82 lines
2.4 KiB
Java
82 lines
2.4 KiB
Java
/*******************************************************************************
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* Copyright (c) 2007 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.propagation;
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import java.util.Iterator;
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import com.ibm.wala.classLoader.IClass;
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import com.ibm.wala.classLoader.NewSiteReference;
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import com.ibm.wala.ipa.callgraph.CGNode;
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import com.ibm.wala.ipa.callgraph.CallGraph;
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import com.ibm.wala.types.TypeReference;
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import com.ibm.wala.util.collections.EmptyIterator;
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import com.ibm.wala.util.collections.Pair;
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/**
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* An {@link InstanceKey} which represents the constant char[] contents
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* of a string constant object.
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*/
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public class StringConstantCharArray implements InstanceKey {
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private final ConstantKey<String> constant;
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private StringConstantCharArray(ConstantKey<String> constant) {
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this.constant = constant;
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}
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public static StringConstantCharArray make(ConstantKey<String> constant) {
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if (constant == null) {
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throw new IllegalArgumentException("null constant");
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}
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return new StringConstantCharArray(constant);
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}
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@Override
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public int hashCode() {
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final int prime = 31;
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int result = 1;
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result = prime * result + ((constant == null) ? 0 : constant.hashCode());
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return result;
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj)
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return true;
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if (obj == null)
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return false;
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if (getClass() != obj.getClass())
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return false;
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final StringConstantCharArray other = (StringConstantCharArray) obj;
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if (constant == null) {
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if (other.constant != null)
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return false;
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} else if (!constant.equals(other.constant))
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return false;
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return true;
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}
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@Override
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public IClass getConcreteType() {
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return constant.getConcreteType().getClassHierarchy().lookupClass(TypeReference.CharArray);
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}
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@Override
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public String toString() {
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return "StringConstantCharArray:" + constant;
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}
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@Override
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public Iterator<Pair<CGNode, NewSiteReference>> getCreationSites(CallGraph CG) {
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return EmptyIterator.instance();
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}
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}
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