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ProGuard is a free Java class file shrinker, optimizer, and obfuscator. It removes unused classes, fields, methods, and attributes. It then optimizes the bytecode. It then renames the remaining classes, fields, and methods using short meaningless names. Finally, it preverifies the processed code for Java 6 or for Java Micro Edition.
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/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2009 Eric Lafortune ([email protected])
*
* 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.evaluation.value;
import proguard.classfile.Clazz;
/**
* This LongValue represents a reference value that is identified by a unique ID.
*
* @author Eric Lafortune
*/
final class IdentifiedReferenceValue extends ReferenceValue
{
private final ValueFactory valuefactory;
private final int id;
/**
* Creates a new long value with the given ID.
*/
public IdentifiedReferenceValue(String type,
Clazz referencedClass,
boolean mayBeNull,
ValueFactory valuefactory,
int id)
{
super(type, referencedClass, mayBeNull);
this.valuefactory = valuefactory;
this.id = id;
}
// Implementations for ReferenceValue.
public int equal(ReferenceValue other)
{
return this.equals(other) ? ALWAYS : MAYBE;
}
// Implementations for Value.
public boolean isSpecific()
{
return true;
}
// Implementations for Object.
public boolean equals(Object object)
{
return this == object ||
super.equals(object) &&
this.valuefactory.equals(((IdentifiedReferenceValue)object).valuefactory) &&
this.id == ((IdentifiedReferenceValue)object).id;
}
public int hashCode()
{
return super.hashCode() ^
valuefactory.hashCode() ^
id;
}
public String toString()
{
return super.toString()+'#'+id;
}
}