WALA/com.ibm.wala.cast/source/java/com/ibm/wala/cast/ipa/callgraph/AstContextInsensitiveSSACon...

65 lines
2.2 KiB
Java

/******************************************************************************
* 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.cast.ipa.callgraph;
import java.util.Iterator;
import com.ibm.wala.cast.loader.AstMethod;
import com.ibm.wala.classLoader.CallSiteReference;
import com.ibm.wala.classLoader.CodeScanner;
import com.ibm.wala.classLoader.IMethod;
import com.ibm.wala.classLoader.NewSiteReference;
import com.ibm.wala.ipa.callgraph.AnalysisOptions;
import com.ibm.wala.ipa.callgraph.CGNode;
import com.ibm.wala.ipa.callgraph.Context;
import com.ibm.wala.ipa.callgraph.IAnalysisCacheView;
import com.ibm.wala.ipa.callgraph.propagation.cfa.ContextInsensitiveSSAInterpreter;
import com.ibm.wala.ssa.IR;
import com.ibm.wala.util.collections.EmptyIterator;
/**
* A version of {@link ContextInsensitiveSSAInterpreter} that uses the IR for
* {@link #iterateNewSites(CGNode)} and {@link #iterateCallSites(CGNode)} when
* we have an {@link AstMethod}. ({@link ContextInsensitiveSSAInterpreter}
* defaults to using {@link CodeScanner}, which only works for bytecodes.)
*/
public class AstContextInsensitiveSSAContextInterpreter extends ContextInsensitiveSSAInterpreter {
public AstContextInsensitiveSSAContextInterpreter(AnalysisOptions options, IAnalysisCacheView cache) {
super(options, cache);
}
public boolean understands(IMethod method, Context context) {
return method instanceof AstMethod;
}
@Override
public Iterator<NewSiteReference> iterateNewSites(CGNode N) {
IR ir = getIR(N);
if (ir == null) {
return EmptyIterator.instance();
} else {
return ir.iterateNewSites();
}
}
@Override
public Iterator<CallSiteReference> iterateCallSites(CGNode N) {
IR ir = getIR(N);
if (ir == null) {
return EmptyIterator.instance();
} else {
return ir.iterateCallSites();
}
}
}