Struct futures::future::ErrInto

#[must_use = "futures do nothing unless polled"]
pub struct ErrInto<A, E> where
    A: Future,  { /* fields omitted */ }

Future for the err_into combinator, changing the error type of a future.

This is created by the Future::err_into method.

Trait Implementations

impl<A, E> Debug for ErrInto<A, E> where
    A: Debug + Future,
    E: Debug, 

fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl<A, E> Future for ErrInto<A, E> where
    A: Future,
    <A as Future>::Error: Into<E>, 

type Item = <A as Future>::Item

A successful value

type Error = E

An error

fn poll(&mut self, cx: &mut Context) -> Result<Async<<A as Future>::Item>, E>

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