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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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_PROTOTYPE_H_ | 5 #ifndef V8_PROTOTYPE_H_ |
6 #define V8_PROTOTYPE_H_ | 6 #define V8_PROTOTYPE_H_ |
7 | 7 |
8 #include "src/isolate.h" | 8 #include "src/isolate.h" |
9 #include "src/objects.h" | 9 #include "src/objects.h" |
10 | 10 |
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45 object_(receiver), | 45 object_(receiver), |
46 isolate_(isolate) { | 46 isolate_(isolate) { |
47 if (where_to_start == START_AT_PROTOTYPE) { | 47 if (where_to_start == START_AT_PROTOTYPE) { |
48 Advance(); | 48 Advance(); |
49 } | 49 } |
50 } | 50 } |
51 explicit PrototypeIterator(Map* receiver_map) | 51 explicit PrototypeIterator(Map* receiver_map) |
52 : did_jump_to_prototype_chain_(true), | 52 : did_jump_to_prototype_chain_(true), |
53 object_(receiver_map->prototype()), | 53 object_(receiver_map->prototype()), |
54 isolate_(receiver_map->GetIsolate()) {} | 54 isolate_(receiver_map->GetIsolate()) {} |
| 55 explicit PrototypeIterator(Handle<Map> receiver_map) |
| 56 : did_jump_to_prototype_chain_(true), |
| 57 object_(NULL), |
| 58 handle_(handle(receiver_map->prototype(), receiver_map->GetIsolate())), |
| 59 isolate_(receiver_map->GetIsolate()) {} |
55 ~PrototypeIterator() {} | 60 ~PrototypeIterator() {} |
56 | 61 |
57 Object* GetCurrent() const { | 62 Object* GetCurrent() const { |
58 ASSERT(handle_.is_null()); | 63 ASSERT(handle_.is_null()); |
59 return object_; | 64 return object_; |
60 } | 65 } |
61 static Handle<Object> GetCurrent(const PrototypeIterator& iterator) { | 66 static Handle<Object> GetCurrent(const PrototypeIterator& iterator) { |
62 ASSERT(!iterator.handle_.is_null()); | 67 ASSERT(!iterator.handle_.is_null()); |
63 return iterator.handle_; | 68 return iterator.handle_; |
64 } | 69 } |
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121 | 126 |
122 DISALLOW_COPY_AND_ASSIGN(PrototypeIterator); | 127 DISALLOW_COPY_AND_ASSIGN(PrototypeIterator); |
123 }; | 128 }; |
124 | 129 |
125 | 130 |
126 } // namespace internal | 131 } // namespace internal |
127 | 132 |
128 } // namespace v8 | 133 } // namespace v8 |
129 | 134 |
130 #endif // V8_PROTOTYPE_H_ | 135 #endif // V8_PROTOTYPE_H_ |
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