/*
 * 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;

import org.antlr.v4.runtime.atn.ATN;

A handy class for use with
 options {contextSuperClass=org.antlr.v4.runtime.RuleContextWithAltNum;}
 that provides a backing field / impl for the outer alternative number
 matched for an internal parse tree node.
 I'm only putting into Java runtime as I'm certain I'm the only one that
 will really every use this.
/** A handy class for use with
 *
 *  options {contextSuperClass=org.antlr.v4.runtime.RuleContextWithAltNum;}
 *
 *  that provides a backing field / impl for the outer alternative number
 *  matched for an internal parse tree node.
 *
 *  I'm only putting into Java runtime as I'm certain I'm the only one that
 *  will really every use this.
 */
public class RuleContextWithAltNum extends ParserRuleContext {
	public int altNum;
	public RuleContextWithAltNum() { altNum = ATN.INVALID_ALT_NUMBER; }

	public RuleContextWithAltNum(ParserRuleContext parent, int invokingStateNumber) {
		super(parent, invokingStateNumber);
	}
	@Override public int getAltNumber() { return altNum; }
	@Override public void setAltNumber(int altNum) { this.altNum = altNum; }
}