67 lines
2.3 KiB
Java
67 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 java.util.Collection;
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import java.util.Set;
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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.cha.IClassHierarchy;
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import com.ibm.wala.types.MethodReference;
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import com.ibm.wala.types.TypeReference;
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import com.ibm.wala.util.collections.HashSetFactory;
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/**
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* An entrypoint whose parameter types are cones based on declared types.
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*/
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public class SubtypesEntrypoint extends DefaultEntrypoint {
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public SubtypesEntrypoint(MethodReference method, IClassHierarchy cha) {
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super(method, cha);
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}
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public SubtypesEntrypoint(IMethod method, IClassHierarchy cha) {
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super(method, cha);
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}
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@Override
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protected TypeReference[][] makeParameterTypes(IMethod method) {
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TypeReference[][] result = new TypeReference[method.getNumberOfParameters()][];
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for (int i = 0; i < result.length; i++) {
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result[i] = makeParameterTypes(method, i);
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}
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return result;
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}
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@Override
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protected TypeReference[] makeParameterTypes(IMethod method, int i) {
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TypeReference nominal = method.getParameterType(i);
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if (nominal.isPrimitiveType() || nominal.isArrayType())
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return new TypeReference[] { nominal };
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else {
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IClass nc = getCha().lookupClass(nominal);
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if (nc == null) {
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throw new IllegalStateException("Could not resolve in cha: " + nominal);
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}
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Collection<IClass> subcs = nc.isInterface() ? getCha().getImplementors(nominal) : getCha().computeSubClasses(nominal);
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Set<TypeReference> subs = HashSetFactory.make();
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for (IClass cs : subcs) {
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if (!cs.isAbstract() && !cs.isInterface()) {
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subs.add(cs.getReference());
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}
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}
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return subs.toArray(new TypeReference[subs.size()]);
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}
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}
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}
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