49 lines
1.5 KiB
Java
49 lines
1.5 KiB
Java
/******************************************************************************
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* Copyright (c) 2002 - 2014 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.cfg.exc.intra;
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import com.ibm.wala.cfg.IBasicBlock;
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import com.ibm.wala.ipa.cfg.EdgeFilter;
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import com.ibm.wala.util.graph.Graph;
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/**
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* An EdgeFilter that ignores all edges contained in a given graph. This ca be used
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* to subtract a subgraph from its main graph.
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*
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* @author Juergen Graf <graf@kit.edu>
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*
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*/
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public class NegativeGraphFilter<T extends IBasicBlock<?>> implements EdgeFilter<T> {
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private final Graph<T> deleted;
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public NegativeGraphFilter(Graph<T> deleted) {
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this.deleted = deleted;
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}
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/* (non-Javadoc)
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* @see com.ibm.wala.ipa.cfg.EdgeFilter#hasExceptionalEdge(com.ibm.wala.cfg.IBasicBlock, com.ibm.wala.cfg.IBasicBlock)
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*/
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@Override
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public boolean hasExceptionalEdge(T src, T dst) {
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return !deleted.hasEdge(src, dst);
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}
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/* (non-Javadoc)
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* @see com.ibm.wala.ipa.cfg.EdgeFilter#hasNormalEdge(com.ibm.wala.cfg.IBasicBlock, com.ibm.wala.cfg.IBasicBlock)
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*/
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@Override
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public boolean hasNormalEdge(T src, T dst) {
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return !deleted.hasEdge(src, dst);
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}
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} |