[−][src]Struct async_imap::extensions::idle::IdleStream
#[must_use = "futures do nothing unless polled"]pub struct IdleStream<'a, St> { /* fields omitted */ }
A stream of server responses after sending IDLE
. Created using [Handle::stream].
Trait Implementations
impl<'a, St: Debug> Debug for IdleStream<'a, St>
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fn fmt(&self, f: &mut Formatter<'_>) -> Result
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Formats the value using the given formatter. Read more
impl<St: FusedStream + Unpin, '_> FusedStream for IdleStream<'_, St>
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fn is_terminated(&self) -> bool
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Returns true
if the stream should no longer be polled.
impl<St: Stream + Unpin, '_> Stream for IdleStream<'_, St>
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type Item = St::Item
Values yielded by the stream.
fn poll_next(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>
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self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>
Attempt to pull out the next value of this stream, registering the current task for wakeup if the value is not yet available, and returning None
if the stream is exhausted. Read more
fn size_hint(&self) -> (usize, Option<usize>)
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Returns the bounds on the remaining length of the stream. Read more
impl<St: Unpin, '_> Unpin for IdleStream<'_, St>
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Auto Trait Implementations
impl<'a, St> RefUnwindSafe for IdleStream<'a, St> where
St: RefUnwindSafe,
St: RefUnwindSafe,
impl<'a, St> Send for IdleStream<'a, St> where
St: Send,
St: Send,
impl<'a, St> Sync for IdleStream<'a, St> where
St: Sync,
St: Sync,
impl<'a, St> !UnwindSafe for IdleStream<'a, St>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
fn type_id(&self) -> TypeId
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Gets the TypeId
of self
. Read more
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow(&self) -> &T
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Immutably borrows from an owned value. Read more
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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Mutably borrows from an owned value. Read more
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<I> IntoStream for I where
I: Stream,
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I: Stream,
type Item = <I as Stream>::Item
The type of the elements being iterated over.
type IntoStream = I
Which kind of stream are we turning this into?
fn into_stream(self) -> I
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Creates a stream from a value.
impl<T> StreamExt for T where
T: Stream + ?Sized,
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T: Stream + ?Sized,
fn next(&mut self) -> NextFuture<'_, Self> where
Self: Unpin,
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Self: Unpin,
Advances the stream and returns the next value. Read more
fn take(self, n: usize) -> Take<Self>
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Creates a stream that yields its first n
elements. Read more
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,
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P: FnMut(&Self::Item) -> bool,
Creates a stream that yields elements based on a predicate. Read more
fn throttle(self, d: Duration) -> Throttle<Self>
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Limit the amount of items yielded per timeslice in a stream. Read more
fn step_by(self, step: usize) -> StepBy<Self>
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Creates a stream that yields each step
th element. Read more
fn chain<U>(self, other: U) -> Chain<Self, U> where
U: Stream<Item = Self::Item>,
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U: Stream<Item = Self::Item>,
Takes two streams and creates a new stream over both in sequence. Read more
fn cloned<'a, T>(self) -> Cloned<Self> where
Self: Stream<Item = &'a T>,
T: Clone + 'a,
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Self: Stream<Item = &'a T>,
T: Clone + 'a,
Creates an stream which copies all of its elements. Read more
fn copied<'a, T>(self) -> Copied<Self> where
Self: Stream<Item = &'a T>,
T: Copy + 'a,
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Self: Stream<Item = &'a T>,
T: Copy + 'a,
Creates an stream which copies all of its elements. Read more
fn cycle(self) -> Cycle<Self> where
Self: Clone,
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Self: Clone,
Creates a stream that yields the provided values infinitely and in order. Read more
fn enumerate(self) -> Enumerate<Self>
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Creates a stream that gives the current element's count as well as the next value. Read more
fn delay(self, dur: Duration) -> Delay<Self>
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Creates a stream that is delayed before it starts yielding items. Read more
fn map<B, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> B,
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F: FnMut(Self::Item) -> B,
Takes a closure and creates a stream that calls that closure on every element of this stream. Read more
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item),
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F: FnMut(&Self::Item),
A combinator that does something with each element in the stream, passing the value on. Read more
fn last(self) -> LastFuture<Self, Self::Item>
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Returns the last element of the stream. Read more
fn fuse(self) -> Fuse<Self>
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Creates a stream which ends after the first None
. Read more
fn filter<P>(self, predicate: P) -> Filter<Self, P> where
P: FnMut(&Self::Item) -> bool,
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P: FnMut(&Self::Item) -> bool,
Creates a stream that uses a predicate to determine if an element should be yielded. Read more
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where
F: FnMut(Self::Item) -> U,
U: IntoStream,
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F: FnMut(Self::Item) -> U,
U: IntoStream,
Creates an stream that works like map, but flattens nested structure. Read more
fn flatten(self) -> Flatten<Self> where
Self::Item: IntoStream,
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Self::Item: IntoStream,
Creates an stream that flattens nested structure. Read more
fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<B>,
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F: FnMut(Self::Item) -> Option<B>,
Both filters and maps a stream. Read more
fn min_by_key<B, F>(self, key_by: F) -> MinByKeyFuture<Self, Self::Item, F> where
B: Ord,
F: FnMut(&Self::Item) -> B,
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B: Ord,
F: FnMut(&Self::Item) -> B,
Returns the element that gives the minimum value with respect to the specified key function. If several elements are equally minimum, the first element is returned. If the stream is empty, None
is returned. Read more
fn max_by_key<B, F>(self, key_by: F) -> MaxByKeyFuture<Self, Self::Item, F> where
B: Ord,
F: FnMut(&Self::Item) -> B,
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B: Ord,
F: FnMut(&Self::Item) -> B,
Returns the element that gives the maximum value with respect to the specified key function. If several elements are equally maximum, the first element is returned. If the stream is empty, None
is returned. Read more
fn min_by<F>(self, compare: F) -> MinByFuture<Self, F, Self::Item> where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
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F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Returns the element that gives the minimum value with respect to the specified comparison function. If several elements are equally minimum, the first element is returned. If the stream is empty, None
is returned. Read more
fn max(self) -> MaxFuture<Self, Self::Item> where
Self::Item: Ord,
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Self::Item: Ord,
Returns the element that gives the maximum value. If several elements are equally maximum, the first element is returned. If the stream is empty, None
is returned. Read more
fn min(self) -> MinFuture<Self, Self::Item> where
Self::Item: Ord,
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Self::Item: Ord,
Returns the element that gives the minimum value. If several elements are equally minimum, the first element is returned. If the stream is empty, None
is returned. Read more
fn max_by<F>(self, compare: F) -> MaxByFuture<Self, F, Self::Item> where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
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F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Returns the element that gives the maximum value with respect to the specified comparison function. If several elements are equally maximum, the first element is returned. If the stream is empty, None
is returned. Read more
fn nth(&mut self, n: usize) -> NthFuture<'_, Self> where
Self: Unpin,
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Self: Unpin,
Returns the nth element of the stream. Read more
fn all<F>(&mut self, f: F) -> AllFuture<'_, Self, F, Self::Item> where
F: FnMut(Self::Item) -> bool,
Self: Unpin,
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F: FnMut(Self::Item) -> bool,
Self: Unpin,
Tests if every element of the stream matches a predicate. Read more
fn find<P>(&mut self, p: P) -> FindFuture<'_, Self, P> where
P: FnMut(&Self::Item) -> bool,
Self: Unpin,
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P: FnMut(&Self::Item) -> bool,
Self: Unpin,
Searches for an element in a stream that satisfies a predicate. Read more
fn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F> where
F: FnMut(Self::Item) -> Option<B>,
Self: Unpin,
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F: FnMut(Self::Item) -> Option<B>,
Self: Unpin,
Applies function to the elements of stream and returns the first non-none result. Read more
fn fold<B, F>(self, init: B, f: F) -> FoldFuture<Self, F, B> where
F: FnMut(B, Self::Item) -> B,
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F: FnMut(B, Self::Item) -> B,
A combinator that applies a function to every element in a stream producing a single, final value. Read more
fn partition<B, F>(self, f: F) -> PartitionFuture<Self, F, B> where
B: Default + Extend<Self::Item>,
F: FnMut(&Self::Item) -> bool,
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B: Default + Extend<Self::Item>,
F: FnMut(&Self::Item) -> bool,
A combinator that applies a function to every element in a stream creating two collections from it. Read more
fn for_each<F>(self, f: F) -> ForEachFuture<Self, F> where
F: FnMut(Self::Item),
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F: FnMut(Self::Item),
Call a closure on each element of the stream. Read more
fn any<F>(&mut self, f: F) -> AnyFuture<'_, Self, F, Self::Item> where
F: FnMut(Self::Item) -> bool,
Self: Unpin,
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F: FnMut(Self::Item) -> bool,
Self: Unpin,
Tests if any element of the stream matches a predicate. Read more
fn by_ref(&mut self) -> &mut Self
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Borrows an stream, rather than consuming it. Read more
fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F> where
F: FnMut(&mut St, Self::Item) -> Option<B>,
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F: FnMut(&mut St, Self::Item) -> Option<B>,
A stream adaptor similar to [fold
] that holds internal state and produces a new stream. Read more
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,
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P: FnMut(&Self::Item) -> bool,
Combinator that skip
s elements based on a predicate. Read more
fn skip(self, n: usize) -> Skip<Self>
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Creates a combinator that skips the first n
elements. Read more
fn timeout(self, dur: Duration) -> Timeout<Self> where
Self: Stream,
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Self: Stream,
Await a stream or times out after a duration of time. Read more
fn try_fold<B, F, T, E>(
&mut self,
init: T,
f: F
) -> TryFoldFuture<'_, Self, F, T> where
F: FnMut(B, Self::Item) -> Result<T, E>,
Self: Unpin,
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&mut self,
init: T,
f: F
) -> TryFoldFuture<'_, Self, F, T> where
F: FnMut(B, Self::Item) -> Result<T, E>,
Self: Unpin,
A combinator that applies a function as long as it returns successfully, producing a single, final value. Immediately returns the error when the function returns unsuccessfully. Read more
fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F> where
F: FnMut(Self::Item) -> Result<(), E>,
Self: Unpin,
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F: FnMut(Self::Item) -> Result<(), E>,
Self: Unpin,
Applies a falliable function to each element in a stream, stopping at first error and returning it. Read more
fn zip<U>(self, other: U) -> Zip<Self, U> where
U: Stream,
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U: Stream,
'Zips up' two streams into a single stream of pairs. Read more
fn unzip<A, B, FromA, FromB>(self) -> UnzipFuture<Self, FromA, FromB> where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Stream<Item = (A, B)>,
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FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Stream<Item = (A, B)>,
Converts an stream of pairs into a pair of containers. Read more
fn collect<'a, B>(self) -> Pin<Box<dyn Future<Output = B> + 'a + Send>> where
B: FromStream<Self::Item>,
Self: 'a + Send,
Self::Item: Send,
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B: FromStream<Self::Item>,
Self: 'a + Send,
Self::Item: Send,
Transforms a stream into a collection. Read more
fn merge<U>(self, other: U) -> Merge<Self, U> where
U: Stream<Item = Self::Item>,
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U: Stream<Item = Self::Item>,
Combines multiple streams into a single stream of all their outputs. Read more
fn partial_cmp<S>(self, other: S) -> PartialCmpFuture<Self, S> where
S: Stream,
Self: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
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S: Stream,
Self: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
Lexicographically compares the elements of this Stream
with those of another. Read more
fn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P> where
P: FnMut(Self::Item) -> bool,
Self: Unpin,
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P: FnMut(Self::Item) -> bool,
Self: Unpin,
Searches for an element in a Stream that satisfies a predicate, returning its index. Read more
fn cmp<S>(self, other: S) -> CmpFuture<Self, S> where
S: Stream,
Self: Stream,
Self::Item: Ord,
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S: Stream,
Self: Stream,
Self::Item: Ord,
Lexicographically compares the elements of this Stream
with those of another using 'Ord'. Read more
fn count(self) -> CountFuture<Self>
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Counts the number of elements in the stream. Read more
fn ne<S>(self, other: S) -> NeFuture<Self, S> where
S: Stream,
Self::Item: PartialEq<<S as Stream>::Item>,
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S: Stream,
Self::Item: PartialEq<<S as Stream>::Item>,
Determines if the elements of this Stream
are lexicographically not equal to those of another. Read more
fn ge<S>(self, other: S) -> GeFuture<Self, S> where
S: Stream,
Self: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
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S: Stream,
Self: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
Determines if the elements of this Stream
are lexicographically greater than or equal to those of another. Read more
fn eq<S>(self, other: S) -> EqFuture<Self, S> where
S: Stream,
Self: Stream,
Self::Item: PartialEq<<S as Stream>::Item>,
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S: Stream,
Self: Stream,
Self::Item: PartialEq<<S as Stream>::Item>,
Determines if the elements of this Stream
are lexicographically equal to those of another. Read more
fn gt<S>(self, other: S) -> GtFuture<Self, S> where
S: Stream,
Self: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
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S: Stream,
Self: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
Determines if the elements of this Stream
are lexicographically greater than those of another. Read more
fn le<S>(self, other: S) -> LeFuture<Self, S> where
S: Stream,
Self: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
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S: Stream,
Self: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
Determines if the elements of this Stream
are lexicographically less or equal to those of another. Read more
fn lt<S>(self, other: S) -> LtFuture<Self, S> where
S: Stream,
Self: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
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S: Stream,
Self: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
Determines if the elements of this Stream
are lexicographically less than those of another. Read more
fn sum<'a, S>(self) -> Pin<Box<dyn Future<Output = S> + 'a>> where
S: Sum<Self::Item>,
Self: Stream<Item = S> + 'a,
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S: Sum<Self::Item>,
Self: Stream<Item = S> + 'a,
Sums the elements of a stream. Read more
fn product<'a, P>(self) -> Pin<Box<dyn Future<Output = P> + 'a>> where
P: Product<P>,
Self: Stream<Item = P> + 'a,
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P: Product<P>,
Self: Stream<Item = P> + 'a,
Multiplies all elements of the stream. Read more
impl<S> StreamExt for S where
S: Stream + ?Sized,
[+]
S: Stream + ?Sized,
fn next(&mut self) -> NextFuture<'_, Self> where
Self: Unpin,
[−]
Self: Unpin,
Retrieves the next item in the stream. Read more
fn count(self) -> CountFuture<Self>
[−]
Counts the number of elements in the stream. Read more
fn map<T, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> T,
[−]
F: FnMut(Self::Item) -> T,
Maps items of the stream to new values using a closure. Read more
fn filter<P>(self, predicate: P) -> Filter<Self, P> where
P: FnMut(&Self::Item) -> bool,
[−]
P: FnMut(&Self::Item) -> bool,
Keeps items of the stream for which predicate
returns true
. Read more
fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<T>,
[−]
F: FnMut(Self::Item) -> Option<T>,
Filters and maps items of the stream using a closure. Read more
fn collect<C>(self) -> CollectFuture<Self, C> where
C: Default + Extend<Self::Item>,
[−]
C: Default + Extend<Self::Item>,
Collects all items in the stream into a collection. Read more
fn try_collect<T, C>(self) -> TryCollectFuture<Self, C> where
C: Default + Extend<T>,
Self::Item: Result,
<Self::Item as Result>::Ok == T,
[−]
C: Default + Extend<T>,
Self::Item: Result,
<Self::Item as Result>::Ok == T,
Collects all items in the fallible stream into a collection. Read more
fn fold<T, F>(self, init: T, f: F) -> FoldFuture<Self, F, T> where
F: FnMut(T, Self::Item) -> T,
[−]
F: FnMut(T, Self::Item) -> T,
Accumulates a computation over the stream. Read more
fn try_fold<T, E, F, B>(
&mut self,
init: B,
f: F
) -> TryFoldFuture<'_, Self, F, B> where
F: FnMut(B, T) -> Result<B, E>,
Self: Unpin,
Self::Item: Result,
<Self::Item as Result>::Ok == T,
<Self::Item as Result>::Err == E,
[−]
&mut self,
init: B,
f: F
) -> TryFoldFuture<'_, Self, F, B> where
F: FnMut(B, T) -> Result<B, E>,
Self: Unpin,
Self::Item: Result,
<Self::Item as Result>::Ok == T,
<Self::Item as Result>::Err == E,
Accumulates a fallible computation over the stream. Read more
fn boxed(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'static + Send>> where
Self: Send + 'static,
[−]
Self: Send + 'static,
Boxes the stream and changes its type to dyn Stream<Item = T> + Send
. Read more
fn boxed_local(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'static>> where
Self: 'static,
[−]
Self: 'static,
Boxes the stream and changes its type to dyn Stream<Item = T>
. Read more
impl<T> StreamExt for T where
T: Stream + ?Sized,
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T: Stream + ?Sized,
fn next(&mut self) -> Next<'_, Self> where
Self: Unpin,
[src][−]
Self: Unpin,
Creates a future that resolves to the next item in the stream. Read more
fn into_future(self) -> StreamFuture<Self> where
Self: Unpin,
[src][−]
Self: Unpin,
Converts this stream into a future of (next_item, tail_of_stream)
. If the stream terminates, then the next item is [None
]. Read more
fn map<T, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> T,
[src][−]
F: FnMut(Self::Item) -> T,
Maps this stream's items to a different type, returning a new stream of the resulting type. Read more
fn enumerate(self) -> Enumerate<Self>
[src][−]
Creates a stream which gives the current iteration count as well as the next value. Read more
fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
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F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
Filters the values produced by this stream according to the provided asynchronous predicate. Read more
fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = Option<T>>,
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F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = Option<T>>,
Filters the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future,
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F: FnMut(Self::Item) -> Fut,
Fut: Future,
Computes from this stream's items new items of a different type using an asynchronous closure. Read more
fn collect<C>(self) -> Collect<Self, C> where
C: Default + Extend<Self::Item>,
[src][−]
C: Default + Extend<Self::Item>,
Transforms a stream into a collection, returning a future representing the result of that computation. Read more
fn concat(self) -> Concat<Self> where
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,
[src][−]
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,
Concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more
fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F> where
F: FnMut(T, Self::Item) -> Fut,
Fut: Future<Output = T>,
[src][−]
F: FnMut(T, Self::Item) -> Fut,
Fut: Future<Output = T>,
Execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more
fn flatten(self) -> Flatten<Self> where
Self::Item: Stream,
[src][−]
Self::Item: Stream,
Flattens a stream of streams into just one continuous stream. Read more
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,
Maps a stream like [StreamExt::map
] but flattens nested Stream
s. Read more
fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F> where
F: FnMut(&mut S, Self::Item) -> Fut,
Fut: Future<Output = Option<B>>,
[src][−]
F: FnMut(&mut S, Self::Item) -> Fut,
Fut: Future<Output = Option<B>>,
Combinator similar to [StreamExt::fold
] that holds internal state and produces a new stream. Read more
fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
[src][−]
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
Skip elements on this stream while the provided asynchronous predicate resolves to true
. Read more
fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
[src][−]
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
Take elements from this stream while the provided asynchronous predicate resolves to true
. Read more
fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut> where
Fut: Future,
[src][−]
Fut: Future,
Take elements from this stream until the provided future resolves. Read more
fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,
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F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,
Runs this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more
fn for_each_concurrent<Fut, F>(
self,
limit: impl Into<Option<usize>>,
f: F
) -> ForEachConcurrent<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,
[src][−]
self,
limit: impl Into<Option<usize>>,
f: F
) -> ForEachConcurrent<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,
Runs this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available. Read more
fn take(self, n: usize) -> Take<Self>
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Creates a new stream of at most n
items of the underlying stream. Read more
fn skip(self, n: usize) -> Skip<Self>
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Creates a new stream which skips n
items of the underlying stream. Read more
fn fuse(self) -> Fuse<Self>
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Fuse a stream such that poll_next
will never again be called once it has finished. This method can be used to turn any Stream
into a FusedStream
. Read more
fn by_ref(&mut self) -> &mut Self
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Borrows a stream, rather than consuming it. Read more
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
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Self: UnwindSafe,
Catches unwinding panics while polling the stream. Read more
fn boxed<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a + Send>> where
Self: Send + 'a,
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Self: Send + 'a,
Wrap the stream in a Box, pinning it. Read more
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a>> where
Self: 'a,
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Self: 'a,
Wrap the stream in a Box, pinning it. Read more
fn buffered(self, n: usize) -> Buffered<Self> where
Self::Item: Future,
[src][−]
Self::Item: Future,
An adaptor for creating a buffered list of pending futures. Read more
fn buffer_unordered(self, n: usize) -> BufferUnordered<Self> where
Self::Item: Future,
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Self::Item: Future,
An adaptor for creating a buffered list of pending futures (unordered). Read more
fn zip<St>(self, other: St) -> Zip<Self, St> where
St: Stream,
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St: Stream,
An adapter for zipping two streams together. Read more
fn chain<St>(self, other: St) -> Chain<Self, St> where
St: Stream<Item = Self::Item>,
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St: Stream<Item = Self::Item>,
Adapter for chaining two streams. Read more
fn peekable(self) -> Peekable<Self>
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Creates a new stream which exposes a peek
method. Read more
fn chunks(self, capacity: usize) -> Chunks<Self>
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An adaptor for chunking up items of the stream inside a vector. Read more
fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>
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An adaptor for chunking up ready items of the stream inside a vector. Read more
fn forward<S>(self, sink: S) -> Forward<Self, S> where
S: Sink<Self::Ok, Error = Self::Error>,
Self: TryStream,
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S: Sink<Self::Ok, Error = Self::Error>,
Self: TryStream,
A future that completes after the given stream has been fully processed into the sink and the sink has been flushed and closed. Read more
fn split<Item>(self) -> (SplitSink<Self, Item>, SplitStream<Self>) where
Self: Sink<Item>,
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Self: Sink<Item>,
Splits this Stream + Sink
object into separate Sink
and Stream
objects. Read more
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item),
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F: FnMut(&Self::Item),
Do something with each item of this stream, afterwards passing it on. Read more
fn left_stream<B>(self) -> Either<Self, B> where
B: Stream<Item = Self::Item>,
[src][−]
B: Stream<Item = Self::Item>,
Wrap this stream in an Either
stream, making it the left-hand variant of that Either
. Read more
fn right_stream<B>(self) -> Either<B, Self> where
B: Stream<Item = Self::Item>,
[src][−]
B: Stream<Item = Self::Item>,
Wrap this stream in an Either
stream, making it the right-hand variant of that Either
. Read more
fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> where
Self: Unpin,
[src][−]
Self: Unpin,
A convenience method for calling [Stream::poll_next
] on [Unpin
] stream types. Read more
fn select_next_some(&mut self) -> SelectNextSome<'_, Self> where
Self: Unpin + FusedStream,
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Self: Unpin + FusedStream,
Returns a [Future
] that resolves when the next item in this stream is ready. Read more
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
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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Performs the conversion.
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
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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Performs the conversion.
impl<S, T, E> TryStream for S where
S: Stream<Item = Result<T, E>> + ?Sized,
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S: Stream<Item = Result<T, E>> + ?Sized,
type Ok = T
The type of successful values yielded by this future
type Error = E
The type of failures yielded by this future
fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>
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self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>
Poll this TryStream
as if it were a Stream
. Read more
impl<S> TryStreamExt for S where
S: TryStream + ?Sized,
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S: TryStream + ?Sized,
fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>,
[src][−]
Self::Error: Into<E>,
Wraps the current stream in a new stream which converts the error type into the one provided. Read more
fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnMut(Self::Ok) -> T,
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F: FnMut(Self::Ok) -> T,
Wraps the current stream in a new stream which maps the success value using the provided closure. Read more
fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnMut(Self::Error) -> E,
[src][−]
F: FnMut(Self::Error) -> E,
Wraps the current stream in a new stream which maps the error value using the provided closure. Read more
fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
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F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
Chain on a computation for when a value is ready, passing the successful results to the provided closure f
. Read more
fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
F: FnMut(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
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F: FnMut(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
Chain on a computation for when an error happens, passing the erroneous result to the provided closure f
. Read more
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnMut(&Self::Ok),
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F: FnMut(&Self::Ok),
Do something with the success value of this stream, afterwards passing it on. Read more
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnMut(&Self::Error),
[src][−]
F: FnMut(&Self::Error),
Do something with the error value of this stream, afterwards passing it on. Read more
fn into_stream(self) -> IntoStream<Self>
[src][−]
Wraps a [TryStream
] into a type that implements Stream
Read more
fn try_next(&mut self) -> TryNext<'_, Self> where
Self: Unpin,
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Self: Unpin,
Creates a future that attempts to resolve the next item in the stream. If an error is encountered before the next item, the error is returned instead. Read more
fn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = (), Error = Self::Error>,
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F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = (), Error = Self::Error>,
Attempts to run this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more
fn try_skip_while<Fut, F>(self, f: F) -> TrySkipWhile<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,
[src][−]
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,
Skip elements on this stream while the provided asynchronous predicate resolves to true
. Read more
fn try_for_each_concurrent<Fut, F>(
self,
limit: impl Into<Option<usize>>,
f: F
) -> TryForEachConcurrent<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: Future<Output = Result<(), Self::Error>>,
[src][−]
self,
limit: impl Into<Option<usize>>,
f: F
) -> TryForEachConcurrent<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: Future<Output = Result<(), Self::Error>>,
Attempts to run this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available, exiting as soon as an error occurs. Read more
fn try_collect<C>(self) -> TryCollect<Self, C> where
C: Default + Extend<Self::Ok>,
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C: Default + Extend<Self::Ok>,
Attempt to transform a stream into a collection, returning a future representing the result of that computation. Read more
fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: Future<Output = bool>,
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F: FnMut(&Self::Ok) -> Fut,
Fut: Future<Output = bool>,
Attempt to filter the values produced by this stream according to the provided asynchronous closure. Read more
fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = Option<T>, Error = Self::Error>,
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F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = Option<T>, Error = Self::Error>,
Attempt to filter the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more
fn try_flatten(self) -> TryFlatten<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error: From<Self::Error>,
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Self::Ok: TryStream,
<Self::Ok as TryStream>::Error: From<Self::Error>,
Flattens a stream of streams into just one continuous stream. Read more
fn try_fold<T, Fut, F>(self, init: T, f: F) -> TryFold<Self, Fut, T, F> where
F: FnMut(T, Self::Ok) -> Fut,
Fut: TryFuture<Ok = T, Error = Self::Error>,
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F: FnMut(T, Self::Ok) -> Fut,
Fut: TryFuture<Ok = T, Error = Self::Error>,
Attempt to execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more
fn try_concat(self) -> TryConcat<Self> where
Self::Ok: Extend<<Self::Ok as IntoIterator>::Item>,
Self::Ok: IntoIterator,
Self::Ok: Default,
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Self::Ok: Extend<<Self::Ok as IntoIterator>::Item>,
Self::Ok: IntoIterator,
Self::Ok: Default,
Attempt to concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more
fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
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Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
Attempt to execute several futures from a stream concurrently. Read more
fn try_poll_next_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Option<Result<Self::Ok, Self::Error>>> where
Self: Unpin,
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&mut self,
cx: &mut Context<'_>
) -> Poll<Option<Result<Self::Ok, Self::Error>>> where
Self: Unpin,
A convenience method for calling [TryStream::try_poll_next
] on [Unpin
] stream types. Read more
fn into_async_read(self) -> IntoAsyncRead<Self> where
Self: TryStreamExt<Error = Error> + Unpin,
Self::Ok: AsRef<[u8]>,
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Self: TryStreamExt<Error = Error> + Unpin,
Self::Ok: AsRef<[u8]>,
Adapter that converts this stream into an AsyncRead
. Read more