Enum PollResult

pub enum PollResult<Ordering, Data> {
    Item {
        data: Data,
        ordering: Ordering,
    },
    NoneBefore,
    Terminated,
}

The result of a OrderedStream::poll_next_before operation.

Variants

Item

An item with a corresponding ordering token.

Fields

data: Data

ordering: Ordering

NoneBefore

This stream will not return any items prior to the given point.

Terminated

This stream is terminated and should not be polled again.

Implementations

impl<D, T> PollResult<T, D>

pub fn into_data(self) -> Option<D>

Extract the data from the result.

pub fn into_tuple(self) -> Option<(T, D)>

Extract the item from the result.

pub fn map_data<R>(self, f: impl FnOnce(D) -> R) -> PollResult<T, R>

Apply a closure to the data.

impl<T, D, E> PollResult<T, Result<D, E>>

pub fn transpose_result(self) -> Result<PollResult<T, D>, E>

Extract the error of a Result item.

pub fn transpose_result_item(self) -> Result<PollResult<T, D>, (T, E)>

Extract the error and ordering from a Result item.

Trait Implementations

impl<Ordering: Debug, Data: Debug> Debug for PollResult<Ordering, Data>

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

Formats the value using the given formatter.