code: /*
   * Copyright (c) 2017-2018 The Regents of the University of California
   *
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   * 1. Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   * notice, this list of conditions and the following disclaimer in the
   * documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  package edu.berkeley.cs.jqf.instrument.tracing.events;
  
  import janala.logger.inst.MemberRef;
  
  /**
   * @author Rohan Padhye
   */
  public class BranchEvent extends TraceEvent {
      /**
       * The branch arm that is taken.
       *
       * For simple conditional branches, 0 is the
       * false branch and 1 is the true branch. For
       * switch-cases, the arm is the index of the case
       * statement (default arm = -1)
       */
      protected final int arm;
  
      public BranchEvent(int iid, MemberRef containingMethod, int lineNumber, int arm) {
          super(iid, containingMethod, lineNumber);
          this.arm = arm;
      }
  
      public int getArm() {
          return arm;
      }
  
      @Override
      public String toString() {
          return String.format("BRANCH(%d,%d,%d)", iid, arm, lineNumber);
      }
  
      @Override
      public void applyVisitor(TraceEventVisitor v) {
          v.visitBranchEvent(this);
      }
  }
  