[][src]Struct futures_util::try_future::UnwrapOrElse

#[must_use = "futures do nothing unless polled"]
pub struct UnwrapOrElse<Fut, F> { /* fields omitted */ }
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Future for the unwrap_or_else combinator.

Trait Implementations

impl<Fut: Debug, F: Debug> Debug for UnwrapOrElse<Fut, F>
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Formats the value using the given formatter. Read more

impl<Fut: Unpin, F> Unpin for UnwrapOrElse<Fut, F>
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impl<Fut, F> Future for UnwrapOrElse<Fut, F> where
    Fut: TryFuture,
    F: FnOnce(Fut::Error) -> Fut::Ok
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🔬 This is a nightly-only experimental API. (futures_api)

futures in libcore are unstable

The result of the Future.

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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. Read more

Auto Trait Implementations

impl<Fut, F> Send for UnwrapOrElse<Fut, F> where
    F: Send,
    Fut: Send

impl<Fut, F> Sync for UnwrapOrElse<Fut, F> where
    F: Sync,
    Fut: Sync

Blanket Implementations

impl<T> FutureExt for T where
    T: Future + ?Sized
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Map this future's output to a different type, returning a new future of the resulting type. Read more

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Chain on a computation for when a future finished, passing the result of the future to the provided closure f. Read more

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Joins the result of two futures, waiting for them both to complete. Read more

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Same as join, but with more futures. Read more

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Same as join, but with more futures. Read more

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Same as join, but with more futures. Read more

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Convert this future into a single element stream. Read more

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Flatten the execution of this future when the successful result of this future is itself another future. Read more

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Flatten the execution of this future when the successful result of this future is a stream. Read more

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Fuse a future such that poll will never again be called once it has completed. Read more

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Do something with the output of a future before passing it on. Read more

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Catches unwinding panics while polling the future. Read more

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Create a cloneable handle to this future where all handles will resolve to the same result. Read more

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Wrap the future in a Box, pinning it.

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Turns a Future into a TryFuture with Error = ().

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Assigns the provided Spawn to be used when spawning tasks from within the future. Read more

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A convenience for calling Future::poll on Unpin future types.

impl<Fut> TryFutureExt for Fut where
    Fut: TryFuture
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Flattens the execution of this future when the successful result of this future is a Sink. Read more

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Maps this future's success value to a different value. Read more

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Maps this future's error value to a different value. Read more

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Maps this future's Error to a new error type using the Into trait. Read more

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Executes another future after this one resolves successfully. The success value is passed to a closure to create this subsequent future. Read more

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Executes another future if this one resolves to an error. The error value is passed to a closure to create this subsequent future. Read more

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Unwraps this future's ouput, producing a future with this future's Ok type as its Output type. Read more

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Wraps a TryFuture into a future compatable with libraries using futures 0.1 future definitons. Requires the compat feature to enable. Read more

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Wraps a TryFuture into a type that implements Future. Read more

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Joins the result of two futures, waiting for them both to complete or for one to produce an error. Read more

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Same as try_join, but with more futures. Read more

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Same as try_join, but with more futures. Read more

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Same as try_join, but with more futures. Read more

impl<T> From for T
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Performs the conversion.

impl<T, U> Into for T where
    U: From<T>, 
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Performs the conversion.

impl<T, U> TryFrom for T where
    T: From<U>, 
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🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T> Borrow for T where
    T: ?Sized
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Important traits for &'a mut R
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Immutably borrows from an owned value. Read more

impl<T> Any for T where
    T: 'static + ?Sized
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🔬 This is a nightly-only experimental API. (get_type_id)

this method will likely be replaced by an associated static

Gets the TypeId of self. Read more

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T> BorrowMut for T where
    T: ?Sized
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Important traits for &'a mut R
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Mutably borrows from an owned value. Read more

impl<F, T, E> TryFuture for F where
    F: Future<Output = Result<T, E>>, 
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The type of successful values yielded by this future

The type of failures yielded by this future

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Poll this TryFuture as if it were a Future. Read more