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Java > Open Source Codes > soot > jimple > ThisRef


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 package soot.jimple;
28
29 import soot.*;
30 import soot.util.*;
31 import java.util.*;
32
33 public class ThisRef implements IdentityRef
34 {
35     RefType thisType;
36
37     public ThisRef(RefType thisType)
38     {
39         this.thisType = thisType;
40     }
41
42     public boolean equivTo(Object JavaDoc o)
43     {
44         if (o instanceof ThisRef)
45         {
46             return thisType.equals(((ThisRef)o).thisType);
47         }
48         return false;
49     }
50
51     public int equivHashCode()
52     {
53         return thisType.hashCode();
54     }
55     
56     public String JavaDoc toString()
57     {
58         return "@this: "+thisType;
59     }
60     
61     public void toString( UnitPrinter up ) {
62         up.identityRef(this);
63     }
64
65     public List getUseBoxes()
66     {
67         return AbstractUnit.emptyList;
68     }
69     
70     public Type getType()
71     {
72         return thisType;
73     }
74
75     public void apply(Switch sw)
76     {
77         ((RefSwitch) sw).caseThisRef(this);
78     }
79     
80     public Object JavaDoc clone()
81     {
82         return new ThisRef(thisType);
83     }
84
85 }
86
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