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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 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_SCAVENGER_H_ | 5 #ifndef V8_HEAP_SCAVENGER_H_ |
6 #define V8_HEAP_SCAVENGER_H_ | 6 #define V8_HEAP_SCAVENGER_H_ |
7 | 7 |
8 #include "src/heap/objects-visiting.h" | 8 #include "src/heap/objects-visiting.h" |
9 #include "src/heap/slot-set.h" | 9 #include "src/heap/slot-set.h" |
10 | 10 |
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23 | 23 |
24 // Callback function passed to Heap::Iterate etc. Copies an object if | 24 // Callback function passed to Heap::Iterate etc. Copies an object if |
25 // necessary, the object might be promoted to an old space. The caller must | 25 // necessary, the object might be promoted to an old space. The caller must |
26 // ensure the precondition that the object is (a) a heap object and (b) in | 26 // ensure the precondition that the object is (a) a heap object and (b) in |
27 // the heap's from space. | 27 // the heap's from space. |
28 static inline void ScavengeObject(HeapObject** p, HeapObject* object); | 28 static inline void ScavengeObject(HeapObject** p, HeapObject* object); |
29 static inline SlotCallbackResult CheckAndScavengeObject(Heap* heap, | 29 static inline SlotCallbackResult CheckAndScavengeObject(Heap* heap, |
30 Address slot_address); | 30 Address slot_address); |
31 | 31 |
32 // Slow part of {ScavengeObject} above. | 32 // Slow part of {ScavengeObject} above. |
33 static inline void ScavengeObjectSlow(HeapObject** p, HeapObject* object); | 33 static void ScavengeObjectSlow(HeapObject** p, HeapObject* object); |
34 | 34 |
35 // Chooses an appropriate static visitor table depending on the current state | 35 // Chooses an appropriate static visitor table depending on the current state |
36 // of the heap (i.e. incremental marking, logging and profiling). | 36 // of the heap (i.e. incremental marking, logging and profiling). |
37 void SelectScavengingVisitorsTable(); | 37 void SelectScavengingVisitorsTable(); |
38 | 38 |
39 Isolate* isolate(); | 39 Isolate* isolate(); |
40 Heap* heap() { return heap_; } | 40 Heap* heap() { return heap_; } |
41 | 41 |
42 private: | 42 private: |
43 Heap* heap_; | 43 Heap* heap_; |
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66 Object** end) final; | 66 Object** end) final; |
67 | 67 |
68 private: | 68 private: |
69 Heap* heap_; | 69 Heap* heap_; |
70 }; | 70 }; |
71 | 71 |
72 } // namespace internal | 72 } // namespace internal |
73 } // namespace v8 | 73 } // namespace v8 |
74 | 74 |
75 #endif // V8_HEAP_SCAVENGER_H_ | 75 #endif // V8_HEAP_SCAVENGER_H_ |
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