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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
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Jakob Kummerow
2012/02/03 13:17:14
nit: 2012
Sven Panne
2012/02/03 13:33:14
Done.
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| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
| 11 // with the distribution. | 11 // with the distribution. |
| (...skipping 54 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
| 66 ELEMENTS_TRANSITION = 7, | 66 ELEMENTS_TRANSITION = 7, |
| 67 CONSTANT_TRANSITION = 8, // only in fast mode | 67 CONSTANT_TRANSITION = 8, // only in fast mode |
| 68 NULL_DESCRIPTOR = 9, // only in fast mode | 68 NULL_DESCRIPTOR = 9, // only in fast mode |
| 69 // There are no IC stubs for NULL_DESCRIPTORS. Therefore, | 69 // There are no IC stubs for NULL_DESCRIPTORS. Therefore, |
| 70 // NULL_DESCRIPTOR can be used as the type flag for IC stubs for | 70 // NULL_DESCRIPTOR can be used as the type flag for IC stubs for |
| 71 // nonexistent properties. | 71 // nonexistent properties. |
| 72 NONEXISTENT = NULL_DESCRIPTOR | 72 NONEXISTENT = NULL_DESCRIPTOR |
| 73 }; | 73 }; |
| 74 | 74 |
| 75 | 75 |
| 76 inline bool IsTransitionType(PropertyType type) { | |
| 77 switch (type) { | |
| 78 case MAP_TRANSITION: | |
| 79 case CONSTANT_TRANSITION: | |
| 80 case ELEMENTS_TRANSITION: | |
| 81 return true; | |
| 82 case NORMAL: | |
| 83 case FIELD: | |
| 84 case CONSTANT_FUNCTION: | |
| 85 case CALLBACKS: | |
| 86 case HANDLER: | |
| 87 case INTERCEPTOR: | |
| 88 case NULL_DESCRIPTOR: | |
| 89 return false; | |
| 90 } | |
| 91 UNREACHABLE(); // keep the compiler happy | |
| 92 return false; | |
| 93 } | |
| 94 | |
| 95 | |
| 96 inline bool IsRealProperty(PropertyType type) { | 76 inline bool IsRealProperty(PropertyType type) { |
| 97 switch (type) { | 77 switch (type) { |
| 98 case NORMAL: | 78 case NORMAL: |
| 99 case FIELD: | 79 case FIELD: |
| 100 case CONSTANT_FUNCTION: | 80 case CONSTANT_FUNCTION: |
| 101 case CALLBACKS: | 81 case CALLBACKS: |
| 102 case HANDLER: | 82 case HANDLER: |
| 103 case INTERCEPTOR: | 83 case INTERCEPTOR: |
| 104 return true; | 84 return true; |
| 105 case MAP_TRANSITION: | 85 case MAP_TRANSITION: |
| (...skipping 26 matching lines...) Expand all Loading... | |
| 132 ASSERT(attributes == this->attributes()); | 112 ASSERT(attributes == this->attributes()); |
| 133 ASSERT(index == this->index()); | 113 ASSERT(index == this->index()); |
| 134 } | 114 } |
| 135 | 115 |
| 136 // Conversion for storing details as Object*. | 116 // Conversion for storing details as Object*. |
| 137 explicit inline PropertyDetails(Smi* smi); | 117 explicit inline PropertyDetails(Smi* smi); |
| 138 inline Smi* AsSmi(); | 118 inline Smi* AsSmi(); |
| 139 | 119 |
| 140 PropertyType type() { return TypeField::decode(value_); } | 120 PropertyType type() { return TypeField::decode(value_); } |
| 141 | 121 |
| 142 bool IsTransition() { | |
| 143 PropertyType t = type(); | |
| 144 ASSERT(t != INTERCEPTOR); | |
| 145 return IsTransitionType(t); | |
| 146 } | |
| 147 | |
| 148 bool IsProperty() { | 122 bool IsProperty() { |
| 149 return IsRealProperty(type()); | 123 return IsRealProperty(type()); |
| 150 } | 124 } |
| 151 | 125 |
| 152 PropertyAttributes attributes() { return AttributesField::decode(value_); } | 126 PropertyAttributes attributes() { return AttributesField::decode(value_); } |
| 153 | 127 |
| 154 int index() { return StorageField::decode(value_); } | 128 int index() { return StorageField::decode(value_); } |
| 155 | 129 |
| 156 inline PropertyDetails AsDeleted(); | 130 inline PropertyDetails AsDeleted(); |
| 157 | 131 |
| (...skipping 15 matching lines...) Expand all Loading... | |
| 173 | 147 |
| 174 static const int kInitialIndex = 1; | 148 static const int kInitialIndex = 1; |
| 175 | 149 |
| 176 private: | 150 private: |
| 177 uint32_t value_; | 151 uint32_t value_; |
| 178 }; | 152 }; |
| 179 | 153 |
| 180 } } // namespace v8::internal | 154 } } // namespace v8::internal |
| 181 | 155 |
| 182 #endif // V8_PROPERTY_DETAILS_H_ | 156 #endif // V8_PROPERTY_DETAILS_H_ |
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