Struct streaming_iterator::Chain

pub struct Chain<A, B> { /* private fields */ }

A streaming iterator that concatenates two streaming iterators

Trait Implementations

impl<A: Debug, B: Debug> Debug for Chain<A, B>

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

Formats the value using the given formatter.

impl<A, B> DoubleEndedStreamingIterator for Chain<A, B>

where A: DoubleEndedStreamingIterator, B: DoubleEndedStreamingIterator<Item = A::Item>,

fn advance_back(&mut self)

Advances the iterator to the next element from the back of the iterator.

fn rfold<Acc, F>(self, init: Acc, f: F) -> Acc

where Self: Sized, F: FnMut(Acc, &Self::Item) -> Acc,

Reduces the iterator’s elements to a single, final value, starting from the back.

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

Advances the iterator and returns the next value from the back.

impl<A, B> StreamingIterator for Chain<A, B>

where A: StreamingIterator, B: StreamingIterator<Item = A::Item>,

type Item = <A as StreamingIterator>::Item

The type of the elements being iterated over.

fn advance(&mut self)

Advances the iterator to the next element.

fn get(&self) -> Option<&Self::Item>

Returns a reference to the current element of the iterator.

fn fold<Acc, F>(self, init: Acc, f: F) -> Acc

where Self: Sized, F: FnMut(Acc, &Self::Item) -> Acc,

Reduces the iterator’s elements to a single, final value.

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

Advances the iterator and returns the next value.

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

Returns the bounds on the remaining length of the iterator.

fn all<F>(&mut self, f: F) -> bool

where Self: Sized, F: FnMut(&Self::Item) -> bool,

Determines if all elements of the iterator satisfy a predicate.

fn any<F>(&mut self, f: F) -> bool

where Self: Sized, F: FnMut(&Self::Item) -> bool,

Determines if any elements of the iterator satisfy a predicate.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Borrows an iterator, rather than consuming it.

fn chain<I>(self, other: I) -> Chain<Self, I>

where Self: Sized, I: StreamingIterator<Item = Self::Item> + Sized,

Consumes two iterators and returns a new iterator that iterates over both in sequence.

fn count(self) -> usize

where Self: Sized,

Consumes the iterator, counting the number of remaining elements and returning it.

fn filter<F>(self, f: F) -> Filter<Self, F>

where Self: Sized, F: FnMut(&Self::Item) -> bool,

Creates an iterator which uses a closure to determine if an element should be yielded.

fn filter_map<B, F>(self, f: F) -> FilterMap<Self, B, F>

where Self: Sized, F: FnMut(&Self::Item) -> Option<B>,

Creates an iterator which both filters and maps by applying a closure to elements.

fn flat_map<J, F>(self, f: F) -> FlatMap<Self, J, F>

where Self: Sized, J: StreamingIterator, F: FnMut(&Self::Item) -> J,

Creates an iterator which flattens iterators obtained by applying a closure to elements. Note that the returned iterators must be streaming iterators.

fn filter_map_deref<B, F>(self, f: F) -> FilterMapDeref<Self, F>

where Self: Sized, F: FnMut(&Self::Item) -> Option<B>,

Creates a regular, non-streaming iterator which both filters and maps by applying a closure to elements.

fn find<F>(&mut self, f: F) -> Option<&Self::Item>

where Self: Sized, F: FnMut(&Self::Item) -> bool,

Returns the first element of the iterator that satisfies the predicate.

fn fuse(self) -> Fuse<Self>

where Self: Sized,

Creates an iterator which is “well behaved” at the beginning and end of iteration.

fn inspect<F>(self, f: F) -> Inspect<Self, F>

where F: FnMut(&Self::Item), Self: Sized,

Call a closure on each element, passing the element on. The closure is called upon calls to advance or advance_back, and exactly once per element regardless of how many times (if any) get is called.

fn map<B, F>(self, f: F) -> Map<Self, B, F>

where Self: Sized, F: FnMut(&Self::Item) -> B,

Creates an iterator which transforms elements of this iterator by passing them to a closure.

fn map_deref<B, F>(self, f: F) -> MapDeref<Self, F>

where Self: Sized, F: FnMut(&Self::Item) -> B,

Creates a regular, non-streaming iterator which transforms elements of this iterator by passing them to a closure.

fn map_ref<B: ?Sized, F>(self, f: F) -> MapRef<Self, F>

where Self: Sized, F: Fn(&Self::Item) -> &B,

Creates an iterator which transforms elements of this iterator by passing them to a closure.

fn nth(&mut self, n: usize) -> Option<&Self::Item>

Consumes the first n elements of the iterator, returning the next one.

fn position<F>(&mut self, f: F) -> Option<usize>

where Self: Sized, F: FnMut(&Self::Item) -> bool,

Returns the index of the first element of the iterator matching a predicate.

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

where Self: Sized,

Creates an iterator which skips the first n elements.

fn skip_while<F>(self, f: F) -> SkipWhile<Self, F>

where Self: Sized, F: FnMut(&Self::Item) -> bool,

Creates an iterator that skips initial elements matching a predicate.

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

where Self: Sized,

Creates an iterator which only returns the first n elements.

fn take_while<F>(self, f: F) -> TakeWhile<Self, F>

where Self: Sized, F: FnMut(&Self::Item) -> bool,

Creates an iterator which only returns initial elements matching a predicate.

fn for_each<F>(self, f: F)

where Self: Sized, F: FnMut(&Self::Item),

Calls a closure on each element of an iterator.