/* * Copyright (C) 2013 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. ``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 * 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. */ #include "config.h" #include "SimpleTypedArrayController.h" #include "ArrayBuffer.h" #include "JSArrayBuffer.h" #include "JSCInlines.h" namespace JSC { SimpleTypedArrayController::SimpleTypedArrayController() { } SimpleTypedArrayController::~SimpleTypedArrayController() { } JSArrayBuffer* SimpleTypedArrayController::toJS( ExecState* exec, JSGlobalObject* globalObject, ArrayBuffer* native) { if (JSArrayBuffer* buffer = native->m_wrapper.get()) return buffer; // The JSArrayBuffer::create function will register the wrapper in finishCreation. JSArrayBuffer* result = JSArrayBuffer::create( exec->vm(), globalObject->arrayBufferStructure(), native); return result; } void SimpleTypedArrayController::registerWrapper(JSGlobalObject*, ArrayBuffer* native, JSArrayBuffer* wrapper) { ASSERT(!native->m_wrapper); native->m_wrapper = Weak<JSArrayBuffer>(wrapper, &m_owner); } bool SimpleTypedArrayController::JSArrayBufferOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, JSC::SlotVisitor& visitor) { auto& wrapper = *JSC::jsCast<JSC::JSArrayBuffer*>(handle.slot()->asCell()); return visitor.containsOpaqueRoot(wrapper.impl()); } void SimpleTypedArrayController::JSArrayBufferOwner::finalize(JSC::Handle<JSC::Unknown>, void*) { } } // namespace JSC