BailErrorStrategy.java

/***
 * Excerpted from "The Definitive ANTLR 4 Reference",
 * published by The Pragmatic Bookshelf.
 * Copyrights apply to this code. It may not be used to create training material, 
 * courses, books, articles, and the like. Contact us if you are in doubt.
 * We make no guarantees that this code is fit for any purpose. 
 * Visit http://www.pragmaticprogrammer.com/titles/tpantlr2 for more book information.
***/
import org.antlr.v4.runtime.*;

public class BailErrorStrategy extends DefaultErrorStrategy {
    /** Instead of recovering from exception e, rethrow it wrapped
     *  in a generic RuntimeException so it is not caught by the
     *  rule function catches.  Exception e is the "cause" of the
     *  RuntimeException.
     */
	 
    @Override
    public void recover(Parser recognizer, RecognitionException e) {
        throw new RuntimeException(e);
    }

    /** Make sure we don't attempt to recover inline; if the parser
     *  successfully recovers, it won't throw an exception.
     */
    @Override
    public Token recoverInline(Parser recognizer)
        throws RecognitionException
    {
        throw new RuntimeException(new InputMismatchException(recognizer));
    }

    /** Make sure we don't attempt to recover from problems in subrules. */
    @Override
    public void sync(Parser recognizer) { }
}