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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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496 } | 496 } |
497 | 497 |
498 static void ValidateImpl(JSObject* holder) { | 498 static void ValidateImpl(JSObject* holder) { |
499 FixedArrayBase* fixed_array_base = holder->elements(); | 499 FixedArrayBase* fixed_array_base = holder->elements(); |
500 // When objects are first allocated, its elements are Failures. | 500 // When objects are first allocated, its elements are Failures. |
501 if (fixed_array_base->IsFailure()) return; | 501 if (fixed_array_base->IsFailure()) return; |
502 if (!fixed_array_base->IsHeapObject()) return; | 502 if (!fixed_array_base->IsHeapObject()) return; |
503 Map* map = fixed_array_base->map(); | 503 Map* map = fixed_array_base->map(); |
504 // Arrays that have been shifted in place can't be verified. | 504 // Arrays that have been shifted in place can't be verified. |
505 Heap* heap = holder->GetHeap(); | 505 Heap* heap = holder->GetHeap(); |
506 if (map == heap->raw_unchecked_one_pointer_filler_map() || | 506 if (map == heap->one_pointer_filler_map() || |
507 map == heap->raw_unchecked_two_pointer_filler_map() || | 507 map == heap->two_pointer_filler_map() || |
508 map == heap->free_space_map()) { | 508 map == heap->free_space_map()) { |
509 return; | 509 return; |
510 } | 510 } |
511 int length = 0; | 511 int length = 0; |
512 if (holder->IsJSArray()) { | 512 if (holder->IsJSArray()) { |
513 Object* length_obj = JSArray::cast(holder)->length(); | 513 Object* length_obj = JSArray::cast(holder)->length(); |
514 if (length_obj->IsSmi()) { | 514 if (length_obj->IsSmi()) { |
515 length = Smi::cast(length_obj)->value(); | 515 length = Smi::cast(length_obj)->value(); |
516 } | 516 } |
517 } else { | 517 } else { |
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1680 if (!maybe_obj->To(&new_backing_store)) return maybe_obj; | 1680 if (!maybe_obj->To(&new_backing_store)) return maybe_obj; |
1681 new_backing_store->set(0, length); | 1681 new_backing_store->set(0, length); |
1682 { MaybeObject* result = array->SetContent(new_backing_store); | 1682 { MaybeObject* result = array->SetContent(new_backing_store); |
1683 if (result->IsFailure()) return result; | 1683 if (result->IsFailure()) return result; |
1684 } | 1684 } |
1685 return array; | 1685 return array; |
1686 } | 1686 } |
1687 | 1687 |
1688 | 1688 |
1689 } } // namespace v8::internal | 1689 } } // namespace v8::internal |
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