/*
 * Copyright (C) 2014-2022 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. AND ITS 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 APPLE INC. OR ITS 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.
 */

#pragma once

#include <JavaScriptCore/JSCast.h>
#include <JavaScriptCore/PropertySlot.h>
#include <JavaScriptCore/PutPropertySlot.h>
#include <JavaScriptCore/Structure.h>
#include <JavaScriptCore/VM.h>

namespace JSC {

class CustomGetterSetter : public JSCell {
public:
    using Base = JSCell;
    static constexpr unsigned StructureFlags = Base::StructureFlags | OverridesGetOwnPropertySlot | OverridesPut | StructureIsImmortal;

    using CustomGetter = GetValueFunc;
    using CustomSetter = PutValueFunc;

    template<typename CellType, SubspaceAccess>
    static GCClient::IsoSubspace* subspaceFor(VM& vm)
    {
        return &vm.customGetterSetterSpace();
    }

    static CustomGetterSetter* create(VM& vm, CustomGetter customGetter, CustomSetter customSetter)
    {
        CustomGetterSetter* customGetterSetter = new (NotNull, allocateCell<CustomGetterSetter>(vm)) CustomGetterSetter(vm, vm.customGetterSetterStructure.get(), customGetter, customSetter);
        customGetterSetter->finishCreation(vm);
        return customGetterSetter;
    }

    CustomGetterSetter::CustomGetter getter() const { return m_getter; }
    CustomGetterSetter::CustomSetter setter() const { return m_setter; }

    inline static Structure* createStructure(VM&, JSGlobalObject*, JSValue);
        
    DECLARE_EXPORT_INFO;

    static bool getOwnPropertySlot(JSObject*, JSGlobalObject*, PropertyName, PropertySlot&) { RELEASE_ASSERT_NOT_REACHED(); return false; }
    static bool put(JSCell*, JSGlobalObject*, PropertyName, JSValue, PutPropertySlot&) { RELEASE_ASSERT_NOT_REACHED(); return false; }
    static bool putByIndex(JSCell*, JSGlobalObject*, unsigned, JSValue, bool) { RELEASE_ASSERT_NOT_REACHED(); return false; }
    static bool setPrototype(JSObject*, JSGlobalObject*, JSValue, bool) { RELEASE_ASSERT_NOT_REACHED(); return false; }
    static bool defineOwnProperty(JSObject*, JSGlobalObject*, PropertyName, const PropertyDescriptor&, bool) { RELEASE_ASSERT_NOT_REACHED(); return false; }
    static bool deleteProperty(JSCell*, JSGlobalObject*, PropertyName, DeletePropertySlot&) { RELEASE_ASSERT_NOT_REACHED(); return false; }

protected:
    CustomGetterSetter(VM& vm, Structure* structure, CustomGetter getter, CustomSetter setter)
        : JSCell(vm, structure)
        , m_getter(getter)
        , m_setter(setter)
    {
    }

private:
    CustomGetter m_getter;
    CustomSetter m_setter;
};

} // namespace JSC
