79 lines
2.3 KiB
Java
79 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.analysis.reflection;
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import com.ibm.wala.analysis.typeInference.PointType;
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import com.ibm.wala.analysis.typeInference.TypeAbstraction;
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import com.ibm.wala.classLoader.IClass;
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import com.ibm.wala.ipa.callgraph.Context;
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import com.ibm.wala.ipa.callgraph.ContextItem;
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import com.ibm.wala.ipa.callgraph.ContextKey;
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import com.ibm.wala.ipa.callgraph.propagation.FilteredPointerKey;
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import com.ibm.wala.util.debug.Assertions;
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/**
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* Implement a Context which corresponds to a given type abstraction. Thus, this maps the name "TYPE" to a JavaTypeAbstraction.
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*/
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public class JavaTypeContext implements Context {
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private final TypeAbstraction type;
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public JavaTypeContext(TypeAbstraction type) {
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if (type == null) {
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throw new IllegalArgumentException("null type");
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}
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this.type = type;
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}
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public ContextItem get(ContextKey name) {
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if (name == ContextKey.RECEIVER) {
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return type;
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} else if (name == ContextKey.PARAMETERS[0]) {
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if (type instanceof PointType) {
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IClass cls = ((PointType) type).getIClass();
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return new FilteredPointerKey.SingleClassFilter(cls);
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} else {
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return null;
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}
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} else {
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return null;
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}
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}
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@Override
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public String toString() {
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return "JavaTypeContext<" + type + ">";
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}
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@Override
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public int hashCode() {
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return 6367 * type.hashCode();
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}
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@Override
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public boolean equals(Object obj) {
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if (obj == null) {
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return false;
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}
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if (getClass().equals(obj.getClass())) {
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JavaTypeContext other = (JavaTypeContext) obj;
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return type.equals(other.type);
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} else {
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return false;
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}
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}
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public TypeAbstraction getType() {
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return type;
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}
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}
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