/*

 * Copyright (C) 2008 Apple Inc. 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 APPLE INC. ``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 APPLE INC. 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.

 */

#ifndef JavaScriptCallFrame_h

#define JavaScriptCallFrame_h

#if ENABLE(JAVASCRIPT_DEBUGGER) && USE(JSC)

#include <debugger/DebuggerCallFrame.h>

#include <interpreter/CallFrame.h>

#include <wtf/PassRefPtr.h>

#include <wtf/RefCounted.h>

namespace WebCore {

class String;

class JavaScriptCallFrame : public RefCounted<JavaScriptCallFrame> {

public:

    static PassRefPtr<JavaScriptCallFrame> create(const JSC::DebuggerCallFrame& debuggerCallFrame, PassRefPtr<JavaScriptCallFrame> caller, intptr_t sourceID, int line)

    {

        return adoptRef(new JavaScriptCallFrame(debuggerCallFrame, caller, sourceID, line));

    }

    void invalidate()

    {

        m_isValid = false;

        m_debuggerCallFrame = 0;

    }

    bool isValid() const { return m_isValid; }

    JavaScriptCallFrame* caller();

    intptr_t sourceID() const { return m_sourceID; }

    int line() const { return m_line; }

    void update(const JSC::DebuggerCallFrame& debuggerCallFrame, intptr_t sourceID, int line)

    {

        m_debuggerCallFrame = debuggerCallFrame;

        m_line = line;

        m_sourceID = sourceID;

        m_isValid = true;

    }

    String functionName() const;

    JSC::DebuggerCallFrame::Type type() const;

    const JSC::ScopeChainNode* scopeChain() const;

    JSC::JSGlobalObject* dynamicGlobalObject() const;

    JSC::JSObject* thisObject() const;

    JSC::JSValue evaluate(const JSC::UString& script, JSC::JSValue& exception) const;

private:

    JavaScriptCallFrame(const JSC::DebuggerCallFrame&, PassRefPtr<JavaScriptCallFrame> caller, intptr_t sourceID, int line);

    JSC::DebuggerCallFrame m_debuggerCallFrame;

    RefPtr<JavaScriptCallFrame> m_caller;

    intptr_t m_sourceID;

    int m_line;

    bool m_isValid;

};

} // namespace WebCore

#endif // ENABLE(JAVASCRIPT_DEBUGGER)

#endif // JavaScriptCallFrame_h