Java.src.org.antlr.v4.runtime.misc.Tuple2 Maven / Gradle / Ivy
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The ANTLR 4 grammar compiler.
/*
* Copyright (c) 2012 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.misc;
/**
*
* @author Sam Harwell
*/
public class Tuple2 {
private final T1 item1;
private final T2 item2;
public Tuple2(T1 item1, T2 item2) {
this.item1 = item1;
this.item2 = item2;
}
public final T1 getItem1() {
return item1;
}
public final T2 getItem2() {
return item2;
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
else if (!(obj instanceof Tuple2)) {
return false;
}
Tuple2 other = (Tuple2)obj;
return Tuple.equals(this.item1, other.item1)
&& Tuple.equals(this.item2, other.item2);
}
@Override
public int hashCode() {
int hash = 5;
hash = 79 * hash + (this.item1 != null ? this.item1.hashCode() : 0);
hash = 79 * hash + (this.item2 != null ? this.item2.hashCode() : 0);
return hash;
}
@Override
public String toString() {
return String.format("(%s, %s)", item1, item2);
}
}