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/*
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html.
 *
 * This file is a derivative of code released by the University of
 * California under the terms listed below.
 *
 * Refinement Analysis Tools is Copyright (c) 2007 The Regents of the
 * University of California (Regents). Provided that this notice and
 * the following two paragraphs are included in any distribution of
 * Refinement Analysis Tools or its derivative work, Regents agrees
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 * Analysis Tools against recipient for recipient's reproduction,
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 * performance, distribution or sublicensing of Refinement Analysis
 * Tools and derivative works, in source code and object code form.
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 * property of Regents, including, but not limited to, any patents
 * of Regents or Regents' employees.
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package com.ibm.wala.demandpa.flowgraph;

public class AssignGlobalLabel implements IFlowLabel {
  private static final AssignGlobalLabel theInstance = new AssignGlobalLabel();

  private AssignGlobalLabel() {}

  public static AssignGlobalLabel v() {
    return theInstance;
  }

  @Override
  public void visit(IFlowLabelVisitor v, Object dst) throws IllegalArgumentException {
    if (v == null) {
      throw new IllegalArgumentException("v == null");
    }
    v.visitAssignGlobal(this, dst);
  }

  @Override
  public AssignGlobalBarLabel bar() {
    return AssignGlobalBarLabel.v();
  }

  @Override
  public boolean isBarred() {
    return false;
  }

  @Override
  public String toString() {
    return "assignGlobal";
  }
}