org.antlr.v4.runtime.atn.RangeTransition 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;
import org.antlr.v4.runtime.misc.IntervalSet;
public final class RangeTransition extends Transition {
public final int from;
public final int to;
public RangeTransition(ATNState target, int from, int to) {
super(target);
this.from = from;
this.to = to;
}
@Override
public int getSerializationType() {
return RANGE;
}
@Override
public IntervalSet label() { return IntervalSet.of(from, to); }
@Override
public boolean matches(int symbol, int minVocabSymbol, int maxVocabSymbol) {
return symbol >= from && symbol <= to;
}
@Override
public String toString() {
return new StringBuilder("'")
.appendCodePoint(from)
.append("'..'")
.appendCodePoint(to)
.append("'")
.toString();
}
}