mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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88 lines
3.0 KiB
C++
88 lines
3.0 KiB
C++
/*
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* Copyright (C) 2013-2018 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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#include "config.h"
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#include "JSArrayBuffer.h"
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#include "JSCInlines.h"
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#include "TypedArrayController.h"
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namespace JSC {
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const ClassInfo JSArrayBuffer::s_info = {
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"ArrayBuffer", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSArrayBuffer)};
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JSArrayBuffer::JSArrayBuffer(VM& vm, Structure* structure, RefPtr<ArrayBuffer>&& arrayBuffer)
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: Base(vm, structure)
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, m_impl(arrayBuffer.get())
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{
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}
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void JSArrayBuffer::finishCreation(VM& vm, JSGlobalObject* globalObject)
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{
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Base::finishCreation(vm);
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// This probably causes GCs in the various VMs to overcount the impact of the array buffer.
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vm.heap.addReference(this, impl());
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vm.m_typedArrayController->registerWrapper(globalObject, impl(), this);
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}
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JSArrayBuffer* JSArrayBuffer::create(
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VM& vm, Structure* structure, RefPtr<ArrayBuffer>&& buffer)
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{
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JSArrayBuffer* result =
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new (NotNull, allocateCell<JSArrayBuffer>(vm.heap))
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JSArrayBuffer(vm, structure, WTFMove(buffer));
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result->finishCreation(vm, structure->globalObject());
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return result;
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}
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Structure* JSArrayBuffer::createStructure(
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VM& vm, JSGlobalObject* globalObject, JSValue prototype)
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{
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return Structure::create(
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vm, globalObject, prototype, TypeInfo(ArrayBufferType, StructureFlags), info(),
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NonArray);
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}
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bool JSArrayBuffer::isShared() const
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{
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return impl()->isShared();
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}
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ArrayBufferSharingMode JSArrayBuffer::sharingMode() const
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{
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return impl()->sharingMode();
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}
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size_t JSArrayBuffer::estimatedSize(JSCell* cell, VM& vm)
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{
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JSArrayBuffer* thisObject = jsCast<JSArrayBuffer*>(cell);
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size_t bufferEstimatedSize = thisObject->impl()->gcSizeEstimateInBytes();
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return Base::estimatedSize(cell, vm) + bufferEstimatedSize;
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}
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} // namespace JSC
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