35 lines
1.1 KiB
Java
35 lines
1.1 KiB
Java
/******************************************************************************
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* Copyright (c) 2002 - 2012 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.callgraph.fieldbased.flowgraph.vertices;
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/**
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* The unknown vertex is used to model complicated data flow. For instance, thrown
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* exceptions flow into Unknown, and catch blocks read their values from it.
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*
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* @author mschaefer
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*
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*/
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public class UnknownVertex extends Vertex {
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public static final UnknownVertex INSTANCE = new UnknownVertex();
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private UnknownVertex() {}
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@Override
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public <T> T accept(VertexVisitor<T> visitor) {
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return visitor.visitUnknownVertex(this);
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}
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@Override
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public String toString() {
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return "Unknown";
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}
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}
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