Struct Filter
#[must_use = "streams do nothing unless polled"]
pub struct Filter<St, Fut, F>
where
St: Stream, { /* private fields */ }Stream for the filter method.
Implementations
impl<St, Fut, F> Filter<St, Fut, F>
where
St: Stream,
F: for<'a> FnMut1<&'a St::Item, Output = Fut>,
Fut: Future<Output = bool>,
fn get_ref(&self) -> &StAcquires a reference to the underlying sink or stream that this combinator is pulling from.
fn get_mut(&mut self) -> &mut StAcquires a mutable reference to the underlying sink or stream that this combinator is pulling from.
Note that care must be taken to avoid tampering with the state of the sink or stream which may otherwise confuse this combinator.
fn get_pin_mut(self: Pin<&mut Self>) -> Pin<&mut St>Acquires a pinned mutable reference to the underlying sink or stream that this combinator is pulling from.
Note that care must be taken to avoid tampering with the state of the sink or stream which may otherwise confuse this combinator.
fn into_inner(self) -> StConsumes this combinator, returning the underlying sink or 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<'__pin, St, Fut, F> Unpin for Filter<St, Fut, F>
where
PinnedFieldsOf<__Origin<'__pin, St, Fut, F>>: Unpin,
St: Stream,
impl<S, Fut, F, Item> Sink<Item> for Filter<S, Fut, F>
where
S: Stream + Sink<Item>,
F: FnMut(&S::Item) -> Fut,
Fut: Future<Output = bool>,
type Error = <S as Sink<Item>>::Error;fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>>fn start_send(self: Pin<&mut Self>, item: Item) -> Result<(), Self::Error>fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>>fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>>
impl<St, Fut, F> Debug for Filter<St, Fut, F>
where
St: Stream + Debug,
St::Item: Debug,
Fut: Debug,
fn fmt(&self, f: &mut Formatter<'_>) -> Result
impl<St, Fut, F> FusedStream for Filter<St, Fut, F>
where
St: Stream + FusedStream,
F: FnMut(&St::Item) -> Fut,
Fut: Future<Output = bool>,
fn is_terminated(&self) -> bool
impl<St, Fut, F> Stream for Filter<St, Fut, F>
where
St: Stream,
F: for<'a> FnMut1<&'a St::Item, Output = Fut>,
Fut: Future<Output = bool>,
type Item = <St as Stream>::Item;fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<St::Item>>fn size_hint(&self) -> (usize, Option<usize>)
Auto Trait Implementations
impl<St, Fut, F> Freeze for Filter<St, Fut, F>
where
St: Freeze,
F: Freeze,
Option<Fut>: Freeze,
Option<<St as Stream>::Item>: Freeze,
impl<St, Fut, F> RefUnwindSafe for Filter<St, Fut, F>
where
St: RefUnwindSafe,
F: RefUnwindSafe,
Option<Fut>: RefUnwindSafe,
Option<<St as Stream>::Item>: RefUnwindSafe,
impl<St, Fut, F> Send for Filter<St, Fut, F>
where
St: Send,
F: Send,
Option<Fut>: Send,
Option<<St as Stream>::Item>: Send,
impl<St, Fut, F> Sync for Filter<St, Fut, F>
where
St: Sync,
F: Sync,
Option<Fut>: Sync,
Option<<St as Stream>::Item>: Sync,
impl<St, Fut, F> UnsafeUnpin for Filter<St, Fut, F>
where
St: UnsafeUnpin,
F: UnsafeUnpin,
Option<Fut>: UnsafeUnpin,
Option<<St as Stream>::Item>: UnsafeUnpin,
impl<St, Fut, F> UnwindSafe for Filter<St, Fut, F>
where
St: UnwindSafe,
F: UnwindSafe,
Option<Fut>: UnwindSafe,
Option<<St as Stream>::Item>: UnwindSafe,
Blanket Implementations
impl<S> TryStreamExt for Filter<St, Fut, F>
where
S: TryStream + ?Sized,
impl<S, T, E> TryStream for Filter<St, Fut, F>
where
S: Stream<Item = Result<T, E>> + ?Sized,
type Ok = T;type Error = E;fn try_poll_next(self: Pin<&mut S>, cx: &mut Context<'_>) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>
impl<T> Any for Filter<St, Fut, F>
where
T: 'static + ?Sized,
fn type_id(&self) -> TypeId
impl<T> Borrow<T> for Filter<St, Fut, F>
where
T: ?Sized,
fn borrow(&self) -> &T
impl<T> BorrowMut<T> for Filter<St, Fut, F>
where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
impl<T> From<T> for Filter<St, Fut, F>
fn from(t: T) -> TReturns the argument unchanged.
impl<T> StreamExt for Filter<St, Fut, F>
where
T: Stream + ?Sized,
impl<T, Item> SinkExt<Item> for Filter<St, Fut, F>
where
T: Sink<Item> + ?Sized,
impl<T, U> Into<U> for Filter<St, Fut, F>
where
U: From<T>,
fn into(self) -> UCalls
U::from(self).That is, this conversion is whatever the implementation of
[From]<T> for Uchooses to do.
impl<T, U> TryFrom<U> for Filter<St, Fut, F>
where
U: Into<T>,
type Error = never;fn try_from(value: U) -> Result<T, never>
impl<T, U> TryInto<U> for Filter<St, Fut, F>
where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error;fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>