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 FTLExitArgument_h 27#define FTLExitArgument_h 28 29#if ENABLE(FTL_JIT) 30 31#include "FTLValueFormat.h" 32#include <wtf/PrintStream.h> 33 34namespace JSC { namespace FTL { 35 36struct ExitArgumentRepresentation { 37 ValueFormat format; 38 unsigned argument; 39}; 40 41class ExitArgument { 42public: 43 ExitArgument() 44 { 45 m_representation.format = InvalidValueFormat; 46 } 47 48 ExitArgument(ValueFormat format, unsigned argument) 49 { 50 m_representation.format = format; 51 m_representation.argument = argument; 52 } 53 54 explicit ExitArgument(ExitArgumentRepresentation representation) 55 { 56 m_representation = representation; 57 } 58 59 bool operator!() const { return m_representation.format == InvalidValueFormat; } 60 61 ValueFormat format() const 62 { 63 ASSERT(*this); 64 return m_representation.format; 65 } 66 67 unsigned argument() const 68 { 69 ASSERT(*this); 70 return m_representation.argument; 71 } 72 73 ExitArgument withFormat(ValueFormat format) 74 { 75 return ExitArgument(format, argument()); 76 } 77 78 ExitArgumentRepresentation representation() const { return m_representation; } 79 80 void dump(PrintStream&) const; 81 82private: 83 ExitArgumentRepresentation m_representation; 84}; 85 86} } // namespace JSC::FTL 87 88#endif // ENABLE(FTL_JIT) 89 90#endif // FTLExitArgument_h 91 92