Struct futures::future::OrElse [−][src]
#[must_use = "futures do nothing unless polled"]pub struct OrElse<Fut1, Fut2, F> { /* fields omitted */ }
Future for the or_else combinator, chaining a computation onto the end of
a future which fails with an error.
This is created by the Future::or_else method.
Trait Implementations
impl<Fut1, Fut2, F> Debug for OrElse<Fut1, Fut2, F> where
F: Debug,
Fut1: Debug,
Fut2: Debug, [src]
impl<Fut1, Fut2, F> Debug for OrElse<Fut1, Fut2, F> where
F: Debug,
Fut1: Debug,
Fut2: Debug, fn fmt(&self, f: &mut Formatter) -> Result<(), Error>[src]
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>Formats the value using the given formatter. Read more
impl<Fut1, Fut2, F> Future for OrElse<Fut1, Fut2, F> where
F: FnOnce(<Fut1 as TryFuture>::Error) -> Fut2,
Fut1: TryFuture,
Fut2: TryFuture<Ok = <Fut1 as TryFuture>::Ok>, [src]
impl<Fut1, Fut2, F> Future for OrElse<Fut1, Fut2, F> where
F: FnOnce(<Fut1 as TryFuture>::Error) -> Fut2,
Fut1: TryFuture,
Fut2: TryFuture<Ok = <Fut1 as TryFuture>::Ok>, type Output = Result<<Fut2 as TryFuture>::Ok, <Fut2 as TryFuture>::Error>
🔬 This is a nightly-only experimental API. (futures_api)
futures in libcore are unstable
The result of the Future.
fn poll(
self: PinMut<OrElse<Fut1, Fut2, F>>,
cx: &mut Context
) -> Poll<<OrElse<Fut1, Fut2, F> as Future>::Output>[src]
fn poll(
self: PinMut<OrElse<Fut1, Fut2, F>>,
cx: &mut Context
) -> Poll<<OrElse<Fut1, Fut2, F> as Future>::Output>🔬 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