81 lines
2.6 KiB
Java
81 lines
2.6 KiB
Java
/*******************************************************************************
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* Copyright (c) 2013 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.cast.ipa.callgraph;
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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.ipa.callgraph.propagation.InstanceKey;
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public class ArgumentInstanceContext implements Context {
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private final Context base;
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private final int index;
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private final InstanceKey instanceKey;
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// to easily identify when an ArgumentInstanceContext is present
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public static final ContextKey ID_KEY = new ContextKey() {};
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public ArgumentInstanceContext(Context base, int index, InstanceKey instanceKey) {
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this.base = base;
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this.index = index;
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this.instanceKey = instanceKey;
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}
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public ContextItem get(ContextKey name) {
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/*if(name == ContextKey.RECEIVER && index == 1)
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return instanceKey;*/
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if(name.equals(ContextKey.PARAMETERS[index]) || name.equals(ID_KEY))
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return new FilteredPointerKey.SingleInstanceFilter(instanceKey);
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return base.get(name);
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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 + ((base == null) ? 0 : base.hashCode());
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result = prime * result + index;
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result = prime * result + ((instanceKey == null) ? 0 : instanceKey.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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ArgumentInstanceContext other = (ArgumentInstanceContext) obj;
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if (base == null) {
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if (other.base != null)
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return false;
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} else if (!base.equals(other.base))
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return false;
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if (index != other.index)
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return false;
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if (instanceKey == null) {
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if (other.instanceKey != null)
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return false;
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} else if (!instanceKey.equals(other.instanceKey))
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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 String toString() {
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return "ArgumentInstanceContext [base=" + base + ", index=" + index + ", instanceKey=" + instanceKey + "]";
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}
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} |