1/*
2 * ProGuard -- shrinking, optimization, obfuscation, and preverification
3 *             of Java bytecode.
4 *
5 * Copyright (c) 2002-2009 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.Clazz;
24import proguard.classfile.constant.*;
25import proguard.classfile.constant.visitor.ConstantVisitor;
26import proguard.classfile.util.SimplifiedVisitor;
27
28
29/**
30 * This ConstantVisitor lets a given <code>ClassVisitor</code> visit all
31 * constant classes involved in any <code>Class.forName</code> constructs that
32 * it visits.
33 *
34 * @see DotClassClassVisitor
35 *
36 * @author Eric Lafortune
37 */
38public class ClassForNameClassVisitor
39extends      SimplifiedVisitor
40implements   ConstantVisitor
41{
42    private final ClassVisitor classVisitor;
43
44
45    /**
46     * Creates a new ClassHierarchyTraveler.
47     * @param classVisitor the <code>ClassVisitor</code> to which visits will
48     *                     be delegated.
49     */
50    public ClassForNameClassVisitor(ClassVisitor classVisitor)
51    {
52        this.classVisitor = classVisitor;
53    }
54
55
56    // Implementations for ConstantVisitor.
57
58    public void visitAnyConstant(Clazz clazz, Constant constant) {}
59
60
61    public void visitStringConstant(Clazz clazz, StringConstant stringConstant)
62    {
63        // Visit the referenced class from the Class.forName construct, if any.
64        stringConstant.referencedClassAccept(classVisitor);
65    }
66}
67