Trait futures::future::IntoFuture

[+] Show declaration

pub trait IntoFuture {
    type Future: Future<Item = Self::Item, Error = Self::Error>;
    type Item;
    type Error;
    fn into_future(self) -> Self::Future;
}

[−] Expand description

Class of types which can be converted into a future.

This trait is very similar to the IntoIterator trait and is intended to be used in a very similar fashion.

Associated Types

type Future: Future<Item = Self::Item, Error = Self::Error>[−]

The future that this type can be converted into.

type Item[−]

The item that the future may resolve with.

type Error[−]

The error that the future may resolve with.

Required Methods

fn into_future(self) -> Self::Future[−]

Consumes this object and produces a future.

Implementations on Foreign Types

impl<A, B> IntoFuture for (A, B) where     A: IntoFuture,     B: IntoFuture<Error = A::Error>,

[−] Expand description

type Future = Join<A::Future, B::Future>

type Item = (A::Item, B::Item)

type Error = A::Error

fn into_future(self) -> Self::Future

impl<A, B, C> IntoFuture for (A, B, C) where     A: IntoFuture,     B: IntoFuture<Error = A::Error>,     C: IntoFuture<Error = A::Error>,

[−] Expand description

type Future = Join3<A::Future, B::Future, C::Future>

type Item = (A::Item, B::Item, C::Item)

type Error = A::Error

fn into_future(self) -> Self::Future

impl<A, B, C, D> IntoFuture for (A, B, C, D) where     A: IntoFuture,     B: IntoFuture<Error = A::Error>,     C: IntoFuture<Error = A::Error>,     D: IntoFuture<Error = A::Error>,

[−] Expand description

type Future = Join4<A::Future, B::Future, C::Future, D::Future>

type Item = (A::Item, B::Item, C::Item, D::Item)

type Error = A::Error

fn into_future(self) -> Self::Future

impl<A, B, C, D, E> IntoFuture for (A, B, C, D, E) where     A: IntoFuture,     B: IntoFuture<Error = A::Error>,     C: IntoFuture<Error = A::Error>,     D: IntoFuture<Error = A::Error>,     E: IntoFuture<Error = A::Error>,

[−] Expand description

type Future = Join5<A::Future, B::Future, C::Future, D::Future, E::Future>

type Item = (A::Item, B::Item, C::Item, D::Item, E::Item)

type Error = A::Error

fn into_future(self) -> Self::Future

impl<T, E> IntoFuture for Result<T, E>

[−] Expand description

type Future = FutureResult<T, E>

type Item = T

type Error = E

fn into_future(self) -> FutureResult<T, E>

Implementors

• impl<F: Future> IntoFuture for F type Future = F; type Item = F::Item; type Error = F::Error;