pub struct WalkTree { /* private fields */ }
Available on crate feature
walk
only.Expand description
A FileIterator
over files in a directory tree.
This iterator is constructed from Path
s via extension functions in PathExt
, such as
PathExt::walk
.
Examples
use std::path::Path;
use wax::walk::{Entry, PathExt};
for entry in Path::new(".").walk() {
let entry = entry.unwrap();
println!("{:?}", entry.path());
}
Trait Implementations§
source§impl Iterator for WalkTree
impl Iterator for WalkTree
source§fn next(&mut self) -> Option<Self::Item>
fn next(&mut self) -> Option<Self::Item>
Advances the iterator and returns the next value. Read more
source§fn next_chunk<const N: usize>(
&mut self
) -> Result<[Self::Item; N], IntoIter<Self::Item, N>>where
Self: Sized,
fn next_chunk<const N: usize>( &mut self ) -> Result<[Self::Item; N], IntoIter<Self::Item, N>>where Self: Sized,
🔬This is a nightly-only experimental API. (
iter_next_chunk
)Advances the iterator and returns an array containing the next
N
values. Read more1.0.0 · source§fn size_hint(&self) -> (usize, Option<usize>)
fn size_hint(&self) -> (usize, Option<usize>)
Returns the bounds on the remaining length of the iterator. Read more
1.0.0 · source§fn count(self) -> usizewhere
Self: Sized,
fn count(self) -> usizewhere Self: Sized,
Consumes the iterator, counting the number of iterations and returning it. Read more
1.0.0 · source§fn last(self) -> Option<Self::Item>where
Self: Sized,
fn last(self) -> Option<Self::Item>where Self: Sized,
Consumes the iterator, returning the last element. Read more
source§fn advance_by(&mut self, n: usize) -> Result<(), NonZeroUsize>
fn advance_by(&mut self, n: usize) -> Result<(), NonZeroUsize>
🔬This is a nightly-only experimental API. (
iter_advance_by
)Advances the iterator by
n
elements. Read more1.0.0 · source§fn nth(&mut self, n: usize) -> Option<Self::Item>
fn nth(&mut self, n: usize) -> Option<Self::Item>
Returns the
n
th element of the iterator. Read more1.28.0 · source§fn step_by(self, step: usize) -> StepBy<Self>where
Self: Sized,
fn step_by(self, step: usize) -> StepBy<Self>where Self: Sized,
Creates an iterator starting at the same point, but stepping by
the given amount at each iteration. Read more
1.0.0 · source§fn chain<U>(self, other: U) -> Chain<Self, <U as IntoIterator>::IntoIter>where
Self: Sized,
U: IntoIterator<Item = Self::Item>,
fn chain<U>(self, other: U) -> Chain<Self, <U as IntoIterator>::IntoIter>where Self: Sized, U: IntoIterator<Item = Self::Item>,
Takes two iterators and creates a new iterator over both in sequence. Read more
1.0.0 · source§fn zip<U>(self, other: U) -> Zip<Self, <U as IntoIterator>::IntoIter>where
Self: Sized,
U: IntoIterator,
fn zip<U>(self, other: U) -> Zip<Self, <U as IntoIterator>::IntoIter>where Self: Sized, U: IntoIterator,
‘Zips up’ two iterators into a single iterator of pairs. Read more
source§fn intersperse_with<G>(self, separator: G) -> IntersperseWith<Self, G>where
Self: Sized,
G: FnMut() -> Self::Item,
fn intersperse_with<G>(self, separator: G) -> IntersperseWith<Self, G>where Self: Sized, G: FnMut() -> Self::Item,
🔬This is a nightly-only experimental API. (
iter_intersperse
)Creates a new iterator which places an item generated by
separator
between adjacent items of the original iterator. Read more1.0.0 · source§fn map<B, F>(self, f: F) -> Map<Self, F>where
Self: Sized,
F: FnMut(Self::Item) -> B,
fn map<B, F>(self, f: F) -> Map<Self, F>where Self: Sized, F: FnMut(Self::Item) -> B,
Takes a closure and creates an iterator which calls that closure on each
element. Read more
1.21.0 · source§fn for_each<F>(self, f: F)where
Self: Sized,
F: FnMut(Self::Item),
fn for_each<F>(self, f: F)where Self: Sized, F: FnMut(Self::Item),
Calls a closure on each element of an iterator. Read more
1.0.0 · source§fn filter<P>(self, predicate: P) -> Filter<Self, P>where
Self: Sized,
P: FnMut(&Self::Item) -> bool,
fn filter<P>(self, predicate: P) -> Filter<Self, P>where Self: Sized, P: FnMut(&Self::Item) -> bool,
Creates an iterator which uses a closure to determine if an element
should be yielded. Read more
1.0.0 · source§fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>where
Self: Sized,
F: FnMut(Self::Item) -> Option<B>,
fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>where Self: Sized, F: FnMut(Self::Item) -> Option<B>,
Creates an iterator that both filters and maps. Read more
1.0.0 · source§fn enumerate(self) -> Enumerate<Self>where
Self: Sized,
fn enumerate(self) -> Enumerate<Self>where Self: Sized,
Creates an iterator which gives the current iteration count as well as
the next value. Read more
1.0.0 · source§fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>where
Self: Sized,
P: FnMut(&Self::Item) -> bool,
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>where Self: Sized, P: FnMut(&Self::Item) -> bool,
1.0.0 · source§fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>where
Self: Sized,
P: FnMut(&Self::Item) -> bool,
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>where Self: Sized, P: FnMut(&Self::Item) -> bool,
Creates an iterator that yields elements based on a predicate. Read more
1.57.0 · source§fn map_while<B, P>(self, predicate: P) -> MapWhile<Self, P>where
Self: Sized,
P: FnMut(Self::Item) -> Option<B>,
fn map_while<B, P>(self, predicate: P) -> MapWhile<Self, P>where Self: Sized, P: FnMut(Self::Item) -> Option<B>,
Creates an iterator that both yields elements based on a predicate and maps. Read more
1.0.0 · source§fn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
fn skip(self, n: usize) -> Skip<Self>where Self: Sized,
Creates an iterator that skips the first
n
elements. Read more1.0.0 · source§fn take(self, n: usize) -> Take<Self>where
Self: Sized,
fn take(self, n: usize) -> Take<Self>where Self: Sized,
Creates an iterator that yields the first
n
elements, or fewer
if the underlying iterator ends sooner. Read more1.0.0 · source§fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>where
Self: Sized,
F: FnMut(&mut St, Self::Item) -> Option<B>,
fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>where Self: Sized, F: FnMut(&mut St, Self::Item) -> Option<B>,
1.0.0 · source§fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where
Self: Sized,
U: IntoIterator,
F: FnMut(Self::Item) -> U,
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where Self: Sized, U: IntoIterator, F: FnMut(Self::Item) -> U,
Creates an iterator that works like map, but flattens nested structure. Read more
1.29.0 · source§fn flatten(self) -> Flatten<Self>where
Self: Sized,
Self::Item: IntoIterator,
fn flatten(self) -> Flatten<Self>where Self: Sized, Self::Item: IntoIterator,
Creates an iterator that flattens nested structure. Read more
source§fn map_windows<F, R, const N: usize>(self, f: F) -> MapWindows<Self, F, N>where
Self: Sized,
F: FnMut(&[Self::Item; N]) -> R,
fn map_windows<F, R, const N: usize>(self, f: F) -> MapWindows<Self, F, N>where Self: Sized, F: FnMut(&[Self::Item; N]) -> R,
🔬This is a nightly-only experimental API. (
iter_map_windows
)Calls the given function
f
for each contiguous window of size N
over
self
and returns an iterator over the outputs of f
. Like slice::windows()
,
the windows during mapping overlap as well. Read more1.0.0 · source§fn inspect<F>(self, f: F) -> Inspect<Self, F>where
Self: Sized,
F: FnMut(&Self::Item),
fn inspect<F>(self, f: F) -> Inspect<Self, F>where Self: Sized, F: FnMut(&Self::Item),
Does something with each element of an iterator, passing the value on. Read more
1.0.0 · source§fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
fn by_ref(&mut self) -> &mut Selfwhere Self: Sized,
Borrows an iterator, rather than consuming it. Read more
1.0.0 · source§fn collect<B>(self) -> Bwhere
B: FromIterator<Self::Item>,
Self: Sized,
fn collect<B>(self) -> Bwhere B: FromIterator<Self::Item>, Self: Sized,
Transforms an iterator into a collection. Read more
source§fn try_collect<B>(
&mut self
) -> <<Self::Item as Try>::Residual as Residual<B>>::TryTypewhere
Self: Sized,
Self::Item: Try,
<Self::Item as Try>::Residual: Residual<B>,
B: FromIterator<<Self::Item as Try>::Output>,
fn try_collect<B>( &mut self ) -> <<Self::Item as Try>::Residual as Residual<B>>::TryTypewhere Self: Sized, Self::Item: Try, <Self::Item as Try>::Residual: Residual<B>, B: FromIterator<<Self::Item as Try>::Output>,
🔬This is a nightly-only experimental API. (
iterator_try_collect
)Fallibly transforms an iterator into a collection, short circuiting if
a failure is encountered. Read more
source§fn collect_into<E>(self, collection: &mut E) -> &mut Ewhere
E: Extend<Self::Item>,
Self: Sized,
fn collect_into<E>(self, collection: &mut E) -> &mut Ewhere E: Extend<Self::Item>, Self: Sized,
🔬This is a nightly-only experimental API. (
iter_collect_into
)Collects all the items from an iterator into a collection. Read more
1.0.0 · source§fn partition<B, F>(self, f: F) -> (B, B)where
Self: Sized,
B: Default + Extend<Self::Item>,
F: FnMut(&Self::Item) -> bool,
fn partition<B, F>(self, f: F) -> (B, B)where Self: Sized, B: Default + Extend<Self::Item>, F: FnMut(&Self::Item) -> bool,
Consumes an iterator, creating two collections from it. Read more
source§fn is_partitioned<P>(self, predicate: P) -> boolwhere
Self: Sized,
P: FnMut(Self::Item) -> bool,
fn is_partitioned<P>(self, predicate: P) -> boolwhere Self: Sized, P: FnMut(Self::Item) -> bool,
🔬This is a nightly-only experimental API. (
iter_is_partitioned
)Checks if the elements of this iterator are partitioned according to the given predicate,
such that all those that return
true
precede all those that return false
. Read more1.27.0 · source§fn try_fold<B, F, R>(&mut self, init: B, f: F) -> Rwhere
Self: Sized,
F: FnMut(B, Self::Item) -> R,
R: Try<Output = B>,
fn try_fold<B, F, R>(&mut self, init: B, f: F) -> Rwhere Self: Sized, F: FnMut(B, Self::Item) -> R, R: Try<Output = B>,
An iterator method that applies a function as long as it returns
successfully, producing a single, final value. Read more
1.27.0 · source§fn try_for_each<F, R>(&mut self, f: F) -> Rwhere
Self: Sized,
F: FnMut(Self::Item) -> R,
R: Try<Output = ()>,
fn try_for_each<F, R>(&mut self, f: F) -> Rwhere Self: Sized, F: FnMut(Self::Item) -> R, R: Try<Output = ()>,
An iterator method that applies a fallible function to each item in the
iterator, stopping at the first error and returning that error. Read more
1.0.0 · source§fn fold<B, F>(self, init: B, f: F) -> Bwhere
Self: Sized,
F: FnMut(B, Self::Item) -> B,
fn fold<B, F>(self, init: B, f: F) -> Bwhere Self: Sized, F: FnMut(B, Self::Item) -> B,
Folds every element into an accumulator by applying an operation,
returning the final result. Read more
1.51.0 · source§fn reduce<F>(self, f: F) -> Option<Self::Item>where
Self: Sized,
F: FnMut(Self::Item, Self::Item) -> Self::Item,
fn reduce<F>(self, f: F) -> Option<Self::Item>where Self: Sized, F: FnMut(Self::Item, Self::Item) -> Self::Item,
Reduces the elements to a single one, by repeatedly applying a reducing
operation. Read more
source§fn try_reduce<F, R>(
&mut self,
f: F
) -> <<R as Try>::Residual as Residual<Option<<R as Try>::Output>>>::TryTypewhere
Self: Sized,
F: FnMut(Self::Item, Self::Item) -> R,
R: Try<Output = Self::Item>,
<R as Try>::Residual: Residual<Option<Self::Item>>,
fn try_reduce<F, R>( &mut self, f: F ) -> <<R as Try>::Residual as Residual<Option<<R as Try>::Output>>>::TryTypewhere Self: Sized, F: FnMut(Self::Item, Self::Item) -> R, R: Try<Output = Self::Item>, <R as Try>::Residual: Residual<Option<Self::Item>>,
🔬This is a nightly-only experimental API. (
iterator_try_reduce
)Reduces the elements to a single one by repeatedly applying a reducing operation. If the
closure returns a failure, the failure is propagated back to the caller immediately. Read more
1.0.0 · source§fn all<F>(&mut self, f: F) -> boolwhere
Self: Sized,
F: FnMut(Self::Item) -> bool,
fn all<F>(&mut self, f: F) -> boolwhere Self: Sized, F: FnMut(Self::Item) -> bool,
Tests if every element of the iterator matches a predicate. Read more
1.0.0 · source§fn any<F>(&mut self, f: F) -> boolwhere
Self: Sized,
F: FnMut(Self::Item) -> bool,
fn any<F>(&mut self, f: F) -> boolwhere Self: Sized, F: FnMut(Self::Item) -> bool,
Tests if any element of the iterator matches a predicate. Read more
1.0.0 · source§fn find<P>(&mut self, predicate: P) -> Option<Self::Item>where
Self: Sized,
P: FnMut(&Self::Item) -> bool,
fn find<P>(&mut self, predicate: P) -> Option<Self::Item>where Self: Sized, P: FnMut(&Self::Item) -> bool,
Searches for an element of an iterator that satisfies a predicate. Read more
1.30.0 · source§fn find_map<B, F>(&mut self, f: F) -> Option<B>where
Self: Sized,
F: FnMut(Self::Item) -> Option<B>,
fn find_map<B, F>(&mut self, f: F) -> Option<B>where Self: Sized, F: FnMut(Self::Item) -> Option<B>,
Applies function to the elements of iterator and returns
the first non-none result. Read more
source§fn try_find<F, R>(
&mut self,
f: F
) -> <<R as Try>::Residual as Residual<Option<Self::Item>>>::TryTypewhere
Self: Sized,
F: FnMut(&Self::Item) -> R,
R: Try<Output = bool>,
<R as Try>::Residual: Residual<Option<Self::Item>>,
fn try_find<F, R>( &mut self, f: F ) -> <<R as Try>::Residual as Residual<Option<Self::Item>>>::TryTypewhere Self: Sized, F: FnMut(&Self::Item) -> R, R: Try<Output = bool>, <R as Try>::Residual: Residual<Option<Self::Item>>,
🔬This is a nightly-only experimental API. (
try_find
)Applies function to the elements of iterator and returns
the first true result or the first error. Read more
1.0.0 · source§fn position<P>(&mut self, predicate: P) -> Option<usize>where
Self: Sized,
P: FnMut(Self::Item) -> bool,
fn position<P>(&mut self, predicate: P) -> Option<usize>where Self: Sized, P: FnMut(Self::Item) -> bool,
Searches for an element in an iterator, returning its index. Read more
1.6.0 · source§fn max_by_key<B, F>(self, f: F) -> Option<Self::Item>where
B: Ord,
Self: Sized,
F: FnMut(&Self::Item) -> B,
fn max_by_key<B, F>(self, f: F) -> Option<Self::Item>where B: Ord, Self: Sized, F: FnMut(&Self::Item) -> B,
Returns the element that gives the maximum value from the
specified function. Read more
1.15.0 · source§fn max_by<F>(self, compare: F) -> Option<Self::Item>where
Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn max_by<F>(self, compare: F) -> Option<Self::Item>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Returns the element that gives the maximum value with respect to the
specified comparison function. Read more
1.6.0 · source§fn min_by_key<B, F>(self, f: F) -> Option<Self::Item>where
B: Ord,
Self: Sized,
F: FnMut(&Self::Item) -> B,
fn min_by_key<B, F>(self, f: F) -> Option<Self::Item>where B: Ord, Self: Sized, F: FnMut(&Self::Item) -> B,
Returns the element that gives the minimum value from the
specified function. Read more
1.15.0 · source§fn min_by<F>(self, compare: F) -> Option<Self::Item>where
Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn min_by<F>(self, compare: F) -> Option<Self::Item>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Returns the element that gives the minimum value with respect to the
specified comparison function. Read more
1.0.0 · source§fn unzip<A, B, FromA, FromB>(self) -> (FromA, FromB)where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Sized + Iterator<Item = (A, B)>,
fn unzip<A, B, FromA, FromB>(self) -> (FromA, FromB)where FromA: Default + Extend<A>, FromB: Default + Extend<B>, Self: Sized + Iterator<Item = (A, B)>,
Converts an iterator of pairs into a pair of containers. Read more
1.36.0 · source§fn copied<'a, T>(self) -> Copied<Self>where
T: 'a + Copy,
Self: Sized + Iterator<Item = &'a T>,
fn copied<'a, T>(self) -> Copied<Self>where T: 'a + Copy, Self: Sized + Iterator<Item = &'a T>,
Creates an iterator which copies all of its elements. Read more
1.0.0 · source§fn cloned<'a, T>(self) -> Cloned<Self>where
T: 'a + Clone,
Self: Sized + Iterator<Item = &'a T>,
fn cloned<'a, T>(self) -> Cloned<Self>where T: 'a + Clone, Self: Sized + Iterator<Item = &'a T>,
source§fn array_chunks<const N: usize>(self) -> ArrayChunks<Self, N>where
Self: Sized,
fn array_chunks<const N: usize>(self) -> ArrayChunks<Self, N>where Self: Sized,
🔬This is a nightly-only experimental API. (
iter_array_chunks
)Returns an iterator over
N
elements of the iterator at a time. Read more1.11.0 · source§fn sum<S>(self) -> Swhere
Self: Sized,
S: Sum<Self::Item>,
fn sum<S>(self) -> Swhere Self: Sized, S: Sum<Self::Item>,
Sums the elements of an iterator. Read more
1.11.0 · source§fn product<P>(self) -> Pwhere
Self: Sized,
P: Product<Self::Item>,
fn product<P>(self) -> Pwhere Self: Sized, P: Product<Self::Item>,
Iterates over the entire iterator, multiplying all the elements Read more
source§fn cmp_by<I, F>(self, other: I, cmp: F) -> Orderingwhere
Self: Sized,
I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Ordering,
fn cmp_by<I, F>(self, other: I, cmp: F) -> Orderingwhere Self: Sized, I: IntoIterator, F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Ordering,
🔬This is a nightly-only experimental API. (
iter_order_by
)Lexicographically compares the elements of this
Iterator
with those
of another with respect to the specified comparison function. Read more1.5.0 · source§fn partial_cmp<I>(self, other: I) -> Option<Ordering>where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Self: Sized,
fn partial_cmp<I>(self, other: I) -> Option<Ordering>where I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,
Lexicographically compares the
PartialOrd
elements of
this Iterator
with those of another. The comparison works like short-circuit
evaluation, returning a result without comparing the remaining elements.
As soon as an order can be determined, the evaluation stops and a result is returned. Read moresource§fn partial_cmp_by<I, F>(self, other: I, partial_cmp: F) -> Option<Ordering>where
Self: Sized,
I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Option<Ordering>,
fn partial_cmp_by<I, F>(self, other: I, partial_cmp: F) -> Option<Ordering>where Self: Sized, I: IntoIterator, F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Option<Ordering>,
🔬This is a nightly-only experimental API. (
iter_order_by
)Lexicographically compares the elements of this
Iterator
with those
of another with respect to the specified comparison function. Read more1.5.0 · source§fn eq<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
Self: Sized,
fn eq<I>(self, other: I) -> boolwhere I: IntoIterator, Self::Item: PartialEq<<I as IntoIterator>::Item>, Self: Sized,
source§fn eq_by<I, F>(self, other: I, eq: F) -> boolwhere
Self: Sized,
I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> bool,
fn eq_by<I, F>(self, other: I, eq: F) -> boolwhere Self: Sized, I: IntoIterator, F: FnMut(Self::Item, <I as IntoIterator>::Item) -> bool,
🔬This is a nightly-only experimental API. (
iter_order_by
)1.5.0 · source§fn ne<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
Self: Sized,
fn ne<I>(self, other: I) -> boolwhere I: IntoIterator, Self::Item: PartialEq<<I as IntoIterator>::Item>, Self: Sized,
1.5.0 · source§fn lt<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Self: Sized,
fn lt<I>(self, other: I) -> boolwhere I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,
Determines if the elements of this
Iterator
are lexicographically
less than those of another. Read more1.5.0 · source§fn le<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Self: Sized,
fn le<I>(self, other: I) -> boolwhere I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,
Determines if the elements of this
Iterator
are lexicographically
less or equal to those of another. Read more1.5.0 · source§fn gt<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Self: Sized,
fn gt<I>(self, other: I) -> boolwhere I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,
Determines if the elements of this
Iterator
are lexicographically
greater than those of another. Read more1.5.0 · source§fn ge<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Self: Sized,
fn ge<I>(self, other: I) -> boolwhere I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,
Determines if the elements of this
Iterator
are lexicographically
greater than or equal to those of another. Read moresource§fn is_sorted_by<F>(self, compare: F) -> boolwhere
Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Option<Ordering>,
fn is_sorted_by<F>(self, compare: F) -> boolwhere Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Option<Ordering>,
🔬This is a nightly-only experimental API. (
is_sorted
)Checks if the elements of this iterator are sorted using the given comparator function. Read more
source§fn is_sorted_by_key<F, K>(self, f: F) -> boolwhere
Self: Sized,
F: FnMut(Self::Item) -> K,
K: PartialOrd<K>,
fn is_sorted_by_key<F, K>(self, f: F) -> boolwhere Self: Sized, F: FnMut(Self::Item) -> K, K: PartialOrd<K>,
🔬This is a nightly-only experimental API. (
is_sorted
)Checks if the elements of this iterator are sorted using the given key extraction
function. Read more
Auto Trait Implementations§
impl !RefUnwindSafe for WalkTree
impl Send for WalkTree
impl Sync for WalkTree
impl Unpin for WalkTree
impl !UnwindSafe for WalkTree
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T, R, I> FileIterator for Iwhere
T: Entry,
R: Entry + From<T>,
I: HierarchicalIterator<Feed = (Result<T, WalkError>, TreeResidue<R>), Item = Result<T, WalkError>> + Iterator,
impl<T, R, I> FileIterator for Iwhere T: Entry, R: Entry + From<T>, I: HierarchicalIterator<Feed = (Result<T, WalkError>, TreeResidue<R>), Item = Result<T, WalkError>> + Iterator,
§type Entry = T
type Entry = T
Available on crate feature
walk
only.The file entry type yielded by the iterator. Read more
source§fn filter_entry<F>(self, f: F) -> FilterEntry<Self, F> ⓘwhere
Self: Sized,
F: FnMut(&dyn Entry) -> Option<EntryResidue>,
fn filter_entry<F>(self, f: F) -> FilterEntry<Self, F> ⓘwhere Self: Sized, F: FnMut(&dyn Entry) -> Option<EntryResidue>,
Available on crate feature
walk
only.Filters file entries and controls the traversal of the directory tree. Read more
source§impl<I> IntoIterator for Iwhere
I: Iterator,
impl<I> IntoIterator for Iwhere I: Iterator,
§impl<I> IteratorExt for Iwhere
I: Iterator,
impl<I> IteratorExt for Iwhere I: Iterator,
§fn into_non_error_diagnostic<'d>(
self
) -> Result<((), Vec<Box<dyn Diagnostic + 'd, Global>, Global>), Vec1<Box<dyn Diagnostic + 'd, Global>>>where
I: Iterator<Item = Box<dyn Diagnostic + 'd, Global>>,
fn into_non_error_diagnostic<'d>( self ) -> Result<((), Vec<Box<dyn Diagnostic + 'd, Global>, Global>), Vec1<Box<dyn Diagnostic + 'd, Global>>>where I: Iterator<Item = Box<dyn Diagnostic + 'd, Global>>,
Converts from a type that implements
Iterator<Item = BoxedDiagnostic<'d>>
into
DiagnosticResult<'d, ()>
. Read moresource§impl<T> Itertools for Twhere
T: Iterator + ?Sized,
impl<T> Itertools for Twhere T: Iterator + ?Sized,
source§fn interleave<J>(
self,
other: J
) -> Interleave<Self, <J as IntoIterator>::IntoIter>where
J: IntoIterator<Item = Self::Item>,
Self: Sized,
fn interleave<J>( self, other: J ) -> Interleave<Self, <J as IntoIterator>::IntoIter>where J: IntoIterator<Item = Self::Item>, Self: Sized,
Alternate elements from two iterators until both have run out. Read more
source§fn interleave_shortest<J>(
self,
other: J
) -> InterleaveShortest<Self, <J as IntoIterator>::IntoIter>where
J: IntoIterator<Item = Self::Item>,
Self: Sized,
fn interleave_shortest<J>( self, other: J ) -> InterleaveShortest<Self, <J as IntoIterator>::IntoIter>where J: IntoIterator<Item = Self::Item>, Self: Sized,
Alternate elements from two iterators until at least one of them has run
out. Read more
source§fn intersperse(
self,
element: Self::Item
) -> IntersperseWith<Self, IntersperseElementSimple<Self::Item>>where
Self: Sized,
Self::Item: Clone,
fn intersperse( self, element: Self::Item ) -> IntersperseWith<Self, IntersperseElementSimple<Self::Item>>where Self: Sized, Self::Item: Clone,
An iterator adaptor to insert a particular value
between each element of the adapted iterator. Read more
source§fn intersperse_with<F>(self, element: F) -> IntersperseWith<Self, F>where
Self: Sized,
F: FnMut() -> Self::Item,
fn intersperse_with<F>(self, element: F) -> IntersperseWith<Self, F>where Self: Sized, F: FnMut() -> Self::Item,
An iterator adaptor to insert a particular value created by a function
between each element of the adapted iterator. Read more
source§fn zip_longest<J>(
self,
other: J
) -> ZipLongest<Self, <J as IntoIterator>::IntoIter>where
J: IntoIterator,
Self: Sized,
fn zip_longest<J>( self, other: J ) -> ZipLongest<Self, <J as IntoIterator>::IntoIter>where J: IntoIterator, Self: Sized,
Create an iterator which iterates over both this and the specified
iterator simultaneously, yielding pairs of two optional elements. Read more
source§fn zip_eq<J>(self, other: J) -> ZipEq<Self, <J as IntoIterator>::IntoIter>where
J: IntoIterator,
Self: Sized,
fn zip_eq<J>(self, other: J) -> ZipEq<Self, <J as IntoIterator>::IntoIter>where J: IntoIterator, Self: Sized,
Create an iterator which iterates over both this and the specified
iterator simultaneously, yielding pairs of elements. Read more
source§fn batching<B, F>(self, f: F) -> Batching<Self, F>where
F: FnMut(&mut Self) -> Option<B>,
Self: Sized,
fn batching<B, F>(self, f: F) -> Batching<Self, F>where F: FnMut(&mut Self) -> Option<B>, Self: Sized,
A “meta iterator adaptor”. Its closure receives a reference to the
iterator and may pick off as many elements as it likes, to produce the
next iterator element. Read more
source§fn group_by<K, F>(self, key: F) -> GroupBy<K, Self, F>where
Self: Sized,
F: FnMut(&Self::Item) -> K,
K: PartialEq<K>,
fn group_by<K, F>(self, key: F) -> GroupBy<K, Self, F>where Self: Sized, F: FnMut(&Self::Item) -> K, K: PartialEq<K>,
Return an iterable that can group iterator elements.
Consecutive elements that map to the same key (“runs”), are assigned
to the same group. Read more
source§fn chunks(self, size: usize) -> IntoChunks<Self>where
Self: Sized,
fn chunks(self, size: usize) -> IntoChunks<Self>where Self: Sized,
Return an iterable that can chunk the iterator. Read more
source§fn tuple_windows<T>(self) -> TupleWindows<Self, T>where
Self: Sized + Iterator<Item = <T as TupleCollect>::Item>,
T: HomogeneousTuple,
<T as TupleCollect>::Item: Clone,
fn tuple_windows<T>(self) -> TupleWindows<Self, T>where Self: Sized + Iterator<Item = <T as TupleCollect>::Item>, T: HomogeneousTuple, <T as TupleCollect>::Item: Clone,
Return an iterator over all contiguous windows producing tuples of
a specific size (up to 12). Read more
source§fn circular_tuple_windows<T>(self) -> CircularTupleWindows<Self, T>where
Self: Sized + Clone + Iterator<Item = <T as TupleCollect>::Item> + ExactSizeIterator,
T: TupleCollect + Clone,
<T as TupleCollect>::Item: Clone,
fn circular_tuple_windows<T>(self) -> CircularTupleWindows<Self, T>where Self: Sized + Clone + Iterator<Item = <T as TupleCollect>::Item> + ExactSizeIterator, T: TupleCollect + Clone, <T as TupleCollect>::Item: Clone,
Return an iterator over all windows, wrapping back to the first
elements when the window would otherwise exceed the length of the
iterator, producing tuples of a specific size (up to 12). Read more
source§fn tuples<T>(self) -> Tuples<Self, T>where
Self: Sized + Iterator<Item = <T as TupleCollect>::Item>,
T: HomogeneousTuple,
fn tuples<T>(self) -> Tuples<Self, T>where Self: Sized + Iterator<Item = <T as TupleCollect>::Item>, T: HomogeneousTuple,
Return an iterator that groups the items in tuples of a specific size
(up to 12). Read more
source§fn tee(self) -> (Tee<Self>, Tee<Self>)where
Self: Sized,
Self::Item: Clone,
fn tee(self) -> (Tee<Self>, Tee<Self>)where Self: Sized, Self::Item: Clone,
Split into an iterator pair that both yield all elements from
the original iterator. Read more
source§fn step(self, n: usize) -> Step<Self>where
Self: Sized,
fn step(self, n: usize) -> Step<Self>where Self: Sized,
👎Deprecated since 0.8.0: Use std .step_by() instead
Return an iterator adaptor that steps
n
elements in the base iterator
for each iteration. Read moresource§fn map_into<R>(self) -> MapSpecialCase<Self, MapSpecialCaseFnInto<R>>where
Self: Sized,
Self::Item: Into<R>,
fn map_into<R>(self) -> MapSpecialCase<Self, MapSpecialCaseFnInto<R>>where Self: Sized, Self::Item: Into<R>,
source§fn map_results<F, T, U, E>(
self,
f: F
) -> MapSpecialCase<Self, MapSpecialCaseFnOk<F>>where
Self: Iterator<Item = Result<T, E>> + Sized,
F: FnMut(T) -> U,
fn map_results<F, T, U, E>( self, f: F ) -> MapSpecialCase<Self, MapSpecialCaseFnOk<F>>where Self: Iterator<Item = Result<T, E>> + Sized, F: FnMut(T) -> U,
👎Deprecated since 0.10.0: Use .map_ok() instead
See
.map_ok()
.source§fn map_ok<F, T, U, E>(self, f: F) -> MapSpecialCase<Self, MapSpecialCaseFnOk<F>>where
Self: Iterator<Item = Result<T, E>> + Sized,
F: FnMut(T) -> U,
fn map_ok<F, T, U, E>(self, f: F) -> MapSpecialCase<Self, MapSpecialCaseFnOk<F>>where Self: Iterator<Item = Result<T, E>> + Sized, F: FnMut(T) -> U,
Return an iterator adaptor that applies the provided closure
to every
Result::Ok
value. Result::Err
values are
unchanged. Read moresource§fn filter_ok<F, T, E>(self, f: F) -> FilterOk<Self, F>where
Self: Iterator<Item = Result<T, E>> + Sized,
F: FnMut(&T) -> bool,
fn filter_ok<F, T, E>(self, f: F) -> FilterOk<Self, F>where Self: Iterator<Item = Result<T, E>> + Sized, F: FnMut(&T) -> bool,
Return an iterator adaptor that filters every
Result::Ok
value with the provided closure. Result::Err
values are
unchanged. Read moresource§fn filter_map_ok<F, T, U, E>(self, f: F) -> FilterMapOk<Self, F>where
Self: Iterator<Item = Result<T, E>> + Sized,
F: FnMut(T) -> Option<U>,
fn filter_map_ok<F, T, U, E>(self, f: F) -> FilterMapOk<Self, F>where Self: Iterator<Item = Result<T, E>> + Sized, F: FnMut(T) -> Option<U>,
Return an iterator adaptor that filters and transforms every
Result::Ok
value with the provided closure. Result::Err
values are unchanged. Read moresource§fn flatten_ok<T, E>(self) -> FlattenOk<Self, T, E>where
Self: Iterator<Item = Result<T, E>> + Sized,
T: IntoIterator,
fn flatten_ok<T, E>(self) -> FlattenOk<Self, T, E>where Self: Iterator<Item = Result<T, E>> + Sized, T: IntoIterator,
Return an iterator adaptor that flattens every
Result::Ok
value into
a series of Result::Ok
values. Result::Err
values are unchanged. Read moresource§fn process_results<F, T, E, R>(self, processor: F) -> Result<R, E>where
Self: Iterator<Item = Result<T, E>> + Sized,
F: FnOnce(ProcessResults<'_, Self, E>) -> R,
fn process_results<F, T, E, R>(self, processor: F) -> Result<R, E>where Self: Iterator<Item = Result<T, E>> + Sized, F: FnOnce(ProcessResults<'_, Self, E>) -> R,
“Lift” a function of the values of the current iterator so as to process
an iterator of
Result
values instead. Read moresource§fn merge<J>(
self,
other: J
) -> MergeBy<Self, <J as IntoIterator>::IntoIter, MergeLte>where
Self: Sized,
Self::Item: PartialOrd<Self::Item>,
J: IntoIterator<Item = Self::Item>,
fn merge<J>( self, other: J ) -> MergeBy<Self, <J as IntoIterator>::IntoIter, MergeLte>where Self: Sized, Self::Item: PartialOrd<Self::Item>, J: IntoIterator<Item = Self::Item>,
Return an iterator adaptor that merges the two base iterators in
ascending order. If both base iterators are sorted (ascending), the
result is sorted. Read more
source§fn merge_by<J, F>(
self,
other: J,
is_first: F
) -> MergeBy<Self, <J as IntoIterator>::IntoIter, F>where
Self: Sized,
J: IntoIterator<Item = Self::Item>,
F: FnMut(&Self::Item, &Self::Item) -> bool,
fn merge_by<J, F>( self, other: J, is_first: F ) -> MergeBy<Self, <J as IntoIterator>::IntoIter, F>where Self: Sized, J: IntoIterator<Item = Self::Item>, F: FnMut(&Self::Item, &Self::Item) -> bool,
source§fn merge_join_by<J, F, T>(
self,
other: J,
cmp_fn: F
) -> MergeJoinBy<Self, <J as IntoIterator>::IntoIter, F>where
J: IntoIterator,
F: FnMut(&Self::Item, &<J as IntoIterator>::Item) -> T,
T: OrderingOrBool<Self::Item, <J as IntoIterator>::Item>,
Self: Sized,
fn merge_join_by<J, F, T>( self, other: J, cmp_fn: F ) -> MergeJoinBy<Self, <J as IntoIterator>::IntoIter, F>where J: IntoIterator, F: FnMut(&Self::Item, &<J as IntoIterator>::Item) -> T, T: OrderingOrBool<Self::Item, <J as IntoIterator>::Item>, Self: Sized,
Create an iterator that merges items from both this and the specified
iterator in ascending order. Read more
source§fn kmerge(self) -> KMergeBy<<Self::Item as IntoIterator>::IntoIter, KMergeByLt>where
Self: Sized,
Self::Item: IntoIterator,
<Self::Item as IntoIterator>::Item: PartialOrd<<Self::Item as IntoIterator>::Item>,
fn kmerge(self) -> KMergeBy<<Self::Item as IntoIterator>::IntoIter, KMergeByLt>where Self: Sized, Self::Item: IntoIterator, <Self::Item as IntoIterator>::Item: PartialOrd<<Self::Item as IntoIterator>::Item>,
Return an iterator adaptor that flattens an iterator of iterators by
merging them in ascending order. Read more
source§fn kmerge_by<F>(
self,
first: F
) -> KMergeBy<<Self::Item as IntoIterator>::IntoIter, F>where
Self: Sized,
Self::Item: IntoIterator,
F: FnMut(&<Self::Item as IntoIterator>::Item, &<Self::Item as IntoIterator>::Item) -> bool,
fn kmerge_by<F>( self, first: F ) -> KMergeBy<<Self::Item as IntoIterator>::IntoIter, F>where Self: Sized, Self::Item: IntoIterator, F: FnMut(&<Self::Item as IntoIterator>::Item, &<Self::Item as IntoIterator>::Item) -> bool,
Return an iterator adaptor that flattens an iterator of iterators by
merging them according to the given closure. Read more
source§fn cartesian_product<J>(
self,
other: J
) -> Product<Self, <J as IntoIterator>::IntoIter>where
Self: Sized,
Self::Item: Clone,
J: IntoIterator,
<J as IntoIterator>::IntoIter: Clone,
fn cartesian_product<J>( self, other: J ) -> Product<Self, <J as IntoIterator>::IntoIter>where Self: Sized, Self::Item: Clone, J: IntoIterator, <J as IntoIterator>::IntoIter: Clone,
Return an iterator adaptor that iterates over the cartesian product of
the element sets of two iterators
self
and J
. Read moresource§fn multi_cartesian_product(
self
) -> MultiProduct<<Self::Item as IntoIterator>::IntoIter>where
Self: Sized,
Self::Item: IntoIterator,
<Self::Item as IntoIterator>::IntoIter: Clone,
<Self::Item as IntoIterator>::Item: Clone,
fn multi_cartesian_product( self ) -> MultiProduct<<Self::Item as IntoIterator>::IntoIter>where Self: Sized, Self::Item: IntoIterator, <Self::Item as IntoIterator>::IntoIter: Clone, <Self::Item as IntoIterator>::Item: Clone,
Return an iterator adaptor that iterates over the cartesian product of
all subiterators returned by meta-iterator
self
. Read moresource§fn coalesce<F>(self, f: F) -> CoalesceBy<Self, F, Self::Item>where
Self: Sized,
F: FnMut(Self::Item, Self::Item) -> Result<Self::Item, (Self::Item, Self::Item)>,
fn coalesce<F>(self, f: F) -> CoalesceBy<Self, F, Self::Item>where Self: Sized, F: FnMut(Self::Item, Self::Item) -> Result<Self::Item, (Self::Item, Self::Item)>,
Return an iterator adaptor that uses the passed-in closure to
optionally merge together consecutive elements. Read more
source§fn dedup(self) -> CoalesceBy<Self, DedupPred2CoalescePred<DedupEq>, Self::Item>where
Self: Sized,
Self::Item: PartialEq<Self::Item>,
fn dedup(self) -> CoalesceBy<Self, DedupPred2CoalescePred<DedupEq>, Self::Item>where Self: Sized, Self::Item: PartialEq<Self::Item>,
Remove duplicates from sections of consecutive identical elements.
If the iterator is sorted, all elements will be unique. Read more
source§fn dedup_by<Cmp>(
self,
cmp: Cmp
) -> CoalesceBy<Self, DedupPred2CoalescePred<Cmp>, Self::Item>where
Self: Sized,
Cmp: FnMut(&Self::Item, &Self::Item) -> bool,
fn dedup_by<Cmp>( self, cmp: Cmp ) -> CoalesceBy<Self, DedupPred2CoalescePred<Cmp>, Self::Item>where Self: Sized, Cmp: FnMut(&Self::Item, &Self::Item) -> bool,
Remove duplicates from sections of consecutive identical elements,
determining equality using a comparison function.
If the iterator is sorted, all elements will be unique. Read more
source§fn dedup_with_count(
self
) -> CoalesceBy<Self, DedupPredWithCount2CoalescePred<DedupEq>, (usize, Self::Item)>where
Self: Sized,
fn dedup_with_count( self ) -> CoalesceBy<Self, DedupPredWithCount2CoalescePred<DedupEq>, (usize, Self::Item)>where Self: Sized,
Remove duplicates from sections of consecutive identical elements, while keeping a count of
how many repeated elements were present.
If the iterator is sorted, all elements will be unique. Read more
source§fn dedup_by_with_count<Cmp>(
self,
cmp: Cmp
) -> CoalesceBy<Self, DedupPredWithCount2CoalescePred<Cmp>, (usize, Self::Item)>where
Self: Sized,
Cmp: FnMut(&Self::Item, &Self::Item) -> bool,
fn dedup_by_with_count<Cmp>( self, cmp: Cmp ) -> CoalesceBy<Self, DedupPredWithCount2CoalescePred<Cmp>, (usize, Self::Item)>where Self: Sized, Cmp: FnMut(&Self::Item, &Self::Item) -> bool,
Remove duplicates from sections of consecutive identical elements, while keeping a count of
how many repeated elements were present.
This will determine equality using a comparison function.
If the iterator is sorted, all elements will be unique. Read more
source§fn duplicates(self) -> DuplicatesBy<Self, Self::Item, ById>where
Self: Sized,
Self::Item: Eq + Hash,
fn duplicates(self) -> DuplicatesBy<Self, Self::Item, ById>where Self: Sized, Self::Item: Eq + Hash,
Return an iterator adaptor that produces elements that appear more than once during the
iteration. Duplicates are detected using hash and equality. Read more
source§fn duplicates_by<V, F>(self, f: F) -> DuplicatesBy<Self, V, ByFn<F>>where
Self: Sized,
V: Eq + Hash,
F: FnMut(&Self::Item) -> V,
fn duplicates_by<V, F>(self, f: F) -> DuplicatesBy<Self, V, ByFn<F>>where Self: Sized, V: Eq + Hash, F: FnMut(&Self::Item) -> V,
Return an iterator adaptor that produces elements that appear more than once during the
iteration. Duplicates are detected using hash and equality. Read more
source§fn unique(self) -> Unique<Self>where
Self: Sized,
Self::Item: Clone + Eq + Hash,
fn unique(self) -> Unique<Self>where Self: Sized, Self::Item: Clone + Eq + Hash,
Return an iterator adaptor that filters out elements that have
already been produced once during the iteration. Duplicates
are detected using hash and equality. Read more
source§fn unique_by<V, F>(self, f: F) -> UniqueBy<Self, V, F>where
Self: Sized,
V: Eq + Hash,
F: FnMut(&Self::Item) -> V,
fn unique_by<V, F>(self, f: F) -> UniqueBy<Self, V, F>where Self: Sized, V: Eq + Hash, F: FnMut(&Self::Item) -> V,
Return an iterator adaptor that filters out elements that have
already been produced once during the iteration. Read more
source§fn peeking_take_while<F>(&mut self, accept: F) -> PeekingTakeWhile<'_, Self, F>where
Self: Sized + PeekingNext,
F: FnMut(&Self::Item) -> bool,
fn peeking_take_while<F>(&mut self, accept: F) -> PeekingTakeWhile<'_, Self, F>where Self: Sized + PeekingNext, F: FnMut(&Self::Item) -> bool,
Return an iterator adaptor that borrows from this iterator and
takes items while the closure
accept
returns true
. Read moresource§fn take_while_ref<F>(&mut self, accept: F) -> TakeWhileRef<'_, Self, F>where
Self: Clone,
F: FnMut(&Self::Item) -> bool,
fn take_while_ref<F>(&mut self, accept: F) -> TakeWhileRef<'_, Self, F>where Self: Clone, F: FnMut(&Self::Item) -> bool,
Return an iterator adaptor that borrows from a
Clone
-able iterator
to only pick off elements while the predicate accept
returns true
. Read moresource§fn take_while_inclusive<F>(
&mut self,
accept: F
) -> TakeWhileInclusive<'_, Self, F>where
Self: Sized,
F: FnMut(&Self::Item) -> bool,
fn take_while_inclusive<F>( &mut self, accept: F ) -> TakeWhileInclusive<'_, Self, F>where Self: Sized, F: FnMut(&Self::Item) -> bool,
Returns an iterator adaptor that consumes elements while the given
predicate is
true
, including the element for which the predicate
first returned false
. Read moresource§fn while_some<A>(self) -> WhileSome<Self>where
Self: Sized + Iterator<Item = Option<A>>,
fn while_some<A>(self) -> WhileSome<Self>where Self: Sized + Iterator<Item = Option<A>>,
Return an iterator adaptor that filters
Option<A>
iterator elements
and produces A
. Stops on the first None
encountered. Read moresource§fn tuple_combinations<T>(self) -> TupleCombinations<Self, T>where
Self: Sized + Clone,
Self::Item: Clone,
T: HasCombination<Self>,
fn tuple_combinations<T>(self) -> TupleCombinations<Self, T>where Self: Sized + Clone, Self::Item: Clone, T: HasCombination<Self>,
Return an iterator adaptor that iterates over the combinations of the
elements from an iterator. Read more
source§fn combinations(self, k: usize) -> Combinations<Self>where
Self: Sized,
Self::Item: Clone,
fn combinations(self, k: usize) -> Combinations<Self>where Self: Sized, Self::Item: Clone,
Return an iterator adaptor that iterates over the
k
-length combinations of
the elements from an iterator. Read moresource§fn combinations_with_replacement(
self,
k: usize
) -> CombinationsWithReplacement<Self>where
Self: Sized,
Self::Item: Clone,
fn combinations_with_replacement( self, k: usize ) -> CombinationsWithReplacement<Self>where Self: Sized, Self::Item: Clone,
Return an iterator that iterates over the
k
-length combinations of
the elements from an iterator, with replacement. Read moresource§fn permutations(self, k: usize) -> Permutations<Self>where
Self: Sized,
Self::Item: Clone,
fn permutations(self, k: usize) -> Permutations<Self>where Self: Sized, Self::Item: Clone,
Return an iterator adaptor that iterates over all k-permutations of the
elements from an iterator. Read more
source§fn powerset(self) -> Powerset<Self>where
Self: Sized,
Self::Item: Clone,
fn powerset(self) -> Powerset<Self>where Self: Sized, Self::Item: Clone,
Return an iterator that iterates through the powerset of the elements from an
iterator. Read more
source§fn pad_using<F>(self, min: usize, f: F) -> PadUsing<Self, F>where
Self: Sized,
F: FnMut(usize) -> Self::Item,
fn pad_using<F>(self, min: usize, f: F) -> PadUsing<Self, F>where Self: Sized, F: FnMut(usize) -> Self::Item,
Return an iterator adaptor that pads the sequence to a minimum length of
min
by filling missing elements using a closure f
. Read moresource§fn with_position(self) -> WithPosition<Self>where
Self: Sized,
fn with_position(self) -> WithPosition<Self>where Self: Sized,
Return an iterator adaptor that combines each element with a
Position
to
ease special-case handling of the first or last elements. Read moresource§fn positions<P>(self, predicate: P) -> Positions<Self, P>where
Self: Sized,
P: FnMut(Self::Item) -> bool,
fn positions<P>(self, predicate: P) -> Positions<Self, P>where Self: Sized, P: FnMut(Self::Item) -> bool,
Return an iterator adaptor that yields the indices of all elements
satisfying a predicate, counted from the start of the iterator. Read more
source§fn update<F>(self, updater: F) -> Update<Self, F>where
Self: Sized,
F: FnMut(&mut Self::Item),
fn update<F>(self, updater: F) -> Update<Self, F>where Self: Sized, F: FnMut(&mut Self::Item),
Return an iterator adaptor that applies a mutating function
to each element before yielding it. Read more
source§fn next_tuple<T>(&mut self) -> Option<T>where
Self: Sized + Iterator<Item = <T as TupleCollect>::Item>,
T: HomogeneousTuple,
fn next_tuple<T>(&mut self) -> Option<T>where Self: Sized + Iterator<Item = <T as TupleCollect>::Item>, T: HomogeneousTuple,
Advances the iterator and returns the next items grouped in a tuple of
a specific size (up to 12). Read more
source§fn collect_tuple<T>(self) -> Option<T>where
Self: Sized + Iterator<Item = <T as TupleCollect>::Item>,
T: HomogeneousTuple,
fn collect_tuple<T>(self) -> Option<T>where Self: Sized + Iterator<Item = <T as TupleCollect>::Item>, T: HomogeneousTuple,
Collects all items from the iterator into a tuple of a specific size
(up to 12). Read more
source§fn find_position<P>(&mut self, pred: P) -> Option<(usize, Self::Item)>where
P: FnMut(&Self::Item) -> bool,
fn find_position<P>(&mut self, pred: P) -> Option<(usize, Self::Item)>where P: FnMut(&Self::Item) -> bool,
Find the position and value of the first element satisfying a predicate. Read more
source§fn find_or_last<P>(self, predicate: P) -> Option<Self::Item>where
Self: Sized,
P: FnMut(&Self::Item) -> bool,
fn find_or_last<P>(self, predicate: P) -> Option<Self::Item>where Self: Sized, P: FnMut(&Self::Item) -> bool,
Find the value of the first element satisfying a predicate or return the last element, if any. Read more
source§fn find_or_first<P>(self, predicate: P) -> Option<Self::Item>where
Self: Sized,
P: FnMut(&Self::Item) -> bool,
fn find_or_first<P>(self, predicate: P) -> Option<Self::Item>where Self: Sized, P: FnMut(&Self::Item) -> bool,
Find the value of the first element satisfying a predicate or return the first element, if any. Read more
source§fn contains<Q>(&mut self, query: &Q) -> boolwhere
Self: Sized,
Self::Item: Borrow<Q>,
Q: PartialEq<Q>,
fn contains<Q>(&mut self, query: &Q) -> boolwhere Self: Sized, Self::Item: Borrow<Q>, Q: PartialEq<Q>,
Returns
true
if the given item is present in this iterator. Read moresource§fn all_equal(&mut self) -> boolwhere
Self: Sized,
Self::Item: PartialEq<Self::Item>,
fn all_equal(&mut self) -> boolwhere Self: Sized, Self::Item: PartialEq<Self::Item>,
Check whether all elements compare equal. Read more
source§fn all_equal_value(
&mut self
) -> Result<Self::Item, Option<(Self::Item, Self::Item)>>where
Self: Sized,
Self::Item: PartialEq<Self::Item>,
fn all_equal_value( &mut self ) -> Result<Self::Item, Option<(Self::Item, Self::Item)>>where Self: Sized, Self::Item: PartialEq<Self::Item>,
If there are elements and they are all equal, return a single copy of that element.
If there are no elements, return an Error containing None.
If there are elements and they are not all equal, return a tuple containing the first
two non-equal elements found. Read more
source§fn all_unique(&mut self) -> boolwhere
Self: Sized,
Self::Item: Eq + Hash,
fn all_unique(&mut self) -> boolwhere Self: Sized, Self::Item: Eq + Hash,
Check whether all elements are unique (non equal). Read more
source§fn dropping(self, n: usize) -> Selfwhere
Self: Sized,
fn dropping(self, n: usize) -> Selfwhere Self: Sized,
Consume the first
n
elements from the iterator eagerly,
and return the same iterator again. Read moresource§fn dropping_back(self, n: usize) -> Selfwhere
Self: Sized + DoubleEndedIterator,
fn dropping_back(self, n: usize) -> Selfwhere Self: Sized + DoubleEndedIterator,
Consume the last
n
elements from the iterator eagerly,
and return the same iterator again. Read moresource§fn foreach<F>(self, f: F)where
F: FnMut(Self::Item),
Self: Sized,
fn foreach<F>(self, f: F)where F: FnMut(Self::Item), Self: Sized,
👎Deprecated since 0.8.0: Use .for_each() instead
Run the closure
f
eagerly on each element of the iterator. Read moresource§fn concat(self) -> Self::Itemwhere
Self: Sized,
Self::Item: Extend<<Self::Item as IntoIterator>::Item> + IntoIterator + Default,
fn concat(self) -> Self::Itemwhere Self: Sized, Self::Item: Extend<<Self::Item as IntoIterator>::Item> + IntoIterator + Default,
source§fn collect_vec(self) -> Vec<Self::Item, Global>where
Self: Sized,
fn collect_vec(self) -> Vec<Self::Item, Global>where Self: Sized,
.collect_vec()
is simply a type specialization of Iterator::collect
,
for convenience.source§fn try_collect<T, U, E>(self) -> Result<U, E>where
Self: Sized + Iterator<Item = Result<T, E>>,
Result<U, E>: FromIterator<Result<T, E>>,
fn try_collect<T, U, E>(self) -> Result<U, E>where Self: Sized + Iterator<Item = Result<T, E>>, Result<U, E>: FromIterator<Result<T, E>>,
source§fn set_from<'a, A, J>(&mut self, from: J) -> usizewhere
A: 'a,
Self: Iterator<Item = &'a mut A>,
J: IntoIterator<Item = A>,
fn set_from<'a, A, J>(&mut self, from: J) -> usizewhere A: 'a, Self: Iterator<Item = &'a mut A>, J: IntoIterator<Item = A>,
Assign to each reference in
self
from the from
iterator,
stopping at the shortest of the two iterators. Read moresource§fn join(&mut self, sep: &str) -> Stringwhere
Self::Item: Display,
fn join(&mut self, sep: &str) -> Stringwhere Self::Item: Display,
Combine all iterator elements into one String, separated by
sep
. Read moresource§fn format(self, sep: &str) -> Format<'_, Self>where
Self: Sized,
fn format(self, sep: &str) -> Format<'_, Self>where Self: Sized,
Format all iterator elements, separated by
sep
. Read moresource§fn format_with<F>(self, sep: &str, format: F) -> FormatWith<'_, Self, F>where
Self: Sized,
F: FnMut(Self::Item, &mut dyn FnMut(&dyn Display) -> Result<(), Error>) -> Result<(), Error>,
fn format_with<F>(self, sep: &str, format: F) -> FormatWith<'_, Self, F>where Self: Sized, F: FnMut(Self::Item, &mut dyn FnMut(&dyn Display) -> Result<(), Error>) -> Result<(), Error>,
Format all iterator elements, separated by
sep
. Read moresource§fn fold_results<A, E, B, F>(&mut self, start: B, f: F) -> Result<B, E>where
Self: Iterator<Item = Result<A, E>>,
F: FnMut(B, A) -> B,
fn fold_results<A, E, B, F>(&mut self, start: B, f: F) -> Result<B, E>where Self: Iterator<Item = Result<A, E>>, F: FnMut(B, A) -> B,
👎Deprecated since 0.10.0: Use .fold_ok() instead
See
.fold_ok()
.source§fn fold_ok<A, E, B, F>(&mut self, start: B, f: F) -> Result<B, E>where
Self: Iterator<Item = Result<A, E>>,
F: FnMut(B, A) -> B,
fn fold_ok<A, E, B, F>(&mut self, start: B, f: F) -> Result<B, E>where Self: Iterator<Item = Result<A, E>>, F: FnMut(B, A) -> B,
Fold
Result
values from an iterator. Read moresource§fn fold_options<A, B, F>(&mut self, start: B, f: F) -> Option<B>where
Self: Iterator<Item = Option<A>>,
F: FnMut(B, A) -> B,
fn fold_options<A, B, F>(&mut self, start: B, f: F) -> Option<B>where Self: Iterator<Item = Option<A>>, F: FnMut(B, A) -> B,
Fold
Option
values from an iterator. Read moresource§fn fold1<F>(self, f: F) -> Option<Self::Item>where
F: FnMut(Self::Item, Self::Item) -> Self::Item,
Self: Sized,
fn fold1<F>(self, f: F) -> Option<Self::Item>where F: FnMut(Self::Item, Self::Item) -> Self::Item, Self: Sized,
👎Deprecated since 0.10.2: Use
Iterator::reduce
insteadAccumulator of the elements in the iterator. Read more
source§fn tree_fold1<F>(self, f: F) -> Option<Self::Item>where
F: FnMut(Self::Item, Self::Item) -> Self::Item,
Self: Sized,
fn tree_fold1<F>(self, f: F) -> Option<Self::Item>where F: FnMut(Self::Item, Self::Item) -> Self::Item, Self: Sized,
Accumulate the elements in the iterator in a tree-like manner. Read more
source§fn fold_while<B, F>(&mut self, init: B, f: F) -> FoldWhile<B>where
Self: Sized,
F: FnMut(B, Self::Item) -> FoldWhile<B>,
fn fold_while<B, F>(&mut self, init: B, f: F) -> FoldWhile<B>where Self: Sized, F: FnMut(B, Self::Item) -> FoldWhile<B>,
An iterator method that applies a function, producing a single, final value. Read more
source§fn sum1<S>(self) -> Option<S>where
Self: Sized,
S: Sum<Self::Item>,
fn sum1<S>(self) -> Option<S>where Self: Sized, S: Sum<Self::Item>,
Iterate over the entire iterator and add all the elements. Read more
source§fn product1<P>(self) -> Option<P>where
Self: Sized,
P: Product<Self::Item>,
fn product1<P>(self) -> Option<P>where Self: Sized, P: Product<Self::Item>,
Iterate over the entire iterator and multiply all the elements. Read more
source§fn sorted_unstable(self) -> IntoIter<Self::Item, Global>where
Self: Sized,
Self::Item: Ord,
fn sorted_unstable(self) -> IntoIter<Self::Item, Global>where Self: Sized, Self::Item: Ord,
Sort all iterator elements into a new iterator in ascending order. Read more
source§fn sorted_unstable_by<F>(self, cmp: F) -> IntoIter<Self::Item, Global>where
Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn sorted_unstable_by<F>(self, cmp: F) -> IntoIter<Self::Item, Global>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Sort all iterator elements into a new iterator in ascending order. Read more
source§fn sorted_unstable_by_key<K, F>(self, f: F) -> IntoIter<Self::Item, Global>where
Self: Sized,
K: Ord,
F: FnMut(&Self::Item) -> K,
fn sorted_unstable_by_key<K, F>(self, f: F) -> IntoIter<Self::Item, Global>where Self: Sized, K: Ord, F: FnMut(&Self::Item) -> K,
Sort all iterator elements into a new iterator in ascending order. Read more
source§fn sorted(self) -> IntoIter<Self::Item, Global>where
Self: Sized,
Self::Item: Ord,
fn sorted(self) -> IntoIter<Self::Item, Global>where Self: Sized, Self::Item: Ord,
Sort all iterator elements into a new iterator in ascending order. Read more
source§fn sorted_by<F>(self, cmp: F) -> IntoIter<Self::Item, Global>where
Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn sorted_by<F>(self, cmp: F) -> IntoIter<Self::Item, Global>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Sort all iterator elements into a new iterator in ascending order. Read more
source§fn sorted_by_key<K, F>(self, f: F) -> IntoIter<Self::Item, Global>where
Self: Sized,
K: Ord,
F: FnMut(&Self::Item) -> K,
fn sorted_by_key<K, F>(self, f: F) -> IntoIter<Self::Item, Global>where Self: Sized, K: Ord, F: FnMut(&Self::Item) -> K,
Sort all iterator elements into a new iterator in ascending order. Read more
source§fn sorted_by_cached_key<K, F>(self, f: F) -> IntoIter<Self::Item, Global>where
Self: Sized,
K: Ord,
F: FnMut(&Self::Item) -> K,
fn sorted_by_cached_key<K, F>(self, f: F) -> IntoIter<Self::Item, Global>where Self: Sized, K: Ord, F: FnMut(&Self::Item) -> K,
Sort all iterator elements into a new iterator in ascending order. The key function is
called exactly once per key. Read more
source§fn k_smallest(self, k: usize) -> IntoIter<Self::Item, Global>where
Self: Sized,
Self::Item: Ord,
fn k_smallest(self, k: usize) -> IntoIter<Self::Item, Global>where Self: Sized, Self::Item: Ord,
Sort the k smallest elements into a new iterator, in ascending order. Read more
source§fn partition_map<A, B, F, L, R>(self, predicate: F) -> (A, B)where
Self: Sized,
F: FnMut(Self::Item) -> Either<L, R>,
A: Default + Extend<L>,
B: Default + Extend<R>,
fn partition_map<A, B, F, L, R>(self, predicate: F) -> (A, B)where Self: Sized, F: FnMut(Self::Item) -> Either<L, R>, A: Default + Extend<L>, B: Default + Extend<R>,
Collect all iterator elements into one of two
partitions. Unlike
Iterator::partition
, each partition may
have a distinct type. Read moresource§fn partition_result<A, B, T, E>(self) -> (A, B)where
Self: Iterator<Item = Result<T, E>> + Sized,
A: Default + Extend<T>,
B: Default + Extend<E>,
fn partition_result<A, B, T, E>(self) -> (A, B)where Self: Iterator<Item = Result<T, E>> + Sized, A: Default + Extend<T>, B: Default + Extend<E>,
Partition a sequence of
Result
s into one list of all the Ok
elements
and another list of all the Err
elements. Read moresource§fn into_group_map<K, V>(self) -> HashMap<K, Vec<V, Global>, RandomState>where
Self: Iterator<Item = (K, V)> + Sized,
K: Hash + Eq,
fn into_group_map<K, V>(self) -> HashMap<K, Vec<V, Global>, RandomState>where Self: Iterator<Item = (K, V)> + Sized, K: Hash + Eq,
Return a
HashMap
of keys mapped to Vec
s of values. Keys and values
are taken from (Key, Value)
tuple pairs yielded by the input iterator. Read moresource§fn into_group_map_by<K, V, F>(
self,
f: F
) -> HashMap<K, Vec<V, Global>, RandomState>where
Self: Iterator<Item = V> + Sized,
K: Hash + Eq,
F: Fn(&V) -> K,
fn into_group_map_by<K, V, F>( self, f: F ) -> HashMap<K, Vec<V, Global>, RandomState>where Self: Iterator<Item = V> + Sized, K: Hash + Eq, F: Fn(&V) -> K,
Return an
Iterator
on a HashMap
. Keys mapped to Vec
s of values. The key is specified
in the closure. Read moresource§fn into_grouping_map<K, V>(self) -> GroupingMap<Self>where
Self: Iterator<Item = (K, V)> + Sized,
K: Hash + Eq,
fn into_grouping_map<K, V>(self) -> GroupingMap<Self>where Self: Iterator<Item = (K, V)> + Sized, K: Hash + Eq,
Constructs a
GroupingMap
to be used later with one of the efficient
group-and-fold operations it allows to perform. Read moresource§fn into_grouping_map_by<K, V, F>(
self,
key_mapper: F
) -> GroupingMap<MapForGrouping<Self, F>>where
Self: Iterator<Item = V> + Sized,
K: Hash + Eq,
F: FnMut(&V) -> K,
fn into_grouping_map_by<K, V, F>( self, key_mapper: F ) -> GroupingMap<MapForGrouping<Self, F>>where Self: Iterator<Item = V> + Sized, K: Hash + Eq, F: FnMut(&V) -> K,
Constructs a
GroupingMap
to be used later with one of the efficient
group-and-fold operations it allows to perform. Read moresource§fn min_set(self) -> Vec<Self::Item, Global>where
Self: Sized,
Self::Item: Ord,
fn min_set(self) -> Vec<Self::Item, Global>where Self: Sized, Self::Item: Ord,
Return all minimum elements of an iterator. Read more
source§fn min_set_by<F>(self, compare: F) -> Vec<Self::Item, Global>where
Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn min_set_by<F>(self, compare: F) -> Vec<Self::Item, Global>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Return all minimum elements of an iterator, as determined by
the specified function. Read more
source§fn min_set_by_key<K, F>(self, key: F) -> Vec<Self::Item, Global>where
Self: Sized,
K: Ord,
F: FnMut(&Self::Item) -> K,
fn min_set_by_key<K, F>(self, key: F) -> Vec<Self::Item, Global>where Self: Sized, K: Ord, F: FnMut(&Self::Item) -> K,
Return all minimum elements of an iterator, as determined by
the specified function. Read more
source§fn max_set(self) -> Vec<Self::Item, Global>where
Self: Sized,
Self::Item: Ord,
fn max_set(self) -> Vec<Self::Item, Global>where Self: Sized, Self::Item: Ord,
Return all maximum elements of an iterator. Read more
source§fn max_set_by<F>(self, compare: F) -> Vec<Self::Item, Global>where
Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn max_set_by<F>(self, compare: F) -> Vec<Self::Item, Global>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Return all maximum elements of an iterator, as determined by
the specified function. Read more
source§fn max_set_by_key<K, F>(self, key: F) -> Vec<Self::Item, Global>where
Self: Sized,
K: Ord,
F: FnMut(&Self::Item) -> K,
fn max_set_by_key<K, F>(self, key: F) -> Vec<Self::Item, Global>where Self: Sized, K: Ord, F: FnMut(&Self::Item) -> K,
Return all maximum elements of an iterator, as determined by
the specified function. Read more
source§fn minmax(self) -> MinMaxResult<Self::Item>where
Self: Sized,
Self::Item: PartialOrd<Self::Item>,
fn minmax(self) -> MinMaxResult<Self::Item>where Self: Sized, Self::Item: PartialOrd<Self::Item>,
Return the minimum and maximum elements in the iterator. Read more
source§fn minmax_by_key<K, F>(self, key: F) -> MinMaxResult<Self::Item>where
Self: Sized,
K: PartialOrd<K>,
F: FnMut(&Self::Item) -> K,
fn minmax_by_key<K, F>(self, key: F) -> MinMaxResult<Self::Item>where Self: Sized, K: PartialOrd<K>, F: FnMut(&Self::Item) -> K,
Return the minimum and maximum element of an iterator, as determined by
the specified function. Read more
source§fn minmax_by<F>(self, compare: F) -> MinMaxResult<Self::Item>where
Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn minmax_by<F>(self, compare: F) -> MinMaxResult<Self::Item>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Return the minimum and maximum element of an iterator, as determined by
the specified comparison function. Read more
source§fn position_max(self) -> Option<usize>where
Self: Sized,
Self::Item: Ord,
fn position_max(self) -> Option<usize>where Self: Sized, Self::Item: Ord,
Return the position of the maximum element in the iterator. Read more
source§fn position_max_by_key<K, F>(self, key: F) -> Option<usize>where
Self: Sized,
K: Ord,
F: FnMut(&Self::Item) -> K,
fn position_max_by_key<K, F>(self, key: F) -> Option<usize>where Self: Sized, K: Ord, F: FnMut(&Self::Item) -> K,
Return the position of the maximum element in the iterator, as
determined by the specified function. Read more
source§fn position_max_by<F>(self, compare: F) -> Option<usize>where
Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn position_max_by<F>(self, compare: F) -> Option<usize>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Return the position of the maximum element in the iterator, as
determined by the specified comparison function. Read more
source§fn position_min(self) -> Option<usize>where
Self: Sized,
Self::Item: Ord,
fn position_min(self) -> Option<usize>where Self: Sized, Self::Item: Ord,
Return the position of the minimum element in the iterator. Read more
source§fn position_min_by_key<K, F>(self, key: F) -> Option<usize>where
Self: Sized,
K: Ord,
F: FnMut(&Self::Item) -> K,
fn position_min_by_key<K, F>(self, key: F) -> Option<usize>where Self: Sized, K: Ord, F: FnMut(&Self::Item) -> K,
Return the position of the minimum element in the iterator, as
determined by the specified function. Read more
source§fn position_min_by<F>(self, compare: F) -> Option<usize>where
Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn position_min_by<F>(self, compare: F) -> Option<usize>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Return the position of the minimum element in the iterator, as
determined by the specified comparison function. Read more
source§fn position_minmax(self) -> MinMaxResult<usize>where
Self: Sized,
Self::Item: PartialOrd<Self::Item>,
fn position_minmax(self) -> MinMaxResult<usize>where Self: Sized, Self::Item: PartialOrd<Self::Item>,
Return the positions of the minimum and maximum elements in
the iterator. Read more
source§fn position_minmax_by_key<K, F>(self, key: F) -> MinMaxResult<usize>where
Self: Sized,
K: PartialOrd<K>,
F: FnMut(&Self::Item) -> K,
fn position_minmax_by_key<K, F>(self, key: F) -> MinMaxResult<usize>where Self: Sized, K: PartialOrd<K>, F: FnMut(&Self::Item) -> K,
Return the postions of the minimum and maximum elements of an
iterator, as determined by the specified function. Read more
source§fn position_minmax_by<F>(self, compare: F) -> MinMaxResult<usize>where
Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn position_minmax_by<F>(self, compare: F) -> MinMaxResult<usize>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Return the postions of the minimum and maximum elements of an
iterator, as determined by the specified comparison function. Read more
source§fn exactly_one(self) -> Result<Self::Item, ExactlyOneError<Self>>where
Self: Sized,
fn exactly_one(self) -> Result<Self::Item, ExactlyOneError<Self>>where Self: Sized,
If the iterator yields exactly one element, that element will be returned, otherwise
an error will be returned containing an iterator that has the same output as the input
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source§fn at_most_one(self) -> Result<Option<Self::Item>, ExactlyOneError<Self>>where
Self: Sized,
fn at_most_one(self) -> Result<Option<Self::Item>, ExactlyOneError<Self>>where Self: Sized,
If the iterator yields no elements, Ok(None) will be returned. If the iterator yields
exactly one element, that element will be returned, otherwise an error will be returned
containing an iterator that has the same output as the input iterator. Read more
source§fn multipeek(self) -> MultiPeek<Self>where
Self: Sized,
fn multipeek(self) -> MultiPeek<Self>where Self: Sized,
An iterator adaptor that allows the user to peek at multiple
.next()
values without advancing the base iterator. Read moresource§fn counts(self) -> HashMap<Self::Item, usize, RandomState>where
Self: Sized,
Self::Item: Eq + Hash,
fn counts(self) -> HashMap<Self::Item, usize, RandomState>where Self: Sized, Self::Item: Eq + Hash,
Collect the items in this iterator and return a
HashMap
which
contains each item that appears in the iterator and the number
of times it appears. Read moresource§fn counts_by<K, F>(self, f: F) -> HashMap<K, usize, RandomState>where
Self: Sized,
K: Eq + Hash,
F: FnMut(Self::Item) -> K,
fn counts_by<K, F>(self, f: F) -> HashMap<K, usize, RandomState>where Self: Sized, K: Eq + Hash, F: FnMut(Self::Item) -> K,
Collect the items in this iterator and return a
HashMap
which
contains each item that appears in the iterator and the number
of times it appears,
determining identity using a keying function. Read moresource§fn multiunzip<FromI>(self) -> FromIwhere
Self: Sized + MultiUnzip<FromI>,
fn multiunzip<FromI>(self) -> FromIwhere Self: Sized + MultiUnzip<FromI>,
Converts an iterator of tuples into a tuple of containers. Read more