async_iter_ext::combinator::map

Struct AsyncMap

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pub struct AsyncMap<I, F> { /* private fields */ }

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impl<B, I, F, Fut> AsyncIterator for AsyncMap<I, F>
where I: AsyncIterator, F: FnMut(I::Item) -> Fut + Send, Fut: Future<Output = B> + Send,

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type Item = B

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async fn next_async(&mut self) -> Option<Self::Item>

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

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fn sync_iter(&mut self) -> impl Future<Output = SyncIter<IntoIter<Self::Item>>>
where Self: Sized,

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fn async_collect<B>(self) -> impl Future<Output = B>
where Self: Sized, B: FromIterator<Self::Item>,

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impl<I, F> Debug for AsyncMap<I, F>
where I: AsyncIterator + Debug,

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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<B, I, F, Fut> Future for AsyncMap<I, F>
where I: AsyncIterator + Unpin, F: FnMut(I::Item) -> Fut + Unpin + Send, Fut: Future<Output = B> + Send,

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type Output = SyncIter<IntoIter<B>>

The type of value produced on completion.
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fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>

Attempts to resolve the future to a final value, registering the current task for wakeup if the value is not yet available. Read more
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impl<B, I, F, Fut> PollSyncIter for AsyncMap<I, F>
where I: AsyncIterator + Unpin, F: FnMut(I::Item) -> Fut + Unpin + Send, Fut: Future<Output = B> + Send,

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fn poll_sync_iter( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<SyncIter<IntoIter<Self::Item>>>
where Self: Sized + Unpin,

Auto Trait Implementations§

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impl<I, F> Freeze for AsyncMap<I, F>
where I: Freeze, F: Freeze,

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impl<I, F> RefUnwindSafe for AsyncMap<I, F>
where I: RefUnwindSafe, F: RefUnwindSafe,

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impl<I, F> Send for AsyncMap<I, F>
where I: Send, F: Send,

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impl<I, F> Sync for AsyncMap<I, F>
where I: Sync, F: Sync,

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impl<I, F> Unpin for AsyncMap<I, F>
where I: Unpin, F: Unpin,

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impl<I, F> UnwindSafe for AsyncMap<I, F>
where I: UnwindSafe, F: UnwindSafe,

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> AsyncIterTools for T
where T: AsyncIterator + ?Sized,

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fn for_each_async<F, Fut>(self, f: F) -> impl Future<Output = ()>
where Self: Sized, F: Fn(Self::Item) -> Fut, Fut: Future<Output = ()>,

Calls an async closure on each element of an iterator Read more
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fn map_async<B, F, Fut>(self, f: F) -> AsyncMap<Self, F> ⓘ
where Self: Sized, F: Fn(Self::Item) -> Fut, Fut: Future<Output = B>,

Applies an async closure to each item of the iterator, returning a new iterator of the results of each async computation. Read more
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fn filter_async<F, Fut>(self, f: F) -> AsyncFilter<Self, F> ⓘ
where Self: Sized, F: Fn(Self::Item) -> Fut, Fut: Future<Output = bool>, Self::Item: Clone,

Filters the items of an iterator using an asynchronous predicate. 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<F> IntoFuture for F
where F: Future,

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type Output = <F as Future>::Output

The output that the future will produce on completion.
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type IntoFuture = F

Which kind of future are we turning this into?
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fn into_future(self) -> <F as IntoFuture>::IntoFuture

Creates a future from a value. Read more
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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.