lexer.removeErrorListeners();
lexer.addErrorListener(DescriptiveErrorListener.INSTANCE);
if (lexer.getInterpreter().decisionToDFA[0] == null) {
ATN atn = lexer.getATN();
for (int i = 0; i < lexer.getInterpreter().decisionToDFA.length; i++) {
lexer.getInterpreter().decisionToDFA[i] = new DFA(atn.getDecisionState(i), i);
}
}
CommonTokenStream tokens = new CommonTokenStream(lexer);
tokens.fill();
tokenCount.addAndGet(currentPass, tokens.size());
if (COMPUTE_CHECKSUM) {
for (Token token : tokens.getTokens()) {
updateChecksum(checksum, token);
}
}
if (!RUN_PARSER) {
return new FileParseResult(input.getSourceName(), (int)checksum.getValue(), null, tokens.size(), startTime, lexer, null);
}
final long parseStartTime = System.nanoTime();
Parser parser = sharedParsers[thread];
if (REUSE_PARSER && parser != null) {
parser.setInputStream(tokens);
} else {
Parser previousParser = parser;
if (USE_PARSER_INTERPRETER) {
Parser referenceParser = parserCtor.newInstance(tokens);
parser = new ParserInterpreter(referenceParser.getGrammarFileName(), referenceParser.getVocabulary(), Arrays.asList(referenceParser.getRuleNames()), referenceParser.getATN(), tokens);
}
else {
parser = parserCtor.newInstance(tokens);
}
DFA[] decisionToDFA = (FILE_GRANULARITY || previousParser == null ? parser : previousParser).getInterpreter().decisionToDFA;
if (!REUSE_PARSER_DFA || (!FILE_GRANULARITY && previousParser == null)) {
decisionToDFA = new DFA[decisionToDFA.length];
}
if (COMPUTE_TRANSITION_STATS) {
parser.setInterpreter(new StatisticsParserATNSimulator(parser, parser.getATN(), decisionToDFA, parser.getInterpreter().getSharedContextCache()));
} else if (!REUSE_PARSER_DFA) {
parser.setInterpreter(new ParserATNSimulator(parser, parser.getATN(), decisionToDFA, parser.getInterpreter().getSharedContextCache()));
}
sharedParsers[thread] = parser;
}
parser.removeParseListeners();
parser.removeErrorListeners();
if (!TWO_STAGE_PARSING) {
parser.addErrorListener(DescriptiveErrorListener.INSTANCE);
parser.addErrorListener(new SummarizingDiagnosticErrorListener());
}
if (parser.getInterpreter().decisionToDFA[0] == null) {
ATN atn = parser.getATN();
for (int i = 0; i < parser.getInterpreter().decisionToDFA.length; i++) {
parser.getInterpreter().decisionToDFA[i] = new DFA(atn.getDecisionState(i), i);
}
}
parser.getInterpreter().setPredictionMode(TWO_STAGE_PARSING ? PredictionMode.SLL : PREDICTION_MODE);
parser.setBuildParseTree(BUILD_PARSE_TREES);