org.antlr.v4.runtime.atn.ActionTransition Maven / Gradle / Ivy
/*
* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
* Use of this file is governed by the BSD 3-clause license that
* can be found in the LICENSE.txt file in the project root.
*/
package org.antlr.v4.runtime.atn;
public final class ActionTransition extends Transition {
public final int ruleIndex;
public final int actionIndex;
public final boolean isCtxDependent; // e.g., $i ref in action
public ActionTransition(ATNState target, int ruleIndex) {
this(target, ruleIndex, -1, false);
}
public ActionTransition(ATNState target, int ruleIndex, int actionIndex, boolean isCtxDependent) {
super(target);
this.ruleIndex = ruleIndex;
this.actionIndex = actionIndex;
this.isCtxDependent = isCtxDependent;
}
@Override
public int getSerializationType() {
return ACTION;
}
@Override
public boolean isEpsilon() {
return true; // we are to be ignored by analysis 'cept for predicates
}
@Override
public boolean matches(int symbol, int minVocabSymbol, int maxVocabSymbol) {
return false;
}
@Override
public String toString() {
return "action_"+ruleIndex+":"+actionIndex;
}
}