/*******************************************************************************
* Copyright (c) 2002 - 2006 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package com.ibm.wala.ipa.callgraph.propagation;
/**
* Common implementation for {@link InstanceFieldPointerKey} implementations.
*
*/
public abstract class AbstractFieldPointerKey extends AbstractPointerKey implements InstanceFieldPointerKey {
final protected InstanceKey instance;
protected AbstractFieldPointerKey(InstanceKey container) {
if (container == null) {
throw new IllegalArgumentException("container is null");
}
this.instance = container;
}
@Override
public InstanceKey getInstanceKey() {
return instance;
}
}