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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef V8_PROPERTY_DETAILS_H_ | 5 #ifndef V8_PROPERTY_DETAILS_H_ |
| 6 #define V8_PROPERTY_DETAILS_H_ | 6 #define V8_PROPERTY_DETAILS_H_ |
| 7 | 7 |
| 8 #include "include/v8.h" | 8 #include "include/v8.h" |
| 9 #include "src/allocation.h" | 9 #include "src/allocation.h" |
| 10 #include "src/utils.h" | 10 #include "src/utils.h" |
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| 115 if (IsHeapObject()) return other.IsNone(); | 115 if (IsHeapObject()) return other.IsNone(); |
| 116 if (kind_ == kUInteger8 && other.kind_ == kInteger8) return false; | 116 if (kind_ == kUInteger8 && other.kind_ == kInteger8) return false; |
| 117 if (kind_ == kUInteger16 && other.kind_ == kInteger16) return false; | 117 if (kind_ == kUInteger16 && other.kind_ == kInteger16) return false; |
| 118 return kind_ > other.kind_; | 118 return kind_ > other.kind_; |
| 119 } | 119 } |
| 120 | 120 |
| 121 bool fits_into(const Representation& other) const { | 121 bool fits_into(const Representation& other) const { |
| 122 return other.is_more_general_than(*this) || other.Equals(*this); | 122 return other.is_more_general_than(*this) || other.Equals(*this); |
| 123 } | 123 } |
| 124 | 124 |
| 125 bool CanContainDouble(double value); | |
| 126 | |
| 127 Representation generalize(Representation other) { | 125 Representation generalize(Representation other) { |
| 128 if (other.fits_into(*this)) return *this; | 126 if (other.fits_into(*this)) return *this; |
| 129 if (other.is_more_general_than(*this)) return other; | 127 if (other.is_more_general_than(*this)) return other; |
| 130 return Representation::Tagged(); | 128 return Representation::Tagged(); |
| 131 } | 129 } |
| 132 | 130 |
| 133 int size() const { | 131 int size() const { |
| 134 DCHECK(!IsNone()); | 132 DCHECK(!IsNone()); |
| 135 if (IsInteger8() || IsUInteger8()) { | 133 if (IsInteger8() || IsUInteger8()) { |
| 136 return sizeof(uint8_t); | 134 return sizeof(uint8_t); |
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| 296 PropertyDetails(int value, PropertyAttributes attributes) { | 294 PropertyDetails(int value, PropertyAttributes attributes) { |
| 297 value_ = AttributesField::update(value, attributes); | 295 value_ = AttributesField::update(value, attributes); |
| 298 } | 296 } |
| 299 | 297 |
| 300 uint32_t value_; | 298 uint32_t value_; |
| 301 }; | 299 }; |
| 302 | 300 |
| 303 } } // namespace v8::internal | 301 } } // namespace v8::internal |
| 304 | 302 |
| 305 #endif // V8_PROPERTY_DETAILS_H_ | 303 #endif // V8_PROPERTY_DETAILS_H_ |
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