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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_HEAP_MARK_COMPACT_H_ | 5 #ifndef V8_HEAP_MARK_COMPACT_H_ |
6 #define V8_HEAP_MARK_COMPACT_H_ | 6 #define V8_HEAP_MARK_COMPACT_H_ |
7 | 7 |
8 #include "src/base/bits.h" | 8 #include "src/base/bits.h" |
9 #include "src/heap/spaces.h" | 9 #include "src/heap/spaces.h" |
10 | 10 |
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765 // Mark objects reachable (transitively) from objects in the marking stack | 765 // Mark objects reachable (transitively) from objects in the marking stack |
766 // or overflowed in the heap. | 766 // or overflowed in the heap. |
767 void ProcessMarkingDeque(); | 767 void ProcessMarkingDeque(); |
768 | 768 |
769 // Mark objects reachable (transitively) from objects in the marking stack | 769 // Mark objects reachable (transitively) from objects in the marking stack |
770 // or overflowed in the heap. This respects references only considered in | 770 // or overflowed in the heap. This respects references only considered in |
771 // the final atomic marking pause including the following: | 771 // the final atomic marking pause including the following: |
772 // - Processing of objects reachable through Harmony WeakMaps. | 772 // - Processing of objects reachable through Harmony WeakMaps. |
773 // - Objects reachable due to host application logic like object groups | 773 // - Objects reachable due to host application logic like object groups |
774 // or implicit references' groups. | 774 // or implicit references' groups. |
775 void ProcessEphemeralMarking(ObjectVisitor* visitor); | 775 void ProcessEphemeralMarking(ObjectVisitor* visitor, |
| 776 bool only_process_harmony_weak_collections); |
776 | 777 |
777 // If the call-site of the top optimized code was not prepared for | 778 // If the call-site of the top optimized code was not prepared for |
778 // deoptimization, then treat the maps in the code as strong pointers, | 779 // deoptimization, then treat the maps in the code as strong pointers, |
779 // otherwise a map can die and deoptimize the code. | 780 // otherwise a map can die and deoptimize the code. |
780 void ProcessTopOptimizedFrame(ObjectVisitor* visitor); | 781 void ProcessTopOptimizedFrame(ObjectVisitor* visitor); |
781 | 782 |
782 // Mark objects reachable (transitively) from objects in the marking | 783 // Mark objects reachable (transitively) from objects in the marking |
783 // stack. This function empties the marking stack, but may leave | 784 // stack. This function empties the marking stack, but may leave |
784 // overflowed objects in the heap, in which case the marking stack's | 785 // overflowed objects in the heap, in which case the marking stack's |
785 // overflow flag will be set. | 786 // overflow flag will be set. |
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952 private: | 953 private: |
953 MarkCompactCollector* collector_; | 954 MarkCompactCollector* collector_; |
954 }; | 955 }; |
955 | 956 |
956 | 957 |
957 const char* AllocationSpaceName(AllocationSpace space); | 958 const char* AllocationSpaceName(AllocationSpace space); |
958 } | 959 } |
959 } // namespace v8::internal | 960 } // namespace v8::internal |
960 | 961 |
961 #endif // V8_HEAP_MARK_COMPACT_H_ | 962 #endif // V8_HEAP_MARK_COMPACT_H_ |
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