Struct actix::fut::StreamMapErr
source · pub struct StreamMapErr<S, F> { /* private fields */ }
Expand description
A stream combinator which will change the error type of a stream from one type to another.
This is produced by the ActorStream::map_err
method.
Trait Implementations§
source§impl<S, F, U> ActorStream for StreamMapErr<S, F>where
S: ActorStream,
F: FnMut(S::Error, &mut S::Actor, &mut <S::Actor as Actor>::Context) -> U,
impl<S, F, U> ActorStream for StreamMapErr<S, F>where
S: ActorStream,
F: FnMut(S::Error, &mut S::Actor, &mut <S::Actor as Actor>::Context) -> U,
§type Item = <S as ActorStream>::Item
type Item = <S as ActorStream>::Item
The type of item this stream will yield on success.
§type Actor = <S as ActorStream>::Actor
type Actor = <S as ActorStream>::Actor
The actor within which this stream runs.
fn poll(
&mut self,
act: &mut Self::Actor,
ctx: &mut <S::Actor as Actor>::Context
) -> Poll<Option<S::Item>, U>
source§fn map<U, F>(self, f: F) -> StreamMap<Self, F>where
F: FnMut(Self::Item, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> U,
Self: Sized,
fn map<U, F>(self, f: F) -> StreamMap<Self, F>where
F: FnMut(Self::Item, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> U,
Self: Sized,
Converts a stream of type
T
to a stream of type U
.source§fn map_err<E, F>(self, f: F) -> StreamMapErr<Self, F>where
F: FnMut(Self::Error, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> E,
Self: Sized,
fn map_err<E, F>(self, f: F) -> StreamMapErr<Self, F>where
F: FnMut(Self::Error, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> E,
Self: Sized,
Converts a stream of error type
T
to a stream of error type E
.source§fn then<F, U>(self, f: F) -> StreamThen<Self, F, U>where
F: FnMut(Result<Self::Item, Self::Error>, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> U,
U: IntoActorFuture<Actor = Self::Actor>,
Self: Sized,
fn then<F, U>(self, f: F) -> StreamThen<Self, F, U>where
F: FnMut(Result<Self::Item, Self::Error>, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> U,
U: IntoActorFuture<Actor = Self::Actor>,
Self: Sized,
Chain on a computation for when a value is ready, passing the resulting
item to the provided closure
f
. Read moresource§fn and_then<F, U>(self, f: F) -> StreamAndThen<Self, F, U>where
F: FnMut(Self::Item, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> U,
U: IntoActorFuture<Error = Self::Error, Actor = Self::Actor>,
Self: Sized,
fn and_then<F, U>(self, f: F) -> StreamAndThen<Self, F, U>where
F: FnMut(Self::Item, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> U,
U: IntoActorFuture<Error = Self::Error, Actor = Self::Actor>,
Self: Sized,
Chain on a computation for when a value is ready, passing the successful
results to the provided closure
f
. Read moresource§fn fold<F, T, Fut>(self, init: T, f: F) -> StreamFold<Self, F, Fut, T>where
F: FnMut(T, Self::Item, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> Fut,
Fut: IntoActorFuture<Actor = Self::Actor, Item = T>,
Self::Error: From<Fut::Error>,
Self: Sized,
fn fold<F, T, Fut>(self, init: T, f: F) -> StreamFold<Self, F, Fut, T>where
F: FnMut(T, Self::Item, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> Fut,
Fut: IntoActorFuture<Actor = Self::Actor, Item = T>,
Self::Error: From<Fut::Error>,
Self: Sized,
Execute an accumulating computation over a stream, collecting all the
values into one final result. Read more
source§fn finish(self) -> StreamFinish<Self>where
Self: Sized,
fn finish(self) -> StreamFinish<Self>where
Self: Sized,
Converts a stream to a future that resolves when stream finishes.