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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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553 BasicJsonStringifier::Result BasicJsonStringifier::SerializeJSObject( | 553 BasicJsonStringifier::Result BasicJsonStringifier::SerializeJSObject( |
554 Handle<JSObject> object) { | 554 Handle<JSObject> object) { |
555 HandleScope handle_scope(isolate_); | 555 HandleScope handle_scope(isolate_); |
556 Result stack_push = StackPush(object); | 556 Result stack_push = StackPush(object); |
557 if (stack_push != SUCCESS) return stack_push; | 557 if (stack_push != SUCCESS) return stack_push; |
558 if (object->IsJSGlobalProxy()) { | 558 if (object->IsJSGlobalProxy()) { |
559 object = Handle<JSObject>( | 559 object = Handle<JSObject>( |
560 JSObject::cast(object->GetPrototype()), isolate_); | 560 JSObject::cast(object->GetPrototype()), isolate_); |
561 ASSERT(object->IsGlobalObject()); | 561 ASSERT(object->IsGlobalObject()); |
562 } | 562 } |
563 bool has_exception = false; | 563 |
564 Handle<FixedArray> contents = | |
565 GetKeysInFixedArrayFor(object, LOCAL_ONLY, &has_exception); | |
566 if (has_exception) return EXCEPTION; | |
567 Append('{'); | 564 Append('{'); |
568 bool comma = false; | 565 bool comma = false; |
569 for (int i = 0; i < contents->length(); i++) { | 566 |
570 Object* key = contents->get(i); | 567 if (object->HasFastProperties() && |
571 Handle<String> key_handle; | 568 !object->HasIndexedInterceptor() && |
572 Handle<Object> property; | 569 !object->HasNamedInterceptor() && |
573 if (key->IsString()) { | 570 object->elements() == isolate_->heap()->empty_fixed_array()) { |
574 key_handle = Handle<String>(String::cast(key), isolate_); | 571 Handle<DescriptorArray> descs( |
575 property = GetProperty(object, key_handle); | 572 object->map()->instance_descriptors(), isolate_); |
576 } else { | 573 int num_desc = object->map()->NumberOfOwnDescriptors(); |
577 ASSERT(key->IsNumber()); | 574 Handle<Map> map(object->map()); |
578 key_handle = factory_->NumberToString(Handle<Object>(key, isolate_)); | 575 bool map_changed = false; |
579 uint32_t index; | 576 for (int i = 0; i < num_desc; i++) { |
580 if (key->IsSmi()) { | 577 Handle<String> key(descs->GetKey(i), isolate_); |
581 property = Object::GetElement(object, Smi::cast(key)->value()); | 578 PropertyDetails details = descs->GetDetails(i); |
582 } else if (key_handle->AsArrayIndex(&index)) { | 579 if (details.IsDontEnum()) continue; |
583 property = Object::GetElement(object, index); | 580 Handle<Object> property; |
581 if (details.type() == FIELD && !map_changed) { | |
Toon Verwaest
2012/11/05 12:57:35
Also check for IsDeleted().
| |
582 property = Handle<Object>( | |
583 object->FastPropertyAt(descs->GetFieldIndex(i)), isolate_); | |
584 } else { | 584 } else { |
585 property = GetProperty(object, key); | |
586 } | |
587 if (property.is_null()) return EXCEPTION; | |
588 Result result = SerializeProperty(property, comma, key); | |
589 if (!comma && result == SUCCESS) comma = true; | |
590 if (result >= EXCEPTION) return result; | |
591 if (*map != object->map()) map_changed = true; | |
592 } | |
593 } else { | |
594 bool has_exception = false; | |
595 Handle<FixedArray> contents = | |
596 GetKeysInFixedArrayFor(object, LOCAL_ONLY, &has_exception); | |
597 if (has_exception) return EXCEPTION; | |
598 | |
599 for (int i = 0; i < contents->length(); i++) { | |
600 Object* key = contents->get(i); | |
601 Handle<String> key_handle; | |
602 Handle<Object> property; | |
603 if (key->IsString()) { | |
604 key_handle = Handle<String>(String::cast(key), isolate_); | |
585 property = GetProperty(object, key_handle); | 605 property = GetProperty(object, key_handle); |
606 } else { | |
607 ASSERT(key->IsNumber()); | |
608 key_handle = factory_->NumberToString(Handle<Object>(key, isolate_)); | |
609 uint32_t index; | |
610 if (key->IsSmi()) { | |
611 property = Object::GetElement(object, Smi::cast(key)->value()); | |
612 } else if (key_handle->AsArrayIndex(&index)) { | |
613 property = Object::GetElement(object, index); | |
614 } else { | |
615 property = GetProperty(object, key_handle); | |
616 } | |
586 } | 617 } |
618 if (property.is_null()) return EXCEPTION; | |
619 Result result = SerializeProperty(property, comma, key_handle); | |
620 if (!comma && result == SUCCESS) comma = true; | |
621 if (result >= EXCEPTION) return result; | |
587 } | 622 } |
588 if (property.is_null()) return EXCEPTION; | |
589 Result result = SerializeProperty(property, comma, key_handle); | |
590 if (!comma && result == SUCCESS) comma = true; | |
591 if (result >= EXCEPTION) return result; | |
592 } | 623 } |
624 | |
593 Append('}'); | 625 Append('}'); |
594 StackPop(); | 626 StackPop(); |
595 current_part_ = handle_scope.CloseAndEscape(current_part_); | 627 current_part_ = handle_scope.CloseAndEscape(current_part_); |
596 return SUCCESS; | 628 return SUCCESS; |
597 } | 629 } |
598 | 630 |
599 | 631 |
600 void BasicJsonStringifier::ShrinkCurrentPart() { | 632 void BasicJsonStringifier::ShrinkCurrentPart() { |
601 ASSERT(current_index_ < part_length_); | 633 ASSERT(current_index_ < part_length_); |
602 if (current_index_ == 0) { | 634 if (current_index_ == 0) { |
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763 SerializeString_<false, char>(flat.ToAsciiVector(), object); | 795 SerializeString_<false, char>(flat.ToAsciiVector(), object); |
764 } else { | 796 } else { |
765 SerializeString_<false, uc16>(flat.ToUC16Vector(), object); | 797 SerializeString_<false, uc16>(flat.ToUC16Vector(), object); |
766 } | 798 } |
767 } | 799 } |
768 } | 800 } |
769 | 801 |
770 } } // namespace v8::internal | 802 } } // namespace v8::internal |
771 | 803 |
772 #endif // V8_JSON_STRINGIFIER_H_ | 804 #endif // V8_JSON_STRINGIFIER_H_ |
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