Struct futures_util::future::AndThen

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

Future for the and_then combinator, chaining a computation onto the end of another future which completes successfully.

This is created by the Future::and_then method.

Trait Implementations

impl<A: Debug, B: Debug, F: Debug> Debug for AndThen<A, B, F> where
    A: Future,
    B: IntoFuture,
    B::Future: Debug, 

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

Formats the value using the given formatter.

impl<A, B, F> Future for AndThen<A, B, F> where
    A: Future,
    B: IntoFuture<Error = A::Error>,
    F: FnOnce(A::Item) -> B, 

type Item = B::Item

A successful value

type Error = B::Error

An error

fn poll(&mut self, cx: &mut Context) -> Poll<B::Item, B::Error>

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