KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > proguard > classfile > visitor > MethodImplementationTraveler


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.visitor;
22
23 import proguard.classfile.*;
24 import proguard.classfile.util.SimplifiedVisitor;
25
26 /**
27  * This <code>MemberVisitor</code> lets a given <code>MemberVisitor</code>
28  * travel to all concrete implementations of the visited methods in their class
29  * hierarchies.
30  *
31  * @author Eric Lafortune
32  */
33 public class MethodImplementationTraveler
34 extends SimplifiedVisitor
35 implements MemberVisitor
36 {
37     private boolean visitThisMethod;
38     private MemberVisitor memberVisitor;
39
40
41     /**
42      * Creates a new MethodImplementationTraveler.
43      * @param visitThisMethod specifies whether to visit the originally
44      * visited methods.
45      * @param memberVisitor the <code>MemberVisitor</code> to which
46      * visits will be delegated.
47      */
48     public MethodImplementationTraveler(boolean visitThisMethod,
49                                         MemberVisitor memberVisitor)
50     {
51         this.visitThisMethod = visitThisMethod;
52         this.memberVisitor = memberVisitor;
53     }
54
55
56     // Implementations for MemberVisitor.
57
58     public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod)
59     {
60         programClass.methodImplementationsAccept(programMethod,
61                                                  visitThisMethod,
62                                                  memberVisitor);
63     }
64
65
66     public void visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod)
67     {
68         libraryClass.methodImplementationsAccept(libraryMethod,
69                                                  visitThisMethod,
70                                                  memberVisitor);
71     }
72 }
73
Popular Tags