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      1 /*
      2  * Copyright (C) 2008 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 #ifndef JavaScriptCallFrame_h
     27 #define JavaScriptCallFrame_h
     28 
     29 #if ENABLE(JAVASCRIPT_DEBUGGER) && USE(JSC)
     30 
     31 #include <interpreter/CallFrame.h>
     32 #include <wtf/PassRefPtr.h>
     33 #include <wtf/RefCounted.h>
     34 #include <debugger/DebuggerCallFrame.h>
     35 
     36 namespace WebCore {
     37 
     38     class String;
     39 
     40     class JavaScriptCallFrame : public RefCounted<JavaScriptCallFrame> {
     41     public:
     42         static PassRefPtr<JavaScriptCallFrame> create(const JSC::DebuggerCallFrame& debuggerCallFrame, PassRefPtr<JavaScriptCallFrame> caller, intptr_t sourceID, int line)
     43         {
     44             return adoptRef(new JavaScriptCallFrame(debuggerCallFrame, caller, sourceID, line));
     45         }
     46 
     47         void invalidate()
     48         {
     49             m_isValid = false;
     50             m_debuggerCallFrame = 0;
     51         }
     52 
     53         bool isValid() const { return m_isValid; }
     54 
     55         JavaScriptCallFrame* caller();
     56 
     57         intptr_t sourceID() const { return m_sourceID; }
     58         int line() const { return m_line; }
     59         void update(const JSC::DebuggerCallFrame& debuggerCallFrame, intptr_t sourceID, int line)
     60         {
     61             m_debuggerCallFrame = debuggerCallFrame;
     62             m_line = line;
     63             m_sourceID = sourceID;
     64             m_isValid = true;
     65         }
     66 
     67         String functionName() const;
     68         JSC::DebuggerCallFrame::Type type() const;
     69         const JSC::ScopeChainNode* scopeChain() const;
     70         JSC::JSGlobalObject* dynamicGlobalObject() const;
     71 
     72         JSC::JSObject* thisObject() const;
     73         JSC::JSValue evaluate(const JSC::UString& script, JSC::JSValue& exception) const;
     74 
     75     private:
     76         JavaScriptCallFrame(const JSC::DebuggerCallFrame&, PassRefPtr<JavaScriptCallFrame> caller, intptr_t sourceID, int line);
     77 
     78         JSC::DebuggerCallFrame m_debuggerCallFrame;
     79         RefPtr<JavaScriptCallFrame> m_caller;
     80         intptr_t m_sourceID;
     81         int m_line;
     82         bool m_isValid;
     83     };
     84 
     85 } // namespace WebCore
     86 
     87 #endif // ENABLE(JAVASCRIPT_DEBUGGER)
     88 
     89 #endif // JavaScriptCallFrame_h
     90