1/* 2 * Copyright (C) 2013 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. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef FTLTypedPointer_h 27#define FTLTypedPointer_h 28 29#if ENABLE(FTL_JIT) 30 31#include "FTLAbbreviations.h" 32#include "FTLAbstractHeap.h" 33 34namespace JSC { namespace FTL { 35 36class TypedPointer { 37public: 38 TypedPointer() 39 : m_heap(0) 40 , m_value(0) 41 { 42 } 43 44 TypedPointer(const AbstractHeap& heap, LValue value) 45 : m_heap(&heap) 46 , m_value(value) 47 { 48 } 49 50 bool operator!() const 51 { 52 ASSERT(!m_heap == !m_value); 53 return !m_heap; 54 } 55 56 const AbstractHeap& heap() const { return *m_heap; } 57 LValue value() const { return m_value; } 58 59private: 60 const AbstractHeap* m_heap; 61 LValue m_value; 62}; 63 64} } // namespace JSC::FTL 65 66#endif // ENABLE(FTL_JIT) 67 68#endif // FTLTypedPointer_h 69 70