61 lines
1.8 KiB
C++
Executable File
61 lines
1.8 KiB
C++
Executable File
/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
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* Use of this file is governed by the BSD 3-clause license that
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* can be found in the LICENSE.txt file in the project root.
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*/
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#include "atn/ATNType.h"
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#include "atn/LexerATNSimulator.h"
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#include "dfa/DFA.h"
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#include "Exceptions.h"
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#include "Vocabulary.h"
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#include "LexerInterpreter.h"
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using namespace antlr4;
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LexerInterpreter::LexerInterpreter(const std::string &grammarFileName, const dfa::Vocabulary &vocabulary,
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const std::vector<std::string> &ruleNames, const std::vector<std::string> &channelNames, const std::vector<std::string> &modeNames,
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const atn::ATN &atn, CharStream *input)
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: Lexer(input), _grammarFileName(grammarFileName), _atn(atn), _ruleNames(ruleNames),
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_channelNames(channelNames), _modeNames(modeNames),
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_vocabulary(vocabulary) {
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if (_atn.grammarType != atn::ATNType::LEXER) {
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throw IllegalArgumentException("The ATN must be a lexer ATN.");
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}
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for (size_t i = 0; i < atn.getNumberOfDecisions(); ++i) {
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_decisionToDFA.push_back(dfa::DFA(_atn.getDecisionState(i), i));
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}
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_interpreter = new atn::LexerATNSimulator(this, _atn, _decisionToDFA, _sharedContextCache); /* mem-check: deleted in d-tor */
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}
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LexerInterpreter::~LexerInterpreter()
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{
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delete _interpreter;
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}
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const atn::ATN& LexerInterpreter::getATN() const {
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return _atn;
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}
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std::string LexerInterpreter::getGrammarFileName() const {
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return _grammarFileName;
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}
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const std::vector<std::string>& LexerInterpreter::getRuleNames() const {
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return _ruleNames;
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}
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const std::vector<std::string>& LexerInterpreter::getChannelNames() const {
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return _channelNames;
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}
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const std::vector<std::string>& LexerInterpreter::getModeNames() const {
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return _modeNames;
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}
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const dfa::Vocabulary& LexerInterpreter::getVocabulary() const {
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return _vocabulary;
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}
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