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Java > Open Source Codes > soot > jimple > toolkits > pointer > FullObjectSet


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.jimple.toolkits.pointer;
21 import java.util.*;
22 import soot.*;
23
24 public class FullObjectSet extends Union {
25     public FullObjectSet( Singletons.Global g ) {
26         this( RefType.v( "java.lang.Object" ) );
27     }
28     public static FullObjectSet v() { return G.v().soot_jimple_toolkits_pointer_FullObjectSet(); }
29     public static FullObjectSet v( RefType t ) {
30         if( t.getClassName().equals( "java.lang.Object" ) ) {
31             return v();
32         }
33         return new FullObjectSet( t );
34     }
35     private final Set types;
36     private FullObjectSet( RefType declaredType ) {
37         AnySubType type = AnySubType.v( declaredType );
38         types = Collections.singleton( type );
39     }
40
41     public AnySubType type() { return (AnySubType) types.iterator().next(); }
42
43     /** Returns true if this set contains no run-time objects. */
44     public boolean isEmpty() {
45     return false;
46     }
47     /** Returns true if this set is a subset of other. */
48     public boolean hasNonEmptyIntersection( PointsToSet other ) {
49     return other != null;
50     }
51     /** Set of all possible run-time types of objects in the set. */
52     public Set possibleTypes() {
53         return types;
54     }
55
56     /** Adds all objects in s into this union of sets, returning true if this
57      * union was changed. */
58     public boolean addAll( PointsToSet s ) {
59     return false;
60     }
61
62     public Set possibleStringConstants() { return null; }
63     public Set possibleClassConstants() { return null; }
64 }
65
66
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