ImmutableArray<T>.CastUp<TDerived> Method

Definition

Namespace:

System.Collections.Immutable

Assembly:

System.Collections.Immutable.dll

Source:

ImmutableArray_1.Minimal.cs

Initializes a new instance of the ImmutableArray<T> struct based on the contents of an existing instance, allowing a covariant static cast to efficiently reuse the existing array.

public:
generic <typename TDerived>
 where TDerived : class, T static System::Collections::Immutable::ImmutableArray<T> CastUp(System::Collections::Immutable::ImmutableArray<TDerived> items);

public static System.Collections.Immutable.ImmutableArray<T> CastUp<TDerived> (System.Collections.Immutable.ImmutableArray<TDerived> items) where TDerived : class, T;

static member CastUp : System.Collections.Immutable.ImmutableArray<#'T> -> System.Collections.Immutable.ImmutableArray<'T>

Public Shared Function CastUp(Of TDerived As {Class, T}) (items As ImmutableArray(Of TDerived)) As ImmutableArray(Of T)

Type Parameters

TDerived

The type of array element to return.

Parameters

items

ImmutableArray<TDerived>

The array to initialize the array with. No copy is made.

Returns

ImmutableArray<T>

An immutable array instance with elements cast to the new type.

Remarks

Covariant upcasts from this method may be reversed by calling the As or CastArray method.