• extra : of_fast_enumeration_state_t
• isa : OFObject
• itemsPtr : of_fast_enumeration_state_t
• length : of_range_t
• mutationsPtr : of_fast_enumeration_state_t
• next : of_list_object_t
• object : of_list_object_t
• prev : of_list_object_t
• start : of_range_t
• state : of_fast_enumeration_state_t