Struct futures_util::stream::Chain

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pub struct Chain<St1, St2> { /* private fields */ }

Expand description

Stream for the chain method.

Trait Implementations

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impl<St1: Debug, St2: Debug> Debug for Chain<St1, St2>

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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<St1, St2> FusedStream for Chain<St1, St2> where
St1: Stream,
St2: FusedStream<Item = St1::Item>,

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fn is_terminated(&self) -> bool

Returns true if the stream should no longer be polled.

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impl<St1, St2> Stream for Chain<St1, St2> where
St1: Stream,
St2: Stream<Item = St1::Item>,

type Item = St1::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, St1, St2> Unpin for Chain<St1, St2> where
Origin<'__pin, St1, St2>: Unpin,

Auto Trait Implementations

impl<St1, St2> RefUnwindSafe for Chain<St1, St2> where
St1: RefUnwindSafe,
St2: RefUnwindSafe,

impl<St1, St2> Send for Chain<St1, St2> where
St1: Send,
St2: Send,

impl<St1, St2> Sync for Chain<St1, St2> where
St1: Sync,
St2: Sync,

impl<St1, St2> UnwindSafe for Chain<St1, St2> where
St1: UnwindSafe,
St2: 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::stream::Chain

Trait Implementations

impl<St1: Debug, St2: Debug> Debug for Chain<St1, St2>

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

impl<St1, St2> FusedStream for Chain<St1, St2> where
St1: Stream,
St2: FusedStream<Item = St1::Item>,

fn is_terminated(&self) -> bool

impl<St1, St2> Stream for Chain<St1, St2> where
St1: Stream,
St2: Stream<Item = St1::Item>,

type Item = St1::Item

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

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

impl<'pin, St1, St2> Unpin for Chain<St1, St2> where
Origin<'__pin, St1, St2>: Unpin,

Auto Trait Implementations

impl<St1, St2> RefUnwindSafe for Chain<St1, St2> where
St1: RefUnwindSafe,
St2: RefUnwindSafe,

impl<St1, St2> Send for Chain<St1, St2> where
St1: Send,
St2: Send,

impl<St1, St2> Sync for Chain<St1, St2> where
St1: Sync,
St2: Sync,

impl<St1, St2> UnwindSafe for Chain<St1, St2> where
St1: UnwindSafe,
St2: 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::stream::Chain

Trait Implementations

impl<St1: Debug, St2: Debug> Debug for Chain<St1, St2>

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

impl<St1, St2> FusedStream for Chain<St1, St2> where St1: Stream, St2: FusedStream<Item = St1::Item>,

fn is_terminated(&self) -> bool

impl<St1, St2> Stream for Chain<St1, St2> where St1: Stream, St2: Stream<Item = St1::Item>,

type Item = St1::Item

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

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

impl<'__pin, St1, St2> Unpin for Chain<St1, St2> where __Origin<'__pin, St1, St2>: Unpin,

Auto Trait Implementations

impl<St1, St2> RefUnwindSafe for Chain<St1, St2> where St1: RefUnwindSafe, St2: RefUnwindSafe,

impl<St1, St2> Send for Chain<St1, St2> where St1: Send, St2: Send,

impl<St1, St2> Sync for Chain<St1, St2> where St1: Sync, St2: Sync,

impl<St1, St2> UnwindSafe for Chain<St1, St2> where St1: UnwindSafe, St2: 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<St1, St2> FusedStream for Chain<St1, St2> where
St1: Stream,
St2: FusedStream<Item = St1::Item>,

impl<St1, St2> Stream for Chain<St1, St2> where
St1: Stream,
St2: Stream<Item = St1::Item>,

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

impl<'pin, St1, St2> Unpin for Chain<St1, St2> where
Origin<'__pin, St1, St2>: Unpin,

impl<St1, St2> RefUnwindSafe for Chain<St1, St2> where
St1: RefUnwindSafe,
St2: RefUnwindSafe,

impl<St1, St2> Send for Chain<St1, St2> where
St1: Send,
St2: Send,

impl<St1, St2> Sync for Chain<St1, St2> where
St1: Sync,
St2: Sync,

impl<St1, St2> UnwindSafe for Chain<St1, St2> where
St1: UnwindSafe,
St2: 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>>>