org.antlr.v4.runtime.ANTLRErrorListener Java Examples

public ANTLRParseTreeToPSIConverter(Language language, Parser parser, PsiBuilder builder) {
	this.language = language;
	this.builder = builder;

	this.tokenElementTypes = PSIElementTypeFactory.getTokenIElementTypes(language);
	this.ruleElementTypes = PSIElementTypeFactory.getRuleIElementTypes(language);

	for (ANTLRErrorListener listener : parser.getErrorListeners()) {
		if (listener instanceof SyntaxErrorListener) {
			syntaxErrors = ((SyntaxErrorListener)listener).getSyntaxErrors();
			for (SyntaxError error : syntaxErrors) {
				// record first error per token
				int StartIndex = error.getOffendingSymbol().getStartIndex();
				if ( !tokenToErrorMap.containsKey(StartIndex) ) {
					tokenToErrorMap.put(StartIndex, error);
				}
			}
		}
	}
}
 

@Override
protected void configure() {
    bind(Importer.class).to(ImporterImpl.class);
    bind(FileDescriptorLoader.class).to(FileDescriptorLoaderImpl.class);
    bind(ANTLRErrorListener.class).to(ParseErrorLogger.class);
    bind(ANTLRErrorStrategy.class).to(BailErrorStrategy.class);
    bind(ProtoContext.class)
            .annotatedWith(Names.named(DESCRIPTOR_PROTO))
            .toProvider(DefaultDescriptorProtoProvider.class);

    Multibinder<ProtoContextPostProcessor> postProcessors = Multibinder
            .newSetBinder(binder(), ProtoContextPostProcessor.class);
    postProcessors.addBinding().to(ImportsPostProcessor.class);
    postProcessors.addBinding().to(TypeRegistratorPostProcessor.class);
    postProcessors.addBinding().to(TypeResolverPostProcessor.class);
    postProcessors.addBinding().to(ExtensionRegistratorPostProcessor.class);
    postProcessors.addBinding().to(OptionsPostProcessor.class);
    postProcessors.addBinding().to(UserTypeValidationPostProcessor.class);

    install(new FactoryModuleBuilder()
            .implement(FileReader.class, MultiPathFileReader.class)
            .build(FileReaderFactory.class));
}
 

private TokenizationResult tokenize(String input) {
    Lexer lexer = this.createLexer(input);
    lexer.removeErrorListeners();
    final TokenizationResult result = new TokenizationResult();
    ANTLRErrorListener newErrorListener = new BaseErrorListener() {
        @Override
        public void syntaxError(Recognizer<?, ?> recognizer, Object offendingSymbol, int line,
                int charPositionInLine, String msg, RecognitionException e) throws ParseCancellationException {
            result.untokenizedText = input.substring(charPositionInLine); // intended side effect
        }
    };
    lexer.addErrorListener(newErrorListener);
    result.tokens = lexer.getAllTokens();
    return result;
}
 

public static JmesPathParser createParser(String input, ANTLRErrorListener errorListener) {
  JmesPathLexer lexer = createLexer(input, errorListener);
  CommonTokenStream tokens = new CommonTokenStream(lexer);
  JmesPathParser parser = new JmesPathParser(tokens);
  parser.removeErrorListener(ConsoleErrorListener.INSTANCE);
  parser.addErrorListener(errorListener);
  parser.setBuildParseTree(true);
  return parser;
}
 

static void parseLegacyWithListeners( String query, ANTLRErrorListener lexerListener, ANTLRErrorListener parserListener )
{
    System.setProperty( INCLUDE_LEGACY.name(), "true" );

    initLegacyGrammar( "/cypher.xml" );
    parseWithListeners( legacyGrammar, query, lexerListener, parserListener );
}
 

private static void parseWithListeners( Grammar grammar, String query, ANTLRErrorListener lexerListener, ANTLRErrorListener parserListener )
{
    LexerInterpreter lexer = grammar.createLexerInterpreter( new ANTLRInputStream( query ) );
    ParserInterpreter parser = grammar.createParserInterpreter( new CommonTokenStream( lexer ) );
    lexer.removeErrorListeners();
    parser.removeErrorListeners();
    lexer.addErrorListener( lexerListener );
    parser.addErrorListener( parserListener );
    parser.parse( grammar.getRule( Antlr4.PREFIX + "Cypher" ).index );
}
 

public List<SyntaxError> getErrors() {
  List<? extends ANTLRErrorListener> errorListeners = parser.getErrorListeners();
  for (ANTLRErrorListener errorListener : errorListeners) {
    if (errorListener instanceof EditorConfigErrorListener) {
      EditorConfigErrorListener ecErrorListener = (EditorConfigErrorListener) errorListener;
      return ecErrorListener.getErrorMessages();
    }
  }
  return Collections.emptyList();
}
 

private static JmesPathLexer createLexer(String input, ANTLRErrorListener errorListener) {
  JmesPathLexer lexer = new JmesPathLexer(CharStreams.fromString(input));
  lexer.removeErrorListener(ConsoleErrorListener.INSTANCE);
  lexer.addErrorListener(errorListener);
  return lexer;
}
 

/**
 * Compile it to Java and save.
 *
 * @throws IOException If fails
 */
public void compile() throws IOException {
    final String[] lines = new TextOf(this.input).asString().split("\n");
    final ANTLRErrorListener errors = new BaseErrorListener() {
        // @checkstyle ParameterNumberCheck (10 lines)
        @Override
        public void syntaxError(final Recognizer<?, ?> recognizer,
            final Object symbol, final int line,
            final int position, final String msg,
            final RecognitionException error) {
            throw new CompileException(
                String.format(
                    "[%d:%d] %s: \"%s\"",
                    line, position, msg, lines[line - 1]
                ),
                error
            );
        }
    };
    final org.eolang.compiler.ProgramLexer lexer =
        new org.eolang.compiler.ProgramLexer(
            CharStreams.fromStream(this.input.stream())
        );
    lexer.removeErrorListeners();
    lexer.addErrorListener(errors);
    final org.eolang.compiler.ProgramParser parser =
        new org.eolang.compiler.ProgramParser(
            new CommonTokenStream(lexer)
        );
    parser.removeErrorListeners();
    parser.addErrorListener(errors);
    final Tree tree = parser.program().ret;
    new IoCheckedScalar<>(
        new And(
            path -> {
                new LengthOf(
                    new TeeInput(
                        path.getValue(),
                        this.target.apply(path.getKey())
                    )
                ).value();
            },
            tree.java().entrySet()
        )
    ).value();
}
 

@Inject
public FileDescriptorLoaderImpl(ANTLRErrorListener errorListener, Set<ProtoContextPostProcessor> postProcessors) {
    this.errorListener = errorListener;
    this.postProcessors = postProcessors;
}