/*

 * 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.

 */

#include "config.h"

#include "JavaScriptCallFrame.h"

#include "JSDOMBinding.h"

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

#include "PlatformString.h"

#include <debugger/DebuggerCallFrame.h>

#include <runtime/Completion.h>

#include <runtime/JSGlobalObject.h>

#include <runtime/JSLock.h>

#include <runtime/JSObject.h>

#include <runtime/JSValue.h>

using namespace JSC;

namespace WebCore {

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

    : m_debuggerCallFrame(debuggerCallFrame)

    , m_caller(caller)

    , m_sourceID(sourceID)

    , m_line(line)

    , m_isValid(true)

{

}

JavaScriptCallFrame* JavaScriptCallFrame::caller()

{

    return m_caller.get();

}

const JSC::ScopeChainNode* JavaScriptCallFrame::scopeChain() const

{

    ASSERT(m_isValid);

    if (!m_isValid)

        return 0;

    return m_debuggerCallFrame.scopeChain();

}

JSC::JSGlobalObject* JavaScriptCallFrame::dynamicGlobalObject() const

{

    ASSERT(m_isValid);

    if (!m_isValid)

        return 0;

    return m_debuggerCallFrame.dynamicGlobalObject();

}

String JavaScriptCallFrame::functionName() const

{

    ASSERT(m_isValid);

    if (!m_isValid)

        return String();

    UString functionName = m_debuggerCallFrame.calculatedFunctionName();

    if (functionName.isEmpty())

        return String();

    return ustringToString(functionName);

}

DebuggerCallFrame::Type JavaScriptCallFrame::type() const

{

    ASSERT(m_isValid);

    if (!m_isValid)

        return DebuggerCallFrame::ProgramType;

    return m_debuggerCallFrame.type();

}

JSObject* JavaScriptCallFrame::thisObject() const

{

    ASSERT(m_isValid);

    if (!m_isValid)

        return 0;

    return m_debuggerCallFrame.thisObject();

}

// Evaluate some JavaScript code in the scope of this frame.

JSValue JavaScriptCallFrame::evaluate(const UString& script, JSValue& exception) const

{

    ASSERT(m_isValid);

    if (!m_isValid)

        return jsNull();

    JSLock lock(SilenceAssertionsOnly);

    return m_debuggerCallFrame.evaluate(script, exception);

}

} // namespace WebCore

#endif // ENABLE(JAVASCRIPT_DEBUGGER)