pub struct TryStreamWithId;Expand description
Yield stream’s items annotated with stream Id (stopping after first error).
Enables Task implementation on any type that implements TryStream.
The stream will be polled for items until it is exhausted or yields an error.
Selector will yield all items and the first error,
attaching stream’s task Id to each.
After that, the Selector will silently drop the stream.
let (tx_1, rx_1) = mpsc::unbounded::<Result<i32, &'static str>>();
let (tx_2, rx_2) = mpsc::unbounded::<Result<i32, &'static str>>();
let mut selector = Selector::<_, TryStreamWithId>::default();
let id_1 = selector.push(rx_1).id().clone();
let id_2 = selector.push(rx_2).id().clone();
tx_1.unbounded_send(Err("error")).unwrap();
assert_eq!(
selector.next().await.unwrap(),
(id_1, Err("error")),
);
tx_2.unbounded_send(Ok(1)).unwrap();
assert_eq!(
selector.next().await.unwrap(),
(id_2, Ok(1)),
);
drop(tx_2);
assert!(selector.next().await.is_none());
assert!(selector.is_empty());Trait Implementations§
Source§impl Clone for TryStreamWithId
impl Clone for TryStreamWithId
Source§fn clone(&self) -> TryStreamWithId
fn clone(&self) -> TryStreamWithId
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreimpl Copy for TryStreamWithId
Source§impl Debug for TryStreamWithId
impl Debug for TryStreamWithId
Source§impl Default for TryStreamWithId
impl Default for TryStreamWithId
Source§fn default() -> TryStreamWithId
fn default() -> TryStreamWithId
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl Freeze for TryStreamWithId
impl RefUnwindSafe for TryStreamWithId
impl Send for TryStreamWithId
impl Sync for TryStreamWithId
impl Unpin for TryStreamWithId
impl UnsafeUnpin for TryStreamWithId
impl UnwindSafe for TryStreamWithId
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<S, T> Task<&mut S> for T
impl<S, T> Task<&mut S> for T
Source§type Cont = <T as Task<S>>::Cont
type Cont = <T as Task<S>>::Cont
Type returned from
Self::poll_progress
when the task produces some value, but has not finished yet.Source§type Break = <T as Task<S>>::Break
type Break = <T as Task<S>>::Break
Type returned from
Self::poll_progress
when the task produces its last value.Source§type Output = <T as Task<S>>::Output
type Output = <T as Task<S>>::Output
Final value type, produced from
Self::Cont/Self::Break
in Self::transform_cont/Self::transform_break.Source§fn poll_progress(
self: Pin<&mut T>,
strategy: &mut &mut S,
cx: &mut Context<'_>,
) -> Poll<ControlFlow<<T as Task<&mut S>>::Break, <T as Task<&mut S>>::Cont>>
fn poll_progress( self: Pin<&mut T>, strategy: &mut &mut S, cx: &mut Context<'_>, ) -> Poll<ControlFlow<<T as Task<&mut S>>::Break, <T as Task<&mut S>>::Cont>>
Polls progress on this task using the given strategy. Read more
Source§fn transform_cont(
task: BorrowedMut<'_, T>,
strategy: &mut &mut S,
value: <T as Task<&mut S>>::Cont,
) -> Option<<T as Task<&mut S>>::Output>
fn transform_cont( task: BorrowedMut<'_, T>, strategy: &mut &mut S, value: <T as Task<&mut S>>::Cont, ) -> Option<<T as Task<&mut S>>::Output>
Transforms
Self::Cont value obtained from Self::poll_progress
into the final value type Self::Output. Read moreSource§fn transform_break(
task: Removed<T>,
strategy: &mut &mut S,
value: <T as Task<&mut S>>::Break,
) -> Option<<T as Task<&mut S>>::Output>
fn transform_break( task: Removed<T>, strategy: &mut &mut S, value: <T as Task<&mut S>>::Break, ) -> Option<<T as Task<&mut S>>::Output>
Transforms
Self::Break value obtained from Self::poll_progress
into the final value type Self::Output. Read moreSource§impl<S, T> Task<Box<S>> for T
impl<S, T> Task<Box<S>> for T
Source§type Cont = <T as Task<S>>::Cont
type Cont = <T as Task<S>>::Cont
Type returned from
Self::poll_progress
when the task produces some value, but has not finished yet.Source§type Break = <T as Task<S>>::Break
type Break = <T as Task<S>>::Break
Type returned from
Self::poll_progress
when the task produces its last value.Source§type Output = <T as Task<S>>::Output
type Output = <T as Task<S>>::Output
Final value type, produced from
Self::Cont/Self::Break
in Self::transform_cont/Self::transform_break.Source§fn poll_progress(
self: Pin<&mut T>,
strategy: &mut Box<S>,
cx: &mut Context<'_>,
) -> Poll<ControlFlow<<T as Task<Box<S>>>::Break, <T as Task<Box<S>>>::Cont>>
fn poll_progress( self: Pin<&mut T>, strategy: &mut Box<S>, cx: &mut Context<'_>, ) -> Poll<ControlFlow<<T as Task<Box<S>>>::Break, <T as Task<Box<S>>>::Cont>>
Polls progress on this task using the given strategy. Read more
Source§fn transform_cont(
task: BorrowedMut<'_, T>,
strategy: &mut Box<S>,
value: <T as Task<Box<S>>>::Cont,
) -> Option<<T as Task<Box<S>>>::Output>
fn transform_cont( task: BorrowedMut<'_, T>, strategy: &mut Box<S>, value: <T as Task<Box<S>>>::Cont, ) -> Option<<T as Task<Box<S>>>::Output>
Transforms
Self::Cont value obtained from Self::poll_progress
into the final value type Self::Output. Read moreSource§fn transform_break(
task: Removed<T>,
strategy: &mut Box<S>,
value: <T as Task<Box<S>>>::Break,
) -> Option<<T as Task<Box<S>>>::Output>
fn transform_break( task: Removed<T>, strategy: &mut Box<S>, value: <T as Task<Box<S>>>::Break, ) -> Option<<T as Task<Box<S>>>::Output>
Transforms
Self::Break value obtained from Self::poll_progress
into the final value type Self::Output. Read moreSource§impl<S> Task<TryStreamWithId> for Swhere
S: TryStream,
impl<S> Task<TryStreamWithId> for Swhere
S: TryStream,
Source§type Cont = <S as TryStream>::Ok
type Cont = <S as TryStream>::Ok
Type returned from
Self::poll_progress
when the task produces some value, but has not finished yet.Source§type Break = Result<(), <S as TryStream>::Error>
type Break = Result<(), <S as TryStream>::Error>
Type returned from
Self::poll_progress
when the task produces its last value.Source§type Output = (Id<S>, Result<<S as TryStream>::Ok, <S as TryStream>::Error>)
type Output = (Id<S>, Result<<S as TryStream>::Ok, <S as TryStream>::Error>)
Final value type, produced from
Self::Cont/Self::Break
in Self::transform_cont/Self::transform_break.Source§fn poll_progress(
self: Pin<&mut S>,
_: &mut TryStreamWithId,
cx: &mut Context<'_>,
) -> Poll<ControlFlow<<S as Task<TryStreamWithId>>::Break, <S as Task<TryStreamWithId>>::Cont>>
fn poll_progress( self: Pin<&mut S>, _: &mut TryStreamWithId, cx: &mut Context<'_>, ) -> Poll<ControlFlow<<S as Task<TryStreamWithId>>::Break, <S as Task<TryStreamWithId>>::Cont>>
Polls progress on this task using the given strategy. Read more
Source§fn transform_cont(
task: BorrowedMut<'_, S>,
_: &mut TryStreamWithId,
value: <S as Task<TryStreamWithId>>::Cont,
) -> Option<<S as Task<TryStreamWithId>>::Output>
fn transform_cont( task: BorrowedMut<'_, S>, _: &mut TryStreamWithId, value: <S as Task<TryStreamWithId>>::Cont, ) -> Option<<S as Task<TryStreamWithId>>::Output>
Transforms
Self::Cont value obtained from Self::poll_progress
into the final value type Self::Output. Read moreSource§fn transform_break(
task: Removed<S>,
_: &mut TryStreamWithId,
value: <S as Task<TryStreamWithId>>::Break,
) -> Option<<S as Task<TryStreamWithId>>::Output>
fn transform_break( task: Removed<S>, _: &mut TryStreamWithId, value: <S as Task<TryStreamWithId>>::Break, ) -> Option<<S as Task<TryStreamWithId>>::Output>
Transforms
Self::Break value obtained from Self::poll_progress
into the final value type Self::Output. Read more