Struct TryFold 

pub struct TryFold<S, F, Acc> { /* private fields */ }

A future that folds items from a stream of Results.

Short-circuits on the first error.

Created by StreamExt::try_fold.

Trait Implementations

impl<S: Debug, F: Debug, Acc: Debug> Debug for TryFold<S, F, Acc>

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

Formats the value using the given formatter.

impl<S, F, Acc, T, E> Future for TryFold<S, F, Acc>

where S: Stream<Item = Result<T, E>> + Unpin, F: FnMut(Acc, T) -> Result<Acc, E>,

type Output = Result<Acc, TryStreamError<E>>

The type of value produced on completion.

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

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

impl<S: Unpin, F, Acc> Unpin for TryFold<S, F, Acc>