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Java > Open Source Codes > soot > grimp > internal > GCastExpr


1 /* Soot - a J*va Optimization Framework
2  * Copyright (C) 1999 Patrick Lam
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
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30
31 package soot.grimp.internal;
32
33 import soot.*;
34 import soot.grimp.*;
35 import soot.jimple.*;
36 import soot.jimple.internal.*;
37 import soot.util.*;
38 import java.util.*;
39
40 public class GCastExpr extends AbstractCastExpr implements Precedence
41 {
42     public GCastExpr(Value op, Type type)
43     {
44         super(Grimp.v().newExprBox(op), type);
45     }
46
47     public int getPrecedence() { return 850; }
48
49     private String JavaDoc toString(String JavaDoc leftString, Value op, String JavaDoc opString)
50     {
51         String JavaDoc rightOp = opString;
52
53         if (op instanceof Precedence &&
54             ((Precedence)op).getPrecedence() < getPrecedence())
55             rightOp = "(" + rightOp + ")";
56         return leftString + rightOp;
57     }
58
59     public String JavaDoc toString()
60     {
61         return toString("(" + getCastType().toString() + ") ", getOp(),
62                         getOp().toString());
63     }
64
65     public Object JavaDoc clone()
66     {
67         return new GCastExpr(Grimp.cloneIfNecessary(getOp()), getCastType());
68     }
69
70 }
71
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