| 28 | |
| 29 | template <class TTObjectsDataProvider> |
| 30 | static TTObjectsDataProvider GetMaybeSubsetDataProvider( |
| 31 | TTObjectsDataProvider&& objectsDataProvider, |
| 32 | TMaybe<TArraySubsetIndexing<ui32>> subsetForGetSubset, |
| 33 | TMaybe<EObjectsOrder> objectsOrderForGetSubset, |
| 34 | NPar::ILocalExecutor* localExecutor |
| 35 | ) { |
| 36 | if (subsetForGetSubset.Defined()) { |
| 37 | TObjectsGroupingSubset objectsGroupingSubset = GetSubset( |
| 38 | objectsDataProvider.GetObjectsGrouping(), |
| 39 | TArraySubsetIndexing<ui32>(*subsetForGetSubset), |
| 40 | *objectsOrderForGetSubset |
| 41 | ); |
| 42 | |
| 43 | auto subsetDataProvider = objectsDataProvider.GetSubset( |
| 44 | objectsGroupingSubset, |
| 45 | NSystemInfo::TotalMemorySize(), |
| 46 | localExecutor |
| 47 | ); |
| 48 | objectsDataProvider = std::move( |
| 49 | dynamic_cast<TTObjectsDataProvider&>(*subsetDataProvider.Get()) |
| 50 | ); |
| 51 | } |
| 52 | return std::move(objectsDataProvider); |
| 53 | } |
| 54 | |
| 55 | template <class T> |
| 56 | bool Equal(TMaybeData<TConstArrayRef<T>> lhs, TMaybeData<TVector<T>> rhs) { |