projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| 81345200 A |
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 FTLFormattedValue_h | |
| 27 | #define FTLFormattedValue_h | |
| 28 | ||
| 29 | #if ENABLE(FTL_JIT) | |
| 30 | ||
| 31 | #include "FTLAbbreviations.h" | |
| 32 | #include "FTLValueFormat.h" | |
| 33 | ||
| 34 | namespace JSC { namespace FTL { | |
| 35 | ||
| 36 | // This class is mostly used for OSR; it's a way of specifying how a value is formatted | |
| 37 | // in cases where it wouldn't have been obvious from looking at other indicators (like | |
| 38 | // the type of the LLVMValueRef or the type of the DFG::Node). Typically this arises | |
| 39 | // because LLVMValueRef doesn't give us the granularity we need to begin with, and we | |
| 40 | // use this in situations where there is no good way to say what node the value came | |
| 41 | // from. | |
| 42 | ||
| 43 | class FormattedValue { | |
| 44 | public: | |
| 45 | FormattedValue() | |
| 46 | : m_format(InvalidValueFormat) | |
| 47 | , m_value(0) | |
| 48 | { | |
| 49 | } | |
| 50 | ||
| 51 | FormattedValue(ValueFormat format, LValue value) | |
| 52 | : m_format(format) | |
| 53 | , m_value(value) | |
| 54 | { | |
| 55 | } | |
| 56 | ||
| 57 | bool operator!() const | |
| 58 | { | |
| 59 | ASSERT((m_format == InvalidValueFormat) == !m_value); | |
| 60 | return m_format == InvalidValueFormat; | |
| 61 | } | |
| 62 | ||
| 63 | ValueFormat format() const { return m_format; } | |
| 64 | LValue value() const { return m_value; } | |
| 65 | ||
| 66 | private: | |
| 67 | ValueFormat m_format; | |
| 68 | LValue m_value; | |
| 69 | }; | |
| 70 | ||
| 71 | static inline FormattedValue noValue() { return FormattedValue(); } | |
| 72 | static inline FormattedValue int32Value(LValue value) { return FormattedValue(ValueFormatInt32, value); } | |
| 73 | static inline FormattedValue booleanValue(LValue value) { return FormattedValue(ValueFormatBoolean, value); } | |
| 74 | static inline FormattedValue jsValueValue(LValue value) { return FormattedValue(ValueFormatJSValue, value); } | |
| 75 | static inline FormattedValue doubleValue(LValue value) { return FormattedValue(ValueFormatDouble, value); } | |
| 76 | ||
| 77 | } } // namespace JSC::FTL | |
| 78 | ||
| 79 | #endif // ENABLE(FTL_JIT) | |
| 80 | ||
| 81 | #endif // FTLFormattedValue_h | |
| 82 |