Example usage for org.antlr.v4.runtime Recognizer getTokenFactory

Introduction

In this page you can find the example usage for org.antlr.v4.runtime Recognizer getTokenFactory.

Prototype

public abstract TokenFactory<?> getTokenFactory();

Source Link

Usage

From source file:edu.clemson.cs.rsrg.statushandling.AntlrLexerErrorListener.java

License:Open Source License

/**
 * <p>This is thrown when we encounter an syntax error when
 * parsing the input string.</p>/*from  ww  w.j  a va  2s  .  c  o m*/
 *
 * @param recognizer A recognizer provided by the ANTLR4.
 * @param offendingSymbol The offending token.
 * @param line The line number where the error occurred.
 * @param charPositionInLine The position in the line where the error occurred.
 * @param msg The message to be displayed.
 * @param e The exception thrown.
 */
@Override
public final void syntaxError(Recognizer<?, ?> recognizer, Object offendingSymbol, int line,
        int charPositionInLine, String msg, RecognitionException e) {
    // Only do this if we have a ResolveTokenFactory
    if (recognizer.getTokenFactory() != null && recognizer.getTokenFactory() instanceof ResolveTokenFactory) {
        // Build a location
        ResolveTokenFactory tokenFactory = (ResolveTokenFactory) recognizer.getTokenFactory();
        myStatusHandler.error(new Location(tokenFactory.getFile(), line, charPositionInLine), msg);
    }
    // Otherwise simply return the raw string.
    else {
        myStatusHandler.error(null, "Line " + line + ":" + charPositionInLine + " " + msg);
    }
}

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