pub struct TryStreamBasic;Expand description
Yield stream’s items (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.
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 = [rx_1, rx_2].into_iter().collect::<Selector::<_, TryStreamBasic>>();
tx_1.unbounded_send(Err("error")).unwrap();
assert_eq!(
selector.next().await.unwrap(),
Err("error"),
);
tx_2.unbounded_send(Ok(1)).unwrap();
assert_eq!(
selector.next().await.unwrap(),
Ok(1),
);
drop(tx_2);
assert!(selector.next().await.is_none());
assert!(selector.is_empty());Trait Implementations§
Source§impl Clone for TryStreamBasic
impl Clone for TryStreamBasic
Source§fn clone(&self) -> TryStreamBasic
fn clone(&self) -> TryStreamBasic
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 TryStreamBasic
Source§impl Debug for TryStreamBasic
impl Debug for TryStreamBasic
Source§impl Default for TryStreamBasic
impl Default for TryStreamBasic
Source§fn default() -> TryStreamBasic
fn default() -> TryStreamBasic
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl Freeze for TryStreamBasic
impl RefUnwindSafe for TryStreamBasic
impl Send for TryStreamBasic
impl Sync for TryStreamBasic
impl Unpin for TryStreamBasic
impl UnsafeUnpin for TryStreamBasic
impl UnwindSafe for TryStreamBasic
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<TryStreamBasic> for Swhere
S: TryStream,
impl<S> Task<TryStreamBasic> 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 = Result<<S as TryStream>::Ok, <S as TryStream>::Error>
type Output = 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 TryStreamBasic,
cx: &mut Context<'_>,
) -> Poll<ControlFlow<<S as Task<TryStreamBasic>>::Break, <S as Task<TryStreamBasic>>::Cont>>
fn poll_progress( self: Pin<&mut S>, _: &mut TryStreamBasic, cx: &mut Context<'_>, ) -> Poll<ControlFlow<<S as Task<TryStreamBasic>>::Break, <S as Task<TryStreamBasic>>::Cont>>
Polls progress on this task using the given strategy. Read more
Source§fn transform_cont(
_: BorrowedMut<'_, S>,
_: &mut TryStreamBasic,
value: <S as Task<TryStreamBasic>>::Cont,
) -> Option<<S as Task<TryStreamBasic>>::Output>
fn transform_cont( _: BorrowedMut<'_, S>, _: &mut TryStreamBasic, value: <S as Task<TryStreamBasic>>::Cont, ) -> Option<<S as Task<TryStreamBasic>>::Output>
Transforms
Self::Cont value obtained from Self::poll_progress
into the final value type Self::Output. Read moreSource§fn transform_break(
_: Removed<S>,
_: &mut TryStreamBasic,
value: <S as Task<TryStreamBasic>>::Break,
) -> Option<<S as Task<TryStreamBasic>>::Output>
fn transform_break( _: Removed<S>, _: &mut TryStreamBasic, value: <S as Task<TryStreamBasic>>::Break, ) -> Option<<S as Task<TryStreamBasic>>::Output>
Transforms
Self::Break value obtained from Self::poll_progress
into the final value type Self::Output. Read more