Struct FilterMap
#[must_use = "streams do nothing unless polled"]
pub struct FilterMap<St, Fut, F> { /* private fields */ }Stream for the filter_map method.
Implementations
impl<St, Fut, F> FilterMap<St, Fut, F>
where
St: Stream,
F: FnMut(St::Item) -> Fut,
Fut: Future,
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 FilterMap<St, Fut, F>
where
PinnedFieldsOf<__Origin<'__pin, St, Fut, F>>: Unpin,
impl<S, Fut, F, Item> Sink<Item> for FilterMap<S, Fut, F>
where
S: Stream + Sink<Item>,
F: FnMut1<S::Item, Output = Fut>,
Fut: Future,
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 FilterMap<St, Fut, F>
where
St: Debug,
Fut: Debug,
fn fmt(&self, f: &mut Formatter<'_>) -> Result
impl<St, Fut, F, T> FusedStream for FilterMap<St, Fut, F>
where
St: Stream + FusedStream,
F: FnMut1<St::Item, Output = Fut>,
Fut: Future<Output = Option<T>>,
fn is_terminated(&self) -> bool
impl<St, Fut, F, T> Stream for FilterMap<St, Fut, F>
where
St: Stream,
F: FnMut1<St::Item, Output = Fut>,
Fut: Future<Output = Option<T>>,
type Item = T;fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<T>>fn size_hint(&self) -> (usize, Option<usize>)
Auto Trait Implementations
impl<St, Fut, F> Freeze for FilterMap<St, Fut, F>
where
St: Freeze,
F: Freeze,
Option<Fut>: Freeze,
impl<St, Fut, F> RefUnwindSafe for FilterMap<St, Fut, F>
where
St: RefUnwindSafe,
F: RefUnwindSafe,
Option<Fut>: RefUnwindSafe,
impl<St, Fut, F> Send for FilterMap<St, Fut, F>
where
St: Send,
F: Send,
Option<Fut>: Send,
impl<St, Fut, F> Sync for FilterMap<St, Fut, F>
where
St: Sync,
F: Sync,
Option<Fut>: Sync,
impl<St, Fut, F> UnsafeUnpin for FilterMap<St, Fut, F>
where
St: UnsafeUnpin,
F: UnsafeUnpin,
Option<Fut>: UnsafeUnpin,
impl<St, Fut, F> UnwindSafe for FilterMap<St, Fut, F>
where
St: UnwindSafe,
F: UnwindSafe,
Option<Fut>: UnwindSafe,
Blanket Implementations
impl<S> TryStreamExt for FilterMap<St, Fut, F>
where
S: TryStream + ?Sized,
impl<S, T, E> TryStream for FilterMap<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 FilterMap<St, Fut, F>
where
T: 'static + ?Sized,
fn type_id(&self) -> TypeId
impl<T> Borrow<T> for FilterMap<St, Fut, F>
where
T: ?Sized,
fn borrow(&self) -> &T
impl<T> BorrowMut<T> for FilterMap<St, Fut, F>
where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
impl<T> From<T> for FilterMap<St, Fut, F>
fn from(t: T) -> TReturns the argument unchanged.
impl<T> StreamExt for FilterMap<St, Fut, F>
where
T: Stream + ?Sized,
impl<T, Item> SinkExt<Item> for FilterMap<St, Fut, F>
where
T: Sink<Item> + ?Sized,
impl<T, U> Into<U> for FilterMap<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 FilterMap<St, Fut, F>
where
U: Into<T>,
type Error = never;fn try_from(value: U) -> Result<T, never>
impl<T, U> TryInto<U> for FilterMap<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>