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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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321 } | 321 } |
322 | 322 |
323 | 323 |
324 template<typename StaticVisitor> | 324 template<typename StaticVisitor> |
325 void StaticMarkingVisitor<StaticVisitor>::MarkTransitionArray( | 325 void StaticMarkingVisitor<StaticVisitor>::MarkTransitionArray( |
326 Heap* heap, TransitionArray* transitions) { | 326 Heap* heap, TransitionArray* transitions) { |
327 if (!StaticVisitor::MarkObjectWithoutPush(heap, transitions)) return; | 327 if (!StaticVisitor::MarkObjectWithoutPush(heap, transitions)) return; |
328 | 328 |
329 // Skip recording the descriptors_pointer slot since the cell space | 329 // Skip recording the descriptors_pointer slot since the cell space |
330 // is not compacted and descriptors are referenced through a cell. | 330 // is not compacted and descriptors are referenced through a cell. |
331 StaticVisitor::MarkObject(heap, transitions->descriptors_pointer()); | 331 Object** descriptors_slot = transitions->GetDescriptorsSlot(); |
| 332 HeapObject* descriptors = HeapObject::cast(*descriptors_slot); |
| 333 StaticVisitor::MarkObject(heap, descriptors); |
| 334 heap->mark_compact_collector()->RecordSlot( |
| 335 descriptors_slot, descriptors_slot, descriptors); |
332 | 336 |
333 // Simple transitions do not have keys nor prototype transitions. | 337 // Simple transitions do not have keys nor prototype transitions. |
334 if (transitions->IsSimpleTransition()) return; | 338 if (transitions->IsSimpleTransition()) return; |
335 | 339 |
336 if (transitions->HasPrototypeTransitions()) { | 340 if (transitions->HasPrototypeTransitions()) { |
337 // Mark prototype transitions array but do not push it onto marking | 341 // Mark prototype transitions array but do not push it onto marking |
338 // stack, this will make references from it weak. We will clean dead | 342 // stack, this will make references from it weak. We will clean dead |
339 // prototype transitions in ClearNonLiveTransitions. | 343 // prototype transitions in ClearNonLiveTransitions. |
340 Object** slot = transitions->GetPrototypeTransitionsSlot(); | 344 Object** slot = transitions->GetPrototypeTransitionsSlot(); |
341 HeapObject* obj = HeapObject::cast(*slot); | 345 HeapObject* obj = HeapObject::cast(*slot); |
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400 RelocIterator it(this, mode_mask); | 404 RelocIterator it(this, mode_mask); |
401 for (; !it.done(); it.next()) { | 405 for (; !it.done(); it.next()) { |
402 it.rinfo()->template Visit<StaticVisitor>(heap); | 406 it.rinfo()->template Visit<StaticVisitor>(heap); |
403 } | 407 } |
404 } | 408 } |
405 | 409 |
406 | 410 |
407 } } // namespace v8::internal | 411 } } // namespace v8::internal |
408 | 412 |
409 #endif // V8_OBJECTS_VISITING_INL_H_ | 413 #endif // V8_OBJECTS_VISITING_INL_H_ |
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