/*
 * Copyright (C) 2008, 2009 Google 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:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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 THE COPYRIGHT
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 */

#ifndef ScriptCallStack_h
#define ScriptCallStack_h

#include "ScriptCallFrame.h"
#include "ScriptState.h"
#include "ScriptValue.h"
#include <wtf/Noncopyable.h>

namespace v8 {
    class Arguments;
}

namespace WebCore {

    class ScriptCallStack : public Noncopyable {
    public:
        static ScriptCallStack* create(const v8::Arguments&, unsigned skipArgumentCount = 0);
        ~ScriptCallStack();

        const ScriptCallFrame& at(unsigned) const;
        // FIXME: implement retrieving and storing call stack trace
        unsigned size() const { return 1; }

        ScriptState* state() const { return m_scriptState; }
        ScriptState* globalState() const { return m_scriptState; }

    private:
        ScriptCallStack(const v8::Arguments& arguments, unsigned skipArgumentCount, String sourceName, int sourceLineNumber);
    
        ScriptCallFrame m_lastCaller;
        ScriptState* m_scriptState;
    };

} // namespace WebCore

#endif // ScriptCallStack_h