Struct futures01::stream::Map [−][src]
A stream combinator which will change the type of a stream from one type to another.
This is produced by the Stream::map
method.
Implementations
impl<S, F> Map<S, F>
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pub fn get_ref(&self) -> &S
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Acquires a reference to the underlying stream that this combinator is pulling from.
pub fn get_mut(&mut self) -> &mut S
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Acquires a mutable reference to the underlying stream that this combinator is pulling from.
Note that care must be taken to avoid tampering with the state of the stream which may otherwise confuse this combinator.
pub fn into_inner(self) -> S
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Consumes this combinator, returning the underlying stream.
Note that this may discard intermediate state of this combinator, so care should be taken to avoid losing resources when this is called.
Trait Implementations
impl<S, F> Debug for Map<S, F> where
F: Debug,
S: Debug,
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F: Debug,
S: Debug,
impl<S, F> Sink for Map<S, F> where
S: Sink,
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S: Sink,
type SinkItem = <S as Sink>::SinkItem
The type of value that the sink accepts.
type SinkError = <S as Sink>::SinkError
The type of value produced by the sink when an error occurs.
pub fn start_send(
&mut self,
item: <S as Sink>::SinkItem
) -> Result<AsyncSink<<S as Sink>::SinkItem>, <S as Sink>::SinkError>
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&mut self,
item: <S as Sink>::SinkItem
) -> Result<AsyncSink<<S as Sink>::SinkItem>, <S as Sink>::SinkError>
pub fn poll_complete(&mut self) -> Result<Async<()>, <S as Sink>::SinkError>
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pub fn close(&mut self) -> Result<Async<()>, <S as Sink>::SinkError>
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pub fn wait(self) -> Wait<Self>
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pub fn with<U, F, Fut>(self, f: F) -> With<Self, U, F, Fut> where
F: FnMut(U) -> Fut,
Fut: IntoFuture<Item = Self::SinkItem>,
<Fut as IntoFuture>::Error: From<Self::SinkError>,
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F: FnMut(U) -> Fut,
Fut: IntoFuture<Item = Self::SinkItem>,
<Fut as IntoFuture>::Error: From<Self::SinkError>,
pub fn with_flat_map<U, F, St>(self, f: F) -> WithFlatMap<Self, U, F, St> where
F: FnMut(U) -> St,
St: Stream<Item = Self::SinkItem, Error = Self::SinkError>,
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F: FnMut(U) -> St,
St: Stream<Item = Self::SinkItem, Error = Self::SinkError>,
pub fn sink_map_err<F, E>(self, f: F) -> SinkMapErr<Self, F> where
F: FnOnce(Self::SinkError) -> E,
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F: FnOnce(Self::SinkError) -> E,
pub fn sink_from_err<E>(self) -> SinkFromErr<Self, E> where
E: From<Self::SinkError>,
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E: From<Self::SinkError>,
pub fn buffer(self, amt: usize) -> Buffer<Self>
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pub fn fanout<S>(self, other: S) -> Fanout<Self, S> where
S: Sink<SinkItem = Self::SinkItem, SinkError = Self::SinkError>,
Self::SinkItem: Clone,
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S: Sink<SinkItem = Self::SinkItem, SinkError = Self::SinkError>,
Self::SinkItem: Clone,
pub fn flush(self) -> Flush<Self>
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pub fn send(self, item: Self::SinkItem) -> Send<Self>
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pub fn send_all<S>(self, stream: S) -> SendAll<Self, S> where
S: Stream<Item = Self::SinkItem>,
Self::SinkError: From<<S as Stream>::Error>,
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S: Stream<Item = Self::SinkItem>,
Self::SinkError: From<<S as Stream>::Error>,
impl<S, F, U> Stream for Map<S, F> where
F: FnMut(<S as Stream>::Item) -> U,
S: Stream,
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F: FnMut(<S as Stream>::Item) -> U,
S: Stream,
type Item = U
The type of item this stream will yield on success.
type Error = <S as Stream>::Error
The type of error this stream may generate.
pub fn poll(&mut self) -> Result<Async<Option<U>>, <S as Stream>::Error>
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pub fn wait(self) -> Wait<Self>ⓘ
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pub fn into_future(self) -> StreamFuture<Self>
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pub fn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> U,
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F: FnMut(Self::Item) -> U,
pub fn map_err<U, F>(self, f: F) -> MapErr<Self, F> where
F: FnMut(Self::Error) -> U,
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F: FnMut(Self::Error) -> U,
pub fn filter<F>(self, f: F) -> Filter<Self, F> where
F: FnMut(&Self::Item) -> bool,
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F: FnMut(&Self::Item) -> bool,
pub fn filter_map<F, B>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<B>,
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F: FnMut(Self::Item) -> Option<B>,
pub fn then<F, U>(self, f: F) -> Then<Self, F, U> where
F: FnMut(Result<Self::Item, Self::Error>) -> U,
U: IntoFuture,
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F: FnMut(Result<Self::Item, Self::Error>) -> U,
U: IntoFuture,
pub fn and_then<F, U>(self, f: F) -> AndThen<Self, F, U> where
F: FnMut(Self::Item) -> U,
U: IntoFuture<Error = Self::Error>,
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F: FnMut(Self::Item) -> U,
U: IntoFuture<Error = Self::Error>,
pub fn or_else<F, U>(self, f: F) -> OrElse<Self, F, U> where
F: FnMut(Self::Error) -> U,
U: IntoFuture<Item = Self::Item>,
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F: FnMut(Self::Error) -> U,
U: IntoFuture<Item = Self::Item>,
pub fn collect(self) -> Collect<Self>
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pub fn concat2(self) -> Concat2<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,
pub fn concat(self) -> Concat<Self> where
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
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Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
pub fn fold<F, T, Fut>(self, init: T, f: F) -> Fold<Self, F, Fut, T> where
F: FnMut(T, Self::Item) -> Fut,
Fut: IntoFuture<Item = T>,
Self::Error: From<<Fut as IntoFuture>::Error>,
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F: FnMut(T, Self::Item) -> Fut,
Fut: IntoFuture<Item = T>,
Self::Error: From<<Fut as IntoFuture>::Error>,
pub fn flatten(self) -> Flatten<Self> where
Self::Item: Stream,
<Self::Item as Stream>::Error: From<Self::Error>,
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Self::Item: Stream,
<Self::Item as Stream>::Error: From<Self::Error>,
pub fn skip_while<P, R>(self, pred: P) -> SkipWhile<Self, P, R> where
P: FnMut(&Self::Item) -> R,
R: IntoFuture<Item = bool, Error = Self::Error>,
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P: FnMut(&Self::Item) -> R,
R: IntoFuture<Item = bool, Error = Self::Error>,
pub fn take_while<P, R>(self, pred: P) -> TakeWhile<Self, P, R> where
P: FnMut(&Self::Item) -> R,
R: IntoFuture<Item = bool, Error = Self::Error>,
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P: FnMut(&Self::Item) -> R,
R: IntoFuture<Item = bool, Error = Self::Error>,
pub fn for_each<F, U>(self, f: F) -> ForEach<Self, F, U> where
F: FnMut(Self::Item) -> U,
U: IntoFuture<Item = (), Error = Self::Error>,
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F: FnMut(Self::Item) -> U,
U: IntoFuture<Item = (), Error = Self::Error>,
pub fn from_err<E>(self) -> FromErr<Self, E> where
E: From<Self::Error>,
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E: From<Self::Error>,
pub fn take(self, amt: u64) -> Take<Self>
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pub fn skip(self, amt: u64) -> Skip<Self>
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pub fn fuse(self) -> Fuse<Self>
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pub fn by_ref(&mut self) -> &mut Self
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pub fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
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Self: UnwindSafe,
pub fn buffered(self, amt: usize) -> Buffered<Self> where
Self::Item: IntoFuture,
<Self::Item as IntoFuture>::Error == Self::Error,
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Self::Item: IntoFuture,
<Self::Item as IntoFuture>::Error == Self::Error,
pub fn buffer_unordered(self, amt: usize) -> BufferUnordered<Self> where
Self::Item: IntoFuture,
<Self::Item as IntoFuture>::Error == Self::Error,
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Self::Item: IntoFuture,
<Self::Item as IntoFuture>::Error == Self::Error,
pub fn merge<S>(self, other: S) -> Merge<Self, S> where
S: Stream<Error = Self::Error>,
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S: Stream<Error = Self::Error>,
pub fn zip<S>(self, other: S) -> Zip<Self, S> where
S: Stream<Error = Self::Error>,
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S: Stream<Error = Self::Error>,
pub fn chain<S>(self, other: S) -> Chain<Self, S> where
S: Stream<Item = Self::Item, Error = Self::Error>,
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S: Stream<Item = Self::Item, Error = Self::Error>,
pub fn peekable(self) -> Peekable<Self>
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pub fn chunks(self, capacity: usize) -> Chunks<Self>
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pub fn select<S>(self, other: S) -> Select<Self, S> where
S: Stream<Item = Self::Item, Error = Self::Error>,
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S: Stream<Item = Self::Item, Error = Self::Error>,
pub fn forward<S>(self, sink: S) -> Forward<Self, S> where
S: Sink<SinkItem = Self::Item>,
Self::Error: From<<S as Sink>::SinkError>,
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S: Sink<SinkItem = Self::Item>,
Self::Error: From<<S as Sink>::SinkError>,
pub fn split(self) -> (SplitSink<Self>, SplitStream<Self>) where
Self: Sink,
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Self: Sink,
pub fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item),
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F: FnMut(&Self::Item),
pub fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnMut(&Self::Error),
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F: FnMut(&Self::Error),
Auto Trait Implementations
impl<S, F> RefUnwindSafe for Map<S, F> where
F: RefUnwindSafe,
S: RefUnwindSafe,
F: RefUnwindSafe,
S: RefUnwindSafe,
impl<S, F> Send for Map<S, F> where
F: Send,
S: Send,
F: Send,
S: Send,
impl<S, F> Sync for Map<S, F> where
F: Sync,
S: Sync,
F: Sync,
S: Sync,
impl<S, F> Unpin for Map<S, F> where
F: Unpin,
S: Unpin,
F: Unpin,
S: Unpin,
impl<S, F> UnwindSafe for Map<S, F> where
F: UnwindSafe,
S: UnwindSafe,
F: UnwindSafe,
S: UnwindSafe,
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,
pub 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, 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.
pub 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>,