IdentifiedIntegerValue.java revision b9cc48a43ed984587c939d02fba5316bf5c0df6e 
1/*
2 * ProGuard -- shrinking, optimization, obfuscation, and preverification
3 *             of Java bytecode.
4 *
5 * Copyright (c) 2002-2013 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 a integer value that is identified by a unique ID.
25 *
26 * @author Eric Lafortune
27 */
28final class IdentifiedIntegerValue extends SpecificIntegerValue
29{
30    private final ValueFactory valuefactory;
31    private final int          id;
32
33
34    /**
35     * Creates a new integer value with the given ID.
36     */
37    public IdentifiedIntegerValue(ValueFactory valuefactory, int id)
38    {
39        this.valuefactory = valuefactory;
40        this.id           = id;
41    }
42
43
44    // Implementations for Object.
45
46    public boolean equals(Object object)
47    {
48        return this == object ||
49               super.equals(object) &&
50               this.valuefactory.equals(((IdentifiedIntegerValue)object).valuefactory) &&
51               this.id == ((IdentifiedIntegerValue)object).id;
52    }
53
54
55    public int hashCode()
56    {
57        return super.hashCode() ^
58               valuefactory.hashCode() ^
59               id;
60    }
61
62
63    public String toString()
64    {
65        return "i"+id;
66    }
67}