1/*
2 * ProGuard -- shrinking, optimization, obfuscation, and preverification
3 *             of Java bytecode.
4 *
5 * Copyright (c) 2002-2013 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.editor;
22
23import proguard.classfile.*;
24import proguard.classfile.attribute.*;
25import proguard.classfile.attribute.visitor.AttributeVisitor;
26import proguard.classfile.util.SimplifiedVisitor;
27
28/**
29 * This AttributeVisitor resets it CodeAttributeEditor whenever it visits a
30 * code attribute.
31 *
32 * @author Eric Lafortune
33 */
34public class CodeAttributeEditorResetter
35extends      SimplifiedVisitor
36implements   AttributeVisitor
37{
38    private final CodeAttributeEditor codeAttributeEditor;
39
40
41    /**
42     * Creates a new CodeAttributeEditorResetter.
43     * @param codeAttributeEditor the code attribute editor that will be reset.
44     */
45    public CodeAttributeEditorResetter(CodeAttributeEditor codeAttributeEditor)
46    {
47        this.codeAttributeEditor = codeAttributeEditor;
48    }
49
50
51    // Implementations for AttributeVisitor.
52
53    public void visitAnyAttribute(Clazz clazz, Attribute attribute) {}
54
55
56    public void visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute)
57    {
58        codeAttributeEditor.reset(codeAttribute.u4codeLength);
59    }
60}
61