/* * Copyright (C) 2013 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. */ #ifndef FTLFormattedValue_h #define FTLFormattedValue_h #if ENABLE(FTL_JIT) #include "FTLAbbreviations.h" #include "FTLValueFormat.h" namespace JSC { namespace FTL { // This class is mostly used for OSR; it's a way of specifying how a value is formatted // in cases where it wouldn't have been obvious from looking at other indicators (like // the type of the LLVMValueRef or the type of the DFG::Node). Typically this arises // because LLVMValueRef doesn't give us the granularity we need to begin with, and we // use this in situations where there is no good way to say what node the value came // from. class FormattedValue { public: FormattedValue() : m_format(InvalidValueFormat) , m_value(0) { } FormattedValue(ValueFormat format, LValue value) : m_format(format) , m_value(value) { } bool operator!() const { ASSERT((m_format == InvalidValueFormat) == !m_value); return m_format == InvalidValueFormat; } ValueFormat format() const { return m_format; } LValue value() const { return m_value; } private: ValueFormat m_format; LValue m_value; }; static inline FormattedValue noValue() { return FormattedValue(); } static inline FormattedValue int32Value(LValue value) { return FormattedValue(ValueFormatInt32, value); } static inline FormattedValue booleanValue(LValue value) { return FormattedValue(ValueFormatBoolean, value); } static inline FormattedValue jsValueValue(LValue value) { return FormattedValue(ValueFormatJSValue, value); } static inline FormattedValue doubleValue(LValue value) { return FormattedValue(ValueFormatDouble, value); } } } // namespace JSC::FTL #endif // ENABLE(FTL_JIT) #endif // FTLFormattedValue_h