Struct OrElse

#[must_use = "streams do nothing unless polled"]
pub struct OrElse<St, Fut, F> { /* private fields */ }

Stream for the or_else method.

Implementations

impl<St, Fut, F> OrElse<St, Fut, F> where St: TryStream, F: FnMut(St::Error) -> Fut, Fut: TryFuture<Ok = St::Ok>,

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, Fut, F> Unpin for OrElse<St, Fut, F> where PinnedFieldsOf<__Origin<'__pin, St, Fut, F>>: Unpin,

impl<S, Fut, F, Item> Sink<Item> for OrElse<S, Fut, F> where S: Sink<Item>,

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 OrElse<St, Fut, F> where St: Debug, Fut: Debug,

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

impl<St, Fut, F> FusedStream for OrElse<St, Fut, F> where St: TryStream + FusedStream, F: FnMut(St::Error) -> Fut, Fut: TryFuture<Ok = St::Ok>,

fn is_terminated(&self) -> bool

impl<St, Fut, F> Stream for OrElse<St, Fut, F> where St: TryStream, F: FnMut(St::Error) -> Fut, Fut: TryFuture<Ok = St::Ok>,

type Item = Result<<St as TryStream>::Ok, <Fut as TryFuture>::Error>;
fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>
fn size_hint(&self) -> (usize, Option<usize>)

Auto Trait Implementations

impl<St, Fut, F> Freeze for OrElse<St, Fut, F> where St: Freeze, Option<Fut>: Freeze, F: Freeze,

impl<St, Fut, F> RefUnwindSafe for OrElse<St, Fut, F> where St: RefUnwindSafe, Option<Fut>: RefUnwindSafe, F: RefUnwindSafe,

impl<St, Fut, F> Send for OrElse<St, Fut, F> where St: Send, Option<Fut>: Send, F: Send,

impl<St, Fut, F> Sync for OrElse<St, Fut, F> where St: Sync, Option<Fut>: Sync, F: Sync,

impl<St, Fut, F> UnsafeUnpin for OrElse<St, Fut, F> where St: UnsafeUnpin, Option<Fut>: UnsafeUnpin, F: UnsafeUnpin,

impl<St, Fut, F> UnwindSafe for OrElse<St, Fut, F> where St: UnwindSafe, Option<Fut>: UnwindSafe, F: UnwindSafe,

Blanket Implementations

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

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for OrElse<St, Fut, F>

fn from(t: T) -> T

Returns the argument unchanged.

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

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

impl<T, U> Into<U> for OrElse<St, Fut, 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 OrElse<St, Fut, F> where U: Into<T>,

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

impl<T, U> TryInto<U> for OrElse<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>