1/*
2 * ProGuard -- shrinking, optimization, obfuscation, and preverification
3 *             of Java bytecode.
4 *
5 * Copyright (c) 2002-2014 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 */
21package proguard.classfile.visitor;
22
23import proguard.classfile.*;
24
25
26/**
27 * This MemberVisitor     delegates all method calls to a MemberVisitor
28 * that can be changed at any time.
29 *
30 * @author Eric Lafortune
31 */
32public class VariableMemberVisitor implements MemberVisitor
33{
34    private MemberVisitor memberVisitor;
35
36
37    public VariableMemberVisitor()
38    {
39        this(null);
40    }
41
42
43    public VariableMemberVisitor(MemberVisitor memberVisitor)
44    {
45        this.memberVisitor = memberVisitor;
46    }
47
48
49    public void setMemberVisitor(MemberVisitor memberVisitor)
50    {
51        this.memberVisitor = memberVisitor;
52    }
53
54    public MemberVisitor getMemberVisitor()
55    {
56        return memberVisitor;
57    }
58
59
60    // Implementations for MemberVisitor.
61
62    public void visitProgramField(ProgramClass programClass, ProgramField programField)
63    {
64        if (memberVisitor != null)
65        {
66            memberVisitor.visitProgramField(programClass, programField);
67        }
68    }
69
70
71    public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod)
72    {
73        if (memberVisitor != null)
74        {
75            memberVisitor.visitProgramMethod(programClass, programMethod);
76        }
77    }
78
79
80    public void visitLibraryField(LibraryClass libraryClass, LibraryField libraryField)
81    {
82        if (memberVisitor != null)
83        {
84            memberVisitor.visitLibraryField(libraryClass, libraryField);
85        }
86    }
87
88
89    public void visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod)
90    {
91        if (memberVisitor != null)
92        {
93            memberVisitor.visitLibraryMethod(libraryClass, libraryMethod);
94        }
95    }
96}
97