[−]Struct actix_web::actix::fut::StreamThen
A stream combinator which chains a computation onto each item produced by a stream.
This structure is produced by the ActorStream::then
method.
Trait Implementations
impl<S, F, U> Debug for StreamThen<S, F, U> where
F: Debug,
S: Debug,
U: Debug + IntoActorFuture,
<U as IntoActorFuture>::Future: Debug,
impl<S, F, U> Debug for StreamThen<S, F, U> where
F: Debug,
S: Debug,
U: Debug + IntoActorFuture,
<U as IntoActorFuture>::Future: Debug,
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
Formats the value using the given formatter. Read more
impl<S, F, U> ActorStream for StreamThen<S, F, U> where
F: FnMut(Result<<S as ActorStream>::Item, <S as ActorStream>::Error>, &mut <S as ActorStream>::Actor, &mut <<S as ActorStream>::Actor as Actor>::Context) -> U,
S: ActorStream,
U: IntoActorFuture<Actor = <S as ActorStream>::Actor>,
impl<S, F, U> ActorStream for StreamThen<S, F, U> where
F: FnMut(Result<<S as ActorStream>::Item, <S as ActorStream>::Error>, &mut <S as ActorStream>::Actor, &mut <<S as ActorStream>::Actor as Actor>::Context) -> U,
S: ActorStream,
U: IntoActorFuture<Actor = <S as ActorStream>::Actor>,
type Item = <U as IntoActorFuture>::Item
The type of item this stream will yield on success.
type Error = <U as IntoActorFuture>::Error
The type of error this stream may generate.
type Actor = <S as ActorStream>::Actor
The actor within which this stream runs.
fn poll(
&mut self,
act: &mut <S as ActorStream>::Actor,
ctx: &mut <<S as ActorStream>::Actor as Actor>::Context
) -> Result<Async<Option<<U as IntoActorFuture>::Item>>, <U as IntoActorFuture>::Error>
fn poll(
&mut self,
act: &mut <S as ActorStream>::Actor,
ctx: &mut <<S as ActorStream>::Actor as Actor>::Context
) -> Result<Async<Option<<U as IntoActorFuture>::Item>>, <U as IntoActorFuture>::Error>
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,
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,
Converts a stream of type T
to a stream of type U
.
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,
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,
Converts a stream of error type T
to a stream of error type E
.
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>,
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>,
Chain on a computation for when a value is ready, passing the resulting item to the provided closure f
. Read more
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>,
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>,
Chain on a computation for when a value is ready, passing the successful results to the provided closure f
. Read more
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 as IntoActorFuture>::Error>,
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 as IntoActorFuture>::Error>,
Execute an accumulating computation over a stream, collecting all the values into one final result. Read more
fn timeout(self, timeout: Duration, err: Self::Error) -> StreamTimeout<Self> where
Self::Error: Clone,
fn timeout(self, timeout: Duration, err: Self::Error) -> StreamTimeout<Self> where
Self::Error: Clone,
Add timeout to stream. Read more
fn finish(self) -> StreamFinish<Self>
fn finish(self) -> StreamFinish<Self>
Converts a stream to a future that resolves when stream finishes.
Auto Trait Implementations
impl<S, F, U> Send for StreamThen<S, F, U> where
F: Send,
S: Send,
<U as IntoActorFuture>::Future: Send,
impl<S, F, U> Send for StreamThen<S, F, U> where
F: Send,
S: Send,
<U as IntoActorFuture>::Future: Send,
impl<S, F, U> Sync for StreamThen<S, F, U> where
F: Sync,
S: Sync,
<U as IntoActorFuture>::Future: Sync,
impl<S, F, U> Sync for StreamThen<S, F, U> where
F: Sync,
S: Sync,
<U as IntoActorFuture>::Future: Sync,
Blanket Implementations
impl<T> From for T
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impl<T> From for T
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T, U> TryFrom for T where
T: From<U>,
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impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
try_from
)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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impl<T> BorrowMut for T where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>,
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impl<T, U> TryInto for T where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
try_from
)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
try_from
)Performs the conversion.
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId
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fn get_type_id(&self) -> TypeId
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
Gets the TypeId
of self
. Read more
impl<T> Erased for T
impl<T> Erased for T