pub struct QueryStream { /* private fields */ }
Expand description
The self-referencing struct.
Trait Implementationsยง
Sourceยงimpl Debug for QueryStream
impl Debug for QueryStream
Sourceยงimpl Drop for QueryStream
impl Drop for QueryStream
Sourceยงimpl From<(PoolConnection<MySql>, Statement, Option<Arc<dyn Fn(&Info<'_>) + Sync + Send>>)> for QueryStream
impl From<(PoolConnection<MySql>, Statement, Option<Arc<dyn Fn(&Info<'_>) + Sync + Send>>)> for QueryStream
Sourceยงimpl From<(PoolConnection<Postgres>, Statement, Option<Arc<dyn Fn(&Info<'_>) + Sync + Send>>)> for QueryStream
impl From<(PoolConnection<Postgres>, Statement, Option<Arc<dyn Fn(&Info<'_>) + Sync + Send>>)> for QueryStream
Sourceยงimpl From<(PoolConnection<Sqlite>, Statement, Option<Arc<dyn Fn(&Info<'_>) + Sync + Send>>)> for QueryStream
impl From<(PoolConnection<Sqlite>, Statement, Option<Arc<dyn Fn(&Info<'_>) + Sync + Send>>)> for QueryStream
Sourceยงimpl From<(Arc<MockDatabaseConnection>, Statement, Option<Arc<dyn Fn(&Info<'_>) + Sync + Send>>)> for QueryStream
impl From<(Arc<MockDatabaseConnection>, Statement, Option<Arc<dyn Fn(&Info<'_>) + Sync + Send>>)> for QueryStream
Sourceยงimpl From<(Arc<ProxyDatabaseConnection>, Statement, Option<Arc<dyn Fn(&Info<'_>) + Sync + Send>>)> for QueryStream
impl From<(Arc<ProxyDatabaseConnection>, Statement, Option<Arc<dyn Fn(&Info<'_>) + Sync + Send>>)> for QueryStream
Sourceยงimpl Stream for QueryStream
impl Stream for QueryStream
Auto Trait Implementationsยง
impl Freeze for QueryStream
impl !RefUnwindSafe for QueryStream
impl Send for QueryStream
impl !Sync for QueryStream
impl Unpin for QueryStream
impl !UnwindSafe for QueryStream
Blanket Implementationsยง
Sourceยงimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Sourceยงfn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Sourceยงimpl<T> Instrument for T
impl<T> Instrument for T
Sourceยงfn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Sourceยงfn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Sourceยงimpl<T> IntoEither for T
impl<T> IntoEither for T
Sourceยงfn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSourceยงfn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSourceยงimpl<S> StreamExt for S
impl<S> StreamExt for S
Sourceยงfn next(&mut self) -> NextFuture<'_, Self>where
Self: Unpin,
fn next(&mut self) -> NextFuture<'_, Self>where
Self: Unpin,
Retrieves the next item in the stream. Read more
Sourceยงfn try_next<T, E>(&mut self) -> TryNextFuture<'_, Self>
fn try_next<T, E>(&mut self) -> TryNextFuture<'_, Self>
Retrieves the next item in the stream. Read more
Sourceยงfn count(self) -> CountFuture<Self>where
Self: Sized,
fn count(self) -> CountFuture<Self>where
Self: Sized,
Counts the number of items in the stream. Read more
Sourceยงfn map<T, F>(self, f: F) -> Map<Self, F>
fn map<T, F>(self, f: F) -> Map<Self, F>
Maps items of the stream to new values using a closure. Read more
Sourceยงfn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>
Maps items to streams and then concatenates them. Read more
Sourceยงfn then<F, Fut>(self, f: F) -> Then<Self, F, Fut>
fn then<F, Fut>(self, f: F) -> Then<Self, F, Fut>
Maps items of the stream to new values using an async closure. Read more
Sourceยงfn filter_map<T, F>(self, f: F) -> FilterMap<Self, F>
fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F>
Filters and maps items of the stream using a closure. Read more
Sourceยงfn take(self, n: usize) -> Take<Self>where
Self: Sized,
fn take(self, n: usize) -> Take<Self>where
Self: Sized,
Takes only the first
n
items of the stream. Read moreSourceยงfn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>
Sourceยงfn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
fn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
Skips the first
n
items of the stream. Read moreSourceยงfn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>
Sourceยงfn step_by(self, step: usize) -> StepBy<Self>where
Self: Sized,
fn step_by(self, step: usize) -> StepBy<Self>where
Self: Sized,
Yields every
step
th item. Read moreSourceยงfn chain<U>(self, other: U) -> Chain<Self, U>
fn chain<U>(self, other: U) -> Chain<Self, U>
Appends another stream to the end of this one. Read more
Sourceยงfn collect<C>(self) -> CollectFuture<Self, C>
fn collect<C>(self) -> CollectFuture<Self, C>
Collects all items in the stream into a collection. Read more
Sourceยงfn try_collect<T, E, C>(self) -> TryCollectFuture<Self, C>
fn try_collect<T, E, C>(self) -> TryCollectFuture<Self, C>
Collects all items in the fallible stream into a collection. Read more
Sourceยงfn partition<B, P>(self, predicate: P) -> PartitionFuture<Self, P, B>
fn partition<B, P>(self, predicate: P) -> PartitionFuture<Self, P, B>
Partitions items into those for which
predicate
is true
and those for which it is
false
, and then collects them into two collections. Read moreSourceยงfn fold<T, F>(self, init: T, f: F) -> FoldFuture<Self, F, T>
fn fold<T, F>(self, init: T, f: F) -> FoldFuture<Self, F, T>
Accumulates a computation over the stream. Read more
Sourceยงfn try_fold<T, E, F, B>(
&mut self,
init: B,
f: F,
) -> TryFoldFuture<'_, Self, F, B>
fn try_fold<T, E, F, B>( &mut self, init: B, f: F, ) -> TryFoldFuture<'_, Self, F, B>
Accumulates a fallible computation over the stream. Read more
Sourceยงfn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>
fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>
Maps items of the stream to new values using a state value and a closure. Read more
Sourceยงfn enumerate(self) -> Enumerate<Self>where
Self: Sized,
fn enumerate(self) -> Enumerate<Self>where
Self: Sized,
Enumerates items, mapping them to
(index, item)
. Read moreSourceยงfn inspect<F>(self, f: F) -> Inspect<Self, F>
fn inspect<F>(self, f: F) -> Inspect<Self, F>
Calls a closure on each item and passes it on. Read more
Sourceยงfn nth(&mut self, n: usize) -> NthFuture<'_, Self>where
Self: Unpin,
fn nth(&mut self, n: usize) -> NthFuture<'_, Self>where
Self: Unpin,
Gets the
n
th item of the stream. Read moreSourceยงfn last(self) -> LastFuture<Self>where
Self: Sized,
fn last(self) -> LastFuture<Self>where
Self: Sized,
Returns the last item in the stream. Read more
Sourceยงfn find<P>(&mut self, predicate: P) -> FindFuture<'_, Self, P>
fn find<P>(&mut self, predicate: P) -> FindFuture<'_, Self, P>
Sourceยงfn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F>
fn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F>
Sourceยงfn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P>
fn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P>
Sourceยงfn for_each<F>(self, f: F) -> ForEachFuture<Self, F>
fn for_each<F>(self, f: F) -> ForEachFuture<Self, F>
Calls a closure on each item of the stream. Read more
Sourceยงfn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F>
fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F>
Calls a fallible closure on each item of the stream, stopping on first error. Read more
Sourceยงfn zip<U>(self, other: U) -> Zip<Self, U>
fn zip<U>(self, other: U) -> Zip<Self, U>
Zips up two streams into a single stream of pairs. Read more
Sourceยงfn unzip<A, B, FromA, FromB>(self) -> UnzipFuture<Self, FromA, FromB>
fn unzip<A, B, FromA, FromB>(self) -> UnzipFuture<Self, FromA, FromB>
Collects a stream of pairs into a pair of collections. Read more
Sourceยงfn race<S>(self, other: S) -> Race<Self, S>
fn race<S>(self, other: S) -> Race<Self, S>
Merges with
other
stream, with no preference for either stream when both are ready. Read moreSourceยงimpl<S> StreamExt for S
impl<S> StreamExt for S
Sourceยงfn next(&mut self) -> NextFuture<'_, Self>where
Self: Unpin,
fn next(&mut self) -> NextFuture<'_, Self>where
Self: Unpin,
Retrieves the next item in the stream. Read more
Sourceยงfn try_next<T, E>(&mut self) -> TryNextFuture<'_, Self>
fn try_next<T, E>(&mut self) -> TryNextFuture<'_, Self>
Retrieves the next item in the stream. Read more
Sourceยงfn count(self) -> CountFuture<Self>where
Self: Sized,
fn count(self) -> CountFuture<Self>where
Self: Sized,
Counts the number of items in the stream. Read more
Sourceยงfn map<T, F>(self, f: F) -> Map<Self, F>
fn map<T, F>(self, f: F) -> Map<Self, F>
Maps items of the stream to new values using a closure. Read more
Sourceยงfn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>
Maps items to streams and then concatenates them. Read more
Sourceยงfn then<F, Fut>(self, f: F) -> Then<Self, F, Fut>
fn then<F, Fut>(self, f: F) -> Then<Self, F, Fut>
Maps items of the stream to new values using an async closure. Read more
Sourceยงfn filter_map<T, F>(self, f: F) -> FilterMap<Self, F>
fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F>
Filters and maps items of the stream using a closure. Read more
Sourceยงfn take(self, n: usize) -> Take<Self>where
Self: Sized,
fn take(self, n: usize) -> Take<Self>where
Self: Sized,
Takes only the first
n
items of the stream. Read moreSourceยงfn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>
Sourceยงfn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
fn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
Skips the first
n
items of the stream. Read moreSourceยงfn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>
Sourceยงfn step_by(self, step: usize) -> StepBy<Self>where
Self: Sized,
fn step_by(self, step: usize) -> StepBy<Self>where
Self: Sized,
Yields every
step
th item. Read moreSourceยงfn chain<U>(self, other: U) -> Chain<Self, U>
fn chain<U>(self, other: U) -> Chain<Self, U>
Appends another stream to the end of this one. Read more
Sourceยงfn collect<C>(self) -> CollectFuture<Self, C>
fn collect<C>(self) -> CollectFuture<Self, C>
Collects all items in the stream into a collection. Read more
Sourceยงfn try_collect<T, E, C>(self) -> TryCollectFuture<Self, C>
fn try_collect<T, E, C>(self) -> TryCollectFuture<Self, C>
Collects all items in the fallible stream into a collection. Read more
Sourceยงfn partition<B, P>(self, predicate: P) -> PartitionFuture<Self, P, B>
fn partition<B, P>(self, predicate: P) -> PartitionFuture<Self, P, B>
Partitions items into those for which
predicate
is true
and those for which it is
false
, and then collects them into two collections. Read moreSourceยงfn fold<T, F>(self, init: T, f: F) -> FoldFuture<Self, F, T>
fn fold<T, F>(self, init: T, f: F) -> FoldFuture<Self, F, T>
Accumulates a computation over the stream. Read more
Sourceยงfn try_fold<T, E, F, B>(
&mut self,
init: B,
f: F,
) -> TryFoldFuture<'_, Self, F, B>
fn try_fold<T, E, F, B>( &mut self, init: B, f: F, ) -> TryFoldFuture<'_, Self, F, B>
Accumulates a fallible computation over the stream. Read more
Sourceยงfn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>
fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>
Maps items of the stream to new values using a state value and a closure. Read more
Sourceยงfn enumerate(self) -> Enumerate<Self>where
Self: Sized,
fn enumerate(self) -> Enumerate<Self>where
Self: Sized,
Enumerates items, mapping them to
(index, item)
. Read moreSourceยงfn inspect<F>(self, f: F) -> Inspect<Self, F>
fn inspect<F>(self, f: F) -> Inspect<Self, F>
Calls a closure on each item and passes it on. Read more
Sourceยงfn nth(&mut self, n: usize) -> NthFuture<'_, Self>where
Self: Unpin,
fn nth(&mut self, n: usize) -> NthFuture<'_, Self>where
Self: Unpin,
Gets the
n
th item of the stream. Read moreSourceยงfn last(self) -> LastFuture<Self>where
Self: Sized,
fn last(self) -> LastFuture<Self>where
Self: Sized,
Returns the last item in the stream. Read more
Sourceยงfn find<P>(&mut self, predicate: P) -> FindFuture<'_, Self, P>
fn find<P>(&mut self, predicate: P) -> FindFuture<'_, Self, P>
Sourceยงfn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F>
fn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F>
Sourceยงfn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P>
fn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P>
Sourceยงfn for_each<F>(self, f: F) -> ForEachFuture<Self, F>
fn for_each<F>(self, f: F) -> ForEachFuture<Self, F>
Calls a closure on each item of the stream. Read more
Sourceยงfn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F>
fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F>
Calls a fallible closure on each item of the stream, stopping on first error. Read more
Sourceยงfn zip<U>(self, other: U) -> Zip<Self, U>
fn zip<U>(self, other: U) -> Zip<Self, U>
Zips up two streams into a single stream of pairs. Read more
Sourceยงfn unzip<A, B, FromA, FromB>(self) -> UnzipFuture<Self, FromA, FromB>
fn unzip<A, B, FromA, FromB>(self) -> UnzipFuture<Self, FromA, FromB>
Collects a stream of pairs into a pair of collections. Read more
Sourceยงfn race<S>(self, other: S) -> Race<Self, S>
fn race<S>(self, other: S) -> Race<Self, S>
Merges with
other
stream, with no preference for either stream when both are ready. Read moreSourceยงfn drain(&mut self) -> Drain<'_, Self>
fn drain(&mut self) -> Drain<'_, Self>
Yields all immediately available values from a stream. Read more
Sourceยงimpl<T> StreamExt for T
impl<T> StreamExt for T
Sourceยงfn next(&mut self) -> Next<'_, Self>where
Self: Unpin,
fn next(&mut self) -> Next<'_, Self>where
Self: Unpin,
Creates a future that resolves to the next item in the stream. Read more
Sourceยงfn into_future(self) -> StreamFuture<Self>
fn into_future(self) -> StreamFuture<Self>
Sourceยงfn map<T, F>(self, f: F) -> Map<Self, F>
fn map<T, F>(self, f: F) -> Map<Self, F>
Maps this streamโs items to a different type, returning a new stream of
the resulting type. Read more
Sourceยงfn enumerate(self) -> Enumerate<Self>where
Self: Sized,
fn enumerate(self) -> Enumerate<Self>where
Self: Sized,
Creates a stream which gives the current iteration count as well as
the next value. Read more
Sourceยงfn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F>
fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F>
Filters the values produced by this stream according to the provided
asynchronous predicate. Read more
Sourceยงfn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F>
fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F>
Filters the values produced by this stream while simultaneously mapping
them to a different type according to the provided asynchronous closure. Read more
Sourceยงfn then<Fut, F>(self, f: F) -> Then<Self, Fut, F>
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F>
Computes from this streamโs items new items of a different type using
an asynchronous closure. Read more
Sourceยงfn collect<C>(self) -> Collect<Self, C>
fn collect<C>(self) -> Collect<Self, C>
Transforms a stream into a collection, returning a
future representing the result of that computation. Read more
Sourceยงfn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB>
fn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB>
Converts a stream of pairs into a future, which
resolves to pair of containers. Read more
Sourceยงfn concat(self) -> Concat<Self>
fn concat(self) -> Concat<Self>
Concatenate all items of a stream into a single extendable
destination, returning a future representing the end result. Read more
Sourceยงfn count(self) -> Count<Self>where
Self: Sized,
fn count(self) -> Count<Self>where
Self: Sized,
Drives the stream to completion, counting the number of items. Read more
Sourceยงfn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F>
fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F>
Execute an accumulating asynchronous computation over a stream,
collecting all the values into one final result. Read more
Sourceยงfn any<Fut, F>(self, f: F) -> Any<Self, Fut, F>
fn any<Fut, F>(self, f: F) -> Any<Self, Fut, F>
Execute predicate over asynchronous stream, and return
true
if any element in stream satisfied a predicate. Read moreSourceยงfn all<Fut, F>(self, f: F) -> All<Self, Fut, F>
fn all<Fut, F>(self, f: F) -> All<Self, Fut, F>
Execute predicate over asynchronous stream, and return
true
if all element in stream satisfied a predicate. Read moreSourceยงfn flatten(self) -> Flatten<Self>
fn flatten(self) -> Flatten<Self>
Flattens a stream of streams into just one continuous stream. Read more
Sourceยงfn flatten_unordered(
self,
limit: impl Into<Option<usize>>,
) -> FlattenUnorderedWithFlowController<Self, ()>
fn flatten_unordered( self, limit: impl Into<Option<usize>>, ) -> FlattenUnorderedWithFlowController<Self, ()>
Flattens a stream of streams into just one continuous stream. Polls
inner streams produced by the base stream concurrently. Read more
Sourceยงfn flat_map_unordered<U, F>(
self,
limit: impl Into<Option<usize>>,
f: F,
) -> FlatMapUnordered<Self, U, F>
fn flat_map_unordered<U, F>( self, limit: impl Into<Option<usize>>, f: F, ) -> FlatMapUnordered<Self, U, F>
Maps a stream like
StreamExt::map
but flattens nested Stream
s
and polls them concurrently, yielding items in any order, as they made
available. Read moreSourceยงfn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F>
fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F>
Combinator similar to
StreamExt::fold
that holds internal state
and produces a new stream. Read moreSourceยงfn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F>
fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F>
Skip elements on this stream while the provided asynchronous predicate
resolves to
true
. Read moreSourceยงfn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F>
fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F>
Take elements from this stream while the provided asynchronous predicate
resolves to
true
. Read moreSourceยงfn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut>
fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut>
Take elements from this stream until the provided future resolves. Read more
Sourceยงfn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>
fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>
Runs this stream to completion, executing the provided asynchronous
closure for each element on the stream. Read more
Sourceยงfn for_each_concurrent<Fut, F>(
self,
limit: impl Into<Option<usize>>,
f: F,
) -> ForEachConcurrent<Self, Fut, F>
fn for_each_concurrent<Fut, F>( self, limit: impl Into<Option<usize>>, f: F, ) -> ForEachConcurrent<Self, Fut, F>
Runs this stream to completion, executing the provided asynchronous
closure for each element on the stream concurrently as elements become
available. Read more
Sourceยงfn take(self, n: usize) -> Take<Self>where
Self: Sized,
fn take(self, n: usize) -> Take<Self>where
Self: Sized,
Creates a new stream of at most
n
items of the underlying stream. Read moreSourceยงfn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
fn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
Creates a new stream which skips
n
items of the underlying stream. Read moreSourceยงfn catch_unwind(self) -> CatchUnwind<Self>where
Self: Sized + UnwindSafe,
fn catch_unwind(self) -> CatchUnwind<Self>where
Self: Sized + UnwindSafe,
Catches unwinding panics while polling the stream. Read more
Sourceยงfn boxed<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a>>
fn boxed<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a>>
Wrap the stream in a Box, pinning it. Read more
Sourceยงfn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a>>where
Self: Sized + 'a,
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a>>where
Self: Sized + 'a,
Wrap the stream in a Box, pinning it. Read more
Sourceยงfn buffered(self, n: usize) -> Buffered<Self>
fn buffered(self, n: usize) -> Buffered<Self>
An adaptor for creating a buffered list of pending futures. Read more
Sourceยงfn buffer_unordered(self, n: usize) -> BufferUnordered<Self>
fn buffer_unordered(self, n: usize) -> BufferUnordered<Self>
An adaptor for creating a buffered list of pending futures (unordered). Read more
Sourceยงfn zip<St>(self, other: St) -> Zip<Self, St>
fn zip<St>(self, other: St) -> Zip<Self, St>
An adapter for zipping two streams together. Read more
Sourceยงfn peekable(self) -> Peekable<Self>where
Self: Sized,
fn peekable(self) -> Peekable<Self>where
Self: Sized,
Creates a new stream which exposes a
peek
method. Read moreSourceยงfn chunks(self, capacity: usize) -> Chunks<Self>where
Self: Sized,
fn chunks(self, capacity: usize) -> Chunks<Self>where
Self: Sized,
An adaptor for chunking up items of the stream inside a vector. Read more
Sourceยงfn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>where
Self: Sized,
fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>where
Self: Sized,
An adaptor for chunking up ready items of the stream inside a vector. Read more
Sourceยงfn forward<S>(self, sink: S) -> Forward<Self, S>
fn forward<S>(self, sink: S) -> Forward<Self, S>
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
Sourceยงfn split<Item>(self) -> (SplitSink<Self, Item>, SplitStream<Self>)
fn split<Item>(self) -> (SplitSink<Self, Item>, SplitStream<Self>)
Sourceยงfn inspect<F>(self, f: F) -> Inspect<Self, F>
fn inspect<F>(self, f: F) -> Inspect<Self, F>
Do something with each item of this stream, afterwards passing it on. Read more
Sourceยงfn left_stream<B>(self) -> Either<Self, B>
fn left_stream<B>(self) -> Either<Self, B>
Sourceยงfn right_stream<B>(self) -> Either<B, Self>
fn right_stream<B>(self) -> Either<B, Self>
Sourceยงfn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>where
Self: Unpin,
fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>where
Self: Unpin,
A convenience method for calling
Stream::poll_next
on Unpin
stream types.Sourceยงfn select_next_some(&mut self) -> SelectNextSome<'_, Self>where
Self: Unpin + FusedStream,
fn select_next_some(&mut self) -> SelectNextSome<'_, Self>where
Self: Unpin + FusedStream,
Sourceยงimpl<T> StreamExt for T
impl<T> StreamExt for T
Sourceยงfn next(&mut self) -> NextFuture<'_, Self>where
Self: Unpin,
fn next(&mut self) -> NextFuture<'_, Self>where
Self: Unpin,
Advances the stream and returns the next value. Read more
Sourceยงfn take(self, n: usize) -> Take<Self>where
Self: Sized,
fn take(self, n: usize) -> Take<Self>where
Self: Sized,
Creates a stream that yields its first
n
elements. Read moreSourceยงfn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>
Creates a stream that yields elements based on a predicate. Read more
Sourceยงfn step_by(self, step: usize) -> StepBy<Self>where
Self: Sized,
fn step_by(self, step: usize) -> StepBy<Self>where
Self: Sized,
Creates a stream that yields each
step
th element. Read moreSourceยงfn chain<U>(self, other: U) -> Chain<Self, U>
fn chain<U>(self, other: U) -> Chain<Self, U>
Takes two streams and creates a new stream over both in sequence. Read more
Sourceยงfn cloned<'a, T>(self) -> Cloned<Self>
fn cloned<'a, T>(self) -> Cloned<Self>
Creates an stream which copies all of its elements. Read more
Sourceยงfn copied<'a, T>(self) -> Copied<Self>
fn copied<'a, T>(self) -> Copied<Self>
Creates an stream which copies all of its elements. Read more
Sourceยงfn cycle(self) -> Cycle<Self>
fn cycle(self) -> Cycle<Self>
Creates a stream that yields the provided values infinitely and in order. Read more
Sourceยงfn enumerate(self) -> Enumerate<Self>where
Self: Sized,
fn enumerate(self) -> Enumerate<Self>where
Self: Sized,
Creates a stream that gives the current elementโs count as well as the next value. Read more
Sourceยงfn map<B, F>(self, f: F) -> Map<Self, F>
fn map<B, F>(self, f: F) -> Map<Self, F>
Takes a closure and creates a stream that calls that closure on every element of this stream. Read more
Sourceยงfn inspect<F>(self, f: F) -> Inspect<Self, F>
fn inspect<F>(self, f: F) -> Inspect<Self, F>
A combinator that does something with each element in the stream, passing the value
on. Read more
Sourceยงfn last(self) -> LastFuture<Self, Self::Item>where
Self: Sized,
fn last(self) -> LastFuture<Self, Self::Item>where
Self: Sized,
Returns the last element of the stream. Read more
Sourceยงfn fuse(self) -> Fuse<Self>where
Self: Sized,
fn fuse(self) -> Fuse<Self>where
Self: Sized,
Creates a stream which ends after the first
None
. Read moreSourceยงfn filter<P>(self, predicate: P) -> Filter<Self, P>
fn filter<P>(self, predicate: P) -> Filter<Self, P>
Creates a stream that uses a predicate to determine if an element should be yielded. Read more
Sourceยงfn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>
fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>
Both filters and maps a stream. Read more
Sourceยงfn min_by_key<B, F>(self, key_by: F) -> MinByKeyFuture<Self, Self::Item, F>
fn min_by_key<B, F>(self, key_by: F) -> MinByKeyFuture<Self, Self::Item, F>
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 moreSourceยงfn max_by_key<B, F>(self, key_by: F) -> MaxByKeyFuture<Self, Self::Item, F>
fn max_by_key<B, F>(self, key_by: F) -> MaxByKeyFuture<Self, Self::Item, F>
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 moreSourceยงfn min_by<F>(self, compare: F) -> MinByFuture<Self, F, Self::Item>
fn min_by<F>(self, compare: F) -> MinByFuture<Self, F, Self::Item>
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 moreSourceยงfn max(self) -> MaxFuture<Self, Self::Item>
fn max(self) -> MaxFuture<Self, Self::Item>
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 moreSourceยงfn min(self) -> MinFuture<Self, Self::Item>
fn min(self) -> MinFuture<Self, Self::Item>
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 moreSourceยงfn max_by<F>(self, compare: F) -> MaxByFuture<Self, F, Self::Item>
fn max_by<F>(self, compare: F) -> MaxByFuture<Self, F, Self::Item>
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 moreSourceยงfn nth(&mut self, n: usize) -> NthFuture<'_, Self>
fn nth(&mut self, n: usize) -> NthFuture<'_, Self>
Returns the nth element of the stream. Read more
Sourceยงfn all<F>(&mut self, f: F) -> AllFuture<'_, Self, F, Self::Item>
fn all<F>(&mut self, f: F) -> AllFuture<'_, Self, F, Self::Item>
Tests if every element of the stream matches a predicate. Read more
Sourceยงfn find<P>(&mut self, p: P) -> FindFuture<'_, Self, P>
fn find<P>(&mut self, p: P) -> FindFuture<'_, Self, P>
Searches for an element in a stream that satisfies a predicate. Read more
Sourceยงfn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F>
fn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F>
Applies function to the elements of stream and returns the first non-none result. Read more
Sourceยงfn fold<B, F>(self, init: B, f: F) -> FoldFuture<Self, F, B>
fn fold<B, F>(self, init: B, f: F) -> FoldFuture<Self, F, B>
A combinator that applies a function to every element in a stream
producing a single, final value. Read more
Sourceยงfn for_each<F>(self, f: F) -> ForEachFuture<Self, F>
fn for_each<F>(self, f: F) -> ForEachFuture<Self, F>
Call a closure on each element of the stream. Read more
Sourceยงfn any<F>(&mut self, f: F) -> AnyFuture<'_, Self, F, Self::Item>
fn any<F>(&mut self, f: F) -> AnyFuture<'_, Self, F, Self::Item>
Tests if any element of the stream matches a predicate. Read more
Sourceยงfn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>
Combinator that
skip
s elements based on a predicate. Read moreSourceยงfn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
fn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
Creates a combinator that skips the first
n
elements. Read moreSourceยงfn try_fold<B, F, T, E>(
&mut self,
init: T,
f: F,
) -> TryFoldFuture<'_, Self, F, T>
fn try_fold<B, F, T, E>( &mut self, init: T, f: F, ) -> TryFoldFuture<'_, Self, F, T>
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
Sourceยงfn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F>
fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F>
Applies a falliable function to each element in a stream, stopping at first error and returning it. Read more
Sourceยงfn zip<U>(self, other: U) -> Zip<Self, U>
fn zip<U>(self, other: U) -> Zip<Self, U>
โZips upโ two streams into a single stream of pairs. Read more
Sourceยงfn partial_cmp<S>(self, other: S) -> PartialCmpFuture<Self, S>
fn partial_cmp<S>(self, other: S) -> PartialCmpFuture<Self, S>
Lexicographically compares the elements of this
Stream
with those
of another. Read moreSourceยงfn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P>
fn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P>
Searches for an element in a Stream that satisfies a predicate, returning
its index. Read more
Sourceยงfn cmp<S>(self, other: S) -> CmpFuture<Self, S>
fn cmp<S>(self, other: S) -> CmpFuture<Self, S>
Lexicographically compares the elements of this
Stream
with those
of another using โOrdโ. Read moreSourceยงfn ne<S>(self, other: S) -> NeFuture<Self, S>
fn ne<S>(self, other: S) -> NeFuture<Self, S>
Determines if the elements of this
Stream
are lexicographically
not equal to those of another. Read moreSourceยงfn ge<S>(self, other: S) -> GeFuture<Self, S>
fn ge<S>(self, other: S) -> GeFuture<Self, S>
Determines if the elements of this
Stream
are lexicographically
greater than or equal to those of another. Read moreSourceยงfn eq<S>(self, other: S) -> EqFuture<Self, S>
fn eq<S>(self, other: S) -> EqFuture<Self, S>
Determines if the elements of this
Stream
are lexicographically
equal to those of another. Read moreSourceยงfn gt<S>(self, other: S) -> GtFuture<Self, S>
fn gt<S>(self, other: S) -> GtFuture<Self, S>
Determines if the elements of this
Stream
are lexicographically
greater than those of another. Read moreSourceยงimpl<S> TryStreamExt for S
impl<S> TryStreamExt for S
Sourceยงfn err_into<E>(self) -> ErrInto<Self, E>
fn err_into<E>(self) -> ErrInto<Self, E>
Wraps the current stream in a new stream which converts the error type
into the one provided. Read more
Sourceยงfn map_ok<T, F>(self, f: F) -> MapOk<Self, F>
fn map_ok<T, F>(self, f: F) -> MapOk<Self, F>
Wraps the current stream in a new stream which maps the success value
using the provided closure. Read more
Sourceยงfn map_err<E, F>(self, f: F) -> MapErr<Self, F>
fn map_err<E, F>(self, f: F) -> MapErr<Self, F>
Wraps the current stream in a new stream which maps the error value
using the provided closure. Read more
Sourceยงfn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F>
fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F>
Chain on a computation for when a value is ready, passing the successful
results to the provided closure
f
. Read moreSourceยงfn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F>
fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F>
Chain on a computation for when an error happens, passing the
erroneous result to the provided closure
f
. Read moreSourceยงfn inspect_ok<F>(self, f: F) -> InspectOk<Self, F>
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F>
Do something with the success value of this stream, afterwards passing
it on. Read more
Sourceยงfn inspect_err<F>(self, f: F) -> InspectErr<Self, F>
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>
Do something with the error value of this stream, afterwards passing it on. Read more
Sourceยงfn into_stream(self) -> IntoStream<Self>where
Self: Sized,
fn into_stream(self) -> IntoStream<Self>where
Self: Sized,
Sourceยงfn try_next(&mut self) -> TryNext<'_, Self>where
Self: Unpin,
fn try_next(&mut self) -> TryNext<'_, Self>where
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
Sourceยงfn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F>
fn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F>
Attempts to run this stream to completion, executing the provided
asynchronous closure for each element on the stream. Read more
Sourceยงfn try_skip_while<Fut, F>(self, f: F) -> TrySkipWhile<Self, Fut, F>
fn try_skip_while<Fut, F>(self, f: F) -> TrySkipWhile<Self, Fut, F>
Skip elements on this stream while the provided asynchronous predicate
resolves to
true
. Read moreSourceยงfn try_take_while<Fut, F>(self, f: F) -> TryTakeWhile<Self, Fut, F>
fn try_take_while<Fut, F>(self, f: F) -> TryTakeWhile<Self, Fut, F>
Take elements on this stream while the provided asynchronous predicate
resolves to
true
. Read moreSourceยงfn try_for_each_concurrent<Fut, F>(
self,
limit: impl Into<Option<usize>>,
f: F,
) -> TryForEachConcurrent<Self, Fut, F>
fn try_for_each_concurrent<Fut, F>( self, limit: impl Into<Option<usize>>, f: F, ) -> TryForEachConcurrent<Self, Fut, F>
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
Sourceยงfn try_collect<C>(self) -> TryCollect<Self, C>
fn try_collect<C>(self) -> TryCollect<Self, C>
Attempt to transform a stream into a collection,
returning a future representing the result of that computation. Read more
Sourceยงfn try_chunks(self, capacity: usize) -> TryChunks<Self>where
Self: Sized,
fn try_chunks(self, capacity: usize) -> TryChunks<Self>where
Self: Sized,
An adaptor for chunking up successful items of the stream inside a vector. Read more
Sourceยงfn try_ready_chunks(self, capacity: usize) -> TryReadyChunks<Self>where
Self: Sized,
fn try_ready_chunks(self, capacity: usize) -> TryReadyChunks<Self>where
Self: Sized,
An adaptor for chunking up successful, ready items of the stream inside a vector. Read more
Sourceยงfn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F>
fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F>
Attempt to filter the values produced by this stream according to the
provided asynchronous closure. Read more
Sourceยงfn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F>
fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F>
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
Sourceยงfn try_flatten_unordered(
self,
limit: impl Into<Option<usize>>,
) -> TryFlattenUnordered<Self>
fn try_flatten_unordered( self, limit: impl Into<Option<usize>>, ) -> TryFlattenUnordered<Self>
Flattens a stream of streams into just one continuous stream. Produced streams
will be polled concurrently and any errors will be passed through without looking at them.
If the underlying base stream returns an error, it will be immediately propagated. Read more
Sourceยงfn try_flatten(self) -> TryFlatten<Self>
fn try_flatten(self) -> TryFlatten<Self>
Flattens a stream of streams into just one continuous stream. Read more
Sourceยงfn try_fold<T, Fut, F>(self, init: T, f: F) -> TryFold<Self, Fut, T, F>
fn try_fold<T, Fut, F>(self, init: T, f: F) -> TryFold<Self, Fut, T, F>
Attempt to execute an accumulating asynchronous computation over a
stream, collecting all the values into one final result. Read more
Sourceยงfn try_concat(self) -> TryConcat<Self>
fn try_concat(self) -> TryConcat<Self>
Attempt to concatenate all items of a stream into a single
extendable destination, returning a future representing the end result. Read more
Sourceยงfn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self>
fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self>
Attempt to execute several futures from a stream concurrently (unordered). Read more
Sourceยงfn try_buffered(self, n: usize) -> TryBuffered<Self>
fn try_buffered(self, n: usize) -> TryBuffered<Self>
Attempt to execute several futures from a stream concurrently. Read more
Sourceยงfn try_poll_next_unpin(
&mut self,
cx: &mut Context<'_>,
) -> Poll<Option<Result<Self::Ok, Self::Error>>>where
Self: Unpin,
fn try_poll_next_unpin(
&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.Sourceยงfn into_async_read(self) -> IntoAsyncRead<Self>
fn into_async_read(self) -> IntoAsyncRead<Self>
Adapter that converts this stream into an
AsyncBufRead
. Read moreSourceยงfn try_all<Fut, F>(self, f: F) -> TryAll<Self, Fut, F>
fn try_all<Fut, F>(self, f: F) -> TryAll<Self, Fut, F>
Attempt to execute a predicate over an asynchronous stream and evaluate if all items
satisfy the predicate. Exits early if an
Err
is encountered or if an Ok
item is found
that does not satisfy the predicate. Read more