class Antlr4::Runtime::Recognizer
Constants
- EOF
Attributes
_interp[RW]
_state_number[RW]
Public Class Methods
new()
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# File lib/antlr4/runtime/recognizer.rb, line 9 def initialize @token_type_map_cache = [] @rule_index_map_cache = [] @_listeners = [] @_listeners << ConsoleErrorListener.instance @_interp = nil @_state_number = -1 end
Public Instance Methods
action(_localctx, _rule_index, _action_index)
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# File lib/antlr4/runtime/recognizer.rb, line 130 def action(_localctx, _rule_index, _action_index) end
add_error_listener(listener)
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# File lib/antlr4/runtime/recognizer.rb, line 104 def add_error_listener(listener) raise NullPointerException, 'listener cannot be nil.' if listener.nil? @_listeners << listener end
error_header(e)
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# File lib/antlr4/runtime/recognizer.rb, line 81 def error_header(e) line = e.getOffendingToken.line charPositionInLine = e.getOffendingToken.char_position_in_line 'line ' + line + ':' + charPositionInLine end
error_listener_dispatch()
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# File lib/antlr4/runtime/recognizer.rb, line 118 def error_listener_dispatch ProxyErrorListener.new(@_listeners) end
get_rule_index_map()
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# File lib/antlr4/runtime/recognizer.rb, line 52 def get_rule_index_map if rule_names.nil? raise UnsupportedOperationException, 'The current recognizer does not provide a list of rule names.' end result = @rule_index_map_cache[rule_names] if result.nil? result = Utils.toMap(rule_names) @rule_index_map_cache[rule_names] = result end result end
get_serialized_atn()
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# File lib/antlr4/runtime/recognizer.rb, line 73 def get_serialized_atn raise UnsupportedOperationException, 'there is no serialized ATN' end
get_token_type(token_name)
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# File lib/antlr4/runtime/recognizer.rb, line 66 def get_token_type(token_name) ttype = get_token_type_map[token_name] return ttype unless ttype.nil? Token::INVALID_TYPE end
get_token_type_map()
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# File lib/antlr4/runtime/recognizer.rb, line 30 def get_token_type_map vocab = get_vocabulary result = @token_type_map_cache[vocab] if result.nil? result = {} i = 0 while i <= getATN.max_token_type literal_name = vocab.literal_name(i) result[literal_name] = i unless literal_name.nil? symbolic_name = vocab.symbolic_name(i) result[symbolic_name] = i unless symbolic_name.nil? i += 1 end result['EOF'] = Token::EOF @token_type_map_cache[vocab] = result end result end
get_vocabulary()
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# File lib/antlr4/runtime/recognizer.rb, line 18 def get_vocabulary VocabularyImpl.from_token_names(token_names) end
parse_info()
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# File lib/antlr4/runtime/recognizer.rb, line 77 def parse_info nil end
precpred(_localctx, _precedence)
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# File lib/antlr4/runtime/recognizer.rb, line 126 def precpred(_localctx, _precedence) true end
remove_error_listener(listener)
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# File lib/antlr4/runtime/recognizer.rb, line 110 def remove_error_listener(listener) @_listeners.delete(listener) end
remove_error_listeners()
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# File lib/antlr4/runtime/recognizer.rb, line 114 def remove_error_listeners @_listeners.clear end
rule_names()
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# File lib/antlr4/runtime/recognizer.rb, line 26 def rule_names nil end
sempred(_localctx, _rule_index, _action_index)
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# File lib/antlr4/runtime/recognizer.rb, line 122 def sempred(_localctx, _rule_index, _action_index) true end
token_error_display(t)
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# File lib/antlr4/runtime/recognizer.rb, line 87 def token_error_display(t) return '<no token>' if t.nil? s = t.text if s.nil? s = if t.type == Token::EOF '<EOF>' else '<' + t.type + '>' end end s = s.tr_s!("\n", '\\n') s = s.tr_s!("\r", '\\r') s = s.tr_s!("\t", '\\t') "'" + s + "'" end
token_names()
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# File lib/antlr4/runtime/recognizer.rb, line 22 def token_names nil end