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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 #include "src/heap/heap.h" | 5 #include "src/heap/heap.h" |
6 | 6 |
7 #include "src/accessors.h" | 7 #include "src/accessors.h" |
8 #include "src/api.h" | 8 #include "src/api.h" |
9 #include "src/ast/scopeinfo.h" | 9 #include "src/ast/scopeinfo.h" |
10 #include "src/base/bits.h" | 10 #include "src/base/bits.h" |
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759 | 759 |
760 void Heap::PreprocessStackTraces() { | 760 void Heap::PreprocessStackTraces() { |
761 WeakFixedArray::Iterator iterator(weak_stack_trace_list()); | 761 WeakFixedArray::Iterator iterator(weak_stack_trace_list()); |
762 FixedArray* elements; | 762 FixedArray* elements; |
763 while ((elements = iterator.Next<FixedArray>())) { | 763 while ((elements = iterator.Next<FixedArray>())) { |
764 for (int j = 1; j < elements->length(); j += 4) { | 764 for (int j = 1; j < elements->length(); j += 4) { |
765 Object* maybe_code = elements->get(j + 2); | 765 Object* maybe_code = elements->get(j + 2); |
766 // If GC happens while adding a stack trace to the weak fixed array, | 766 // If GC happens while adding a stack trace to the weak fixed array, |
767 // which has been copied into a larger backing store, we may run into | 767 // which has been copied into a larger backing store, we may run into |
768 // a stack trace that has already been preprocessed. Guard against this. | 768 // a stack trace that has already been preprocessed. Guard against this. |
769 if (!maybe_code->IsAbstractCode()) break; | 769 if (!maybe_code->IsCode()) break; |
770 AbstractCode* abstract_code = AbstractCode::cast(maybe_code); | 770 Code* code = Code::cast(maybe_code); |
771 int offset = Smi::cast(elements->get(j + 3))->value(); | 771 int offset = Smi::cast(elements->get(j + 3))->value(); |
772 int pos = abstract_code->SourcePosition(offset); | 772 int pos = code->SourcePosition(offset); |
773 elements->set(j + 2, Smi::FromInt(pos)); | 773 elements->set(j + 2, Smi::FromInt(pos)); |
774 } | 774 } |
775 } | 775 } |
776 // We must not compact the weak fixed list here, as we may be in the middle | 776 // We must not compact the weak fixed list here, as we may be in the middle |
777 // of writing to it, when the GC triggered. Instead, we reset the root value. | 777 // of writing to it, when the GC triggered. Instead, we reset the root value. |
778 set_weak_stack_trace_list(Smi::FromInt(0)); | 778 set_weak_stack_trace_list(Smi::FromInt(0)); |
779 } | 779 } |
780 | 780 |
781 | 781 |
782 class GCCallbacksScope { | 782 class GCCallbacksScope { |
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6436 } | 6436 } |
6437 | 6437 |
6438 | 6438 |
6439 // static | 6439 // static |
6440 int Heap::GetStaticVisitorIdForMap(Map* map) { | 6440 int Heap::GetStaticVisitorIdForMap(Map* map) { |
6441 return StaticVisitorBase::GetVisitorId(map); | 6441 return StaticVisitorBase::GetVisitorId(map); |
6442 } | 6442 } |
6443 | 6443 |
6444 } // namespace internal | 6444 } // namespace internal |
6445 } // namespace v8 | 6445 } // namespace v8 |
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