01: /* Soot - a J*va Optimization Framework
02: * Copyright (C) 1997-1999 Raja Vallee-Rai
03: *
04: * This library is free software; you can redistribute it and/or
05: * modify it under the terms of the GNU Lesser General Public
06: * License as published by the Free Software Foundation; either
07: * version 2.1 of the License, or (at your option) any later version.
08: *
09: * 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: package soot.jimple;
27:
28: import soot.*;
29: import soot.util.*;
30: import java.util.*;
31:
32: public class ThisRef implements IdentityRef {
33: RefType this Type;
34:
35: public ThisRef(RefType this Type) {
36: this .this Type = this Type;
37: }
38:
39: public boolean equivTo(Object o) {
40: if (o instanceof ThisRef) {
41: return this Type.equals(((ThisRef) o).this Type);
42: }
43: return false;
44: }
45:
46: public int equivHashCode() {
47: return this Type.hashCode();
48: }
49:
50: public String toString() {
51: return "@this: " + this Type;
52: }
53:
54: public void toString(UnitPrinter up) {
55: up.identityRef(this );
56: }
57:
58: public List getUseBoxes() {
59: return AbstractUnit.emptyList;
60: }
61:
62: public Type getType() {
63: return this Type;
64: }
65:
66: public void apply(Switch sw) {
67: ((RefSwitch) sw).caseThisRef(this );
68: }
69:
70: public Object clone() {
71: return new ThisRef(thisType);
72: }
73:
74: }
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