Struct actix::fut::StreamFold

#[must_use = "streams do nothing unless polled"]
pub struct StreamFold<S, F, Fut, T> where
    Fut: IntoActorFuture,  { /* fields omitted */ }

A future used to collect all the results of a stream into one generic type.

This future is returned by the ActorStream::fold method.

Trait Implementations

impl<S: Debug, F: Debug, Fut: Debug, T: Debug> Debug for StreamFold<S, F, Fut, T> where
    Fut: IntoActorFuture,
    Fut::Future: Debug, 

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<S, F, Fut, T> ActorFuture for StreamFold<S, F, Fut, T> where
    S: ActorStream,
    F: FnMut(T, S::Item, &mut S::Actor, &mut <S::Actor as Actor>::Context) -> Fut,
    Fut: IntoActorFuture<Item = T, Actor = S::Actor>,
    S::Error: From<Fut::Error>, 

type Item = T

The type of value that this future will resolved with if it is successful.

type Error = S::Error

The type of error that this future will resolve with if it fails in a normal fashion.

type Actor = S::Actor

The actor within which this future runs

fn poll(
    &mut self,
    act: &mut S::Actor,
    ctx: &mut <S::Actor as Actor>::Context
) -> Poll<T, S::Error>

fn map<F, U>(self, f: F) -> Map<Self, F> where
    F: FnOnce(Self::Item, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> U,
    Self: Sized, 

Map this future's result to a different type, returning a new future of the resulting type.

fn map_err<F, E>(self, f: F) -> MapErr<Self, F> where
    F: FnOnce(Self::Error, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> E,
    Self: Sized, 

Map this future's error to a different error, returning a new future.

fn drop_err(self) -> DropErr<Self> where
    Self: Sized, 

Drop this future's error, returning a new future.

fn then<F, B>(self, f: F) -> Then<Self, B, F> where
    F: FnOnce(Result<Self::Item, Self::Error>, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> B,
    B: IntoActorFuture<Actor = Self::Actor>,
    Self: Sized, 

Chain on a computation for when a future finished, passing the result of the future to the provided closure f.

fn and_then<F, B>(self, f: F) -> AndThen<Self, B, F> where
    F: FnOnce(Self::Item, &mut Self::Actor, &mut <Self::Actor as Actor>::Context) -> B,
    B: IntoActorFuture<Error = Self::Error, Actor = Self::Actor>,
    Self: Sized, 

Execute another future after this one has resolved successfully.