Lines Matching defs:backing_store
9128 FixedArray* backing_store = FixedArray::cast(elements());
9129 if (backing_store->map() == GetHeap()->non_strict_arguments_elements_map()) {
9130 backing_store = FixedArray::cast(backing_store->get(1));
9133 if (!maybe->To(&backing_store)) return maybe;
9135 uint32_t capacity = static_cast<uint32_t>(backing_store->length());
9138 (index >= capacity || backing_store->get(index)->IsTheHole())) {
9215 backing_store->set(index, value);
9810 FixedArray* backing_store = NULL;
9815 backing_store = FixedArray::cast(backing_store_base);
9816 if (backing_store->IsDictionary()) {
9818 SeededNumberDictionary::cast(backing_store);
9826 backing_store = FixedArray::cast(backing_store_base);
9827 *capacity = backing_store->length();
9829 if (!backing_store->get(i)->IsTheHole()) ++(*used);
