ValueTask<TResult>.Preserve Method
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Gets a ValueTask<TResult> that may be used at any point in the future.
public:
System::Threading::Tasks::ValueTask<TResult> Preserve();public System.Threading.Tasks.ValueTask<TResult> Preserve();member this.Preserve : unit -> System.Threading.Tasks.ValueTask<'Result>Public Function Preserve () As ValueTask(Of TResult)A task object for future use.
Because a ValueTask<TResult> can be backed by a pooled IValueTaskSource<TResult>, it is not safe to await an arbitrary ValueTask<TResult> multiple times. You can use the Preserve() method to convert this ValueTask<TResult> into the instance backed by a regular Task<TResult> that is safe to await multiple times. This method is similar to AsTask(), but it returns the same ValueTask<TResult> instance when this ValueTask<TResult> represents a successful synchronously completed operation. After calling Preserve() the original ValueTask<TResult> should never be used again.
| Produkt | Versioner |
|---|---|
| .NET | Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Standard | 2.0 (package-provided), 2.1 |
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