66 lines
2.3 KiB
Java
66 lines
2.3 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.ipa.callgraph.impl;
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import com.ibm.wala.classLoader.CallSiteReference;
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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.Context;
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import com.ibm.wala.ipa.callgraph.ContextSelector;
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import com.ibm.wala.ipa.callgraph.propagation.InstanceKey;
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import com.ibm.wala.util.intset.IntSet;
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/**
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* A context selector that first checks with A, then defaults to B.
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*/
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public class DelegatingContextSelector implements ContextSelector {
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private static final boolean DEBUG = false;
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private final ContextSelector A;
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private final ContextSelector B;
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public DelegatingContextSelector(ContextSelector A, ContextSelector B) {
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this.A = A;
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this.B = B;
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if (A == null) {
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throw new IllegalArgumentException("null A");
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}
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if (B == null) {
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throw new IllegalArgumentException("null B");
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}
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}
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public Context getCalleeTarget(CGNode caller, CallSiteReference site, IMethod callee, InstanceKey[] receiver) {
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if (DEBUG) {
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System.err.println(("getCalleeTarget " + caller + " " + site + " " + callee));
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}
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if (A != null) {
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Context C = A.getCalleeTarget(caller, site, callee, receiver);
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if (C != null) {
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if (DEBUG) {
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System.err.println(("Case A " + A.getClass() + " " + C));
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}
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return C;
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}
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}
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Context C = B.getCalleeTarget(caller, site, callee, receiver);
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if (DEBUG) {
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System.err.println(("Case B " + B.getClass() + " " + C));
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}
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return C;
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}
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public IntSet getRelevantParameters(CGNode caller, CallSiteReference site) {
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return A.getRelevantParameters(caller, site).union(B.getRelevantParameters(caller, site));
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}
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} |