com.ibm.wala.demandpa.flowgraph.IFlowLabel Maven / Gradle / Ivy

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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
 * not to assert any of Regents' copyright rights in Refinement
 * Analysis Tools against recipient for recipient's reproduction,
 * preparation of derivative works, public display, public
 * performance, distribution or sublicensing of Refinement Analysis
 * Tools and derivative works, in source code and object code form.
 * This agreement not to assert does not confer, by implication,
 * estoppel, or otherwise any license or rights in any intellectual
 * property of Regents, including, but not limited to, any patents
 * of Regents or Regents' employees.
 *
 * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT,
 * INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
 * INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE
 * AND ITS DOCUMENTATION, EVEN IF REGENTS HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE AND FURTHER DISCLAIMS ANY STATUTORY
 * WARRANTY OF NON-INFRINGEMENT. THE SOFTWARE AND ACCOMPANYING
 * DOCUMENTATION, IF ANY, PROVIDED HEREUNDER IS PROVIDED "AS
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 */
package com.ibm.wala.demandpa.flowgraph;

/**
 * An edge label in a flow graph
 *
 * @author manu
 */
public interface IFlowLabel {

  void visit(IFlowLabelVisitor v, Object dst);

  /**
   * @return the bar (inverse) edge corresponding to this edge
   */
  IFlowLabel bar();

  interface IFlowLabelVisitor {

    void visitAssignGlobal(AssignGlobalLabel label, Object dst);

    void visitAssign(AssignLabel label, Object dst);

    void visitGetField(GetFieldLabel label, Object dst);

    void visitMatch(MatchLabel label, Object dst);

    void visitNew(NewLabel label, Object dst);

    void visitPutField(PutFieldLabel label, Object dst);

    void visitParam(ParamLabel label, Object dst);

    void visitReturn(ReturnLabel label, Object dst);

    void visitAssignGlobalBar(AssignGlobalBarLabel label, Object dst);

    void visitAssignBar(AssignBarLabel label, Object dst);

    void visitGetFieldBar(GetFieldBarLabel label, Object dst);

    void visitMatchBar(MatchBarLabel label, Object dst);

    void visitNewBar(NewBarLabel label, Object dst);

    void visitPutFieldBar(PutFieldBarLabel label, Object dst);

    void visitReturnBar(ReturnBarLabel label, Object dst);

    void visitParamBar(ParamBarLabel label, Object dst);
  }

  /**
   * @return true if this is a "barred" edge
   */
  boolean isBarred();
}