1/* 2 * Copyright (C) 2014 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef WriteBarrierInlines_h 27#define WriteBarrierInlines_h 28 29#include "VM.h" 30#include "WriteBarrier.h" 31 32namespace JSC { 33 34template <typename T> 35inline void WriteBarrierBase<T>::set(VM& vm, const JSCell* owner, T* value) 36{ 37 ASSERT(value); 38 ASSERT(!Options::enableConcurrentJIT() || !isCompilationThread()); 39 validateCell(value); 40 setEarlyValue(vm, owner, value); 41} 42 43template <typename T> 44inline void WriteBarrierBase<T>::setMayBeNull(VM& vm, const JSCell* owner, T* value) 45{ 46 if (value) 47 validateCell(value); 48 setEarlyValue(vm, owner, value); 49} 50 51template <typename T> 52inline void WriteBarrierBase<T>::setEarlyValue(VM& vm, const JSCell* owner, T* value) 53{ 54 this->m_cell = reinterpret_cast<JSCell*>(value); 55 vm.heap.writeBarrier(owner, this->m_cell); 56} 57 58inline void WriteBarrierBase<Unknown>::set(VM& vm, const JSCell* owner, JSValue value) 59{ 60 ASSERT(!Options::enableConcurrentJIT() || !isCompilationThread()); 61 m_value = JSValue::encode(value); 62 vm.heap.writeBarrier(owner, value); 63} 64 65} // namespace JSC 66 67#endif // WriteBarrierInlines_h 68