Struct MapOk

#[must_use = "futures/streams/sinks do nothing unless you `.await` or poll them"]
pub struct MapOk<St, F> { /* private fields */ }

Stream for the map_ok method.

Implementations

impl<St, F> MapOk<St, F>

fn get_ref(&self) -> &St

Acquires a reference to the underlying sink or stream that this combinator is pulling from.

fn get_mut(&mut self) -> &mut St

Acquires 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) -> St

Consumes 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, F> Unpin for MapOk<St, F> where PinnedFieldsOf<__Origin<'__pin, St, F>>: Unpin,

impl<St, F> Debug for MapOk<St, F> where Map<IntoStream<St>, MapOkFn<F>>: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<St, F> FusedStream for MapOk<St, F> where Map<IntoStream<St>, MapOkFn<F>>: FusedStream,

fn is_terminated(&self) -> bool

impl<St, F> Stream for MapOk<St, F> where Map<IntoStream<St>, MapOkFn<F>>: Stream,

type Item = <Map<IntoStream<St>, MapOkFn<F>> as Stream>::Item;
fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>
fn size_hint(&self) -> (usize, Option<usize>)

impl<_Item, St, F> Sink<_Item> for MapOk<St, F> where Map<IntoStream<St>, MapOkFn<F>>: Sink<_Item>,

type Error = <Map<IntoStream<St>, MapOkFn<F>> 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>>

Auto Trait Implementations

impl<St, F> Freeze for MapOk<St, F> where Map<IntoStream<St>, MapOkFn<F>>: Freeze,

impl<St, F> RefUnwindSafe for MapOk<St, F> where Map<IntoStream<St>, MapOkFn<F>>: RefUnwindSafe,

impl<St, F> Send for MapOk<St, F> where Map<IntoStream<St>, MapOkFn<F>>: Send,

impl<St, F> Sync for MapOk<St, F> where Map<IntoStream<St>, MapOkFn<F>>: Sync,

impl<St, F> UnsafeUnpin for MapOk<St, F> where Map<IntoStream<St>, MapOkFn<F>>: UnsafeUnpin,

impl<St, F> UnwindSafe for MapOk<St, F> where Map<IntoStream<St>, MapOkFn<F>>: UnwindSafe,

Blanket Implementations

impl<S> TryStreamExt for MapOk<St, F> where S: TryStream + ?Sized,

impl<S, T, E> TryStream for MapOk<St, 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 MapOk<St, F> where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for MapOk<St, F> where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for MapOk<St, F> where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for MapOk<St, F>

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> StreamExt for MapOk<St, F> where T: Stream + ?Sized,

impl<T, Item> SinkExt<Item> for MapOk<St, F> where T: Sink<Item> + ?Sized,

impl<T, U> Into<U> for MapOk<St, F> where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

impl<T, U> TryFrom<U> for MapOk<St, F> where U: Into<T>,

type Error = never;
fn try_from(value: U) -> Result<T, never>

impl<T, U> TryInto<U> for MapOk<St, F> where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error;
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>