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/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2013 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.visitor;
import proguard.classfile.*;
/**
* This <code>ClassVisitor</code> lets a given <code>ClassVisitor</code>
* optionally travel to the visited class, its superclass, its interfaces, and
* its subclasses.
*
* @author Eric Lafortune
*/
public class ClassHierarchyTraveler implements ClassVisitor
{
private final boolean visitThisClass;
private final boolean visitSuperClass;
private final boolean visitInterfaces;
private final boolean visitSubclasses;
private final ClassVisitor classVisitor;
/**
* Creates a new ClassHierarchyTraveler.
* @param visitThisClass specifies whether to visit the originally visited
* classes.
* @param visitSuperClass specifies whether to visit the super classes of
* the visited classes.
* @param visitInterfaces specifies whether to visit the interfaces of
* the visited classes.
* @param visitSubclasses specifies whether to visit the subclasses of
* the visited classes.
* @param classVisitor the <code>ClassVisitor</code> to
* which visits will be delegated.
*/
public ClassHierarchyTraveler(boolean visitThisClass,
boolean visitSuperClass,
boolean visitInterfaces,
boolean visitSubclasses,
ClassVisitor classVisitor)
{
this.visitThisClass = visitThisClass;
this.visitSuperClass = visitSuperClass;
this.visitInterfaces = visitInterfaces;
this.visitSubclasses = visitSubclasses;
this.classVisitor = classVisitor;
}
// Implementations for ClassVisitor.
public void visitProgramClass(ProgramClass programClass)
{
programClass.hierarchyAccept(visitThisClass,
visitSuperClass,
visitInterfaces,
visitSubclasses,
classVisitor);
}
public void visitLibraryClass(LibraryClass libraryClass)
{
libraryClass.hierarchyAccept(visitThisClass,
visitSuperClass,
visitInterfaces,
visitSubclasses,
classVisitor);
}
}
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