Struct async_fs::ReadDir

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pub struct ReadDir(_);

Expand description

A stream of entries in a directory.

This stream is returned by read_dir() and yields items of type io::Result<DirEntry>. Each DirEntry can then retrieve information like entry’s path or metadata.

Trait Implementations

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impl Debug for ReadDir

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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 Stream for ReadDir

type Item = Result<DirEntry>

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

Auto Trait Implementations

impl !RefUnwindSafe for ReadDir

impl Send for ReadDir

impl !Sync for ReadDir

impl Unpin for ReadDir

impl !UnwindSafe for ReadDir

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,

const: unstable · source

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

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

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

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 S where
S: Stream + ?Sized,

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

A convenience for calling Stream::poll_next() on !Unpin types.

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fn next(&mut self) -> NextFuture<'_, Self> where
Self: Unpin,

Retrieves the next item in the stream. Read more

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fn try_next<T, E>(&mut self) -> TryNextFuture<'_, Self> where
Self: Stream<Item = Result<T, E>> + Unpin,

Retrieves the next item in the stream. Read more

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fn count(self) -> CountFuture<Self>

Counts the number of items in the stream. Read more

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fn map<T, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> T,

Maps items of the stream to new values using a closure. Read more

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fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where
U: Stream,
F: FnMut(Self::Item) -> U,

Maps items to streams and then concatenates them. Read more

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fn flatten(self) -> Flatten<Self> where
Self::Item: Stream,

Concatenates inner streams. Read more

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fn then<F, Fut>(self, f: F) -> Then<Self, F, Fut> where
F: FnMut(Self::Item) -> Fut,
Fut: Future,

Maps items of the stream to new values using an async closure. Read more

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fn filter(self, predicate: P) -> Filter<Self, P> where
P: FnMut(&Self::Item) -> bool,

Keeps items of the stream for which predicate returns true. Read more

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fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<T>,

Filters and maps items of the stream using a closure. Read more

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fn take(self, n: usize) -> Take<Self>

Takes only the first n items of the stream. Read more

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fn take_while(self, predicate: P) -> TakeWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,

Takes items while predicate returns true. Read more

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fn skip(self, n: usize) -> Skip<Self>

Skips the first n items of the stream. Read more

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fn skip_while(self, predicate: P) -> SkipWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,

Skips items while predicate returns true. Read more

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fn step_by(self, step: usize) -> StepBy<Self>

Yields every stepth item. Read more

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fn chain(self, other: U) -> Chain<Self, U> where
U: Stream<Item = Self::Item>,

Appends another stream to the end of this one. Read more

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fn cloned<'a, T>(self) -> Cloned<Self> where
Self: Stream<Item = &'a T>,
T: 'a + Clone,

Clones all items. Read more

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fn copied<'a, T>(self) -> Copied<Self> where
Self: Stream<Item = &'a T>,
T: 'a + Copy,

Copies all items. Read more

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fn collect<C>(self) -> CollectFuture<Self, C> where
C: Default + Extend<Self::Item>,

Collects all items in the stream into a collection. Read more

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fn try_collect<T, E, C>(self) -> TryCollectFuture<Self, C> where
Self: Stream<Item = Result<T, E>>,
C: Default + Extend<T>,

Collects all items in the fallible stream into a collection. Read more

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fn partition<B, P>(self, predicate: P) -> PartitionFuture<Self, P, B> where
B: Default + Extend<Self::Item>,
P: FnMut(&Self::Item) -> bool,

Partitions items into those for which predicate is true and those for which it is false, and then collects them into two collections. Read more

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fn fold<T, F>(self, init: T, f: F) -> FoldFuture<Self, F, T> where
F: FnMut(T, Self::Item) -> T,

Accumulates a computation over the stream. Read more

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fn try_fold<T, E, F, B>(
 &mut self,
 init: B,
 f: F
) -> TryFoldFuture<'_, Self, F, B> where
 Self: Stream<Item = Result<T, E>> + Unpin,
 F: FnMut(B, T) -> Result<B, E>,

Accumulates a fallible computation over the stream. Read more

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fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F> where
F: FnMut(&mut St, Self::Item) -> Option,

Maps items of the stream to new values using a state value and a closure. Read more

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fn fuse(self) -> Fuse<Self>

Fuses the stream so that it stops yielding items after the first None. Read more

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fn cycle(self) -> Cycle<Self> where
Self: Clone,

Repeats the stream from beginning to end, forever. Read more

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fn enumerate(self) -> Enumerate<Self>

Enumerates items, mapping them to (index, item). Read more

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fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item),

Calls a closure on each item and passes it on. Read more

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fn nth(&mut self, n: usize) -> NthFuture<'_, Self> where
Self: Unpin,

Gets the nth item of the stream. Read more

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fn last(self) -> LastFuture<Self>

Returns the last item in the stream. Read more

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fn find(&mut self, predicate: P) -> FindFuture<'_, Self, P> where
Self: Unpin,
P: FnMut(&Self::Item) -> bool,

Finds the first item of the stream for which predicate returns true. Read more

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fn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F> where
Self: Unpin,
F: FnMut(Self::Item) -> Option,

Applies a closure to items in the stream and returns the first Some result. Read more

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fn position(&mut self, predicate: P) -> PositionFuture<'_, Self, P> where
Self: Unpin,
P: FnMut(Self::Item) -> bool,

Finds the index of the first item of the stream for which predicate returns true. Read more

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fn all(&mut self, predicate: P) -> AllFuture<'_, Self, P> where
Self: Unpin,
P: FnMut(Self::Item) -> bool,

Tests if predicate returns true for all items in the stream. Read more

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fn any(&mut self, predicate: P) -> AnyFuture<'_, Self, P> where
Self: Unpin,
P: FnMut(Self::Item) -> bool,

Tests if predicate returns true for any item in the stream. Read more

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fn for_each<F>(self, f: F) -> ForEachFuture<Self, F> where
F: FnMut(Self::Item),

Calls a closure on each item of the stream. Read more

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fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F> where
Self: Unpin,
F: FnMut(Self::Item) -> Result<(), E>,

Calls a fallible closure on each item of the stream, stopping on first error. Read more

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fn zip(self, other: U) -> Zip<Self, U> where
U: Stream,

Zips up two streams into a single stream of pairs. Read more

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fn unzip<A, B, FromA, FromB>(self) -> UnzipFuture<Self, FromA, FromB> where
 FromA: Default + Extend<A>,
 FromB: Default + Extend,
 Self: Stream<Item = (A, B)>,

Collects a stream of pairs into a pair of collections. Read more

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fn or<S>(self, other: S) -> Or<Self, S> where
S: Stream<Item = Self::Item>,

Merges with other stream, preferring items from self whenever both streams are ready. Read more

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fn race<S>(self, other: S) -> Race<Self, S> where
S: Stream<Item = Self::Item>,

Merges with other stream, with no preference for either stream when both are ready. Read more

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fn boxed<'a>(
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>> where
Self: 'a + Send,

Boxes the stream and changes its type to dyn Stream + Send + 'a. Read more

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fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>> where
Self: 'a,

Boxes the stream and changes its type to dyn Stream + 'a. Read more

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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

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

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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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 async_fs::ReadDir

Trait Implementations

impl Debug for ReadDir

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

impl Stream for ReadDir

type Item = Result<DirEntry>

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

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

Auto Trait Implementations

impl !RefUnwindSafe for ReadDir

impl Send for ReadDir

impl !Sync for ReadDir

impl Unpin for ReadDir

impl !UnwindSafe for ReadDir

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<S> StreamExt for S where S: Stream + ?Sized,

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

fn next(&mut self) -> NextFuture<'_, Self> where Self: Unpin,

fn try_next<T, E>(&mut self) -> TryNextFuture<'_, Self> where Self: Stream<Item = Result<T, E>> + Unpin,

fn count(self) -> CountFuture<Self>

fn map<T, F>(self, f: F) -> Map<Self, F> where F: FnMut(Self::Item) -> T,

fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where U: Stream, F: FnMut(Self::Item) -> U,

fn flatten(self) -> Flatten<Self> where Self::Item: Stream,

fn then<F, Fut>(self, f: F) -> Then<Self, F, Fut> where F: FnMut(Self::Item) -> Fut, Fut: Future,

fn filter<P>(self, predicate: P) -> Filter<Self, P> where P: FnMut(&Self::Item) -> bool,

fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F> where F: FnMut(Self::Item) -> Option<T>,

fn take(self, n: usize) -> Take<Self>

fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P> where P: FnMut(&Self::Item) -> bool,

fn skip(self, n: usize) -> Skip<Self>

fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P> where P: FnMut(&Self::Item) -> bool,

fn step_by(self, step: usize) -> StepBy<Self>

fn chain<U>(self, other: U) -> Chain<Self, U> where U: Stream<Item = Self::Item>,

fn cloned<'a, T>(self) -> Cloned<Self> where Self: Stream<Item = &'a T>, T: 'a + Clone,

fn copied<'a, T>(self) -> Copied<Self> where Self: Stream<Item = &'a T>, T: 'a + Copy,

fn collect<C>(self) -> CollectFuture<Self, C> where C: Default + Extend<Self::Item>,

fn try_collect<T, E, C>(self) -> TryCollectFuture<Self, C> where Self: Stream<Item = Result<T, E>>, C: Default + Extend<T>,

fn partition<B, P>(self, predicate: P) -> PartitionFuture<Self, P, B> where B: Default + Extend<Self::Item>, P: FnMut(&Self::Item) -> bool,

fn fold<T, F>(self, init: T, f: F) -> FoldFuture<Self, F, T> where F: FnMut(T, Self::Item) -> T,

fn try_fold<T, E, F, B>( &mut self, init: B, f: F) -> TryFoldFuture<'_, Self, F, B> where Self: Stream<Item = Result<T, E>> + Unpin, F: FnMut(B, T) -> Result<B, E>,

fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F> where F: FnMut(&mut St, Self::Item) -> Option<B>,

fn fuse(self) -> Fuse<Self>

fn cycle(self) -> Cycle<Self> where Self: Clone,

fn enumerate(self) -> Enumerate<Self>

fn inspect<F>(self, f: F) -> Inspect<Self, F> where F: FnMut(&Self::Item),

fn nth(&mut self, n: usize) -> NthFuture<'_, Self> where Self: Unpin,

fn last(self) -> LastFuture<Self>

fn find<P>(&mut self, predicate: P) -> FindFuture<'_, Self, P> where Self: Unpin, P: FnMut(&Self::Item) -> bool,

fn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F> where Self: Unpin, F: FnMut(Self::Item) -> Option<B>,

fn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P> where Self: Unpin, P: FnMut(Self::Item) -> bool,

fn all<P>(&mut self, predicate: P) -> AllFuture<'_, Self, P> where Self: Unpin, P: FnMut(Self::Item) -> bool,

fn any<P>(&mut self, predicate: P) -> AnyFuture<'_, Self, P> where Self: Unpin, P: FnMut(Self::Item) -> bool,

fn for_each<F>(self, f: F) -> ForEachFuture<Self, F> where F: FnMut(Self::Item),

fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F> where Self: Unpin, F: FnMut(Self::Item) -> Result<(), E>,

fn zip<U>(self, other: U) -> Zip<Self, U> where U: Stream,

fn unzip<A, B, FromA, FromB>(self) -> UnzipFuture<Self, FromA, FromB> where FromA: Default + Extend<A>, FromB: Default + Extend<B>, Self: Stream<Item = (A, B)>,

fn or<S>(self, other: S) -> Or<Self, S> where S: Stream<Item = Self::Item>,

fn race<S>(self, other: S) -> Race<Self, S> where S: Stream<Item = Self::Item>,

fn boxed<'a>( self) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>> where Self: 'a + Send,

fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>> where Self: 'a,

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

type Error = Infallible

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

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

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

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

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<S> StreamExt for S where
S: Stream + ?Sized,

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

fn next(&mut self) -> NextFuture<'_, Self> where
Self: Unpin,

fn try_next<T, E>(&mut self) -> TryNextFuture<'_, Self> where
Self: Stream<Item = Result<T, E>> + Unpin,

fn map<T, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> T,

fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where
U: Stream,
F: FnMut(Self::Item) -> U,

fn flatten(self) -> Flatten<Self> where
Self::Item: Stream,

fn then<F, Fut>(self, f: F) -> Then<Self, F, Fut> where
F: FnMut(Self::Item) -> Fut,
Fut: Future,

fn filter<P>(self, predicate: P) -> Filter<Self, P> where
P: FnMut(&Self::Item) -> bool,

fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<T>,

fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,

fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,

fn chain<U>(self, other: U) -> Chain<Self, U> where
U: Stream<Item = Self::Item>,

fn cloned<'a, T>(self) -> Cloned<Self> where
Self: Stream<Item = &'a T>,
T: 'a + Clone,

fn copied<'a, T>(self) -> Copied<Self> where
Self: Stream<Item = &'a T>,
T: 'a + Copy,

fn collect<C>(self) -> CollectFuture<Self, C> where
C: Default + Extend<Self::Item>,

fn try_collect<T, E, C>(self) -> TryCollectFuture<Self, C> where
Self: Stream<Item = Result<T, E>>,
C: Default + Extend<T>,

fn partition<B, P>(self, predicate: P) -> PartitionFuture<Self, P, B> where
B: Default + Extend<Self::Item>,
P: FnMut(&Self::Item) -> bool,

fn fold<T, F>(self, init: T, f: F) -> FoldFuture<Self, F, T> where
F: FnMut(T, Self::Item) -> T,

fn try_fold<T, E, F, B>(
&mut self,
init: B,
f: F
) -> TryFoldFuture<'_, Self, F, B> where
Self: Stream<Item = Result<T, E>> + Unpin,
F: FnMut(B, T) -> Result<B, E>,

fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F> where
F: FnMut(&mut St, Self::Item) -> Option<B>,

fn cycle(self) -> Cycle<Self> where
Self: Clone,

fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item),

fn nth(&mut self, n: usize) -> NthFuture<'_, Self> where
Self: Unpin,

fn find<P>(&mut self, predicate: P) -> FindFuture<'_, Self, P> where
Self: Unpin,
P: FnMut(&Self::Item) -> bool,

fn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F> where
Self: Unpin,
F: FnMut(Self::Item) -> Option<B>,

fn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P> where
Self: Unpin,
P: FnMut(Self::Item) -> bool,

fn all<P>(&mut self, predicate: P) -> AllFuture<'_, Self, P> where
Self: Unpin,
P: FnMut(Self::Item) -> bool,

fn any<P>(&mut self, predicate: P) -> AnyFuture<'_, Self, P> where
Self: Unpin,
P: FnMut(Self::Item) -> bool,

fn for_each<F>(self, f: F) -> ForEachFuture<Self, F> where
F: FnMut(Self::Item),

fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F> where
Self: Unpin,
F: FnMut(Self::Item) -> Result<(), E>,

fn zip<U>(self, other: U) -> Zip<Self, U> where
U: Stream,

fn unzip<A, B, FromA, FromB>(self) -> UnzipFuture<Self, FromA, FromB> where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Stream<Item = (A, B)>,

fn or<S>(self, other: S) -> Or<Self, S> where
S: Stream<Item = Self::Item>,

fn race<S>(self, other: S) -> Race<Self, S> where
S: Stream<Item = Self::Item>,

fn boxed<'a>(
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>> where
Self: 'a + Send,

fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>> where
Self: 'a,

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,

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