78 lines
2.6 KiB
Java
78 lines
2.6 KiB
Java
/******************************************************************************
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* Copyright (c) 2002 - 2006 IBM Corporation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*****************************************************************************/
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package com.ibm.wala.cast.ipa.callgraph;
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import com.ibm.wala.cast.types.AstMethodReference;
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import com.ibm.wala.cast.types.AstTypeReference;
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import com.ibm.wala.classLoader.CallSiteReference;
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import com.ibm.wala.classLoader.IClass;
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import com.ibm.wala.classLoader.IMethod;
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import com.ibm.wala.ipa.callgraph.CGNode;
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import com.ibm.wala.ipa.callgraph.MethodTargetSelector;
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import com.ibm.wala.ipa.cha.IClassHierarchy;
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import com.ibm.wala.types.ClassLoaderReference;
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import com.ibm.wala.types.MethodReference;
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import com.ibm.wala.types.TypeReference;
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public class StandardFunctionTargetSelector implements MethodTargetSelector {
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private final IClassHierarchy cha;
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private final MethodTargetSelector base;
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public StandardFunctionTargetSelector(IClassHierarchy cha, MethodTargetSelector base) {
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assert cha != null;
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this.cha = cha;
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this.base = base;
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}
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@Override
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public IMethod getCalleeTarget(CGNode caller, CallSiteReference site, IClass receiver) {
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ClassLoaderReference loader =
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(site.isStatic() || receiver==null)?
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site.getDeclaredTarget().getDeclaringClass().getClassLoader():
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receiver.getClassLoader().getReference();
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TypeReference functionTypeRef =
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TypeReference.findOrCreate(loader, AstTypeReference.functionTypeName);
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IClass declarer =
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site.isStatic()?
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cha.lookupClass(site.getDeclaredTarget().getDeclaringClass()):
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receiver;
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if (declarer == null) {
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System.err.println(("cannot find declarer for " +
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site + ", " + receiver + " in " + caller));
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}
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IClass fun = cha.lookupClass(functionTypeRef);
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if (fun == null) {
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System.err.println(("cannot find function " + functionTypeRef + " for " +
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site + ", " + receiver + " in " + caller));
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}
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if (fun != null && declarer != null && cha.isSubclassOf(declarer, fun)) {
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return declarer.getMethod(AstMethodReference.fnSelector);
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} else {
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return base.getCalleeTarget(caller, site, receiver);
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}
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}
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public boolean mightReturnSyntheticMethod(CGNode caller, CallSiteReference site) {
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return true;
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}
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public boolean mightReturnSyntheticMethod(MethodReference declaredTarget) {
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return true;
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}
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}
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