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.obfuscate;
22
23import proguard.classfile.*;
24import proguard.classfile.util.SimplifiedVisitor;
25import proguard.classfile.visitor.ClassVisitor;
26
27import java.util.Map;
28
29/**
30 * This ClassVisitor clears a given map whenever it visits a class.
31 *
32 * @author Eric Lafortune
33 */
34public class MapCleaner
35extends      SimplifiedVisitor
36implements   ClassVisitor
37{
38    private final Map map;
39
40
41    /**
42     * Creates a new MapCleaner.
43     * @param map the map to be cleared.
44     */
45    public MapCleaner(Map map)
46    {
47        this.map = map;
48    }
49
50
51    // Implementations for ClassVisitor.
52
53    public void visitAnyClass(Clazz clazz)
54    {
55        map.clear();
56    }
57}
58