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 <debugger/DebuggerCallFrame.h>

    32 #include <interpreter/CallFrame.h>

    33 #include <wtf/PassRefPtr.h>

    34 #include <wtf/RefCounted.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