// Copyright Joyent, Inc. and other Node contributors. // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the // “Software”), to deal in the Software without restriction, including // without limitation the rights to use, copy, modify, merge, publish, // distribute, sublicense, and/or sell copies of the Software, and to permit // persons to whom the Software is furnished to do so, subject to the // following conditions: // // The above copyright notice and this permission notice shall be included // in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE // USE OR OTHER DEALINGS IN THE SOFTWARE.

var util = require(‘util’);

function Console(stdout, stderr) {

if (!(this instanceof Console)) {
  return new Console(stdout, stderr);
}
if (!stdout || !util.isFunction(stdout.write)) {
  throw new TypeError('Console expects a writable stream instance');
}
if (!stderr) {
  stderr = stdout;
}
var prop = {
  writable: true,
  enumerable: false,
  configurable: true
};
prop.value = stdout;
Object.defineProperty(this, '_stdout', prop);
prop.value = stderr;
Object.defineProperty(this, '_stderr', prop);
prop.value = {};
Object.defineProperty(this, '_times', prop);

// bind the prototype functions to this Console instance
var keys = Object.keys(Console.prototype);
for (var v = 0; v < keys.length; v++) {
  var k = keys[v];
  this[k] = this[k].bind(this);
}

}

Console.prototype.log = function() {

this._stdout.write(util.format.apply(this, arguments) + '\n');

};

Console.prototype.info = Console.prototype.log;

Console.prototype.warn = function() {

this._stderr.write(util.format.apply(this, arguments) + '\n');

};

Console.prototype.error = Console.prototype.warn;

Console.prototype.dir = function(object, options) {

this._stdout.write(util.inspect(object, util._extend({
  customInspect: false
}, options)) + '\n');

};

Console.prototype.time = function(label) {

this._times[label] = Date.now();

};

Console.prototype.timeEnd = function(label) {

var time = this._times[label];
if (!time) {
  throw new Error('No such label: ' + label);
}
var duration = Date.now() - time;
this.log('%s: %dms', label, duration);

};

Console.prototype.trace = function() {

// TODO probably can to do this better with V8's debug object once that is
// exposed.
var err = new Error;
err.name = 'Trace';
err.message = util.format.apply(this, arguments);
Error.captureStackTrace(err, arguments.callee);
this.error(err.stack);

};

Console.prototype.assert = function(expression) {

if (!expression) {
  var arr = Array.prototype.slice.call(arguments, 1);
  require('assert').ok(false, util.format.apply(this, arr));
}

};

module.exports = new Console(process.stdout, process.stderr); module.exports.Console = Console;