51 lines
1.8 KiB
Java
51 lines
1.8 KiB
Java
/*******************************************************************************
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* Copyright (c) 2011 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.js.ipa.callgraph.correlations;
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import java.util.HashSet;
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import java.util.Set;
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import com.ibm.wala.cast.tree.CAstSourcePositionMap.Position;
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/**
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* A correlation exists between a dynamic property read r and a dynamic property write w such that
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* the value read in r may flow into w, and r and w are guaranteed to access a property of the same name.
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*
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* We additionally track the set of local variables the value read in r may flow through before reaching
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* w. These will be candidates for localisation when extracting the correlation into a closure.
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*
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* @author mschaefer
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*
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*/
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public abstract class Correlation {
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private final String indexName;
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private final Set<String> flownThroughLocals;
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protected Correlation(String indexName, Set<String> flownThroughLocals) {
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this.indexName = indexName;
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this.flownThroughLocals = new HashSet<>(flownThroughLocals);
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}
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public String getIndexName() {
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return indexName;
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}
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public Set<String> getFlownThroughLocals() {
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return flownThroughLocals;
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}
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public abstract Position getStartPosition(SSASourcePositionMap positions);
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public abstract Position getEndPosition(SSASourcePositionMap positions);
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public abstract String pp(SSASourcePositionMap positions);
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public abstract <T> T accept(CorrelationVisitor<T> visitor);
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}
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