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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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117 if (IsHeapObject()) return other.IsNone(); | 117 if (IsHeapObject()) return other.IsNone(); |
118 if (kind_ == kUInteger8 && other.kind_ == kInteger8) return false; | 118 if (kind_ == kUInteger8 && other.kind_ == kInteger8) return false; |
119 if (kind_ == kUInteger16 && other.kind_ == kInteger16) return false; | 119 if (kind_ == kUInteger16 && other.kind_ == kInteger16) return false; |
120 return kind_ > other.kind_; | 120 return kind_ > other.kind_; |
121 } | 121 } |
122 | 122 |
123 bool fits_into(const Representation& other) const { | 123 bool fits_into(const Representation& other) const { |
124 return other.is_more_general_than(*this) || other.Equals(*this); | 124 return other.is_more_general_than(*this) || other.Equals(*this); |
125 } | 125 } |
126 | 126 |
127 bool CanContainDouble(double value); | |
128 | |
129 Representation generalize(Representation other) { | 127 Representation generalize(Representation other) { |
130 if (other.fits_into(*this)) return *this; | 128 if (other.fits_into(*this)) return *this; |
131 if (other.is_more_general_than(*this)) return other; | 129 if (other.is_more_general_than(*this)) return other; |
132 return Representation::Tagged(); | 130 return Representation::Tagged(); |
133 } | 131 } |
134 | 132 |
135 int size() const { | 133 int size() const { |
136 ASSERT(!IsNone()); | 134 ASSERT(!IsNone()); |
137 if (IsInteger8() || IsUInteger8()) { | 135 if (IsInteger8() || IsUInteger8()) { |
138 return sizeof(uint8_t); | 136 return sizeof(uint8_t); |
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298 PropertyDetails(int value, PropertyAttributes attributes) { | 296 PropertyDetails(int value, PropertyAttributes attributes) { |
299 value_ = AttributesField::update(value, attributes); | 297 value_ = AttributesField::update(value, attributes); |
300 } | 298 } |
301 | 299 |
302 uint32_t value_; | 300 uint32_t value_; |
303 }; | 301 }; |
304 | 302 |
305 } } // namespace v8::internal | 303 } } // namespace v8::internal |
306 | 304 |
307 #endif // V8_PROPERTY_DETAILS_H_ | 305 #endif // V8_PROPERTY_DETAILS_H_ |
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