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Java > Open Source Codes > soot > RefLikeType


1 /* Soot - a J*va Optimization Framework
2  * Copyright (C) 2002 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
21 package soot;
22
23 import soot.util.*;
24 import java.util.*;
25
26 /** Abstract class for Soot classes that model subtypes of java.lang.Object
27  * (ie. object references and arrays)
28  * @author Ondrej Lhotak
29  */
30
31 public abstract class RefLikeType extends Type
32 {
33     /**
34      * If I have a variable x of declared type t, what is a good
35      * declared type for the expression ((Object[]) x)[i]? The
36      * getArrayElementType() method in RefLikeType was introduced even
37      * later to answer this question for all classes implementing
38      * RefLikeType. If t is an array, then the answer is the same as
39      * getElementType(). But t could also be Object, Serializable, or
40      * Cloneable, which can all hold any array, so then the answer is
41      * Object.
42      */
43     public abstract Type getArrayElementType();
44 }
45
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