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/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2009 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.optimize.info;
import proguard.classfile.*;
import proguard.classfile.constant.visitor.ConstantVisitor;
import proguard.classfile.constant.*;
import proguard.classfile.util.SimplifiedVisitor;
/**
* This ConstantVisitor marks all classes that invoke package visible members
* in other classes.
*
* @author Eric Lafortune
*/
public class PackageVisibleMemberInvokingClassMarker
extends SimplifiedVisitor
implements ConstantVisitor
{
// Implementations for ConstantVisitor.
public void visitAnyConstant(Clazz clazz, Constant constant) {}
public void visitAnyRefConstant(Clazz clazz, RefConstant refConstant)
{
Clazz referencedClass = refConstant.referencedClass;
if (referencedClass != null &&
(referencedClass.getAccessFlags() &
ClassConstants.INTERNAL_ACC_PUBLIC) == 0)
{
setInvokesPackageVisibleMembers(clazz);
}
Member referencedMember = refConstant.referencedMember;
if (referencedMember != null &&
(referencedMember.getAccessFlags() &
(ClassConstants.INTERNAL_ACC_PUBLIC |
ClassConstants.INTERNAL_ACC_PRIVATE)) == 0)
{
setInvokesPackageVisibleMembers(clazz);
}
}
// Small utility methods.
private static void setInvokesPackageVisibleMembers(Clazz clazz)
{
ClassOptimizationInfo info = ClassOptimizationInfo.getClassOptimizationInfo(clazz);
if (info != null)
{
info.setInvokesPackageVisibleMembers();
}
}
public static boolean invokesPackageVisibleMembers(Clazz clazz)
{
ClassOptimizationInfo info = ClassOptimizationInfo.getClassOptimizationInfo(clazz);
return info == null || info.invokesPackageVisibleMembers();
}
}
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