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 CallEvent extends TraceEvent {
      protected final MemberRef invokedMethod;
      private String str;
      private final Object obj;
  
      public CallEvent(int iid, MemberRef containingMethod, int lineNumber, MemberRef invokedMethod) {
          super(iid, containingMethod, lineNumber);
          this.invokedMethod = invokedMethod;
          this.obj = null;
      }
  
      public CallEvent(int iid, MemberRef containingMethod, int lineNumber, MemberRef invokedMethod, Object callingObject) {
          super(iid, containingMethod, lineNumber);
          this.invokedMethod = invokedMethod;
          this.obj = callingObject;
      }
  
      public String getInvokedMethodName() {
          if (str == null) {
              this.str = invokedMethod.getOwner() + "#" + invokedMethod.getName() + invokedMethod.getDesc();
          }
          return str;
      }
  
      public Object getCallingObject() {
          return obj;
      }
  
      @Override
      public String toString() {
          return String.format("CALL(%d,%d,%s)", iid, lineNumber, getInvokedMethodName());
      }
  
      @Override
      public void applyVisitor(TraceEventVisitor v) {
          v.visitCallEvent(this);
      }
  }
  