/*******************************************************************************
* 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.analysis.reflection;
import com.ibm.wala.classLoader.CallSiteReference;
import com.ibm.wala.classLoader.IMethod;
import com.ibm.wala.classLoader.SyntheticMethod;
import com.ibm.wala.ipa.callgraph.CGNode;
import com.ibm.wala.ipa.callgraph.Context;
import com.ibm.wala.ipa.callgraph.ContextSelector;
import com.ibm.wala.ipa.callgraph.propagation.InstanceKey;
import com.ibm.wala.ipa.callgraph.propagation.cfa.CallString;
import com.ibm.wala.ipa.callgraph.propagation.cfa.CallStringContext;
import com.ibm.wala.util.intset.EmptyIntSet;
import com.ibm.wala.util.intset.IntSet;
/**
* For synthetic methods marked as "Factories", we analyze in a context defined by the caller.
*/
class FactoryContextSelector implements ContextSelector {
public FactoryContextSelector() {
}
/*
* @see com.ibm.wala.ipa.callgraph.ContextSelector#getCalleeTarget(com.ibm.wala.ipa.callgraph.CGNode, com.ibm.wala.classLoader.CallSiteReference, com.ibm.wala.classLoader.IMethod)
*/
@Override
public Context getCalleeTarget(CGNode caller, CallSiteReference site, IMethod callee, InstanceKey[] receiver) {
if (callee == null) {
throw new IllegalArgumentException("callee is null");
}
if (callee.isSynthetic()) {
SyntheticMethod s = (SyntheticMethod) callee;
if (s.isFactoryMethod()) {
return new CallStringContext(new CallString(site, caller.getMethod()));
}
}
return null;
}
@Override
public IntSet getRelevantParameters(CGNode caller, CallSiteReference site) {
return EmptyIntSet.instance;
}
}