Struct futures_util::future::UnitError

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#[must_use = "futures do nothing unless polled"]
pub struct UnitError<Fut> { /* fields omitted */ }

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Future for the unit_error combinator, turning a Future into a TryFuture.

This is created by the FutureExt::unit_error method.

Trait Implementations

impl<Fut: Debug> Debug for UnitError<Fut>

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fn fmt(&self, f: &mut Formatter) -> Result

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Formats the value using the given formatter.

impl<Fut: Unpin> Unpin for UnitError<Fut>

impl<Fut, T> Future for UnitError<Fut> where     Fut: Future<Output = T>,

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type Output = Result<T, ()>

🔬 This is a nightly-only experimental API. (futures_api)

futures in libcore are unstable

The result of the Future.

fn poll(self: PinMut<Self>, cx: &mut Context) -> Poll<Result<T, ()>>

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🔬 This is a nightly-only experimental API. (futures_api)

futures in libcore are unstable

Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available.