Struct futures_util::future::FlattenStream

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pub struct FlattenStream<F> where
    F: Future,  { /* private fields */ }

Expand description

Stream for the flatten_stream method.

Trait Implementations

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impl<F> Debug for FlattenStream<F> where
Flatten<F, <F as Future>::Output>: Debug,
F: Future,

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

Formats the value using the given formatter. Read more

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impl<F> FusedStream for FlattenStream<F> where
Flatten<F, <F as Future>::Output>: FusedStream,
F: Future,

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fn is_terminated(&self) -> bool

Returns true if the stream should no longer be polled.

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impl<F> Stream for FlattenStream<F> where
Flatten<F, <F as Future>::Output>: Stream,
F: Future,

type Item = <Flatten<F, <F as Future>::Output> as Stream>::Item

Values yielded by the stream.

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fn poll_next(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>

Attempt to pull out the next value of this stream, registering the current task for wakeup if the value is not yet available, and returning None if the stream is exhausted. Read more

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fn size_hint(&self) -> (usize, Option<usize>)

Returns the bounds on the remaining length of the stream. Read more

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impl<'pin, F> Unpin for FlattenStream<F> where
Origin<'__pin, F>: Unpin,
F: Future,

Auto Trait Implementations

impl<F> RefUnwindSafe for FlattenStream<F> where
F: RefUnwindSafe,
<F as Future>::Output: RefUnwindSafe,

impl<F> Send for FlattenStream<F> where
F: Send,
<F as Future>::Output: Send,

impl<F> Sync for FlattenStream<F> where
F: Sync,
<F as Future>::Output: Sync,

impl<F> UnwindSafe for FlattenStream<F> where
F: UnwindSafe,
<F as Future>::Output: UnwindSafe,

Blanket Implementations

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

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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impl<S, T, E> TryStream for S where
S: Stream<Item = Result<T, E>> + ?Sized,

type Ok = T

The type of successful values yielded by this future

type Error = E

The type of failures yielded by this future

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pub fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

Poll this TryStream as if it were a Stream. Read more

Struct futures_util::future::FlattenStream

Trait Implementations

impl<F> Debug for FlattenStream<F> where
Flatten<F, <F as Future>::Output>: Debug,
F: Future,

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

impl<F> FusedStream for FlattenStream<F> where
Flatten<F, <F as Future>::Output>: FusedStream,
F: Future,

fn is_terminated(&self) -> bool

impl<F> Stream for FlattenStream<F> where
Flatten<F, <F as Future>::Output>: Stream,
F: Future,

type Item = <Flatten<F, <F as Future>::Output> as Stream>::Item

fn poll_next(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>

fn size_hint(&self) -> (usize, Option<usize>)

impl<'pin, F> Unpin for FlattenStream<F> where
Origin<'__pin, F>: Unpin,
F: Future,

Auto Trait Implementations

impl<F> RefUnwindSafe for FlattenStream<F> where
F: RefUnwindSafe,
<F as Future>::Output: RefUnwindSafe,

impl<F> Send for FlattenStream<F> where
F: Send,
<F as Future>::Output: Send,

impl<F> Sync for FlattenStream<F> where
F: Sync,
<F as Future>::Output: Sync,

impl<F> UnwindSafe for FlattenStream<F> where
F: UnwindSafe,
<F as Future>::Output: UnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

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

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where
U: From<T>,

pub fn into(self) -> U

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

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

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

impl<S, T, E> TryStream for S where
S: Stream<Item = Result<T, E>> + ?Sized,

type Ok = T

type Error = E

pub fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

Struct futures_util::future::FlattenStream

Trait Implementations

impl<F> Debug for FlattenStream<F> where Flatten<F, <F as Future>::Output>: Debug, F: Future,

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

impl<F> FusedStream for FlattenStream<F> where Flatten<F, <F as Future>::Output>: FusedStream, F: Future,

fn is_terminated(&self) -> bool

impl<F> Stream for FlattenStream<F> where Flatten<F, <F as Future>::Output>: Stream, F: Future,

type Item = <Flatten<F, <F as Future>::Output> as Stream>::Item

fn poll_next( self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>

fn size_hint(&self) -> (usize, Option<usize>)

impl<'__pin, F> Unpin for FlattenStream<F> where __Origin<'__pin, F>: Unpin, F: Future,

Auto Trait Implementations

impl<F> RefUnwindSafe for FlattenStream<F> where F: RefUnwindSafe, <F as Future>::Output: RefUnwindSafe,

impl<F> Send for FlattenStream<F> where F: Send, <F as Future>::Output: Send,

impl<F> Sync for FlattenStream<F> where F: Sync, <F as Future>::Output: Sync,

impl<F> UnwindSafe for FlattenStream<F> where F: UnwindSafe, <F as Future>::Output: UnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

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

impl<S, T, E> TryStream for S where S: Stream<Item = Result<T, E>> + ?Sized,

type Ok = T

type Error = E

pub fn try_poll_next( self: Pin<&mut S>, cx: &mut Context<'_>) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

impl<F> Debug for FlattenStream<F> where
Flatten<F, <F as Future>::Output>: Debug,
F: Future,

impl<F> FusedStream for FlattenStream<F> where
Flatten<F, <F as Future>::Output>: FusedStream,
F: Future,

impl<F> Stream for FlattenStream<F> where
Flatten<F, <F as Future>::Output>: Stream,
F: Future,

fn poll_next(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>

impl<'pin, F> Unpin for FlattenStream<F> where
Origin<'__pin, F>: Unpin,
F: Future,

impl<F> RefUnwindSafe for FlattenStream<F> where
F: RefUnwindSafe,
<F as Future>::Output: RefUnwindSafe,

impl<F> Send for FlattenStream<F> where
F: Send,
<F as Future>::Output: Send,

impl<F> Sync for FlattenStream<F> where
F: Sync,
<F as Future>::Output: Sync,

impl<F> UnwindSafe for FlattenStream<F> where
F: UnwindSafe,
<F as Future>::Output: UnwindSafe,

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<S, T, E> TryStream for S where
S: Stream<Item = Result<T, E>> + ?Sized,

pub fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>