[][src]Struct capnp::capability::Promise

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

A computation that might eventually resolve to a value of type T or to an error of type E. Dropping the promise cancels the computation.


impl<T, E> Promise<T, E>[src]

pub fn ok(value: T) -> Promise<T, E>[src]

pub fn err(error: E) -> Promise<T, E>[src]

Auto Trait Implementations

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

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

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

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

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

Blanket Implementations

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

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

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

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