Struct async_rx::DedupByKey

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pub struct DedupByKey<S, T, F> { /* private fields */ }
Expand description

Stream adapter produced by StreamExt::dedup_by_key.

Trait Implementations§

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impl<S, T, F> Stream for DedupByKey<S, T, F>where S: Stream, T: PartialEq, F: FnMut(&S::Item) -> T,

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type Item = <S as Stream>::Item

Values yielded by the stream.
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fn poll_next( self: Pin<&mut Self>, cx: &mut Context<'_> ) -> Poll<Option<S::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, S, T, F> Unpin for DedupByKey<S, T, F>where __Origin<'__pin, S, T, F>: Unpin,

Auto Trait Implementations§

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impl<S, T, F> RefUnwindSafe for DedupByKey<S, T, F>where F: RefUnwindSafe, S: RefUnwindSafe, T: RefUnwindSafe,

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impl<S, T, F> Send for DedupByKey<S, T, F>where F: Send, S: Send, T: Send,

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impl<S, T, F> Sync for DedupByKey<S, T, F>where F: Sync, S: Sync, T: Sync,

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impl<S, T, F> UnwindSafe for DedupByKey<S, T, F>where F: UnwindSafe, S: UnwindSafe, T: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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 Twhere 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<S> StreamExt for Swhere S: Stream,

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fn dedup(self) -> Dedup<Self>where Self::Item: Clone + PartialEq,

Deduplicate consecutive identical items. Read more
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fn dedup_by_key<T, F>(self, key_fn: F) -> DedupByKey<Self, T, F>where T: PartialEq, F: FnMut(&Self::Item) -> T,

Deduplicate consecutive items that the given function produces the same key for.
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fn batch_with<S>(self, batch_done_stream: S) -> BatchWith<Self, S>where S: Stream<Item = ()>,

Buffer the items from self until batch_done_stream produces a value, and return all buffered values in one batch. Read more
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impl<T, U> TryFrom<U> for Twhere 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 Twhere 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 Swhere 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