mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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80 lines
2.9 KiB
C++
80 lines
2.9 KiB
C++
/*
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* Copyright (C) 2013-2019 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 "DataView.h"
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#include "JSArrayBufferView.h"
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namespace JSC {
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class JSDataView final : public JSArrayBufferView {
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public:
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using Base = JSArrayBufferView;
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static constexpr unsigned StructureFlags = Base::StructureFlags;
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static constexpr unsigned elementSize = 1;
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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.dataViewSpace<mode>();
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}
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JS_EXPORT_PRIVATE static JSDataView* create(
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JSGlobalObject*, Structure*, RefPtr<ArrayBuffer>&&, unsigned byteOffset,
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unsigned byteLength);
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// Dummy methods, which don't actually work; these are just in place to
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// placate some template specialization we do elsewhere.
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static JSDataView* createUninitialized(JSGlobalObject*, Structure*, unsigned length);
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static JSDataView* create(JSGlobalObject*, Structure*, unsigned length);
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bool set(JSGlobalObject*, unsigned, JSObject*, unsigned, unsigned length);
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bool setIndex(JSGlobalObject*, unsigned, JSValue);
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ArrayBuffer* possiblySharedBuffer() const { return m_buffer; }
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ArrayBuffer* unsharedBuffer() const
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{
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RELEASE_ASSERT(!m_buffer->isShared());
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return m_buffer;
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}
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RefPtr<DataView> possiblySharedTypedImpl();
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RefPtr<DataView> unsharedTypedImpl();
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static const TypedArrayType TypedArrayStorageType = TypeDataView;
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static Structure* createStructure(VM&, JSGlobalObject*, JSValue prototype);
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DECLARE_EXPORT_INFO;
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private:
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JSDataView(VM&, ConstructionContext&, ArrayBuffer*);
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ArrayBuffer* m_buffer;
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};
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} // namespace JSC
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