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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 "v8.h" | 5 #include "v8.h" |
6 | 6 |
7 #include "accessors.h" | 7 #include "accessors.h" |
8 #include "api.h" | 8 #include "api.h" |
9 #include "bootstrapper.h" | 9 #include "bootstrapper.h" |
10 #include "codegen.h" | 10 #include "codegen.h" |
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3630 // verification code has to cope with (temporarily) invalid objects. See | 3630 // verification code has to cope with (temporarily) invalid objects. See |
3631 // for example, JSArray::JSArrayVerify). | 3631 // for example, JSArray::JSArrayVerify). |
3632 Object* filler; | 3632 Object* filler; |
3633 // We cannot always fill with one_pointer_filler_map because objects | 3633 // We cannot always fill with one_pointer_filler_map because objects |
3634 // created from API functions expect their internal fields to be initialized | 3634 // created from API functions expect their internal fields to be initialized |
3635 // with undefined_value. | 3635 // with undefined_value. |
3636 // Pre-allocated fields need to be initialized with undefined_value as well | 3636 // Pre-allocated fields need to be initialized with undefined_value as well |
3637 // so that object accesses before the constructor completes (e.g. in the | 3637 // so that object accesses before the constructor completes (e.g. in the |
3638 // debugger) will not cause a crash. | 3638 // debugger) will not cause a crash. |
3639 if (map->constructor()->IsJSFunction() && | 3639 if (map->constructor()->IsJSFunction() && |
3640 JSFunction::cast(map->constructor())-> | 3640 JSFunction::cast(map->constructor())->shared()-> |
3641 IsInobjectSlackTrackingInProgress()) { | 3641 IsInobjectSlackTrackingInProgress()) { |
3642 // We might want to shrink the object later. | 3642 // We might want to shrink the object later. |
3643 ASSERT(obj->GetInternalFieldCount() == 0); | 3643 ASSERT(obj->GetInternalFieldCount() == 0); |
3644 filler = Heap::one_pointer_filler_map(); | 3644 filler = Heap::one_pointer_filler_map(); |
3645 } else { | 3645 } else { |
3646 filler = Heap::undefined_value(); | 3646 filler = Heap::undefined_value(); |
3647 } | 3647 } |
3648 obj->InitializeBody(map, Heap::undefined_value(), filler); | 3648 obj->InitializeBody(map, Heap::undefined_value(), filler); |
3649 } | 3649 } |
3650 | 3650 |
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6492 static_cast<int>(object_sizes_last_time_[index])); | 6492 static_cast<int>(object_sizes_last_time_[index])); |
6493 CODE_AGE_LIST_COMPLETE(ADJUST_LAST_TIME_OBJECT_COUNT) | 6493 CODE_AGE_LIST_COMPLETE(ADJUST_LAST_TIME_OBJECT_COUNT) |
6494 #undef ADJUST_LAST_TIME_OBJECT_COUNT | 6494 #undef ADJUST_LAST_TIME_OBJECT_COUNT |
6495 | 6495 |
6496 OS::MemCopy(object_counts_last_time_, object_counts_, sizeof(object_counts_)); | 6496 OS::MemCopy(object_counts_last_time_, object_counts_, sizeof(object_counts_)); |
6497 OS::MemCopy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_)); | 6497 OS::MemCopy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_)); |
6498 ClearObjectStats(); | 6498 ClearObjectStats(); |
6499 } | 6499 } |
6500 | 6500 |
6501 } } // namespace v8::internal | 6501 } } // namespace v8::internal |
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