/* * Copyright (C) 2014-2018 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. AND ITS CONTRIBUTORS ``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 ITS 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. */ #pragma once #include "VM.h" #include "WriteBarrier.h" namespace JSC { template <typename T, typename Traits> inline void WriteBarrierBase<T, Traits>::set(VM& vm, const JSCell* owner, T* value) { ASSERT(value); ASSERT(!Options::useConcurrentJIT() || !isCompilationThread()); validateCell(value); setEarlyValue(vm, owner, value); } template <typename T, typename Traits> inline void WriteBarrierBase<T, Traits>::setMayBeNull(VM& vm, const JSCell* owner, T* value) { if (value) validateCell(value); setEarlyValue(vm, owner, value); } template <typename T, typename Traits> inline void WriteBarrierBase<T, Traits>::setEarlyValue(VM& vm, const JSCell* owner, T* value) { Traits::exchange(this->m_cell, value); vm.heap.writeBarrier(owner, static_cast<JSCell*>(value)); } inline void WriteBarrierBase<Unknown, DumbValueTraits<Unknown>>::set(VM& vm, const JSCell* owner, JSValue value) { ASSERT(!Options::useConcurrentJIT() || !isCompilationThread()); m_value = JSValue::encode(value); vm.heap.writeBarrier(owner, value); } } // namespace JSC