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Java > Open Source Codes > proguard > classfile > attribute > visitor > AllAttributeVisitor


1 /*
2  * ProGuard -- shrinking, optimization, obfuscation, and preverification
3  * of Java bytecode.
4  *
5  * Copyright (c) 2002-2003 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.attribute.visitor;
22
23 import proguard.classfile.*;
24 import proguard.classfile.attribute.*;
25 import proguard.classfile.util.SimplifiedVisitor;
26 import proguard.classfile.visitor.*;
27
28 /**
29  * This ClassVisitor, MemberVisitor, and AttributeVisitor lets a given
30  * AttributeVisitor visit all Attribute objects of the program classes,
31  * program class members, or code attributes, respectively, that it visits.
32  *
33  * @author Eric Lafortune
34  */
35 public class AllAttributeVisitor
36 extends SimplifiedVisitor
37 implements ClassVisitor,
38              MemberVisitor,
39              AttributeVisitor
40 {
41     private AttributeVisitor attributeVisitor;
42
43
44     public AllAttributeVisitor(AttributeVisitor attributeVisitor)
45     {
46         this.attributeVisitor = attributeVisitor;
47     }
48
49
50     // Implementations for ClassVisitor.
51
52     public void visitProgramClass(ProgramClass programClass)
53     {
54         programClass.attributesAccept(attributeVisitor);
55     }
56
57
58     public void visitLibraryClass(LibraryClass libraryClass) {}
59
60
61     // Implementations for MemberVisitor.
62
63     public void visitProgramMember(ProgramClass programClass, ProgramMember programMember)
64     {
65         programMember.attributesAccept(programClass, attributeVisitor);
66     }
67
68
69     public void visitLibraryMember(LibraryClass programClass, LibraryMember programMember) {}
70
71
72     // Implementations for AttributeVisitor.
73
74     public void visitAnyAttribute(Clazz clazz, Attribute attribute) {}
75
76
77     public void visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute)
78     {
79         codeAttribute.attributesAccept(clazz, method, attributeVisitor);
80     }
81 }
82
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