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Java > Open Source Codes > proguard > classfile > editor > CodeAttributeEditorResetter


1 /*
2  * ProGuard -- shrinking, optimization, obfuscation, and preverification
3  * of Java bytecode.
4  *
5  * Copyright (c) 2002-2007 Eric Lafortune (eric@graphics.cornell.edu)
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU General Public License as published by the Free
9  * Software Foundation; either version 2 of the License, or (at your option)
10  * any later version.
11  *
12  * This program is distributed in the hope that it will be useful, but WITHOUT
13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15  * more details.
16  *
17  * You should have received a copy of the GNU General Public License along
18  * with this program; if not, write to the Free Software Foundation, Inc.,
19  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20  */
21 package proguard.classfile.editor;
22
23 import proguard.classfile.*;
24 import proguard.classfile.util.SimplifiedVisitor;
25 import proguard.classfile.attribute.*;
26 import proguard.classfile.attribute.visitor.AttributeVisitor;
27 import proguard.classfile.attribute.annotation.*;
28
29 /**
30  * This AttributeVisitor resets it CodeAttributeEditor whenever it visits a
31  * code attribute.
32  *
33  * @author Eric Lafortune
34  */
35 public class CodeAttributeEditorResetter
36 extends SimplifiedVisitor
37 implements AttributeVisitor
38 {
39     private CodeAttributeEditor codeAttributeEditor;
40
41
42     /**
43      * Creates a new CodeAttributeEditorResetter.
44      * @param codeAttributeEditor the code attribute editor that will be reset.
45      */
46     public CodeAttributeEditorResetter(CodeAttributeEditor codeAttributeEditor)
47     {
48         this.codeAttributeEditor = codeAttributeEditor;
49     }
50
51
52     // Implementations for AttributeVisitor.
53
54     public void visitAnyAttribute(Clazz clazz, Attribute attribute) {}
55
56
57     public void visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute)
58     {
59         codeAttributeEditor.reset(codeAttribute.u4codeLength);
60     }
61 }
62
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