diff options
Diffstat (limited to 'runtime/Java/src/main/java/org/antlr/runtime/FailedPredicateException.java')
-rw-r--r-- | runtime/Java/src/main/java/org/antlr/runtime/FailedPredicateException.java | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/runtime/Java/src/main/java/org/antlr/runtime/FailedPredicateException.java b/runtime/Java/src/main/java/org/antlr/runtime/FailedPredicateException.java new file mode 100644 index 0000000..5bef1bd --- /dev/null +++ b/runtime/Java/src/main/java/org/antlr/runtime/FailedPredicateException.java @@ -0,0 +1,54 @@ +/* + [The "BSD license"] + Copyright (c) 2005-2009 Terence Parr + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + 3. The name of the author may not be used to endorse or promote products + derived from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +package org.antlr.runtime; + +/** A semantic predicate failed during validation. Validation of predicates + * occurs when normally parsing the alternative just like matching a token. + * Disambiguating predicate evaluation occurs when we hoist a predicate into + * a prediction decision. + */ +public class FailedPredicateException extends RecognitionException { + public String ruleName; + public String predicateText; + + /** Used for remote debugger deserialization */ + public FailedPredicateException() {;} + + public FailedPredicateException(IntStream input, + String ruleName, + String predicateText) + { + super(input); + this.ruleName = ruleName; + this.predicateText = predicateText; + } + + public String toString() { + return "FailedPredicateException("+ruleName+",{"+predicateText+"}?)"; + } +} |