/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification
 *             of Java bytecode.
 *
 * Copyright (c) 2002-2017 Eric Lafortune @ GuardSquare
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package proguard.classfile.editor;

import proguard.classfile.*;
import proguard.classfile.attribute.*;
import proguard.classfile.attribute.visitor.AttributeVisitor;
import proguard.classfile.util.SimplifiedVisitor;

/**
 * This AttributeVisitor resets it CodeAttributeEditor whenever it visits a
 * code attribute.
 *
 * @author Eric Lafortune
 */
public class CodeAttributeEditorResetter
extends      SimplifiedVisitor
implements   AttributeVisitor
{
    private final CodeAttributeEditor codeAttributeEditor;


    /**
     * Creates a new CodeAttributeEditorResetter.
     * @param codeAttributeEditor the code attribute editor that will be reset.
     */
    public CodeAttributeEditorResetter(CodeAttributeEditor codeAttributeEditor)
    {
        this.codeAttributeEditor = codeAttributeEditor;
    }


    // Implementations for AttributeVisitor.

    public void visitAnyAttribute(Clazz clazz, Attribute attribute) {}


    public void visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute)
    {
        codeAttributeEditor.reset(codeAttribute.u4codeLength);
    }
}
