async_stream_lite

Struct AsyncStream

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pub struct AsyncStream<T, U> { /* private fields */ }
Expand description

A Stream created from an asynchronous generator-like function.

To create an AsyncStream, use the async_stream function.

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impl<T, U> FusedStream for AsyncStream<T, U>
where U: Future<Output = ()>,

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fn is_terminated(&self) -> bool

Returns true if the stream should no longer be polled.
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impl<T, U> Stream for AsyncStream<T, U>
where U: Future<Output = ()>,

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type Item = T

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, T, U> Unpin for AsyncStream<T, U>
where PinnedFieldsOf<__Origin<'__pin, T, U>>: Unpin,

Auto Trait Implementations§

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impl<T, U> Freeze for AsyncStream<T, U>
where U: Freeze,

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impl<T, U> !RefUnwindSafe for AsyncStream<T, U>

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impl<T, U> Send for AsyncStream<T, U>
where U: Send, T: Send,

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impl<T, U> Sync for AsyncStream<T, U>
where U: Sync, T: Send,

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impl<T, U> !UnwindSafe for AsyncStream<T, U>

Blanket Implementations§

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

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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,

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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,

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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

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fn from(t: T) -> T

Returns the argument unchanged.

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

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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

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type Ok = T

The type of successful values yielded by this future
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type Error = E

The type of failures yielded by this future
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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