Struct actix_web::actix::fut::Map [−][src]
#[must_use = "futures do nothing unless polled"]pub struct Map<A, F> where
A: ActorFuture, { /* fields omitted */ }
Future for the map
combinator, changing the type of a future.
This is created by the ActorFuture::map
method.
Trait Implementations
impl<U, A, F> ActorFuture for Map<A, F> where
A: ActorFuture,
F: FnOnce(<A as ActorFuture>::Item, &mut <A as ActorFuture>::Actor, &mut <<A as ActorFuture>::Actor as Actor>::Context) -> U,
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impl<U, A, F> ActorFuture for Map<A, F> where
A: ActorFuture,
F: FnOnce(<A as ActorFuture>::Item, &mut <A as ActorFuture>::Actor, &mut <<A as ActorFuture>::Actor as Actor>::Context) -> U,
type Item = U
The type of value that this future will resolved with if it is successful. Read more
type Error = <A as ActorFuture>::Error
The type of error that this future will resolve with if it fails in a normal fashion. Read more
type Actor = <A as ActorFuture>::Actor
The actor within which this future runs
fn poll(
&mut self,
act: &mut <Map<A, F> as ActorFuture>::Actor,
ctx: &mut <<A as ActorFuture>::Actor as Actor>::Context
) -> Result<Async<U>, <A as ActorFuture>::Error>
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fn poll(
&mut self,
act: &mut <Map<A, F> as ActorFuture>::Actor,
ctx: &mut <<A as ActorFuture>::Actor as Actor>::Context
) -> Result<Async<U>, <A as ActorFuture>::Error>
fn map<F, U>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Item, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> U,
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fn map<F, U>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Item, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> U,
Map this future's result to a different type, returning a new future of the resulting type. Read more
fn map_err<F, E>(self, f: F) -> MapErr<Self, F> where
F: FnOnce(Self::Error, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> E,
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fn map_err<F, E>(self, f: F) -> MapErr<Self, F> where
F: FnOnce(Self::Error, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> E,
Map this future's error to a different error, returning a new future.
fn drop_err(self) -> DropErr<Self>
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fn drop_err(self) -> DropErr<Self>
Drop this future's error, returning a new future.
fn from_err<E>(self) -> FromErr<Self, E> where
E: From<Self::Error>,
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fn from_err<E>(self) -> FromErr<Self, E> where
E: From<Self::Error>,
Map this future's error to any error implementing From
for this future's Error
, returning a new future. Read more
fn then<F, B>(self, f: F) -> Then<Self, B, F> where
B: IntoActorFuture<Actor = Self::Actor>,
F: FnOnce(Result<Self::Item, Self::Error>, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> B,
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fn then<F, B>(self, f: F) -> Then<Self, B, F> where
B: IntoActorFuture<Actor = Self::Actor>,
F: FnOnce(Result<Self::Item, Self::Error>, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> B,
Chain on a computation for when a future finished, passing the result of the future to the provided closure f
. Read more
fn and_then<F, B>(self, f: F) -> AndThen<Self, B, F> where
B: IntoActorFuture<Error = Self::Error, Actor = Self::Actor>,
F: FnOnce(Self::Item, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> B,
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fn and_then<F, B>(self, f: F) -> AndThen<Self, B, F> where
B: IntoActorFuture<Error = Self::Error, Actor = Self::Actor>,
F: FnOnce(Self::Item, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> B,
Execute another future after this one has resolved successfully.
fn timeout(self, timeout: Duration, err: Self::Error) -> Timeout<Self>
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fn timeout(self, timeout: Duration, err: Self::Error) -> Timeout<Self>
Add timeout to futures chain. Read more
impl<A, F> Debug for Map<A, F> where
A: Debug + ActorFuture,
F: Debug,
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impl<A, F> Debug for Map<A, F> where
A: Debug + ActorFuture,
F: Debug,