Struct async_std::stream::Filter [−][src]
A stream to filter elements of another stream with a predicate.
This struct is created by the filter method on Stream. See its
documentation for more.
Trait Implementations
impl<S: Debug, P: Debug> Debug for Filter<S, P>[src]
impl<S, P> Stream for Filter<S, P> where
S: Stream,
P: FnMut(&S::Item) -> bool, [src]
S: Stream,
P: FnMut(&S::Item) -> bool,
type Item = S::Item
Values yielded by the stream.
fn poll_next(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>[src]
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>
pub fn size_hint(&self) -> (usize, Option<usize>)[src]
impl<'__pin, S, P> Unpin for Filter<S, P> where
__Origin<'__pin, S, P>: Unpin, [src]
__Origin<'__pin, S, P>: Unpin,
Auto Trait Implementations
impl<S, P> RefUnwindSafe for Filter<S, P> where
P: RefUnwindSafe,
S: RefUnwindSafe,
P: RefUnwindSafe,
S: RefUnwindSafe,
impl<S, P> Send for Filter<S, P> where
P: Send,
S: Send,
P: Send,
S: Send,
impl<S, P> Sync for Filter<S, P> where
P: Sync,
S: Sync,
P: Sync,
S: Sync,
impl<S, P> UnwindSafe for Filter<S, P> where
P: UnwindSafe,
S: UnwindSafe,
P: UnwindSafe,
S: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut Tⓘ[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<S> StreamExt for S where
S: Stream + ?Sized, [src]
S: Stream + ?Sized,
pub fn poll_next(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> where
Self: Unpin, [src]
Self: Unpin,
pub fn next(&mut self) -> NextFuture<'_, Self>ⓘNotable traits for NextFuture<'_, S>
impl<'_, S> Future for NextFuture<'_, S> where
S: Unpin + Stream + ?Sized, type Output = Option<<S as Stream>::Item>; where
Self: Unpin, [src]
Notable traits for NextFuture<'_, S>
impl<'_, S> Future for NextFuture<'_, S> where
S: Unpin + Stream + ?Sized, type Output = Option<<S as Stream>::Item>;Self: Unpin,
pub fn try_next<T, E>(&mut self) -> TryNextFuture<'_, Self>ⓘNotable traits for TryNextFuture<'_, S>
impl<'_, T, E, S> Future for TryNextFuture<'_, S> where
S: Stream<Item = Result<T, E>> + Unpin + ?Sized, type Output = Result<Option<T>, E>; where
Self: Stream<Item = Result<T, E>> + Unpin, [src]
Notable traits for TryNextFuture<'_, S>
impl<'_, T, E, S> Future for TryNextFuture<'_, S> where
S: Stream<Item = Result<T, E>> + Unpin + ?Sized, type Output = Result<Option<T>, E>;Self: Stream<Item = Result<T, E>> + Unpin,
pub fn count(self) -> CountFuture<Self>ⓘNotable traits for CountFuture<S>
impl<S> Future for CountFuture<S> where
S: Stream + ?Sized, type Output = usize;[src]
Notable traits for CountFuture<S>
impl<S> Future for CountFuture<S> where
S: Stream + ?Sized, type Output = usize;pub fn map<T, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> T, [src]
F: FnMut(Self::Item) -> T,
pub fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where
F: FnMut(Self::Item) -> U,
U: Stream, [src]
F: FnMut(Self::Item) -> U,
U: Stream,
pub fn flatten(self) -> Flatten<Self> where
Self::Item: Stream, [src]
Self::Item: Stream,
pub fn then<F, Fut>(self, f: F) -> Then<Self, F, Fut> where
F: FnMut(Self::Item) -> Fut,
Fut: Future, [src]
F: FnMut(Self::Item) -> Fut,
Fut: Future,
pub fn filter<P>(self, predicate: P) -> Filter<Self, P> where
P: FnMut(&Self::Item) -> bool, [src]
P: FnMut(&Self::Item) -> bool,
pub fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<T>, [src]
F: FnMut(Self::Item) -> Option<T>,
pub fn take(self, n: usize) -> Take<Self>[src]
pub fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P> where
P: FnMut(&Self::Item) -> bool, [src]
P: FnMut(&Self::Item) -> bool,
pub fn skip(self, n: usize) -> Skip<Self>[src]
pub fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P> where
P: FnMut(&Self::Item) -> bool, [src]
P: FnMut(&Self::Item) -> bool,
pub fn step_by(self, step: usize) -> StepBy<Self>[src]
pub fn chain<U>(self, other: U) -> Chain<Self, U> where
U: Stream<Item = Self::Item>, [src]
U: Stream<Item = Self::Item>,
pub fn cloned<'a, T>(self) -> Cloned<Self> where
Self: Stream<Item = &'a T>,
T: Clone + 'a, [src]
Self: Stream<Item = &'a T>,
T: Clone + 'a,
pub fn copied<'a, T>(self) -> Copied<Self> where
Self: Stream<Item = &'a T>,
T: Copy + 'a, [src]
Self: Stream<Item = &'a T>,
T: Copy + 'a,
pub fn collect<C>(self) -> CollectFuture<Self, C>ⓘNotable traits for CollectFuture<S, C>
impl<S, C> Future for CollectFuture<S, C> where
C: Default + Extend<<S as Stream>::Item>,
S: Stream, type Output = C; where
C: Default + Extend<Self::Item>, [src]
Notable traits for CollectFuture<S, C>
impl<S, C> Future for CollectFuture<S, C> where
C: Default + Extend<<S as Stream>::Item>,
S: Stream, type Output = C;C: Default + Extend<Self::Item>,
pub fn try_collect<T, E, C>(self) -> TryCollectFuture<Self, C>ⓘNotable traits for TryCollectFuture<S, C>
impl<T, E, S, C> Future for TryCollectFuture<S, C> where
C: Default + Extend<T>,
S: Stream<Item = Result<T, E>>, type Output = Result<C, E>; where
Self: Stream<Item = Result<T, E>>,
C: Default + Extend<T>, [src]
Notable traits for TryCollectFuture<S, C>
impl<T, E, S, C> Future for TryCollectFuture<S, C> where
C: Default + Extend<T>,
S: Stream<Item = Result<T, E>>, type Output = Result<C, E>;Self: Stream<Item = Result<T, E>>,
C: Default + Extend<T>,
pub fn partition<B, P>(self, predicate: P) -> PartitionFuture<Self, P, B>ⓘ where
P: FnMut(&Self::Item) -> bool,
B: Default + Extend<Self::Item>, [src]
P: FnMut(&Self::Item) -> bool,
B: Default + Extend<Self::Item>,
pub fn fold<T, F>(self, init: T, f: F) -> FoldFuture<Self, F, T>ⓘNotable traits for FoldFuture<S, F, T>
impl<S, F, T> Future for FoldFuture<S, F, T> where
F: FnMut(T, <S as Stream>::Item) -> T,
S: Stream, type Output = T; where
F: FnMut(T, Self::Item) -> T, [src]
Notable traits for FoldFuture<S, F, T>
impl<S, F, T> Future for FoldFuture<S, F, T> where
F: FnMut(T, <S as Stream>::Item) -> T,
S: Stream, type Output = T;F: FnMut(T, Self::Item) -> T,
pub fn try_fold<T, E, F, B>(
&mut self,
init: B,
f: F
) -> TryFoldFuture<'_, Self, F, B>ⓘNotable traits for TryFoldFuture<'a, S, F, B>
impl<'a, T, E, S, F, B> Future for TryFoldFuture<'a, S, F, B> where
F: FnMut(B, T) -> Result<B, E>,
S: Stream<Item = Result<T, E>> + Unpin, type Output = Result<B, E>; where
Self: Stream<Item = Result<T, E>> + Unpin,
F: FnMut(B, T) -> Result<B, E>, [src]
&mut self,
init: B,
f: F
) -> TryFoldFuture<'_, Self, F, B>ⓘ
Notable traits for TryFoldFuture<'a, S, F, B>
impl<'a, T, E, S, F, B> Future for TryFoldFuture<'a, S, F, B> where
F: FnMut(B, T) -> Result<B, E>,
S: Stream<Item = Result<T, E>> + Unpin, type Output = Result<B, E>;Self: Stream<Item = Result<T, E>> + Unpin,
F: FnMut(B, T) -> Result<B, E>,
pub fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F> where
F: FnMut(&mut St, Self::Item) -> Option<B>, [src]
F: FnMut(&mut St, Self::Item) -> Option<B>,
pub fn fuse(self) -> Fuse<Self>[src]
pub fn cycle(self) -> Cycle<Self> where
Self: Clone, [src]
Self: Clone,
pub fn enumerate(self) -> Enumerate<Self>[src]
pub fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item), [src]
F: FnMut(&Self::Item),
pub fn nth(&mut self, n: usize) -> NthFuture<'_, Self>ⓘ where
Self: Unpin, [src]
Self: Unpin,
pub fn last(self) -> LastFuture<Self>ⓘNotable traits for LastFuture<S>
impl<S> Future for LastFuture<S> where
S: Stream, type Output = Option<<S as Stream>::Item>;[src]
Notable traits for LastFuture<S>
impl<S> Future for LastFuture<S> where
S: Stream, type Output = Option<<S as Stream>::Item>;pub fn find<P>(&mut self, predicate: P) -> FindFuture<'_, Self, P>ⓘ where
Self: Unpin,
P: FnMut(&Self::Item) -> bool, [src]
Self: Unpin,
P: FnMut(&Self::Item) -> bool,
pub fn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F>ⓘ where
Self: Unpin,
F: FnMut(Self::Item) -> Option<B>, [src]
Self: Unpin,
F: FnMut(Self::Item) -> Option<B>,
pub fn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P>ⓘ where
Self: Unpin,
P: FnMut(Self::Item) -> bool, [src]
Self: Unpin,
P: FnMut(Self::Item) -> bool,
pub fn all<P>(&mut self, predicate: P) -> AllFuture<'_, Self, P>ⓘ where
Self: Unpin,
P: FnMut(Self::Item) -> bool, [src]
Self: Unpin,
P: FnMut(Self::Item) -> bool,
pub fn any<P>(&mut self, predicate: P) -> AnyFuture<'_, Self, P>ⓘ where
Self: Unpin,
P: FnMut(Self::Item) -> bool, [src]
Self: Unpin,
P: FnMut(Self::Item) -> bool,
pub fn for_each<F>(self, f: F) -> ForEachFuture<Self, F>ⓘNotable traits for ForEachFuture<S, F>
impl<S, F> Future for ForEachFuture<S, F> where
F: FnMut(<S as Stream>::Item),
S: Stream, type Output = (); where
F: FnMut(Self::Item), [src]
Notable traits for ForEachFuture<S, F>
impl<S, F> Future for ForEachFuture<S, F> where
F: FnMut(<S as Stream>::Item),
S: Stream, type Output = ();F: FnMut(Self::Item),
pub fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F>ⓘ where
Self: Unpin,
F: FnMut(Self::Item) -> Result<(), E>, [src]
Self: Unpin,
F: FnMut(Self::Item) -> Result<(), E>,
pub fn zip<U>(self, other: U) -> Zip<Self, U> where
U: Stream, [src]
U: Stream,
pub fn unzip<A, B, FromA, FromB>(self) -> UnzipFuture<Self, FromA, FromB>ⓘ where
Self: Stream<Item = (A, B)>,
FromA: Default + Extend<A>,
FromB: Default + Extend<B>, [src]
Self: Stream<Item = (A, B)>,
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
pub fn or<S>(self, other: S) -> Or<Self, S> where
S: Stream<Item = Self::Item>, [src]
S: Stream<Item = Self::Item>,
pub fn race<S>(self, other: S) -> Race<Self, S> where
S: Stream<Item = Self::Item>, [src]
S: Stream<Item = Self::Item>,
pub fn boxed<'a>(
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a + Send, Global>>ⓘ where
Self: Send + 'a, [src]
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a + Send, Global>>ⓘ where
Self: Send + 'a,
pub fn boxed_local<'a>(
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>>ⓘ where
Self: 'a, [src]
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>>ⓘ where
Self: 'a,
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
impl<S, T, E> TryStream for S where
S: Stream<Item = Result<T, E>> + ?Sized, [src]
S: Stream<Item = Result<T, E>> + ?Sized,