1.26.0[−][src]Trait core::iter::FusedIterator
An iterator that always continues to yield None
when exhausted.
Calling next on a fused iterator that has returned None
once is guaranteed
to return None
again. This trait should be implemented by all iterators
that behave this way because it allows optimizing Iterator::fuse
.
Note: In general, you should not use FusedIterator
in generic bounds if
you need a fused iterator. Instead, you should just call Iterator::fuse
on the iterator. If the iterator is already fused, the additional Fuse
wrapper will be a no-op with no performance penalty.
Implementors
impl FusedIterator for core::ascii::EscapeDefault
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impl FusedIterator for core::char::EscapeDebug
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impl FusedIterator for core::char::EscapeDefault
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impl FusedIterator for core::char::EscapeUnicode
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impl FusedIterator for ToLowercase
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impl FusedIterator for ToUppercase
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impl<'_> FusedIterator for Bytes<'_>
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impl<'_> FusedIterator for CharIndices<'_>
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impl<'_> FusedIterator for Chars<'_>
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impl<'_> FusedIterator for EncodeUtf16<'_>
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impl<'_> FusedIterator for Lines<'_>
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impl<'_> FusedIterator for LinesAny<'_>
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impl<'_> FusedIterator for SplitAsciiWhitespace<'_>
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impl<'_> FusedIterator for SplitWhitespace<'_>
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impl<'_, A> FusedIterator for core::option::Iter<'_, A>
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impl<'_, A> FusedIterator for core::option::IterMut<'_, A>
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impl<'_, I: FusedIterator + ?Sized> FusedIterator for &'_ mut I
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impl<'_, T> FusedIterator for core::result::Iter<'_, T>
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impl<'_, T> FusedIterator for core::result::IterMut<'_, T>
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impl<'_, T> FusedIterator for Chunks<'_, T>
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impl<'_, T> FusedIterator for ChunksExact<'_, T>
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impl<'_, T> FusedIterator for ChunksExactMut<'_, T>
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impl<'_, T> FusedIterator for ChunksMut<'_, T>
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impl<'_, T> FusedIterator for core::slice::Iter<'_, T>
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impl<'_, T> FusedIterator for core::slice::IterMut<'_, T>
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impl<'_, T> FusedIterator for RChunks<'_, T>
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impl<'_, T> FusedIterator for RChunksExact<'_, T>
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impl<'_, T> FusedIterator for RChunksExactMut<'_, T>
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impl<'_, T> FusedIterator for RChunksMut<'_, T>
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impl<'_, T> FusedIterator for Windows<'_, T>
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impl<'_, T, P> FusedIterator for core::slice::RSplit<'_, T, P> where
P: FnMut(&T) -> bool,
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P: FnMut(&T) -> bool,
impl<'_, T, P> FusedIterator for RSplitMut<'_, T, P> where
P: FnMut(&T) -> bool,
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P: FnMut(&T) -> bool,
impl<'_, T, P> FusedIterator for core::slice::Split<'_, T, P> where
P: FnMut(&T) -> bool,
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P: FnMut(&T) -> bool,
impl<'_, T, P> FusedIterator for SplitMut<'_, T, P> where
P: FnMut(&T) -> bool,
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P: FnMut(&T) -> bool,
impl<'a> FusedIterator for core::str::EscapeDebug<'a>
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impl<'a> FusedIterator for core::str::EscapeDefault<'a>
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impl<'a> FusedIterator for core::str::EscapeUnicode<'a>
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impl<'a, I, T: 'a> FusedIterator for Cloned<I> where
I: FusedIterator<Item = &'a T>,
T: Clone,
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I: FusedIterator<Item = &'a T>,
T: Clone,
impl<'a, I, T: 'a> FusedIterator for Copied<I> where
I: FusedIterator<Item = &'a T>,
T: Copy,
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I: FusedIterator<Item = &'a T>,
T: Copy,
impl<'a, P> FusedIterator for RMatchIndices<'a, P> where
P: Pattern<'a, Searcher: ReverseSearcher<'a>>,
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P: Pattern<'a, Searcher: ReverseSearcher<'a>>,
impl<'a, P> FusedIterator for RMatches<'a, P> where
P: Pattern<'a, Searcher: ReverseSearcher<'a>>,
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P: Pattern<'a, Searcher: ReverseSearcher<'a>>,
impl<'a, P> FusedIterator for core::str::RSplit<'a, P> where
P: Pattern<'a, Searcher: ReverseSearcher<'a>>,
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P: Pattern<'a, Searcher: ReverseSearcher<'a>>,
impl<'a, P> FusedIterator for core::str::RSplitN<'a, P> where
P: Pattern<'a, Searcher: ReverseSearcher<'a>>,
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P: Pattern<'a, Searcher: ReverseSearcher<'a>>,
impl<'a, P> FusedIterator for RSplitTerminator<'a, P> where
P: Pattern<'a, Searcher: ReverseSearcher<'a>>,
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P: Pattern<'a, Searcher: ReverseSearcher<'a>>,
impl<'a, P: Pattern<'a>> FusedIterator for MatchIndices<'a, P>
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impl<'a, P: Pattern<'a>> FusedIterator for Matches<'a, P>
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impl<'a, P: Pattern<'a>> FusedIterator for core::str::Split<'a, P>
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impl<'a, P: Pattern<'a>> FusedIterator for core::str::SplitN<'a, P>
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impl<'a, P: Pattern<'a>> FusedIterator for SplitTerminator<'a, P>
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impl<'a, T, P> FusedIterator for core::slice::RSplitN<'a, T, P> where
P: FnMut(&T) -> bool,
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P: FnMut(&T) -> bool,
impl<'a, T, P> FusedIterator for RSplitNMut<'a, T, P> where
P: FnMut(&T) -> bool,
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P: FnMut(&T) -> bool,
impl<'a, T, P> FusedIterator for core::slice::SplitN<'a, T, P> where
P: FnMut(&T) -> bool,
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P: FnMut(&T) -> bool,
impl<'a, T, P> FusedIterator for SplitNMut<'a, T, P> where
P: FnMut(&T) -> bool,
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P: FnMut(&T) -> bool,
impl<A> FusedIterator for core::option::IntoIter<A>
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impl<A, B> FusedIterator for Chain<A, B> where
A: FusedIterator,
B: FusedIterator<Item = A::Item>,
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A: FusedIterator,
B: FusedIterator<Item = A::Item>,
impl<A, B> FusedIterator for Zip<A, B> where
A: FusedIterator,
B: FusedIterator,
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A: FusedIterator,
B: FusedIterator,
impl<A, F: FnMut() -> A> FusedIterator for RepeatWith<F>
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impl<A, F: FnOnce() -> A> FusedIterator for OnceWith<F>
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impl<A: Clone> FusedIterator for Repeat<A>
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impl<A: Step> FusedIterator for Range<A>
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impl<A: Step> FusedIterator for RangeFrom<A>
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impl<A: Step> FusedIterator for RangeInclusive<A>
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impl<B, I: FusedIterator, F> FusedIterator for FilterMap<I, F> where
F: FnMut(I::Item) -> Option<B>,
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F: FnMut(I::Item) -> Option<B>,
impl<B, I: FusedIterator, F> FusedIterator for Map<I, F> where
F: FnMut(I::Item) -> B,
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F: FnMut(I::Item) -> B,
impl<I> FusedIterator for Cycle<I> where
I: Clone + Iterator,
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I: Clone + Iterator,
impl<I> FusedIterator for Enumerate<I> where
I: FusedIterator,
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I: FusedIterator,
impl<I> FusedIterator for Fuse<I> where
I: Iterator,
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I: Iterator,
impl<I> FusedIterator for Rev<I> where
I: FusedIterator + DoubleEndedIterator,
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I: FusedIterator + DoubleEndedIterator,
impl<I> FusedIterator for Skip<I> where
I: FusedIterator,
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I: FusedIterator,
impl<I> FusedIterator for Take<I> where
I: FusedIterator,
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I: FusedIterator,
impl<I, P> FusedIterator for SkipWhile<I, P> where
I: FusedIterator,
P: FnMut(&I::Item) -> bool,
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I: FusedIterator,
P: FnMut(&I::Item) -> bool,
impl<I, P> FusedIterator for TakeWhile<I, P> where
I: FusedIterator,
P: FnMut(&I::Item) -> bool,
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I: FusedIterator,
P: FnMut(&I::Item) -> bool,
impl<I, U> FusedIterator for Flatten<I> where
I: FusedIterator<Item: IntoIterator<IntoIter = U, Item = U::Item>>,
U: Iterator,
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I: FusedIterator<Item: IntoIterator<IntoIter = U, Item = U::Item>>,
U: Iterator,
impl<I, U, F> FusedIterator for FlatMap<I, U, F> where
I: FusedIterator,
U: IntoIterator,
F: FnMut(I::Item) -> U,
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I: FusedIterator,
U: IntoIterator,
F: FnMut(I::Item) -> U,
impl<I: FusedIterator> FusedIterator for Peekable<I>
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impl<I: FusedIterator, F> FusedIterator for Inspect<I, F> where
F: FnMut(&I::Item),
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F: FnMut(&I::Item),
impl<I: FusedIterator, P> FusedIterator for Filter<I, P> where
P: FnMut(&I::Item) -> bool,
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P: FnMut(&I::Item) -> bool,
impl<T> FusedIterator for Empty<T>
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impl<T> FusedIterator for Once<T>
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impl<T> FusedIterator for core::result::IntoIter<T>
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impl<T, F> FusedIterator for Successors<T, F> where
F: FnMut(&T) -> Option<T>,
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F: FnMut(&T) -> Option<T>,