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Java > Open Source Codes > soot > jimple > StringConstant


1 /* Soot - a J*va Optimization Framework
2  * Copyright (C) 1997-1999 Raja Vallee-Rai
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the
16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17  * Boston, MA 02111-1307, USA.
18  */
19
20 /*
21  * Modified by the Sable Research Group and others 1997-1999.
22  * See the 'credits' file distributed with Soot for the complete list of
23  * contributors. (Soot is distributed at http://www.sable.mcgill.ca/soot)
24  */
25
26
27
28
29
30 package soot.jimple;
31
32 import soot.*;
33 import soot.util.*;
34 import java.util.*;
35
36 public class StringConstant extends Constant
37 {
38     public final String JavaDoc value;
39
40     private StringConstant(String JavaDoc s)
41     {
42         this.value = s;
43     }
44
45     public static StringConstant v(String JavaDoc value)
46     {
47         return new StringConstant(value);
48     }
49
50     // In this case, equals should be structural equality.
51 public boolean equals(Object JavaDoc c)
52     {
53         return (c instanceof StringConstant && ((StringConstant) c).value.equals(this.value));
54     }
55
56     /** Returns a hash code for this StringConstant object. */
57     public int hashCode()
58     {
59         return value.hashCode();
60     }
61
62     public String JavaDoc toString()
63     {
64         return StringTools.getQuotedStringOf(value);
65     }
66
67     public Type getType()
68     {
69         return RefType.v("java.lang.String");
70     }
71
72     public void apply(Switch sw)
73     {
74         ((ConstantSwitch) sw).caseStringConstant(this);
75     }
76 }
77
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