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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 // 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 |
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| 35 // Ecma-262 3rd 8.6.1 | 35 // Ecma-262 3rd 8.6.1 |
| 36 enum PropertyAttributes { | 36 enum PropertyAttributes { |
| 37 NONE = v8::None, | 37 NONE = v8::None, |
| 38 READ_ONLY = v8::ReadOnly, | 38 READ_ONLY = v8::ReadOnly, |
| 39 DONT_ENUM = v8::DontEnum, | 39 DONT_ENUM = v8::DontEnum, |
| 40 DONT_DELETE = v8::DontDelete, | 40 DONT_DELETE = v8::DontDelete, |
| 41 | 41 |
| 42 SEALED = DONT_DELETE, | 42 SEALED = DONT_DELETE, |
| 43 FROZEN = SEALED | READ_ONLY, | 43 FROZEN = SEALED | READ_ONLY, |
| 44 | 44 |
| 45 SYMBOLIC = 8, // Used to filter symbol names | 45 STRING = 8, // Used to filter symbols and string names |
| 46 DONT_SHOW = DONT_ENUM | SYMBOLIC, | 46 SYMBOLIC = 16, |
| 47 ABSENT = 16 // Used in runtime to indicate a property is absent. | 47 PRIVATE_SYMBOL = 32, |
| 48 |
| 49 DONT_SHOW = DONT_ENUM | SYMBOLIC | PRIVATE_SYMBOL, |
| 50 ABSENT = 64 // Used in runtime to indicate a property is absent. |
| 48 // ABSENT can never be stored in or returned from a descriptor's attributes | 51 // ABSENT can never be stored in or returned from a descriptor's attributes |
| 49 // bitfield. It is only used as a return value meaning the attributes of | 52 // bitfield. It is only used as a return value meaning the attributes of |
| 50 // a non-existent property. | 53 // a non-existent property. |
| 51 }; | 54 }; |
| 52 | 55 |
| 53 | 56 |
| 54 namespace v8 { | 57 namespace v8 { |
| 55 namespace internal { | 58 namespace internal { |
| 56 | 59 |
| 57 class Smi; | 60 class Smi; |
| 58 class Type; | 61 template<class> class TypeImpl; |
| 62 struct HeapTypeConfig; |
| 63 typedef TypeImpl<HeapTypeConfig> Type; |
| 59 class TypeInfo; | 64 class TypeInfo; |
| 60 | 65 |
| 61 // Type of properties. | 66 // Type of properties. |
| 62 // Order of properties is significant. | 67 // Order of properties is significant. |
| 63 // Must fit in the BitField PropertyDetails::TypeField. | 68 // Must fit in the BitField PropertyDetails::TypeField. |
| 64 // A copy of this is in mirror-debugger.js. | 69 // A copy of this is in mirror-debugger.js. |
| 65 enum PropertyType { | 70 enum PropertyType { |
| 66 // Only in slow mode. | 71 // Only in slow mode. |
| 67 NORMAL = 0, | 72 NORMAL = 0, |
| 68 // Only in fast mode. | 73 // Only in fast mode. |
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| 95 kNumRepresentations | 100 kNumRepresentations |
| 96 }; | 101 }; |
| 97 | 102 |
| 98 Representation() : kind_(kNone) { } | 103 Representation() : kind_(kNone) { } |
| 99 | 104 |
| 100 static Representation None() { return Representation(kNone); } | 105 static Representation None() { return Representation(kNone); } |
| 101 static Representation Tagged() { return Representation(kTagged); } | 106 static Representation Tagged() { return Representation(kTagged); } |
| 102 static Representation Integer8() { return Representation(kInteger8); } | 107 static Representation Integer8() { return Representation(kInteger8); } |
| 103 static Representation UInteger8() { return Representation(kUInteger8); } | 108 static Representation UInteger8() { return Representation(kUInteger8); } |
| 104 static Representation Integer16() { return Representation(kInteger16); } | 109 static Representation Integer16() { return Representation(kInteger16); } |
| 105 static Representation UInteger16() { | 110 static Representation UInteger16() { return Representation(kUInteger16); } |
| 106 return Representation(kUInteger16); | |
| 107 } | |
| 108 static Representation Smi() { return Representation(kSmi); } | 111 static Representation Smi() { return Representation(kSmi); } |
| 109 static Representation Integer32() { return Representation(kInteger32); } | 112 static Representation Integer32() { return Representation(kInteger32); } |
| 110 static Representation Double() { return Representation(kDouble); } | 113 static Representation Double() { return Representation(kDouble); } |
| 111 static Representation HeapObject() { return Representation(kHeapObject); } | 114 static Representation HeapObject() { return Representation(kHeapObject); } |
| 112 static Representation External() { return Representation(kExternal); } | 115 static Representation External() { return Representation(kExternal); } |
| 113 | 116 |
| 114 static Representation FromKind(Kind kind) { return Representation(kind); } | 117 static Representation FromKind(Kind kind) { return Representation(kind); } |
| 115 | 118 |
| 116 static Representation FromType(Handle<Type> type); | 119 static Representation FromType(Handle<Type> type); |
| 117 | 120 |
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| 317 PropertyDetails(int value, PropertyAttributes attributes) { | 320 PropertyDetails(int value, PropertyAttributes attributes) { |
| 318 value_ = AttributesField::update(value, attributes); | 321 value_ = AttributesField::update(value, attributes); |
| 319 } | 322 } |
| 320 | 323 |
| 321 uint32_t value_; | 324 uint32_t value_; |
| 322 }; | 325 }; |
| 323 | 326 |
| 324 } } // namespace v8::internal | 327 } } // namespace v8::internal |
| 325 | 328 |
| 326 #endif // V8_PROPERTY_DETAILS_H_ | 329 #endif // V8_PROPERTY_DETAILS_H_ |
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