[][src]Struct futures::future::Empty

#[must_use = "futures do nothing unless polled"]
pub struct Empty<T, E> { /* fields omitted */ }

A future which is never resolved.

This future can be created with the empty function.

Trait Implementations

impl<T, E> Future for Empty<T, E>[src]

type Item = T

The type of value that this future will resolved with if it is successful. Read more

type Error = E

The type of error that this future will resolve with if it fails in a normal fashion. Read more

impl<T: Debug, E: Debug> Debug for Empty<T, E>[src]

Auto Trait Implementations

impl<T, E> Unpin for Empty<T, E> where
    E: Unpin,
    T: Unpin

impl<T, E> Send for Empty<T, E> where
    E: Send,
    T: Send

impl<T, E> Sync for Empty<T, E> where
    E: Sync,
    T: Sync

impl<T, E> UnwindSafe for Empty<T, E> where
    E: UnwindSafe,
    T: UnwindSafe

impl<T, E> RefUnwindSafe for Empty<T, E> where
    E: RefUnwindSafe,
    T: RefUnwindSafe

Blanket Implementations

impl<F> IntoFuture for F where
    F: Future

type Future = F

The future that this type can be converted into.

type Item = <F as Future>::Item

The item that the future may resolve with.

type Error = <F as Future>::Error

The error that the future may resolve with.

impl<T> From<T> for T[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> Into<U> for T where
    U: From<T>, 

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> Borrow<T> for T where
    T: ?Sized

impl<T> BorrowMut<T> for T where
    T: ?Sized

impl<T> Any for T where
    T: 'static + ?Sized