/*******************************************************************************
* 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.impl;
import com.ibm.wala.classLoader.IClass;
import com.ibm.wala.classLoader.NewSiteReference;
import com.ibm.wala.ipa.callgraph.CGNode;
import com.ibm.wala.ipa.callgraph.ClassTargetSelector;
import com.ibm.wala.ipa.cha.IClassHierarchy;
/**
* A {@link ClassTargetSelector} that simply looks up the declared type of a {@link NewSiteReference} in the appropriate class hierarchy.
*/
public class ClassHierarchyClassTargetSelector implements ClassTargetSelector {
private final IClassHierarchy cha;
/**
* @param cha governing class hierarchy
*/
public ClassHierarchyClassTargetSelector(IClassHierarchy cha) {
this.cha = cha;
}
@Override
public IClass getAllocatedTarget(CGNode caller, NewSiteReference site) {
if (site == null) {
throw new IllegalArgumentException("site is null");
}
IClass klass = cha.lookupClass(site.getDeclaredType());
if (klass == null) {
return null;
} else if (klass.isAbstract()) {
return null;
} else {
return klass;
}
}
}