OBJC_SYNC_NOT_OWNING_THREAD_ERROR Declarationvar OBJC_SYNC_NOT_OWNING_THREAD_ERROR: Int { get } See AlsoEnumerationsObjCEnumerationImageOBJC_CLEAR_RESIDENT_STACKOBJC_COLLECT_IF_NEEDEDOBJC_EXHAUSTIVE_COLLECTIONOBJC_FULL_COLLECTIONOBJC_GENERATIONAL_COLLECTIONOBJC_RATIO_COLLECTIONOBJC_SYNC_SUCCESSOBJC_WAIT_UNTIL_DONE