mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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89 lines
3.3 KiB
C++
89 lines
3.3 KiB
C++
/*
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* Copyright (C) 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. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "JSInternalFieldObjectImpl.h"
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namespace JSC {
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class JSArrayIterator final : public JSInternalFieldObjectImpl<3> {
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public:
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using Base = JSInternalFieldObjectImpl<3>;
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enum class Field : uint8_t {
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Index = 0,
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IteratedObject,
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Kind,
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};
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static_assert(numberOfInternalFields == 3);
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static size_t allocationSize(Checked<size_t> inlineCapacity)
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{
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ASSERT_UNUSED(inlineCapacity, inlineCapacity == 0U);
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return sizeof(JSArrayIterator);
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}
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template<typename CellType, SubspaceAccess mode>
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static IsoSubspace* subspaceFor(VM& vm)
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{
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return vm.arrayIteratorSpace<mode>();
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}
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static std::array<JSValue, numberOfInternalFields> initialValues()
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{
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return { {
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jsNumber(0),
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jsNull(),
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jsNumber(0),
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} };
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}
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static constexpr int64_t doneIndex = -1;
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const WriteBarrier<Unknown>& internalField(Field field) const { return Base::internalField(static_cast<uint32_t>(field)); }
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WriteBarrier<Unknown>& internalField(Field field) { return Base::internalField(static_cast<uint32_t>(field)); }
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IterationKind kind() const { return static_cast<IterationKind>(internalField(Field::Kind).get().asUInt32AsAnyInt()); }
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JSObject* iteratedObject() const { return jsCast<JSObject*>(internalField(Field::IteratedObject).get()); }
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static JSArrayIterator* create(VM&, Structure*, JSObject* iteratedObject, JSValue kind);
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static JSArrayIterator* create(VM& vm, Structure* structure, JSObject* iteratedObject, IterationKind kind)
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{
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return create(vm, structure, iteratedObject, jsNumber(static_cast<unsigned>(kind)));
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}
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static JSArrayIterator* createWithInitialValues(VM&, Structure*);
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static Structure* createStructure(VM&, JSGlobalObject*, JSValue);
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DECLARE_INFO;
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static void visitChildren(JSCell*, SlotVisitor&);
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private:
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JSArrayIterator(VM&, Structure*);
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void finishCreation(VM&);
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};
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} // namespace JSC
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