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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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903 return Heap::Object_symbol(); | 903 return Heap::Object_symbol(); |
904 } | 904 } |
905 | 905 |
906 | 906 |
907 void JSObject::JSObjectIterateBody(int object_size, ObjectVisitor* v) { | 907 void JSObject::JSObjectIterateBody(int object_size, ObjectVisitor* v) { |
908 // Iterate over all fields in the body. Assumes all are Object*. | 908 // Iterate over all fields in the body. Assumes all are Object*. |
909 IteratePointers(v, kPropertiesOffset, object_size); | 909 IteratePointers(v, kPropertiesOffset, object_size); |
910 } | 910 } |
911 | 911 |
912 | 912 |
913 Object* JSObject::Copy(PretenureFlag pretenure) { | |
914 // Never used to copy functions. If functions need to be copied we | |
915 // have to be careful to clear the literals array. | |
916 ASSERT(!IsJSFunction()); | |
917 | |
918 // Copy the elements and properties. | |
919 Object* elem = FixedArray::cast(elements())->Copy(); | |
920 if (elem->IsFailure()) return elem; | |
921 Object* prop = properties()->Copy(); | |
922 if (prop->IsFailure()) return prop; | |
923 | |
924 // Make the clone. | |
925 Object* clone = (pretenure == NOT_TENURED) ? | |
926 Heap::Allocate(map(), NEW_SPACE) : | |
927 Heap::Allocate(map(), OLD_POINTER_SPACE); | |
928 if (clone->IsFailure()) return clone; | |
929 JSObject::cast(clone)->CopyBody(this); | |
930 | |
931 // Set the new elements and properties. | |
932 JSObject::cast(clone)->set_elements(FixedArray::cast(elem)); | |
933 JSObject::cast(clone)->set_properties(FixedArray::cast(prop)); | |
934 | |
935 // Return the new clone. | |
936 return clone; | |
937 } | |
938 | |
939 | |
940 Object* JSObject::AddFastPropertyUsingMap(Map* new_map, | 913 Object* JSObject::AddFastPropertyUsingMap(Map* new_map, |
941 String* name, | 914 String* name, |
942 Object* value) { | 915 Object* value) { |
943 int index = new_map->PropertyIndexFor(name); | 916 int index = new_map->PropertyIndexFor(name); |
944 if (map()->unused_property_fields() == 0) { | 917 if (map()->unused_property_fields() == 0) { |
945 ASSERT(map()->unused_property_fields() == 0); | 918 ASSERT(map()->unused_property_fields() == 0); |
946 int new_unused = new_map->unused_property_fields(); | 919 int new_unused = new_map->unused_property_fields(); |
947 Object* values = | 920 Object* values = |
948 properties()->CopySize(properties()->length() + new_unused + 1); | 921 properties()->CopySize(properties()->length() + new_unused + 1); |
949 if (values->IsFailure()) return values; | 922 if (values->IsFailure()) return values; |
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6544 // No break point. | 6517 // No break point. |
6545 if (break_point_objects()->IsUndefined()) return 0; | 6518 if (break_point_objects()->IsUndefined()) return 0; |
6546 // Single beak point. | 6519 // Single beak point. |
6547 if (!break_point_objects()->IsFixedArray()) return 1; | 6520 if (!break_point_objects()->IsFixedArray()) return 1; |
6548 // Multiple break points. | 6521 // Multiple break points. |
6549 return FixedArray::cast(break_point_objects())->length(); | 6522 return FixedArray::cast(break_point_objects())->length(); |
6550 } | 6523 } |
6551 | 6524 |
6552 | 6525 |
6553 } } // namespace v8::internal | 6526 } } // namespace v8::internal |
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