1/*
2 * ProGuard -- shrinking, optimization, obfuscation, and preverification
3 *             of Java bytecode.
4 *
5 * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
10 * any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21package proguard.evaluation.value;
22
23/**
24 * This IntegerValue represents the result of a comparisons of two scalar
25 * values.
26 *
27 * @author Eric Lafortune
28 */
29final class ComparisonValue extends SpecificIntegerValue
30{
31    private final Value value1;
32    private final Value value2;
33
34
35    /**
36     * Creates a new comparison integer value of the two given scalar values.
37     */
38    public ComparisonValue(Value integerValue1,
39                           Value integerValue2)
40    {
41        this.value1 = integerValue1;
42        this.value2 = integerValue2;
43    }
44
45
46    // Implementations for Object.
47
48    public boolean equals(Object object)
49    {
50        return this == object ||
51               super.equals(object) &&
52               this.value1.equals(((ComparisonValue)object).value1) &&
53               this.value2.equals(((ComparisonValue)object).value2);
54    }
55
56
57    public int hashCode()
58    {
59        return super.hashCode() ^
60               value1.hashCode() ^
61               value2.hashCode();
62    }
63
64
65    public String toString()
66    {
67        return "("+value1+"~"+ value2 +")";
68    }
69}