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Java > Open Source Codes > soot > MethodContext


1 /* Soot - a J*va Optimization Framework
2  * Copyright (C) 2003 Ondrej Lhotak
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 package soot;
21 import soot.jimple.*;
22 import java.util.*;
23
24 /** Represents a pair of a method and a context.
25  * @author Ondrej Lhotak
26  */
27 public final class MethodContext implements MethodOrMethodContext
28 {
29     private SootMethod method;
30     public SootMethod method() { return method; }
31     private Context context;
32     public Context context() { return context; }
33     private MethodContext( SootMethod method, Context context ) {
34         this.method = method;
35         this.context = context;
36     }
37     public int hashCode() {
38         return method.hashCode() + context.hashCode();
39     }
40     public boolean equals( Object JavaDoc o ) {
41         if( o instanceof MethodContext ) {
42             MethodContext other = (MethodContext) o;
43             return method.equals( other.method ) && context.equals( other.context );
44         }
45         return false;
46     }
47     public static MethodOrMethodContext v( SootMethod method, Context context ) {
48         if( context == null ) return method;
49         MethodContext probe = new MethodContext( method, context );
50         Map map = G.v().MethodContext_map;
51         MethodContext ret = (MethodContext) map.get( probe );
52         if( ret == null ) {
53             map.put( probe, probe );
54             return probe;
55         }
56         return ret;
57     }
58     public String JavaDoc toString() {
59         return "Method "+method+" in context "+context;
60     }
61 }
62
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