/*
* This file is part of the Jikes RVM project (http://jikesrvm.org).
*
* This file is licensed to You under the Eclipse Public License (EPL);
* You may not use this file except in compliance with the License. You
* may obtain a copy of the License at
*
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership.
*/
package org.mmtk.harness.lang.runtime;
import org.mmtk.harness.lang.type.Type;
import org.mmtk.vm.ReferenceProcessor.Semantics;
import org.vmmagic.unboxed.ObjectReference;
/**
* A weak reference in the MMTk Harness language
*/
public class PhantomReferenceValue extends ReferenceValue {
/**
* The NULL weak reference
*/
public static final ReferenceValue NULL = new PhantomReferenceValue(ObjectReference.nullReference());
/**
* @param ref The referent
*/
public PhantomReferenceValue(ObjectReference ref) {
super(ref,Semantics.PHANTOM);
}
/**
* @see org.mmtk.harness.lang.runtime.Value#type()
*/
@Override
public Type type() {
return Type.PHANTOMREF;
}
}