[−][src]Struct tiberius::QueryResult
A set of Streams
of Rows
resulting from a SELECT
query. The
QueryResult
needs to be polled empty before sending another query to the
Client
, failing to do so causes a flush before the next query, slowing it
down in an undeterministic way.
If executing multiple queries, the resulting streams will be split. Before
polling the next results, a call to next_resultset
with a response of
true
is needed. When the next_resultset
returns false
the results
should not be polled anymore.
Example
let mut stream = client .query( "SELECT @P1 AS first; SELECT @P2 AS second", &[&1i32, &2i32], ) .await?; // Result of `SELECT 1`. Taking the `Stream` by reference, allowing us to // poll it later again. We fetch the value with column index. let first_result: Vec<Option<i32>> = stream .by_ref() .map_ok(|x| x.get::<i32, _>(0)) .try_collect() .await?; assert_eq!(Some(1), first_result[0]); // Allows us to poll more results. assert!(stream.next_resultset()); // Result of `SELECT 2`, this time fetching with the column name. let second_result: Vec<Option<i32>> = stream .by_ref() .map_ok(|x| x.get::<i32, _>("second")) .try_collect() .await?; assert_eq!(Some(2), second_result[0]); // No more results left. We should not poll again. assert!(!stream.next_resultset());
Implementations
impl<'a> QueryResult<'a>
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pub fn columns(&'a self) -> Option<&[Column]>
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Names of the columns of the current resultset. Order is the same as the order of columns in the rows. Needs to be called separately for every result set. None if query could not result anything.
Example
let mut result_set = client .query( "SELECT 1 AS foo; SELECT 2 AS bar", &[&1i32, &2i32, &3i32], ) .await?; let columns = result_set.columns().unwrap(); assert_eq!("foo", columns[0].name()); result_set.next_resultset(); let columns = result_set.columns().unwrap(); assert_eq!("bar", columns[0].name());
pub fn next_resultset(&mut self) -> bool
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Returns true
if stream has more result sets available. Must be called
before polling again to get results from the next query.
pub async fn into_results(__arg0: Self) -> Result<Vec<Vec<Row>>>
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Collects results from all queries in the stream into memory in the order of querying.
pub async fn into_first_result(self) -> Result<Vec<Row>>
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Collects the output of the first query, dropping any further results.
pub async fn into_row(self) -> Result<Option<Row>>
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Collects the first row from the output of the first query, dropping any further rows.
Trait Implementations
impl<'a> Debug for QueryResult<'a>
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impl<'a> Stream for QueryResult<'a>
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Auto Trait Implementations
impl<'a> !RefUnwindSafe for QueryResult<'a>
impl<'a> Send for QueryResult<'a>
impl<'a> !Sync for QueryResult<'a>
impl<'a> Unpin for QueryResult<'a>
impl<'a> !UnwindSafe for QueryResult<'a>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
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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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<T> StreamExt for T where
T: Stream + ?Sized,
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T: Stream + ?Sized,
fn next(&mut self) -> Next<Self> where
Self: Unpin,
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Self: Unpin,
fn into_future(self) -> StreamFuture<Self> where
Self: Unpin,
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Self: Unpin,
fn map<T, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> T,
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F: FnMut(Self::Item) -> T,
fn enumerate(self) -> Enumerate<Self>
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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>,
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>>,
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,
fn collect<C>(self) -> Collect<Self, C> where
C: Default + Extend<Self::Item>,
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C: Default + Extend<Self::Item>,
fn concat(self) -> Concat<Self> where
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,
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Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,
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>,
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F: FnMut(T, Self::Item) -> Fut,
Fut: Future<Output = T>,
fn flatten(self) -> Flatten<Self> where
Self::Item: Stream,
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Self::Item: Stream,
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where
F: FnMut(Self::Item) -> U,
U: Stream,
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F: FnMut(Self::Item) -> U,
U: Stream,
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>>,
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F: FnMut(&mut S, Self::Item) -> Fut,
Fut: Future<Output = Option<B>>,
fn skip_while<Fut, F>(self, f: F) -> SkipWhile<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>,
fn take_while<Fut, F>(self, f: F) -> TakeWhile<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>,
fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut> where
Fut: Future,
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Fut: Future,
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 = ()>,
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 = ()>,
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self,
limit: impl Into<Option<usize>>,
f: F
) -> ForEachConcurrent<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,
fn take(self, n: usize) -> Take<Self>
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fn skip(self, n: usize) -> Skip<Self>
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fn fuse(self) -> Fuse<Self>
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fn by_ref(&mut self) -> &mut Self
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fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
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Self: UnwindSafe,
fn boxed<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a + Send>> where
Self: Send + 'a,
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Self: Send + 'a,
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a>> where
Self: 'a,
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Self: 'a,
fn buffered(self, n: usize) -> Buffered<Self> where
Self::Item: Future,
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Self::Item: Future,
fn buffer_unordered(self, n: usize) -> BufferUnordered<Self> where
Self::Item: Future,
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Self::Item: Future,
fn zip<St>(self, other: St) -> Zip<Self, St> where
St: Stream,
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St: Stream,
fn chain<St>(self, other: St) -> Chain<Self, St> where
St: Stream<Item = Self::Item>,
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St: Stream<Item = Self::Item>,
fn peekable(self) -> Peekable<Self>
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fn chunks(self, capacity: usize) -> Chunks<Self>
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fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>
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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,
fn split<Item>(self) -> (SplitSink<Self, Item>, SplitStream<Self>) where
Self: Sink<Item>,
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Self: Sink<Item>,
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item),
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F: FnMut(&Self::Item),
fn left_stream<B>(self) -> Either<Self, B> where
B: Stream<Item = Self::Item>,
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B: Stream<Item = Self::Item>,
fn right_stream<B>(self) -> Either<B, Self> where
B: Stream<Item = Self::Item>,
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B: Stream<Item = Self::Item>,
fn poll_next_unpin(&mut self, cx: &mut Context) -> Poll<Option<Self::Item>> where
Self: Unpin,
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Self: Unpin,
fn select_next_some(&mut self) -> SelectNextSome<Self> where
Self: Unpin + FusedStream,
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Self: Unpin + FusedStream,
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,
fn take(self, n: usize) -> Take<Self>
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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,
fn step_by(self, step: usize) -> StepBy<Self>
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fn chain<U>(self, other: U) -> Chain<Self, U> where
U: Stream<Item = Self::Item>,
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U: Stream<Item = Self::Item>,
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,
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,
fn cycle(self) -> Cycle<Self> where
Self: Clone,
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Self: Clone,
fn enumerate(self) -> Enumerate<Self>
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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,
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item),
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F: FnMut(&Self::Item),
fn last(self) -> LastFuture<Self, Self::Item>
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fn fuse(self) -> Fuse<Self>
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fn filter<P>(self, predicate: P) -> Filter<Self, P> where
P: FnMut(&Self::Item) -> bool,
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P: FnMut(&Self::Item) -> bool,
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>,
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,
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,
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,
fn max(self) -> MaxFuture<Self, Self::Item> where
Self::Item: Ord,
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Self::Item: Ord,
fn min(self) -> MinFuture<Self, Self::Item> where
Self::Item: Ord,
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Self::Item: Ord,
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,
fn nth(&mut self, n: usize) -> NthFuture<Self> where
Self: Unpin,
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Self: Unpin,
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,
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,
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,
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,
fn for_each<F>(self, f: F) -> ForEachFuture<Self, F> where
F: FnMut(Self::Item),
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F: FnMut(Self::Item),
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,
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>,
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,
fn skip(self, n: usize) -> Skip<Self>
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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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F: FnMut(B, Self::Item) -> Result<T, E>,
Self: Unpin,
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,
fn zip<U>(self, other: U) -> Zip<Self, U> where
U: Stream,
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U: Stream,
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>,
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,
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,
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>,
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>,
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>,
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>,
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>,
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>,
impl<St> StreamExt for St where
St: Stream + ?Sized,
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St: Stream + ?Sized,
fn next(&mut self) -> Next<Self> where
Self: Unpin,
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Self: Unpin,
fn try_next<T, E>(&mut self) -> TryNext<Self> where
Self: Stream<Item = Result<T, E>> + Unpin,
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Self: Stream<Item = Result<T, E>> + Unpin,
fn map<T, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> T,
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F: FnMut(Self::Item) -> T,
fn merge<U>(self, other: U) -> Merge<Self, U> where
U: Stream<Item = Self::Item>,
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U: Stream<Item = Self::Item>,
fn filter<F>(self, f: F) -> Filter<Self, F> where
F: FnMut(&Self::Item) -> bool,
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F: FnMut(&Self::Item) -> bool,
fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<T>,
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F: FnMut(Self::Item) -> Option<T>,
fn fuse(self) -> Fuse<Self>
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fn take(self, n: usize) -> Take<Self>
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fn take_while<F>(self, f: F) -> TakeWhile<Self, F> where
F: FnMut(&Self::Item) -> bool,
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F: FnMut(&Self::Item) -> bool,
fn skip(self, n: usize) -> Skip<Self>
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fn skip_while<F>(self, f: F) -> SkipWhile<Self, F> where
F: FnMut(&Self::Item) -> bool,
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F: FnMut(&Self::Item) -> bool,
fn all<F>(&mut self, f: F) -> AllFuture<Self, F> where
F: FnMut(Self::Item) -> bool,
Self: Unpin,
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F: FnMut(Self::Item) -> bool,
Self: Unpin,
fn any<F>(&mut self, f: F) -> AnyFuture<Self, F> where
F: FnMut(Self::Item) -> bool,
Self: Unpin,
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F: FnMut(Self::Item) -> bool,
Self: Unpin,
fn chain<U>(self, other: U) -> Chain<Self, U> where
U: Stream<Item = Self::Item>,
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U: Stream<Item = Self::Item>,
fn fold<B, F>(self, init: B, f: F) -> FoldFuture<Self, B, F> where
F: FnMut(B, Self::Item) -> B,
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F: FnMut(B, Self::Item) -> B,
fn collect<T>(self) -> Collect<Self, T> where
T: FromStream<Self::Item>,
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T: FromStream<Self::Item>,
fn timeout(self, duration: Duration) -> Timeout<Self>
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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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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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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>>>
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>,
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Self::Error: Into<E>,
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,
fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnMut(Self::Error) -> E,
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F: FnMut(Self::Error) -> E,
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>,
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>,
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnMut(&Self::Ok),
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F: FnMut(&Self::Ok),
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnMut(&Self::Error),
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F: FnMut(&Self::Error),
fn into_stream(self) -> IntoStream<Self>
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fn try_next(&mut self) -> TryNext<Self> where
Self: Unpin,
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Self: Unpin,
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>,
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>,
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F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,
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>>,
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self,
limit: impl Into<Option<usize>>,
f: F
) -> TryForEachConcurrent<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: Future<Output = Result<(), Self::Error>>,
fn try_collect<C>(self) -> TryCollect<Self, C> where
C: Default + Extend<Self::Ok>,
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C: Default + Extend<Self::Ok>,
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>,
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>,
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>,
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>,
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,
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,
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,
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]>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,