Struct futures_lite::stream::TryFoldFuture[−][src]

#[must_use = "futures do nothing unless you `.await` or poll them"]
pub struct TryFoldFuture<'a, S, F, B> { /* fields omitted */ }
Expand description

Future for the StreamExt::try_fold() method.

Trait Implementations

impl<'a, S: Debug, F: Debug, B: Debug> Debug for TryFoldFuture<'a, S, F, B>[src]

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

Formats the value using the given formatter. Read more

impl<'a, T, E, S, F, B> Future for TryFoldFuture<'a, S, F, B> where
    S: Stream<Item = Result<T, E>> + Unpin,
    F: FnMut(B, T) -> Result<B, E>, [src]

type Output = Result<B, E>

The type of value produced on completion.

fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>[src]

Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available. Read more

impl<'a, S, F, B> Unpin for TryFoldFuture<'a, S, F, B>[src]

Auto Trait Implementations

impl<'a, S, F, B> RefUnwindSafe for TryFoldFuture<'a, S, F, B> where
    B: RefUnwindSafe,
    F: RefUnwindSafe,
    S: RefUnwindSafe, 

impl<'a, S, F, B> Send for TryFoldFuture<'a, S, F, B> where
    B: Send,
    F: Send,
    S: Send, 

impl<'a, S, F, B> Sync for TryFoldFuture<'a, S, F, B> where
    B: Sync,
    F: Sync,
    S: Sync, 

impl<'a, S, F, B> !UnwindSafe for TryFoldFuture<'a, S, F, B>

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<F> FutureExt for F where
    F: Future + ?Sized, [src]

fn poll(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
    Self: Unpin, [src]

A convenience for calling Future::poll() on !Unpin types.

fn or<F>(self, other: F) -> Or<Self, F>ⓘ

Notable traits for Or<F1, F2>

impl<T, F1, F2> Future for Or<F1, F2> where
    F1: Future<Output = T>,
    F2: Future<Output = T>,  type Output = T;
 where
    Self: Sized,
    F: Future<Output = Self::Output>, [src]

Returns the result of self or other future, preferring self if both are ready. Read more

fn race<F>(self, other: F) -> Race<Self, F>ⓘ

Notable traits for Race<F1, F2>

impl<T, F1, F2> Future for Race<F1, F2> where
    F1: Future<Output = T>,
    F2: Future<Output = T>,  type Output = T;
 where
    Self: Sized,
    F: Future<Output = Self::Output>, [src]

Returns the result of self or other future, with no preference if both are ready. Read more

fn catch_unwind(self) -> CatchUnwind<Self>ⓘ

Notable traits for CatchUnwind<F>

impl<F: Future + UnwindSafe> Future for CatchUnwind<F> type Output = Result<F::Output, Box<dyn Any + Send>>;
 where
    Self: Sized + UnwindSafe, [src]

Catches panics while polling the future. Read more

fn boxed<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + Send + 'a>> where
    Self: Sized + Send + 'a, [src]

Boxes the future and changes its type to dyn Future + Send + 'a. Read more

fn boxed_local<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + 'a>> where
    Self: Sized + 'a, [src]

Boxes the future and changes its type to dyn Future + 'a. Read more

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<F> IntoFuture for F where
    F: Future, [src]

type Output = <F as Future>::Output

🔬 This is a nightly-only experimental API. (into_future)

The output that the future will produce on completion.

type Future = F

🔬 This is a nightly-only experimental API. (into_future)

Which kind of future are we turning this into?

pub fn into_future(self) -> <F as IntoFuture>::Future[src]

🔬 This is a nightly-only experimental API. (into_future)

Creates a future from a value.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

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>[src]

Performs the conversion.

impl<F, T, E> TryFuture for F where
    F: Future<Output = Result<T, E>> + ?Sized, [src]

type Ok = T

The type of successful values yielded by this future

type Error = E

The type of failures yielded by this future

pub fn try_poll(
    self: Pin<&mut F>,
    cx: &mut Context<'_>
) -> Poll<<F as Future>::Output>[src]

Poll this TryFuture as if it were a Future. Read more

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.