/* * Copyright (C) 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. ``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 * 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 "ExitingInlineKind.h" namespace JSC { class ExitFlag { public: ExitFlag() { } ExitFlag(bool value, ExitingInlineKind inlineKind) { if (!value) return; switch (inlineKind) { case ExitFromAnyInlineKind: m_bits = trueNotInlined | trueInlined; break; case ExitFromNotInlined: m_bits = trueNotInlined; break; case ExitFromInlined: m_bits = trueInlined; break; } } ExitFlag operator|(const ExitFlag& other) const { ExitFlag result; result.m_bits = m_bits | other.m_bits; return result; } ExitFlag& operator|=(const ExitFlag& other) { *this = *this | other; return *this; } ExitFlag operator&(const ExitFlag& other) const { ExitFlag result; result.m_bits = m_bits & other.m_bits; return result; } ExitFlag& operator&=(const ExitFlag& other) { *this = *this & other; return *this; } explicit operator bool() const { return !!m_bits; } bool isSet(ExitingInlineKind inlineKind) const { return !!(*this & ExitFlag(true, inlineKind)); } void dump(PrintStream&) const; private: static constexpr uint8_t trueNotInlined = 1; static constexpr uint8_t trueInlined = 2; uint8_t m_bits { 0 }; }; } // namespace JSC