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/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu)
*
* 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.attribute.visitor;
import proguard.classfile.*;
import proguard.classfile.attribute.*;
import proguard.classfile.util.SimplifiedVisitor;
import proguard.classfile.visitor.*;
/**
* This ClassVisitor, MemberVisitor, and AttributeVisitor lets a given
* AttributeVisitor visit all Attribute objects of the program classes,
* program class members, or code attributes, respectively, that it visits.
*
* @author Eric Lafortune
*/
public class AllAttributeVisitor
extends SimplifiedVisitor
implements ClassVisitor,
MemberVisitor,
AttributeVisitor
{
private final boolean deep;
private final AttributeVisitor attributeVisitor;
/**
* Creates a new shallow AllAttributeVisitor.
* @param attributeVisitor the AttributeVisitor to which visits will be
* delegated.
*/
public AllAttributeVisitor(AttributeVisitor attributeVisitor)
{
this(false, attributeVisitor);
}
/**
* Creates a new optionally deep AllAttributeVisitor.
* @param deep specifies whether the attributes contained
* further down the class structure should be
* visited too.
* @param attributeVisitor the AttributeVisitor to which visits will be
* delegated.
*/
public AllAttributeVisitor(boolean deep,
AttributeVisitor attributeVisitor)
{
this.deep = deep;
this.attributeVisitor = attributeVisitor;
}
// Implementations for ClassVisitor.
public void visitProgramClass(ProgramClass programClass)
{
programClass.attributesAccept(attributeVisitor);
// Visit the attributes further down the class structure, if required.
if (deep)
{
programClass.fieldsAccept(this);
programClass.methodsAccept(this);
programClass.attributesAccept(this);
}
}
public void visitLibraryClass(LibraryClass libraryClass) {}
// Implementations for MemberVisitor.
public void visitProgramMember(ProgramClass programClass, ProgramMember programMember)
{
programMember.attributesAccept(programClass, attributeVisitor);
// Visit the attributes further down the member structure, if required.
if (deep)
{
programMember.attributesAccept(programClass, this);
}
}
public void visitLibraryMember(LibraryClass programClass, LibraryMember programMember) {}
// Implementations for AttributeVisitor.
public void visitAnyAttribute(Clazz clazz, Attribute attribute) {}
public void visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute)
{
codeAttribute.attributesAccept(clazz, method, attributeVisitor);
}
}
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