18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 28e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Copyright (C) 2008 Apple Inc. All rights reserved. 38e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Redistribution and use in source and binary forms, with or without 58e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modification, are permitted provided that the following conditions 68e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * are met: 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer. 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * documentation and/or other materials provided with the distribution. 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * its contributors may be used to endorse or promote products derived 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * from this software without specific prior written permission. 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifndef RegisterID_h 308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#define RegisterID_h 318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include <wtf/Assertions.h> 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include <wtf/VectorTraits.h> 348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace JSC { 368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 37ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch class RegisterID { 38ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch WTF_MAKE_NONCOPYABLE(RegisterID); 398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project public: 408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RegisterID() 418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project : m_refCount(0) 428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project , m_isTemporary(false) 438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifndef NDEBUG 448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project , m_didSetIndex(false) 458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project explicit RegisterID(int index) 508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project : m_refCount(0) 518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project , m_index(index) 528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project , m_isTemporary(false) 538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifndef NDEBUG 548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project , m_didSetIndex(true) 558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project void setIndex(int index) 608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(!m_refCount); 628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifndef NDEBUG 638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_didSetIndex = true; 648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_index = index; 668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project void setTemporary() 698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_isTemporary = true; 718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int index() const 748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(m_didSetIndex); 768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return m_index; 778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool isTemporary() 808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return m_isTemporary; 828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project void ref() 858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ++m_refCount; 878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project void deref() 908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project --m_refCount; 928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(m_refCount >= 0); 938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int refCount() const 968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return m_refCount; 988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project private: 1018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int m_refCount; 1038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int m_index; 1048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool m_isTemporary; 1058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifndef NDEBUG 1068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool m_didSetIndex; 1078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 1088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project }; 1098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} // namespace JSC 1118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace WTF { 1138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project template<> struct VectorTraits<JSC::RegisterID> : VectorTraitsBase<true, JSC::RegisterID> { 1158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project static const bool needsInitialization = true; 1168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project static const bool canInitializeWithMemset = true; // Default initialization just sets everything to 0 or false, so this is safe. 1178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project }; 1188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} // namespace WTF 1208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif // RegisterID_h 122