inspector/JavaScriptCallFrame.cpp

   1 /*
   2  * Copyright (C) 2008, 2013 Apple Inc. All Rights Reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "JavaScriptCallFrame.h"
  28
  29 #if ENABLE(INSPECTOR)
  30
  31 using namespace JSC;
  32
  33 namespace Inspector {
  34
  35 JavaScriptCallFrame::JavaScriptCallFrame(PassRefPtr<DebuggerCallFrame> debuggerCallFrame)
  36     : m_debuggerCallFrame(debuggerCallFrame)
  37 {
  38 }
  39
  40 JavaScriptCallFrame* JavaScriptCallFrame::caller()
  41 {
  42     if (m_caller)
  43         return m_caller.get();
  44
  45     RefPtr<DebuggerCallFrame> debuggerCallerFrame = m_debuggerCallFrame->callerFrame();
  46     if (!debuggerCallerFrame)
  47         return nullptr;
  48
  49     m_caller = create(debuggerCallerFrame);
  50     return m_caller.get();
  51 }
  52
  53 } // namespace Inspector
  54
  55 #endif // ENABLE(INSPECTOR)