
    context.requestEmitHelper(extendsHelper);
    return ts.createCall(ts.getHelperName("__extends"), undefined, [
        name,
        ts.createIdentifier("_super")
    ]);
}
var extendsHelper = {
    name: "typescript:extends",
    scoped: false,
    priority: 0,
    text: "\n            var __extends = (this && this.__extends) || function (d, b) {\n                for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];\n                function __() { this.constructor = d; }\n                d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n            };"
};

})(ts || (ts = {})); var ts; (function (ts) {

var instructionNames = ts.createMap((_a = {},
    _a[2] = "return",
    _a[3] = "break",
    _a[4] = "yield",
    _a[5] = "yield*",
    _a[7] = "endfinally",
    _a));
function transformGenerators(context) {
    var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistFunctionDeclaration = context.hoistFunctionDeclaration, hoistVariableDeclaration = context.hoistVariableDeclaration;
    var compilerOptions = context.getCompilerOptions();
    var languageVersion = ts.getEmitScriptTarget(compilerOptions);
    var resolver = context.getEmitResolver();
    var previousOnSubstituteNode = context.onSubstituteNode;
    context.onSubstituteNode = onSubstituteNode;
    var currentSourceFile;
    var renamedCatchVariables;
    var renamedCatchVariableDeclarations;
    var inGeneratorFunctionBody;
    var inStatementContainingYield;
    var blocks;
    var blockOffsets;
    var blockActions;
    var blockStack;
    var labelOffsets;
    var labelExpressions;
    var nextLabelId = 1;
    var operations;
    var operationArguments;
    var operationLocations;
    var state;
    var blockIndex = 0;
    var labelNumber = 0;
    var labelNumbers;
    var lastOperationWasAbrupt;
    var lastOperationWasCompletion;
    var clauses;
    var statements;
    var exceptionBlockStack;
    var currentExceptionBlock;
    var withBlockStack;
    return transformSourceFile;
    function transformSourceFile(node) {
        if (ts.isDeclarationFile(node)
            || (node.transformFlags & 512) === 0) {
            return node;
        }
        currentSourceFile = node;
        var visited = ts.visitEachChild(node, visitor, context);
        ts.addEmitHelpers(visited, context.readEmitHelpers());
        currentSourceFile = undefined;
        return visited;
    }
    function visitor(node) {
        var transformFlags = node.transformFlags;
        if (inStatementContainingYield) {
            return visitJavaScriptInStatementContainingYield(node);
        }
        else if (inGeneratorFunctionBody) {
            return visitJavaScriptInGeneratorFunctionBody(node);
        }
        else if (transformFlags & 256) {
            return visitGenerator(node);
        }
        else if (transformFlags & 512) {
            return ts.visitEachChild(node, visitor, context);
        }
        else {
            return node;
        }
    }
    function visitJavaScriptInStatementContainingYield(node) {
        switch (node.kind) {
            case 209:
                return visitDoStatement(node);
            case 210:
                return visitWhileStatement(node);
            case 218:
                return visitSwitchStatement(node);
            case 219:
                return visitLabeledStatement(node);
            default:
                return visitJavaScriptInGeneratorFunctionBody(node);
        }
    }
    function visitJavaScriptInGeneratorFunctionBody(node) {
        switch (node.kind) {
            case 225:
                return visitFunctionDeclaration(node);
            case 184:
                return visitFunctionExpression(node);
            case 151:
            case 152:
                return visitAccessorDeclaration(node);
            case 205:
                return visitVariableStatement(node);
            case 211:
                return visitForStatement(node);
            case 212:
                return visitForInStatement(node);
            case 215:
                return visitBreakStatement(node);
            case 214:
                return visitContinueStatement(node);
            case 216:
                return visitReturnStatement(node);
            default:
                if (node.transformFlags & 16777216) {
                    return visitJavaScriptContainingYield(node);
                }
                else if (node.transformFlags & (512 | 33554432)) {
                    return ts.visitEachChild(node, visitor, context);
                }
                else {
                    return node;
                }
        }
    }
    function visitJavaScriptContainingYield(node) {
        switch (node.kind) {
            case 192:
                return visitBinaryExpression(node);
            case 193:
                return visitConditionalExpression(node);
            case 195:
                return visitYieldExpression(node);
            case 175:
                return visitArrayLiteralExpression(node);
            case 176:
                return visitObjectLiteralExpression(node);
            case 178:
                return visitElementAccessExpression(node);
            case 179:
                return visitCallExpression(node);
            case 180:
                return visitNewExpression(node);
            default:
                return ts.visitEachChild(node, visitor, context);
        }
    }
    function visitGenerator(node) {
        switch (node.kind) {
            case 225:
                return visitFunctionDeclaration(node);
            case 184:
                return visitFunctionExpression(node);
            default:
                ts.Debug.failBadSyntaxKind(node);
                return ts.visitEachChild(node, visitor, context);
        }
    }
    function visitFunctionDeclaration(node) {
        if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
            node = ts.setOriginalNode(ts.createFunctionDeclaration(undefined, node.modifiers, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformGeneratorFunctionBody(node.body), node), node);
        }
        else {
            var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
            var savedInStatementContainingYield = inStatementContainingYield;
            inGeneratorFunctionBody = false;
            inStatementContainingYield = false;
            node = ts.visitEachChild(node, visitor, context);
            inGeneratorFunctionBody = savedInGeneratorFunctionBody;
            inStatementContainingYield = savedInStatementContainingYield;
        }
        if (inGeneratorFunctionBody) {
            hoistFunctionDeclaration(node);
            return undefined;
        }
        else {
            return node;
        }
    }
    function visitFunctionExpression(node) {
        if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
            node = ts.setOriginalNode(ts.createFunctionExpression(undefined, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformGeneratorFunctionBody(node.body), node), node);
        }
        else {
            var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
            var savedInStatementContainingYield = inStatementContainingYield;
            inGeneratorFunctionBody = false;
            inStatementContainingYield = false;
            node = ts.visitEachChild(node, visitor, context);
            inGeneratorFunctionBody = savedInGeneratorFunctionBody;
            inStatementContainingYield = savedInStatementContainingYield;
        }
        return node;
    }
    function visitAccessorDeclaration(node) {
        var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
        var savedInStatementContainingYield = inStatementContainingYield;
        inGeneratorFunctionBody = false;
        inStatementContainingYield = false;
        node = ts.visitEachChild(node, visitor, context);
        inGeneratorFunctionBody = savedInGeneratorFunctionBody;
        inStatementContainingYield = savedInStatementContainingYield;
        return node;
    }
    function transformGeneratorFunctionBody(body) {
        var statements = [];
        var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
        var savedInStatementContainingYield = inStatementContainingYield;
        var savedBlocks = blocks;
        var savedBlockOffsets = blockOffsets;
        var savedBlockActions = blockActions;
        var savedBlockStack = blockStack;
        var savedLabelOffsets = labelOffsets;
        var savedLabelExpressions = labelExpressions;
        var savedNextLabelId = nextLabelId;
        var savedOperations = operations;
        var savedOperationArguments = operationArguments;
        var savedOperationLocations = operationLocations;
        var savedState = state;
        inGeneratorFunctionBody = true;
        inStatementContainingYield = false;
        blocks = undefined;
        blockOffsets = undefined;
        blockActions = undefined;
        blockStack = undefined;
        labelOffsets = undefined;
        labelExpressions = undefined;
        nextLabelId = 1;
        operations = undefined;
        operationArguments = undefined;
        operationLocations = undefined;
        state = ts.createTempVariable(undefined);
        resumeLexicalEnvironment();
        var statementOffset = ts.addPrologueDirectives(statements, body.statements, false, visitor);
        transformAndEmitStatements(body.statements, statementOffset);
        var buildResult = build();
        ts.addRange(statements, endLexicalEnvironment());
        statements.push(ts.createReturn(buildResult));
        inGeneratorFunctionBody = savedInGeneratorFunctionBody;
        inStatementContainingYield = savedInStatementContainingYield;
        blocks = savedBlocks;
        blockOffsets = savedBlockOffsets;
        blockActions = savedBlockActions;
        blockStack = savedBlockStack;
        labelOffsets = savedLabelOffsets;
        labelExpressions = savedLabelExpressions;
        nextLabelId = savedNextLabelId;
        operations = savedOperations;
        operationArguments = savedOperationArguments;
        operationLocations = savedOperationLocations;
        state = savedState;
        return ts.createBlock(statements, body, body.multiLine);
    }
    function visitVariableStatement(node) {
        if (node.transformFlags & 16777216) {
            transformAndEmitVariableDeclarationList(node.declarationList);
            return undefined;
        }
        else {
            if (ts.getEmitFlags(node) & 524288) {
                return node;
            }
            for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
                var variable = _a[_i];
                hoistVariableDeclaration(variable.name);
            }
            var variables = ts.getInitializedVariables(node.declarationList);
            if (variables.length === 0) {
                return undefined;
            }
            return ts.createStatement(ts.inlineExpressions(ts.map(variables, transformInitializedVariable)));
        }
    }
    function visitBinaryExpression(node) {
        switch (ts.getExpressionAssociativity(node)) {
            case 0:
                return visitLeftAssociativeBinaryExpression(node);
            case 1:
                return visitRightAssociativeBinaryExpression(node);
            default:
                ts.Debug.fail("Unknown associativity.");
        }
    }
    function isCompoundAssignment(kind) {
        return kind >= 58
            && kind <= 69;
    }
    function getOperatorForCompoundAssignment(kind) {
        switch (kind) {
            case 58: return 36;
            case 59: return 37;
            case 60: return 38;
            case 61: return 39;
            case 62: return 40;
            case 63: return 41;
            case 64: return 44;
            case 65: return 45;
            case 66: return 46;
            case 67: return 47;
            case 68: return 48;
            case 69: return 49;
        }
    }
    function visitRightAssociativeBinaryExpression(node) {
        var left = node.left, right = node.right;
        if (containsYield(right)) {
            var target = void 0;
            switch (left.kind) {
                case 177:
                    target = ts.updatePropertyAccess(left, cacheExpression(ts.visitNode(left.expression, visitor, ts.isLeftHandSideExpression)), left.name);
                    break;
                case 178:
                    target = ts.updateElementAccess(left, cacheExpression(ts.visitNode(left.expression, visitor, ts.isLeftHandSideExpression)), cacheExpression(ts.visitNode(left.argumentExpression, visitor, ts.isExpression)));
                    break;
                default:
                    target = ts.visitNode(left, visitor, ts.isExpression);
                    break;
            }
            var operator = node.operatorToken.kind;
            if (isCompoundAssignment(operator)) {
                return ts.createBinary(target, 57, ts.createBinary(cacheExpression(target), getOperatorForCompoundAssignment(operator), ts.visitNode(right, visitor, ts.isExpression), node), node);
            }
            else {
                return ts.updateBinary(node, target, ts.visitNode(right, visitor, ts.isExpression));
            }
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitLeftAssociativeBinaryExpression(node) {
        if (containsYield(node.right)) {
            if (ts.isLogicalOperator(node.operatorToken.kind)) {
                return visitLogicalBinaryExpression(node);
            }
            else if (node.operatorToken.kind === 25) {
                return visitCommaExpression(node);
            }
            var clone_4 = ts.getMutableClone(node);
            clone_4.left = cacheExpression(ts.visitNode(node.left, visitor, ts.isExpression));
            clone_4.right = ts.visitNode(node.right, visitor, ts.isExpression);
            return clone_4;
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitLogicalBinaryExpression(node) {
        var resultLabel = defineLabel();
        var resultLocal = declareLocal();
        emitAssignment(resultLocal, ts.visitNode(node.left, visitor, ts.isExpression), node.left);
        if (node.operatorToken.kind === 52) {
            emitBreakWhenFalse(resultLabel, resultLocal, node.left);
        }
        else {
            emitBreakWhenTrue(resultLabel, resultLocal, node.left);
        }
        emitAssignment(resultLocal, ts.visitNode(node.right, visitor, ts.isExpression), node.right);
        markLabel(resultLabel);
        return resultLocal;
    }
    function visitCommaExpression(node) {
        var pendingExpressions = [];
        visit(node.left);
        visit(node.right);
        return ts.inlineExpressions(pendingExpressions);
        function visit(node) {
            if (ts.isBinaryExpression(node) && node.operatorToken.kind === 25) {
                visit(node.left);
                visit(node.right);
            }
            else {
                if (containsYield(node) && pendingExpressions.length > 0) {
                    emitWorker(1, [ts.createStatement(ts.inlineExpressions(pendingExpressions))]);
                    pendingExpressions = [];
                }
                pendingExpressions.push(ts.visitNode(node, visitor, ts.isExpression));
            }
        }
    }
    function visitConditionalExpression(node) {
        if (containsYield(node.whenTrue) || containsYield(node.whenFalse)) {
            var whenFalseLabel = defineLabel();
            var resultLabel = defineLabel();
            var resultLocal = declareLocal();
            emitBreakWhenFalse(whenFalseLabel, ts.visitNode(node.condition, visitor, ts.isExpression), node.condition);
            emitAssignment(resultLocal, ts.visitNode(node.whenTrue, visitor, ts.isExpression), node.whenTrue);
            emitBreak(resultLabel);
            markLabel(whenFalseLabel);
            emitAssignment(resultLocal, ts.visitNode(node.whenFalse, visitor, ts.isExpression), node.whenFalse);
            markLabel(resultLabel);
            return resultLocal;
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitYieldExpression(node) {
        var resumeLabel = defineLabel();
        var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
        if (node.asteriskToken) {
            emitYieldStar(expression, node);
        }
        else {
            emitYield(expression, node);
        }
        markLabel(resumeLabel);
        return createGeneratorResume(node);
    }
    function visitArrayLiteralExpression(node) {
        return visitElements(node.elements, undefined, undefined, node.multiLine);
    }
    function visitElements(elements, leadingElement, location, multiLine) {
        var numInitialElements = countInitialNodesWithoutYield(elements);
        var temp = declareLocal();
        var hasAssignedTemp = false;
        if (numInitialElements > 0) {
            var initialElements = ts.visitNodes(elements, visitor, ts.isExpression, 0, numInitialElements);
            emitAssignment(temp, ts.createArrayLiteral(leadingElement
                ? [leadingElement].concat(initialElements) : initialElements));
            leadingElement = undefined;
            hasAssignedTemp = true;
        }
        var expressions = ts.reduceLeft(elements, reduceElement, [], numInitialElements);
        return hasAssignedTemp
            ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, undefined, multiLine)])
            : ts.createArrayLiteral(leadingElement ? [leadingElement].concat(expressions) : expressions, location, multiLine);
        function reduceElement(expressions, element) {
            if (containsYield(element) && expressions.length > 0) {
                emitAssignment(temp, hasAssignedTemp
                    ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, undefined, multiLine)])
                    : ts.createArrayLiteral(leadingElement ? [leadingElement].concat(expressions) : expressions, undefined, multiLine));
                hasAssignedTemp = true;
                leadingElement = undefined;
                expressions = [];
            }
            expressions.push(ts.visitNode(element, visitor, ts.isExpression));
            return expressions;
        }
    }
    function visitObjectLiteralExpression(node) {
        var properties = node.properties;
        var multiLine = node.multiLine;
        var numInitialProperties = countInitialNodesWithoutYield(properties);
        var temp = declareLocal();
        emitAssignment(temp, ts.createObjectLiteral(ts.visitNodes(properties, visitor, ts.isObjectLiteralElementLike, 0, numInitialProperties), undefined, multiLine));
        var expressions = ts.reduceLeft(properties, reduceProperty, [], numInitialProperties);
        expressions.push(multiLine ? ts.startOnNewLine(ts.getMutableClone(temp)) : temp);
        return ts.inlineExpressions(expressions);
        function reduceProperty(expressions, property) {
            if (containsYield(property) && expressions.length > 0) {
                emitStatement(ts.createStatement(ts.inlineExpressions(expressions)));
                expressions = [];
            }
            var expression = ts.createExpressionForObjectLiteralElementLike(node, property, temp);
            var visited = ts.visitNode(expression, visitor, ts.isExpression);
            if (visited) {
                if (multiLine) {
                    visited.startsOnNewLine = true;
                }
                expressions.push(visited);
            }
            return expressions;
        }
    }
    function visitElementAccessExpression(node) {
        if (containsYield(node.argumentExpression)) {
            var clone_5 = ts.getMutableClone(node);
            clone_5.expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression));
            clone_5.argumentExpression = ts.visitNode(node.argumentExpression, visitor, ts.isExpression);
            return clone_5;
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitCallExpression(node) {
        if (ts.forEach(node.arguments, containsYield)) {
            var _a = ts.createCallBinding(node.expression, hoistVariableDeclaration, languageVersion, true), target = _a.target, thisArg = _a.thisArg;
            return ts.setOriginalNode(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isLeftHandSideExpression)), thisArg, visitElements(node.arguments), node), node);
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function visitNewExpression(node) {
        if (ts.forEach(node.arguments, containsYield)) {
            var _a = ts.createCallBinding(ts.createPropertyAccess(node.expression, "bind"), hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
            return ts.setOriginalNode(ts.createNew(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isExpression)), thisArg, visitElements(node.arguments, ts.createVoidZero())), undefined, [], node), node);
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function transformAndEmitStatements(statements, start) {
        if (start === void 0) { start = 0; }
        var numStatements = statements.length;
        for (var i = start; i < numStatements; i++) {
            transformAndEmitStatement(statements[i]);
        }
    }
    function transformAndEmitEmbeddedStatement(node) {
        if (ts.isBlock(node)) {
            transformAndEmitStatements(node.statements);
        }
        else {
            transformAndEmitStatement(node);
        }
    }
    function transformAndEmitStatement(node) {
        var savedInStatementContainingYield = inStatementContainingYield;
        if (!inStatementContainingYield) {
            inStatementContainingYield = containsYield(node);
        }
        transformAndEmitStatementWorker(node);
        inStatementContainingYield = savedInStatementContainingYield;
    }
    function transformAndEmitStatementWorker(node) {
        switch (node.kind) {
            case 204:
                return transformAndEmitBlock(node);
            case 207:
                return transformAndEmitExpressionStatement(node);
            case 208:
                return transformAndEmitIfStatement(node);
            case 209:
                return transformAndEmitDoStatement(node);
            case 210:
                return transformAndEmitWhileStatement(node);
            case 211:
                return transformAndEmitForStatement(node);
            case 212:
                return transformAndEmitForInStatement(node);
            case 214:
                return transformAndEmitContinueStatement(node);
            case 215:
                return transformAndEmitBreakStatement(node);
            case 216:
                return transformAndEmitReturnStatement(node);
            case 217:
                return transformAndEmitWithStatement(node);
            case 218:
                return transformAndEmitSwitchStatement(node);
            case 219:
                return transformAndEmitLabeledStatement(node);
            case 220:
                return transformAndEmitThrowStatement(node);
            case 221:
                return transformAndEmitTryStatement(node);
            default:
                return emitStatement(ts.visitNode(node, visitor, ts.isStatement, true));
        }
    }
    function transformAndEmitBlock(node) {
        if (containsYield(node)) {
            transformAndEmitStatements(node.statements);
        }
        else {
            emitStatement(ts.visitNode(node, visitor, ts.isStatement));
        }
    }
    function transformAndEmitExpressionStatement(node) {
        emitStatement(ts.visitNode(node, visitor, ts.isStatement));
    }
    function transformAndEmitVariableDeclarationList(node) {
        for (var _i = 0, _a = node.declarations; _i < _a.length; _i++) {
            var variable = _a[_i];
            var name_37 = ts.getSynthesizedClone(variable.name);
            ts.setCommentRange(name_37, variable.name);
            hoistVariableDeclaration(name_37);
        }
        var variables = ts.getInitializedVariables(node);
        var numVariables = variables.length;
        var variablesWritten = 0;
        var pendingExpressions = [];
        while (variablesWritten < numVariables) {
            for (var i = variablesWritten; i < numVariables; i++) {
                var variable = variables[i];
                if (containsYield(variable.initializer) && pendingExpressions.length > 0) {
                    break;
                }
                pendingExpressions.push(transformInitializedVariable(variable));
            }
            if (pendingExpressions.length) {
                emitStatement(ts.createStatement(ts.inlineExpressions(pendingExpressions)));
                variablesWritten += pendingExpressions.length;
                pendingExpressions = [];
            }
        }
        return undefined;
    }
    function transformInitializedVariable(node) {
        return ts.createAssignment(ts.getSynthesizedClone(node.name), ts.visitNode(node.initializer, visitor, ts.isExpression));
    }
    function transformAndEmitIfStatement(node) {
        if (containsYield(node)) {
            if (containsYield(node.thenStatement) || containsYield(node.elseStatement)) {
                var endLabel = defineLabel();
                var elseLabel = node.elseStatement ? defineLabel() : undefined;
                emitBreakWhenFalse(node.elseStatement ? elseLabel : endLabel, ts.visitNode(node.expression, visitor, ts.isExpression), node.expression);
                transformAndEmitEmbeddedStatement(node.thenStatement);
                if (node.elseStatement) {
                    emitBreak(endLabel);
                    markLabel(elseLabel);
                    transformAndEmitEmbeddedStatement(node.elseStatement);
                }
                markLabel(endLabel);
            }
            else {
                emitStatement(ts.visitNode(node, visitor, ts.isStatement));
            }
        }
        else {
            emitStatement(ts.visitNode(node, visitor, ts.isStatement));
        }
    }
    function transformAndEmitDoStatement(node) {
        if (containsYield(node)) {
            var conditionLabel = defineLabel();
            var loopLabel = defineLabel();
            beginLoopBlock(conditionLabel);
            markLabel(loopLabel);
            transformAndEmitEmbeddedStatement(node.statement);
            markLabel(conditionLabel);
            emitBreakWhenTrue(loopLabel, ts.visitNode(node.expression, visitor, ts.isExpression));
            endLoopBlock();
        }
        else {
            emitStatement(ts.visitNode(node, visitor, ts.isStatement));
        }
    }
    function visitDoStatement(node) {
        if (inStatementContainingYield) {
            beginScriptLoopBlock();
            node = ts.visitEachChild(node, visitor, context);
            endLoopBlock();
            return node;
        }
        else {
            return ts.visitEachChild(node, visitor, context);
        }
    }
    function transformAndEmitWhileStatement(node) {
        if (containsYield(node)) {
            var loopLabel = defineLabel();
            var endLabel = beginLoopBlock(loopLabel);
            markLabel(loopLabel);
            emitBreakWhenFalse(endLabel, ts.visitNode(node.expression, visitor, ts.isExpression));
            transformAndEmitEmbeddedStatement(node.statement);
            emitBreak(loopLabel);
            endLoopBlock();
        }
        else {
            emitStatement(ts.visitNode(node, visitor, ts.isStatement));
        }
    }
    function visitWhileStatement(node) {
        if (inStatementContainingYield) {
            beginScriptLoopBlock();
            node = ts.visitEachChild(node, visitor, context);
            endLoopBlock();
            return node;
        }
        else {
            return ts.visitEachChild(node, visitor, context);
        }
    }
    function transformAndEmitForStatement(node) {
        if (containsYield(node)) {
            var conditionLabel = defineLabel();
            var incrementLabel = defineLabel();
            var endLabel = beginLoopBlock(incrementLabel);
            if (node.initializer) {
                var initializer = node.initializer;
                if (ts.isVariableDeclarationList(initializer)) {
                    transformAndEmitVariableDeclarationList(initializer);
                }
                else {
                    emitStatement(ts.createStatement(ts.visitNode(initializer, visitor, ts.isExpression), initializer));
                }
            }
            markLabel(conditionLabel);
            if (node.condition) {
                emitBreakWhenFalse(endLabel, ts.visitNode(node.condition, visitor, ts.isExpression));
            }
            transformAndEmitEmbeddedStatement(node.statement);
            markLabel(incrementLabel);
            if (node.incrementor) {
                emitStatement(ts.createStatement(ts.visitNode(node.incrementor, visitor, ts.isExpression), node.incrementor));
            }
            emitBreak(conditionLabel);
            endLoopBlock();
        }
        else {
            emitStatement(ts.visitNode(node, visitor, ts.isStatement));
        }
    }
    function visitForStatement(node) {
        if (inStatementContainingYield) {
            beginScriptLoopBlock();
        }
        var initializer = node.initializer;
        if (ts.isVariableDeclarationList(initializer)) {
            for (var _i = 0, _a = initializer.declarations; _i < _a.length; _i++) {
                var variable = _a[_i];
                hoistVariableDeclaration(variable.name);
            }
            var variables = ts.getInitializedVariables(initializer);
            node = ts.updateFor(node, variables.length > 0
                ? ts.inlineExpressions(ts.map(variables, transformInitializedVariable))
                : undefined, ts.visitNode(node.condition, visitor, ts.isExpression, true), ts.visitNode(node.incrementor, visitor, ts.isExpression, true), ts.visitNode(node.statement, visitor, ts.isStatement, false, ts.liftToBlock));
        }
        else {
            node = ts.visitEachChild(node, visitor, context);
        }
        if (inStatementContainingYield) {
            endLoopBlock();
        }
        return node;
    }
    function transformAndEmitForInStatement(node) {
        if (containsYield(node)) {
            var keysArray = declareLocal();
            var key = declareLocal();
            var keysIndex = ts.createLoopVariable();
            var initializer = node.initializer;
            hoistVariableDeclaration(keysIndex);
            emitAssignment(keysArray, ts.createArrayLiteral());
            emitStatement(ts.createForIn(key, ts.visitNode(node.expression, visitor, ts.isExpression), ts.createStatement(ts.createCall(ts.createPropertyAccess(keysArray, "push"), undefined, [key]))));
            emitAssignment(keysIndex, ts.createLiteral(0));
            var conditionLabel = defineLabel();
            var incrementLabel = defineLabel();
            var endLabel = beginLoopBlock(incrementLabel);
            markLabel(conditionLabel);
            emitBreakWhenFalse(endLabel, ts.createLessThan(keysIndex, ts.createPropertyAccess(keysArray, "length")));
            var variable = void 0;
            if (ts.isVariableDeclarationList(initializer)) {
                for (var _i = 0, _a = initializer.declarations; _i < _a.length; _i++) {
                    var variable_1 = _a[_i];
                    hoistVariableDeclaration(variable_1.name);
                }
                variable = ts.getSynthesizedClone(initializer.declarations[0].name);
            }
            else {
                variable = ts.visitNode(initializer, visitor, ts.isExpression);
                ts.Debug.assert(ts.isLeftHandSideExpression(variable));
            }
            emitAssignment(variable, ts.createElementAccess(keysArray, keysIndex));
            transformAndEmitEmbeddedStatement(node.statement);
            markLabel(incrementLabel);
            emitStatement(ts.createStatement(ts.createPostfixIncrement(keysIndex)));
            emitBreak(conditionLabel);
            endLoopBlock();
        }
        else {
            emitStatement(ts.visitNode(node, visitor, ts.isStatement));
        }
    }
    function visitForInStatement(node) {
        if (inStatementContainingYield) {
            beginScriptLoopBlock();
        }
        var initializer = node.initializer;
        if (ts.isVariableDeclarationList(initializer)) {
            for (var _i = 0, _a = initializer.declarations; _i < _a.length; _i++) {
                var variable = _a[_i];
                hoistVariableDeclaration(variable.name);
            }
            node = ts.updateForIn(node, initializer.declarations[0].name, ts.visitNode(node.expression, visitor, ts.isExpression), ts.visitNode(node.statement, visitor, ts.isStatement, false, ts.liftToBlock));
        }
        else {
            node = ts.visitEachChild(node, visitor, context);
        }
        if (inStatementContainingYield) {
            endLoopBlock();
        }
        return node;
    }
    function transformAndEmitContinueStatement(node) {
        var label = findContinueTarget(node.label ? node.label.text : undefined);
        ts.Debug.assert(label > 0, "Expected continue statment to point to a valid Label.");
        emitBreak(label, node);
    }
    function visitContinueStatement(node) {
        if (inStatementContainingYield) {
            var label = findContinueTarget(node.label && node.label.text);
            if (label > 0) {
                return createInlineBreak(label, node);
            }
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function transformAndEmitBreakStatement(node) {
        var label = findBreakTarget(node.label ? node.label.text : undefined);
        ts.Debug.assert(label > 0, "Expected break statment to point to a valid Label.");
        emitBreak(label, node);
    }
    function visitBreakStatement(node) {
        if (inStatementContainingYield) {
            var label = findBreakTarget(node.label && node.label.text);
            if (label > 0) {
                return createInlineBreak(label, node);
            }
        }
        return ts.visitEachChild(node, visitor, context);
    }
    function transformAndEmitReturnStatement(node) {
        emitReturn(ts.visitNode(node.expression, visitor, ts.isExpression, true), node);
    }
    function visitReturnStatement(node) {
        return createInlineReturn(ts.visitNode(node.expression, visitor, ts.isExpression, true), node);
    }
    function transformAndEmitWithStatement(node) {
        if (containsYield(node)) {
            beginWithBlock(cacheExpression(ts.visitNode(node.expression, visitor, ts.isExpression)));
            transformAndEmitEmbeddedStatement(node.statement);
            endWithBlock();
        }
        else {
            emitStatement(ts.visitNode(node, visitor, ts.isStatement));
        }
    }
    function transformAndEmitSwitchStatement(node) {
        if (containsYield(node.caseBlock)) {
            var caseBlock = node.caseBlock;
            var numClauses = caseBlock.clauses.length;
            var endLabel = beginSwitchBlock();
            var expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isExpression));
            var clauseLabels = [];
            var defaultClauseIndex = -1;
            for (var i = 0; i < numClauses; i++) {
                var clause = caseBlock.clauses[i];
                clauseLabels.push(defineLabel());
                if (clause.kind === 254 && defaultClauseIndex === -1) {
                    defaultClauseIndex = i;
                }
            }
            var clausesWritten = 0;
            var pendingClauses = [];
            while (clausesWritten < numClauses) {
                var defaultClausesSkipped = 0;
                for (var i = clausesWritten; i < numClauses; i++) {
                    var clause = caseBlock.clauses[i];
                    if (clause.kind === 253) {
                        var caseClause = clause;
                        if (containsYield(caseClause.expression) && pendingClauses.length > 0) {
                            break;
                        }
                        pendingClauses.push(ts.createCaseClause(ts.visitNode(caseClause.expression, visitor, ts.isExpression), [
                            createInlineBreak(clauseLabels[i], caseClause.expression)
                        ]));
                    }
                    else {
                        defaultClausesSkipped++;
                    }
                }
                if (pendingClauses.length) {
                    emitStatement(ts.createSwitch(expression, ts.createCaseBlock(pendingClauses)));
                    clausesWritten += pendingClauses.length;
                    pendingClauses = [];
                }
                if (defaultClausesSkipped > 0) {
                    clausesWritten += defaultClausesSkipped;
                    defaultClausesSkipped = 0;
                }
            }
            if (defaultClauseIndex >= 0) {
                emitBreak(clauseLabels[defaultClauseIndex]);
            }
            else {
                emitBreak(endLabel);
            }
            for (var i = 0; i < numClauses; i++) {
                markLabel(clauseLabels[i]);
                transformAndEmitStatements(caseBlock.clauses[i].statements);
            }
            endSwitchBlock();
        }
        else {
            emitStatement(ts.visitNode(node, visitor, ts.isStatement));
        }
    }
    function visitSwitchStatement(node) {
        if (inStatementContainingYield) {
            beginScriptSwitchBlock();
        }
        node = ts.visitEachChild(node, visitor, context);
        if (inStatementContainingYield) {
            endSwitchBlock();
        }
        return node;
    }
    function transformAndEmitLabeledStatement(node) {
        if (containsYield(node)) {
            beginLabeledBlock(node.label.text);
            transformAndEmitEmbeddedStatement(node.statement);
            endLabeledBlock();
        }
        else {
            emitStatement(ts.visitNode(node, visitor, ts.isStatement));
        }
    }
    function visitLabeledStatement(node) {
        if (inStatementContainingYield) {
            beginScriptLabeledBlock(node.label.text);
        }
        node = ts.visitEachChild(node, visitor, context);
        if (inStatementContainingYield) {
            endLabeledBlock();
        }
        return node;
    }
    function transformAndEmitThrowStatement(node) {
        emitThrow(ts.visitNode(node.expression, visitor, ts.isExpression), node);
    }
    function transformAndEmitTryStatement(node) {
        if (containsYield(node)) {
            beginExceptionBlock();
            transformAndEmitEmbeddedStatement(node.tryBlock);
            if (node.catchClause) {
                beginCatchBlock(node.catchClause.variableDeclaration);
                transformAndEmitEmbeddedStatement(node.catchClause.block);
            }
            if (node.finallyBlock) {
                beginFinallyBlock();
                transformAndEmitEmbeddedStatement(node.finallyBlock);
            }
            endExceptionBlock();
        }
        else {
            emitStatement(ts.visitEachChild(node, visitor, context));
        }
    }
    function containsYield(node) {
        return node && (node.transformFlags & 16777216) !== 0;
    }
    function countInitialNodesWithoutYield(nodes) {
        var numNodes = nodes.length;
        for (var i = 0; i < numNodes; i++) {
            if (containsYield(nodes[i])) {
                return i;
            }
        }
        return -1;
    }
    function onSubstituteNode(emitContext, node) {
        node = previousOnSubstituteNode(emitContext, node);
        if (emitContext === 1) {
            return substituteExpression(node);
        }
        return node;
    }
    function substituteExpression(node) {
        if (ts.isIdentifier(node)) {
            return substituteExpressionIdentifier(node);
        }
        return node;
    }
    function substituteExpressionIdentifier(node) {
        if (renamedCatchVariables && ts.hasProperty(renamedCatchVariables, node.text)) {
            var original = ts.getOriginalNode(node);
            if (ts.isIdentifier(original) && original.parent) {
                var declaration = resolver.getReferencedValueDeclaration(original);
                if (declaration) {
                    var name_38 = ts.getProperty(renamedCatchVariableDeclarations, String(ts.getOriginalNodeId(declaration)));
                    if (name_38) {
                        var clone_6 = ts.getMutableClone(name_38);
                        ts.setSourceMapRange(clone_6, node);
                        ts.setCommentRange(clone_6, node);
                        return clone_6;
                    }
                }
            }
        }
        return node;
    }
    function cacheExpression(node) {
        var temp;
        if (ts.isGeneratedIdentifier(node)) {
            return node;
        }
        temp = ts.createTempVariable(hoistVariableDeclaration);
        emitAssignment(temp, node, node);
        return temp;
    }
    function declareLocal(name) {
        var temp = name
            ? ts.createUniqueName(name)
            : ts.createTempVariable(undefined);
        hoistVariableDeclaration(temp);
        return temp;
    }
    function defineLabel() {
        if (!labelOffsets) {
            labelOffsets = [];
        }
        var label = nextLabelId;
        nextLabelId++;
        labelOffsets[label] = -1;
        return label;
    }
    function markLabel(label) {
        ts.Debug.assert(labelOffsets !== undefined, "No labels were defined.");
        labelOffsets[label] = operations ? operations.length : 0;
    }
    function beginBlock(block) {
        if (!blocks) {
            blocks = [];
            blockActions = [];
            blockOffsets = [];
            blockStack = [];
        }
        var index = blockActions.length;
        blockActions[index] = 0;
        blockOffsets[index] = operations ? operations.length : 0;
        blocks[index] = block;
        blockStack.push(block);
        return index;
    }
    function endBlock() {
        var block = peekBlock();
        ts.Debug.assert(block !== undefined, "beginBlock was never called.");
        var index = blockActions.length;
        blockActions[index] = 1;
        blockOffsets[index] = operations ? operations.length : 0;
        blocks[index] = block;
        blockStack.pop();
        return block;
    }
    function peekBlock() {
        return ts.lastOrUndefined(blockStack);
    }
    function peekBlockKind() {
        var block = peekBlock();
        return block && block.kind;
    }
    function beginWithBlock(expression) {
        var startLabel = defineLabel();
        var endLabel = defineLabel();
        markLabel(startLabel);
        beginBlock({
            kind: 1,
            expression: expression,
            startLabel: startLabel,
            endLabel: endLabel
        });
    }
    function endWithBlock() {
        ts.Debug.assert(peekBlockKind() === 1);
        var block = endBlock();
        markLabel(block.endLabel);
    }
    function isWithBlock(block) {
        return block.kind === 1;
    }
    function beginExceptionBlock() {
        var startLabel = defineLabel();
        var endLabel = defineLabel();
        markLabel(startLabel);
        beginBlock({
            kind: 0,
            state: 0,
            startLabel: startLabel,
            endLabel: endLabel
        });
        emitNop();
        return endLabel;
    }
    function beginCatchBlock(variable) {
        ts.Debug.assert(peekBlockKind() === 0);
        var text = variable.name.text;
        var name = declareLocal(text);
        if (!renamedCatchVariables) {
            renamedCatchVariables = ts.createMap();
            renamedCatchVariableDeclarations = ts.createMap();
            context.enableSubstitution(70);
        }
        renamedCatchVariables[text] = true;
        renamedCatchVariableDeclarations[ts.getOriginalNodeId(variable)] = name;
        var exception = peekBlock();
        ts.Debug.assert(exception.state < 1);
        var endLabel = exception.endLabel;
        emitBreak(endLabel);
        var catchLabel = defineLabel();
        markLabel(catchLabel);
        exception.state = 1;
        exception.catchVariable = name;
        exception.catchLabel = catchLabel;
        emitAssignment(name, ts.createCall(ts.createPropertyAccess(state, "sent"), undefined, []));
        emitNop();
    }
    function beginFinallyBlock() {
        ts.Debug.assert(peekBlockKind() === 0);
        var exception = peekBlock();
        ts.Debug.assert(exception.state < 2);
        var endLabel = exception.endLabel;
        emitBreak(endLabel);
        var finallyLabel = defineLabel();
        markLabel(finallyLabel);
        exception.state = 2;
        exception.finallyLabel = finallyLabel;
    }
    function endExceptionBlock() {
        ts.Debug.assert(peekBlockKind() === 0);
        var exception = endBlock();
        var state = exception.state;
        if (state < 2) {
            emitBreak(exception.endLabel);
        }
        else {
            emitEndfinally();
        }
        markLabel(exception.endLabel);
        emitNop();
        exception.state = 3;
    }
    function isExceptionBlock(block) {
        return block.kind === 0;
    }
    function beginScriptLoopBlock() {
        beginBlock({
            kind: 3,
            isScript: true,
            breakLabel: -1,
            continueLabel: -1
        });
    }
    function beginLoopBlock(continueLabel) {
        var breakLabel = defineLabel();
        beginBlock({
            kind: 3,
            isScript: false,
            breakLabel: breakLabel,
            continueLabel: continueLabel
        });
        return breakLabel;
    }
    function endLoopBlock() {
        ts.Debug.assert(peekBlockKind() === 3);
        var block = endBlock();
        var breakLabel = block.breakLabel;
        if (!block.isScript) {
            markLabel(breakLabel);
        }
    }
    function beginScriptSwitchBlock() {
        beginBlock({
            kind: 2,
            isScript: true,
            breakLabel: -1
        });
    }
    function beginSwitchBlock() {
        var breakLabel = defineLabel();
        beginBlock({
            kind: 2,
            isScript: false,
            breakLabel: breakLabel
        });
        return breakLabel;
    }
    function endSwitchBlock() {
        ts.Debug.assert(peekBlockKind() === 2);
        var block = endBlock();
        var breakLabel = block.breakLabel;
        if (!block.isScript) {
            markLabel(breakLabel);
        }
    }
    function beginScriptLabeledBlock(labelText) {
        beginBlock({
            kind: 4,
            isScript: true,
            labelText: labelText,
            breakLabel: -1
        });
    }
    function beginLabeledBlock(labelText) {
        var breakLabel = defineLabel();
        beginBlock({
            kind: 4,
            isScript: false,
            labelText: labelText,
            breakLabel: breakLabel
        });
    }
    function endLabeledBlock() {
        ts.Debug.assert(peekBlockKind() === 4);
        var block = endBlock();
        if (!block.isScript) {
            markLabel(block.breakLabel);
        }
    }
    function supportsUnlabeledBreak(block) {
        return block.kind === 2
            || block.kind === 3;
    }
    function supportsLabeledBreakOrContinue(block) {
        return block.kind === 4;
    }
    function supportsUnlabeledContinue(block) {
        return block.kind === 3;
    }
    function hasImmediateContainingLabeledBlock(labelText, start) {
        for (var j = start; j >= 0; j--) {
            var containingBlock = blockStack[j];
            if (supportsLabeledBreakOrContinue(containingBlock)) {
                if (containingBlock.labelText === labelText) {
                    return true;
                }
            }
            else {
                break;
            }
        }
        return false;
    }
    function findBreakTarget(labelText) {
        ts.Debug.assert(blocks !== undefined);
        if (labelText) {
            for (var i = blockStack.length - 1; i >= 0; i--) {
                var block = blockStack[i];
                if (supportsLabeledBreakOrContinue(block) && block.labelText === labelText) {
                    return block.breakLabel;
                }
                else if (supportsUnlabeledBreak(block) && hasImmediateContainingLabeledBlock(labelText, i - 1)) {
                    return block.breakLabel;
                }
            }
        }
        else {
            for (var i = blockStack.length - 1; i >= 0; i--) {
                var block = blockStack[i];
                if (supportsUnlabeledBreak(block)) {
                    return block.breakLabel;
                }
            }
        }
        return 0;
    }
    function findContinueTarget(labelText) {
        ts.Debug.assert(blocks !== undefined);
        if (labelText) {
            for (var i = blockStack.length - 1; i >= 0; i--) {
                var block = blockStack[i];
                if (supportsUnlabeledContinue(block) && hasImmediateContainingLabeledBlock(labelText, i - 1)) {
                    return block.continueLabel;
                }
            }
        }
        else {
            for (var i = blockStack.length - 1; i >= 0; i--) {
                var block = blockStack[i];
                if (supportsUnlabeledContinue(block)) {
                    return block.continueLabel;
                }
            }
        }
        return 0;
    }
    function createLabel(label) {
        if (label > 0) {
            if (labelExpressions === undefined) {
                labelExpressions = [];
            }
            var expression = ts.createLiteral(-1);
            if (labelExpressions[label] === undefined) {
                labelExpressions[label] = [expression];
            }
            else {
                labelExpressions[label].push(expression);
            }
            return expression;
        }
        return ts.createOmittedExpression();
    }
    function createInstruction(instruction) {
        var literal = ts.createLiteral(instruction);
        literal.trailingComment = instructionNames[instruction];
        return literal;
    }
    function createInlineBreak(label, location) {
        ts.Debug.assert(label > 0, "Invalid label: " + label);
        return ts.createReturn(ts.createArrayLiteral([
            createInstruction(3),
            createLabel(label)
        ]), location);
    }
    function createInlineReturn(expression, location) {
        return ts.createReturn(ts.createArrayLiteral(expression
            ? [createInstruction(2), expression]
            : [createInstruction(2)]), location);
    }
    function createGeneratorResume(location) {
        return ts.createCall(ts.createPropertyAccess(state, "sent"), undefined, [], location);
    }
    function emitNop() {
        emitWorker(0);
    }
    function emitStatement(node) {
        if (node) {
            emitWorker(1, [node]);
        }
        else {
            emitNop();
        }
    }
    function emitAssignment(left, right, location) {
        emitWorker(2, [left, right], location);
    }
    function emitBreak(label, location) {
        emitWorker(3, [label], location);
    }
    function emitBreakWhenTrue(label, condition, location) {
        emitWorker(4, [label, condition], location);
    }
    function emitBreakWhenFalse(label, condition, location) {
        emitWorker(5, [label, condition], location);
    }
    function emitYieldStar(expression, location) {
        emitWorker(7, [expression], location);
    }
    function emitYield(expression, location) {
        emitWorker(6, [expression], location);
    }
    function emitReturn(expression, location) {
        emitWorker(8, [expression], location);
    }
    function emitThrow(expression, location) {
        emitWorker(9, [expression], location);
    }
    function emitEndfinally() {
        emitWorker(10);
    }
    function emitWorker(code, args, location) {
        if (operations === undefined) {
            operations = [];
            operationArguments = [];
            operationLocations = [];
        }
        if (labelOffsets === undefined) {
            markLabel(defineLabel());
        }
        var operationIndex = operations.length;
        operations[operationIndex] = code;
        operationArguments[operationIndex] = args;
        operationLocations[operationIndex] = location;
    }
    function build() {
        blockIndex = 0;
        labelNumber = 0;
        labelNumbers = undefined;
        lastOperationWasAbrupt = false;
        lastOperationWasCompletion = false;
        clauses = undefined;
        statements = undefined;
        exceptionBlockStack = undefined;
        currentExceptionBlock = undefined;
        withBlockStack = undefined;
        var buildResult = buildStatements();
        return createGeneratorHelper(context, ts.setEmitFlags(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, state)], undefined, ts.createBlock(buildResult, undefined, buildResult.length > 0)), 262144));
    }
    function buildStatements() {
        if (operations) {
            for (var operationIndex = 0; operationIndex < operations.length; operationIndex++) {
                writeOperation(operationIndex);
            }
            flushFinalLabel(operations.length);
        }
        else {
            flushFinalLabel(0);
        }
        if (clauses) {
            var labelExpression = ts.createPropertyAccess(state, "label");
            var switchStatement = ts.createSwitch(labelExpression, ts.createCaseBlock(clauses));
            switchStatement.startsOnNewLine = true;
            return [switchStatement];
        }
        if (statements) {
            return statements;
        }
        return [];
    }
    function flushLabel() {
        if (!statements) {
            return;
        }
        appendLabel(!lastOperationWasAbrupt);
        lastOperationWasAbrupt = false;
        lastOperationWasCompletion = false;
        labelNumber++;
    }
    function flushFinalLabel(operationIndex) {
        if (isFinalLabelReachable(operationIndex)) {
            tryEnterLabel(operationIndex);
            withBlockStack = undefined;
            writeReturn(undefined, undefined);
        }
        if (statements && clauses) {
            appendLabel(false);
        }
        updateLabelExpressions();
    }
    function isFinalLabelReachable(operationIndex) {
        if (!lastOperationWasCompletion) {
            return true;
        }
        if (!labelOffsets || !labelExpressions) {
            return false;
        }
        for (var label = 0; label < labelOffsets.length; label++) {
            if (labelOffsets[label] === operationIndex && labelExpressions[label]) {
                return true;
            }
        }
        return false;
    }
    function appendLabel(markLabelEnd) {
        if (!clauses) {
            clauses = [];
        }
        if (statements) {
            if (withBlockStack) {
                for (var i = withBlockStack.length - 1; i >= 0; i--) {
                    var withBlock = withBlockStack[i];
                    statements = [ts.createWith(withBlock.expression, ts.createBlock(statements))];
                }
            }
            if (currentExceptionBlock) {
                var startLabel = currentExceptionBlock.startLabel, catchLabel = currentExceptionBlock.catchLabel, finallyLabel = currentExceptionBlock.finallyLabel, endLabel = currentExceptionBlock.endLabel;
                statements.unshift(ts.createStatement(ts.createCall(ts.createPropertyAccess(ts.createPropertyAccess(state, "trys"), "push"), undefined, [
                    ts.createArrayLiteral([
                        createLabel(startLabel),
                        createLabel(catchLabel),
                        createLabel(finallyLabel),
                        createLabel(endLabel)
                    ])
                ])));
                currentExceptionBlock = undefined;
            }
            if (markLabelEnd) {
                statements.push(ts.createStatement(ts.createAssignment(ts.createPropertyAccess(state, "label"), ts.createLiteral(labelNumber + 1))));
            }
        }
        clauses.push(ts.createCaseClause(ts.createLiteral(labelNumber), statements || []));
        statements = undefined;
    }
    function tryEnterLabel(operationIndex) {
        if (!labelOffsets) {
            return;
        }
        for (var label = 0; label < labelOffsets.length; label++) {
            if (labelOffsets[label] === operationIndex) {
                flushLabel();
                if (labelNumbers === undefined) {
                    labelNumbers = [];
                }
                if (labelNumbers[labelNumber] === undefined) {
                    labelNumbers[labelNumber] = [label];
                }
                else {
                    labelNumbers[labelNumber].push(label);
                }
            }
        }
    }
    function updateLabelExpressions() {
        if (labelExpressions !== undefined && labelNumbers !== undefined) {
            for (var labelNumber_1 = 0; labelNumber_1 < labelNumbers.length; labelNumber_1++) {
                var labels = labelNumbers[labelNumber_1];
                if (labels !== undefined) {
                    for (var _i = 0, labels_1 = labels; _i < labels_1.length; _i++) {
                        var label = labels_1[_i];
                        var expressions = labelExpressions[label];
                        if (expressions !== undefined) {
                            for (var _a = 0, expressions_1 = expressions; _a < expressions_1.length; _a++) {
                                var expression = expressions_1[_a];
                                expression.text = String(labelNumber_1);
                            }
                        }
                    }
                }
            }
        }
    }
    function tryEnterOrLeaveBlock(operationIndex) {
        if (blocks) {
            for (; blockIndex < blockActions.length && blockOffsets[blockIndex] <= operationIndex; blockIndex++) {
                var block = blocks[blockIndex];
                var blockAction = blockActions[blockIndex];
                if (isExceptionBlock(block)) {
                    if (blockAction === 0) {
                        if (!exceptionBlockStack) {
                            exceptionBlockStack = [];
                        }
                        if (!statements) {
                            statements = [];
                        }
                        exceptionBlockStack.push(currentExceptionBlock);
                        currentExceptionBlock = block;
                    }
                    else if (blockAction === 1) {
                        currentExceptionBlock = exceptionBlockStack.pop();
                    }
                }
                else if (isWithBlock(block)) {
                    if (blockAction === 0) {
                        if (!withBlockStack) {
                            withBlockStack = [];
                        }
                        withBlockStack.push(block);
                    }
                    else if (blockAction === 1) {
                        withBlockStack.pop();
                    }
                }
            }
        }
    }
    function writeOperation(operationIndex) {
        tryEnterLabel(operationIndex);
        tryEnterOrLeaveBlock(operationIndex);
        if (lastOperationWasAbrupt) {
            return;
        }
        lastOperationWasAbrupt = false;
        lastOperationWasCompletion = false;
        var opcode = operations[operationIndex];
        if (opcode === 0) {
            return;
        }
        else if (opcode === 10) {
            return writeEndfinally();
        }
        var args = operationArguments[operationIndex];
        if (opcode === 1) {
            return writeStatement(args[0]);
        }
        var location = operationLocations[operationIndex];
        switch (opcode) {
            case 2:
                return writeAssign(args[0], args[1], location);
            case 3:
                return writeBreak(args[0], location);
            case 4:
                return writeBreakWhenTrue(args[0], args[1], location);
            case 5:
                return writeBreakWhenFalse(args[0], args[1], location);
            case 6:
                return writeYield(args[0], location);
            case 7:
                return writeYieldStar(args[0], location);
            case 8:
                return writeReturn(args[0], location);
            case 9:
                return writeThrow(args[0], location);
        }
    }
    function writeStatement(statement) {
        if (statement) {
            if (!statements) {
                statements = [statement];
            }
            else {
                statements.push(statement);
            }
        }
    }
    function writeAssign(left, right, operationLocation) {
        writeStatement(ts.createStatement(ts.createAssignment(left, right), operationLocation));
    }
    function writeThrow(expression, operationLocation) {
        lastOperationWasAbrupt = true;
        lastOperationWasCompletion = true;
        writeStatement(ts.createThrow(expression, operationLocation));
    }
    function writeReturn(expression, operationLocation) {
        lastOperationWasAbrupt = true;
        lastOperationWasCompletion = true;
        writeStatement(ts.setEmitFlags(ts.createReturn(ts.createArrayLiteral(expression
            ? [createInstruction(2), expression]
            : [createInstruction(2)]), operationLocation), 384));
    }
    function writeBreak(label, operationLocation) {
        lastOperationWasAbrupt = true;
        writeStatement(ts.setEmitFlags(ts.createReturn(ts.createArrayLiteral([
            createInstruction(3),
            createLabel(label)
        ]), operationLocation), 384));
    }
    function writeBreakWhenTrue(label, condition, operationLocation) {
        writeStatement(ts.setEmitFlags(ts.createIf(condition, ts.setEmitFlags(ts.createReturn(ts.createArrayLiteral([
            createInstruction(3),
            createLabel(label)
        ]), operationLocation), 384)), 1));
    }
    function writeBreakWhenFalse(label, condition, operationLocation) {
        writeStatement(ts.setEmitFlags(ts.createIf(ts.createLogicalNot(condition), ts.setEmitFlags(ts.createReturn(ts.createArrayLiteral([
            createInstruction(3),
            createLabel(label)
        ]), operationLocation), 384)), 1));
    }
    function writeYield(expression, operationLocation) {
        lastOperationWasAbrupt = true;
        writeStatement(ts.setEmitFlags(ts.createReturn(ts.createArrayLiteral(expression
            ? [createInstruction(4), expression]
            : [createInstruction(4)]), operationLocation), 384));
    }
    function writeYieldStar(expression, operationLocation) {
        lastOperationWasAbrupt = true;
        writeStatement(ts.setEmitFlags(ts.createReturn(ts.createArrayLiteral([
            createInstruction(5),
            expression
        ]), operationLocation), 384));
    }
    function writeEndfinally() {
        lastOperationWasAbrupt = true;
        writeStatement(ts.createReturn(ts.createArrayLiteral([
            createInstruction(7)
        ])));
    }
}
ts.transformGenerators = transformGenerators;
function createGeneratorHelper(context, body) {
    context.requestEmitHelper(generatorHelper);
    return ts.createCall(ts.getHelperName("__generator"), undefined, [ts.createThis(), body]);
}
var generatorHelper = {
    name: "typescript:generator",
    scoped: false,
    priority: 6,
    text: "\n            var __generator = (this && this.__generator) || function (thisArg, body) {\n                var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t;\n                return { next: verb(0), \"throw\": verb(1), \"return\": verb(2) };\n                function verb(n) { return function (v) { return step([n, v]); }; }\n                function step(op) {\n                    if (f) throw new TypeError(\"Generator is already executing.\");\n                    while (_) try {\n                        if (f = 1, y && (t = y[op[0] & 2 ? \"return\" : op[0] ? \"throw\" : \"next\"]) && !(t = t.call(y, op[1])).done) return t;\n                        if (y = 0, t) op = [0, t.value];\n                        switch (op[0]) {\n                            case 0: case 1: t = op; break;\n                            case 4: _.label++; return { value: op[1], done: false };\n                            case 5: _.label++; y = op[1]; op = [0]; continue;\n                            case 7: op = _.ops.pop(); _.trys.pop(); continue;\n                            default:\n                                if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n                                if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n                                if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n                                if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n                                if (t[2]) _.ops.pop();\n                                _.trys.pop(); continue;\n                        }\n                        op = body.call(thisArg, _);\n                    } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n                    if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n                }\n            };"
};
var _a;

})(ts || (ts = {})); var ts; (function (ts) {

function transformES5(context) {
    var compilerOptions = context.getCompilerOptions();
    var previousOnEmitNode;
    var noSubstitution;
    if (compilerOptions.jsx === 1) {
        previousOnEmitNode = context.onEmitNode;
        context.onEmitNode = onEmitNode;
        context.enableEmitNotification(248);
        context.enableEmitNotification(249);
        context.enableEmitNotification(247);
        noSubstitution = [];
    }
    var previousOnSubstituteNode = context.onSubstituteNode;
    context.onSubstituteNode = onSubstituteNode;
    context.enableSubstitution(177);
    context.enableSubstitution(257);
    return transformSourceFile;
    function transformSourceFile(node) {
        return node;
    }
    function onEmitNode(emitContext, node, emitCallback) {
        switch (node.kind) {
            case 248:
            case 249:
            case 247:
                var tagName = node.tagName;
                noSubstitution[ts.getOriginalNodeId(tagName)] = true;
                break;
        }
        previousOnEmitNode(emitContext, node, emitCallback);
    }
    function onSubstituteNode(emitContext, node) {
        if (node.id && noSubstitution && noSubstitution[node.id]) {
            return previousOnSubstituteNode(emitContext, node);
        }
        node = previousOnSubstituteNode(emitContext, node);
        if (ts.isPropertyAccessExpression(node)) {
            return substitutePropertyAccessExpression(node);
        }
        else if (ts.isPropertyAssignment(node)) {
            return substitutePropertyAssignment(node);
        }
        return node;
    }
    function substitutePropertyAccessExpression(node) {
        var literalName = trySubstituteReservedName(node.name);
        if (literalName) {
            return ts.createElementAccess(node.expression, literalName, node);
        }
        return node;
    }
    function substitutePropertyAssignment(node) {
        var literalName = ts.isIdentifier(node.name) && trySubstituteReservedName(node.name);
        if (literalName) {
            return ts.updatePropertyAssignment(node, literalName, node.initializer);
        }
        return node;
    }
    function trySubstituteReservedName(name) {
        var token = name.originalKeywordKind || (ts.nodeIsSynthesized(name) ? ts.stringToToken(name.text) : undefined);
        if (token >= 71 && token <= 106) {
            return ts.createLiteral(name, name);
        }
        return undefined;
    }
}
ts.transformES5 = transformES5;

})(ts || (ts = {})); var ts; (function (ts) {

function transformES2015Module(context) {
    var compilerOptions = context.getCompilerOptions();
    var previousOnEmitNode = context.onEmitNode;
    var previousOnSubstituteNode = context.onSubstituteNode;
    context.onEmitNode = onEmitNode;
    context.onSubstituteNode = onSubstituteNode;
    context.enableEmitNotification(261);
    context.enableSubstitution(70);
    var currentSourceFile;
    return transformSourceFile;
    function transformSourceFile(node) {
        if (ts.isDeclarationFile(node)) {
            return node;
        }
        if (ts.isExternalModule(node) || compilerOptions.isolatedModules) {
            var externalHelpersModuleName = ts.getOrCreateExternalHelpersModuleNameIfNeeded(node, compilerOptions);
            if (externalHelpersModuleName) {
                var statements = [];
                var statementOffset = ts.addPrologueDirectives(statements, node.statements);
                ts.append(statements, ts.createImportDeclaration(undefined, undefined, ts.createImportClause(undefined, ts.createNamespaceImport(externalHelpersModuleName)), ts.createLiteral(ts.externalHelpersModuleNameText)));
                ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
                return ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
            }
            else {
                return ts.visitEachChild(node, visitor, context);
            }
        }
        return node;
    }
    function visitor(node) {
        switch (node.kind) {
            case 234:
                return undefined;
            case 240:
                return visitExportAssignment(node);
        }
        return node;
    }
    function visitExportAssignment(node) {
        return node.isExportEquals ? undefined : node;
    }
    function onEmitNode(emitContext, node, emitCallback) {
        if (ts.isSourceFile(node)) {
            currentSourceFile = node;
            previousOnEmitNode(emitContext, node, emitCallback);
            currentSourceFile = undefined;
        }
        else {
            previousOnEmitNode(emitContext, node, emitCallback);
        }
    }
    function onSubstituteNode(emitContext, node) {
        node = previousOnSubstituteNode(emitContext, node);
        if (ts.isIdentifier(node) && emitContext === 1) {
            return substituteExpressionIdentifier(node);
        }
        return node;
    }
    function substituteExpressionIdentifier(node) {
        if (ts.getEmitFlags(node) & 4096) {
            var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
            if (externalHelpersModuleName) {
                return ts.createPropertyAccess(externalHelpersModuleName, node);
            }
        }
        return node;
    }
}
ts.transformES2015Module = transformES2015Module;

})(ts || (ts = {})); var ts; (function (ts) {

function transformSystemModule(context) {
    var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
    var compilerOptions = context.getCompilerOptions();
    var resolver = context.getEmitResolver();
    var host = context.getEmitHost();
    var previousOnSubstituteNode = context.onSubstituteNode;
    var previousOnEmitNode = context.onEmitNode;
    context.onSubstituteNode = onSubstituteNode;
    context.onEmitNode = onEmitNode;
    context.enableSubstitution(70);
    context.enableSubstitution(192);
    context.enableSubstitution(190);
    context.enableSubstitution(191);
    context.enableEmitNotification(261);
    var moduleInfoMap = ts.createMap();
    var deferredExports = ts.createMap();
    var exportFunctionsMap = ts.createMap();
    var noSubstitutionMap = ts.createMap();
    var currentSourceFile;
    var moduleInfo;
    var exportFunction;
    var contextObject;
    var hoistedStatements;
    var enclosingBlockScopedContainer;
    var noSubstitution;
    return transformSourceFile;
    function transformSourceFile(node) {
        if (ts.isDeclarationFile(node)
            || !(ts.isExternalModule(node)
                || compilerOptions.isolatedModules)) {
            return node;
        }
        var id = ts.getOriginalNodeId(node);
        currentSourceFile = node;
        enclosingBlockScopedContainer = node;
        moduleInfo = moduleInfoMap[id] = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
        exportFunction = exportFunctionsMap[id] = ts.createUniqueName("exports");
        contextObject = ts.createUniqueName("context");
        var dependencyGroups = collectDependencyGroups(moduleInfo.externalImports);
        var moduleBodyBlock = createSystemModuleBody(node, dependencyGroups);
        var moduleBodyFunction = ts.createFunctionExpression(undefined, undefined, undefined, undefined, [
            ts.createParameter(undefined, undefined, undefined, exportFunction),
            ts.createParameter(undefined, undefined, undefined, contextObject)
        ], undefined, moduleBodyBlock);
        var moduleName = ts.tryGetModuleNameFromFile(node, host, compilerOptions);
        var dependencies = ts.createArrayLiteral(ts.map(dependencyGroups, function (dependencyGroup) { return dependencyGroup.name; }));
        var updated = ts.setEmitFlags(ts.updateSourceFileNode(node, ts.createNodeArray([
            ts.createStatement(ts.createCall(ts.createPropertyAccess(ts.createIdentifier("System"), "register"), undefined, moduleName
                ? [moduleName, dependencies, moduleBodyFunction]
                : [dependencies, moduleBodyFunction]))
        ], node.statements)), 1024);
        if (!(compilerOptions.outFile || compilerOptions.out)) {
            ts.moveEmitHelpers(updated, moduleBodyBlock, function (helper) { return !helper.scoped; });
        }
        if (noSubstitution) {
            noSubstitutionMap[id] = noSubstitution;
            noSubstitution = undefined;
        }
        currentSourceFile = undefined;
        moduleInfo = undefined;
        exportFunction = undefined;
        contextObject = undefined;
        hoistedStatements = undefined;
        enclosingBlockScopedContainer = undefined;
        return ts.aggregateTransformFlags(updated);
    }
    function collectDependencyGroups(externalImports) {
        var groupIndices = ts.createMap();
        var dependencyGroups = [];
        for (var i = 0; i < externalImports.length; i++) {
            var externalImport = externalImports[i];
            var externalModuleName = ts.getExternalModuleNameLiteral(externalImport, currentSourceFile, host, resolver, compilerOptions);
            var text = externalModuleName.text;
            if (ts.hasProperty(groupIndices, text)) {
                var groupIndex = groupIndices[text];
                dependencyGroups[groupIndex].externalImports.push(externalImport);
            }
            else {
                groupIndices[text] = dependencyGroups.length;
                dependencyGroups.push({
                    name: externalModuleName,
                    externalImports: [externalImport]
                });
            }
        }
        return dependencyGroups;
    }
    function createSystemModuleBody(node, dependencyGroups) {
        var statements = [];
        startLexicalEnvironment();
        var statementOffset = ts.addPrologueDirectives(statements, node.statements, !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
        statements.push(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
            ts.createVariableDeclaration("__moduleName", undefined, ts.createLogicalAnd(contextObject, ts.createPropertyAccess(contextObject, "id")))
        ])));
        ts.visitNode(moduleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, true);
        var executeStatements = ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset);
        ts.addRange(statements, hoistedStatements);
        ts.addRange(statements, endLexicalEnvironment());
        var exportStarFunction = addExportStarIfNeeded(statements);
        statements.push(ts.createReturn(ts.setMultiLine(ts.createObjectLiteral([
            ts.createPropertyAssignment("setters", createSettersArray(exportStarFunction, dependencyGroups)),
            ts.createPropertyAssignment("execute", ts.createFunctionExpression(undefined, undefined, undefined, undefined, [], undefined, ts.createBlock(executeStatements, undefined, true)))
        ]), true)));
        return ts.createBlock(statements, undefined, true);
    }
    function addExportStarIfNeeded(statements) {
        if (!moduleInfo.hasExportStarsToExportValues) {
            return;
        }
        if (!moduleInfo.exportedNames && ts.isEmpty(moduleInfo.exportSpecifiers)) {
            var hasExportDeclarationWithExportClause = false;
            for (var _i = 0, _a = moduleInfo.externalImports; _i < _a.length; _i++) {
                var externalImport = _a[_i];
                if (externalImport.kind === 241 && externalImport.exportClause) {
                    hasExportDeclarationWithExportClause = true;
                    break;
                }
            }
            if (!hasExportDeclarationWithExportClause) {
                var exportStarFunction_1 = createExportStarFunction(undefined);
                statements.push(exportStarFunction_1);
                return exportStarFunction_1.name;
            }
        }
        var exportedNames = [];
        if (moduleInfo.exportedNames) {
            for (var _b = 0, _c = moduleInfo.exportedNames; _b < _c.length; _b++) {
                var exportedLocalName = _c[_b];
                if (exportedLocalName.text === "default") {
                    continue;
                }
                exportedNames.push(ts.createPropertyAssignment(ts.createLiteral(exportedLocalName), ts.createLiteral(true)));
            }
        }
        for (var _d = 0, _e = moduleInfo.externalImports; _d < _e.length; _d++) {
            var externalImport = _e[_d];
            if (externalImport.kind !== 241) {
                continue;
            }
            var exportDecl = externalImport;
            if (!exportDecl.exportClause) {
                continue;
            }
            for (var _f = 0, _g = exportDecl.exportClause.elements; _f < _g.length; _f++) {
                var element = _g[_f];
                exportedNames.push(ts.createPropertyAssignment(ts.createLiteral((element.name || element.propertyName).text), ts.createLiteral(true)));
            }
        }
        var exportedNamesStorageRef = ts.createUniqueName("exportedNames");
        statements.push(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
            ts.createVariableDeclaration(exportedNamesStorageRef, undefined, ts.createObjectLiteral(exportedNames, undefined, true))
        ])));
        var exportStarFunction = createExportStarFunction(exportedNamesStorageRef);
        statements.push(exportStarFunction);
        return exportStarFunction.name;
    }
    function createExportStarFunction(localNames) {
        var exportStarFunction = ts.createUniqueName("exportStar");
        var m = ts.createIdentifier("m");
        var n = ts.createIdentifier("n");
        var exports = ts.createIdentifier("exports");
        var condition = ts.createStrictInequality(n, ts.createLiteral("default"));
        if (localNames) {
            condition = ts.createLogicalAnd(condition, ts.createLogicalNot(ts.createCall(ts.createPropertyAccess(localNames, "hasOwnProperty"), undefined, [n])));
        }
        return ts.createFunctionDeclaration(undefined, undefined, undefined, exportStarFunction, undefined, [ts.createParameter(undefined, undefined, undefined, m)], undefined, ts.createBlock([
            ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
                ts.createVariableDeclaration(exports, undefined, ts.createObjectLiteral([]))
            ])),
            ts.createForIn(ts.createVariableDeclarationList([
                ts.createVariableDeclaration(n, undefined)
            ]), m, ts.createBlock([
                ts.setEmitFlags(ts.createIf(condition, ts.createStatement(ts.createAssignment(ts.createElementAccess(exports, n), ts.createElementAccess(m, n)))), 1)
            ])),
            ts.createStatement(ts.createCall(exportFunction, undefined, [exports]))
        ], undefined, true));
    }
    function createSettersArray(exportStarFunction, dependencyGroups) {
        var setters = [];
        for (var _i = 0, dependencyGroups_1 = dependencyGroups; _i < dependencyGroups_1.length; _i++) {
            var group = dependencyGroups_1[_i];
            var localName = ts.forEach(group.externalImports, function (i) { return ts.getLocalNameForExternalImport(i, currentSourceFile); });
            var parameterName = localName ? ts.getGeneratedNameForNode(localName) : ts.createUniqueName("");
            var statements = [];
            for (var _a = 0, _b = group.externalImports; _a < _b.length; _a++) {
                var entry = _b[_a];
                var importVariableName = ts.getLocalNameForExternalImport(entry, currentSourceFile);
                switch (entry.kind) {
                    case 235:
                        if (!entry.importClause) {
                            break;
                        }
                    case 234:
                        ts.Debug.assert(importVariableName !== undefined);
                        statements.push(ts.createStatement(ts.createAssignment(importVariableName, parameterName)));
                        break;
                    case 241:
                        ts.Debug.assert(importVariableName !== undefined);
                        if (entry.exportClause) {
                            var properties = [];
                            for (var _c = 0, _d = entry.exportClause.elements; _c < _d.length; _c++) {
                                var e = _d[_c];
                                properties.push(ts.createPropertyAssignment(ts.createLiteral(e.name.text), ts.createElementAccess(parameterName, ts.createLiteral((e.propertyName || e.name).text))));
                            }
                            statements.push(ts.createStatement(ts.createCall(exportFunction, undefined, [ts.createObjectLiteral(properties, undefined, true)])));
                        }
                        else {
                            statements.push(ts.createStatement(ts.createCall(exportStarFunction, undefined, [parameterName])));
                        }
                        break;
                }
            }
            setters.push(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, parameterName)], undefined, ts.createBlock(statements, undefined, true)));
        }
        return ts.createArrayLiteral(setters, undefined, true);
    }
    function sourceElementVisitor(node) {
        switch (node.kind) {
            case 235:
                return visitImportDeclaration(node);
            case 234:
                return visitImportEqualsDeclaration(node);
            case 241:
                return undefined;
            case 240:
                return visitExportAssignment(node);
            default:
                return nestedElementVisitor(node);
        }
    }
    function visitImportDeclaration(node) {
        var statements;
        if (node.importClause) {
            hoistVariableDeclaration(ts.getLocalNameForExternalImport(node, currentSourceFile));
        }
        if (hasAssociatedEndOfDeclarationMarker(node)) {
            var id = ts.getOriginalNodeId(node);
            deferredExports[id] = appendExportsOfImportDeclaration(deferredExports[id], node);
        }
        else {
            statements = appendExportsOfImportDeclaration(statements, node);
        }
        return ts.singleOrMany(statements);
    }
    function visitImportEqualsDeclaration(node) {
        ts.Debug.assert(ts.isExternalModuleImportEqualsDeclaration(node), "import= for internal module references should be handled in an earlier transformer.");
        var statements;
        hoistVariableDeclaration(ts.getLocalNameForExternalImport(node, currentSourceFile));
        if (hasAssociatedEndOfDeclarationMarker(node)) {
            var id = ts.getOriginalNodeId(node);
            deferredExports[id] = appendExportsOfImportEqualsDeclaration(deferredExports[id], node);
        }
        else {
            statements = appendExportsOfImportEqualsDeclaration(statements, node);
        }
        return ts.singleOrMany(statements);
    }
    function visitExportAssignment(node) {
        if (node.isExportEquals) {
            return undefined;
        }
        var expression = ts.visitNode(node.expression, destructuringVisitor, ts.isExpression);
        var original = node.original;
        if (original && hasAssociatedEndOfDeclarationMarker(original)) {
            var id = ts.getOriginalNodeId(node);
            deferredExports[id] = appendExportStatement(deferredExports[id], ts.createIdentifier("default"), expression, true);
        }
        else {
            return createExportStatement(ts.createIdentifier("default"), expression, true);
        }
    }
    function visitFunctionDeclaration(node) {
        if (ts.hasModifier(node, 1)) {
            hoistedStatements = ts.append(hoistedStatements, ts.updateFunctionDeclaration(node, node.decorators, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), ts.getDeclarationName(node, true, true), undefined, ts.visitNodes(node.parameters, destructuringVisitor, ts.isParameterDeclaration), undefined, ts.visitNode(node.body, destructuringVisitor, ts.isBlock)));
        }
        else {
            hoistedStatements = ts.append(hoistedStatements, node);
        }
        if (hasAssociatedEndOfDeclarationMarker(node)) {
            var id = ts.getOriginalNodeId(node);
            deferredExports[id] = appendExportsOfHoistedDeclaration(deferredExports[id], node);
        }
        else {
            hoistedStatements = appendExportsOfHoistedDeclaration(hoistedStatements, node);
        }
        return undefined;
    }
    function visitClassDeclaration(node) {
        var statements;
        var name = ts.getLocalName(node);
        hoistVariableDeclaration(name);
        statements = ts.append(statements, ts.createStatement(ts.createAssignment(name, ts.createClassExpression(undefined, node.name, undefined, ts.visitNodes(node.heritageClauses, destructuringVisitor, ts.isHeritageClause), ts.visitNodes(node.members, destructuringVisitor, ts.isClassElement), node)), node));
        if (hasAssociatedEndOfDeclarationMarker(node)) {
            var id = ts.getOriginalNodeId(node);
            deferredExports[id] = appendExportsOfHoistedDeclaration(deferredExports[id], node);
        }
        else {
            statements = appendExportsOfHoistedDeclaration(statements, node);
        }
        return ts.singleOrMany(statements);
    }
    function visitVariableStatement(node) {
        if (!shouldHoistVariableDeclarationList(node.declarationList)) {
            return ts.visitNode(node, destructuringVisitor, ts.isStatement);
        }
        var expressions;
        var isExportedDeclaration = ts.hasModifier(node, 1);
        var isMarkedDeclaration = hasAssociatedEndOfDeclarationMarker(node);
        for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
            var variable = _a[_i];
            if (variable.initializer) {
                expressions = ts.append(expressions, transformInitializedVariable(variable, isExportedDeclaration && !isMarkedDeclaration));
            }
            else {
                hoistBindingElement(variable);
            }
        }
        var statements;
        if (expressions) {
            statements = ts.append(statements, ts.createStatement(ts.inlineExpressions(expressions), node));
        }
        if (isMarkedDeclaration) {
            var id = ts.getOriginalNodeId(node);
            deferredExports[id] = appendExportsOfVariableStatement(deferredExports[id], node, isExportedDeclaration);
        }
        else {
            statements = appendExportsOfVariableStatement(statements, node, false);
        }
        return ts.singleOrMany(statements);
    }
    function hoistBindingElement(node) {
        if (ts.isBindingPattern(node.name)) {
            for (var _i = 0, _a = node.name.elements; _i < _a.length; _i++) {
                var element = _a[_i];
                if (!ts.isOmittedExpression(element)) {
                    hoistBindingElement(element);
                }
            }
        }
        else {
            hoistVariableDeclaration(ts.getSynthesizedClone(node.name));
        }
    }
    function shouldHoistVariableDeclarationList(node) {
        return (ts.getEmitFlags(node) & 1048576) === 0
            && (enclosingBlockScopedContainer.kind === 261
                || (ts.getOriginalNode(node).flags & 3) === 0);
    }
    function transformInitializedVariable(node, isExportedDeclaration) {
        var createAssignment = isExportedDeclaration ? createExportedVariableAssignment : createNonExportedVariableAssignment;
        return ts.isBindingPattern(node.name)
            ? ts.flattenDestructuringAssignment(node, destructuringVisitor, context, 0, false, createAssignment)
            : createAssignment(node.name, ts.visitNode(node.initializer, destructuringVisitor, ts.isExpression));
    }
    function createExportedVariableAssignment(name, value, location) {
        return createVariableAssignment(name, value, location, true);
    }
    function createNonExportedVariableAssignment(name, value, location) {
        return createVariableAssignment(name, value, location, false);
    }
    function createVariableAssignment(name, value, location, isExportedDeclaration) {
        hoistVariableDeclaration(ts.getSynthesizedClone(name));
        return isExportedDeclaration
            ? createExportExpression(name, preventSubstitution(ts.createAssignment(name, value, location)))
            : preventSubstitution(ts.createAssignment(name, value, location));
    }
    function visitMergeDeclarationMarker(node) {
        if (hasAssociatedEndOfDeclarationMarker(node) && node.original.kind === 205) {
            var id = ts.getOriginalNodeId(node);
            var isExportedDeclaration = ts.hasModifier(node.original, 1);
            deferredExports[id] = appendExportsOfVariableStatement(deferredExports[id], node.original, isExportedDeclaration);
        }
        return node;
    }
    function hasAssociatedEndOfDeclarationMarker(node) {
        return (ts.getEmitFlags(node) & 2097152) !== 0;
    }
    function visitEndOfDeclarationMarker(node) {
        var id = ts.getOriginalNodeId(node);
        var statements = deferredExports[id];
        if (statements) {
            delete deferredExports[id];
            return ts.append(statements, node);
        }
        return node;
    }
    function appendExportsOfImportDeclaration(statements, decl) {
        if (moduleInfo.exportEquals) {
            return statements;
        }
        var importClause = decl.importClause;
        if (!importClause) {
            return statements;
        }
        if (importClause.name) {
            statements = appendExportsOfDeclaration(statements, importClause);
        }
        var namedBindings = importClause.namedBindings;
        if (namedBindings) {
            switch (namedBindings.kind) {
                case 237:
                    statements = appendExportsOfDeclaration(statements, namedBindings);
                    break;
                case 238:
                    for (var _i = 0, _a = namedBindings.elements; _i < _a.length; _i++) {
                        var importBinding = _a[_i];
                        statements = appendExportsOfDeclaration(statements, importBinding);
                    }
                    break;
            }
        }
        return statements;
    }
    function appendExportsOfImportEqualsDeclaration(statements, decl) {
        if (moduleInfo.exportEquals) {
            return statements;
        }
        return appendExportsOfDeclaration(statements, decl);
    }
    function appendExportsOfVariableStatement(statements, node, exportSelf) {
        if (moduleInfo.exportEquals) {
            return statements;
        }
        for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
            var decl = _a[_i];
            if (decl.initializer || exportSelf) {
                statements = appendExportsOfBindingElement(statements, decl, exportSelf);
            }
        }
        return statements;
    }
    function appendExportsOfBindingElement(statements, decl, exportSelf) {
        if (moduleInfo.exportEquals) {
            return statements;
        }
        if (ts.isBindingPattern(decl.name)) {
            for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
                var element = _a[_i];
                if (!ts.isOmittedExpression(element)) {
                    statements = appendExportsOfBindingElement(statements, element, exportSelf);
                }
            }
        }
        else if (!ts.isGeneratedIdentifier(decl.name)) {
            var excludeName = void 0;
            if (exportSelf) {
                statements = appendExportStatement(statements, decl.name, ts.getLocalName(decl));
                excludeName = decl.name.text;
            }
            statements = appendExportsOfDeclaration(statements, decl, excludeName);
        }
        return statements;
    }
    function appendExportsOfHoistedDeclaration(statements, decl) {
        if (moduleInfo.exportEquals) {
            return statements;
        }
        var excludeName;
        if (ts.hasModifier(decl, 1)) {
            var exportName = ts.hasModifier(decl, 512) ? ts.createLiteral("default") : decl.name;
            statements = appendExportStatement(statements, exportName, ts.getLocalName(decl));
            excludeName = exportName.text;
        }
        if (decl.name) {
            statements = appendExportsOfDeclaration(statements, decl, excludeName);
        }
        return statements;
    }
    function appendExportsOfDeclaration(statements, decl, excludeName) {
        if (moduleInfo.exportEquals) {
            return statements;
        }
        var name = ts.getDeclarationName(decl);
        var exportSpecifiers = moduleInfo.exportSpecifiers[name.text];
        if (exportSpecifiers) {
            for (var _i = 0, exportSpecifiers_1 = exportSpecifiers; _i < exportSpecifiers_1.length; _i++) {
                var exportSpecifier = exportSpecifiers_1[_i];
                if (exportSpecifier.name.text !== excludeName) {
                    statements = appendExportStatement(statements, exportSpecifier.name, name);
                }
            }
        }
        return statements;
    }
    function appendExportStatement(statements, exportName, expression, allowComments) {
        statements = ts.append(statements, createExportStatement(exportName, expression, allowComments));
        return statements;
    }
    function createExportStatement(name, value, allowComments) {
        var statement = ts.createStatement(createExportExpression(name, value));
        ts.startOnNewLine(statement);
        if (!allowComments) {
            ts.setEmitFlags(statement, 1536);
        }
        return statement;
    }
    function createExportExpression(name, value) {
        var exportName = ts.isIdentifier(name) ? ts.createLiteral(name) : name;
        return ts.createCall(exportFunction, undefined, [exportName, value]);
    }
    function nestedElementVisitor(node) {
        switch (node.kind) {
            case 205:
                return visitVariableStatement(node);
            case 225:
                return visitFunctionDeclaration(node);
            case 226:
                return visitClassDeclaration(node);
            case 211:
                return visitForStatement(node);
            case 212:
                return visitForInStatement(node);
            case 213:
                return visitForOfStatement(node);
            case 209:
                return visitDoStatement(node);
            case 210:
                return visitWhileStatement(node);
            case 219:
                return visitLabeledStatement(node);
            case 217:
                return visitWithStatement(node);
            case 218:
                return visitSwitchStatement(node);
            case 232:
                return visitCaseBlock(node);
            case 253:
                return visitCaseClause(node);
            case 254:
                return visitDefaultClause(node);
            case 221:
                return visitTryStatement(node);
            case 256:
                return visitCatchClause(node);
            case 204:
                return visitBlock(node);
            case 295:
                return visitMergeDeclarationMarker(node);
            case 296:
                return visitEndOfDeclarationMarker(node);
            default:
                return destructuringVisitor(node);
        }
    }
    function visitForStatement(node) {
        var savedEnclosingBlockScopedContainer = enclosingBlockScopedContainer;
        enclosingBlockScopedContainer = node;
        node = ts.updateFor(node, visitForInitializer(node.initializer), ts.visitNode(node.condition, destructuringVisitor, ts.isExpression, true), ts.visitNode(node.incrementor, destructuringVisitor, ts.isExpression, true), ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement));
        enclosingBlockScopedContainer = savedEnclosingBlockScopedContainer;
        return node;
    }
    function visitForInStatement(node) {
        var savedEnclosingBlockScopedContainer = enclosingBlockScopedContainer;
        enclosingBlockScopedContainer = node;
        node = ts.updateForIn(node, visitForInitializer(node.initializer), ts.visitNode(node.expression, destructuringVisitor, ts.isExpression), ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement, false, ts.liftToBlock));
        enclosingBlockScopedContainer = savedEnclosingBlockScopedContainer;
        return node;
    }
    function visitForOfStatement(node) {
        var savedEnclosingBlockScopedContainer = enclosingBlockScopedContainer;
        enclosingBlockScopedContainer = node;
        node = ts.updateForOf(node, visitForInitializer(node.initializer), ts.visitNode(node.expression, destructuringVisitor, ts.isExpression), ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement, false, ts.liftToBlock));
        enclosingBlockScopedContainer = savedEnclosingBlockScopedContainer;
        return node;
    }
    function shouldHoistForInitializer(node) {
        return ts.isVariableDeclarationList(node)
            && shouldHoistVariableDeclarationList(node);
    }
    function visitForInitializer(node) {
        if (shouldHoistForInitializer(node)) {
            var expressions = void 0;
            for (var _i = 0, _a = node.declarations; _i < _a.length; _i++) {
                var variable = _a[_i];
                expressions = ts.append(expressions, transformInitializedVariable(variable, false));
            }
            return expressions ? ts.inlineExpressions(expressions) : ts.createOmittedExpression();
        }
        else {
            return ts.visitEachChild(node, nestedElementVisitor, context);
        }
    }
    function visitDoStatement(node) {
        return ts.updateDo(node, ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement, false, ts.liftToBlock), ts.visitNode(node.expression, destructuringVisitor, ts.isExpression));
    }
    function visitWhileStatement(node) {
        return ts.updateWhile(node, ts.visitNode(node.expression, destructuringVisitor, ts.isExpression), ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement, false, ts.liftToBlock));
    }
    function visitLabeledStatement(node) {
        return ts.updateLabel(node, node.label, ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement, false, ts.liftToBlock));
    }
    function visitWithStatement(node) {
        return ts.updateWith(node, ts.visitNode(node.expression, destructuringVisitor, ts.isExpression), ts.visitNode(node.statement, nestedElementVisitor, ts.isStatement, false, ts.liftToBlock));
    }
    function visitSwitchStatement(node) {
        return ts.updateSwitch(node, ts.visitNode(node.expression, destructuringVisitor, ts.isExpression), ts.visitNode(node.caseBlock, nestedElementVisitor, ts.isCaseBlock));
    }
    function visitCaseBlock(node) {
        var savedEnclosingBlockScopedContainer = enclosingBlockScopedContainer;
        enclosingBlockScopedContainer = node;
        node = ts.updateCaseBlock(node, ts.visitNodes(node.clauses, nestedElementVisitor, ts.isCaseOrDefaultClause));
        enclosingBlockScopedContainer = savedEnclosingBlockScopedContainer;
        return node;
    }
    function visitCaseClause(node) {
        return ts.updateCaseClause(node, ts.visitNode(node.expression, destructuringVisitor, ts.isExpression), ts.visitNodes(node.statements, nestedElementVisitor, ts.isStatement));
    }
    function visitDefaultClause(node) {
        return ts.visitEachChild(node, nestedElementVisitor, context);
    }
    function visitTryStatement(node) {
        return ts.visitEachChild(node, nestedElementVisitor, context);
    }
    function visitCatchClause(node) {
        var savedEnclosingBlockScopedContainer = enclosingBlockScopedContainer;
        enclosingBlockScopedContainer = node;
        node = ts.updateCatchClause(node, node.variableDeclaration, ts.visitNode(node.block, nestedElementVisitor, ts.isBlock));
        enclosingBlockScopedContainer = savedEnclosingBlockScopedContainer;
        return node;
    }
    function visitBlock(node) {
        var savedEnclosingBlockScopedContainer = enclosingBlockScopedContainer;
        enclosingBlockScopedContainer = node;
        node = ts.visitEachChild(node, nestedElementVisitor, context);
        enclosingBlockScopedContainer = savedEnclosingBlockScopedContainer;
        return node;
    }
    function destructuringVisitor(node) {
        if (node.transformFlags & 1024
            && node.kind === 192) {
            return visitDestructuringAssignment(node);
        }
        else if (node.transformFlags & 2048) {
            return ts.visitEachChild(node, destructuringVisitor, context);
        }
        else {
            return node;
        }
    }
    function visitDestructuringAssignment(node) {
        if (hasExportedReferenceInDestructuringTarget(node.left)) {
            return ts.flattenDestructuringAssignment(node, destructuringVisitor, context, 0, true);
        }
        return ts.visitEachChild(node, destructuringVisitor, context);
    }
    function hasExportedReferenceInDestructuringTarget(node) {
        if (ts.isAssignmentExpression(node)) {
            return hasExportedReferenceInDestructuringTarget(node.left);
        }
        else if (ts.isSpreadExpression(node)) {
            return hasExportedReferenceInDestructuringTarget(node.expression);
        }
        else if (ts.isObjectLiteralExpression(node)) {
            return ts.some(node.properties, hasExportedReferenceInDestructuringTarget);
        }
        else if (ts.isArrayLiteralExpression(node)) {
            return ts.some(node.elements, hasExportedReferenceInDestructuringTarget);
        }
        else if (ts.isShorthandPropertyAssignment(node)) {
            return hasExportedReferenceInDestructuringTarget(node.name);
        }
        else if (ts.isPropertyAssignment(node)) {
            return hasExportedReferenceInDestructuringTarget(node.initializer);
        }
        else if (ts.isIdentifier(node)) {
            var container = resolver.getReferencedExportContainer(node);
            return container !== undefined && container.kind === 261;
        }
        else {
            return false;
        }
    }
    function modifierVisitor(node) {
        switch (node.kind) {
            case 83:
            case 78:
                return undefined;
        }
        return node;
    }
    function onEmitNode(emitContext, node, emitCallback) {
        if (node.kind === 261) {
            var id = ts.getOriginalNodeId(node);
            currentSourceFile = node;
            moduleInfo = moduleInfoMap[id];
            exportFunction = exportFunctionsMap[id];
            noSubstitution = noSubstitutionMap[id];
            if (noSubstitution) {
                delete noSubstitutionMap[id];
            }
            previousOnEmitNode(emitContext, node, emitCallback);
            currentSourceFile = undefined;
            moduleInfo = undefined;
            exportFunction = undefined;
            noSubstitution = undefined;
        }
        else {
            previousOnEmitNode(emitContext, node, emitCallback);
        }
    }
    function onSubstituteNode(emitContext, node) {
        node = previousOnSubstituteNode(emitContext, node);
        if (isSubstitutionPrevented(node)) {
            return node;
        }
        if (emitContext === 1) {
            return substituteExpression(node);
        }
        return node;
    }
    function substituteExpression(node) {
        switch (node.kind) {
            case 70:
                return substituteExpressionIdentifier(node);
            case 192:
                return substituteBinaryExpression(node);
            case 190:
            case 191:
                return substituteUnaryExpression(node);
        }
        return node;
    }
    function substituteExpressionIdentifier(node) {
        if (ts.getEmitFlags(node) & 4096) {
            var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
            if (externalHelpersModuleName) {
                return ts.createPropertyAccess(externalHelpersModuleName, node);
            }
            return node;
        }
        if (!ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
            var importDeclaration = resolver.getReferencedImportDeclaration(node);
            if (importDeclaration) {
                if (ts.isImportClause(importDeclaration)) {
                    return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent), ts.createIdentifier("default"), node);
                }
                else if (ts.isImportSpecifier(importDeclaration)) {
                    return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(importDeclaration.propertyName || importDeclaration.name), node);
                }
            }
        }
        return node;
    }
    function substituteBinaryExpression(node) {
        if (ts.isAssignmentOperator(node.operatorToken.kind)
            && ts.isIdentifier(node.left)
            && !ts.isGeneratedIdentifier(node.left)
            && !ts.isLocalName(node.left)
            && !ts.isDeclarationNameOfEnumOrNamespace(node.left)) {
            var exportedNames = getExports(node.left);
            if (exportedNames) {
                var expression = node;
                for (var _i = 0, exportedNames_1 = exportedNames; _i < exportedNames_1.length; _i++) {
                    var exportName = exportedNames_1[_i];
                    expression = createExportExpression(exportName, preventSubstitution(expression));
                }
                return expression;
            }
        }
        return node;
    }
    function substituteUnaryExpression(node) {
        if ((node.operator === 42 || node.operator === 43)
            && ts.isIdentifier(node.operand)
            && !ts.isGeneratedIdentifier(node.operand)
            && !ts.isLocalName(node.operand)
            && !ts.isDeclarationNameOfEnumOrNamespace(node.operand)) {
            var exportedNames = getExports(node.operand);
            if (exportedNames) {
                var expression = node.kind === 191
                    ? ts.createPrefix(node.operator, node.operand, node)
                    : node;
                for (var _i = 0, exportedNames_2 = exportedNames; _i < exportedNames_2.length; _i++) {
                    var exportName = exportedNames_2[_i];
                    expression = createExportExpression(exportName, preventSubstitution(expression));
                }
                if (node.kind === 191) {
                    expression = node.operator === 42
                        ? ts.createSubtract(preventSubstitution(expression), ts.createLiteral(1))
                        : ts.createAdd(preventSubstitution(expression), ts.createLiteral(1));
                }
                return expression;
            }
        }
        return node;
    }
    function getExports(name) {
        var exportedNames;
        if (!ts.isGeneratedIdentifier(name)) {
            var valueDeclaration = resolver.getReferencedImportDeclaration(name)
                || resolver.getReferencedValueDeclaration(name);
            if (valueDeclaration) {
                var exportContainer = resolver.getReferencedExportContainer(name, false);
                if (exportContainer && exportContainer.kind === 261) {
                    exportedNames = ts.append(exportedNames, ts.getDeclarationName(valueDeclaration));
                }
                exportedNames = ts.addRange(exportedNames, moduleInfo && moduleInfo.exportedBindings[ts.getOriginalNodeId(valueDeclaration)]);
            }
        }
        return exportedNames;
    }
    function preventSubstitution(node) {
        if (noSubstitution === undefined)
            noSubstitution = ts.createMap();
        noSubstitution[ts.getNodeId(node)] = true;
        return node;
    }
    function isSubstitutionPrevented(node) {
        return noSubstitution && node.id && noSubstitution[node.id];
    }
}
ts.transformSystemModule = transformSystemModule;

})(ts || (ts = {})); var ts; (function (ts) {

function transformModule(context) {
    var transformModuleDelegates = ts.createMap((_a = {},
        _a[ts.ModuleKind.None] = transformCommonJSModule,
        _a[ts.ModuleKind.CommonJS] = transformCommonJSModule,
        _a[ts.ModuleKind.AMD] = transformAMDModule,
        _a[ts.ModuleKind.UMD] = transformUMDModule,
        _a));
    var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
    var compilerOptions = context.getCompilerOptions();
    var resolver = context.getEmitResolver();
    var host = context.getEmitHost();
    var languageVersion = ts.getEmitScriptTarget(compilerOptions);
    var moduleKind = ts.getEmitModuleKind(compilerOptions);
    var previousOnSubstituteNode = context.onSubstituteNode;
    var previousOnEmitNode = context.onEmitNode;
    context.onSubstituteNode = onSubstituteNode;
    context.onEmitNode = onEmitNode;
    context.enableSubstitution(70);
    context.enableSubstitution(192);
    context.enableSubstitution(190);
    context.enableSubstitution(191);
    context.enableSubstitution(258);
    context.enableEmitNotification(261);
    var moduleInfoMap = ts.createMap();
    var deferredExports = ts.createMap();
    var currentSourceFile;
    var currentModuleInfo;
    var noSubstitution;
    return transformSourceFile;
    function transformSourceFile(node) {
        if (ts.isDeclarationFile(node)
            || !(ts.isExternalModule(node)
                || compilerOptions.isolatedModules)) {
            return node;
        }
        currentSourceFile = node;
        currentModuleInfo = moduleInfoMap[ts.getOriginalNodeId(node)] = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
        var transformModule = transformModuleDelegates[moduleKind] || transformModuleDelegates[ts.ModuleKind.None];
        var updated = transformModule(node);
        currentSourceFile = undefined;
        currentModuleInfo = undefined;
        return ts.aggregateTransformFlags(updated);
    }
    function transformCommonJSModule(node) {
        startLexicalEnvironment();
        var statements = [];
        var statementOffset = ts.addPrologueDirectives(statements, node.statements, !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
        ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, true));
        ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
        ts.addRange(statements, endLexicalEnvironment());
        addExportEqualsIfNeeded(statements, false);
        var updated = ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
        if (currentModuleInfo.hasExportStarsToExportValues) {
            ts.addEmitHelper(updated, exportStarHelper);
        }
        return updated;
    }
    function transformAMDModule(node) {
        var define = ts.createIdentifier("define");
        var moduleName = ts.tryGetModuleNameFromFile(node, host, compilerOptions);
        var _a = collectAsynchronousDependencies(node, true), aliasedModuleNames = _a.aliasedModuleNames, unaliasedModuleNames = _a.unaliasedModuleNames, importAliasNames = _a.importAliasNames;
        return ts.updateSourceFileNode(node, ts.createNodeArray([
            ts.createStatement(ts.createCall(define, undefined, (moduleName ? [moduleName] : []).concat([
                ts.createArrayLiteral([
                    ts.createLiteral("require"),
                    ts.createLiteral("exports")
                ].concat(aliasedModuleNames, unaliasedModuleNames)),
                ts.createFunctionExpression(undefined, undefined, undefined, undefined, [
                    ts.createParameter(undefined, undefined, undefined, "require"),
                    ts.createParameter(undefined, undefined, undefined, "exports")
                ].concat(importAliasNames), undefined, transformAsynchronousModuleBody(node))
            ])))
        ], node.statements));
    }
    function transformUMDModule(node) {
        var _a = collectAsynchronousDependencies(node, false), aliasedModuleNames = _a.aliasedModuleNames, unaliasedModuleNames = _a.unaliasedModuleNames, importAliasNames = _a.importAliasNames;
        var umdHeader = ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, "factory")], undefined, ts.createBlock([
            ts.createIf(ts.createLogicalAnd(ts.createTypeCheck(ts.createIdentifier("module"), "object"), ts.createTypeCheck(ts.createPropertyAccess(ts.createIdentifier("module"), "exports"), "object")), ts.createBlock([
                ts.createVariableStatement(undefined, [
                    ts.createVariableDeclaration("v", undefined, ts.createCall(ts.createIdentifier("factory"), undefined, [
                        ts.createIdentifier("require"),
                        ts.createIdentifier("exports")
                    ]))
                ]),
                ts.setEmitFlags(ts.createIf(ts.createStrictInequality(ts.createIdentifier("v"), ts.createIdentifier("undefined")), ts.createStatement(ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("module"), "exports"), ts.createIdentifier("v")))), 1)
            ]), ts.createIf(ts.createLogicalAnd(ts.createTypeCheck(ts.createIdentifier("define"), "function"), ts.createPropertyAccess(ts.createIdentifier("define"), "amd")), ts.createBlock([
                ts.createStatement(ts.createCall(ts.createIdentifier("define"), undefined, [
                    ts.createArrayLiteral([
                        ts.createLiteral("require"),
                        ts.createLiteral("exports")
                    ].concat(aliasedModuleNames, unaliasedModuleNames)),
                    ts.createIdentifier("factory")
                ]))
            ])))
        ], undefined, true));
        return ts.updateSourceFileNode(node, ts.createNodeArray([
            ts.createStatement(ts.createCall(umdHeader, undefined, [
                ts.createFunctionExpression(undefined, undefined, undefined, undefined, [
                    ts.createParameter(undefined, undefined, undefined, "require"),
                    ts.createParameter(undefined, undefined, undefined, "exports")
                ].concat(importAliasNames), undefined, transformAsynchronousModuleBody(node))
            ]))
        ], node.statements));
    }
    function collectAsynchronousDependencies(node, includeNonAmdDependencies) {
        var aliasedModuleNames = [];
        var unaliasedModuleNames = [];
        var importAliasNames = [];
        for (var _i = 0, _a = node.amdDependencies; _i < _a.length; _i++) {
            var amdDependency = _a[_i];
            if (amdDependency.name) {
                aliasedModuleNames.push(ts.createLiteral(amdDependency.path));
                importAliasNames.push(ts.createParameter(undefined, undefined, undefined, amdDependency.name));
            }
            else {
                unaliasedModuleNames.push(ts.createLiteral(amdDependency.path));
            }
        }
        for (var _b = 0, _c = currentModuleInfo.externalImports; _b < _c.length; _b++) {
            var importNode = _c[_b];
            var externalModuleName = ts.getExternalModuleNameLiteral(importNode, currentSourceFile, host, resolver, compilerOptions);
            var importAliasName = ts.getLocalNameForExternalImport(importNode, currentSourceFile);
            if (includeNonAmdDependencies && importAliasName) {
                ts.setEmitFlags(importAliasName, 4);
                aliasedModuleNames.push(externalModuleName);
                importAliasNames.push(ts.createParameter(undefined, undefined, undefined, importAliasName));
            }
            else {
                unaliasedModuleNames.push(externalModuleName);
            }
        }
        return { aliasedModuleNames: aliasedModuleNames, unaliasedModuleNames: unaliasedModuleNames, importAliasNames: importAliasNames };
    }
    function transformAsynchronousModuleBody(node) {
        startLexicalEnvironment();
        var statements = [];
        var statementOffset = ts.addPrologueDirectives(statements, node.statements, !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
        ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, true));
        ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
        ts.addRange(statements, endLexicalEnvironment());
        addExportEqualsIfNeeded(statements, true);
        var body = ts.createBlock(statements, undefined, true);
        if (currentModuleInfo.hasExportStarsToExportValues) {
            ts.addEmitHelper(body, exportStarHelper);
        }
        return body;
    }
    function addExportEqualsIfNeeded(statements, emitAsReturn) {
        if (currentModuleInfo.exportEquals) {
            if (emitAsReturn) {
                var statement = ts.createReturn(currentModuleInfo.exportEquals.expression, currentModuleInfo.exportEquals);
                ts.setEmitFlags(statement, 384 | 1536);
                statements.push(statement);
            }
            else {
                var statement = ts.createStatement(ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("module"), "exports"), currentModuleInfo.exportEquals.expression), currentModuleInfo.exportEquals);
                ts.setEmitFlags(statement, 1536);
                statements.push(statement);
            }
        }
    }
    function sourceElementVisitor(node) {
        switch (node.kind) {
            case 235:
                return visitImportDeclaration(node);
            case 234:
                return visitImportEqualsDeclaration(node);
            case 241:
                return visitExportDeclaration(node);
            case 240:
                return visitExportAssignment(node);
            case 205:
                return visitVariableStatement(node);
            case 225:
                return visitFunctionDeclaration(node);
            case 226:
                return visitClassDeclaration(node);
            case 295:
                return visitMergeDeclarationMarker(node);
            case 296:
                return visitEndOfDeclarationMarker(node);
            default:
                return node;
        }
    }
    function visitImportDeclaration(node) {
        var statements;
        var namespaceDeclaration = ts.getNamespaceDeclarationNode(node);
        if (moduleKind !== ts.ModuleKind.AMD) {
            if (!node.importClause) {
                return ts.createStatement(createRequireCall(node), node);
            }
            else {
                var variables = [];
                if (namespaceDeclaration && !ts.isDefaultImport(node)) {
                    variables.push(ts.createVariableDeclaration(ts.getSynthesizedClone(namespaceDeclaration.name), undefined, createRequireCall(node)));
                }
                else {
                    variables.push(ts.createVariableDeclaration(ts.getGeneratedNameForNode(node), undefined, createRequireCall(node)));
                    if (namespaceDeclaration && ts.isDefaultImport(node)) {
                        variables.push(ts.createVariableDeclaration(ts.getSynthesizedClone(namespaceDeclaration.name), undefined, ts.getGeneratedNameForNode(node)));
                    }
                }
                statements = ts.append(statements, ts.createVariableStatement(undefined, ts.createVariableDeclarationList(variables, undefined, languageVersion >= 2 ? 2 : 0), node));
            }
        }
        else if (namespaceDeclaration && ts.isDefaultImport(node)) {
            statements = ts.append(statements, ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
                ts.createVariableDeclaration(ts.getSynthesizedClone(namespaceDeclaration.name), undefined, ts.getGeneratedNameForNode(node), node)
            ], undefined, languageVersion >= 2 ? 2 : 0)));
        }
        if (hasAssociatedEndOfDeclarationMarker(node)) {
            var id = ts.getOriginalNodeId(node);
            deferredExports[id] = appendExportsOfImportDeclaration(deferredExports[id], node);
        }
        else {
            statements = appendExportsOfImportDeclaration(statements, node);
        }
        return ts.singleOrMany(statements);
    }
    function createRequireCall(importNode) {
        var moduleName = ts.getExternalModuleNameLiteral(importNode, currentSourceFile, host, resolver, compilerOptions);
        var args = [];
        if (moduleName) {
            args.push(moduleName);
        }
        return ts.createCall(ts.createIdentifier("require"), undefined, args);
    }
    function visitImportEqualsDeclaration(node) {
        ts.Debug.assert(ts.isExternalModuleImportEqualsDeclaration(node), "import= for internal module references should be handled in an earlier transformer.");
        var statements;
        if (moduleKind !== ts.ModuleKind.AMD) {
            if (ts.hasModifier(node, 1)) {
                statements = ts.append(statements, ts.createStatement(createExportExpression(node.name, createRequireCall(node)), node));
            }
            else {
                statements = ts.append(statements, ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
                    ts.createVariableDeclaration(ts.getSynthesizedClone(node.name), undefined, createRequireCall(node))
                ], undefined, languageVersion >= 2 ? 2 : 0), node));
            }
        }
        else {
            if (ts.hasModifier(node, 1)) {
                statements = ts.append(statements, ts.createStatement(createExportExpression(ts.getExportName(node), ts.getLocalName(node)), node));
            }
        }
        if (hasAssociatedEndOfDeclarationMarker(node)) {
            var id = ts.getOriginalNodeId(node);
            deferredExports[id] = appendExportsOfImportEqualsDeclaration(deferredExports[id], node);
        }
        else {
            statements = appendExportsOfImportEqualsDeclaration(statements, node);
        }
        return ts.singleOrMany(statements);
    }
    function visitExportDeclaration(node) {
        if (!node.moduleSpecifier) {
            return undefined;
        }
        var generatedName = ts.getGeneratedNameForNode(node);
        if (node.exportClause) {
            var statements = [];
            if (moduleKind !== ts.ModuleKind.AMD) {
                statements.push(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
                    ts.createVariableDeclaration(generatedName, undefined, createRequireCall(node))
                ]), node));
            }
            for (var _i = 0, _a = node.exportClause.elements; _i < _a.length; _i++) {
                var specifier = _a[_i];
                var exportedValue = ts.createPropertyAccess(generatedName, specifier.propertyName || specifier.name);
                statements.push(ts.createStatement(createExportExpression(ts.getExportName(specifier), exportedValue), specifier));
            }
            return ts.singleOrMany(statements);
        }
        else {
            return ts.createStatement(ts.createCall(ts.createIdentifier("__export"), undefined, [
                moduleKind !== ts.ModuleKind.AMD
                    ? createRequireCall(node)
                    : generatedName
            ]), node);
        }
    }
    function visitExportAssignment(node) {
        if (node.isExportEquals) {
            return undefined;
        }
        var statements;
        var original = node.original;
        if (original && hasAssociatedEndOfDeclarationMarker(original)) {
            var id = ts.getOriginalNodeId(node);
            deferredExports[id] = appendExportStatement(deferredExports[id], ts.createIdentifier("default"), node.expression, node, true);
        }
        else {
            statements = appendExportStatement(statements, ts.createIdentifier("default"), node.expression, node, true);
        }
        return ts.singleOrMany(statements);
    }
    function visitFunctionDeclaration(node) {
        var statements;
        if (ts.hasModifier(node, 1)) {
            statements = ts.append(statements, ts.setOriginalNode(ts.createFunctionDeclaration(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, ts.getDeclarationName(node, true, true), undefined, node.parameters, undefined, node.body, node), node));
        }
        else {
            statements = ts.append(statements, node);
        }
        if (hasAssociatedEndOfDeclarationMarker(node)) {
            var id = ts.getOriginalNodeId(node);
            deferredExports[id] = appendExportsOfHoistedDeclaration(deferredExports[id], node);
        }
        else {
            statements = appendExportsOfHoistedDeclaration(statements, node);
        }
        return ts.singleOrMany(statements);
    }
    function visitClassDeclaration(node) {
        var statements;
        if (ts.hasModifier(node, 1)) {
            statements = ts.append(statements, ts.setOriginalNode(ts.createClassDeclaration(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), ts.getDeclarationName(node, true, true), undefined, node.heritageClauses, node.members, node), node));
        }
        else {
            statements = ts.append(statements, node);
        }
        if (hasAssociatedEndOfDeclarationMarker(node)) {
            var id = ts.getOriginalNodeId(node);
            deferredExports[id] = appendExportsOfHoistedDeclaration(deferredExports[id], node);
        }
        else {
            statements = appendExportsOfHoistedDeclaration(statements, node);
        }
        return ts.singleOrMany(statements);
    }
    function visitVariableStatement(node) {
        var statements;
        var variables;
        var expressions;
        if (ts.hasModifier(node, 1)) {
            var modifiers = void 0;
            for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
                var variable = _a[_i];
                if (ts.isIdentifier(variable.name) && ts.isLocalName(variable.name)) {
                    if (!modifiers) {
                        modifiers = ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier);
                    }
                    variables = ts.append(variables, variable);
                }
                else if (variable.initializer) {
                    expressions = ts.append(expressions, transformInitializedVariable(variable));
                }
            }
            if (variables) {
                statements = ts.append(statements, ts.updateVariableStatement(node, modifiers, ts.updateVariableDeclarationList(node.declarationList, variables)));
            }
            if (expressions) {
                statements = ts.append(statements, ts.createStatement(ts.inlineExpressions(expressions), node));
            }
        }
        else {
            statements = ts.append(statements, node);
        }
        if (hasAssociatedEndOfDeclarationMarker(node)) {
            var id = ts.getOriginalNodeId(node);
            deferredExports[id] = appendExportsOfVariableStatement(deferredExports[id], node);
        }
        else {
            statements = appendExportsOfVariableStatement(statements, node);
        }
        return ts.singleOrMany(statements);
    }
    function transformInitializedVariable(node) {
        if (ts.isBindingPattern(node.name)) {
            return ts.flattenDestructuringAssignment(node, undefined, context, 0, false, createExportExpression);
        }
        else {
            return ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("exports"), node.name, node.name), node.initializer);
        }
    }
    function visitMergeDeclarationMarker(node) {
        if (hasAssociatedEndOfDeclarationMarker(node) && node.original.kind === 205) {
            var id = ts.getOriginalNodeId(node);
            deferredExports[id] = appendExportsOfVariableStatement(deferredExports[id], node.original);
        }
        return node;
    }
    function hasAssociatedEndOfDeclarationMarker(node) {
        return (ts.getEmitFlags(node) & 2097152) !== 0;
    }
    function visitEndOfDeclarationMarker(node) {
        var id = ts.getOriginalNodeId(node);
        var statements = deferredExports[id];
        if (statements) {
            delete deferredExports[id];
            return ts.append(statements, node);
        }
        return node;
    }
    function appendExportsOfImportDeclaration(statements, decl) {
        if (currentModuleInfo.exportEquals) {
            return statements;
        }
        var importClause = decl.importClause;
        if (!importClause) {
            return statements;
        }
        if (importClause.name) {
            statements = appendExportsOfDeclaration(statements, importClause);
        }
        var namedBindings = importClause.namedBindings;
        if (namedBindings) {
            switch (namedBindings.kind) {
                case 237:
                    statements = appendExportsOfDeclaration(statements, namedBindings);
                    break;
                case 238:
                    for (var _i = 0, _a = namedBindings.elements; _i < _a.length; _i++) {
                        var importBinding = _a[_i];
                        statements = appendExportsOfDeclaration(statements, importBinding);
                    }
                    break;
            }
        }
        return statements;
    }
    function appendExportsOfImportEqualsDeclaration(statements, decl) {
        if (currentModuleInfo.exportEquals) {
            return statements;
        }
        return appendExportsOfDeclaration(statements, decl);
    }
    function appendExportsOfVariableStatement(statements, node) {
        if (currentModuleInfo.exportEquals) {
            return statements;
        }
        for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
            var decl = _a[_i];
            statements = appendExportsOfBindingElement(statements, decl);
        }
        return statements;
    }
    function appendExportsOfBindingElement(statements, decl) {
        if (currentModuleInfo.exportEquals) {
            return statements;
        }
        if (ts.isBindingPattern(decl.name)) {
            for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
                var element = _a[_i];
                if (!ts.isOmittedExpression(element)) {
                    statements = appendExportsOfBindingElement(statements, element);
                }
            }
        }
        else if (!ts.isGeneratedIdentifier(decl.name)) {
            statements = appendExportsOfDeclaration(statements, decl);
        }
        return statements;
    }
    function appendExportsOfHoistedDeclaration(statements, decl) {
        if (currentModuleInfo.exportEquals) {
            return statements;
        }
        if (ts.hasModifier(decl, 1)) {
            var exportName = ts.hasModifier(decl, 512) ? ts.createIdentifier("default") : decl.name;
            statements = appendExportStatement(statements, exportName, ts.getLocalName(decl), decl);
        }
        if (decl.name) {
            statements = appendExportsOfDeclaration(statements, decl);
        }
        return statements;
    }
    function appendExportsOfDeclaration(statements, decl) {
        var name = ts.getDeclarationName(decl);
        var exportSpecifiers = currentModuleInfo.exportSpecifiers[name.text];
        if (exportSpecifiers) {
            for (var _i = 0, exportSpecifiers_2 = exportSpecifiers; _i < exportSpecifiers_2.length; _i++) {
                var exportSpecifier = exportSpecifiers_2[_i];
                statements = appendExportStatement(statements, exportSpecifier.name, name, exportSpecifier.name);
            }
        }
        return statements;
    }
    function appendExportStatement(statements, exportName, expression, location, allowComments) {
        if (exportName.text === "default") {
            var sourceFile = ts.getOriginalNode(currentSourceFile, ts.isSourceFile);
            if (sourceFile && !sourceFile.symbol.exports["___esModule"]) {
                if (languageVersion === 0) {
                    statements = ts.append(statements, ts.createStatement(createExportExpression(ts.createIdentifier("__esModule"), ts.createLiteral(true))));
                }
                else {
                    statements = ts.append(statements, ts.createStatement(ts.createCall(ts.createPropertyAccess(ts.createIdentifier("Object"), "defineProperty"), undefined, [
                        ts.createIdentifier("exports"),
                        ts.createLiteral("__esModule"),
                        ts.createObjectLiteral([
                            ts.createPropertyAssignment("value", ts.createLiteral(true))
                        ])
                    ])));
                }
            }
        }
        statements = ts.append(statements, createExportStatement(exportName, expression, location, allowComments));
        return statements;
    }
    function createExportStatement(name, value, location, allowComments) {
        var statement = ts.createStatement(createExportExpression(name, value), location);
        ts.startOnNewLine(statement);
        if (!allowComments) {
            ts.setEmitFlags(statement, 1536);
        }
        return statement;
    }
    function createExportExpression(name, value, location) {
        return ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("exports"), ts.getSynthesizedClone(name)), value, location);
    }
    function modifierVisitor(node) {
        switch (node.kind) {
            case 83:
            case 78:
                return undefined;
        }
        return node;
    }
    function onEmitNode(emitContext, node, emitCallback) {
        if (node.kind === 261) {
            currentSourceFile = node;
            currentModuleInfo = moduleInfoMap[ts.getOriginalNodeId(currentSourceFile)];
            noSubstitution = ts.createMap();
            previousOnEmitNode(emitContext, node, emitCallback);
            currentSourceFile = undefined;
            currentModuleInfo = undefined;
            noSubstitution = undefined;
        }
        else {
            previousOnEmitNode(emitContext, node, emitCallback);
        }
    }
    function onSubstituteNode(emitContext, node) {
        node = previousOnSubstituteNode(emitContext, node);
        if (node.id && noSubstitution[node.id]) {
            return node;
        }
        if (emitContext === 1) {
            return substituteExpression(node);
        }
        else if (ts.isShorthandPropertyAssignment(node)) {
            return substituteShorthandPropertyAssignment(node);
        }
        return node;
    }
    function substituteShorthandPropertyAssignment(node) {
        var name = node.name;
        var exportedOrImportedName = substituteExpressionIdentifier(name);
        if (exportedOrImportedName !== name) {
            if (node.objectAssignmentInitializer) {
                var initializer = ts.createAssignment(exportedOrImportedName, node.objectAssignmentInitializer);
                return ts.createPropertyAssignment(name, initializer, node);
            }
            return ts.createPropertyAssignment(name, exportedOrImportedName, node);
        }
        return node;
    }
    function substituteExpression(node) {
        switch (node.kind) {
            case 70:
                return substituteExpressionIdentifier(node);
            case 192:
                return substituteBinaryExpression(node);
            case 191:
            case 190:
                return substituteUnaryExpression(node);
        }
        return node;
    }
    function substituteExpressionIdentifier(node) {
        if (ts.getEmitFlags(node) & 4096) {
            var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
            if (externalHelpersModuleName) {
                return ts.createPropertyAccess(externalHelpersModuleName, node);
            }
            return node;
        }
        if (!ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
            var exportContainer = resolver.getReferencedExportContainer(node, ts.isExportName(node));
            if (exportContainer && exportContainer.kind === 261) {
                return ts.createPropertyAccess(ts.createIdentifier("exports"), ts.getSynthesizedClone(node), node);
            }
            var importDeclaration = resolver.getReferencedImportDeclaration(node);
            if (importDeclaration) {
                if (ts.isImportClause(importDeclaration)) {
                    return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent), ts.createIdentifier("default"), node);
                }
                else if (ts.isImportSpecifier(importDeclaration)) {
                    var name_39 = importDeclaration.propertyName || importDeclaration.name;
                    return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(name_39), node);
                }
            }
        }
        return node;
    }
    function substituteBinaryExpression(node) {
        if (ts.isAssignmentOperator(node.operatorToken.kind)
            && ts.isIdentifier(node.left)
            && !ts.isGeneratedIdentifier(node.left)
            && !ts.isLocalName(node.left)
            && !ts.isDeclarationNameOfEnumOrNamespace(node.left)) {
            var exportedNames = getExports(node.left);
            if (exportedNames) {
                var expression = node;
                for (var _i = 0, exportedNames_3 = exportedNames; _i < exportedNames_3.length; _i++) {
                    var exportName = exportedNames_3[_i];
                    noSubstitution[ts.getNodeId(expression)] = true;
                    expression = createExportExpression(exportName, expression, node);
                }
                return expression;
            }
        }
        return node;
    }
    function substituteUnaryExpression(node) {
        if ((node.operator === 42 || node.operator === 43)
            && ts.isIdentifier(node.operand)
            && !ts.isGeneratedIdentifier(node.operand)
            && !ts.isLocalName(node.operand)
            && !ts.isDeclarationNameOfEnumOrNamespace(node.operand)) {
            var exportedNames = getExports(node.operand);
            if (exportedNames) {
                var expression = node.kind === 191
                    ? ts.createBinary(node.operand, ts.createToken(node.operator === 42 ? 58 : 59), ts.createLiteral(1), node)
                    : node;
                for (var _i = 0, exportedNames_4 = exportedNames; _i < exportedNames_4.length; _i++) {
                    var exportName = exportedNames_4[_i];
                    noSubstitution[ts.getNodeId(expression)] = true;
                    expression = createExportExpression(exportName, expression);
                }
                return expression;
            }
        }
        return node;
    }
    function getExports(name) {
        if (!ts.isGeneratedIdentifier(name)) {
            var valueDeclaration = resolver.getReferencedImportDeclaration(name)
                || resolver.getReferencedValueDeclaration(name);
            if (valueDeclaration) {
                return currentModuleInfo
                    && currentModuleInfo.exportedBindings[ts.getOriginalNodeId(valueDeclaration)];
            }
        }
    }
    var _a;
}
ts.transformModule = transformModule;
var exportStarHelper = {
    name: "typescript:export-star",
    scoped: true,
    text: "\n            function __export(m) {\n                for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\n            }"
};

})(ts || (ts = {})); var ts; (function (ts) {

var moduleTransformerMap = ts.createMap((_a = {},
    _a[ts.ModuleKind.ES2015] = ts.transformES2015Module,
    _a[ts.ModuleKind.System] = ts.transformSystemModule,
    _a[ts.ModuleKind.AMD] = ts.transformModule,
    _a[ts.ModuleKind.CommonJS] = ts.transformModule,
    _a[ts.ModuleKind.UMD] = ts.transformModule,
    _a[ts.ModuleKind.None] = ts.transformModule,
    _a));
function getTransformers(compilerOptions) {
    var jsx = compilerOptions.jsx;
    var languageVersion = ts.getEmitScriptTarget(compilerOptions);
    var moduleKind = ts.getEmitModuleKind(compilerOptions);
    var transformers = [];
    transformers.push(ts.transformTypeScript);
    if (jsx === 2) {
        transformers.push(ts.transformJsx);
    }
    if (languageVersion < 5) {
        transformers.push(ts.transformESNext);
    }
    if (languageVersion < 4) {
        transformers.push(ts.transformES2017);
    }
    if (languageVersion < 3) {
        transformers.push(ts.transformES2016);
    }
    if (languageVersion < 2) {
        transformers.push(ts.transformES2015);
        transformers.push(ts.transformGenerators);
    }
    transformers.push(moduleTransformerMap[moduleKind] || moduleTransformerMap[ts.ModuleKind.None]);
    if (languageVersion < 1) {
        transformers.push(ts.transformES5);
    }
    return transformers;
}
ts.getTransformers = getTransformers;
function transformFiles(resolver, host, sourceFiles, transformers) {
    var enabledSyntaxKindFeatures = new Array(297);
    var lexicalEnvironmentDisabled = false;
    var lexicalEnvironmentVariableDeclarations;
    var lexicalEnvironmentFunctionDeclarations;
    var lexicalEnvironmentVariableDeclarationsStack = [];
    var lexicalEnvironmentFunctionDeclarationsStack = [];
    var lexicalEnvironmentStackOffset = 0;
    var lexicalEnvironmentSuspended = false;
    var emitHelpers;
    var context = {
        getCompilerOptions: function () { return host.getCompilerOptions(); },
        getEmitResolver: function () { return resolver; },
        getEmitHost: function () { return host; },
        startLexicalEnvironment: startLexicalEnvironment,
        suspendLexicalEnvironment: suspendLexicalEnvironment,
        resumeLexicalEnvironment: resumeLexicalEnvironment,
        endLexicalEnvironment: endLexicalEnvironment,
        hoistVariableDeclaration: hoistVariableDeclaration,
        hoistFunctionDeclaration: hoistFunctionDeclaration,
        requestEmitHelper: requestEmitHelper,
        readEmitHelpers: readEmitHelpers,
        onSubstituteNode: function (_emitContext, node) { return node; },
        enableSubstitution: enableSubstitution,
        isSubstitutionEnabled: isSubstitutionEnabled,
        onEmitNode: function (node, emitContext, emitCallback) { return emitCallback(node, emitContext); },
        enableEmitNotification: enableEmitNotification,
        isEmitNotificationEnabled: isEmitNotificationEnabled
    };
    var transformation = ts.chain.apply(void 0, transformers)(context);
    var transformed = ts.map(sourceFiles, transformSourceFile);
    lexicalEnvironmentDisabled = true;
    return {
        transformed: transformed,
        emitNodeWithSubstitution: emitNodeWithSubstitution,
        emitNodeWithNotification: emitNodeWithNotification
    };
    function transformSourceFile(sourceFile) {
        if (ts.isDeclarationFile(sourceFile)) {
            return sourceFile;
        }
        return transformation(sourceFile);
    }
    function enableSubstitution(kind) {
        enabledSyntaxKindFeatures[kind] |= 1;
    }
    function isSubstitutionEnabled(node) {
        return (enabledSyntaxKindFeatures[node.kind] & 1) !== 0
            && (ts.getEmitFlags(node) & 4) === 0;
    }
    function emitNodeWithSubstitution(emitContext, node, emitCallback) {
        if (node) {
            if (isSubstitutionEnabled(node)) {
                var substitute = context.onSubstituteNode(emitContext, node);
                if (substitute && substitute !== node) {
                    emitCallback(emitContext, substitute);
                    return;
                }
            }
            emitCallback(emitContext, node);
        }
    }
    function enableEmitNotification(kind) {
        enabledSyntaxKindFeatures[kind] |= 2;
    }
    function isEmitNotificationEnabled(node) {
        return (enabledSyntaxKindFeatures[node.kind] & 2) !== 0
            || (ts.getEmitFlags(node) & 2) !== 0;
    }
    function emitNodeWithNotification(emitContext, node, emitCallback) {
        if (node) {
            if (isEmitNotificationEnabled(node)) {
                context.onEmitNode(emitContext, node, emitCallback);
            }
            else {
                emitCallback(emitContext, node);
            }
        }
    }
    function hoistVariableDeclaration(name) {
        ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
        var decl = ts.createVariableDeclaration(name);
        if (!lexicalEnvironmentVariableDeclarations) {
            lexicalEnvironmentVariableDeclarations = [decl];
        }
        else {
            lexicalEnvironmentVariableDeclarations.push(decl);
        }
    }
    function hoistFunctionDeclaration(func) {
        ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
        if (!lexicalEnvironmentFunctionDeclarations) {
            lexicalEnvironmentFunctionDeclarations = [func];
        }
        else {
            lexicalEnvironmentFunctionDeclarations.push(func);
        }
    }
    function startLexicalEnvironment() {
        ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot start a lexical environment during the print phase.");
        ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
        lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentVariableDeclarations;
        lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentFunctionDeclarations;
        lexicalEnvironmentStackOffset++;
        lexicalEnvironmentVariableDeclarations = undefined;
        lexicalEnvironmentFunctionDeclarations = undefined;
    }
    function suspendLexicalEnvironment() {
        ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot suspend a lexical environment during the print phase.");
        ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is already suspended.");
        lexicalEnvironmentSuspended = true;
    }
    function resumeLexicalEnvironment() {
        ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot resume a lexical environment during the print phase.");
        ts.Debug.assert(lexicalEnvironmentSuspended, "Lexical environment is not suspended.");
        lexicalEnvironmentSuspended = false;
    }
    function endLexicalEnvironment() {
        ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot end a lexical environment during the print phase.");
        ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
        var statements;
        if (lexicalEnvironmentVariableDeclarations || lexicalEnvironmentFunctionDeclarations) {
            if (lexicalEnvironmentFunctionDeclarations) {
                statements = lexicalEnvironmentFunctionDeclarations.slice();
            }
            if (lexicalEnvironmentVariableDeclarations) {
                var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList(lexicalEnvironmentVariableDeclarations));
                if (!statements) {
                    statements = [statement];
                }
                else {
                    statements.push(statement);
                }
            }
        }
        lexicalEnvironmentStackOffset--;
        lexicalEnvironmentVariableDeclarations = lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset];
        lexicalEnvironmentFunctionDeclarations = lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset];
        if (lexicalEnvironmentStackOffset === 0) {
            lexicalEnvironmentVariableDeclarationsStack = [];
            lexicalEnvironmentFunctionDeclarationsStack = [];
        }
        return statements;
    }
    function requestEmitHelper(helper) {
        ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
        ts.Debug.assert(!helper.scoped, "Cannot request a scoped emit helper.");
        emitHelpers = ts.append(emitHelpers, helper);
    }
    function readEmitHelpers() {
        ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
        var helpers = emitHelpers;
        emitHelpers = undefined;
        return helpers;
    }
}
ts.transformFiles = transformFiles;
var _a;

})(ts || (ts = {})); var ts; (function (ts) {

var defaultLastEncodedSourceMapSpan = {
    emittedLine: 1,
    emittedColumn: 1,
    sourceLine: 1,
    sourceColumn: 1,
    sourceIndex: 0
};
function createSourceMapWriter(host, writer) {
    var compilerOptions = host.getCompilerOptions();
    var extendedDiagnostics = compilerOptions.extendedDiagnostics;
    var currentSourceFile;
    var currentSourceText;
    var sourceMapDir;
    var sourceMapSourceIndex;
    var lastRecordedSourceMapSpan;
    var lastEncodedSourceMapSpan;
    var lastEncodedNameIndex;
    var sourceMapData;
    var disabled = !(compilerOptions.sourceMap || compilerOptions.inlineSourceMap);
    return {
        initialize: initialize,
        reset: reset,
        getSourceMapData: function () { return sourceMapData; },
        setSourceFile: setSourceFile,
        emitPos: emitPos,
        emitNodeWithSourceMap: emitNodeWithSourceMap,
        emitTokenWithSourceMap: emitTokenWithSourceMap,
        getText: getText,
        getSourceMappingURL: getSourceMappingURL,
    };
    function initialize(filePath, sourceMapFilePath, sourceFiles, isBundledEmit) {
        if (disabled) {
            return;
        }
        if (sourceMapData) {
            reset();
        }
        currentSourceFile = undefined;
        currentSourceText = undefined;
        sourceMapSourceIndex = -1;
        lastRecordedSourceMapSpan = undefined;
        lastEncodedSourceMapSpan = defaultLastEncodedSourceMapSpan;
        lastEncodedNameIndex = 0;
        sourceMapData = {
            sourceMapFilePath: sourceMapFilePath,
            jsSourceMappingURL: !compilerOptions.inlineSourceMap ? ts.getBaseFileName(ts.normalizeSlashes(sourceMapFilePath)) : undefined,
            sourceMapFile: ts.getBaseFileName(ts.normalizeSlashes(filePath)),
            sourceMapSourceRoot: compilerOptions.sourceRoot || "",
            sourceMapSources: [],
            inputSourceFileNames: [],
            sourceMapNames: [],
            sourceMapMappings: "",
            sourceMapSourcesContent: compilerOptions.inlineSources ? [] : undefined,
            sourceMapDecodedMappings: []
        };
        sourceMapData.sourceMapSourceRoot = ts.normalizeSlashes(sourceMapData.sourceMapSourceRoot);
        if (sourceMapData.sourceMapSourceRoot.length && sourceMapData.sourceMapSourceRoot.charCodeAt(sourceMapData.sourceMapSourceRoot.length - 1) !== 47) {
            sourceMapData.sourceMapSourceRoot += ts.directorySeparator;
        }
        if (compilerOptions.mapRoot) {
            sourceMapDir = ts.normalizeSlashes(compilerOptions.mapRoot);
            if (!isBundledEmit) {
                ts.Debug.assert(sourceFiles.length === 1);
                sourceMapDir = ts.getDirectoryPath(ts.getSourceFilePathInNewDir(sourceFiles[0], host, sourceMapDir));
            }
            if (!ts.isRootedDiskPath(sourceMapDir) && !ts.isUrl(sourceMapDir)) {
                sourceMapDir = ts.combinePaths(host.getCommonSourceDirectory(), sourceMapDir);
                sourceMapData.jsSourceMappingURL = ts.getRelativePathToDirectoryOrUrl(ts.getDirectoryPath(ts.normalizePath(filePath)), ts.combinePaths(sourceMapDir, sourceMapData.jsSourceMappingURL), host.getCurrentDirectory(), host.getCanonicalFileName, true);
            }
            else {
                sourceMapData.jsSourceMappingURL = ts.combinePaths(sourceMapDir, sourceMapData.jsSourceMappingURL);
            }
        }
        else {
            sourceMapDir = ts.getDirectoryPath(ts.normalizePath(filePath));
        }
    }
    function reset() {
        if (disabled) {
            return;
        }
        currentSourceFile = undefined;
        sourceMapDir = undefined;
        sourceMapSourceIndex = undefined;
        lastRecordedSourceMapSpan = undefined;
        lastEncodedSourceMapSpan = undefined;
        lastEncodedNameIndex = undefined;
        sourceMapData = undefined;
    }
    function encodeLastRecordedSourceMapSpan() {
        if (!lastRecordedSourceMapSpan || lastRecordedSourceMapSpan === lastEncodedSourceMapSpan) {
            return;
        }
        var prevEncodedEmittedColumn = lastEncodedSourceMapSpan.emittedColumn;
        if (lastEncodedSourceMapSpan.emittedLine === lastRecordedSourceMapSpan.emittedLine) {
            if (sourceMapData.sourceMapMappings) {
                sourceMapData.sourceMapMappings += ",";
            }
        }
        else {
            for (var encodedLine = lastEncodedSourceMapSpan.emittedLine; encodedLine < lastRecordedSourceMapSpan.emittedLine; encodedLine++) {
                sourceMapData.sourceMapMappings += ";";
            }
            prevEncodedEmittedColumn = 1;
        }
        sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.emittedColumn - prevEncodedEmittedColumn);
        sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.sourceIndex - lastEncodedSourceMapSpan.sourceIndex);
        sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.sourceLine - lastEncodedSourceMapSpan.sourceLine);
        sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.sourceColumn - lastEncodedSourceMapSpan.sourceColumn);
        if (lastRecordedSourceMapSpan.nameIndex >= 0) {
            ts.Debug.assert(false, "We do not support name index right now, Make sure to update updateLastEncodedAndRecordedSpans when we start using this");
            sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.nameIndex - lastEncodedNameIndex);
            lastEncodedNameIndex = lastRecordedSourceMapSpan.nameIndex;
        }
        lastEncodedSourceMapSpan = lastRecordedSourceMapSpan;
        sourceMapData.sourceMapDecodedMappings.push(lastEncodedSourceMapSpan);
    }
    function emitPos(pos) {
        if (disabled || ts.positionIsSynthesized(pos)) {
            return;
        }
        if (extendedDiagnostics) {
            ts.performance.mark("beforeSourcemap");
        }
        var sourceLinePos = ts.getLineAndCharacterOfPosition(currentSourceFile, pos);
        sourceLinePos.line++;
        sourceLinePos.character++;
        var emittedLine = writer.getLine();
        var emittedColumn = writer.getColumn();
        if (!lastRecordedSourceMapSpan ||
            lastRecordedSourceMapSpan.emittedLine !== emittedLine ||
            lastRecordedSourceMapSpan.emittedColumn !== emittedColumn ||
            (lastRecordedSourceMapSpan.sourceIndex === sourceMapSourceIndex &&
                (lastRecordedSourceMapSpan.sourceLine > sourceLinePos.line ||
                    (lastRecordedSourceMapSpan.sourceLine === sourceLinePos.line && lastRecordedSourceMapSpan.sourceColumn > sourceLinePos.character)))) {
            encodeLastRecordedSourceMapSpan();
            lastRecordedSourceMapSpan = {
                emittedLine: emittedLine,
                emittedColumn: emittedColumn,
                sourceLine: sourceLinePos.line,
                sourceColumn: sourceLinePos.character,
                sourceIndex: sourceMapSourceIndex
            };
        }
        else {
            lastRecordedSourceMapSpan.sourceLine = sourceLinePos.line;
            lastRecordedSourceMapSpan.sourceColumn = sourceLinePos.character;
            lastRecordedSourceMapSpan.sourceIndex = sourceMapSourceIndex;
        }
        if (extendedDiagnostics) {
            ts.performance.mark("afterSourcemap");
            ts.performance.measure("Source Map", "beforeSourcemap", "afterSourcemap");
        }
    }
    function emitNodeWithSourceMap(emitContext, node, emitCallback) {
        if (disabled) {
            return emitCallback(emitContext, node);
        }
        if (node) {
            var emitNode = node.emitNode;
            var emitFlags = emitNode && emitNode.flags;
            var _a = emitNode && emitNode.sourceMapRange || node, pos = _a.pos, end = _a.end;
            if (node.kind !== 293
                && (emitFlags & 16) === 0
                && pos >= 0) {
                emitPos(ts.skipTrivia(currentSourceText, pos));
            }
            if (emitFlags & 64) {
                disabled = true;
                emitCallback(emitContext, node);
                disabled = false;
            }
            else {
                emitCallback(emitContext, node);
            }
            if (node.kind !== 293
                && (emitFlags & 32) === 0
                && end >= 0) {
                emitPos(end);
            }
        }
    }
    function emitTokenWithSourceMap(node, token, tokenPos, emitCallback) {
        if (disabled) {
            return emitCallback(token, tokenPos);
        }
        var emitNode = node && node.emitNode;
        var emitFlags = emitNode && emitNode.flags;
        var range = emitNode && emitNode.tokenSourceMapRanges && emitNode.tokenSourceMapRanges[token];
        tokenPos = ts.skipTrivia(currentSourceText, range ? range.pos : tokenPos);
        if ((emitFlags & 128) === 0 && tokenPos >= 0) {
            emitPos(tokenPos);
        }
        tokenPos = emitCallback(token, tokenPos);
        if (range)
            tokenPos = range.end;
        if ((emitFlags & 256) === 0 && tokenPos >= 0) {
            emitPos(tokenPos);
        }
        return tokenPos;
    }
    function setSourceFile(sourceFile) {
        if (disabled) {
            return;
        }
        currentSourceFile = sourceFile;
        currentSourceText = currentSourceFile.text;
        var sourcesDirectoryPath = compilerOptions.sourceRoot ? host.getCommonSourceDirectory() : sourceMapDir;
        var source = ts.getRelativePathToDirectoryOrUrl(sourcesDirectoryPath, currentSourceFile.fileName, host.getCurrentDirectory(), host.getCanonicalFileName, true);
        sourceMapSourceIndex = ts.indexOf(sourceMapData.sourceMapSources, source);
        if (sourceMapSourceIndex === -1) {
            sourceMapSourceIndex = sourceMapData.sourceMapSources.length;
            sourceMapData.sourceMapSources.push(source);
            sourceMapData.inputSourceFileNames.push(currentSourceFile.fileName);
            if (compilerOptions.inlineSources) {
                sourceMapData.sourceMapSourcesContent.push(currentSourceFile.text);
            }
        }
    }
    function getText() {
        if (disabled) {
            return;
        }
        encodeLastRecordedSourceMapSpan();
        return JSON.stringify({
            version: 3,
            file: sourceMapData.sourceMapFile,
            sourceRoot: sourceMapData.sourceMapSourceRoot,
            sources: sourceMapData.sourceMapSources,
            names: sourceMapData.sourceMapNames,
            mappings: sourceMapData.sourceMapMappings,
            sourcesContent: sourceMapData.sourceMapSourcesContent,
        });
    }
    function getSourceMappingURL() {
        if (disabled) {
            return;
        }
        if (compilerOptions.inlineSourceMap) {
            var base64SourceMapText = ts.convertToBase64(getText());
            return sourceMapData.jsSourceMappingURL = "data:application/json;base64," + base64SourceMapText;
        }
        else {
            return sourceMapData.jsSourceMappingURL;
        }
    }
}
ts.createSourceMapWriter = createSourceMapWriter;
var base64Chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
function base64FormatEncode(inValue) {
    if (inValue < 64) {
        return base64Chars.charAt(inValue);
    }
    throw TypeError(inValue + ": not a 64 based value");
}
function base64VLQFormatEncode(inValue) {
    if (inValue < 0) {
        inValue = ((-inValue) << 1) + 1;
    }
    else {
        inValue = inValue << 1;
    }
    var encodedStr = "";
    do {
        var currentDigit = inValue & 31;
        inValue = inValue >> 5;
        if (inValue > 0) {
            currentDigit = currentDigit | 32;
        }
        encodedStr = encodedStr + base64FormatEncode(currentDigit);
    } while (inValue > 0);
    return encodedStr;
}

})(ts || (ts = {})); var ts; (function (ts) {

function createCommentWriter(host, writer, sourceMap) {
    var compilerOptions = host.getCompilerOptions();
    var extendedDiagnostics = compilerOptions.extendedDiagnostics;
    var newLine = host.getNewLine();
    var emitPos = sourceMap.emitPos;
    var containerPos = -1;
    var containerEnd = -1;
    var declarationListContainerEnd = -1;
    var currentSourceFile;
    var currentText;
    var currentLineMap;
    var detachedCommentsInfo;
    var hasWrittenComment = false;
    var disabled = compilerOptions.removeComments;
    return {
        reset: reset,
        setSourceFile: setSourceFile,
        emitNodeWithComments: emitNodeWithComments,
        emitBodyWithDetachedComments: emitBodyWithDetachedComments,
        emitTrailingCommentsOfPosition: emitTrailingCommentsOfPosition,
    };
    function emitNodeWithComments(emitContext, node, emitCallback) {
        if (disabled) {
            emitCallback(emitContext, node);
            return;
        }
        if (node) {
            var _a = ts.getCommentRange(node), pos = _a.pos, end = _a.end;
            var emitFlags = ts.getEmitFlags(node);
            if ((pos < 0 && end < 0) || (pos === end)) {
                if (emitFlags & 2048) {
                    disabled = true;
                    emitCallback(emitContext, node);
                    disabled = false;
                }
                else {
                    emitCallback(emitContext, node);
                }
            }
            else {
                if (extendedDiagnostics) {
                    ts.performance.mark("preEmitNodeWithComment");
                }
                var isEmittedNode = node.kind !== 293;
                var skipLeadingComments = pos < 0 || (emitFlags & 512) !== 0;
                var skipTrailingComments = end < 0 || (emitFlags & 1024) !== 0;
                if (!skipLeadingComments) {
                    emitLeadingComments(pos, isEmittedNode);
                }
                var savedContainerPos = containerPos;
                var savedContainerEnd = containerEnd;
                var savedDeclarationListContainerEnd = declarationListContainerEnd;
                if (!skipLeadingComments) {
                    containerPos = pos;
                }
                if (!skipTrailingComments) {
                    containerEnd = end;
                    if (node.kind === 224) {
                        declarationListContainerEnd = end;
                    }
                }
                if (extendedDiagnostics) {
                    ts.performance.measure("commentTime", "preEmitNodeWithComment");
                }
                if (emitFlags & 2048) {
                    disabled = true;
                    emitCallback(emitContext, node);
                    disabled = false;
                }
                else {
                    emitCallback(emitContext, node);
                }
                if (extendedDiagnostics) {
                    ts.performance.mark("beginEmitNodeWithComment");
                }
                containerPos = savedContainerPos;
                containerEnd = savedContainerEnd;
                declarationListContainerEnd = savedDeclarationListContainerEnd;
                if (!skipTrailingComments && isEmittedNode) {
                    emitTrailingComments(end);
                }
                if (extendedDiagnostics) {
                    ts.performance.measure("commentTime", "beginEmitNodeWithComment");
                }
            }
        }
    }
    function emitBodyWithDetachedComments(node, detachedRange, emitCallback) {
        if (extendedDiagnostics) {
            ts.performance.mark("preEmitBodyWithDetachedComments");
        }
        var pos = detachedRange.pos, end = detachedRange.end;
        var emitFlags = ts.getEmitFlags(node);
        var skipLeadingComments = pos < 0 || (emitFlags & 512) !== 0;
        var skipTrailingComments = disabled || end < 0 || (emitFlags & 1024) !== 0;
        if (!skipLeadingComments) {
            emitDetachedCommentsAndUpdateCommentsInfo(detachedRange);
        }
        if (extendedDiagnostics) {
            ts.performance.measure("commentTime", "preEmitBodyWithDetachedComments");
        }
        if (emitFlags & 2048 && !disabled) {
            disabled = true;
            emitCallback(node);
            disabled = false;
        }
        else {
            emitCallback(node);
        }
        if (extendedDiagnostics) {
            ts.performance.mark("beginEmitBodyWithDetachedCommetns");
        }
        if (!skipTrailingComments) {
            emitLeadingComments(detachedRange.end, true);
            if (hasWrittenComment && !writer.isAtStartOfLine()) {
                writer.writeLine();
            }
        }
        if (extendedDiagnostics) {
            ts.performance.measure("commentTime", "beginEmitBodyWithDetachedCommetns");
        }
    }
    function emitLeadingComments(pos, isEmittedNode) {
        hasWrittenComment = false;
        if (isEmittedNode) {
            forEachLeadingCommentToEmit(pos, emitLeadingComment);
        }
        else if (pos === 0) {
            forEachLeadingCommentToEmit(pos, emitTripleSlashLeadingComment);
        }
    }
    function emitTripleSlashLeadingComment(commentPos, commentEnd, kind, hasTrailingNewLine, rangePos) {
        if (isTripleSlashComment(commentPos, commentEnd)) {
            emitLeadingComment(commentPos, commentEnd, kind, hasTrailingNewLine, rangePos);
        }
    }
    function emitLeadingComment(commentPos, commentEnd, _kind, hasTrailingNewLine, rangePos) {
        if (!hasWrittenComment) {
            ts.emitNewLineBeforeLeadingCommentOfPosition(currentLineMap, writer, rangePos, commentPos);
            hasWrittenComment = true;
        }
        emitPos(commentPos);
        ts.writeCommentRange(currentText, currentLineMap, writer, commentPos, commentEnd, newLine);
        emitPos(commentEnd);
        if (hasTrailingNewLine) {
            writer.writeLine();
        }
        else {
            writer.write(" ");
        }
    }
    function emitTrailingComments(pos) {
        forEachTrailingCommentToEmit(pos, emitTrailingComment);
    }
    function emitTrailingComment(commentPos, commentEnd, _kind, hasTrailingNewLine) {
        if (!writer.isAtStartOfLine()) {
            writer.write(" ");
        }
        emitPos(commentPos);
        ts.writeCommentRange(currentText, currentLineMap, writer, commentPos, commentEnd, newLine);
        emitPos(commentEnd);
        if (hasTrailingNewLine) {
            writer.writeLine();
        }
    }
    function emitTrailingCommentsOfPosition(pos) {
        if (disabled) {
            return;
        }
        if (extendedDiagnostics) {
            ts.performance.mark("beforeEmitTrailingCommentsOfPosition");
        }
        forEachTrailingCommentToEmit(pos, emitTrailingCommentOfPosition);
        if (extendedDiagnostics) {
            ts.performance.measure("commentTime", "beforeEmitTrailingCommentsOfPosition");
        }
    }
    function emitTrailingCommentOfPosition(commentPos, commentEnd, _kind, hasTrailingNewLine) {
        emitPos(commentPos);
        ts.writeCommentRange(currentText, currentLineMap, writer, commentPos, commentEnd, newLine);
        emitPos(commentEnd);
        if (hasTrailingNewLine) {
            writer.writeLine();
        }
        else {
            writer.write(" ");
        }
    }
    function forEachLeadingCommentToEmit(pos, cb) {
        if (containerPos === -1 || pos !== containerPos) {
            if (hasDetachedComments(pos)) {
                forEachLeadingCommentWithoutDetachedComments(cb);
            }
            else {
                ts.forEachLeadingCommentRange(currentText, pos, cb, pos);
            }
        }
    }
    function forEachTrailingCommentToEmit(end, cb) {
        if (containerEnd === -1 || (end !== containerEnd && end !== declarationListContainerEnd)) {
            ts.forEachTrailingCommentRange(currentText, end, cb);
        }
    }
    function reset() {
        currentSourceFile = undefined;
        currentText = undefined;
        currentLineMap = undefined;
        detachedCommentsInfo = undefined;
    }
    function setSourceFile(sourceFile) {
        currentSourceFile = sourceFile;
        currentText = currentSourceFile.text;
        currentLineMap = ts.getLineStarts(currentSourceFile);
        detachedCommentsInfo = undefined;
    }
    function hasDetachedComments(pos) {
        return detachedCommentsInfo !== undefined && ts.lastOrUndefined(detachedCommentsInfo).nodePos === pos;
    }
    function forEachLeadingCommentWithoutDetachedComments(cb) {
        var pos = ts.lastOrUndefined(detachedCommentsInfo).detachedCommentEndPos;
        if (detachedCommentsInfo.length - 1) {
            detachedCommentsInfo.pop();
        }
        else {
            detachedCommentsInfo = undefined;
        }
        ts.forEachLeadingCommentRange(currentText, pos, cb, pos);
    }
    function emitDetachedCommentsAndUpdateCommentsInfo(range) {
        var currentDetachedCommentInfo = ts.emitDetachedComments(currentText, currentLineMap, writer, writeComment, range, newLine, disabled);
        if (currentDetachedCommentInfo) {
            if (detachedCommentsInfo) {
                detachedCommentsInfo.push(currentDetachedCommentInfo);
            }
            else {
                detachedCommentsInfo = [currentDetachedCommentInfo];
            }
        }
    }
    function writeComment(text, lineMap, writer, commentPos, commentEnd, newLine) {
        emitPos(commentPos);
        ts.writeCommentRange(text, lineMap, writer, commentPos, commentEnd, newLine);
        emitPos(commentEnd);
    }
    function isTripleSlashComment(commentPos, commentEnd) {
        if (currentText.charCodeAt(commentPos + 1) === 47 &&
            commentPos + 2 < commentEnd &&
            currentText.charCodeAt(commentPos + 2) === 47) {
            var textSubStr = currentText.substring(commentPos, commentEnd);
            return textSubStr.match(ts.fullTripleSlashReferencePathRegEx) ||
                textSubStr.match(ts.fullTripleSlashAMDReferencePathRegEx) ?
                true : false;
        }
        return false;
    }
}
ts.createCommentWriter = createCommentWriter;

})(ts || (ts = {})); var ts; (function (ts) {

function getDeclarationDiagnostics(host, resolver, targetSourceFile) {
    var declarationDiagnostics = ts.createDiagnosticCollection();
    ts.forEachExpectedEmitFile(host, getDeclarationDiagnosticsFromFile, targetSourceFile);
    return declarationDiagnostics.getDiagnostics(targetSourceFile ? targetSourceFile.fileName : undefined);
    function getDeclarationDiagnosticsFromFile(_a, sources, isBundledEmit) {
        var declarationFilePath = _a.declarationFilePath;
        emitDeclarations(host, resolver, declarationDiagnostics, declarationFilePath, sources, isBundledEmit, false);
    }
}
ts.getDeclarationDiagnostics = getDeclarationDiagnostics;
function emitDeclarations(host, resolver, emitterDiagnostics, declarationFilePath, sourceFiles, isBundledEmit, emitOnlyDtsFiles) {
    var newLine = host.getNewLine();
    var compilerOptions = host.getCompilerOptions();
    var write;
    var writeLine;
    var increaseIndent;
    var decreaseIndent;
    var writeTextOfNode;
    var writer;
    createAndSetNewTextWriterWithSymbolWriter();
    var enclosingDeclaration;
    var resultHasExternalModuleIndicator;
    var currentText;
    var currentLineMap;
    var currentIdentifiers;
    var isCurrentFileExternalModule;
    var reportedDeclarationError = false;
    var errorNameNode;
    var emitJsDocComments = compilerOptions.removeComments ? ts.noop : writeJsDocComments;
    var emit = compilerOptions.stripInternal ? stripInternal : emitNode;
    var noDeclare;
    var moduleElementDeclarationEmitInfo = [];
    var asynchronousSubModuleDeclarationEmitInfo;
    var referencesOutput = "";
    var usedTypeDirectiveReferences;
    var emittedReferencedFiles = [];
    var addedGlobalFileReference = false;
    var allSourcesModuleElementDeclarationEmitInfo = [];
    ts.forEach(sourceFiles, function (sourceFile) {
        if (ts.isSourceFileJavaScript(sourceFile)) {
            return;
        }
        if (!compilerOptions.noResolve) {
            ts.forEach(sourceFile.referencedFiles, function (fileReference) {
                var referencedFile = ts.tryResolveScriptReference(host, sourceFile, fileReference);
                if (referencedFile && !ts.contains(emittedReferencedFiles, referencedFile)) {
                    if (writeReferencePath(referencedFile, !isBundledEmit && !addedGlobalFileReference, emitOnlyDtsFiles)) {
                        addedGlobalFileReference = true;
                    }
                    emittedReferencedFiles.push(referencedFile);
                }
            });
        }
        resultHasExternalModuleIndicator = false;
        if (!isBundledEmit || !ts.isExternalModule(sourceFile)) {
            noDeclare = false;
            emitSourceFile(sourceFile);
        }
        else if (ts.isExternalModule(sourceFile)) {
            noDeclare = true;
            write("declare module \"" + ts.getResolvedExternalModuleName(host, sourceFile) + "\" {");
            writeLine();
            increaseIndent();
            emitSourceFile(sourceFile);
            decreaseIndent();
            write("}");
            writeLine();
        }
        if (moduleElementDeclarationEmitInfo.length) {
            var oldWriter = writer;
            ts.forEach(moduleElementDeclarationEmitInfo, function (aliasEmitInfo) {
                if (aliasEmitInfo.isVisible && !aliasEmitInfo.asynchronousOutput) {
                    ts.Debug.assert(aliasEmitInfo.node.kind === 235);
                    createAndSetNewTextWriterWithSymbolWriter();
                    ts.Debug.assert(aliasEmitInfo.indent === 0 || (aliasEmitInfo.indent === 1 && isBundledEmit));
                    for (var i = 0; i < aliasEmitInfo.indent; i++) {
                        increaseIndent();
                    }
                    writeImportDeclaration(aliasEmitInfo.node);
                    aliasEmitInfo.asynchronousOutput = writer.getText();
                    for (var i = 0; i < aliasEmitInfo.indent; i++) {
                        decreaseIndent();
                    }
                }
            });
            setWriter(oldWriter);
            allSourcesModuleElementDeclarationEmitInfo = allSourcesModuleElementDeclarationEmitInfo.concat(moduleElementDeclarationEmitInfo);
            moduleElementDeclarationEmitInfo = [];
        }
        if (!isBundledEmit && ts.isExternalModule(sourceFile) && sourceFile.moduleAugmentations.length && !resultHasExternalModuleIndicator) {
            write("export {};");
            writeLine();
        }
    });
    if (usedTypeDirectiveReferences) {
        for (var directive in usedTypeDirectiveReferences) {
            referencesOutput += "/// <reference types=\"" + directive + "\" />" + newLine;
        }
    }
    return {
        reportedDeclarationError: reportedDeclarationError,
        moduleElementDeclarationEmitInfo: allSourcesModuleElementDeclarationEmitInfo,
        synchronousDeclarationOutput: writer.getText(),
        referencesOutput: referencesOutput,
    };
    function hasInternalAnnotation(range) {
        var comment = currentText.substring(range.pos, range.end);
        return comment.indexOf("@internal") >= 0;
    }
    function stripInternal(node) {
        if (node) {
            var leadingCommentRanges = ts.getLeadingCommentRanges(currentText, node.pos);
            if (ts.forEach(leadingCommentRanges, hasInternalAnnotation)) {
                return;
            }
            emitNode(node);
        }
    }
    function createAndSetNewTextWriterWithSymbolWriter() {
        var writer = ts.createTextWriter(newLine);
        writer.trackSymbol = trackSymbol;
        writer.reportInaccessibleThisError = reportInaccessibleThisError;
        writer.writeKeyword = writer.write;
        writer.writeOperator = writer.write;
        writer.writePunctuation = writer.write;
        writer.writeSpace = writer.write;
        writer.writeStringLiteral = writer.writeLiteral;
        writer.writeParameter = writer.write;
        writer.writeProperty = writer.write;
        writer.writeSymbol = writer.write;
        setWriter(writer);
    }
    function setWriter(newWriter) {
        writer = newWriter;
        write = newWriter.write;
        writeTextOfNode = newWriter.writeTextOfNode;
        writeLine = newWriter.writeLine;
        increaseIndent = newWriter.increaseIndent;
        decreaseIndent = newWriter.decreaseIndent;
    }
    function writeAsynchronousModuleElements(nodes) {
        var oldWriter = writer;
        ts.forEach(nodes, function (declaration) {
            var nodeToCheck;
            if (declaration.kind === 223) {
                nodeToCheck = declaration.parent.parent;
            }
            else if (declaration.kind === 238 || declaration.kind === 239 || declaration.kind === 236) {
                ts.Debug.fail("We should be getting ImportDeclaration instead to write");
            }
            else {
                nodeToCheck = declaration;
            }
            var moduleElementEmitInfo = ts.forEach(moduleElementDeclarationEmitInfo, function (declEmitInfo) { return declEmitInfo.node === nodeToCheck ? declEmitInfo : undefined; });
            if (!moduleElementEmitInfo && asynchronousSubModuleDeclarationEmitInfo) {
                moduleElementEmitInfo = ts.forEach(asynchronousSubModuleDeclarationEmitInfo, function (declEmitInfo) { return declEmitInfo.node === nodeToCheck ? declEmitInfo : undefined; });
            }
            if (moduleElementEmitInfo) {
                if (moduleElementEmitInfo.node.kind === 235) {
                    moduleElementEmitInfo.isVisible = true;
                }
                else {
                    createAndSetNewTextWriterWithSymbolWriter();
                    for (var declarationIndent = moduleElementEmitInfo.indent; declarationIndent; declarationIndent--) {
                        increaseIndent();
                    }
                    if (nodeToCheck.kind === 230) {
                        ts.Debug.assert(asynchronousSubModuleDeclarationEmitInfo === undefined);
                        asynchronousSubModuleDeclarationEmitInfo = [];
                    }
                    writeModuleElement(nodeToCheck);
                    if (nodeToCheck.kind === 230) {
                        moduleElementEmitInfo.subModuleElementDeclarationEmitInfo = asynchronousSubModuleDeclarationEmitInfo;
                        asynchronousSubModuleDeclarationEmitInfo = undefined;
                    }
                    moduleElementEmitInfo.asynchronousOutput = writer.getText();
                }
            }
        });
        setWriter(oldWriter);
    }
    function recordTypeReferenceDirectivesIfNecessary(typeReferenceDirectives) {
        if (!typeReferenceDirectives) {
            return;
        }
        if (!usedTypeDirectiveReferences) {
            usedTypeDirectiveReferences = ts.createMap();
        }
        for (var _i = 0, typeReferenceDirectives_1 = typeReferenceDirectives; _i < typeReferenceDirectives_1.length; _i++) {
            var directive = typeReferenceDirectives_1[_i];
            if (!(directive in usedTypeDirectiveReferences)) {
                usedTypeDirectiveReferences[directive] = directive;
            }
        }
    }
    function handleSymbolAccessibilityError(symbolAccessibilityResult) {
        if (symbolAccessibilityResult.accessibility === 0) {
            if (symbolAccessibilityResult && symbolAccessibilityResult.aliasesToMakeVisible) {
                writeAsynchronousModuleElements(symbolAccessibilityResult.aliasesToMakeVisible);
            }
        }
        else {
            reportedDeclarationError = true;
            var errorInfo = writer.getSymbolAccessibilityDiagnostic(symbolAccessibilityResult);
            if (errorInfo) {
                if (errorInfo.typeName) {
                    emitterDiagnostics.add(ts.createDiagnosticForNode(symbolAccessibilityResult.errorNode || errorInfo.errorNode, errorInfo.diagnosticMessage, ts.getTextOfNodeFromSourceText(currentText, errorInfo.typeName), symbolAccessibilityResult.errorSymbolName, symbolAccessibilityResult.errorModuleName));
                }
                else {
                    emitterDiagnostics.add(ts.createDiagnosticForNode(symbolAccessibilityResult.errorNode || errorInfo.errorNode, errorInfo.diagnosticMessage, symbolAccessibilityResult.errorSymbolName, symbolAccessibilityResult.errorModuleName));
                }
            }
        }
    }
    function trackSymbol(symbol, enclosingDeclaration, meaning) {
        handleSymbolAccessibilityError(resolver.isSymbolAccessible(symbol, enclosingDeclaration, meaning, true));
        recordTypeReferenceDirectivesIfNecessary(resolver.getTypeReferenceDirectivesForSymbol(symbol, meaning));
    }
    function reportInaccessibleThisError() {
        if (errorNameNode) {
            reportedDeclarationError = true;
            emitterDiagnostics.add(ts.createDiagnosticForNode(errorNameNode, ts.Diagnostics.The_inferred_type_of_0_references_an_inaccessible_this_type_A_type_annotation_is_necessary, ts.declarationNameToString(errorNameNode)));
        }
    }
    function writeTypeOfDeclaration(declaration, type, getSymbolAccessibilityDiagnostic) {
        writer.getSymbolAccessibilityDiagnostic = getSymbolAccessibilityDiagnostic;
        write(": ");
        if (type) {
            emitType(type);
        }
        else {
            errorNameNode = declaration.name;
            resolver.writeTypeOfDeclaration(declaration, enclosingDeclaration, 2 | 1024, writer);
            errorNameNode = undefined;
        }
    }
    function writeReturnTypeAtSignature(signature, getSymbolAccessibilityDiagnostic) {
        writer.getSymbolAccessibilityDiagnostic = getSymbolAccessibilityDiagnostic;
        write(": ");
        if (signature.type) {
            emitType(signature.type);
        }
        else {
            errorNameNode = signature.name;
            resolver.writeReturnTypeOfSignatureDeclaration(signature, enclosingDeclaration, 2 | 1024, writer);
            errorNameNode = undefined;
        }
    }
    function emitLines(nodes) {
        for (var _i = 0, nodes_4 = nodes; _i < nodes_4.length; _i++) {
            var node = nodes_4[_i];
            emit(node);
        }
    }
    function emitSeparatedList(nodes, separator, eachNodeEmitFn, canEmitFn) {
        var currentWriterPos = writer.getTextPos();
        for (var _i = 0, nodes_5 = nodes; _i < nodes_5.length; _i++) {
            var node = nodes_5[_i];
            if (!canEmitFn || canEmitFn(node)) {
                if (currentWriterPos !== writer.getTextPos()) {
                    write(separator);
                }
                currentWriterPos = writer.getTextPos();
                eachNodeEmitFn(node);
            }
        }
    }
    function emitCommaList(nodes, eachNodeEmitFn, canEmitFn) {
        emitSeparatedList(nodes, ", ", eachNodeEmitFn, canEmitFn);
    }
    function writeJsDocComments(declaration) {
        if (declaration) {
            var jsDocComments = ts.getJSDocCommentRanges(declaration, currentText);
            ts.emitNewLineBeforeLeadingComments(currentLineMap, writer, declaration, jsDocComments);
            ts.emitComments(currentText, currentLineMap, writer, jsDocComments, false, true, newLine, ts.writeCommentRange);
        }
    }
    function emitTypeWithNewGetSymbolAccessibilityDiagnostic(type, getSymbolAccessibilityDiagnostic) {
        writer.getSymbolAccessibilityDiagnostic = getSymbolAccessibilityDiagnostic;
        emitType(type);
    }
    function emitType(type) {
        switch (type.kind) {
            case 118:
            case 134:
            case 132:
            case 121:
            case 135:
            case 104:
            case 137:
            case 94:
            case 129:
            case 167:
            case 171:
                return writeTextOfNode(currentText, type);
            case 199:
                return emitExpressionWithTypeArguments(type);
            case 157:
                return emitTypeReference(type);
            case 160:
                return emitTypeQuery(type);
            case 162:
                return emitArrayType(type);
            case 163:
                return emitTupleType(type);
            case 164:
                return emitUnionType(type);
            case 165:
                return emitIntersectionType(type);
            case 166:
                return emitParenType(type);
            case 168:
                return emitTypeOperator(type);
            case 169:
                return emitIndexedAccessType(type);
            case 170:
                return emitMappedType(type);
            case 158:
            case 159:
                return emitSignatureDeclarationWithJsDocComments(type);
            case 161:
                return emitTypeLiteral(type);
            case 70:
                return emitEntityName(type);
            case 141:
                return emitEntityName(type);
            case 156:
                return emitTypePredicate(type);
        }
        function writeEntityName(entityName) {
            if (entityName.kind === 70) {
                writeTextOfNode(currentText, entityName);
            }
            else {
                var left = entityName.kind === 141 ? entityName.left : entityName.expression;
                var right = entityName.kind === 141 ? entityName.right : entityName.name;
                writeEntityName(left);
                write(".");
                writeTextOfNode(currentText, right);
            }
        }
        function emitEntityName(entityName) {
            var visibilityResult = resolver.isEntityNameVisible(entityName, entityName.parent.kind === 234 ? entityName.parent : enclosingDeclaration);
            handleSymbolAccessibilityError(visibilityResult);
            recordTypeReferenceDirectivesIfNecessary(resolver.getTypeReferenceDirectivesForEntityName(entityName));
            writeEntityName(entityName);
        }
        function emitExpressionWithTypeArguments(node) {
            if (ts.isEntityNameExpression(node.expression)) {
                ts.Debug.assert(node.expression.kind === 70 || node.expression.kind === 177);
                emitEntityName(node.expression);
                if (node.typeArguments) {
                    write("<");
                    emitCommaList(node.typeArguments, emitType);
                    write(">");
                }
            }
        }
        function emitTypeReference(type) {
            emitEntityName(type.typeName);
            if (type.typeArguments) {
                write("<");
                emitCommaList(type.typeArguments, emitType);
                write(">");
            }
        }
        function emitTypePredicate(type) {
            writeTextOfNode(currentText, type.parameterName);
            write(" is ");
            emitType(type.type);
        }
        function emitTypeQuery(type) {
            write("typeof ");
            emitEntityName(type.exprName);
        }
        function emitArrayType(type) {
            emitType(type.elementType);
            write("[]");
        }
        function emitTupleType(type) {
            write("[");
            emitCommaList(type.elementTypes, emitType);
            write("]");
        }
        function emitUnionType(type) {
            emitSeparatedList(type.types, " | ", emitType);
        }
        function emitIntersectionType(type) {
            emitSeparatedList(type.types, " & ", emitType);
        }
        function emitParenType(type) {
            write("(");
            emitType(type.type);
            write(")");
        }
        function emitTypeOperator(type) {
            write(ts.tokenToString(type.operator));
            write(" ");
            emitType(type.type);
        }
        function emitIndexedAccessType(node) {
            emitType(node.objectType);
            write("[");
            emitType(node.indexType);
            write("]");
        }
        function emitMappedType(node) {
            var prevEnclosingDeclaration = enclosingDeclaration;
            enclosingDeclaration = node;
            write("{");
            writeLine();
            increaseIndent();
            if (node.readonlyToken) {
                write("readonly ");
            }
            write("[");
            writeEntityName(node.typeParameter.name);
            write(" in ");
            emitType(node.typeParameter.constraint);
            write("]");
            if (node.questionToken) {
                write("?");
            }
            write(": ");
            emitType(node.type);
            write(";");
            writeLine();
            decreaseIndent();
            write("}");
            enclosingDeclaration = prevEnclosingDeclaration;
        }
        function emitTypeLiteral(type) {
            write("{");
            if (type.members.length) {
                writeLine();
                increaseIndent();
                emitLines(type.members);
                decreaseIndent();
            }
            write("}");
        }
    }
    function emitSourceFile(node) {
        currentText = node.text;
        currentLineMap = ts.getLineStarts(node);
        currentIdentifiers = node.identifiers;
        isCurrentFileExternalModule = ts.isExternalModule(node);
        enclosingDeclaration = node;
        ts.emitDetachedComments(currentText, currentLineMap, writer, ts.writeCommentRange, node, newLine, true);
        emitLines(node.statements);
    }
    function getExportDefaultTempVariableName() {
        var baseName = "_default";
        if (!(baseName in currentIdentifiers)) {
            return baseName;
        }
        var count = 0;
        while (true) {
            count++;
            var name_40 = baseName + "_" + count;
            if (!(name_40 in currentIdentifiers)) {
                return name_40;
            }
        }
    }
    function emitExportAssignment(node) {
        if (node.expression.kind === 70) {
            write(node.isExportEquals ? "export = " : "export default ");
            writeTextOfNode(currentText, node.expression);
        }
        else {
            var tempVarName = getExportDefaultTempVariableName();
            if (!noDeclare) {
                write("declare ");
            }
            write("var ");
            write(tempVarName);
            write(": ");
            writer.getSymbolAccessibilityDiagnostic = getDefaultExportAccessibilityDiagnostic;
            resolver.writeTypeOfExpression(node.expression, enclosingDeclaration, 2 | 1024, writer);
            write(";");
            writeLine();
            write(node.isExportEquals ? "export = " : "export default ");
            write(tempVarName);
        }
        write(";");
        writeLine();
        if (node.expression.kind === 70) {
            var nodes = resolver.collectLinkedAliases(node.expression);
            writeAsynchronousModuleElements(nodes);
        }
        function getDefaultExportAccessibilityDiagnostic() {
            return {
                diagnosticMessage: ts.Diagnostics.Default_export_of_the_module_has_or_is_using_private_name_0,
                errorNode: node
            };
        }
    }
    function isModuleElementVisible(node) {
        return resolver.isDeclarationVisible(node);
    }
    function emitModuleElement(node, isModuleElementVisible) {
        if (isModuleElementVisible) {
            writeModuleElement(node);
        }
        else if (node.kind === 234 ||
            (node.parent.kind === 261 && isCurrentFileExternalModule)) {
            var isVisible = void 0;
            if (asynchronousSubModuleDeclarationEmitInfo && node.parent.kind !== 261) {
                asynchronousSubModuleDeclarationEmitInfo.push({
                    node: node,
                    outputPos: writer.getTextPos(),
                    indent: writer.getIndent(),
                    isVisible: isVisible
                });
            }
            else {
                if (node.kind === 235) {
                    var importDeclaration = node;
                    if (importDeclaration.importClause) {
                        isVisible = (importDeclaration.importClause.name && resolver.isDeclarationVisible(importDeclaration.importClause)) ||
                            isVisibleNamedBinding(importDeclaration.importClause.namedBindings);
                    }
                }
                moduleElementDeclarationEmitInfo.push({
                    node: node,
                    outputPos: writer.getTextPos(),
                    indent: writer.getIndent(),
                    isVisible: isVisible
                });
            }
        }
    }
    function writeModuleElement(node) {
        switch (node.kind) {
            case 225:
                return writeFunctionDeclaration(node);
            case 205:
                return writeVariableStatement(node);
            case 227:
                return writeInterfaceDeclaration(node);
            case 226:
                return writeClassDeclaration(node);
            case 228:
                return writeTypeAliasDeclaration(node);
            case 229:
                return writeEnumDeclaration(node);
            case 230:
                return writeModuleDeclaration(node);
            case 234:
                return writeImportEqualsDeclaration(node);
            case 235:
                return writeImportDeclaration(node);
            default:
                ts.Debug.fail("Unknown symbol kind");
        }
    }
    function emitModuleElementDeclarationFlags(node) {
        if (node.parent.kind === 261) {
            var modifiers = ts.getModifierFlags(node);
            if (modifiers & 1) {
                write("export ");
            }
            if (modifiers & 512) {
                write("default ");
            }
            else if (node.kind !== 227 && !noDeclare) {
                write("declare ");
            }
        }
    }
    function emitClassMemberDeclarationFlags(flags) {
        if (flags & 8) {
            write("private ");
        }
        else if (flags & 16) {
            write("protected ");
        }
        if (flags & 32) {
            write("static ");
        }
        if (flags & 64) {
            write("readonly ");
        }
        if (flags & 128) {
            write("abstract ");
        }
    }
    function writeImportEqualsDeclaration(node) {
        emitJsDocComments(node);
        if (ts.hasModifier(node, 1)) {
            write("export ");
        }
        write("import ");
        writeTextOfNode(currentText, node.name);
        write(" = ");
        if (ts.isInternalModuleImportEqualsDeclaration(node)) {
            emitTypeWithNewGetSymbolAccessibilityDiagnostic(node.moduleReference, getImportEntityNameVisibilityError);
            write(";");
        }
        else {
            write("require(");
            emitExternalModuleSpecifier(node);
            write(");");
        }
        writer.writeLine();
        function getImportEntityNameVisibilityError() {
            return {
                diagnosticMessage: ts.Diagnostics.Import_declaration_0_is_using_private_name_1,
                errorNode: node,
                typeName: node.name
            };
        }
    }
    function isVisibleNamedBinding(namedBindings) {
        if (namedBindings) {
            if (namedBindings.kind === 237) {
                return resolver.isDeclarationVisible(namedBindings);
            }
            else {
                return ts.forEach(namedBindings.elements, function (namedImport) { return resolver.isDeclarationVisible(namedImport); });
            }
        }
    }
    function writeImportDeclaration(node) {
        emitJsDocComments(node);
        if (ts.hasModifier(node, 1)) {
            write("export ");
        }
        write("import ");
        if (node.importClause) {
            var currentWriterPos = writer.getTextPos();
            if (node.importClause.name && resolver.isDeclarationVisible(node.importClause)) {
                writeTextOfNode(currentText, node.importClause.name);
            }
            if (node.importClause.namedBindings && isVisibleNamedBinding(node.importClause.namedBindings)) {
                if (currentWriterPos !== writer.getTextPos()) {
                    write(", ");
                }
                if (node.importClause.namedBindings.kind === 237) {
                    write("* as ");
                    writeTextOfNode(currentText, node.importClause.namedBindings.name);
                }
                else {
                    write("{ ");
                    emitCommaList(node.importClause.namedBindings.elements, emitImportOrExportSpecifier, resolver.isDeclarationVisible);
                    write(" }");
                }
            }
            write(" from ");
        }
        emitExternalModuleSpecifier(node);
        write(";");
        writer.writeLine();
    }
    function emitExternalModuleSpecifier(parent) {
        resultHasExternalModuleIndicator = resultHasExternalModuleIndicator || parent.kind !== 230;
        var moduleSpecifier;
        if (parent.kind === 234) {
            var node = parent;
            moduleSpecifier = ts.getExternalModuleImportEqualsDeclarationExpression(node);
        }
        else if (parent.kind === 230) {
            moduleSpecifier = parent.name;
        }
        else {
            var node = parent;
            moduleSpecifier = node.moduleSpecifier;
        }
        if (moduleSpecifier.kind === 9 && isBundledEmit && (compilerOptions.out || compilerOptions.outFile)) {
            var moduleName = ts.getExternalModuleNameFromDeclaration(host, resolver, parent);
            if (moduleName) {
                write('"');
                write(moduleName);
                write('"');
                return;
            }
        }
        writeTextOfNode(currentText, moduleSpecifier);
    }
    function emitImportOrExportSpecifier(node) {
        if (node.propertyName) {
            writeTextOfNode(currentText, node.propertyName);
            write(" as ");
        }
        writeTextOfNode(currentText, node.name);
    }
    function emitExportSpecifier(node) {
        emitImportOrExportSpecifier(node);
        var nodes = resolver.collectLinkedAliases(node.propertyName || node.name);
        writeAsynchronousModuleElements(nodes);
    }
    function emitExportDeclaration(node) {
        emitJsDocComments(node);
        write("export ");
        if (node.exportClause) {
            write("{ ");
            emitCommaList(node.exportClause.elements, emitExportSpecifier);
            write(" }");
        }
        else {
            write("*");
        }
        if (node.moduleSpecifier) {
            write(" from ");
            emitExternalModuleSpecifier(node);
        }
        write(";");
        writer.writeLine();
    }
    function writeModuleDeclaration(node) {
        emitJsDocComments(node);
        emitModuleElementDeclarationFlags(node);
        if (ts.isGlobalScopeAugmentation(node)) {
            write("global ");
        }
        else {
            if (node.flags & 16) {
                write("namespace ");
            }
            else {
                write("module ");
            }
            if (ts.isExternalModuleAugmentation(node)) {
                emitExternalModuleSpecifier(node);
            }
            else {
                writeTextOfNode(currentText, node.name);
            }
        }
        while (node.body && node.body.kind !== 231) {
            node = node.body;
            write(".");
            writeTextOfNode(currentText, node.name);
        }
        var prevEnclosingDeclaration = enclosingDeclaration;
        if (node.body) {
            enclosingDeclaration = node;
            write(" {");
            writeLine();
            increaseIndent();
            emitLines(node.body.statements);
            decreaseIndent();
            write("}");
            writeLine();
            enclosingDeclaration = prevEnclosingDeclaration;
        }
        else {
            write(";");
        }
    }
    function writeTypeAliasDeclaration(node) {
        var prevEnclosingDeclaration = enclosingDeclaration;
        enclosingDeclaration = node;
        emitJsDocComments(node);
        emitModuleElementDeclarationFlags(node);
        write("type ");
        writeTextOfNode(currentText, node.name);
        emitTypeParameters(node.typeParameters);
        write(" = ");
        emitTypeWithNewGetSymbolAccessibilityDiagnostic(node.type, getTypeAliasDeclarationVisibilityError);
        write(";");
        writeLine();
        enclosingDeclaration = prevEnclosingDeclaration;
        function getTypeAliasDeclarationVisibilityError() {
            return {
                diagnosticMessage: ts.Diagnostics.Exported_type_alias_0_has_or_is_using_private_name_1,
                errorNode: node.type,
                typeName: node.name
            };
        }
    }
    function writeEnumDeclaration(node) {
        emitJsDocComments(node);
        emitModuleElementDeclarationFlags(node);
        if (ts.isConst(node)) {
            write("const ");
        }
        write("enum ");
        writeTextOfNode(currentText, node.name);
        write(" {");
        writeLine();
        increaseIndent();
        emitLines(node.members);
        decreaseIndent();
        write("}");
        writeLine();
    }
    function emitEnumMemberDeclaration(node) {
        emitJsDocComments(node);
        writeTextOfNode(currentText, node.name);
        var enumMemberValue = resolver.getConstantValue(node);
        if (enumMemberValue !== undefined) {
            write(" = ");
            write(enumMemberValue.toString());
        }
        write(",");
        writeLine();
    }
    function isPrivateMethodTypeParameter(node) {
        return node.parent.kind === 149 && ts.hasModifier(node.parent, 8);
    }
    function emitTypeParameters(typeParameters) {
        function emitTypeParameter(node) {
            increaseIndent();
            emitJsDocComments(node);
            decreaseIndent();
            writeTextOfNode(currentText, node.name);
            if (node.constraint && !isPrivateMethodTypeParameter(node)) {
                write(" extends ");
                if (node.parent.kind === 158 ||
                    node.parent.kind === 159 ||
                    (node.parent.parent && node.parent.parent.kind === 161)) {
                    ts.Debug.assert(node.parent.kind === 149 ||
                        node.parent.kind === 148 ||
                        node.parent.kind === 158 ||
                        node.parent.kind === 159 ||
                        node.parent.kind === 153 ||
                        node.parent.kind === 154);
                    emitType(node.constraint);
                }
                else {
                    emitTypeWithNewGetSymbolAccessibilityDiagnostic(node.constraint, getTypeParameterConstraintVisibilityError);
                }
            }
            function getTypeParameterConstraintVisibilityError() {
                var diagnosticMessage;
                switch (node.parent.kind) {
                    case 226:
                        diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_class_has_or_is_using_private_name_1;
                        break;
                    case 227:
                        diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1;
                        break;
                    case 154:
                        diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1;
                        break;
                    case 153:
                        diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1;
                        break;
                    case 149:
                    case 148:
                        if (ts.hasModifier(node.parent, 32)) {
                            diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1;
                        }
                        else if (node.parent.parent.kind === 226) {
                            diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1;
                        }
                        else {
                            diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1;
                        }
                        break;
                    case 225:
                        diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_function_has_or_is_using_private_name_1;
                        break;
                    case 228:
                        diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1;
                        break;
                    default:
                        ts.Debug.fail("This is unknown parent for type parameter: " + node.parent.kind);
                }
                return {
                    diagnosticMessage: diagnosticMessage,
                    errorNode: node,
                    typeName: node.name
                };
            }
        }
        if (typeParameters) {
            write("<");
            emitCommaList(typeParameters, emitTypeParameter);
            write(">");
        }
    }
    function emitHeritageClause(typeReferences, isImplementsList) {
        if (typeReferences) {
            write(isImplementsList ? " implements " : " extends ");
            emitCommaList(typeReferences, emitTypeOfTypeReference);
        }
        function emitTypeOfTypeReference(node) {
            if (ts.isEntityNameExpression(node.expression)) {
                emitTypeWithNewGetSymbolAccessibilityDiagnostic(node, getHeritageClauseVisibilityError);
            }
            else if (!isImplementsList && node.expression.kind === 94) {
                write("null");
            }
            else {
                writer.getSymbolAccessibilityDiagnostic = getHeritageClauseVisibilityError;
                resolver.writeBaseConstructorTypeOfClass(enclosingDeclaration, enclosingDeclaration, 2 | 1024, writer);
            }
            function getHeritageClauseVisibilityError() {
                var diagnosticMessage;
                if (node.parent.parent.kind === 226) {
                    diagnosticMessage = isImplementsList ?
                        ts.Diagnostics.Implements_clause_of_exported_class_0_has_or_is_using_private_name_1 :
                        ts.Diagnostics.Extends_clause_of_exported_class_0_has_or_is_using_private_name_1;
                }
                else {
                    diagnosticMessage = ts.Diagnostics.Extends_clause_of_exported_interface_0_has_or_is_using_private_name_1;
                }
                return {
                    diagnosticMessage: diagnosticMessage,
                    errorNode: node,
                    typeName: node.parent.parent.name
                };
            }
        }
    }
    function writeClassDeclaration(node) {
        function emitParameterProperties(constructorDeclaration) {
            if (constructorDeclaration) {
                ts.forEach(constructorDeclaration.parameters, function (param) {
                    if (ts.hasModifier(param, 92)) {
                        emitPropertyDeclaration(param);
                    }
                });
            }
        }
        emitJsDocComments(node);
        emitModuleElementDeclarationFlags(node);
        if (ts.hasModifier(node, 128)) {
            write("abstract ");
        }
        write("class ");
        writeTextOfNode(currentText, node.name);
        var prevEnclosingDeclaration = enclosingDeclaration;
        enclosingDeclaration = node;
        emitTypeParameters(node.typeParameters);
        var baseTypeNode = ts.getClassExtendsHeritageClauseElement(node);
        if (baseTypeNode) {
            emitHeritageClause([baseTypeNode], false);
        }
        emitHeritageClause(ts.getClassImplementsHeritageClauseElements(node), true);
        write(" {");
        writeLine();
        increaseIndent();
        emitParameterProperties(ts.getFirstConstructorWithBody(node));
        emitLines(node.members);
        decreaseIndent();
        write("}");
        writeLine();
        enclosingDeclaration = prevEnclosingDeclaration;
    }
    function writeInterfaceDeclaration(node) {
        emitJsDocComments(node);
        emitModuleElementDeclarationFlags(node);
        write("interface ");
        writeTextOfNode(currentText, node.name);
        var prevEnclosingDeclaration = enclosingDeclaration;
        enclosingDeclaration = node;
        emitTypeParameters(node.typeParameters);
        var interfaceExtendsTypes = ts.filter(ts.getInterfaceBaseTypeNodes(node), function (base) { return ts.isEntityNameExpression(base.expression); });
        if (interfaceExtendsTypes && interfaceExtendsTypes.length) {
            emitHeritageClause(interfaceExtendsTypes, false);
        }
        write(" {");
        writeLine();
        increaseIndent();
        emitLines(node.members);
        decreaseIndent();
        write("}");
        writeLine();
        enclosingDeclaration = prevEnclosingDeclaration;
    }
    function emitPropertyDeclaration(node) {
        if (ts.hasDynamicName(node)) {
            return;
        }
        emitJsDocComments(node);
        emitClassMemberDeclarationFlags(ts.getModifierFlags(node));
        emitVariableDeclaration(node);
        write(";");
        writeLine();
    }
    function emitVariableDeclaration(node) {
        if (node.kind !== 223 || resolver.isDeclarationVisible(node)) {
            if (ts.isBindingPattern(node.name)) {
                emitBindingPattern(node.name);
            }
            else {
                writeTextOfNode(currentText, node.name);
                if ((node.kind === 147 || node.kind === 146 ||
                    (node.kind === 144 && !ts.isParameterPropertyDeclaration(node))) && ts.hasQuestionToken(node)) {
                    write("?");
                }
                if ((node.kind === 147 || node.kind === 146) && node.parent.kind === 161) {
                    emitTypeOfVariableDeclarationFromTypeLiteral(node);
                }
                else if (resolver.isLiteralConstDeclaration(node)) {
                    write(" = ");
                    resolver.writeLiteralConstValue(node, writer);
                }
                else if (!ts.hasModifier(node, 8)) {
                    writeTypeOfDeclaration(node, node.type, getVariableDeclarationTypeVisibilityError);
                }
            }
        }
        function getVariableDeclarationTypeVisibilityDiagnosticMessage(symbolAccessibilityResult) {
            if (node.kind === 223) {
                return symbolAccessibilityResult.errorModuleName ?
                    symbolAccessibilityResult.accessibility === 2 ?
                        ts.Diagnostics.Exported_variable_0_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
                        ts.Diagnostics.Exported_variable_0_has_or_is_using_name_1_from_private_module_2 :
                    ts.Diagnostics.Exported_variable_0_has_or_is_using_private_name_1;
            }
            else if (node.kind === 147 || node.kind === 146) {
                if (ts.hasModifier(node, 32)) {
                    return symbolAccessibilityResult.errorModuleName ?
                        symbolAccessibilityResult.accessibility === 2 ?
                            ts.Diagnostics.Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
                            ts.Diagnostics.Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2 :
                        ts.Diagnostics.Public_static_property_0_of_exported_class_has_or_is_using_private_name_1;
                }
                else if (node.parent.kind === 226) {
                    return symbolAccessibilityResult.errorModuleName ?
                        symbolAccessibilityResult.accessibility === 2 ?
                            ts.Diagnostics.Public_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
                            ts.Diagnostics.Public_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2 :
                        ts.Diagnostics.Public_property_0_of_exported_class_has_or_is_using_private_name_1;
                }
                else {
                    return symbolAccessibilityResult.errorModuleName ?
                        ts.Diagnostics.Property_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2 :
                        ts.Diagnostics.Property_0_of_exported_interface_has_or_is_using_private_name_1;
                }
            }
        }
        function getVariableDeclarationTypeVisibilityError(symbolAccessibilityResult) {
            var diagnosticMessage = getVariableDeclarationTypeVisibilityDiagnosticMessage(symbolAccessibilityResult);
            return diagnosticMessage !== undefined ? {
                diagnosticMessage: diagnosticMessage,
                errorNode: node,
                typeName: node.name
            } : undefined;
        }
        function emitBindingPattern(bindingPattern) {
            var elements = [];
            for (var _i = 0, _a = bindingPattern.elements; _i < _a.length; _i++) {
                var element = _a[_i];
                if (element.kind !== 198) {
                    elements.push(element);
                }
            }
            emitCommaList(elements, emitBindingElement);
        }
        function emitBindingElement(bindingElement) {
            function getBindingElementTypeVisibilityError(symbolAccessibilityResult) {
                var diagnosticMessage = getVariableDeclarationTypeVisibilityDiagnosticMessage(symbolAccessibilityResult);
                return diagnosticMessage !== undefined ? {
                    diagnosticMessage: diagnosticMessage,
                    errorNode: bindingElement,
                    typeName: bindingElement.name
                } : undefined;
            }
            if (bindingElement.name) {
                if (ts.isBindingPattern(bindingElement.name)) {
                    emitBindingPattern(bindingElement.name);
                }
                else {
                    writeTextOfNode(currentText, bindingElement.name);
                    writeTypeOfDeclaration(bindingElement, undefined, getBindingElementTypeVisibilityError);
                }
            }
        }
    }
    function emitTypeOfVariableDeclarationFromTypeLiteral(node) {
        if (node.type) {
            write(": ");
            emitType(node.type);
        }
    }
    function isVariableStatementVisible(node) {
        return ts.forEach(node.declarationList.declarations, function (varDeclaration) { return resolver.isDeclarationVisible(varDeclaration); });
    }
    function writeVariableStatement(node) {
        emitJsDocComments(node);
        emitModuleElementDeclarationFlags(node);
        if (ts.isLet(node.declarationList)) {
            write("let ");
        }
        else if (ts.isConst(node.declarationList)) {
            write("const ");
        }
        else {
            write("var ");
        }
        emitCommaList(node.declarationList.declarations, emitVariableDeclaration, resolver.isDeclarationVisible);
        write(";");
        writeLine();
    }
    function emitAccessorDeclaration(node) {
        if (ts.hasDynamicName(node)) {
            return;
        }
        var accessors = ts.getAllAccessorDeclarations(node.parent.members, node);
        var accessorWithTypeAnnotation;
        if (node === accessors.firstAccessor) {
            emitJsDocComments(accessors.getAccessor);
            emitJsDocComments(accessors.setAccessor);
            emitClassMemberDeclarationFlags(ts.getModifierFlags(node) | (accessors.setAccessor ? 0 : 64));
            writeTextOfNode(currentText, node.name);
            if (!ts.hasModifier(node, 8)) {
                accessorWithTypeAnnotation = node;
                var type = getTypeAnnotationFromAccessor(node);
                if (!type) {
                    var anotherAccessor = node.kind === 151 ? accessors.setAccessor : accessors.getAccessor;
                    type = getTypeAnnotationFromAccessor(anotherAccessor);
                    if (type) {
                        accessorWithTypeAnnotation = anotherAccessor;
                    }
                }
                writeTypeOfDeclaration(node, type, getAccessorDeclarationTypeVisibilityError);
            }
            write(";");
            writeLine();
        }
        function getTypeAnnotationFromAccessor(accessor) {
            if (accessor) {
                return accessor.kind === 151
                    ? accessor.type
                    : accessor.parameters.length > 0
                        ? accessor.parameters[0].type
                        : undefined;
            }
        }
        function getAccessorDeclarationTypeVisibilityError(symbolAccessibilityResult) {
            var diagnosticMessage;
            if (accessorWithTypeAnnotation.kind === 152) {
                if (ts.hasModifier(accessorWithTypeAnnotation.parent, 32)) {
                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
                        ts.Diagnostics.Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
                        ts.Diagnostics.Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_private_name_1;
                }
                else {
                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
                        ts.Diagnostics.Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
                        ts.Diagnostics.Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_private_name_1;
                }
                return {
                    diagnosticMessage: diagnosticMessage,
                    errorNode: accessorWithTypeAnnotation.parameters[0],
                    typeName: accessorWithTypeAnnotation.name
                };
            }
            else {
                if (ts.hasModifier(accessorWithTypeAnnotation, 32)) {
                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
                        symbolAccessibilityResult.accessibility === 2 ?
                            ts.Diagnostics.Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named :
                            ts.Diagnostics.Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_private_module_1 :
                        ts.Diagnostics.Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_private_name_0;
                }
                else {
                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
                        symbolAccessibilityResult.accessibility === 2 ?
                            ts.Diagnostics.Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named :
                            ts.Diagnostics.Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_private_module_1 :
                        ts.Diagnostics.Return_type_of_public_property_getter_from_exported_class_has_or_is_using_private_name_0;
                }
                return {
                    diagnosticMessage: diagnosticMessage,
                    errorNode: accessorWithTypeAnnotation.name,
                    typeName: undefined
                };
            }
        }
    }
    function writeFunctionDeclaration(node) {
        if (ts.hasDynamicName(node)) {
            return;
        }
        if (!resolver.isImplementationOfOverload(node)) {
            emitJsDocComments(node);
            if (node.kind === 225) {
                emitModuleElementDeclarationFlags(node);
            }
            else if (node.kind === 149 || node.kind === 150) {
                emitClassMemberDeclarationFlags(ts.getModifierFlags(node));
            }
            if (node.kind === 225) {
                write("function ");
                writeTextOfNode(currentText, node.name);
            }
            else if (node.kind === 150) {
                write("constructor");
            }
            else {
                writeTextOfNode(currentText, node.name);
                if (ts.hasQuestionToken(node)) {
                    write("?");
                }
            }
            emitSignatureDeclaration(node);
        }
    }
    function emitSignatureDeclarationWithJsDocComments(node) {
        emitJsDocComments(node);
        emitSignatureDeclaration(node);
    }
    function emitSignatureDeclaration(node) {
        var prevEnclosingDeclaration = enclosingDeclaration;
        enclosingDeclaration = node;
        var closeParenthesizedFunctionType = false;
        if (node.kind === 155) {
            emitClassMemberDeclarationFlags(ts.getModifierFlags(node));
            write("[");
        }
        else {
            if (node.kind === 154 || node.kind === 159) {
                write("new ");
            }
            else if (node.kind === 158) {
                var currentOutput = writer.getText();
                if (node.typeParameters && currentOutput.charAt(currentOutput.length - 1) === "<") {
                    closeParenthesizedFunctionType = true;
                    write("(");
                }
            }
            emitTypeParameters(node.typeParameters);
            write("(");
        }
        emitCommaList(node.parameters, emitParameterDeclaration);
        if (node.kind === 155) {
            write("]");
        }
        else {
            write(")");
        }
        var isFunctionTypeOrConstructorType = node.kind === 158 || node.kind === 159;
        if (isFunctionTypeOrConstructorType || node.parent.kind === 161) {
            if (node.type) {
                write(isFunctionTypeOrConstructorType ? " => " : ": ");
                emitType(node.type);
            }
        }
        else if (node.kind !== 150 && !ts.hasModifier(node, 8)) {
            writeReturnTypeAtSignature(node, getReturnTypeVisibilityError);
        }
        enclosingDeclaration = prevEnclosingDeclaration;
        if (!isFunctionTypeOrConstructorType) {
            write(";");
            writeLine();
        }
        else if (closeParenthesizedFunctionType) {
            write(")");
        }
        function getReturnTypeVisibilityError(symbolAccessibilityResult) {
            var diagnosticMessage;
            switch (node.kind) {
                case 154:
                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
                        ts.Diagnostics.Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1 :
                        ts.Diagnostics.Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_0;
                    break;
                case 153:
                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
                        ts.Diagnostics.Return_type_of_call_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1 :
                        ts.Diagnostics.Return_type_of_call_signature_from_exported_interface_has_or_is_using_private_name_0;
                    break;
                case 155:
                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
                        ts.Diagnostics.Return_type_of_index_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1 :
                        ts.Diagnostics.Return_type_of_index_signature_from_exported_interface_has_or_is_using_private_name_0;
                    break;
                case 149:
                case 148:
                    if (ts.hasModifier(node, 32)) {
                        diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
                            symbolAccessibilityResult.accessibility === 2 ?
                                ts.Diagnostics.Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named :
                                ts.Diagnostics.Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_private_module_1 :
                            ts.Diagnostics.Return_type_of_public_static_method_from_exported_class_has_or_is_using_private_name_0;
                    }
                    else if (node.parent.kind === 226) {
                        diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
                            symbolAccessibilityResult.accessibility === 2 ?
                                ts.Diagnostics.Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named :
                                ts.Diagnostics.Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_private_module_1 :
                            ts.Diagnostics.Return_type_of_public_method_from_exported_class_has_or_is_using_private_name_0;
                    }
                    else {
                        diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
                            ts.Diagnostics.Return_type_of_method_from_exported_interface_has_or_is_using_name_0_from_private_module_1 :
                            ts.Diagnostics.Return_type_of_method_from_exported_interface_has_or_is_using_private_name_0;
                    }
                    break;
                case 225:
                    diagnosticMessage = symbolAccessibilityResult.errorModuleName ?
                        symbolAccessibilityResult.accessibility === 2 ?
                            ts.Diagnostics.Return_type_of_exported_function_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named :
                            ts.Diagnostics.Return_type_of_exported_function_has_or_is_using_name_0_from_private_module_1 :
                        ts.Diagnostics.Return_type_of_exported_function_has_or_is_using_private_name_0;
                    break;
                default:
                    ts.Debug.fail("This is unknown kind for signature: " + node.kind);
            }
            return {
                diagnosticMessage: diagnosticMessage,
                errorNode: node.name || node
            };
        }
    }
    function emitParameterDeclaration(node) {
        increaseIndent();
        emitJsDocComments(node);
        if (node.dotDotDotToken) {
            write("...");
        }
        if (ts.isBindingPattern(node.name)) {
            emitBindingPattern(node.name);
        }
        else {
            writeTextOfNode(currentText, node.name);
        }
        if (resolver.isOptionalParameter(node)) {
            write("?");
        }
        decreaseIndent();
        if (node.parent.kind === 158 ||
            node.parent.kind === 159 ||
            node.parent.parent.kind === 161) {
            emitTypeOfVariableDeclarationFromTypeLiteral(node);
        }
        else if (!ts.hasModifier(node.parent, 8)) {
            writeTypeOfDeclaration(node, node.type, getParameterDeclarationTypeVisibilityError);
        }
        function getParameterDeclarationTypeVisibilityError(symbolAccessibilityResult) {
            var diagnosticMessage = getParameterDeclarationTypeVisibilityDiagnosticMessage(symbolAccessibilityResult);
            return diagnosticMessage !== undefined ? {
                diagnosticMessage: diagnosticMessage,
                errorNode: node,
                typeName: node.name
            } : undefined;
        }
        function getParameterDeclarationTypeVisibilityDiagnosticMessage(symbolAccessibilityResult) {
            switch (node.parent.kind) {
                case 150:
                    return symbolAccessibilityResult.errorModuleName ?
                        symbolAccessibilityResult.accessibility === 2 ?
                            ts.Diagnostics.Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
                            ts.Diagnostics.Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
                        ts.Diagnostics.Parameter_0_of_constructor_from_exported_class_has_or_is_using_private_name_1;
                case 154:
                    return symbolAccessibilityResult.errorModuleName ?
                        ts.Diagnostics.Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2 :
                        ts.Diagnostics.Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1;
                case 153:
                    return symbolAccessibilityResult.errorModuleName ?
                        ts.Diagnostics.Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2 :
                        ts.Diagnostics.Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1;
                case 155:
                    return symbolAccessibilityResult.errorModuleName ?
                        ts.Diagnostics.Parameter_0_of_index_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2 :
                        ts.Diagnostics.Parameter_0_of_index_signature_from_exported_interface_has_or_is_using_private_name_1;
                case 149:
                case 148:
                    if (ts.hasModifier(node.parent, 32)) {
                        return symbolAccessibilityResult.errorModuleName ?
                            symbolAccessibilityResult.accessibility === 2 ?
                                ts.Diagnostics.Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
                                ts.Diagnostics.Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
                            ts.Diagnostics.Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1;
                    }
                    else if (node.parent.parent.kind === 226) {
                        return symbolAccessibilityResult.errorModuleName ?
                            symbolAccessibilityResult.accessibility === 2 ?
                                ts.Diagnostics.Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
                                ts.Diagnostics.Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
                            ts.Diagnostics.Parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1;
                    }
                    else {
                        return symbolAccessibilityResult.errorModuleName ?
                            ts.Diagnostics.Parameter_0_of_method_from_exported_interface_has_or_is_using_name_1_from_private_module_2 :
                            ts.Diagnostics.Parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1;
                    }
                case 225:
                    return symbolAccessibilityResult.errorModuleName ?
                        symbolAccessibilityResult.accessibility === 2 ?
                            ts.Diagnostics.Parameter_0_of_exported_function_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
                            ts.Diagnostics.Parameter_0_of_exported_function_has_or_is_using_name_1_from_private_module_2 :
                        ts.Diagnostics.Parameter_0_of_exported_function_has_or_is_using_private_name_1;
                default:
                    ts.Debug.fail("This is unknown parent for parameter: " + node.parent.kind);
            }
        }
        function emitBindingPattern(bindingPattern) {
            if (bindingPattern.kind === 172) {
                write("{");
                emitCommaList(bindingPattern.elements, emitBindingElement);
                write("}");
            }
            else if (bindingPattern.kind === 173) {
                write("[");
                var elements = bindingPattern.elements;
                emitCommaList(elements, emitBindingElement);
                if (elements && elements.hasTrailingComma) {
                    write(", ");
                }
                write("]");
            }
        }
        function emitBindingElement(bindingElement) {
            if (bindingElement.kind === 198) {
                write(" ");
            }
            else if (bindingElement.kind === 174) {
                if (bindingElement.propertyName) {
                    writeTextOfNode(currentText, bindingElement.propertyName);
                    write(": ");
                }
                if (bindingElement.name) {
                    if (ts.isBindingPattern(bindingElement.name)) {
                        emitBindingPattern(bindingElement.name);
                    }
                    else {
                        ts.Debug.assert(bindingElement.name.kind === 70);
                        if (bindingElement.dotDotDotToken) {
                            write("...");
                        }
                        writeTextOfNode(currentText, bindingElement.name);
                    }
                }
            }
        }
    }
    function emitNode(node) {
        switch (node.kind) {
            case 225:
            case 230:
            case 234:
            case 227:
            case 226:
            case 228:
            case 229:
                return emitModuleElement(node, isModuleElementVisible(node));
            case 205:
                return emitModuleElement(node, isVariableStatementVisible(node));
            case 235:
                return emitModuleElement(node, !node.importClause);
            case 241:
                return emitExportDeclaration(node);
            case 150:
            case 149:
            case 148:
                return writeFunctionDeclaration(node);
            case 154:
            case 153:
            case 155:
                return emitSignatureDeclarationWithJsDocComments(node);
            case 151:
            case 152:
                return emitAccessorDeclaration(node);
            case 147:
            case 146:
                return emitPropertyDeclaration(node);
            case 260:
                return emitEnumMemberDeclaration(node);
            case 240:
                return emitExportAssignment(node);
            case 261:
                return emitSourceFile(node);
        }
    }
    function writeReferencePath(referencedFile, addBundledFileReference, emitOnlyDtsFiles) {
        var declFileName;
        var addedBundledEmitReference = false;
        if (ts.isDeclarationFile(referencedFile)) {
            declFileName = referencedFile.fileName;
        }
        else {
            ts.forEachExpectedEmitFile(host, getDeclFileName, referencedFile, emitOnlyDtsFiles);
        }
        if (declFileName) {
            declFileName = ts.getRelativePathToDirectoryOrUrl(ts.getDirectoryPath(ts.normalizeSlashes(declarationFilePath)), declFileName, host.getCurrentDirectory(), host.getCanonicalFileName, false);
            referencesOutput += "/// <reference path=\"" + declFileName + "\" />" + newLine;
        }
        return addedBundledEmitReference;
        function getDeclFileName(emitFileNames, _sourceFiles, isBundledEmit) {
            if (isBundledEmit && !addBundledFileReference) {
                return;
            }
            ts.Debug.assert(!!emitFileNames.declarationFilePath || ts.isSourceFileJavaScript(referencedFile), "Declaration file is not present only for javascript files");
            declFileName = emitFileNames.declarationFilePath || emitFileNames.jsFilePath;
            addedBundledEmitReference = isBundledEmit;
        }
    }
}
function writeDeclarationFile(declarationFilePath, sourceFiles, isBundledEmit, host, resolver, emitterDiagnostics, emitOnlyDtsFiles) {
    var emitDeclarationResult = emitDeclarations(host, resolver, emitterDiagnostics, declarationFilePath, sourceFiles, isBundledEmit, emitOnlyDtsFiles);
    var emitSkipped = emitDeclarationResult.reportedDeclarationError || host.isEmitBlocked(declarationFilePath) || host.getCompilerOptions().noEmit;
    if (!emitSkipped) {
        var declarationOutput = emitDeclarationResult.referencesOutput
            + getDeclarationOutput(emitDeclarationResult.synchronousDeclarationOutput, emitDeclarationResult.moduleElementDeclarationEmitInfo);
        ts.writeFile(host, emitterDiagnostics, declarationFilePath, declarationOutput, host.getCompilerOptions().emitBOM, sourceFiles);
    }
    return emitSkipped;
    function getDeclarationOutput(synchronousDeclarationOutput, moduleElementDeclarationEmitInfo) {
        var appliedSyncOutputPos = 0;
        var declarationOutput = "";
        ts.forEach(moduleElementDeclarationEmitInfo, function (aliasEmitInfo) {
            if (aliasEmitInfo.asynchronousOutput) {
                declarationOutput += synchronousDeclarationOutput.substring(appliedSyncOutputPos, aliasEmitInfo.outputPos);
                declarationOutput += getDeclarationOutput(aliasEmitInfo.asynchronousOutput, aliasEmitInfo.subModuleElementDeclarationEmitInfo);
                appliedSyncOutputPos = aliasEmitInfo.outputPos;
            }
        });
        declarationOutput += synchronousDeclarationOutput.substring(appliedSyncOutputPos);
        return declarationOutput;
    }
}
ts.writeDeclarationFile = writeDeclarationFile;

})(ts || (ts = {})); var ts; (function (ts) {

var id = function (s) { return s; };
var nullTransformers = [function (_) { return id; }];
function emitFiles(resolver, host, targetSourceFile, emitOnlyDtsFiles) {
    var delimiters = createDelimiterMap();
    var brackets = createBracketsMap();
    var compilerOptions = host.getCompilerOptions();
    var languageVersion = ts.getEmitScriptTarget(compilerOptions);
    var moduleKind = ts.getEmitModuleKind(compilerOptions);
    var sourceMapDataList = compilerOptions.sourceMap || compilerOptions.inlineSourceMap ? [] : undefined;
    var emittedFilesList = compilerOptions.listEmittedFiles ? [] : undefined;
    var emitterDiagnostics = ts.createDiagnosticCollection();
    var newLine = host.getNewLine();
    var transformers = emitOnlyDtsFiles ? nullTransformers : ts.getTransformers(compilerOptions);
    var writer = ts.createTextWriter(newLine);
    var write = writer.write, writeLine = writer.writeLine, increaseIndent = writer.increaseIndent, decreaseIndent = writer.decreaseIndent;
    var sourceMap = ts.createSourceMapWriter(host, writer);
    var emitNodeWithSourceMap = sourceMap.emitNodeWithSourceMap, emitTokenWithSourceMap = sourceMap.emitTokenWithSourceMap;
    var comments = ts.createCommentWriter(host, writer, sourceMap);
    var emitNodeWithComments = comments.emitNodeWithComments, emitBodyWithDetachedComments = comments.emitBodyWithDetachedComments, emitTrailingCommentsOfPosition = comments.emitTrailingCommentsOfPosition;
    var nodeIdToGeneratedName;
    var autoGeneratedIdToGeneratedName;
    var generatedNameSet;
    var tempFlags;
    var currentSourceFile;
    var currentText;
    var currentFileIdentifiers;
    var bundledHelpers;
    var isOwnFileEmit;
    var emitSkipped = false;
    var sourceFiles = ts.getSourceFilesToEmit(host, targetSourceFile);
    ts.performance.mark("beforeTransform");
    var _a = ts.transformFiles(resolver, host, sourceFiles, transformers), transformed = _a.transformed, emitNodeWithSubstitution = _a.emitNodeWithSubstitution, emitNodeWithNotification = _a.emitNodeWithNotification;
    ts.performance.measure("transformTime", "beforeTransform");
    ts.performance.mark("beforePrint");
    ts.forEachTransformedEmitFile(host, transformed, emitFile, emitOnlyDtsFiles);
    ts.performance.measure("printTime", "beforePrint");
    for (var _b = 0, sourceFiles_4 = sourceFiles; _b < sourceFiles_4.length; _b++) {
        var sourceFile = sourceFiles_4[_b];
        ts.disposeEmitNodes(sourceFile);
    }
    return {
        emitSkipped: emitSkipped,
        diagnostics: emitterDiagnostics.getDiagnostics(),
        emittedFiles: emittedFilesList,
        sourceMaps: sourceMapDataList
    };
    function emitFile(jsFilePath, sourceMapFilePath, declarationFilePath, sourceFiles, isBundledEmit) {
        if (!host.isEmitBlocked(jsFilePath) && !compilerOptions.noEmit) {
            if (!emitOnlyDtsFiles) {
                printFile(jsFilePath, sourceMapFilePath, sourceFiles, isBundledEmit);
            }
        }
        else {
            emitSkipped = true;
        }
        if (declarationFilePath) {
            emitSkipped = ts.writeDeclarationFile(declarationFilePath, ts.getOriginalSourceFiles(sourceFiles), isBundledEmit, host, resolver, emitterDiagnostics, emitOnlyDtsFiles) || emitSkipped;
        }
        if (!emitSkipped && emittedFilesList) {
            if (!emitOnlyDtsFiles) {
                emittedFilesList.push(jsFilePath);
            }
            if (sourceMapFilePath) {
                emittedFilesList.push(sourceMapFilePath);
            }
            if (declarationFilePath) {
                emittedFilesList.push(declarationFilePath);
            }
        }
    }
    function printFile(jsFilePath, sourceMapFilePath, sourceFiles, isBundledEmit) {
        sourceMap.initialize(jsFilePath, sourceMapFilePath, sourceFiles, isBundledEmit);
        nodeIdToGeneratedName = [];
        autoGeneratedIdToGeneratedName = [];
        generatedNameSet = ts.createMap();
        bundledHelpers = isBundledEmit ? ts.createMap() : undefined;
        isOwnFileEmit = !isBundledEmit;
        if (isBundledEmit && moduleKind) {
            for (var _a = 0, sourceFiles_5 = sourceFiles; _a < sourceFiles_5.length; _a++) {
                var sourceFile = sourceFiles_5[_a];
                emitHelpers(sourceFile, true);
            }
        }
        ts.forEach(sourceFiles, printSourceFile);
        writeLine();
        var sourceMappingURL = sourceMap.getSourceMappingURL();
        if (sourceMappingURL) {
            write("//# " + "sourceMappingURL" + "=" + sourceMappingURL);
        }
        if (compilerOptions.sourceMap && !compilerOptions.inlineSourceMap) {
            ts.writeFile(host, emitterDiagnostics, sourceMapFilePath, sourceMap.getText(), false, sourceFiles);
        }
        if (sourceMapDataList) {
            sourceMapDataList.push(sourceMap.getSourceMapData());
        }
        ts.writeFile(host, emitterDiagnostics, jsFilePath, writer.getText(), compilerOptions.emitBOM, sourceFiles);
        sourceMap.reset();
        comments.reset();
        writer.reset();
        tempFlags = 0;
        currentSourceFile = undefined;
        currentText = undefined;
        isOwnFileEmit = false;
    }
    function printSourceFile(node) {
        currentSourceFile = node;
        currentText = node.text;
        currentFileIdentifiers = node.identifiers;
        sourceMap.setSourceFile(node);
        comments.setSourceFile(node);
        pipelineEmitWithNotification(0, node);
    }
    function emit(node) {
        pipelineEmitWithNotification(3, node);
    }
    function emitIdentifierName(node) {
        pipelineEmitWithNotification(2, node);
    }
    function emitExpression(node) {
        pipelineEmitWithNotification(1, node);
    }
    function pipelineEmitWithNotification(emitContext, node) {
        emitNodeWithNotification(emitContext, node, pipelineEmitWithComments);
    }
    function pipelineEmitWithComments(emitContext, node) {
        if (emitContext === 0) {
            pipelineEmitWithSourceMap(emitContext, node);
            return;
        }
        emitNodeWithComments(emitContext, node, pipelineEmitWithSourceMap);
    }
    function pipelineEmitWithSourceMap(emitContext, node) {
        if (emitContext === 0
            || emitContext === 2) {
            pipelineEmitWithSubstitution(emitContext, node);
            return;
        }
        emitNodeWithSourceMap(emitContext, node, pipelineEmitWithSubstitution);
    }
    function pipelineEmitWithSubstitution(emitContext, node) {
        emitNodeWithSubstitution(emitContext, node, pipelineEmitForContext);
    }
    function pipelineEmitForContext(emitContext, node) {
        switch (emitContext) {
            case 0: return pipelineEmitInSourceFileContext(node);
            case 2: return pipelineEmitInIdentifierNameContext(node);
            case 3: return pipelineEmitInUnspecifiedContext(node);
            case 1: return pipelineEmitInExpressionContext(node);
        }
    }
    function pipelineEmitInSourceFileContext(node) {
        var kind = node.kind;
        switch (kind) {
            case 261:
                return emitSourceFile(node);
        }
    }
    function pipelineEmitInIdentifierNameContext(node) {
        var kind = node.kind;
        switch (kind) {
            case 70:
                return emitIdentifier(node);
        }
    }
    function pipelineEmitInUnspecifiedContext(node) {
        var kind = node.kind;
        switch (kind) {
            case 13:
            case 14:
            case 15:
                return emitLiteral(node);
            case 70:
                return emitIdentifier(node);
            case 75:
            case 78:
            case 83:
            case 104:
            case 111:
            case 112:
            case 113:
            case 114:
            case 116:
            case 117:
            case 118:
            case 119:
            case 120:
            case 121:
            case 122:
            case 123:
            case 124:
            case 125:
            case 127:
            case 128:
            case 129:
            case 130:
            case 131:
            case 132:
            case 133:
            case 134:
            case 135:
            case 136:
            case 137:
            case 138:
            case 139:
            case 140:
                writeTokenText(kind);
                return;
            case 141:
                return emitQualifiedName(node);
            case 142:
                return emitComputedPropertyName(node);
            case 143:
                return emitTypeParameter(node);
            case 144:
                return emitParameter(node);
            case 145:
                return emitDecorator(node);
            case 146:
                return emitPropertySignature(node);
            case 147:
                return emitPropertyDeclaration(node);
            case 148:
                return emitMethodSignature(node);
            case 149:
                return emitMethodDeclaration(node);
            case 150:
                return emitConstructor(node);
            case 151:
            case 152:
                return emitAccessorDeclaration(node);
            case 153:
                return emitCallSignature(node);
            case 154:
                return emitConstructSignature(node);
            case 155:
                return emitIndexSignature(node);
            case 156:
                return emitTypePredicate(node);
            case 157:
                return emitTypeReference(node);
            case 158:
                return emitFunctionType(node);
            case 159:
                return emitConstructorType(node);
            case 160:
                return emitTypeQuery(node);
            case 161:
                return emitTypeLiteral(node);
            case 162:
                return emitArrayType(node);
            case 163:
                return emitTupleType(node);
            case 164:
                return emitUnionType(node);
            case 165:
                return emitIntersectionType(node);
            case 166:
                return emitParenthesizedType(node);
            case 199:
                return emitExpressionWithTypeArguments(node);
            case 167:
                return emitThisType();
            case 168:
                return emitTypeOperator(node);
            case 169:
                return emitIndexedAccessType(node);
            case 170:
                return emitMappedType(node);
            case 171:
                return emitLiteralType(node);
            case 172:
                return emitObjectBindingPattern(node);
            case 173:
                return emitArrayBindingPattern(node);
            case 174:
                return emitBindingElement(node);
            case 202:
                return emitTemplateSpan(node);
            case 203:
                return emitSemicolonClassElement();
            case 204:
                return emitBlock(node);
            case 205:
                return emitVariableStatement(node);
            case 206:
                return emitEmptyStatement();
            case 207:
                return emitExpressionStatement(node);
            case 208:
                return emitIfStatement(node);
            case 209:
                return emitDoStatement(node);
            case 210:
                return emitWhileStatement(node);
            case 211:
                return emitForStatement(node);
            case 212:
                return emitForInStatement(node);
            case 213:
                return emitForOfStatement(node);
            case 214:
                return emitContinueStatement(node);
            case 215:
                return emitBreakStatement(node);
            case 216:
                return emitReturnStatement(node);
            case 217:
                return emitWithStatement(node);
            case 218:
                return emitSwitchStatement(node);
            case 219:
                return emitLabeledStatement(node);
            case 220:
                return emitThrowStatement(node);
            case 221:
                return emitTryStatement(node);
            case 222:
                return emitDebuggerStatement(node);
            case 223:
                return emitVariableDeclaration(node);
            case 224:
                return emitVariableDeclarationList(node);
            case 225:
                return emitFunctionDeclaration(node);
            case 226:
                return emitClassDeclaration(node);
            case 227:
                return emitInterfaceDeclaration(node);
            case 228:
                return emitTypeAliasDeclaration(node);
            case 229:
                return emitEnumDeclaration(node);
            case 230:
                return emitModuleDeclaration(node);
            case 231:
                return emitModuleBlock(node);
            case 232:
                return emitCaseBlock(node);
            case 234:
                return emitImportEqualsDeclaration(node);
            case 235:
                return emitImportDeclaration(node);
            case 236:
                return emitImportClause(node);
            case 237:
                return emitNamespaceImport(node);
            case 238:
                return emitNamedImports(node);
            case 239:
                return emitImportSpecifier(node);
            case 240:
                return emitExportAssignment(node);
            case 241:
                return emitExportDeclaration(node);
            case 242:
                return emitNamedExports(node);
            case 243:
                return emitExportSpecifier(node);
            case 244:
                return;
            case 245:
                return emitExternalModuleReference(node);
            case 10:
                return emitJsxText(node);
            case 248:
                return emitJsxOpeningElement(node);
            case 249:
                return emitJsxClosingElement(node);
            case 250:
                return emitJsxAttribute(node);
            case 251:
                return emitJsxSpreadAttribute(node);
            case 252:
                return emitJsxExpression(node);
            case 253:
                return emitCaseClause(node);
            case 254:
                return emitDefaultClause(node);
            case 255:
                return emitHeritageClause(node);
            case 256:
                return emitCatchClause(node);
            case 257:
                return emitPropertyAssignment(node);
            case 258:
                return emitShorthandPropertyAssignment(node);
            case 259:
                return emitSpreadAssignment(node);
            case 260:
                return emitEnumMember(node);
        }
        if (ts.isExpression(node)) {
            return pipelineEmitWithSubstitution(1, node);
        }
    }
    function pipelineEmitInExpressionContext(node) {
        var kind = node.kind;
        switch (kind) {
            case 8:
                return emitNumericLiteral(node);
            case 9:
            case 11:
            case 12:
                return emitLiteral(node);
            case 70:
                return emitIdentifier(node);
            case 85:
            case 94:
            case 96:
            case 100:
            case 98:
                writeTokenText(kind);
                return;
            case 175:
                return emitArrayLiteralExpression(node);
            case 176:
                return emitObjectLiteralExpression(node);
            case 177:
                return emitPropertyAccessExpression(node);
            case 178:
                return emitElementAccessExpression(node);
            case 179:
                return emitCallExpression(node);
            case 180:
                return emitNewExpression(node);
            case 181:
                return emitTaggedTemplateExpression(node);
            case 182:
                return emitTypeAssertionExpression(node);
            case 183:
                return emitParenthesizedExpression(node);
            case 184:
                return emitFunctionExpression(node);
            case 185:
                return emitArrowFunction(node);
            case 186:
                return emitDeleteExpression(node);
            case 187:
                return emitTypeOfExpression(node);
            case 188:
                return emitVoidExpression(node);
            case 189:
                return emitAwaitExpression(node);
            case 190:
                return emitPrefixUnaryExpression(node);
            case 191:
                return emitPostfixUnaryExpression(node);
            case 192:
                return emitBinaryExpression(node);
            case 193:
                return emitConditionalExpression(node);
            case 194:
                return emitTemplateExpression(node);
            case 195:
                return emitYieldExpression(node);
            case 196:
                return emitSpreadExpression(node);
            case 197:
                return emitClassExpression(node);
            case 198:
                return;
            case 200:
                return emitAsExpression(node);
            case 201:
                return emitNonNullExpression(node);
            case 246:
                return emitJsxElement(node);
            case 247:
                return emitJsxSelfClosingElement(node);
            case 294:
                return emitPartiallyEmittedExpression(node);
        }
    }
    function emitNumericLiteral(node) {
        emitLiteral(node);
        if (node.trailingComment) {
            write(" /*" + node.trailingComment + "*/");
        }
    }
    function emitLiteral(node) {
        var text = getLiteralTextOfNode(node);
        if ((compilerOptions.sourceMap || compilerOptions.inlineSourceMap)
            && (node.kind === 9 || ts.isTemplateLiteralKind(node.kind))) {
            writer.writeLiteral(text);
        }
        else {
            write(text);
        }
    }
    function emitIdentifier(node) {
        write(getTextOfNode(node, false));
    }
    function emitQualifiedName(node) {
        emitEntityName(node.left);
        write(".");
        emit(node.right);
    }
    function emitEntityName(node) {
        if (node.kind === 70) {
            emitExpression(node);
        }
        else {
            emit(node);
        }
    }
    function emitComputedPropertyName(node) {
        write("[");
        emitExpression(node.expression);
        write("]");
    }
    function emitTypeParameter(node) {
        emit(node.name);
        emitWithPrefix(" extends ", node.constraint);
    }
    function emitParameter(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        writeIfPresent(node.dotDotDotToken, "...");
        emit(node.name);
        writeIfPresent(node.questionToken, "?");
        emitExpressionWithPrefix(" = ", node.initializer);
        emitWithPrefix(": ", node.type);
    }
    function emitDecorator(decorator) {
        write("@");
        emitExpression(decorator.expression);
    }
    function emitPropertySignature(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        emit(node.name);
        writeIfPresent(node.questionToken, "?");
        emitWithPrefix(": ", node.type);
        write(";");
    }
    function emitPropertyDeclaration(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        emit(node.name);
        emitWithPrefix(": ", node.type);
        emitExpressionWithPrefix(" = ", node.initializer);
        write(";");
    }
    function emitMethodSignature(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        emit(node.name);
        writeIfPresent(node.questionToken, "?");
        emitTypeParameters(node, node.typeParameters);
        emitParameters(node, node.parameters);
        emitWithPrefix(": ", node.type);
        write(";");
    }
    function emitMethodDeclaration(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        writeIfPresent(node.asteriskToken, "*");
        emit(node.name);
        emitSignatureAndBody(node, emitSignatureHead);
    }
    function emitConstructor(node) {
        emitModifiers(node, node.modifiers);
        write("constructor");
        emitSignatureAndBody(node, emitSignatureHead);
    }
    function emitAccessorDeclaration(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        write(node.kind === 151 ? "get " : "set ");
        emit(node.name);
        emitSignatureAndBody(node, emitSignatureHead);
    }
    function emitCallSignature(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        emitTypeParameters(node, node.typeParameters);
        emitParameters(node, node.parameters);
        emitWithPrefix(": ", node.type);
        write(";");
    }
    function emitConstructSignature(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        write("new ");
        emitTypeParameters(node, node.typeParameters);
        emitParameters(node, node.parameters);
        emitWithPrefix(": ", node.type);
        write(";");
    }
    function emitIndexSignature(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        emitParametersForIndexSignature(node, node.parameters);
        emitWithPrefix(": ", node.type);
        write(";");
    }
    function emitSemicolonClassElement() {
        write(";");
    }
    function emitTypePredicate(node) {
        emit(node.parameterName);
        write(" is ");
        emit(node.type);
    }
    function emitTypeReference(node) {
        emit(node.typeName);
        emitTypeArguments(node, node.typeArguments);
    }
    function emitFunctionType(node) {
        emitTypeParameters(node, node.typeParameters);
        emitParametersForArrow(node, node.parameters);
        write(" => ");
        emit(node.type);
    }
    function emitConstructorType(node) {
        write("new ");
        emitTypeParameters(node, node.typeParameters);
        emitParametersForArrow(node, node.parameters);
        write(" => ");
        emit(node.type);
    }
    function emitTypeQuery(node) {
        write("typeof ");
        emit(node.exprName);
    }
    function emitTypeLiteral(node) {
        write("{");
        emitList(node, node.members, 65);
        write("}");
    }
    function emitArrayType(node) {
        emit(node.elementType);
        write("[]");
    }
    function emitTupleType(node) {
        write("[");
        emitList(node, node.elementTypes, 336);
        write("]");
    }
    function emitUnionType(node) {
        emitList(node, node.types, 260);
    }
    function emitIntersectionType(node) {
        emitList(node, node.types, 264);
    }
    function emitParenthesizedType(node) {
        write("(");
        emit(node.type);
        write(")");
    }
    function emitThisType() {
        write("this");
    }
    function emitTypeOperator(node) {
        writeTokenText(node.operator);
        write(" ");
        emit(node.type);
    }
    function emitIndexedAccessType(node) {
        emit(node.objectType);
        write("[");
        emit(node.indexType);
        write("]");
    }
    function emitMappedType(node) {
        write("{");
        writeLine();
        increaseIndent();
        if (node.readonlyToken) {
            write("readonly ");
        }
        write("[");
        emit(node.typeParameter.name);
        write(" in ");
        emit(node.typeParameter.constraint);
        write("]");
        if (node.questionToken) {
            write("?");
        }
        write(": ");
        emit(node.type);
        write(";");
        writeLine();
        decreaseIndent();
        write("}");
    }
    function emitLiteralType(node) {
        emitExpression(node.literal);
    }
    function emitObjectBindingPattern(node) {
        var elements = node.elements;
        if (elements.length === 0) {
            write("{}");
        }
        else {
            write("{");
            emitList(node, elements, 432);
            write("}");
        }
    }
    function emitArrayBindingPattern(node) {
        var elements = node.elements;
        if (elements.length === 0) {
            write("[]");
        }
        else {
            write("[");
            emitList(node, node.elements, 304);
            write("]");
        }
    }
    function emitBindingElement(node) {
        emitWithSuffix(node.propertyName, ": ");
        writeIfPresent(node.dotDotDotToken, "...");
        emit(node.name);
        emitExpressionWithPrefix(" = ", node.initializer);
    }
    function emitArrayLiteralExpression(node) {
        var elements = node.elements;
        if (elements.length === 0) {
            write("[]");
        }
        else {
            var preferNewLine = node.multiLine ? 32768 : 0;
            emitExpressionList(node, elements, 4466 | preferNewLine);
        }
    }
    function emitObjectLiteralExpression(node) {
        var properties = node.properties;
        if (properties.length === 0) {
            write("{}");
        }
        else {
            var indentedFlag = ts.getEmitFlags(node) & 32768;
            if (indentedFlag) {
                increaseIndent();
            }
            var preferNewLine = node.multiLine ? 32768 : 0;
            var allowTrailingComma = languageVersion >= 1 ? 32 : 0;
            emitList(node, properties, 978 | allowTrailingComma | preferNewLine);
            if (indentedFlag) {
                decreaseIndent();
            }
        }
    }
    function emitPropertyAccessExpression(node) {
        var indentBeforeDot = false;
        var indentAfterDot = false;
        if (!(ts.getEmitFlags(node) & 65536)) {
            var dotRangeStart = node.expression.end;
            var dotRangeEnd = ts.skipTrivia(currentText, node.expression.end) + 1;
            var dotToken = { kind: 22, pos: dotRangeStart, end: dotRangeEnd };
            indentBeforeDot = needsIndentation(node, node.expression, dotToken);
            indentAfterDot = needsIndentation(node, dotToken, node.name);
        }
        emitExpression(node.expression);
        increaseIndentIf(indentBeforeDot);
        var shouldEmitDotDot = !indentBeforeDot && needsDotDotForPropertyAccess(node.expression);
        write(shouldEmitDotDot ? ".." : ".");
        increaseIndentIf(indentAfterDot);
        emit(node.name);
        decreaseIndentIf(indentBeforeDot, indentAfterDot);
    }
    function needsDotDotForPropertyAccess(expression) {
        if (expression.kind === 8) {
            var text = getLiteralTextOfNode(expression);
            return text.indexOf(ts.tokenToString(22)) < 0;
        }
        else if (ts.isPropertyAccessExpression(expression) || ts.isElementAccessExpression(expression)) {
            var constantValue = ts.getConstantValue(expression);
            return isFinite(constantValue)
                && Math.floor(constantValue) === constantValue
                && compilerOptions.removeComments;
        }
    }
    function emitElementAccessExpression(node) {
        emitExpression(node.expression);
        write("[");
        emitExpression(node.argumentExpression);
        write("]");
    }
    function emitCallExpression(node) {
        emitExpression(node.expression);
        emitTypeArguments(node, node.typeArguments);
        emitExpressionList(node, node.arguments, 1296);
    }
    function emitNewExpression(node) {
        write("new ");
        emitExpression(node.expression);
        emitTypeArguments(node, node.typeArguments);
        emitExpressionList(node, node.arguments, 9488);
    }
    function emitTaggedTemplateExpression(node) {
        emitExpression(node.tag);
        write(" ");
        emitExpression(node.template);
    }
    function emitTypeAssertionExpression(node) {
        if (node.type) {
            write("<");
            emit(node.type);
            write(">");
        }
        emitExpression(node.expression);
    }
    function emitParenthesizedExpression(node) {
        write("(");
        emitExpression(node.expression);
        write(")");
    }
    function emitFunctionExpression(node) {
        emitFunctionDeclarationOrExpression(node);
    }
    function emitArrowFunction(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        emitSignatureAndBody(node, emitArrowFunctionHead);
    }
    function emitArrowFunctionHead(node) {
        emitTypeParameters(node, node.typeParameters);
        emitParametersForArrow(node, node.parameters);
        emitWithPrefix(": ", node.type);
        write(" =>");
    }
    function emitDeleteExpression(node) {
        write("delete ");
        emitExpression(node.expression);
    }
    function emitTypeOfExpression(node) {
        write("typeof ");
        emitExpression(node.expression);
    }
    function emitVoidExpression(node) {
        write("void ");
        emitExpression(node.expression);
    }
    function emitAwaitExpression(node) {
        write("await ");
        emitExpression(node.expression);
    }
    function emitPrefixUnaryExpression(node) {
        writeTokenText(node.operator);
        if (shouldEmitWhitespaceBeforeOperand(node)) {
            write(" ");
        }
        emitExpression(node.operand);
    }
    function shouldEmitWhitespaceBeforeOperand(node) {
        var operand = node.operand;
        return operand.kind === 190
            && ((node.operator === 36 && (operand.operator === 36 || operand.operator === 42))
                || (node.operator === 37 && (operand.operator === 37 || operand.operator === 43)));
    }
    function emitPostfixUnaryExpression(node) {
        emitExpression(node.operand);
        writeTokenText(node.operator);
    }
    function emitBinaryExpression(node) {
        var isCommaOperator = node.operatorToken.kind !== 25;
        var indentBeforeOperator = needsIndentation(node, node.left, node.operatorToken);
        var indentAfterOperator = needsIndentation(node, node.operatorToken, node.right);
        emitExpression(node.left);
        increaseIndentIf(indentBeforeOperator, isCommaOperator ? " " : undefined);
        writeTokenText(node.operatorToken.kind);
        increaseIndentIf(indentAfterOperator, " ");
        emitExpression(node.right);
        decreaseIndentIf(indentBeforeOperator, indentAfterOperator);
    }
    function emitConditionalExpression(node) {
        var indentBeforeQuestion = needsIndentation(node, node.condition, node.questionToken);
        var indentAfterQuestion = needsIndentation(node, node.questionToken, node.whenTrue);
        var indentBeforeColon = needsIndentation(node, node.whenTrue, node.colonToken);
        var indentAfterColon = needsIndentation(node, node.colonToken, node.whenFalse);
        emitExpression(node.condition);
        increaseIndentIf(indentBeforeQuestion, " ");
        write("?");
        increaseIndentIf(indentAfterQuestion, " ");
        emitExpression(node.whenTrue);
        decreaseIndentIf(indentBeforeQuestion, indentAfterQuestion);
        increaseIndentIf(indentBeforeColon, " ");
        write(":");
        increaseIndentIf(indentAfterColon, " ");
        emitExpression(node.whenFalse);
        decreaseIndentIf(indentBeforeColon, indentAfterColon);
    }
    function emitTemplateExpression(node) {
        emit(node.head);
        emitList(node, node.templateSpans, 131072);
    }
    function emitYieldExpression(node) {
        write(node.asteriskToken ? "yield*" : "yield");
        emitExpressionWithPrefix(" ", node.expression);
    }
    function emitSpreadExpression(node) {
        write("...");
        emitExpression(node.expression);
    }
    function emitClassExpression(node) {
        emitClassDeclarationOrExpression(node);
    }
    function emitExpressionWithTypeArguments(node) {
        emitExpression(node.expression);
        emitTypeArguments(node, node.typeArguments);
    }
    function emitAsExpression(node) {
        emitExpression(node.expression);
        if (node.type) {
            write(" as ");
            emit(node.type);
        }
    }
    function emitNonNullExpression(node) {
        emitExpression(node.expression);
        write("!");
    }
    function emitTemplateSpan(node) {
        emitExpression(node.expression);
        emit(node.literal);
    }
    function emitBlock(node) {
        if (isSingleLineEmptyBlock(node)) {
            writeToken(16, node.pos, node);
            write(" ");
            writeToken(17, node.statements.end, node);
        }
        else {
            writeToken(16, node.pos, node);
            emitBlockStatements(node);
            writeToken(17, node.statements.end, node);
        }
    }
    function emitBlockStatements(node) {
        if (ts.getEmitFlags(node) & 1) {
            emitList(node, node.statements, 384);
        }
        else {
            emitList(node, node.statements, 65);
        }
    }
    function emitVariableStatement(node) {
        emitModifiers(node, node.modifiers);
        emit(node.declarationList);
        write(";");
    }
    function emitEmptyStatement() {
        write(";");
    }
    function emitExpressionStatement(node) {
        emitExpression(node.expression);
        write(";");
    }
    function emitIfStatement(node) {
        var openParenPos = writeToken(89, node.pos, node);
        write(" ");
        writeToken(18, openParenPos, node);
        emitExpression(node.expression);
        writeToken(19, node.expression.end, node);
        emitEmbeddedStatement(node, node.thenStatement);
        if (node.elseStatement) {
            writeLineOrSpace(node);
            writeToken(81, node.thenStatement.end, node);
            if (node.elseStatement.kind === 208) {
                write(" ");
                emit(node.elseStatement);
            }
            else {
                emitEmbeddedStatement(node, node.elseStatement);
            }
        }
    }
    function emitDoStatement(node) {
        write("do");
        emitEmbeddedStatement(node, node.statement);
        if (ts.isBlock(node.statement)) {
            write(" ");
        }
        else {
            writeLineOrSpace(node);
        }
        write("while (");
        emitExpression(node.expression);
        write(");");
    }
    function emitWhileStatement(node) {
        write("while (");
        emitExpression(node.expression);
        write(")");
        emitEmbeddedStatement(node, node.statement);
    }
    function emitForStatement(node) {
        var openParenPos = writeToken(87, node.pos);
        write(" ");
        writeToken(18, openParenPos, node);
        emitForBinding(node.initializer);
        write(";");
        emitExpressionWithPrefix(" ", node.condition);
        write(";");
        emitExpressionWithPrefix(" ", node.incrementor);
        write(")");
        emitEmbeddedStatement(node, node.statement);
    }
    function emitForInStatement(node) {
        var openParenPos = writeToken(87, node.pos);
        write(" ");
        writeToken(18, openParenPos);
        emitForBinding(node.initializer);
        write(" in ");
        emitExpression(node.expression);
        writeToken(19, node.expression.end);
        emitEmbeddedStatement(node, node.statement);
    }
    function emitForOfStatement(node) {
        var openParenPos = writeToken(87, node.pos);
        write(" ");
        writeToken(18, openParenPos);
        emitForBinding(node.initializer);
        write(" of ");
        emitExpression(node.expression);
        writeToken(19, node.expression.end);
        emitEmbeddedStatement(node, node.statement);
    }
    function emitForBinding(node) {
        if (node !== undefined) {
            if (node.kind === 224) {
                emit(node);
            }
            else {
                emitExpression(node);
            }
        }
    }
    function emitContinueStatement(node) {
        writeToken(76, node.pos);
        emitWithPrefix(" ", node.label);
        write(";");
    }
    function emitBreakStatement(node) {
        writeToken(71, node.pos);
        emitWithPrefix(" ", node.label);
        write(";");
    }
    function emitReturnStatement(node) {
        writeToken(95, node.pos, node);
        emitExpressionWithPrefix(" ", node.expression);
        write(";");
    }
    function emitWithStatement(node) {
        write("with (");
        emitExpression(node.expression);
        write(")");
        emitEmbeddedStatement(node, node.statement);
    }
    function emitSwitchStatement(node) {
        var openParenPos = writeToken(97, node.pos);
        write(" ");
        writeToken(18, openParenPos);
        emitExpression(node.expression);
        writeToken(19, node.expression.end);
        write(" ");
        emit(node.caseBlock);
    }
    function emitLabeledStatement(node) {
        emit(node.label);
        write(": ");
        emit(node.statement);
    }
    function emitThrowStatement(node) {
        write("throw");
        emitExpressionWithPrefix(" ", node.expression);
        write(";");
    }
    function emitTryStatement(node) {
        write("try ");
        emit(node.tryBlock);
        if (node.catchClause) {
            writeLineOrSpace(node);
            emit(node.catchClause);
        }
        if (node.finallyBlock) {
            writeLineOrSpace(node);
            write("finally ");
            emit(node.finallyBlock);
        }
    }
    function emitDebuggerStatement(node) {
        writeToken(77, node.pos);
        write(";");
    }
    function emitVariableDeclaration(node) {
        emit(node.name);
        emitWithPrefix(": ", node.type);
        emitExpressionWithPrefix(" = ", node.initializer);
    }
    function emitVariableDeclarationList(node) {
        write(ts.isLet(node) ? "let " : ts.isConst(node) ? "const " : "var ");
        emitList(node, node.declarations, 272);
    }
    function emitFunctionDeclaration(node) {
        emitFunctionDeclarationOrExpression(node);
    }
    function emitFunctionDeclarationOrExpression(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        write(node.asteriskToken ? "function* " : "function ");
        emitIdentifierName(node.name);
        emitSignatureAndBody(node, emitSignatureHead);
    }
    function emitSignatureAndBody(node, emitSignatureHead) {
        var body = node.body;
        if (body) {
            if (ts.isBlock(body)) {
                var indentedFlag = ts.getEmitFlags(node) & 32768;
                if (indentedFlag) {
                    increaseIndent();
                }
                if (ts.getEmitFlags(node) & 262144) {
                    emitSignatureHead(node);
                    emitBlockFunctionBody(body);
                }
                else {
                    var savedTempFlags = tempFlags;
                    tempFlags = 0;
                    emitSignatureHead(node);
                    emitBlockFunctionBody(body);
                    tempFlags = savedTempFlags;
                }
                if (indentedFlag) {
                    decreaseIndent();
                }
            }
            else {
                emitSignatureHead(node);
                write(" ");
                emitExpression(body);
            }
        }
        else {
            emitSignatureHead(node);
            write(";");
        }
    }
    function emitSignatureHead(node) {
        emitTypeParameters(node, node.typeParameters);
        emitParameters(node, node.parameters);
        emitWithPrefix(": ", node.type);
    }
    function shouldEmitBlockFunctionBodyOnSingleLine(body) {
        if (ts.getEmitFlags(body) & 1) {
            return true;
        }
        if (body.multiLine) {
            return false;
        }
        if (!ts.nodeIsSynthesized(body) && !ts.rangeIsOnSingleLine(body, currentSourceFile)) {
            return false;
        }
        if (shouldWriteLeadingLineTerminator(body, body.statements, 2)
            || shouldWriteClosingLineTerminator(body, body.statements, 2)) {
            return false;
        }
        var previousStatement;
        for (var _a = 0, _b = body.statements; _a < _b.length; _a++) {
            var statement = _b[_a];
            if (shouldWriteSeparatingLineTerminator(previousStatement, statement, 2)) {
                return false;
            }
            previousStatement = statement;
        }
        return true;
    }
    function emitBlockFunctionBody(body) {
        write(" {");
        increaseIndent();
        emitBodyWithDetachedComments(body, body.statements, shouldEmitBlockFunctionBodyOnSingleLine(body)
            ? emitBlockFunctionBodyOnSingleLine
            : emitBlockFunctionBodyWorker);
        decreaseIndent();
        writeToken(17, body.statements.end, body);
    }
    function emitBlockFunctionBodyOnSingleLine(body) {
        emitBlockFunctionBodyWorker(body, true);
    }
    function emitBlockFunctionBodyWorker(body, emitBlockFunctionBodyOnSingleLine) {
        var statementOffset = emitPrologueDirectives(body.statements, true);
        var helpersEmitted = emitHelpers(body);
        if (statementOffset === 0 && !helpersEmitted && emitBlockFunctionBodyOnSingleLine) {
            decreaseIndent();
            emitList(body, body.statements, 384);
            increaseIndent();
        }
        else {
            emitList(body, body.statements, 1, statementOffset);
        }
    }
    function emitClassDeclaration(node) {
        emitClassDeclarationOrExpression(node);
    }
    function emitClassDeclarationOrExpression(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        write("class");
        emitNodeWithPrefix(" ", node.name, emitIdentifierName);
        var indentedFlag = ts.getEmitFlags(node) & 32768;
        if (indentedFlag) {
            increaseIndent();
        }
        emitTypeParameters(node, node.typeParameters);
        emitList(node, node.heritageClauses, 256);
        var savedTempFlags = tempFlags;
        tempFlags = 0;
        write(" {");
        emitList(node, node.members, 65);
        write("}");
        if (indentedFlag) {
            decreaseIndent();
        }
        tempFlags = savedTempFlags;
    }
    function emitInterfaceDeclaration(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        write("interface ");
        emit(node.name);
        emitTypeParameters(node, node.typeParameters);
        emitList(node, node.heritageClauses, 256);
        write(" {");
        emitList(node, node.members, 65);
        write("}");
    }
    function emitTypeAliasDeclaration(node) {
        emitDecorators(node, node.decorators);
        emitModifiers(node, node.modifiers);
        write("type ");
        emit(node.name);
        emitTypeParameters(node, node.typeParameters);
        write(" = ");
        emit(node.type);
        write(";");
    }
    function emitEnumDeclaration(node) {
        emitModifiers(node, node.modifiers);
        write("enum ");
        emit(node.name);
        var savedTempFlags = tempFlags;
        tempFlags = 0;
        write(" {");
        emitList(node, node.members, 81);
        write("}");
        tempFlags = savedTempFlags;
    }
    function emitModuleDeclaration(node) {
        emitModifiers(node, node.modifiers);
        write(node.flags & 16 ? "namespace " : "module ");
        emit(node.name);
        var body = node.body;
        while (body.kind === 230) {
            write(".");
            emit(body.name);
            body = body.body;
        }
        write(" ");
        emit(body);
    }
    function emitModuleBlock(node) {
        if (isEmptyBlock(node)) {
            write("{ }");
        }
        else {
            var savedTempFlags = tempFlags;
            tempFlags = 0;
            write("{");
            increaseIndent();
            emitBlockStatements(node);
            write("}");
            tempFlags = savedTempFlags;
        }
    }
    function emitCaseBlock(node) {
        writeToken(16, node.pos);
        emitList(node, node.clauses, 65);
        writeToken(17, node.clauses.end);
    }
    function emitImportEqualsDeclaration(node) {
        emitModifiers(node, node.modifiers);
        write("import ");
        emit(node.name);
        write(" = ");
        emitModuleReference(node.moduleReference);
        write(";");
    }
    function emitModuleReference(node) {
        if (node.kind === 70) {
            emitExpression(node);
        }
        else {
            emit(node);
        }
    }
    function emitImportDeclaration(node) {
        emitModifiers(node, node.modifiers);
        write("import ");
        if (node.importClause) {
            emit(node.importClause);
            write(" from ");
        }
        emitExpression(node.moduleSpecifier);
        write(";");
    }
    function emitImportClause(node) {
        emit(node.name);
        if (node.name && node.namedBindings) {
            write(", ");
        }
        emit(node.namedBindings);
    }
    function emitNamespaceImport(node) {
        write("* as ");
        emit(node.name);
    }
    function emitNamedImports(node) {
        emitNamedImportsOrExports(node);
    }
    function emitImportSpecifier(node) {
        emitImportOrExportSpecifier(node);
    }
    function emitExportAssignment(node) {
        write(node.isExportEquals ? "export = " : "export default ");
        emitExpression(node.expression);
        write(";");
    }
    function emitExportDeclaration(node) {
        write("export ");
        if (node.exportClause) {
            emit(node.exportClause);
        }
        else {
            write("*");
        }
        if (node.moduleSpecifier) {
            write(" from ");
            emitExpression(node.moduleSpecifier);
        }
        write(";");
    }
    function emitNamedExports(node) {
        emitNamedImportsOrExports(node);
    }
    function emitExportSpecifier(node) {
        emitImportOrExportSpecifier(node);
    }
    function emitNamedImportsOrExports(node) {
        write("{");
        emitList(node, node.elements, 432);
        write("}");
    }
    function emitImportOrExportSpecifier(node) {
        if (node.propertyName) {
            emit(node.propertyName);
            write(" as ");
        }
        emit(node.name);
    }
    function emitExternalModuleReference(node) {
        write("require(");
        emitExpression(node.expression);
        write(")");
    }
    function emitJsxElement(node) {
        emit(node.openingElement);
        emitList(node, node.children, 131072);
        emit(node.closingElement);
    }
    function emitJsxSelfClosingElement(node) {
        write("<");
        emitJsxTagName(node.tagName);
        write(" ");
        emitList(node, node.attributes, 131328);
        write("/>");
    }
    function emitJsxOpeningElement(node) {
        write("<");
        emitJsxTagName(node.tagName);
        writeIfAny(node.attributes, " ");
        emitList(node, node.attributes, 131328);
        write(">");
    }
    function emitJsxText(node) {
        writer.writeLiteral(getTextOfNode(node, true));
    }
    function emitJsxClosingElement(node) {
        write("</");
        emitJsxTagName(node.tagName);
        write(">");
    }
    function emitJsxAttribute(node) {
        emit(node.name);
        emitWithPrefix("=", node.initializer);
    }
    function emitJsxSpreadAttribute(node) {
        write("{...");
        emitExpression(node.expression);
        write("}");
    }
    function emitJsxExpression(node) {
        if (node.expression) {
            write("{");
            emitExpression(node.expression);
            write("}");
        }
    }
    function emitJsxTagName(node) {
        if (node.kind === 70) {
            emitExpression(node);
        }
        else {
            emit(node);
        }
    }
    function emitCaseClause(node) {
        write("case ");
        emitExpression(node.expression);
        write(":");
        emitCaseOrDefaultClauseStatements(node, node.statements);
    }
    function emitDefaultClause(node) {
        write("default:");
        emitCaseOrDefaultClauseStatements(node, node.statements);
    }
    function emitCaseOrDefaultClauseStatements(parentNode, statements) {
        var emitAsSingleStatement = statements.length === 1 &&
            (ts.nodeIsSynthesized(parentNode) ||
                ts.nodeIsSynthesized(statements[0]) ||
                ts.rangeStartPositionsAreOnSameLine(parentNode, statements[0], currentSourceFile));
        if (emitAsSingleStatement) {
            write(" ");
            emit(statements[0]);
        }
        else {
            emitList(parentNode, statements, 81985);
        }
    }
    function emitHeritageClause(node) {
        write(" ");
        writeTokenText(node.token);
        write(" ");
        emitList(node, node.types, 272);
    }
    function emitCatchClause(node) {
        writeLine();
        var openParenPos = writeToken(73, node.pos);
        write(" ");
        writeToken(18, openParenPos);
        emit(node.variableDeclaration);
        writeToken(19, node.variableDeclaration ? node.variableDeclaration.end : openParenPos);
        write(" ");
        emit(node.block);
    }
    function emitPropertyAssignment(node) {
        emit(node.name);
        write(": ");
        var initializer = node.initializer;
        if ((ts.getEmitFlags(initializer) & 512) === 0) {
            var commentRange = ts.getCommentRange(initializer);
            emitTrailingCommentsOfPosition(commentRange.pos);
        }
        emitExpression(initializer);
    }
    function emitShorthandPropertyAssignment(node) {
        emit(node.name);
        if (node.objectAssignmentInitializer) {
            write(" = ");
            emitExpression(node.objectAssignmentInitializer);
        }
    }
    function emitSpreadAssignment(node) {
        if (node.expression) {
            write("...");
            emitExpression(node.expression);
        }
    }
    function emitEnumMember(node) {
        emit(node.name);
        emitExpressionWithPrefix(" = ", node.initializer);
    }
    function emitSourceFile(node) {
        writeLine();
        emitShebang();
        emitBodyWithDetachedComments(node, node.statements, emitSourceFileWorker);
    }
    function emitSourceFileWorker(node) {
        var statements = node.statements;
        var statementOffset = emitPrologueDirectives(statements);
        var savedTempFlags = tempFlags;
        tempFlags = 0;
        emitHelpers(node);
        emitList(node, statements, 1, statementOffset);
        tempFlags = savedTempFlags;
    }
    function emitPartiallyEmittedExpression(node) {
        emitExpression(node.expression);
    }
    function emitPrologueDirectives(statements, startWithNewLine) {
        for (var i = 0; i < statements.length; i++) {
            if (ts.isPrologueDirective(statements[i])) {
                if (startWithNewLine || i > 0) {
                    writeLine();
                }
                emit(statements[i]);
            }
            else {
                return i;
            }
        }
        return statements.length;
    }
    function emitHelpers(node, isBundle) {
        var sourceFile = ts.isSourceFile(node) ? node : currentSourceFile;
        var shouldSkip = compilerOptions.noEmitHelpers || (sourceFile && ts.getExternalHelpersModuleName(sourceFile) !== undefined);
        var shouldBundle = ts.isSourceFile(node) && !isOwnFileEmit;
        var helpersEmitted = false;
        var helpers = ts.getEmitHelpers(node);
        if (helpers) {
            for (var _a = 0, _b = ts.stableSort(helpers, ts.compareEmitHelpers); _a < _b.length; _a++) {
                var helper = _b[_a];
                if (!helper.scoped) {
                    if (shouldSkip)
                        continue;
                    if (shouldBundle) {
                        if (bundledHelpers[helper.name]) {
                            continue;
                        }
                        bundledHelpers[helper.name] = true;
                    }
                }
                else if (isBundle) {
                    continue;
                }
                writeLines(helper.text);
                helpersEmitted = true;
            }
        }
        if (helpersEmitted) {
            writeLine();
        }
        return helpersEmitted;
    }
    function writeLines(text) {
        var lines = text.split(/\r\n?|\n/g);
        var indentation = guessIndentation(lines);
        for (var i = 0; i < lines.length; i++) {
            var line = indentation ? lines[i].slice(indentation) : lines[i];
            if (line.length) {
                if (i > 0) {
                    writeLine();
                }
                write(line);
            }
        }
    }
    function guessIndentation(lines) {
        var indentation;
        for (var _a = 0, lines_1 = lines; _a < lines_1.length; _a++) {
            var line = lines_1[_a];
            for (var i = 0; i < line.length && (indentation === undefined || i < indentation); i++) {
                if (!ts.isWhiteSpace(line.charCodeAt(i))) {
                    if (indentation === undefined || i < indentation) {
                        indentation = i;
                        break;
                    }
                }
            }
        }
        return indentation;
    }
    function emitShebang() {
        var shebang = ts.getShebang(currentText);
        if (shebang) {
            write(shebang);
            writeLine();
        }
    }
    function emitModifiers(node, modifiers) {
        if (modifiers && modifiers.length) {
            emitList(node, modifiers, 256);
            write(" ");
        }
    }
    function emitWithPrefix(prefix, node) {
        emitNodeWithPrefix(prefix, node, emit);
    }
    function emitExpressionWithPrefix(prefix, node) {
        emitNodeWithPrefix(prefix, node, emitExpression);
    }
    function emitNodeWithPrefix(prefix, node, emit) {
        if (node) {
            write(prefix);
            emit(node);
        }
    }
    function emitWithSuffix(node, suffix) {
        if (node) {
            emit(node);
            write(suffix);
        }
    }
    function emitEmbeddedStatement(parent, node) {
        if (ts.isBlock(node) || ts.getEmitFlags(parent) & 1) {
            write(" ");
            emit(node);
        }
        else {
            writeLine();
            increaseIndent();
            emit(node);
            decreaseIndent();
        }
    }
    function emitDecorators(parentNode, decorators) {
        emitList(parentNode, decorators, 24577);
    }
    function emitTypeArguments(parentNode, typeArguments) {
        emitList(parentNode, typeArguments, 26960);
    }
    function emitTypeParameters(parentNode, typeParameters) {
        emitList(parentNode, typeParameters, 26960);
    }
    function emitParameters(parentNode, parameters) {
        emitList(parentNode, parameters, 1360);
    }
    function emitParametersForArrow(parentNode, parameters) {
        if (parameters &&
            parameters.length === 1 &&
            parameters[0].type === undefined &&
            parameters[0].pos === parentNode.pos) {
            emit(parameters[0]);
        }
        else {
            emitParameters(parentNode, parameters);
        }
    }
    function emitParametersForIndexSignature(parentNode, parameters) {
        emitList(parentNode, parameters, 4432);
    }
    function emitList(parentNode, children, format, start, count) {
        emitNodeList(emit, parentNode, children, format, start, count);
    }
    function emitExpressionList(parentNode, children, format, start, count) {
        emitNodeList(emitExpression, parentNode, children, format, start, count);
    }
    function emitNodeList(emit, parentNode, children, format, start, count) {
        if (start === void 0) { start = 0; }
        if (count === void 0) { count = children ? children.length - start : 0; }
        var isUndefined = children === undefined;
        if (isUndefined && format & 8192) {
            return;
        }
        var isEmpty = isUndefined || children.length === 0 || start >= children.length || count === 0;
        if (isEmpty && format & 16384) {
            return;
        }
        if (format & 7680) {
            write(getOpeningBracket(format));
        }
        if (isEmpty) {
            if (format & 1) {
                writeLine();
            }
            else if (format & 128) {
                write(" ");
            }
        }
        else {
            var mayEmitInterveningComments = (format & 131072) === 0;
            var shouldEmitInterveningComments = mayEmitInterveningComments;
            if (shouldWriteLeadingLineTerminator(parentNode, children, format)) {
                writeLine();
                shouldEmitInterveningComments = false;
            }
            else if (format & 128) {
                write(" ");
            }
            if (format & 64) {
                increaseIndent();
            }
            var previousSibling = void 0;
            var shouldDecreaseIndentAfterEmit = void 0;
            var delimiter = getDelimiter(format);
            for (var i = 0; i < count; i++) {
                var child = children[start + i];
                if (previousSibling) {
                    write(delimiter);
                    if (shouldWriteSeparatingLineTerminator(previousSibling, child, format)) {
                        if ((format & (3 | 64)) === 0) {
                            increaseIndent();
                            shouldDecreaseIndentAfterEmit = true;
                        }
                        writeLine();
                        shouldEmitInterveningComments = false;
                    }
                    else if (previousSibling && format & 256) {
                        write(" ");
                    }
                }
                if (shouldEmitInterveningComments) {
                    var commentRange = ts.getCommentRange(child);
                    emitTrailingCommentsOfPosition(commentRange.pos);
                }
                else {
                    shouldEmitInterveningComments = mayEmitInterveningComments;
                }
                emit(child);
                if (shouldDecreaseIndentAfterEmit) {
                    decreaseIndent();
                    shouldDecreaseIndentAfterEmit = false;
                }
                previousSibling = child;
            }
            var hasTrailingComma = (format & 32) && children.hasTrailingComma;
            if (format & 16 && hasTrailingComma) {
                write(",");
            }
            if (format & 64) {
                decreaseIndent();
            }
            if (shouldWriteClosingLineTerminator(parentNode, children, format)) {
                writeLine();
            }
            else if (format & 128) {
                write(" ");
            }
        }
        if (format & 7680) {
            write(getClosingBracket(format));
        }
    }
    function writeLineOrSpace(node) {
        if (ts.getEmitFlags(node) & 1) {
            write(" ");
        }
        else {
            writeLine();
        }
    }
    function writeIfAny(nodes, text) {
        if (nodes && nodes.length > 0) {
            write(text);
        }
    }
    function writeIfPresent(node, text) {
        if (node !== undefined) {
            write(text);
        }
    }
    function writeToken(token, pos, contextNode) {
        return emitTokenWithSourceMap(contextNode, token, pos, writeTokenText);
    }
    function writeTokenText(token, pos) {
        var tokenString = ts.tokenToString(token);
        write(tokenString);
        return pos < 0 ? pos : pos + tokenString.length;
    }
    function increaseIndentIf(value, valueToWriteWhenNotIndenting) {
        if (value) {
            increaseIndent();
            writeLine();
        }
        else if (valueToWriteWhenNotIndenting) {
            write(valueToWriteWhenNotIndenting);
        }
    }
    function decreaseIndentIf(value1, value2) {
        if (value1) {
            decreaseIndent();
        }
        if (value2) {
            decreaseIndent();
        }
    }
    function shouldWriteLeadingLineTerminator(parentNode, children, format) {
        if (format & 1) {
            return true;
        }
        if (format & 2) {
            if (format & 32768) {
                return true;
            }
            var firstChild = children[0];
            if (firstChild === undefined) {
                return !ts.rangeIsOnSingleLine(parentNode, currentSourceFile);
            }
            else if (ts.positionIsSynthesized(parentNode.pos) || ts.nodeIsSynthesized(firstChild)) {
                return synthesizedNodeStartsOnNewLine(firstChild, format);
            }
            else {
                return !ts.rangeStartPositionsAreOnSameLine(parentNode, firstChild, currentSourceFile);
            }
        }
        else {
            return false;
        }
    }
    function shouldWriteSeparatingLineTerminator(previousNode, nextNode, format) {
        if (format & 1) {
            return true;
        }
        else if (format & 2) {
            if (previousNode === undefined || nextNode === undefined) {
                return false;
            }
            else if (ts.nodeIsSynthesized(previousNode) || ts.nodeIsSynthesized(nextNode)) {
                return synthesizedNodeStartsOnNewLine(previousNode, format) || synthesizedNodeStartsOnNewLine(nextNode, format);
            }
            else {
                return !ts.rangeEndIsOnSameLineAsRangeStart(previousNode, nextNode, currentSourceFile);
            }
        }
        else {
            return nextNode.startsOnNewLine;
        }
    }
    function shouldWriteClosingLineTerminator(parentNode, children, format) {
        if (format & 1) {
            return (format & 65536) === 0;
        }
        else if (format & 2) {
            if (format & 32768) {
                return true;
            }
            var lastChild = ts.lastOrUndefined(children);
            if (lastChild === undefined) {
                return !ts.rangeIsOnSingleLine(parentNode, currentSourceFile);
            }
            else if (ts.positionIsSynthesized(parentNode.pos) || ts.nodeIsSynthesized(lastChild)) {
                return synthesizedNodeStartsOnNewLine(lastChild, format);
            }
            else {
                return !ts.rangeEndPositionsAreOnSameLine(parentNode, lastChild, currentSourceFile);
            }
        }
        else {
            return false;
        }
    }
    function synthesizedNodeStartsOnNewLine(node, format) {
        if (ts.nodeIsSynthesized(node)) {
            var startsOnNewLine = node.startsOnNewLine;
            if (startsOnNewLine === undefined) {
                return (format & 32768) !== 0;
            }
            return startsOnNewLine;
        }
        return (format & 32768) !== 0;
    }
    function needsIndentation(parent, node1, node2) {
        parent = skipSynthesizedParentheses(parent);
        node1 = skipSynthesizedParentheses(node1);
        node2 = skipSynthesizedParentheses(node2);
        if (node2.startsOnNewLine) {
            return true;
        }
        return !ts.nodeIsSynthesized(parent)
            && !ts.nodeIsSynthesized(node1)
            && !ts.nodeIsSynthesized(node2)
            && !ts.rangeEndIsOnSameLineAsRangeStart(node1, node2, currentSourceFile);
    }
    function skipSynthesizedParentheses(node) {
        while (node.kind === 183 && ts.nodeIsSynthesized(node)) {
            node = node.expression;
        }
        return node;
    }
    function getTextOfNode(node, includeTrivia) {
        if (ts.isGeneratedIdentifier(node)) {
            return getGeneratedIdentifier(node);
        }
        else if (ts.isIdentifier(node) && (ts.nodeIsSynthesized(node) || !node.parent)) {
            return ts.unescapeIdentifier(node.text);
        }
        else if (node.kind === 9 && node.textSourceNode) {
            return getTextOfNode(node.textSourceNode, includeTrivia);
        }
        else if (ts.isLiteralExpression(node) && (ts.nodeIsSynthesized(node) || !node.parent)) {
            return node.text;
        }
        return ts.getSourceTextOfNodeFromSourceFile(currentSourceFile, node, includeTrivia);
    }
    function getLiteralTextOfNode(node) {
        if (node.kind === 9 && node.textSourceNode) {
            var textSourceNode = node.textSourceNode;
            if (ts.isIdentifier(textSourceNode)) {
                return "\"" + ts.escapeNonAsciiCharacters(ts.escapeString(getTextOfNode(textSourceNode))) + "\"";
            }
            else {
                return getLiteralTextOfNode(textSourceNode);
            }
        }
        return ts.getLiteralText(node, currentSourceFile, languageVersion);
    }
    function isSingleLineEmptyBlock(block) {
        return !block.multiLine
            && isEmptyBlock(block);
    }
    function isEmptyBlock(block) {
        return block.statements.length === 0
            && ts.rangeEndIsOnSameLineAsRangeStart(block, block, currentSourceFile);
    }
    function isUniqueName(name) {
        return !resolver.hasGlobalName(name) &&
            !ts.hasProperty(currentFileIdentifiers, name) &&
            !ts.hasProperty(generatedNameSet, name);
    }
    function isUniqueLocalName(name, container) {
        for (var node = container; ts.isNodeDescendantOf(node, container); node = node.nextContainer) {
            if (node.locals && ts.hasProperty(node.locals, name)) {
                if (node.locals[name].flags & (107455 | 1048576 | 8388608)) {
                    return false;
                }
            }
        }
        return true;
    }
    function makeTempVariableName(flags) {
        if (flags && !(tempFlags & flags)) {
            var name_41 = flags === 268435456 ? "_i" : "_n";
            if (isUniqueName(name_41)) {
                tempFlags |= flags;
                return name_41;
            }
        }
        while (true) {
            var count = tempFlags & 268435455;
            tempFlags++;
            if (count !== 8 && count !== 13) {
                var name_42 = count < 26
                    ? "_" + String.fromCharCode(97 + count)
                    : "_" + (count - 26);
                if (isUniqueName(name_42)) {
                    return name_42;
                }
            }
        }
    }
    function makeUniqueName(baseName) {
        if (baseName.charCodeAt(baseName.length - 1) !== 95) {
            baseName += "_";
        }
        var i = 1;
        while (true) {
            var generatedName = baseName + i;
            if (isUniqueName(generatedName)) {
                return generatedNameSet[generatedName] = generatedName;
            }
            i++;
        }
    }
    function generateNameForModuleOrEnum(node) {
        var name = getTextOfNode(node.name);
        return isUniqueLocalName(name, node) ? name : makeUniqueName(name);
    }
    function generateNameForImportOrExportDeclaration(node) {
        var expr = ts.getExternalModuleName(node);
        var baseName = expr.kind === 9 ?
            ts.escapeIdentifier(ts.makeIdentifierFromModuleName(expr.text)) : "module";
        return makeUniqueName(baseName);
    }
    function generateNameForExportDefault() {
        return makeUniqueName("default");
    }
    function generateNameForClassExpression() {
        return makeUniqueName("class");
    }
    function generateNameForNode(node) {
        switch (node.kind) {
            case 70:
                return makeUniqueName(getTextOfNode(node));
            case 230:
            case 229:
                return generateNameForModuleOrEnum(node);
            case 235:
            case 241:
                return generateNameForImportOrExportDeclaration(node);
            case 225:
            case 226:
            case 240:
                return generateNameForExportDefault();
            case 197:
                return generateNameForClassExpression();
            default:
                return makeTempVariableName(0);
        }
    }
    function generateName(name) {
        switch (name.autoGenerateKind) {
            case 1:
                return makeTempVariableName(0);
            case 2:
                return makeTempVariableName(268435456);
            case 3:
                return makeUniqueName(name.text);
        }
        ts.Debug.fail("Unsupported GeneratedIdentifierKind.");
    }
    function getNodeForGeneratedName(name) {
        var autoGenerateId = name.autoGenerateId;
        var node = name;
        var original = node.original;
        while (original) {
            node = original;
            if (ts.isIdentifier(node)
                && node.autoGenerateKind === 4
                && node.autoGenerateId !== autoGenerateId) {
                break;
            }
            original = node.original;
        }
        return node;
    }
    function getGeneratedIdentifier(name) {
        if (name.autoGenerateKind === 4) {
            var node = getNodeForGeneratedName(name);
            var nodeId = ts.getNodeId(node);
            return nodeIdToGeneratedName[nodeId] || (nodeIdToGeneratedName[nodeId] = ts.unescapeIdentifier(generateNameForNode(node)));
        }
        else {
            var autoGenerateId = name.autoGenerateId;
            return autoGeneratedIdToGeneratedName[autoGenerateId] || (autoGeneratedIdToGeneratedName[autoGenerateId] = ts.unescapeIdentifier(generateName(name)));
        }
    }
    function createDelimiterMap() {
        var delimiters = [];
        delimiters[0] = "";
        delimiters[16] = ",";
        delimiters[4] = " |";
        delimiters[8] = " &";
        return delimiters;
    }
    function getDelimiter(format) {
        return delimiters[format & 28];
    }
    function createBracketsMap() {
        var brackets = [];
        brackets[512] = ["{", "}"];
        brackets[1024] = ["(", ")"];
        brackets[2048] = ["<", ">"];
        brackets[4096] = ["[", "]"];
        return brackets;
    }
    function getOpeningBracket(format) {
        return brackets[format & 7680][0];
    }
    function getClosingBracket(format) {
        return brackets[format & 7680][1];
    }
}
ts.emitFiles = emitFiles;

})(ts || (ts = {})); var ts; (function (ts) {

var emptyArray = [];
function findConfigFile(searchPath, fileExists, configName) {
    if (configName === void 0) { configName = "tsconfig.json"; }
    while (true) {
        var fileName = ts.combinePaths(searchPath, configName);
        if (fileExists(fileName)) {
            return fileName;
        }
        var parentPath = ts.getDirectoryPath(searchPath);
        if (parentPath === searchPath) {
            break;
        }
        searchPath = parentPath;
    }
    return undefined;
}
ts.findConfigFile = findConfigFile;
function resolveTripleslashReference(moduleName, containingFile) {
    var basePath = ts.getDirectoryPath(containingFile);
    var referencedFileName = ts.isRootedDiskPath(moduleName) ? moduleName : ts.combinePaths(basePath, moduleName);
    return ts.normalizePath(referencedFileName);
}
ts.resolveTripleslashReference = resolveTripleslashReference;
function computeCommonSourceDirectoryOfFilenames(fileNames, currentDirectory, getCanonicalFileName) {
    var commonPathComponents;
    var failed = ts.forEach(fileNames, function (sourceFile) {
        var sourcePathComponents = ts.getNormalizedPathComponents(sourceFile, currentDirectory);
        sourcePathComponents.pop();
        if (!commonPathComponents) {
            commonPathComponents = sourcePathComponents;
            return;
        }
        for (var i = 0, n = Math.min(commonPathComponents.length, sourcePathComponents.length); i < n; i++) {
            if (getCanonicalFileName(commonPathComponents[i]) !== getCanonicalFileName(sourcePathComponents[i])) {
                if (i === 0) {
                    return true;
                }
                commonPathComponents.length = i;
                break;
            }
        }
        if (sourcePathComponents.length < commonPathComponents.length) {
            commonPathComponents.length = sourcePathComponents.length;
        }
    });
    if (failed) {
        return "";
    }
    if (!commonPathComponents) {
        return currentDirectory;
    }
    return ts.getNormalizedPathFromPathComponents(commonPathComponents);
}
ts.computeCommonSourceDirectoryOfFilenames = computeCommonSourceDirectoryOfFilenames;
function createCompilerHost(options, setParentNodes) {
    var existingDirectories = ts.createMap();
    function getCanonicalFileName(fileName) {
        return ts.sys.useCaseSensitiveFileNames ? fileName : fileName.toLowerCase();
    }
    var unsupportedFileEncodingErrorCode = -2147024809;
    function getSourceFile(fileName, languageVersion, onError) {
        var text;
        try {
            ts.performance.mark("beforeIORead");
            text = ts.sys.readFile(fileName, options.charset);
            ts.performance.mark("afterIORead");
            ts.performance.measure("I/O Read", "beforeIORead", "afterIORead");
        }
        catch (e) {
            if (onError) {
                onError(e.number === unsupportedFileEncodingErrorCode
                    ? ts.createCompilerDiagnostic(ts.Diagnostics.Unsupported_file_encoding).messageText
                    : e.message);
            }
            text = "";
        }
        return text !== undefined ? ts.createSourceFile(fileName, text, languageVersion, setParentNodes) : undefined;
    }
    function directoryExists(directoryPath) {
        if (directoryPath in existingDirectories) {
            return true;
        }
        if (ts.sys.directoryExists(directoryPath)) {
            existingDirectories[directoryPath] = true;
            return true;
        }
        return false;
    }
    function ensureDirectoriesExist(directoryPath) {
        if (directoryPath.length > ts.getRootLength(directoryPath) && !directoryExists(directoryPath)) {
            var parentDirectory = ts.getDirectoryPath(directoryPath);
            ensureDirectoriesExist(parentDirectory);
            ts.sys.createDirectory(directoryPath);
        }
    }
    var outputFingerprints;
    function writeFileIfUpdated(fileName, data, writeByteOrderMark) {
        if (!outputFingerprints) {
            outputFingerprints = ts.createMap();
        }
        var hash = ts.sys.createHash(data);
        var mtimeBefore = ts.sys.getModifiedTime(fileName);
        if (mtimeBefore && fileName in outputFingerprints) {
            var fingerprint = outputFingerprints[fileName];
            if (fingerprint.byteOrderMark === writeByteOrderMark &&
                fingerprint.hash === hash &&
                fingerprint.mtime.getTime() === mtimeBefore.getTime()) {
                return;
            }
        }
        ts.sys.writeFile(fileName, data, writeByteOrderMark);
        var mtimeAfter = ts.sys.getModifiedTime(fileName);
        outputFingerprints[fileName] = {
            hash: hash,
            byteOrderMark: writeByteOrderMark,
            mtime: mtimeAfter
        };
    }
    function writeFile(fileName, data, writeByteOrderMark, onError) {
        try {
            ts.performance.mark("beforeIOWrite");
            ensureDirectoriesExist(ts.getDirectoryPath(ts.normalizePath(fileName)));
            if (ts.isWatchSet(options) && ts.sys.createHash && ts.sys.getModifiedTime) {
                writeFileIfUpdated(fileName, data, writeByteOrderMark);
            }
            else {
                ts.sys.writeFile(fileName, data, writeByteOrderMark);
            }
            ts.performance.mark("afterIOWrite");
            ts.performance.measure("I/O Write", "beforeIOWrite", "afterIOWrite");
        }
        catch (e) {
            if (onError) {
                onError(e.message);
            }
        }
    }
    function getDefaultLibLocation() {
        return ts.getDirectoryPath(ts.normalizePath(ts.sys.getExecutingFilePath()));
    }
    var newLine = ts.getNewLineCharacter(options);
    var realpath = ts.sys.realpath && (function (path) { return ts.sys.realpath(path); });
    return {
        getSourceFile: getSourceFile,
        getDefaultLibLocation: getDefaultLibLocation,
        getDefaultLibFileName: function (options) { return ts.combinePaths(getDefaultLibLocation(), ts.getDefaultLibFileName(options)); },
        writeFile: writeFile,
        getCurrentDirectory: ts.memoize(function () { return ts.sys.getCurrentDirectory(); }),
        useCaseSensitiveFileNames: function () { return ts.sys.useCaseSensitiveFileNames; },
        getCanonicalFileName: getCanonicalFileName,
        getNewLine: function () { return newLine; },
        fileExists: function (fileName) { return ts.sys.fileExists(fileName); },
        readFile: function (fileName) { return ts.sys.readFile(fileName); },
        trace: function (s) { return ts.sys.write(s + newLine); },
        directoryExists: function (directoryName) { return ts.sys.directoryExists(directoryName); },
        getEnvironmentVariable: function (name) { return ts.sys.getEnvironmentVariable ? ts.sys.getEnvironmentVariable(name) : ""; },
        getDirectories: function (path) { return ts.sys.getDirectories(path); },
        realpath: realpath
    };
}
ts.createCompilerHost = createCompilerHost;
function getPreEmitDiagnostics(program, sourceFile, cancellationToken) {
    var diagnostics = program.getOptionsDiagnostics(cancellationToken).concat(program.getSyntacticDiagnostics(sourceFile, cancellationToken), program.getGlobalDiagnostics(cancellationToken), program.getSemanticDiagnostics(sourceFile, cancellationToken));
    if (program.getCompilerOptions().declaration) {
        diagnostics = diagnostics.concat(program.getDeclarationDiagnostics(sourceFile, cancellationToken));
    }
    return ts.sortAndDeduplicateDiagnostics(diagnostics);
}
ts.getPreEmitDiagnostics = getPreEmitDiagnostics;
function formatDiagnostics(diagnostics, host) {
    var output = "";
    for (var _i = 0, diagnostics_1 = diagnostics; _i < diagnostics_1.length; _i++) {
        var diagnostic = diagnostics_1[_i];
        if (diagnostic.file) {
            var _a = ts.getLineAndCharacterOfPosition(diagnostic.file, diagnostic.start), line = _a.line, character = _a.character;
            var fileName = diagnostic.file.fileName;
            var relativeFileName = ts.convertToRelativePath(fileName, host.getCurrentDirectory(), function (fileName) { return host.getCanonicalFileName(fileName); });
            output += relativeFileName + "(" + (line + 1) + "," + (character + 1) + "): ";
        }
        var category = ts.DiagnosticCategory[diagnostic.category].toLowerCase();
        output += category + " TS" + diagnostic.code + ": " + flattenDiagnosticMessageText(diagnostic.messageText, host.getNewLine()) + host.getNewLine();
    }
    return output;
}
ts.formatDiagnostics = formatDiagnostics;
function flattenDiagnosticMessageText(messageText, newLine) {
    if (typeof messageText === "string") {
        return messageText;
    }
    else {
        var diagnosticChain = messageText;
        var result = "";
        var indent = 0;
        while (diagnosticChain) {
            if (indent) {
                result += newLine;
                for (var i = 0; i < indent; i++) {
                    result += "  ";
                }
            }
            result += diagnosticChain.messageText;
            indent++;
            diagnosticChain = diagnosticChain.next;
        }
        return result;
    }
}
ts.flattenDiagnosticMessageText = flattenDiagnosticMessageText;
function loadWithLocalCache(names, containingFile, loader) {
    if (names.length === 0) {
        return [];
    }
    var resolutions = [];
    var cache = ts.createMap();
    for (var _i = 0, names_1 = names; _i < names_1.length; _i++) {
        var name_43 = names_1[_i];
        var result = name_43 in cache
            ? cache[name_43]
            : cache[name_43] = loader(name_43, containingFile);
        resolutions.push(result);
    }
    return resolutions;
}
function createProgram(rootNames, options, host, oldProgram) {
    var program;
    var files = [];
    var commonSourceDirectory;
    var diagnosticsProducingTypeChecker;
    var noDiagnosticsTypeChecker;
    var classifiableNames;
    var resolvedTypeReferenceDirectives = ts.createMap();
    var fileProcessingDiagnostics = ts.createDiagnosticCollection();
    var maxNodeModuleJsDepth = typeof options.maxNodeModuleJsDepth === "number" ? options.maxNodeModuleJsDepth : 0;
    var currentNodeModulesDepth = 0;
    var modulesWithElidedImports = ts.createMap();
    var sourceFilesFoundSearchingNodeModules = ts.createMap();
    ts.performance.mark("beforeProgram");
    host = host || createCompilerHost(options);
    var skipDefaultLib = options.noLib;
    var programDiagnostics = ts.createDiagnosticCollection();
    var currentDirectory = host.getCurrentDirectory();
    var supportedExtensions = ts.getSupportedExtensions(options);
    var hasEmitBlockingDiagnostics = ts.createFileMap(getCanonicalFileName);
    var moduleResolutionCache;
    var resolveModuleNamesWorker;
    if (host.resolveModuleNames) {
        resolveModuleNamesWorker = function (moduleNames, containingFile) { return host.resolveModuleNames(moduleNames, containingFile).map(function (resolved) {
            if (!resolved || resolved.extension !== undefined) {
                return resolved;
            }
            var withExtension = ts.clone(resolved);
            withExtension.extension = ts.extensionFromPath(resolved.resolvedFileName);
            return withExtension;
        }); };
    }
    else {
        moduleResolutionCache = ts.createModuleResolutionCache(currentDirectory, function (x) { return host.getCanonicalFileName(x); });
        var loader_1 = function (moduleName, containingFile) { return ts.resolveModuleName(moduleName, containingFile, options, host, moduleResolutionCache).resolvedModule; };
        resolveModuleNamesWorker = function (moduleNames, containingFile) { return loadWithLocalCache(moduleNames, containingFile, loader_1); };
    }
    var resolveTypeReferenceDirectiveNamesWorker;
    if (host.resolveTypeReferenceDirectives) {
        resolveTypeReferenceDirectiveNamesWorker = function (typeDirectiveNames, containingFile) { return host.resolveTypeReferenceDirectives(typeDirectiveNames, containingFile); };
    }
    else {
        var loader_2 = function (typesRef, containingFile) { return ts.resolveTypeReferenceDirective(typesRef, containingFile, options, host).resolvedTypeReferenceDirective; };
        resolveTypeReferenceDirectiveNamesWorker = function (typeReferenceDirectiveNames, containingFile) { return loadWithLocalCache(typeReferenceDirectiveNames, containingFile, loader_2); };
    }
    var filesByName = ts.createFileMap();
    var filesByNameIgnoreCase = host.useCaseSensitiveFileNames() ? ts.createFileMap(function (fileName) { return fileName.toLowerCase(); }) : undefined;
    if (!tryReuseStructureFromOldProgram()) {
        ts.forEach(rootNames, function (name) { return processRootFile(name, false); });
        var typeReferences = ts.getAutomaticTypeDirectiveNames(options, host);
        if (typeReferences.length) {
            var containingDirectory = options.configFilePath ? ts.getDirectoryPath(options.configFilePath) : host.getCurrentDirectory();
            var containingFilename = ts.combinePaths(containingDirectory, "__inferred type names__.ts");
            var resolutions = resolveTypeReferenceDirectiveNamesWorker(typeReferences, containingFilename);
            for (var i = 0; i < typeReferences.length; i++) {
                processTypeReferenceDirective(typeReferences[i], resolutions[i]);
            }
        }
        if (!skipDefaultLib) {
            if (!options.lib) {
                processRootFile(host.getDefaultLibFileName(options), true);
            }
            else {
                var libDirectory_1 = host.getDefaultLibLocation ? host.getDefaultLibLocation() : ts.getDirectoryPath(host.getDefaultLibFileName(options));
                ts.forEach(options.lib, function (libFileName) {
                    processRootFile(ts.combinePaths(libDirectory_1, libFileName), true);
                });
            }
        }
    }
    moduleResolutionCache = undefined;
    oldProgram = undefined;
    program = {
        getRootFileNames: function () { return rootNames; },
        getSourceFile: getSourceFile,
        getSourceFileByPath: getSourceFileByPath,
        getSourceFiles: function () { return files; },
        getCompilerOptions: function () { return options; },
        getSyntacticDiagnostics: getSyntacticDiagnostics,
        getOptionsDiagnostics: getOptionsDiagnostics,
        getGlobalDiagnostics: getGlobalDiagnostics,
        getSemanticDiagnostics: getSemanticDiagnostics,
        getDeclarationDiagnostics: getDeclarationDiagnostics,
        getTypeChecker: getTypeChecker,
        getClassifiableNames: getClassifiableNames,
        getDiagnosticsProducingTypeChecker: getDiagnosticsProducingTypeChecker,
        getCommonSourceDirectory: getCommonSourceDirectory,
        emit: emit,
        getCurrentDirectory: function () { return currentDirectory; },
        getNodeCount: function () { return getDiagnosticsProducingTypeChecker().getNodeCount(); },
        getIdentifierCount: function () { return getDiagnosticsProducingTypeChecker().getIdentifierCount(); },
        getSymbolCount: function () { return getDiagnosticsProducingTypeChecker().getSymbolCount(); },
        getTypeCount: function () { return getDiagnosticsProducingTypeChecker().getTypeCount(); },
        getFileProcessingDiagnostics: function () { return fileProcessingDiagnostics; },
        getResolvedTypeReferenceDirectives: function () { return resolvedTypeReferenceDirectives; },
        isSourceFileFromExternalLibrary: isSourceFileFromExternalLibrary,
        dropDiagnosticsProducingTypeChecker: dropDiagnosticsProducingTypeChecker
    };
    verifyCompilerOptions();
    ts.performance.mark("afterProgram");
    ts.performance.measure("Program", "beforeProgram", "afterProgram");
    return program;
    function getCommonSourceDirectory() {
        if (commonSourceDirectory === undefined) {
            var emittedFiles = ts.filterSourceFilesInDirectory(files, isSourceFileFromExternalLibrary);
            if (options.rootDir && checkSourceFilesBelongToPath(emittedFiles, options.rootDir)) {
                commonSourceDirectory = ts.getNormalizedAbsolutePath(options.rootDir, currentDirectory);
            }
            else {
                commonSourceDirectory = computeCommonSourceDirectory(emittedFiles);
            }
            if (commonSourceDirectory && commonSourceDirectory[commonSourceDirectory.length - 1] !== ts.directorySeparator) {
                commonSourceDirectory += ts.directorySeparator;
            }
        }
        return commonSourceDirectory;
    }
    function getClassifiableNames() {
        if (!classifiableNames) {
            getTypeChecker();
            classifiableNames = ts.createMap();
            for (var _i = 0, files_2 = files; _i < files_2.length; _i++) {
                var sourceFile = files_2[_i];
                ts.copyProperties(sourceFile.classifiableNames, classifiableNames);
            }
        }
        return classifiableNames;
    }
    function resolveModuleNamesReusingOldState(moduleNames, containingFile, file, oldProgramState) {
        if (!oldProgramState && !file.ambientModuleNames.length) {
            return resolveModuleNamesWorker(moduleNames, containingFile);
        }
        var unknownModuleNames;
        var result;
        var predictedToResolveToAmbientModuleMarker = {};
        for (var i = 0; i < moduleNames.length; i++) {
            var moduleName = moduleNames[i];
            var isKnownToResolveToAmbientModule = false;
            if (ts.contains(file.ambientModuleNames, moduleName)) {
                isKnownToResolveToAmbientModule = true;
                if (ts.isTraceEnabled(options, host)) {
                    ts.trace(host, ts.Diagnostics.Module_0_was_resolved_as_locally_declared_ambient_module_in_file_1, moduleName, containingFile);
                }
            }
            else {
                isKnownToResolveToAmbientModule = checkModuleNameResolvedToAmbientModuleInNonModifiedFile(moduleName, oldProgramState);
            }
            if (isKnownToResolveToAmbientModule) {
                if (!unknownModuleNames) {
                    result = new Array(moduleNames.length);
                    unknownModuleNames = moduleNames.slice(0, i);
                }
                result[i] = predictedToResolveToAmbientModuleMarker;
            }
            else if (unknownModuleNames) {
                unknownModuleNames.push(moduleName);
            }
        }
        if (!unknownModuleNames) {
            return resolveModuleNamesWorker(moduleNames, containingFile);
        }
        var resolutions = unknownModuleNames.length
            ? resolveModuleNamesWorker(unknownModuleNames, containingFile)
            : emptyArray;
        var j = 0;
        for (var i = 0; i < result.length; i++) {
            if (result[i] == predictedToResolveToAmbientModuleMarker) {
                result[i] = undefined;
            }
            else {
                result[i] = resolutions[j];
                j++;
            }
        }
        ts.Debug.assert(j === resolutions.length);
        return result;
        function checkModuleNameResolvedToAmbientModuleInNonModifiedFile(moduleName, oldProgramState) {
            if (!oldProgramState) {
                return false;
            }
            var resolutionToFile = ts.getResolvedModule(oldProgramState.file, moduleName);
            if (resolutionToFile) {
                return false;
            }
            var ambientModule = oldProgram.getTypeChecker().tryFindAmbientModuleWithoutAugmentations(moduleName);
            if (!(ambientModule && ambientModule.declarations)) {
                return false;
            }
            var firstUnmodifiedFile = ts.forEach(ambientModule.declarations, function (d) {
                var f = ts.getSourceFileOfNode(d);
                return !ts.contains(oldProgramState.modifiedFilePaths, f.path) && f;
            });
            if (!firstUnmodifiedFile) {
                return false;
            }
            if (ts.isTraceEnabled(options, host)) {
                ts.trace(host, ts.Diagnostics.Module_0_was_resolved_as_ambient_module_declared_in_1_since_this_file_was_not_modified, moduleName, firstUnmodifiedFile.fileName);
            }
            return true;
        }
    }
    function tryReuseStructureFromOldProgram() {
        if (!oldProgram) {
            return false;
        }
        var oldOptions = oldProgram.getCompilerOptions();
        if (ts.changesAffectModuleResolution(oldOptions, options)) {
            return false;
        }
        ts.Debug.assert(!oldProgram.structureIsReused);
        var oldRootNames = oldProgram.getRootFileNames();
        if (!ts.arrayIsEqualTo(oldRootNames, rootNames)) {
            return false;
        }
        if (!ts.arrayIsEqualTo(options.types, oldOptions.types)) {
            return false;
        }
        var newSourceFiles = [];
        var filePaths = [];
        var modifiedSourceFiles = [];
        for (var _i = 0, _a = oldProgram.getSourceFiles(); _i < _a.length; _i++) {
            var oldSourceFile = _a[_i];
            var newSourceFile = host.getSourceFileByPath
                ? host.getSourceFileByPath(oldSourceFile.fileName, oldSourceFile.path, options.target)
                : host.getSourceFile(oldSourceFile.fileName, options.target);
            if (!newSourceFile) {
                return false;
            }
            newSourceFile.path = oldSourceFile.path;
            filePaths.push(newSourceFile.path);
            if (oldSourceFile !== newSourceFile) {
                if (oldSourceFile.hasNoDefaultLib !== newSourceFile.hasNoDefaultLib) {
                    return false;
                }
                if (!ts.arrayIsEqualTo(oldSourceFile.referencedFiles, newSourceFile.referencedFiles, fileReferenceIsEqualTo)) {
                    return false;
                }
                collectExternalModuleReferences(newSourceFile);
                if (!ts.arrayIsEqualTo(oldSourceFile.imports, newSourceFile.imports, moduleNameIsEqualTo)) {
                    return false;
                }
                if (!ts.arrayIsEqualTo(oldSourceFile.moduleAugmentations, newSourceFile.moduleAugmentations, moduleNameIsEqualTo)) {
                    return false;
                }
                if (!ts.arrayIsEqualTo(oldSourceFile.typeReferenceDirectives, newSourceFile.typeReferenceDirectives, fileReferenceIsEqualTo)) {
                    return false;
                }
                modifiedSourceFiles.push({ oldFile: oldSourceFile, newFile: newSourceFile });
            }
            else {
                newSourceFile = oldSourceFile;
            }
            newSourceFiles.push(newSourceFile);
        }
        var modifiedFilePaths = modifiedSourceFiles.map(function (f) { return f.newFile.path; });
        for (var _b = 0, modifiedSourceFiles_1 = modifiedSourceFiles; _b < modifiedSourceFiles_1.length; _b++) {
            var _c = modifiedSourceFiles_1[_b], oldSourceFile = _c.oldFile, newSourceFile = _c.newFile;
            var newSourceFilePath = ts.getNormalizedAbsolutePath(newSourceFile.fileName, currentDirectory);
            if (resolveModuleNamesWorker) {
                var moduleNames = ts.map(ts.concatenate(newSourceFile.imports, newSourceFile.moduleAugmentations), getTextOfLiteral);
                var resolutions = resolveModuleNamesReusingOldState(moduleNames, newSourceFilePath, newSourceFile, { file: oldSourceFile, program: oldProgram, modifiedFilePaths: modifiedFilePaths });
                var resolutionsChanged = ts.hasChangesInResolutions(moduleNames, resolutions, oldSourceFile.resolvedModules, ts.moduleResolutionIsEqualTo);
                if (resolutionsChanged) {
                    return false;
                }
            }
            if (resolveTypeReferenceDirectiveNamesWorker) {
                var typesReferenceDirectives = ts.map(newSourceFile.typeReferenceDirectives, function (x) { return x.fileName; });
                var resolutions = resolveTypeReferenceDirectiveNamesWorker(typesReferenceDirectives, newSourceFilePath);
                var resolutionsChanged = ts.hasChangesInResolutions(typesReferenceDirectives, resolutions, oldSourceFile.resolvedTypeReferenceDirectiveNames, ts.typeDirectiveIsEqualTo);
                if (resolutionsChanged) {
                    return false;
                }
            }
            newSourceFile.resolvedModules = oldSourceFile.resolvedModules;
            newSourceFile.resolvedTypeReferenceDirectiveNames = oldSourceFile.resolvedTypeReferenceDirectiveNames;
        }
        for (var i = 0, len = newSourceFiles.length; i < len; i++) {
            filesByName.set(filePaths[i], newSourceFiles[i]);
        }
        files = newSourceFiles;
        fileProcessingDiagnostics = oldProgram.getFileProcessingDiagnostics();
        for (var _d = 0, modifiedSourceFiles_2 = modifiedSourceFiles; _d < modifiedSourceFiles_2.length; _d++) {
            var modifiedFile = modifiedSourceFiles_2[_d];
            fileProcessingDiagnostics.reattachFileDiagnostics(modifiedFile.newFile);
        }
        resolvedTypeReferenceDirectives = oldProgram.getResolvedTypeReferenceDirectives();
        oldProgram.structureIsReused = true;
        return true;
    }
    function getEmitHost(writeFileCallback) {
        return {
            getCanonicalFileName: getCanonicalFileName,
            getCommonSourceDirectory: program.getCommonSourceDirectory,
            getCompilerOptions: program.getCompilerOptions,
            getCurrentDirectory: function () { return currentDirectory; },
            getNewLine: function () { return host.getNewLine(); },
            getSourceFile: program.getSourceFile,
            getSourceFileByPath: program.getSourceFileByPath,
            getSourceFiles: program.getSourceFiles,
            isSourceFileFromExternalLibrary: isSourceFileFromExternalLibrary,
            writeFile: writeFileCallback || (function (fileName, data, writeByteOrderMark, onError, sourceFiles) { return host.writeFile(fileName, data, writeByteOrderMark, onError, sourceFiles); }),
            isEmitBlocked: isEmitBlocked,
        };
    }
    function isSourceFileFromExternalLibrary(file) {
        return sourceFilesFoundSearchingNodeModules[file.path];
    }
    function getDiagnosticsProducingTypeChecker() {
        return diagnosticsProducingTypeChecker || (diagnosticsProducingTypeChecker = ts.createTypeChecker(program, true));
    }
    function dropDiagnosticsProducingTypeChecker() {
        diagnosticsProducingTypeChecker = undefined;
    }
    function getTypeChecker() {
        return noDiagnosticsTypeChecker || (noDiagnosticsTypeChecker = ts.createTypeChecker(program, false));
    }
    function emit(sourceFile, writeFileCallback, cancellationToken, emitOnlyDtsFiles) {
        return runWithCancellationToken(function () { return emitWorker(program, sourceFile, writeFileCallback, cancellationToken, emitOnlyDtsFiles); });
    }
    function isEmitBlocked(emitFileName) {
        return hasEmitBlockingDiagnostics.contains(ts.toPath(emitFileName, currentDirectory, getCanonicalFileName));
    }
    function emitWorker(program, sourceFile, writeFileCallback, cancellationToken, emitOnlyDtsFiles) {
        var declarationDiagnostics = [];
        if (options.noEmit) {
            return { diagnostics: declarationDiagnostics, sourceMaps: undefined, emittedFiles: undefined, emitSkipped: true };
        }
        if (options.noEmitOnError) {
            var diagnostics = program.getOptionsDiagnostics(cancellationToken).concat(program.getSyntacticDiagnostics(sourceFile, cancellationToken), program.getGlobalDiagnostics(cancellationToken), program.getSemanticDiagnostics(sourceFile, cancellationToken));
            if (diagnostics.length === 0 && program.getCompilerOptions().declaration) {
                declarationDiagnostics = program.getDeclarationDiagnostics(undefined, cancellationToken);
            }
            if (diagnostics.length > 0 || declarationDiagnostics.length > 0) {
                return {
                    diagnostics: ts.concatenate(diagnostics, declarationDiagnostics),
                    sourceMaps: undefined,
                    emittedFiles: undefined,
                    emitSkipped: true
                };
            }
        }
        var emitResolver = getDiagnosticsProducingTypeChecker().getEmitResolver((options.outFile || options.out) ? undefined : sourceFile);
        ts.performance.mark("beforeEmit");
        var emitResult = ts.emitFiles(emitResolver, getEmitHost(writeFileCallback), sourceFile, emitOnlyDtsFiles);
        ts.performance.mark("afterEmit");
        ts.performance.measure("Emit", "beforeEmit", "afterEmit");
        return emitResult;
    }
    function getSourceFile(fileName) {
        return getSourceFileByPath(ts.toPath(fileName, currentDirectory, getCanonicalFileName));
    }
    function getSourceFileByPath(path) {
        return filesByName.get(path);
    }
    function getDiagnosticsHelper(sourceFile, getDiagnostics, cancellationToken) {
        if (sourceFile) {
            return getDiagnostics(sourceFile, cancellationToken);
        }
        var allDiagnostics = [];
        ts.forEach(program.getSourceFiles(), function (sourceFile) {
            if (cancellationToken) {
                cancellationToken.throwIfCancellationRequested();
            }
            ts.addRange(allDiagnostics, getDiagnostics(sourceFile, cancellationToken));
        });
        return ts.sortAndDeduplicateDiagnostics(allDiagnostics);
    }
    function getSyntacticDiagnostics(sourceFile, cancellationToken) {
        return getDiagnosticsHelper(sourceFile, getSyntacticDiagnosticsForFile, cancellationToken);
    }
    function getSemanticDiagnostics(sourceFile, cancellationToken) {
        return getDiagnosticsHelper(sourceFile, getSemanticDiagnosticsForFile, cancellationToken);
    }
    function getDeclarationDiagnostics(sourceFile, cancellationToken) {
        var options = program.getCompilerOptions();
        if (!sourceFile || options.out || options.outFile) {
            return getDeclarationDiagnosticsWorker(sourceFile, cancellationToken);
        }
        else {
            return getDiagnosticsHelper(sourceFile, getDeclarationDiagnosticsForFile, cancellationToken);
        }
    }
    function getSyntacticDiagnosticsForFile(sourceFile) {
        if (ts.isSourceFileJavaScript(sourceFile)) {
            if (!sourceFile.additionalSyntacticDiagnostics) {
                sourceFile.additionalSyntacticDiagnostics = getJavaScriptSyntacticDiagnosticsForFile(sourceFile);
            }
            return ts.concatenate(sourceFile.additionalSyntacticDiagnostics, sourceFile.parseDiagnostics);
        }
        return sourceFile.parseDiagnostics;
    }
    function runWithCancellationToken(func) {
        try {
            return func();
        }
        catch (e) {
            if (e instanceof ts.OperationCanceledException) {
                noDiagnosticsTypeChecker = undefined;
                diagnosticsProducingTypeChecker = undefined;
            }
            throw e;
        }
    }
    function getSemanticDiagnosticsForFile(sourceFile, cancellationToken) {
        return runWithCancellationToken(function () {
            var typeChecker = getDiagnosticsProducingTypeChecker();
            ts.Debug.assert(!!sourceFile.bindDiagnostics);
            var bindDiagnostics = sourceFile.bindDiagnostics;
            var checkDiagnostics = ts.isSourceFileJavaScript(sourceFile) ? [] : typeChecker.getDiagnostics(sourceFile, cancellationToken);
            var fileProcessingDiagnosticsInFile = fileProcessingDiagnostics.getDiagnostics(sourceFile.fileName);
            var programDiagnosticsInFile = programDiagnostics.getDiagnostics(sourceFile.fileName);
            return bindDiagnostics.concat(checkDiagnostics, fileProcessingDiagnosticsInFile, programDiagnosticsInFile);
        });
    }
    function getJavaScriptSyntacticDiagnosticsForFile(sourceFile) {
        return runWithCancellationToken(function () {
            var diagnostics = [];
            var parent = sourceFile;
            walk(sourceFile);
            return diagnostics;
            function walk(node) {
                switch (parent.kind) {
                    case 144:
                    case 147:
                        if (parent.questionToken === node) {
                            diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics._0_can_only_be_used_in_a_ts_file, "?"));
                            return;
                        }
                    case 149:
                    case 148:
                    case 150:
                    case 151:
                    case 152:
                    case 184:
                    case 225:
                    case 185:
                    case 225:
                    case 223:
                        if (parent.type === node) {
                            diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.types_can_only_be_used_in_a_ts_file));
                            return;
                        }
                }
                switch (node.kind) {
                    case 234:
                        diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.import_can_only_be_used_in_a_ts_file));
                        return;
                    case 240:
                        if (node.isExportEquals) {
                            diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.export_can_only_be_used_in_a_ts_file));
                            return;
                        }
                        break;
                    case 255:
                        var heritageClause = node;
                        if (heritageClause.token === 107) {
                            diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.implements_clauses_can_only_be_used_in_a_ts_file));
                            return;
                        }
                        break;
                    case 227:
                        diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.interface_declarations_can_only_be_used_in_a_ts_file));
                        return;
                    case 230:
                        diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.module_declarations_can_only_be_used_in_a_ts_file));
                        return;
                    case 228:
                        diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.type_aliases_can_only_be_used_in_a_ts_file));
                        return;
                    case 229:
                        diagnostics.push(createDiagnosticForNode(node, ts.Diagnostics.enum_declarations_can_only_be_used_in_a_ts_file));
                        return;
                    case 182:
                        var typeAssertionExpression = node;
                        diagnostics.push(createDiagnosticForNode(typeAssertionExpression.type, ts.Diagnostics.type_assertion_expressions_can_only_be_used_in_a_ts_file));
                        return;
                }
                var prevParent = parent;
                parent = node;
                ts.forEachChild(node, walk, walkArray);
                parent = prevParent;
            }
            function walkArray(nodes) {
                if (parent.decorators === nodes && !options.experimentalDecorators) {
                    diagnostics.push(createDiagnosticForNode(parent, ts.Diagnostics.Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_to_remove_this_warning));
                }
                switch (parent.kind) {
                    case 226:
                    case 149:
                    case 148:
                    case 150:
                    case 151:
                    case 152:
                    case 184:
                    case 225:
                    case 185:
                    case 225:
                        if (nodes === parent.typeParameters) {
                            diagnostics.push(createDiagnosticForNodeArray(nodes, ts.Diagnostics.type_parameter_declarations_can_only_be_used_in_a_ts_file));
                            return;
                        }
                    case 205:
                        if (nodes === parent.modifiers) {
                            return checkModifiers(nodes, parent.kind === 205);
                        }
                        break;
                    case 147:
                        if (nodes === parent.modifiers) {
                            for (var _i = 0, _a = nodes; _i < _a.length; _i++) {
                                var modifier = _a[_i];
                                if (modifier.kind !== 114) {
                                    diagnostics.push(createDiagnosticForNode(modifier, ts.Diagnostics._0_can_only_be_used_in_a_ts_file, ts.tokenToString(modifier.kind)));
                                }
                            }
                            return;
                        }
                        break;
                    case 144:
                        if (nodes === parent.modifiers) {
                            diagnostics.push(createDiagnosticForNodeArray(nodes, ts.Diagnostics.parameter_modifiers_can_only_be_used_in_a_ts_file));
                            return;
                        }
                        break;
                    case 179:
                    case 180:
                    case 199:
                        if (nodes === parent.typeArguments) {
                            diagnostics.push(createDiagnosticForNodeArray(nodes, ts.Diagnostics.type_arguments_can_only_be_used_in_a_ts_file));
                            return;
                        }
                        break;
                }
                for (var _b = 0, nodes_6 = nodes; _b < nodes_6.length; _b++) {
                    var node = nodes_6[_b];
                    walk(node);
                }
            }
            function checkModifiers(modifiers, isConstValid) {
                for (var _i = 0, modifiers_1 = modifiers; _i < modifiers_1.length; _i++) {
                    var modifier = modifiers_1[_i];
                    switch (modifier.kind) {
                        case 75:
                            if (isConstValid) {
                                continue;
                            }
                        case 113:
                        case 111:
                        case 112:
                        case 130:
                        case 123:
                        case 116:
                            diagnostics.push(createDiagnosticForNode(modifier, ts.Diagnostics._0_can_only_be_used_in_a_ts_file, ts.tokenToString(modifier.kind)));
                            break;
                        case 114:
                        case 83:
                        case 78:
                    }
                }
            }
            function createDiagnosticForNodeArray(nodes, message, arg0, arg1, arg2) {
                var start = nodes.pos;
                return ts.createFileDiagnostic(sourceFile, start, nodes.end - start, message, arg0, arg1, arg2);
            }
            function createDiagnosticForNode(node, message, arg0, arg1, arg2) {
                return ts.createDiagnosticForNodeInSourceFile(sourceFile, node, message, arg0, arg1, arg2);
            }
        });
    }
    function getDeclarationDiagnosticsWorker(sourceFile, cancellationToken) {
        return runWithCancellationToken(function () {
            var resolver = getDiagnosticsProducingTypeChecker().getEmitResolver(sourceFile, cancellationToken);
            return ts.getDeclarationDiagnostics(getEmitHost(ts.noop), resolver, sourceFile);
        });
    }
    function getDeclarationDiagnosticsForFile(sourceFile, cancellationToken) {
        return ts.isDeclarationFile(sourceFile) ? [] : getDeclarationDiagnosticsWorker(sourceFile, cancellationToken);
    }
    function getOptionsDiagnostics() {
        var allDiagnostics = [];
        ts.addRange(allDiagnostics, fileProcessingDiagnostics.getGlobalDiagnostics());
        ts.addRange(allDiagnostics, programDiagnostics.getGlobalDiagnostics());
        return ts.sortAndDeduplicateDiagnostics(allDiagnostics);
    }
    function getGlobalDiagnostics() {
        var allDiagnostics = [];
        ts.addRange(allDiagnostics, getDiagnosticsProducingTypeChecker().getGlobalDiagnostics());
        return ts.sortAndDeduplicateDiagnostics(allDiagnostics);
    }
    function processRootFile(fileName, isDefaultLib) {
        processSourceFile(ts.normalizePath(fileName), isDefaultLib);
    }
    function fileReferenceIsEqualTo(a, b) {
        return a.fileName === b.fileName;
    }
    function moduleNameIsEqualTo(a, b) {
        return a.text === b.text;
    }
    function getTextOfLiteral(literal) {
        return literal.text;
    }
    function collectExternalModuleReferences(file) {
        if (file.imports) {
            return;
        }
        var isJavaScriptFile = ts.isSourceFileJavaScript(file);
        var isExternalModuleFile = ts.isExternalModule(file);
        var isDtsFile = ts.isDeclarationFile(file);
        var imports;
        var moduleAugmentations;
        var ambientModules;
        if (options.importHelpers
            && (options.isolatedModules || isExternalModuleFile)
            && !file.isDeclarationFile) {
            var externalHelpersModuleReference = ts.createSynthesizedNode(9);
            externalHelpersModuleReference.text = ts.externalHelpersModuleNameText;
            var importDecl = ts.createSynthesizedNode(235);
            importDecl.parent = file;
            externalHelpersModuleReference.parent = importDecl;
            imports = [externalHelpersModuleReference];
        }
        for (var _i = 0, _a = file.statements; _i < _a.length; _i++) {
            var node = _a[_i];
            collectModuleReferences(node, false);
            if (isJavaScriptFile) {
                collectRequireCalls(node);
            }
        }
        file.imports = imports || emptyArray;
        file.moduleAugmentations = moduleAugmentations || emptyArray;
        file.ambientModuleNames = ambientModules || emptyArray;
        return;
        function collectModuleReferences(node, inAmbientModule) {
            switch (node.kind) {
                case 235:
                case 234:
                case 241:
                    var moduleNameExpr = ts.getExternalModuleName(node);
                    if (!moduleNameExpr || moduleNameExpr.kind !== 9) {
                        break;
                    }
                    if (!moduleNameExpr.text) {
                        break;
                    }
                    if (!inAmbientModule || !ts.isExternalModuleNameRelative(moduleNameExpr.text)) {
                        (imports || (imports = [])).push(moduleNameExpr);
                    }
                    break;
                case 230:
                    if (ts.isAmbientModule(node) && (inAmbientModule || ts.hasModifier(node, 2) || ts.isDeclarationFile(file))) {
                        var moduleName = node.name;
                        if (isExternalModuleFile || (inAmbientModule && !ts.isExternalModuleNameRelative(moduleName.text))) {
                            (moduleAugmentations || (moduleAugmentations = [])).push(moduleName);
                        }
                        else if (!inAmbientModule) {
                            if (isDtsFile) {
                                (ambientModules || (ambientModules = [])).push(moduleName.text);
                            }
                            var body = node.body;
                            if (body) {
                                for (var _i = 0, _a = body.statements; _i < _a.length; _i++) {
                                    var statement = _a[_i];
                                    collectModuleReferences(statement, true);
                                }
                            }
                        }
                    }
            }
        }
        function collectRequireCalls(node) {
            if (ts.isRequireCall(node, true)) {
                (imports || (imports = [])).push(node.arguments[0]);
            }
            else {
                ts.forEachChild(node, collectRequireCalls);
            }
        }
    }
    function processSourceFile(fileName, isDefaultLib, refFile, refPos, refEnd) {
        var diagnosticArgument;
        var diagnostic;
        if (ts.hasExtension(fileName)) {
            if (!options.allowNonTsExtensions && !ts.forEach(supportedExtensions, function (extension) { return ts.fileExtensionIs(host.getCanonicalFileName(fileName), extension); })) {
                diagnostic = ts.Diagnostics.File_0_has_unsupported_extension_The_only_supported_extensions_are_1;
                diagnosticArgument = [fileName, "'" + supportedExtensions.join("', '") + "'"];
            }
            else if (!findSourceFile(fileName, ts.toPath(fileName, currentDirectory, getCanonicalFileName), isDefaultLib, refFile, refPos, refEnd)) {
                diagnostic = ts.Diagnostics.File_0_not_found;
                diagnosticArgument = [fileName];
            }
            else if (refFile && host.getCanonicalFileName(fileName) === host.getCanonicalFileName(refFile.fileName)) {
                diagnostic = ts.Diagnostics.A_file_cannot_have_a_reference_to_itself;
                diagnosticArgument = [fileName];
            }
        }
        else {
            var nonTsFile = options.allowNonTsExtensions && findSourceFile(fileName, ts.toPath(fileName, currentDirectory, getCanonicalFileName), isDefaultLib, refFile, refPos, refEnd);
            if (!nonTsFile) {
                if (options.allowNonTsExtensions) {
                    diagnostic = ts.Diagnostics.File_0_not_found;
                    diagnosticArgument = [fileName];
                }
                else if (!ts.forEach(supportedExtensions, function (extension) { return findSourceFile(fileName + extension, ts.toPath(fileName + extension, currentDirectory, getCanonicalFileName), isDefaultLib, refFile, refPos, refEnd); })) {
                    diagnostic = ts.Diagnostics.File_0_not_found;
                    fileName += ".ts";
                    diagnosticArgument = [fileName];
                }
            }
        }
        if (diagnostic) {
            if (refFile !== undefined && refEnd !== undefined && refPos !== undefined) {
                fileProcessingDiagnostics.add(ts.createFileDiagnostic.apply(void 0, [refFile, refPos, refEnd - refPos, diagnostic].concat(diagnosticArgument)));
            }
            else {
                fileProcessingDiagnostics.add(ts.createCompilerDiagnostic.apply(void 0, [diagnostic].concat(diagnosticArgument)));
            }
        }
    }
    function reportFileNamesDifferOnlyInCasingError(fileName, existingFileName, refFile, refPos, refEnd) {
        if (refFile !== undefined && refPos !== undefined && refEnd !== undefined) {
            fileProcessingDiagnostics.add(ts.createFileDiagnostic(refFile, refPos, refEnd - refPos, ts.Diagnostics.File_name_0_differs_from_already_included_file_name_1_only_in_casing, fileName, existingFileName));
        }
        else {
            fileProcessingDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.File_name_0_differs_from_already_included_file_name_1_only_in_casing, fileName, existingFileName));
        }
    }
    function findSourceFile(fileName, path, isDefaultLib, refFile, refPos, refEnd) {
        if (filesByName.contains(path)) {
            var file_1 = filesByName.get(path);
            if (file_1 && options.forceConsistentCasingInFileNames && ts.getNormalizedAbsolutePath(file_1.fileName, currentDirectory) !== ts.getNormalizedAbsolutePath(fileName, currentDirectory)) {
                reportFileNamesDifferOnlyInCasingError(fileName, file_1.fileName, refFile, refPos, refEnd);
            }
            if (file_1 && sourceFilesFoundSearchingNodeModules[file_1.path] && currentNodeModulesDepth == 0) {
                sourceFilesFoundSearchingNodeModules[file_1.path] = false;
                if (!options.noResolve) {
                    processReferencedFiles(file_1, isDefaultLib);
                    processTypeReferenceDirectives(file_1);
                }
                modulesWithElidedImports[file_1.path] = false;
                processImportedModules(file_1);
            }
            else if (file_1 && modulesWithElidedImports[file_1.path]) {
                if (currentNodeModulesDepth < maxNodeModuleJsDepth) {
                    modulesWithElidedImports[file_1.path] = false;
                    processImportedModules(file_1);
                }
            }
            return file_1;
        }
        var file = host.getSourceFile(fileName, options.target, function (hostErrorMessage) {
            if (refFile !== undefined && refPos !== undefined && refEnd !== undefined) {
                fileProcessingDiagnostics.add(ts.createFileDiagnostic(refFile, refPos, refEnd - refPos, ts.Diagnostics.Cannot_read_file_0_Colon_1, fileName, hostErrorMessage));
            }
            else {
                fileProcessingDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_read_file_0_Colon_1, fileName, hostErrorMessage));
            }
        });
        filesByName.set(path, file);
        if (file) {
            sourceFilesFoundSearchingNodeModules[path] = (currentNodeModulesDepth > 0);
            file.path = path;
            if (host.useCaseSensitiveFileNames()) {
                var existingFile = filesByNameIgnoreCase.get(path);
                if (existingFile) {
                    reportFileNamesDifferOnlyInCasingError(fileName, existingFile.fileName, refFile, refPos, refEnd);
                }
                else {
                    filesByNameIgnoreCase.set(path, file);
                }
            }
            skipDefaultLib = skipDefaultLib || file.hasNoDefaultLib;
            if (!options.noResolve) {
                processReferencedFiles(file, isDefaultLib);
                processTypeReferenceDirectives(file);
            }
            processImportedModules(file);
            if (isDefaultLib) {
                files.unshift(file);
            }
            else {
                files.push(file);
            }
        }
        return file;
    }
    function processReferencedFiles(file, isDefaultLib) {
        ts.forEach(file.referencedFiles, function (ref) {
            var referencedFileName = resolveTripleslashReference(ref.fileName, file.fileName);
            processSourceFile(referencedFileName, isDefaultLib, file, ref.pos, ref.end);
        });
    }
    function processTypeReferenceDirectives(file) {
        var typeDirectives = ts.map(file.typeReferenceDirectives, function (ref) { return ref.fileName.toLocaleLowerCase(); });
        var resolutions = resolveTypeReferenceDirectiveNamesWorker(typeDirectives, file.fileName);
        for (var i = 0; i < typeDirectives.length; i++) {
            var ref = file.typeReferenceDirectives[i];
            var resolvedTypeReferenceDirective = resolutions[i];
            var fileName = ref.fileName.toLocaleLowerCase();
            ts.setResolvedTypeReferenceDirective(file, fileName, resolvedTypeReferenceDirective);
            processTypeReferenceDirective(fileName, resolvedTypeReferenceDirective, file, ref.pos, ref.end);
        }
    }
    function processTypeReferenceDirective(typeReferenceDirective, resolvedTypeReferenceDirective, refFile, refPos, refEnd) {
        var previousResolution = resolvedTypeReferenceDirectives[typeReferenceDirective];
        if (previousResolution && previousResolution.primary) {
            return;
        }
        var saveResolution = true;
        if (resolvedTypeReferenceDirective) {
            if (resolvedTypeReferenceDirective.primary) {
                processSourceFile(resolvedTypeReferenceDirective.resolvedFileName, false, refFile, refPos, refEnd);
            }
            else {
                if (previousResolution) {
                    if (resolvedTypeReferenceDirective.resolvedFileName !== previousResolution.resolvedFileName) {
                        var otherFileText = host.readFile(resolvedTypeReferenceDirective.resolvedFileName);
                        if (otherFileText !== getSourceFile(previousResolution.resolvedFileName).text) {
                            fileProcessingDiagnostics.add(createDiagnostic(refFile, refPos, refEnd, ts.Diagnostics.Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_library_to_resolve_the_conflict, typeReferenceDirective, resolvedTypeReferenceDirective.resolvedFileName, previousResolution.resolvedFileName));
                        }
                    }
                    saveResolution = false;
                }
                else {
                    processSourceFile(resolvedTypeReferenceDirective.resolvedFileName, false, refFile, refPos, refEnd);
                }
            }
        }
        else {
            fileProcessingDiagnostics.add(createDiagnostic(refFile, refPos, refEnd, ts.Diagnostics.Cannot_find_type_definition_file_for_0, typeReferenceDirective));
        }
        if (saveResolution) {
            resolvedTypeReferenceDirectives[typeReferenceDirective] = resolvedTypeReferenceDirective;
        }
    }
    function createDiagnostic(refFile, refPos, refEnd, message) {
        var args = [];
        for (var _i = 4; _i < arguments.length; _i++) {
            args[_i - 4] = arguments[_i];
        }
        if (refFile === undefined || refPos === undefined || refEnd === undefined) {
            return ts.createCompilerDiagnostic.apply(void 0, [message].concat(args));
        }
        else {
            return ts.createFileDiagnostic.apply(void 0, [refFile, refPos, refEnd - refPos, message].concat(args));
        }
    }
    function getCanonicalFileName(fileName) {
        return host.getCanonicalFileName(fileName);
    }
    function processImportedModules(file) {
        collectExternalModuleReferences(file);
        if (file.imports.length || file.moduleAugmentations.length) {
            file.resolvedModules = ts.createMap();
            var nonGlobalAugmentation = ts.filter(file.moduleAugmentations, function (moduleAugmentation) { return moduleAugmentation.kind === 9; });
            var moduleNames = ts.map(ts.concatenate(file.imports, nonGlobalAugmentation), getTextOfLiteral);
            var resolutions = resolveModuleNamesReusingOldState(moduleNames, ts.getNormalizedAbsolutePath(file.fileName, currentDirectory), file);
            ts.Debug.assert(resolutions.length === moduleNames.length);
            for (var i = 0; i < moduleNames.length; i++) {
                var resolution = resolutions[i];
                ts.setResolvedModule(file, moduleNames[i], resolution);
                if (!resolution) {
                    continue;
                }
                var isFromNodeModulesSearch = resolution.isExternalLibraryImport;
                var isJsFileFromNodeModules = isFromNodeModulesSearch && !ts.extensionIsTypeScript(resolution.extension);
                var resolvedFileName = resolution.resolvedFileName;
                if (isFromNodeModulesSearch) {
                    currentNodeModulesDepth++;
                }
                var elideImport = isJsFileFromNodeModules && currentNodeModulesDepth > maxNodeModuleJsDepth;
                var shouldAddFile = resolvedFileName && !getResolutionDiagnostic(options, resolution) && !options.noResolve && i < file.imports.length && !elideImport;
                if (elideImport) {
                    modulesWithElidedImports[file.path] = true;
                }
                else if (shouldAddFile) {
                    var path = ts.toPath(resolvedFileName, currentDirectory, getCanonicalFileName);
                    var pos = ts.skipTrivia(file.text, file.imports[i].pos);
                    findSourceFile(resolvedFileName, path, false, file, pos, file.imports[i].end);
                }
                if (isFromNodeModulesSearch) {
                    currentNodeModulesDepth--;
                }
            }
        }
        else {
            file.resolvedModules = undefined;
        }
    }
    function computeCommonSourceDirectory(sourceFiles) {
        var fileNames = [];
        for (var _i = 0, sourceFiles_6 = sourceFiles; _i < sourceFiles_6.length; _i++) {
            var file = sourceFiles_6[_i];
            if (!file.isDeclarationFile) {
                fileNames.push(file.fileName);
            }
        }
        return computeCommonSourceDirectoryOfFilenames(fileNames, currentDirectory, getCanonicalFileName);
    }
    function checkSourceFilesBelongToPath(sourceFiles, rootDirectory) {
        var allFilesBelongToPath = true;
        if (sourceFiles) {
            var absoluteRootDirectoryPath = host.getCanonicalFileName(ts.getNormalizedAbsolutePath(rootDirectory, currentDirectory));
            for (var _i = 0, sourceFiles_7 = sourceFiles; _i < sourceFiles_7.length; _i++) {
                var sourceFile = sourceFiles_7[_i];
                if (!ts.isDeclarationFile(sourceFile)) {
                    var absoluteSourceFilePath = host.getCanonicalFileName(ts.getNormalizedAbsolutePath(sourceFile.fileName, currentDirectory));
                    if (absoluteSourceFilePath.indexOf(absoluteRootDirectoryPath) !== 0) {
                        programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.File_0_is_not_under_rootDir_1_rootDir_is_expected_to_contain_all_source_files, sourceFile.fileName, options.rootDir));
                        allFilesBelongToPath = false;
                    }
                }
            }
        }
        return allFilesBelongToPath;
    }
    function verifyCompilerOptions() {
        if (options.isolatedModules) {
            if (options.declaration) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "declaration", "isolatedModules"));
            }
            if (options.noEmitOnError) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "noEmitOnError", "isolatedModules"));
            }
            if (options.out) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "out", "isolatedModules"));
            }
            if (options.outFile) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "outFile", "isolatedModules"));
            }
        }
        if (options.inlineSourceMap) {
            if (options.sourceMap) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "sourceMap", "inlineSourceMap"));
            }
            if (options.mapRoot) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "mapRoot", "inlineSourceMap"));
            }
        }
        if (options.paths && options.baseUrl === undefined) {
            programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_paths_cannot_be_used_without_specifying_baseUrl_option));
        }
        if (options.paths) {
            for (var key in options.paths) {
                if (!ts.hasProperty(options.paths, key)) {
                    continue;
                }
                if (!ts.hasZeroOrOneAsteriskCharacter(key)) {
                    programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Pattern_0_can_have_at_most_one_Asterisk_character, key));
                }
                if (ts.isArray(options.paths[key])) {
                    if (options.paths[key].length === 0) {
                        programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Substitutions_for_pattern_0_shouldn_t_be_an_empty_array, key));
                    }
                    for (var _i = 0, _a = options.paths[key]; _i < _a.length; _i++) {
                        var subst = _a[_i];
                        var typeOfSubst = typeof subst;
                        if (typeOfSubst === "string") {
                            if (!ts.hasZeroOrOneAsteriskCharacter(subst)) {
                                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Substitution_0_in_pattern_1_in_can_have_at_most_one_Asterisk_character, subst, key));
                            }
                        }
                        else {
                            programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Substitution_0_for_pattern_1_has_incorrect_type_expected_string_got_2, subst, key, typeOfSubst));
                        }
                    }
                }
                else {
                    programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Substitutions_for_pattern_0_should_be_an_array, key));
                }
            }
        }
        if (!options.sourceMap && !options.inlineSourceMap) {
            if (options.inlineSources) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_can_only_be_used_when_either_option_inlineSourceMap_or_option_sourceMap_is_provided, "inlineSources"));
            }
            if (options.sourceRoot) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_can_only_be_used_when_either_option_inlineSourceMap_or_option_sourceMap_is_provided, "sourceRoot"));
            }
        }
        if (options.out && options.outFile) {
            programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "out", "outFile"));
        }
        if (options.mapRoot && !options.sourceMap) {
            programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1, "mapRoot", "sourceMap"));
        }
        if (options.declarationDir) {
            if (!options.declaration) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1, "declarationDir", "declaration"));
            }
            if (options.out || options.outFile) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "declarationDir", options.out ? "out" : "outFile"));
            }
        }
        if (options.lib && options.noLib) {
            programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "lib", "noLib"));
        }
        if (options.noImplicitUseStrict && options.alwaysStrict) {
            programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "noImplicitUseStrict", "alwaysStrict"));
        }
        var languageVersion = options.target || 0;
        var outFile = options.outFile || options.out;
        var firstNonAmbientExternalModuleSourceFile = ts.forEach(files, function (f) { return ts.isExternalModule(f) && !ts.isDeclarationFile(f) ? f : undefined; });
        if (options.isolatedModules) {
            if (options.module === ts.ModuleKind.None && languageVersion < 2) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_isolatedModules_can_only_be_used_when_either_option_module_is_provided_or_option_target_is_ES2015_or_higher));
            }
            var firstNonExternalModuleSourceFile = ts.forEach(files, function (f) { return !ts.isExternalModule(f) && !ts.isDeclarationFile(f) ? f : undefined; });
            if (firstNonExternalModuleSourceFile) {
                var span_7 = ts.getErrorSpanForNode(firstNonExternalModuleSourceFile, firstNonExternalModuleSourceFile);
                programDiagnostics.add(ts.createFileDiagnostic(firstNonExternalModuleSourceFile, span_7.start, span_7.length, ts.Diagnostics.Cannot_compile_namespaces_when_the_isolatedModules_flag_is_provided));
            }
        }
        else if (firstNonAmbientExternalModuleSourceFile && languageVersion < 2 && options.module === ts.ModuleKind.None) {
            var span_8 = ts.getErrorSpanForNode(firstNonAmbientExternalModuleSourceFile, firstNonAmbientExternalModuleSourceFile.externalModuleIndicator);
            programDiagnostics.add(ts.createFileDiagnostic(firstNonAmbientExternalModuleSourceFile, span_8.start, span_8.length, ts.Diagnostics.Cannot_use_imports_exports_or_module_augmentations_when_module_is_none));
        }
        if (outFile) {
            if (options.module && !(options.module === ts.ModuleKind.AMD || options.module === ts.ModuleKind.System)) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Only_amd_and_system_modules_are_supported_alongside_0, options.out ? "out" : "outFile"));
            }
            else if (options.module === undefined && firstNonAmbientExternalModuleSourceFile) {
                var span_9 = ts.getErrorSpanForNode(firstNonAmbientExternalModuleSourceFile, firstNonAmbientExternalModuleSourceFile.externalModuleIndicator);
                programDiagnostics.add(ts.createFileDiagnostic(firstNonAmbientExternalModuleSourceFile, span_9.start, span_9.length, ts.Diagnostics.Cannot_compile_modules_using_option_0_unless_the_module_flag_is_amd_or_system, options.out ? "out" : "outFile"));
            }
        }
        if (options.outDir ||
            options.sourceRoot ||
            options.mapRoot) {
            var dir = getCommonSourceDirectory();
            if (options.outDir && dir === "" && ts.forEach(files, function (file) { return ts.getRootLength(file.fileName) > 1; })) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_find_the_common_subdirectory_path_for_the_input_files));
            }
        }
        if (!options.noEmit && options.allowJs && options.declaration) {
            programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "allowJs", "declaration"));
        }
        if (options.emitDecoratorMetadata &&
            !options.experimentalDecorators) {
            programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1, "emitDecoratorMetadata", "experimentalDecorators"));
        }
        if (options.jsxFactory) {
            if (options.reactNamespace) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "reactNamespace", "jsxFactory"));
            }
            if (!ts.parseIsolatedEntityName(options.jsxFactory, languageVersion)) {
                programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Invalid_value_for_jsxFactory_0_is_not_a_valid_identifier_or_qualified_name, options.jsxFactory));
            }
        }
        else if (options.reactNamespace && !ts.isIdentifierText(options.reactNamespace, languageVersion)) {
            programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Invalid_value_for_reactNamespace_0_is_not_a_valid_identifier, options.reactNamespace));
        }
        if (!options.noEmit && !options.suppressOutputPathCheck) {
            var emitHost = getEmitHost();
            var emitFilesSeen_1 = ts.createFileMap(!host.useCaseSensitiveFileNames() ? function (key) { return key.toLocaleLowerCase(); } : undefined);
            ts.forEachExpectedEmitFile(emitHost, function (emitFileNames) {
                verifyEmitFilePath(emitFileNames.jsFilePath, emitFilesSeen_1);
                verifyEmitFilePath(emitFileNames.declarationFilePath, emitFilesSeen_1);
            });
        }
        function verifyEmitFilePath(emitFileName, emitFilesSeen) {
            if (emitFileName) {
                var emitFilePath = ts.toPath(emitFileName, currentDirectory, getCanonicalFileName);
                if (filesByName.contains(emitFilePath)) {
                    var chain_1;
                    if (!options.configFilePath) {
                        chain_1 = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript_files_Learn_more_at_https_Colon_Slash_Slashaka_ms_Slashtsconfig);
                    }
                    chain_1 = ts.chainDiagnosticMessages(chain_1, ts.Diagnostics.Cannot_write_file_0_because_it_would_overwrite_input_file, emitFileName);
                    blockEmittingOfFile(emitFileName, ts.createCompilerDiagnosticFromMessageChain(chain_1));
                }
                if (emitFilesSeen.contains(emitFilePath)) {
                    blockEmittingOfFile(emitFileName, ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_write_file_0_because_it_would_be_overwritten_by_multiple_input_files, emitFileName));
                }
                else {
                    emitFilesSeen.set(emitFilePath, true);
                }
            }
        }
    }
    function blockEmittingOfFile(emitFileName, diag) {
        hasEmitBlockingDiagnostics.set(ts.toPath(emitFileName, currentDirectory, getCanonicalFileName), true);
        programDiagnostics.add(diag);
    }
}
ts.createProgram = createProgram;
function getResolutionDiagnostic(options, _a) {
    var extension = _a.extension;
    switch (extension) {
        case ts.Extension.Ts:
        case ts.Extension.Dts:
            return undefined;
        case ts.Extension.Tsx:
            return needJsx();
        case ts.Extension.Jsx:
            return needJsx() || needAllowJs();
        case ts.Extension.Js:
            return needAllowJs();
    }
    function needJsx() {
        return options.jsx ? undefined : ts.Diagnostics.Module_0_was_resolved_to_1_but_jsx_is_not_set;
    }
    function needAllowJs() {
        return options.allowJs ? undefined : ts.Diagnostics.Module_0_was_resolved_to_1_but_allowJs_is_not_set;
    }
}
ts.getResolutionDiagnostic = getResolutionDiagnostic;

})(ts || (ts = {})); var ts; (function (ts) {

ts.compileOnSaveCommandLineOption = { name: "compileOnSave", type: "boolean" };
ts.optionDeclarations = [
    {
        name: "charset",
        type: "string",
    },
    ts.compileOnSaveCommandLineOption,
    {
        name: "declaration",
        shortName: "d",
        type: "boolean",
        description: ts.Diagnostics.Generates_corresponding_d_ts_file,
    },
    {
        name: "declarationDir",
        type: "string",
        isFilePath: true,
        paramType: ts.Diagnostics.DIRECTORY,
    },
    {
        name: "diagnostics",
        type: "boolean",
    },
    {
        name: "extendedDiagnostics",
        type: "boolean",
        experimental: true
    },
    {
        name: "emitBOM",
        type: "boolean"
    },
    {
        name: "help",
        shortName: "h",
        type: "boolean",
        description: ts.Diagnostics.Print_this_message,
    },
    {
        name: "help",
        shortName: "?",
        type: "boolean"
    },
    {
        name: "init",
        type: "boolean",
        description: ts.Diagnostics.Initializes_a_TypeScript_project_and_creates_a_tsconfig_json_file,
    },
    {
        name: "inlineSourceMap",
        type: "boolean",
    },
    {
        name: "inlineSources",
        type: "boolean",
    },
    {
        name: "jsx",
        type: ts.createMap({
            "preserve": 1,
            "react": 2
        }),
        paramType: ts.Diagnostics.KIND,
        description: ts.Diagnostics.Specify_JSX_code_generation_Colon_preserve_or_react,
    },
    {
        name: "reactNamespace",
        type: "string",
        description: ts.Diagnostics.Specify_the_object_invoked_for_createElement_and_spread_when_targeting_react_JSX_emit
    },
    {
        name: "jsxFactory",
        type: "string",
        description: ts.Diagnostics.Specify_the_JSX_factory_function_to_use_when_targeting_react_JSX_emit_e_g_React_createElement_or_h
    },
    {
        name: "listFiles",
        type: "boolean",
    },
    {
        name: "locale",
        type: "string",
    },
    {
        name: "mapRoot",
        type: "string",
        isFilePath: true,
        description: ts.Diagnostics.Specify_the_location_where_debugger_should_locate_map_files_instead_of_generated_locations,
        paramType: ts.Diagnostics.LOCATION,
    },
    {
        name: "module",
        shortName: "m",
        type: ts.createMap({
            "none": ts.ModuleKind.None,
            "commonjs": ts.ModuleKind.CommonJS,
            "amd": ts.ModuleKind.AMD,
            "system": ts.ModuleKind.System,
            "umd": ts.ModuleKind.UMD,
            "es6": ts.ModuleKind.ES2015,
            "es2015": ts.ModuleKind.ES2015,
        }),
        description: ts.Diagnostics.Specify_module_code_generation_Colon_commonjs_amd_system_umd_or_es2015,
        paramType: ts.Diagnostics.KIND,
    },
    {
        name: "newLine",
        type: ts.createMap({
            "crlf": 0,
            "lf": 1
        }),
        description: ts.Diagnostics.Specify_the_end_of_line_sequence_to_be_used_when_emitting_files_Colon_CRLF_dos_or_LF_unix,
        paramType: ts.Diagnostics.NEWLINE,
    },
    {
        name: "noEmit",
        type: "boolean",
        description: ts.Diagnostics.Do_not_emit_outputs,
    },
    {
        name: "noEmitHelpers",
        type: "boolean"
    },
    {
        name: "noEmitOnError",
        type: "boolean",
        description: ts.Diagnostics.Do_not_emit_outputs_if_any_errors_were_reported,
    },
    {
        name: "noErrorTruncation",
        type: "boolean"
    },
    {
        name: "noImplicitAny",
        type: "boolean",
        description: ts.Diagnostics.Raise_error_on_expressions_and_declarations_with_an_implied_any_type,
    },
    {
        name: "noImplicitThis",
        type: "boolean",
        description: ts.Diagnostics.Raise_error_on_this_expressions_with_an_implied_any_type,
    },
    {
        name: "noUnusedLocals",
        type: "boolean",
        description: ts.Diagnostics.Report_errors_on_unused_locals,
    },
    {
        name: "noUnusedParameters",
        type: "boolean",
        description: ts.Diagnostics.Report_errors_on_unused_parameters,
    },
    {
        name: "noLib",
        type: "boolean",
    },
    {
        name: "noResolve",
        type: "boolean",
    },
    {
        name: "skipDefaultLibCheck",
        type: "boolean",
    },
    {
        name: "skipLibCheck",
        type: "boolean",
        description: ts.Diagnostics.Skip_type_checking_of_declaration_files,
    },
    {
        name: "out",
        type: "string",
        isFilePath: false,
        paramType: ts.Diagnostics.FILE,
    },
    {
        name: "outFile",
        type: "string",
        isFilePath: true,
        description: ts.Diagnostics.Concatenate_and_emit_output_to_single_file,
        paramType: ts.Diagnostics.FILE,
    },
    {
        name: "outDir",
        type: "string",
        isFilePath: true,
        description: ts.Diagnostics.Redirect_output_structure_to_the_directory,
        paramType: ts.Diagnostics.DIRECTORY,
    },
    {
        name: "preserveConstEnums",
        type: "boolean",
        description: ts.Diagnostics.Do_not_erase_const_enum_declarations_in_generated_code
    },
    {
        name: "pretty",
        description: ts.Diagnostics.Stylize_errors_and_messages_using_color_and_context_experimental,
        type: "boolean"
    },
    {
        name: "project",
        shortName: "p",
        type: "string",
        isFilePath: true,
        description: ts.Diagnostics.Compile_the_project_in_the_given_directory,
        paramType: ts.Diagnostics.DIRECTORY
    },
    {
        name: "removeComments",
        type: "boolean",
        description: ts.Diagnostics.Do_not_emit_comments_to_output,
    },
    {
        name: "rootDir",
        type: "string",
        isFilePath: true,
        paramType: ts.Diagnostics.LOCATION,
        description: ts.Diagnostics.Specify_the_root_directory_of_input_files_Use_to_control_the_output_directory_structure_with_outDir,
    },
    {
        name: "isolatedModules",
        type: "boolean",
    },
    {
        name: "sourceMap",
        type: "boolean",
        description: ts.Diagnostics.Generates_corresponding_map_file,
    },
    {
        name: "sourceRoot",
        type: "string",
        isFilePath: true,
        description: ts.Diagnostics.Specify_the_location_where_debugger_should_locate_TypeScript_files_instead_of_source_locations,
        paramType: ts.Diagnostics.LOCATION,
    },
    {
        name: "suppressExcessPropertyErrors",
        type: "boolean",
        description: ts.Diagnostics.Suppress_excess_property_checks_for_object_literals,
        experimental: true
    },
    {
        name: "suppressImplicitAnyIndexErrors",
        type: "boolean",
        description: ts.Diagnostics.Suppress_noImplicitAny_errors_for_indexing_objects_lacking_index_signatures,
    },
    {
        name: "stripInternal",
        type: "boolean",
        description: ts.Diagnostics.Do_not_emit_declarations_for_code_that_has_an_internal_annotation,
        experimental: true
    },
    {
        name: "target",
        shortName: "t",
        type: ts.createMap({
            "es3": 0,
            "es5": 1,
            "es6": 2,
            "es2015": 2,
            "es2016": 3,
            "es2017": 4,
            "esnext": 5,
        }),
        description: ts.Diagnostics.Specify_ECMAScript_target_version_Colon_ES3_default_ES5_ES2015_ES2016_ES2017_or_ESNEXT,
        paramType: ts.Diagnostics.VERSION,
    },
    {
        name: "version",
        shortName: "v",
        type: "boolean",
        description: ts.Diagnostics.Print_the_compiler_s_version,
    },
    {
        name: "watch",
        shortName: "w",
        type: "boolean",
        description: ts.Diagnostics.Watch_input_files,
    },
    {
        name: "experimentalDecorators",
        type: "boolean",
        description: ts.Diagnostics.Enables_experimental_support_for_ES7_decorators
    },
    {
        name: "emitDecoratorMetadata",
        type: "boolean",
        experimental: true,
        description: ts.Diagnostics.Enables_experimental_support_for_emitting_type_metadata_for_decorators
    },
    {
        name: "moduleResolution",
        type: ts.createMap({
            "node": ts.ModuleResolutionKind.NodeJs,
            "classic": ts.ModuleResolutionKind.Classic,
        }),
        description: ts.Diagnostics.Specify_module_resolution_strategy_Colon_node_Node_js_or_classic_TypeScript_pre_1_6,
        paramType: ts.Diagnostics.STRATEGY,
    },
    {
        name: "allowUnusedLabels",
        type: "boolean",
        description: ts.Diagnostics.Do_not_report_errors_on_unused_labels
    },
    {
        name: "noImplicitReturns",
        type: "boolean",
        description: ts.Diagnostics.Report_error_when_not_all_code_paths_in_function_return_a_value
    },
    {
        name: "noFallthroughCasesInSwitch",
        type: "boolean",
        description: ts.Diagnostics.Report_errors_for_fallthrough_cases_in_switch_statement
    },
    {
        name: "allowUnreachableCode",
        type: "boolean",
        description: ts.Diagnostics.Do_not_report_errors_on_unreachable_code
    },
    {
        name: "forceConsistentCasingInFileNames",
        type: "boolean",
        description: ts.Diagnostics.Disallow_inconsistently_cased_references_to_the_same_file
    },
    {
        name: "baseUrl",
        type: "string",
        isFilePath: true,
        description: ts.Diagnostics.Base_directory_to_resolve_non_absolute_module_names
    },
    {
        name: "paths",
        type: "object",
        isTSConfigOnly: true
    },
    {
        name: "rootDirs",
        type: "list",
        isTSConfigOnly: true,
        element: {
            name: "rootDirs",
            type: "string",
            isFilePath: true
        }
    },
    {
        name: "typeRoots",
        type: "list",
        element: {
            name: "typeRoots",
            type: "string",
            isFilePath: true
        }
    },
    {
        name: "types",
        type: "list",
        element: {
            name: "types",
            type: "string"
        },
        description: ts.Diagnostics.Type_declaration_files_to_be_included_in_compilation
    },
    {
        name: "traceResolution",
        type: "boolean",
        description: ts.Diagnostics.Enable_tracing_of_the_name_resolution_process
    },
    {
        name: "allowJs",
        type: "boolean",
        description: ts.Diagnostics.Allow_javascript_files_to_be_compiled
    },
    {
        name: "allowSyntheticDefaultImports",
        type: "boolean",
        description: ts.Diagnostics.Allow_default_imports_from_modules_with_no_default_export_This_does_not_affect_code_emit_just_typechecking
    },
    {
        name: "noImplicitUseStrict",
        type: "boolean",
        description: ts.Diagnostics.Do_not_emit_use_strict_directives_in_module_output
    },
    {
        name: "maxNodeModuleJsDepth",
        type: "number",
        description: ts.Diagnostics.The_maximum_dependency_depth_to_search_under_node_modules_and_load_JavaScript_files
    },
    {
        name: "listEmittedFiles",
        type: "boolean"
    },
    {
        name: "lib",
        type: "list",
        element: {
            name: "lib",
            type: ts.createMap({
                "es5": "lib.es5.d.ts",
                "es6": "lib.es2015.d.ts",
                "es2015": "lib.es2015.d.ts",
                "es7": "lib.es2016.d.ts",
                "es2016": "lib.es2016.d.ts",
                "es2017": "lib.es2017.d.ts",
                "dom": "lib.dom.d.ts",
                "dom.iterable": "lib.dom.iterable.d.ts",
                "webworker": "lib.webworker.d.ts",
                "scripthost": "lib.scripthost.d.ts",
                "es2015.core": "lib.es2015.core.d.ts",
                "es2015.collection": "lib.es2015.collection.d.ts",
                "es2015.generator": "lib.es2015.generator.d.ts",
                "es2015.iterable": "lib.es2015.iterable.d.ts",
                "es2015.promise": "lib.es2015.promise.d.ts",
                "es2015.proxy": "lib.es2015.proxy.d.ts",
                "es2015.reflect": "lib.es2015.reflect.d.ts",
                "es2015.symbol": "lib.es2015.symbol.d.ts",
                "es2015.symbol.wellknown": "lib.es2015.symbol.wellknown.d.ts",
                "es2016.array.include": "lib.es2016.array.include.d.ts",
                "es2017.object": "lib.es2017.object.d.ts",
                "es2017.sharedmemory": "lib.es2017.sharedmemory.d.ts",
                "es2017.string": "lib.es2017.string.d.ts",
            }),
        },
        description: ts.Diagnostics.Specify_library_files_to_be_included_in_the_compilation_Colon
    },
    {
        name: "disableSizeLimit",
        type: "boolean"
    },
    {
        name: "strictNullChecks",
        type: "boolean",
        description: ts.Diagnostics.Enable_strict_null_checks
    },
    {
        name: "importHelpers",
        type: "boolean",
        description: ts.Diagnostics.Import_emit_helpers_from_tslib
    },
    {
        name: "alwaysStrict",
        type: "boolean",
        description: ts.Diagnostics.Parse_in_strict_mode_and_emit_use_strict_for_each_source_file
    }
];
ts.typeAcquisitionDeclarations = [
    {
        name: "enableAutoDiscovery",
        type: "boolean",
    },
    {
        name: "enable",
        type: "boolean",
    },
    {
        name: "include",
        type: "list",
        element: {
            name: "include",
            type: "string"
        }
    },
    {
        name: "exclude",
        type: "list",
        element: {
            name: "exclude",
            type: "string"
        }
    }
];
ts.defaultInitCompilerOptions = {
    module: ts.ModuleKind.CommonJS,
    target: 1,
    noImplicitAny: false,
    sourceMap: false,
};
var optionNameMapCache;
function convertEnableAutoDiscoveryToEnable(typeAcquisition) {
    if (typeAcquisition && typeAcquisition.enableAutoDiscovery !== undefined && typeAcquisition.enable === undefined) {
        var result = {
            enable: typeAcquisition.enableAutoDiscovery,
            include: typeAcquisition.include || [],
            exclude: typeAcquisition.exclude || []
        };
        return result;
    }
    return typeAcquisition;
}
ts.convertEnableAutoDiscoveryToEnable = convertEnableAutoDiscoveryToEnable;
function getOptionNameMap() {
    if (optionNameMapCache) {
        return optionNameMapCache;
    }
    var optionNameMap = ts.createMap();
    var shortOptionNames = ts.createMap();
    ts.forEach(ts.optionDeclarations, function (option) {
        optionNameMap[option.name.toLowerCase()] = option;
        if (option.shortName) {
            shortOptionNames[option.shortName] = option.name;
        }
    });
    optionNameMapCache = { optionNameMap: optionNameMap, shortOptionNames: shortOptionNames };
    return optionNameMapCache;
}
ts.getOptionNameMap = getOptionNameMap;
function createCompilerDiagnosticForInvalidCustomType(opt) {
    var namesOfType = Object.keys(opt.type).map(function (key) { return "'" + key + "'"; }).join(", ");
    return ts.createCompilerDiagnostic(ts.Diagnostics.Argument_for_0_option_must_be_Colon_1, "--" + opt.name, namesOfType);
}
ts.createCompilerDiagnosticForInvalidCustomType = createCompilerDiagnosticForInvalidCustomType;
function parseCustomTypeOption(opt, value, errors) {
    return convertJsonOptionOfCustomType(opt, trimString(value || ""), errors);
}
ts.parseCustomTypeOption = parseCustomTypeOption;
function parseListTypeOption(opt, value, errors) {
    if (value === void 0) { value = ""; }
    value = trimString(value);
    if (ts.startsWith(value, "-")) {
        return undefined;
    }
    if (value === "") {
        return [];
    }
    var values = value.split(",");
    switch (opt.element.type) {
        case "number":
            return ts.map(values, parseInt);
        case "string":
            return ts.map(values, function (v) { return v || ""; });
        default:
            return ts.filter(ts.map(values, function (v) { return parseCustomTypeOption(opt.element, v, errors); }), function (v) { return !!v; });
    }
}
ts.parseListTypeOption = parseListTypeOption;
function parseCommandLine(commandLine, readFile) {
    var options = {};
    var fileNames = [];
    var errors = [];
    var _a = getOptionNameMap(), optionNameMap = _a.optionNameMap, shortOptionNames = _a.shortOptionNames;
    parseStrings(commandLine);
    return {
        options: options,
        fileNames: fileNames,
        errors: errors
    };
    function parseStrings(args) {
        var i = 0;
        while (i < args.length) {
            var s = args[i];
            i++;
            if (s.charCodeAt(0) === 64) {
                parseResponseFile(s.slice(1));
            }
            else if (s.charCodeAt(0) === 45) {
                s = s.slice(s.charCodeAt(1) === 45 ? 2 : 1).toLowerCase();
                if (s in shortOptionNames) {
                    s = shortOptionNames[s];
                }
                if (s in optionNameMap) {
                    var opt = optionNameMap[s];
                    if (opt.isTSConfigOnly) {
                        errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_can_only_be_specified_in_tsconfig_json_file, opt.name));
                    }
                    else {
                        if (!args[i] && opt.type !== "boolean") {
                            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Compiler_option_0_expects_an_argument, opt.name));
                        }
                        switch (opt.type) {
                            case "number":
                                options[opt.name] = parseInt(args[i]);
                                i++;
                                break;
                            case "boolean":
                                var optValue = args[i];
                                options[opt.name] = optValue !== "false";
                                if (optValue === "false" || optValue === "true") {
                                    i++;
                                }
                                break;
                            case "string":
                                options[opt.name] = args[i] || "";
                                i++;
                                break;
                            case "list":
                                var result = parseListTypeOption(opt, args[i], errors);
                                options[opt.name] = result || [];
                                if (result) {
                                    i++;
                                }
                                break;
                            default:
                                options[opt.name] = parseCustomTypeOption(opt, args[i], errors);
                                i++;
                                break;
                        }
                    }
                }
                else {
                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unknown_compiler_option_0, s));
                }
            }
            else {
                fileNames.push(s);
            }
        }
    }
    function parseResponseFile(fileName) {
        var text = readFile ? readFile(fileName) : ts.sys.readFile(fileName);
        if (!text) {
            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.File_0_not_found, fileName));
            return;
        }
        var args = [];
        var pos = 0;
        while (true) {
            while (pos < text.length && text.charCodeAt(pos) <= 32)
                pos++;
            if (pos >= text.length)
                break;
            var start = pos;
            if (text.charCodeAt(start) === 34) {
                pos++;
                while (pos < text.length && text.charCodeAt(pos) !== 34)
                    pos++;
                if (pos < text.length) {
                    args.push(text.substring(start + 1, pos));
                    pos++;
                }
                else {
                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unterminated_quoted_string_in_response_file_0, fileName));
                }
            }
            else {
                while (text.charCodeAt(pos) > 32)
                    pos++;
                args.push(text.substring(start, pos));
            }
        }
        parseStrings(args);
    }
}
ts.parseCommandLine = parseCommandLine;
function readConfigFile(fileName, readFile) {
    var text = "";
    try {
        text = readFile(fileName);
    }
    catch (e) {
        return { error: ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_read_file_0_Colon_1, fileName, e.message) };
    }
    return parseConfigFileTextToJson(fileName, text);
}
ts.readConfigFile = readConfigFile;
function parseConfigFileTextToJson(fileName, jsonText, stripComments) {
    if (stripComments === void 0) { stripComments = true; }
    try {
        var jsonTextToParse = stripComments ? removeComments(jsonText) : jsonText;
        return { config: /\S/.test(jsonTextToParse) ? JSON.parse(jsonTextToParse) : {} };
    }
    catch (e) {
        return { error: ts.createCompilerDiagnostic(ts.Diagnostics.Failed_to_parse_file_0_Colon_1, fileName, e.message) };
    }
}
ts.parseConfigFileTextToJson = parseConfigFileTextToJson;
function generateTSConfig(options, fileNames) {
    var compilerOptions = ts.extend(options, ts.defaultInitCompilerOptions);
    var configurations = {
        compilerOptions: serializeCompilerOptions(compilerOptions)
    };
    if (fileNames && fileNames.length) {
        configurations.files = fileNames;
    }
    return configurations;
    function getCustomTypeMapOfCommandLineOption(optionDefinition) {
        if (optionDefinition.type === "string" || optionDefinition.type === "number" || optionDefinition.type === "boolean") {
            return undefined;
        }
        else if (optionDefinition.type === "list") {
            return getCustomTypeMapOfCommandLineOption(optionDefinition.element);
        }
        else {
            return optionDefinition.type;
        }
    }
    function getNameOfCompilerOptionValue(value, customTypeMap) {
        for (var key in customTypeMap) {
            if (customTypeMap[key] === value) {
                return key;
            }
        }
        return undefined;
    }
    function serializeCompilerOptions(options) {
        var result = ts.createMap();
        var optionsNameMap = getOptionNameMap().optionNameMap;
        for (var name_44 in options) {
            if (ts.hasProperty(options, name_44)) {
                switch (name_44) {
                    case "init":
                    case "watch":
                    case "version":
                    case "help":
                    case "project":
                        break;
                    default:
                        var value = options[name_44];
                        var optionDefinition = optionsNameMap[name_44.toLowerCase()];
                        if (optionDefinition) {
                            var customTypeMap = getCustomTypeMapOfCommandLineOption(optionDefinition);
                            if (!customTypeMap) {
                                result[name_44] = value;
                            }
                            else {
                                if (optionDefinition.type === "list") {
                                    var convertedValue = [];
                                    for (var _i = 0, _a = value; _i < _a.length; _i++) {
                                        var element = _a[_i];
                                        convertedValue.push(getNameOfCompilerOptionValue(element, customTypeMap));
                                    }
                                    result[name_44] = convertedValue;
                                }
                                else {
                                    result[name_44] = getNameOfCompilerOptionValue(value, customTypeMap);
                                }
                            }
                        }
                        break;
                }
            }
        }
        return result;
    }
}
ts.generateTSConfig = generateTSConfig;
function removeComments(jsonText) {
    var output = "";
    var scanner = ts.createScanner(1, false, 0, jsonText);
    var token;
    while ((token = scanner.scan()) !== 1) {
        switch (token) {
            case 2:
            case 3:
                output += scanner.getTokenText().replace(/\S/g, " ");
                break;
            default:
                output += scanner.getTokenText();
                break;
        }
    }
    return output;
}
function parseJsonConfigFileContent(json, host, basePath, existingOptions, configFileName, resolutionStack, extraFileExtensions) {
    if (existingOptions === void 0) { existingOptions = {}; }
    if (resolutionStack === void 0) { resolutionStack = []; }
    if (extraFileExtensions === void 0) { extraFileExtensions = []; }
    var errors = [];
    var getCanonicalFileName = ts.createGetCanonicalFileName(host.useCaseSensitiveFileNames);
    var resolvedPath = ts.toPath(configFileName || "", basePath, getCanonicalFileName);
    if (resolutionStack.indexOf(resolvedPath) >= 0) {
        return {
            options: {},
            fileNames: [],
            typeAcquisition: {},
            raw: json,
            errors: [ts.createCompilerDiagnostic(ts.Diagnostics.Circularity_detected_while_resolving_configuration_Colon_0, resolutionStack.concat([resolvedPath]).join(" -> "))],
            wildcardDirectories: {}
        };
    }
    var options = convertCompilerOptionsFromJsonWorker(json["compilerOptions"], basePath, errors, configFileName);
    var jsonOptions = json["typeAcquisition"] || json["typingOptions"];
    var typeAcquisition = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
    if (json["extends"]) {
        var _a = [undefined, undefined, undefined, {}], include = _a[0], exclude = _a[1], files = _a[2], baseOptions = _a[3];
        if (typeof json["extends"] === "string") {
            _b = (tryExtendsName(json["extends"]) || [include, exclude, files, baseOptions]), include = _b[0], exclude = _b[1], files = _b[2], baseOptions = _b[3];
        }
        else {
            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, "extends", "string"));
        }
        if (include && !json["include"]) {
            json["include"] = include;
        }
        if (exclude && !json["exclude"]) {
            json["exclude"] = exclude;
        }
        if (files && !json["files"]) {
            json["files"] = files;
        }
        options = ts.assign({}, baseOptions, options);
    }
    options = ts.extend(existingOptions, options);
    options.configFilePath = configFileName;
    var _c = getFileNames(errors), fileNames = _c.fileNames, wildcardDirectories = _c.wildcardDirectories;
    var compileOnSave = convertCompileOnSaveOptionFromJson(json, basePath, errors);
    return {
        options: options,
        fileNames: fileNames,
        typeAcquisition: typeAcquisition,
        raw: json,
        errors: errors,
        wildcardDirectories: wildcardDirectories,
        compileOnSave: compileOnSave
    };
    function tryExtendsName(extendedConfig) {
        if (!(ts.isRootedDiskPath(extendedConfig) || ts.startsWith(ts.normalizeSlashes(extendedConfig), "./") || ts.startsWith(ts.normalizeSlashes(extendedConfig), "../"))) {
            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not, extendedConfig));
            return;
        }
        var extendedConfigPath = ts.toPath(extendedConfig, basePath, getCanonicalFileName);
        if (!host.fileExists(extendedConfigPath) && !ts.endsWith(extendedConfigPath, ".json")) {
            extendedConfigPath = extendedConfigPath + ".json";
            if (!host.fileExists(extendedConfigPath)) {
                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.File_0_does_not_exist, extendedConfig));
                return;
            }
        }
        var extendedResult = readConfigFile(extendedConfigPath, function (path) { return host.readFile(path); });
        if (extendedResult.error) {
            errors.push(extendedResult.error);
            return;
        }
        var extendedDirname = ts.getDirectoryPath(extendedConfigPath);
        var relativeDifference = ts.convertToRelativePath(extendedDirname, basePath, getCanonicalFileName);
        var updatePath = function (path) { return ts.isRootedDiskPath(path) ? path : ts.combinePaths(relativeDifference, path); };
        var result = parseJsonConfigFileContent(extendedResult.config, host, extendedDirname, undefined, ts.getBaseFileName(extendedConfigPath), resolutionStack.concat([resolvedPath]));
        errors.push.apply(errors, result.errors);
        var _a = ts.map(["include", "exclude", "files"], function (key) {
            if (!json[key] && extendedResult.config[key]) {
                return ts.map(extendedResult.config[key], updatePath);
            }
        }), include = _a[0], exclude = _a[1], files = _a[2];
        return [include, exclude, files, result.options];
    }
    function getFileNames(errors) {
        var fileNames;
        if (ts.hasProperty(json, "files")) {
            if (ts.isArray(json["files"])) {
                fileNames = json["files"];
                if (fileNames.length === 0) {
                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.The_files_list_in_config_file_0_is_empty, configFileName || "tsconfig.json"));
                }
            }
            else {
                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, "files", "Array"));
            }
        }
        var includeSpecs;
        if (ts.hasProperty(json, "include")) {
            if (ts.isArray(json["include"])) {
                includeSpecs = json["include"];
            }
            else {
                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, "include", "Array"));
            }
        }
        var excludeSpecs;
        if (ts.hasProperty(json, "exclude")) {
            if (ts.isArray(json["exclude"])) {
                excludeSpecs = json["exclude"];
            }
            else {
                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, "exclude", "Array"));
            }
        }
        else if (ts.hasProperty(json, "excludes")) {
            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unknown_option_excludes_Did_you_mean_exclude));
        }
        else {
            excludeSpecs = includeSpecs ? [] : ["node_modules", "bower_components", "jspm_packages"];
            var outDir = json["compilerOptions"] && json["compilerOptions"]["outDir"];
            if (outDir) {
                excludeSpecs.push(outDir);
            }
        }
        if (fileNames === undefined && includeSpecs === undefined) {
            includeSpecs = ["**/*"];
        }
        var result = matchFileNames(fileNames, includeSpecs, excludeSpecs, basePath, options, host, errors, extraFileExtensions);
        if (result.fileNames.length === 0 && !ts.hasProperty(json, "files") && resolutionStack.length === 0) {
            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2, configFileName || "tsconfig.json", JSON.stringify(includeSpecs || []), JSON.stringify(excludeSpecs || [])));
        }
        return result;
    }
    var _b;
}
ts.parseJsonConfigFileContent = parseJsonConfigFileContent;
function convertCompileOnSaveOptionFromJson(jsonOption, basePath, errors) {
    if (!ts.hasProperty(jsonOption, ts.compileOnSaveCommandLineOption.name)) {
        return false;
    }
    var result = convertJsonOption(ts.compileOnSaveCommandLineOption, jsonOption["compileOnSave"], basePath, errors);
    if (typeof result === "boolean" && result) {
        return result;
    }
    return false;
}
ts.convertCompileOnSaveOptionFromJson = convertCompileOnSaveOptionFromJson;
function convertCompilerOptionsFromJson(jsonOptions, basePath, configFileName) {
    var errors = [];
    var options = convertCompilerOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName);
    return { options: options, errors: errors };
}
ts.convertCompilerOptionsFromJson = convertCompilerOptionsFromJson;
function convertTypeAcquisitionFromJson(jsonOptions, basePath, configFileName) {
    var errors = [];
    var options = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
    return { options: options, errors: errors };
}
ts.convertTypeAcquisitionFromJson = convertTypeAcquisitionFromJson;
function convertCompilerOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
    var options = ts.getBaseFileName(configFileName) === "jsconfig.json"
        ? { allowJs: true, maxNodeModuleJsDepth: 2, allowSyntheticDefaultImports: true, skipLibCheck: true }
        : {};
    convertOptionsFromJson(ts.optionDeclarations, jsonOptions, basePath, options, ts.Diagnostics.Unknown_compiler_option_0, errors);
    return options;
}
function convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
    var options = { enable: ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
    var typeAcquisition = convertEnableAutoDiscoveryToEnable(jsonOptions);
    convertOptionsFromJson(ts.typeAcquisitionDeclarations, typeAcquisition, basePath, options, ts.Diagnostics.Unknown_type_acquisition_option_0, errors);
    return options;
}
function convertOptionsFromJson(optionDeclarations, jsonOptions, basePath, defaultOptions, diagnosticMessage, errors) {
    if (!jsonOptions) {
        return;
    }
    var optionNameMap = ts.arrayToMap(optionDeclarations, function (opt) { return opt.name; });
    for (var id in jsonOptions) {
        if (id in optionNameMap) {
            var opt = optionNameMap[id];
            defaultOptions[opt.name] = convertJsonOption(opt, jsonOptions[id], basePath, errors);
        }
        else {
            errors.push(ts.createCompilerDiagnostic(diagnosticMessage, id));
        }
    }
}
function convertJsonOption(opt, value, basePath, errors) {
    var optType = opt.type;
    var expectedType = typeof optType === "string" ? optType : "string";
    if (optType === "list" && ts.isArray(value)) {
        return convertJsonOptionOfListType(opt, value, basePath, errors);
    }
    else if (typeof value === expectedType) {
        if (typeof optType !== "string") {
            return convertJsonOptionOfCustomType(opt, value, errors);
        }
        else {
            if (opt.isFilePath) {
                value = ts.normalizePath(ts.combinePaths(basePath, value));
                if (value === "") {
                    value = ".";
                }
            }
        }
        return value;
    }
    else {
        errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, opt.name, expectedType));
    }
}
function convertJsonOptionOfCustomType(opt, value, errors) {
    var key = value.toLowerCase();
    if (key in opt.type) {
        return opt.type[key];
    }
    else {
        errors.push(createCompilerDiagnosticForInvalidCustomType(opt));
    }
}
function convertJsonOptionOfListType(option, values, basePath, errors) {
    return ts.filter(ts.map(values, function (v) { return convertJsonOption(option.element, v, basePath, errors); }), function (v) { return !!v; });
}
function trimString(s) {
    return typeof s.trim === "function" ? s.trim() : s.replace(/^[\s]+|[\s]+$/g, "");
}
var invalidTrailingRecursionPattern = /(^|\/)\*\*\/?$/;
var invalidMultipleRecursionPatterns = /(^|\/)\*\*\/(.*\/)?\*\*($|\/)/;
var invalidDotDotAfterRecursiveWildcardPattern = /(^|\/)\*\*\/(.*\/)?\.\.($|\/)/;
var watchRecursivePattern = /\/[^/]*?[*?][^/]*\//;
var wildcardDirectoryPattern = /^[^*?]*(?=\/[^/]*[*?])/;
function matchFileNames(fileNames, include, exclude, basePath, options, host, errors, extraFileExtensions) {
    basePath = ts.normalizePath(basePath);
    var keyMapper = host.useCaseSensitiveFileNames ? caseSensitiveKeyMapper : caseInsensitiveKeyMapper;
    var literalFileMap = ts.createMap();
    var wildcardFileMap = ts.createMap();
    if (include) {
        include = validateSpecs(include, errors, false);
    }
    if (exclude) {
        exclude = validateSpecs(exclude, errors, true);
    }
    var wildcardDirectories = getWildcardDirectories(include, exclude, basePath, host.useCaseSensitiveFileNames);
    var supportedExtensions = ts.getSupportedExtensions(options, extraFileExtensions);
    if (fileNames) {
        for (var _i = 0, fileNames_1 = fileNames; _i < fileNames_1.length; _i++) {
            var fileName = fileNames_1[_i];
            var file = ts.combinePaths(basePath, fileName);
            literalFileMap[keyMapper(file)] = file;
        }
    }
    if (include && include.length > 0) {
        for (var _a = 0, _b = host.readDirectory(basePath, supportedExtensions, exclude, include); _a < _b.length; _a++) {
            var file = _b[_a];
            if (hasFileWithHigherPriorityExtension(file, literalFileMap, wildcardFileMap, supportedExtensions, keyMapper)) {
                continue;
            }
            removeWildcardFilesWithLowerPriorityExtension(file, wildcardFileMap, supportedExtensions, keyMapper);
            var key = keyMapper(file);
            if (!(key in literalFileMap) && !(key in wildcardFileMap)) {
                wildcardFileMap[key] = file;
            }
        }
    }
    var literalFiles = ts.reduceProperties(literalFileMap, addFileToOutput, []);
    var wildcardFiles = ts.reduceProperties(wildcardFileMap, addFileToOutput, []);
    wildcardFiles.sort(host.useCaseSensitiveFileNames ? ts.compareStrings : ts.compareStringsCaseInsensitive);
    return {
        fileNames: literalFiles.concat(wildcardFiles),
        wildcardDirectories: wildcardDirectories
    };
}
function validateSpecs(specs, errors, allowTrailingRecursion) {
    var validSpecs = [];
    for (var _i = 0, specs_2 = specs; _i < specs_2.length; _i++) {
        var spec = specs_2[_i];
        if (!allowTrailingRecursion && invalidTrailingRecursionPattern.test(spec)) {
            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.File_specification_cannot_end_in_a_recursive_directory_wildcard_Asterisk_Asterisk_Colon_0, spec));
        }
        else if (invalidMultipleRecursionPatterns.test(spec)) {
            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.File_specification_cannot_contain_multiple_recursive_directory_wildcards_Asterisk_Asterisk_Colon_0, spec));
        }
        else if (invalidDotDotAfterRecursiveWildcardPattern.test(spec)) {
            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.File_specification_cannot_contain_a_parent_directory_that_appears_after_a_recursive_directory_wildcard_Asterisk_Asterisk_Colon_0, spec));
        }
        else {
            validSpecs.push(spec);
        }
    }
    return validSpecs;
}
function getWildcardDirectories(include, exclude, path, useCaseSensitiveFileNames) {
    var rawExcludeRegex = ts.getRegularExpressionForWildcard(exclude, path, "exclude");
    var excludeRegex = rawExcludeRegex && new RegExp(rawExcludeRegex, useCaseSensitiveFileNames ? "" : "i");
    var wildcardDirectories = ts.createMap();
    if (include !== undefined) {
        var recursiveKeys = [];
        for (var _i = 0, include_1 = include; _i < include_1.length; _i++) {
            var file = include_1[_i];
            var spec = ts.normalizePath(ts.combinePaths(path, file));
            if (excludeRegex && excludeRegex.test(spec)) {
                continue;
            }
            var match = getWildcardDirectoryFromSpec(spec, useCaseSensitiveFileNames);
            if (match) {
                var key = match.key, flags = match.flags;
                var existingFlags = wildcardDirectories[key];
                if (existingFlags === undefined || existingFlags < flags) {
                    wildcardDirectories[key] = flags;
                    if (flags === 1) {
                        recursiveKeys.push(key);
                    }
                }
            }
        }
        for (var key in wildcardDirectories) {
            for (var _a = 0, recursiveKeys_1 = recursiveKeys; _a < recursiveKeys_1.length; _a++) {
                var recursiveKey = recursiveKeys_1[_a];
                if (key !== recursiveKey && ts.containsPath(recursiveKey, key, path, !useCaseSensitiveFileNames)) {
                    delete wildcardDirectories[key];
                }
            }
        }
    }
    return wildcardDirectories;
}
function getWildcardDirectoryFromSpec(spec, useCaseSensitiveFileNames) {
    var match = wildcardDirectoryPattern.exec(spec);
    if (match) {
        return {
            key: useCaseSensitiveFileNames ? match[0] : match[0].toLowerCase(),
            flags: watchRecursivePattern.test(spec) ? 1 : 0
        };
    }
    if (ts.isImplicitGlob(spec)) {
        return { key: spec, flags: 1 };
    }
    return undefined;
}
function hasFileWithHigherPriorityExtension(file, literalFiles, wildcardFiles, extensions, keyMapper) {
    var extensionPriority = ts.getExtensionPriority(file, extensions);
    var adjustedExtensionPriority = ts.adjustExtensionPriority(extensionPriority);
    for (var i = 0; i < adjustedExtensionPriority; i++) {
        var higherPriorityExtension = extensions[i];
        var higherPriorityPath = keyMapper(ts.changeExtension(file, higherPriorityExtension));
        if (higherPriorityPath in literalFiles || higherPriorityPath in wildcardFiles) {
            return true;
        }
    }
    return false;
}
function removeWildcardFilesWithLowerPriorityExtension(file, wildcardFiles, extensions, keyMapper) {
    var extensionPriority = ts.getExtensionPriority(file, extensions);
    var nextExtensionPriority = ts.getNextLowestExtensionPriority(extensionPriority);
    for (var i = nextExtensionPriority; i < extensions.length; i++) {
        var lowerPriorityExtension = extensions[i];
        var lowerPriorityPath = keyMapper(ts.changeExtension(file, lowerPriorityExtension));
        delete wildcardFiles[lowerPriorityPath];
    }
}
function addFileToOutput(output, file) {
    output.push(file);
    return output;
}
function caseSensitiveKeyMapper(key) {
    return key;
}
function caseInsensitiveKeyMapper(key) {
    return key.toLowerCase();
}

})(ts || (ts = {})); var ts; (function (ts) {

var defaultFormatDiagnosticsHost = {
    getCurrentDirectory: function () { return ts.sys.getCurrentDirectory(); },
    getNewLine: function () { return ts.sys.newLine; },
    getCanonicalFileName: ts.createGetCanonicalFileName(ts.sys.useCaseSensitiveFileNames)
};
var reportDiagnosticWorker = reportDiagnosticSimply;
function reportDiagnostic(diagnostic, host) {
    reportDiagnosticWorker(diagnostic, host || defaultFormatDiagnosticsHost);
}
function reportDiagnostics(diagnostics, host) {
    for (var _i = 0, diagnostics_2 = diagnostics; _i < diagnostics_2.length; _i++) {
        var diagnostic = diagnostics_2[_i];
        reportDiagnostic(diagnostic, host);
    }
}
function reportEmittedFiles(files) {
    if (!files || files.length == 0) {
        return;
    }
    var currentDir = ts.sys.getCurrentDirectory();
    for (var _i = 0, files_3 = files; _i < files_3.length; _i++) {
        var file = files_3[_i];
        var filepath = ts.getNormalizedAbsolutePath(file, currentDir);
        ts.sys.write("TSFILE: " + filepath + ts.sys.newLine);
    }
}
function countLines(program) {
    var count = 0;
    ts.forEach(program.getSourceFiles(), function (file) {
        count += ts.getLineStarts(file).length;
    });
    return count;
}
function getDiagnosticText(_message) {
    var _args = [];
    for (var _i = 1; _i < arguments.length; _i++) {
        _args[_i - 1] = arguments[_i];
    }
    var diagnostic = ts.createCompilerDiagnostic.apply(undefined, arguments);
    return diagnostic.messageText;
}
function reportDiagnosticSimply(diagnostic, host) {
    ts.sys.write(ts.formatDiagnostics([diagnostic], host));
}
var redForegroundEscapeSequence = "\u001b[91m";
var yellowForegroundEscapeSequence = "\u001b[93m";
var blueForegroundEscapeSequence = "\u001b[93m";
var gutterStyleSequence = "\u001b[100;30m";
var gutterSeparator = " ";
var resetEscapeSequence = "\u001b[0m";
var ellipsis = "...";
var categoryFormatMap = ts.createMap((_a = {},
    _a[ts.DiagnosticCategory.Warning] = yellowForegroundEscapeSequence,
    _a[ts.DiagnosticCategory.Error] = redForegroundEscapeSequence,
    _a[ts.DiagnosticCategory.Message] = blueForegroundEscapeSequence,
    _a));
function formatAndReset(text, formatStyle) {
    return formatStyle + text + resetEscapeSequence;
}
function reportDiagnosticWithColorAndContext(diagnostic, host) {
    var output = "";
    if (diagnostic.file) {
        var start = diagnostic.start, length_4 = diagnostic.length, file = diagnostic.file;
        var _a = ts.getLineAndCharacterOfPosition(file, start), firstLine = _a.line, firstLineChar = _a.character;
        var _b = ts.getLineAndCharacterOfPosition(file, start + length_4), lastLine = _b.line, lastLineChar = _b.character;
        var lastLineInFile = ts.getLineAndCharacterOfPosition(file, file.text.length).line;
        var relativeFileName = host ? ts.convertToRelativePath(file.fileName, host.getCurrentDirectory(), function (fileName) { return host.getCanonicalFileName(fileName); }) : file.fileName;
        var hasMoreThanFiveLines = (lastLine - firstLine) >= 4;
        var gutterWidth = (lastLine + 1 + "").length;
        if (hasMoreThanFiveLines) {
            gutterWidth = Math.max(ellipsis.length, gutterWidth);
        }
        output += ts.sys.newLine;
        for (var i = firstLine; i <= lastLine; i++) {
            if (hasMoreThanFiveLines && firstLine + 1 < i && i < lastLine - 1) {
                output += formatAndReset(padLeft(ellipsis, gutterWidth), gutterStyleSequence) + gutterSeparator + ts.sys.newLine;
                i = lastLine - 1;
            }
            var lineStart = ts.getPositionOfLineAndCharacter(file, i, 0);
            var lineEnd = i < lastLineInFile ? ts.getPositionOfLineAndCharacter(file, i + 1, 0) : file.text.length;
            var lineContent = file.text.slice(lineStart, lineEnd);
            lineContent = lineContent.replace(/\s+$/g, "");
            lineContent = lineContent.replace("\t", " ");
            output += formatAndReset(padLeft(i + 1 + "", gutterWidth), gutterStyleSequence) + gutterSeparator;
            output += lineContent + ts.sys.newLine;
            output += formatAndReset(padLeft("", gutterWidth), gutterStyleSequence) + gutterSeparator;
            output += redForegroundEscapeSequence;
            if (i === firstLine) {
                var lastCharForLine = i === lastLine ? lastLineChar : undefined;
                output += lineContent.slice(0, firstLineChar).replace(/\S/g, " ");
                output += lineContent.slice(firstLineChar, lastCharForLine).replace(/./g, "~");
            }
            else if (i === lastLine) {
                output += lineContent.slice(0, lastLineChar).replace(/./g, "~");
            }
            else {
                output += lineContent.replace(/./g, "~");
            }
            output += resetEscapeSequence;
            output += ts.sys.newLine;
        }
        output += ts.sys.newLine;
        output += relativeFileName + "(" + (firstLine + 1) + "," + (firstLineChar + 1) + "): ";
    }
    var categoryColor = categoryFormatMap[diagnostic.category];
    var category = ts.DiagnosticCategory[diagnostic.category].toLowerCase();
    output += formatAndReset(category, categoryColor) + " TS" + diagnostic.code + ": " + ts.flattenDiagnosticMessageText(diagnostic.messageText, ts.sys.newLine);
    output += ts.sys.newLine + ts.sys.newLine;
    ts.sys.write(output);
}
function reportWatchDiagnostic(diagnostic) {
    var output = new Date().toLocaleTimeString() + " - ";
    if (diagnostic.file) {
        var loc = ts.getLineAndCharacterOfPosition(diagnostic.file, diagnostic.start);
        output += diagnostic.file.fileName + "(" + (loc.line + 1) + "," + (loc.character + 1) + "): ";
    }
    output += "" + ts.flattenDiagnosticMessageText(diagnostic.messageText, ts.sys.newLine) + ts.sys.newLine;
    ts.sys.write(output);
}
function padLeft(s, length) {
    while (s.length < length) {
        s = " " + s;
    }
    return s;
}
function padRight(s, length) {
    while (s.length < length) {
        s = s + " ";
    }
    return s;
}
function isJSONSupported() {
    return typeof JSON === "object" && typeof JSON.parse === "function";
}
function executeCommandLine(args) {
    var commandLine = ts.parseCommandLine(args);
    var configFileName;
    var cachedConfigFileText;
    var configFileWatcher;
    var directoryWatcher;
    var cachedProgram;
    var rootFileNames;
    var compilerOptions;
    var compilerHost;
    var hostGetSourceFile;
    var timerHandleForRecompilation;
    var timerHandleForDirectoryChanges;
    var cachedExistingFiles;
    var hostFileExists;
    if (commandLine.options.locale) {
        if (!isJSONSupported()) {
            reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.The_current_host_does_not_support_the_0_option, "--locale"), undefined);
            return ts.sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
        }
        ts.validateLocaleAndSetLanguage(commandLine.options.locale, ts.sys, commandLine.errors);
    }
    if (commandLine.errors.length > 0) {
        reportDiagnostics(commandLine.errors, compilerHost);
        return ts.sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
    }
    if (commandLine.options.init) {
        writeConfigFile(commandLine.options, commandLine.fileNames);
        return ts.sys.exit(ts.ExitStatus.Success);
    }
    if (commandLine.options.version) {
        printVersion();
        return ts.sys.exit(ts.ExitStatus.Success);
    }
    if (commandLine.options.help) {
        printVersion();
        printHelp();
        return ts.sys.exit(ts.ExitStatus.Success);
    }
    if (commandLine.options.project) {
        if (!isJSONSupported()) {
            reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.The_current_host_does_not_support_the_0_option, "--project"), undefined);
            return ts.sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
        }
        if (commandLine.fileNames.length !== 0) {
            reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.Option_project_cannot_be_mixed_with_source_files_on_a_command_line), undefined);
            return ts.sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
        }
        var fileOrDirectory = ts.normalizePath(commandLine.options.project);
        if (!fileOrDirectory || ts.sys.directoryExists(fileOrDirectory)) {
            configFileName = ts.combinePaths(fileOrDirectory, "tsconfig.json");
            if (!ts.sys.fileExists(configFileName)) {
                reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_find_a_tsconfig_json_file_at_the_specified_directory_Colon_0, commandLine.options.project), undefined);
                return ts.sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
            }
        }
        else {
            configFileName = fileOrDirectory;
            if (!ts.sys.fileExists(configFileName)) {
                reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.The_specified_path_does_not_exist_Colon_0, commandLine.options.project), undefined);
                return ts.sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
            }
        }
    }
    else if (commandLine.fileNames.length === 0 && isJSONSupported()) {
        var searchPath = ts.normalizePath(ts.sys.getCurrentDirectory());
        configFileName = ts.findConfigFile(searchPath, ts.sys.fileExists);
    }
    if (commandLine.fileNames.length === 0 && !configFileName) {
        printVersion();
        printHelp();
        return ts.sys.exit(ts.ExitStatus.Success);
    }
    if (ts.isWatchSet(commandLine.options)) {
        if (!ts.sys.watchFile) {
            reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.The_current_host_does_not_support_the_0_option, "--watch"), undefined);
            return ts.sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
        }
        if (configFileName) {
            configFileWatcher = ts.sys.watchFile(configFileName, configFileChanged);
        }
        if (ts.sys.watchDirectory && configFileName) {
            var directory = ts.getDirectoryPath(configFileName);
            directoryWatcher = ts.sys.watchDirectory(directory == "" ? "." : directory, watchedDirectoryChanged, true);
        }
    }
    performCompilation();
    function parseConfigFile() {
        if (!cachedConfigFileText) {
            try {
                cachedConfigFileText = ts.sys.readFile(configFileName);
            }
            catch (e) {
                var error = ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_read_file_0_Colon_1, configFileName, e.message);
                reportWatchDiagnostic(error);
                ts.sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
                return;
            }
        }
        if (!cachedConfigFileText) {
            var error = ts.createCompilerDiagnostic(ts.Diagnostics.File_0_not_found, configFileName);
            reportDiagnostics([error], undefined);
            ts.sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
            return;
        }
        var result = ts.parseConfigFileTextToJson(configFileName, cachedConfigFileText);
        var configObject = result.config;
        if (!configObject) {
            reportDiagnostics([result.error], undefined);
            ts.sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
            return;
        }
        var cwd = ts.sys.getCurrentDirectory();
        var configParseResult = ts.parseJsonConfigFileContent(configObject, ts.sys, ts.getNormalizedAbsolutePath(ts.getDirectoryPath(configFileName), cwd), commandLine.options, ts.getNormalizedAbsolutePath(configFileName, cwd));
        if (configParseResult.errors.length > 0) {
            reportDiagnostics(configParseResult.errors, undefined);
            ts.sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
            return;
        }
        if (ts.isWatchSet(configParseResult.options)) {
            if (!ts.sys.watchFile) {
                reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.The_current_host_does_not_support_the_0_option, "--watch"), undefined);
                ts.sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
            }
            if (!directoryWatcher && ts.sys.watchDirectory && configFileName) {
                var directory = ts.getDirectoryPath(configFileName);
                directoryWatcher = ts.sys.watchDirectory(directory == "" ? "." : directory, watchedDirectoryChanged, true);
            }
            ;
        }
        return configParseResult;
    }
    function performCompilation() {
        if (!cachedProgram) {
            if (configFileName) {
                var configParseResult = parseConfigFile();
                rootFileNames = configParseResult.fileNames;
                compilerOptions = configParseResult.options;
            }
            else {
                rootFileNames = commandLine.fileNames;
                compilerOptions = commandLine.options;
            }
            compilerHost = ts.createCompilerHost(compilerOptions);
            hostGetSourceFile = compilerHost.getSourceFile;
            compilerHost.getSourceFile = getSourceFile;
            hostFileExists = compilerHost.fileExists;
            compilerHost.fileExists = cachedFileExists;
        }
        if (compilerOptions.pretty) {
            reportDiagnosticWorker = reportDiagnosticWithColorAndContext;
        }
        cachedExistingFiles = ts.createMap();
        var compileResult = compile(rootFileNames, compilerOptions, compilerHost);
        if (!ts.isWatchSet(compilerOptions)) {
            return ts.sys.exit(compileResult.exitStatus);
        }
        setCachedProgram(compileResult.program);
        reportWatchDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.Compilation_complete_Watching_for_file_changes));
    }
    function cachedFileExists(fileName) {
        return fileName in cachedExistingFiles
            ? cachedExistingFiles[fileName]
            : cachedExistingFiles[fileName] = hostFileExists(fileName);
    }
    function getSourceFile(fileName, languageVersion, onError) {
        if (cachedProgram) {
            var sourceFile_1 = cachedProgram.getSourceFile(fileName);
            if (sourceFile_1 && sourceFile_1.fileWatcher) {
                return sourceFile_1;
            }
        }
        var sourceFile = hostGetSourceFile(fileName, languageVersion, onError);
        if (sourceFile && ts.isWatchSet(compilerOptions) && ts.sys.watchFile) {
            sourceFile.fileWatcher = ts.sys.watchFile(sourceFile.fileName, function (_fileName, removed) { return sourceFileChanged(sourceFile, removed); });
        }
        return sourceFile;
    }
    function setCachedProgram(program) {
        if (cachedProgram) {
            var newSourceFiles_1 = program ? program.getSourceFiles() : undefined;
            ts.forEach(cachedProgram.getSourceFiles(), function (sourceFile) {
                if (!(newSourceFiles_1 && ts.contains(newSourceFiles_1, sourceFile))) {
                    if (sourceFile.fileWatcher) {
                        sourceFile.fileWatcher.close();
                        sourceFile.fileWatcher = undefined;
                    }
                }
            });
        }
        cachedProgram = program;
    }
    function sourceFileChanged(sourceFile, removed) {
        sourceFile.fileWatcher.close();
        sourceFile.fileWatcher = undefined;
        if (removed) {
            ts.unorderedRemoveItem(rootFileNames, sourceFile.fileName);
        }
        startTimerForRecompilation();
    }
    function configFileChanged() {
        setCachedProgram(undefined);
        cachedConfigFileText = undefined;
        startTimerForRecompilation();
    }
    function watchedDirectoryChanged(fileName) {
        if (fileName && !ts.isSupportedSourceFileName(fileName, compilerOptions)) {
            return;
        }
        startTimerForHandlingDirectoryChanges();
    }
    function startTimerForHandlingDirectoryChanges() {
        if (!ts.sys.setTimeout || !ts.sys.clearTimeout) {
            return;
        }
        if (timerHandleForDirectoryChanges) {
            ts.sys.clearTimeout(timerHandleForDirectoryChanges);
        }
        timerHandleForDirectoryChanges = ts.sys.setTimeout(directoryChangeHandler, 250);
    }
    function directoryChangeHandler() {
        var parsedCommandLine = parseConfigFile();
        var newFileNames = ts.map(parsedCommandLine.fileNames, compilerHost.getCanonicalFileName);
        var canonicalRootFileNames = ts.map(rootFileNames, compilerHost.getCanonicalFileName);
        if (!ts.arrayIsEqualTo(newFileNames && newFileNames.sort(), canonicalRootFileNames && canonicalRootFileNames.sort())) {
            setCachedProgram(undefined);
            startTimerForRecompilation();
        }
    }
    function startTimerForRecompilation() {
        if (!ts.sys.setTimeout || !ts.sys.clearTimeout) {
            return;
        }
        if (timerHandleForRecompilation) {
            ts.sys.clearTimeout(timerHandleForRecompilation);
        }
        timerHandleForRecompilation = ts.sys.setTimeout(recompile, 250);
    }
    function recompile() {
        timerHandleForRecompilation = undefined;
        reportWatchDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.File_change_detected_Starting_incremental_compilation));
        performCompilation();
    }
}
ts.executeCommandLine = executeCommandLine;
function compile(fileNames, compilerOptions, compilerHost) {
    var hasDiagnostics = compilerOptions.diagnostics || compilerOptions.extendedDiagnostics;
    var statistics;
    if (hasDiagnostics) {
        ts.performance.enable();
        statistics = [];
    }
    var program = ts.createProgram(fileNames, compilerOptions, compilerHost);
    var exitStatus = compileProgram();
    if (compilerOptions.listFiles) {
        ts.forEach(program.getSourceFiles(), function (file) {
            ts.sys.write(file.fileName + ts.sys.newLine);
        });
    }
    if (hasDiagnostics) {
        var memoryUsed = ts.sys.getMemoryUsage ? ts.sys.getMemoryUsage() : -1;
        reportCountStatistic("Files", program.getSourceFiles().length);
        reportCountStatistic("Lines", countLines(program));
        reportCountStatistic("Nodes", program.getNodeCount());
        reportCountStatistic("Identifiers", program.getIdentifierCount());
        reportCountStatistic("Symbols", program.getSymbolCount());
        reportCountStatistic("Types", program.getTypeCount());
        if (memoryUsed >= 0) {
            reportStatisticalValue("Memory used", Math.round(memoryUsed / 1000) + "K");
        }
        var programTime = ts.performance.getDuration("Program");
        var bindTime = ts.performance.getDuration("Bind");
        var checkTime = ts.performance.getDuration("Check");
        var emitTime = ts.performance.getDuration("Emit");
        if (compilerOptions.extendedDiagnostics) {
            ts.performance.forEachMeasure(function (name, duration) { return reportTimeStatistic(name + " time", duration); });
        }
        else {
            reportTimeStatistic("I/O read", ts.performance.getDuration("I/O Read"));
            reportTimeStatistic("I/O write", ts.performance.getDuration("I/O Write"));
            reportTimeStatistic("Parse time", programTime);
            reportTimeStatistic("Bind time", bindTime);
            reportTimeStatistic("Check time", checkTime);
            reportTimeStatistic("Emit time", emitTime);
        }
        reportTimeStatistic("Total time", programTime + bindTime + checkTime + emitTime);
        reportStatistics();
        ts.performance.disable();
    }
    return { program: program, exitStatus: exitStatus };
    function compileProgram() {
        var diagnostics;
        diagnostics = program.getSyntacticDiagnostics();
        if (diagnostics.length === 0) {
            diagnostics = program.getOptionsDiagnostics().concat(program.getGlobalDiagnostics());
            if (diagnostics.length === 0) {
                diagnostics = program.getSemanticDiagnostics();
            }
        }
        var emitOutput = program.emit();
        diagnostics = diagnostics.concat(emitOutput.diagnostics);
        reportDiagnostics(ts.sortAndDeduplicateDiagnostics(diagnostics), compilerHost);
        reportEmittedFiles(emitOutput.emittedFiles);
        if (emitOutput.emitSkipped && diagnostics.length > 0) {
            return ts.ExitStatus.DiagnosticsPresent_OutputsSkipped;
        }
        else if (diagnostics.length > 0) {
            return ts.ExitStatus.DiagnosticsPresent_OutputsGenerated;
        }
        return ts.ExitStatus.Success;
    }
    function reportStatistics() {
        var nameSize = 0;
        var valueSize = 0;
        for (var _i = 0, statistics_1 = statistics; _i < statistics_1.length; _i++) {
            var _a = statistics_1[_i], name_45 = _a.name, value = _a.value;
            if (name_45.length > nameSize) {
                nameSize = name_45.length;
            }
            if (value.length > valueSize) {
                valueSize = value.length;
            }
        }
        for (var _b = 0, statistics_2 = statistics; _b < statistics_2.length; _b++) {
            var _c = statistics_2[_b], name_46 = _c.name, value = _c.value;
            ts.sys.write(padRight(name_46 + ":", nameSize + 2) + padLeft(value.toString(), valueSize) + ts.sys.newLine);
        }
    }
    function reportStatisticalValue(name, value) {
        statistics.push({ name: name, value: value });
    }
    function reportCountStatistic(name, count) {
        reportStatisticalValue(name, "" + count);
    }
    function reportTimeStatistic(name, time) {
        reportStatisticalValue(name, (time / 1000).toFixed(2) + "s");
    }
}
function printVersion() {
    ts.sys.write(getDiagnosticText(ts.Diagnostics.Version_0, ts.version) + ts.sys.newLine);
}
function printHelp() {
    var output = [];
    var syntaxLength = getDiagnosticText(ts.Diagnostics.Syntax_Colon_0, "").length;
    var examplesLength = getDiagnosticText(ts.Diagnostics.Examples_Colon_0, "").length;
    var marginLength = Math.max(syntaxLength, examplesLength);
    var syntax = makePadding(marginLength - syntaxLength);
    syntax += "tsc [" + getDiagnosticText(ts.Diagnostics.options) + "] [" + getDiagnosticText(ts.Diagnostics.file) + " ...]";
    output.push(getDiagnosticText(ts.Diagnostics.Syntax_Colon_0, syntax));
    output.push(ts.sys.newLine + ts.sys.newLine);
    var padding = makePadding(marginLength);
    output.push(getDiagnosticText(ts.Diagnostics.Examples_Colon_0, makePadding(marginLength - examplesLength) + "tsc hello.ts") + ts.sys.newLine);
    output.push(padding + "tsc --outFile file.js file.ts" + ts.sys.newLine);
    output.push(padding + "tsc @args.txt" + ts.sys.newLine);
    output.push(ts.sys.newLine);
    output.push(getDiagnosticText(ts.Diagnostics.Options_Colon) + ts.sys.newLine);
    var optsList = ts.filter(ts.optionDeclarations.slice(), function (v) { return !v.experimental; });
    optsList.sort(function (a, b) { return ts.compareValues(a.name.toLowerCase(), b.name.toLowerCase()); });
    marginLength = 0;
    var usageColumn = [];
    var descriptionColumn = [];
    var optionsDescriptionMap = ts.createMap();
    for (var i = 0; i < optsList.length; i++) {
        var option = optsList[i];
        if (!option.description) {
            continue;
        }
        var usageText_1 = " ";
        if (option.shortName) {
            usageText_1 += "-" + option.shortName;
            usageText_1 += getParamType(option);
            usageText_1 += ", ";
        }
        usageText_1 += "--" + option.name;
        usageText_1 += getParamType(option);
        usageColumn.push(usageText_1);
        var description = void 0;
        if (option.name === "lib") {
            description = getDiagnosticText(option.description);
            var options = [];
            var element = option.element;
            var typeMap = element.type;
            for (var key in typeMap) {
                options.push("'" + key + "'");
            }
            optionsDescriptionMap[description] = options;
        }
        else {
            description = getDiagnosticText(option.description);
        }
        descriptionColumn.push(description);
        marginLength = Math.max(usageText_1.length, marginLength);
    }
    var usageText = " @<" + getDiagnosticText(ts.Diagnostics.file) + ">";
    usageColumn.push(usageText);
    descriptionColumn.push(getDiagnosticText(ts.Diagnostics.Insert_command_line_options_and_files_from_a_file));
    marginLength = Math.max(usageText.length, marginLength);
    for (var i = 0; i < usageColumn.length; i++) {
        var usage = usageColumn[i];
        var description = descriptionColumn[i];
        var kindsList = optionsDescriptionMap[description];
        output.push(usage + makePadding(marginLength - usage.length + 2) + description + ts.sys.newLine);
        if (kindsList) {
            output.push(makePadding(marginLength + 4));
            for (var _i = 0, kindsList_1 = kindsList; _i < kindsList_1.length; _i++) {
                var kind = kindsList_1[_i];
                output.push(kind + " ");
            }
            output.push(ts.sys.newLine);
        }
    }
    for (var _a = 0, output_1 = output; _a < output_1.length; _a++) {
        var line = output_1[_a];
        ts.sys.write(line);
    }
    return;
    function getParamType(option) {
        if (option.paramType !== undefined) {
            return " " + getDiagnosticText(option.paramType);
        }
        return "";
    }
    function makePadding(paddingLength) {
        return Array(paddingLength + 1).join(" ");
    }
}
function writeConfigFile(options, fileNames) {
    var currentDirectory = ts.sys.getCurrentDirectory();
    var file = ts.normalizePath(ts.combinePaths(currentDirectory, "tsconfig.json"));
    if (ts.sys.fileExists(file)) {
        reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.A_tsconfig_json_file_is_already_defined_at_Colon_0, file), undefined);
    }
    else {
        ts.sys.writeFile(file, JSON.stringify(ts.generateTSConfig(options, fileNames), undefined, 4));
        reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.Successfully_created_a_tsconfig_json_file), undefined);
    }
    return;
}
var _a;

})(ts || (ts = {})); if (ts.sys.tryEnableSourceMapsForHost && /^development$/i.test(ts.sys.getEnvironmentVariable(“NODE_ENV”))) {

ts.sys.tryEnableSourceMapsForHost();

} ts.executeCommandLine(ts.sys.args);