mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-26 21:50:53 +00:00
69 lines
3.4 KiB
C++
69 lines
3.4 KiB
C++
/*
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* Copyright (C) 2015-2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "CagedBarrierPtr.h"
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#include "JSObject.h"
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namespace JSC {
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// This is a mixin for the two kinds of Arguments-class objects that arise when you say
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// "arguments" inside a function. This class doesn't show up in the JSCell inheritance hierarchy.
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template<typename Type>
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class GenericArguments : public JSNonFinalObject {
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public:
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typedef JSNonFinalObject Base;
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static constexpr unsigned StructureFlags = Base::StructureFlags | OverridesGetOwnPropertySlot | OverridesGetOwnPropertyNames | InterceptsGetOwnPropertySlotByIndexEvenWhenLengthIsNotZero;
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protected:
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GenericArguments(VM& vm, Structure* structure)
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: Base(vm, structure)
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{
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}
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static void visitChildren(JSCell*, SlotVisitor&);
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static bool getOwnPropertySlot(JSObject*, JSGlobalObject*, PropertyName, PropertySlot&);
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static bool getOwnPropertySlotByIndex(JSObject*, JSGlobalObject*, unsigned propertyName, PropertySlot&);
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static void getOwnPropertyNames(JSObject*, JSGlobalObject*, PropertyNameArray&, DontEnumPropertiesMode);
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static bool put(JSCell*, JSGlobalObject*, PropertyName, JSValue, PutPropertySlot&);
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static bool putByIndex(JSCell*, JSGlobalObject*, unsigned propertyName, JSValue, bool shouldThrow);
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static bool deleteProperty(JSCell*, JSGlobalObject*, PropertyName, DeletePropertySlot&);
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static bool deletePropertyByIndex(JSCell*, JSGlobalObject*, unsigned propertyName);
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static bool defineOwnProperty(JSObject*, JSGlobalObject*, PropertyName, const PropertyDescriptor&, bool shouldThrow);
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void initModifiedArgumentsDescriptor(JSGlobalObject*, unsigned length);
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void initModifiedArgumentsDescriptorIfNecessary(JSGlobalObject*, unsigned length);
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void setModifiedArgumentDescriptor(JSGlobalObject*, unsigned index, unsigned length);
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bool isModifiedArgumentDescriptor(unsigned index, unsigned length);
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void copyToArguments(JSGlobalObject*, JSValue* firstElementDest, unsigned offset, unsigned length);
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using ModifiedArgumentsPtr = CagedBarrierPtr<Gigacage::Primitive, bool>;
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ModifiedArgumentsPtr m_modifiedArgumentsDescriptor;
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};
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} // namespace JSC
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