Source/WebCore/bindings/js/ScriptFunctionCall.h

/*
 * Copyright (C) 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
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 */

#ifndef ScriptFunctionCall_h
#define ScriptFunctionCall_h

#include "PlatformString.h"
#include "ScriptObject.h"
#include "ScriptState.h"

#include <runtime/ArgList.h>

namespace JSC {
    class UString;
    class JSValue;
}

namespace WebCore {
    class ScriptValue;

    class ScriptCallArgumentHandler {
    public:
        ScriptCallArgumentHandler(ScriptState* state) : m_exec(state) { }

        void appendArgument(const ScriptObject&);
        void appendArgument(const ScriptValue&);
        void appendArgument(const String&);
        void appendArgument(const char*);
        void appendArgument(const JSC::UString&);
        void appendArgument(JSC::JSValue);
        void appendArgument(long);
        void appendArgument(long long);
        void appendArgument(unsigned int);
        void appendArgument(unsigned long);
        void appendArgument(int);
        void appendArgument(bool);

    protected:
        JSC::MarkedArgumentBuffer m_arguments;
        ScriptState* m_exec;

    private:
        // MarkedArgumentBuffer must be stack allocated, so prevent heap
        // alloc of ScriptFunctionCall as well.
        void* operator new(size_t) { ASSERT_NOT_REACHED(); return reinterpret_cast<void*>(0xbadbeef); }
        void* operator new[](size_t) { ASSERT_NOT_REACHED(); return reinterpret_cast<void*>(0xbadbeef); }
    };

    class ScriptFunctionCall : public ScriptCallArgumentHandler {
    public:
        ScriptFunctionCall(const ScriptObject& thisObject, const String& name);
        ScriptValue call(bool& hadException, bool reportExceptions = true);
        ScriptValue call();
        ScriptObject construct(bool& hadException, bool reportExceptions = true);

    protected:
        ScriptObject m_thisObject;
        String m_name;
    };

    class ScriptCallback : public ScriptCallArgumentHandler {
    public:
        ScriptCallback(ScriptState*, ScriptValue);

        ScriptValue call();
        ScriptValue call(bool& hadException);

    private:
        ScriptValue m_function;
    };

} // namespace WebCore

#endif // ScriptFunctionCall