diff options
| -rw-r--r-- | src/libcore/iter.rs | 157 |
1 files changed, 137 insertions, 20 deletions
diff --git a/src/libcore/iter.rs b/src/libcore/iter.rs index 2f12579d674..d54817f5201 100644 --- a/src/libcore/iter.rs +++ b/src/libcore/iter.rs @@ -1618,7 +1618,13 @@ impl<B, I: ExactSizeIterator, F> ExactSizeIterator for Map<I, F> where impl<A, B> ExactSizeIterator for Zip<A, B> where A: ExactSizeIterator, B: ExactSizeIterator {} -/// An double-ended iterator with the direction inverted +/// An double-ended iterator with the direction inverted. +/// +/// This `struct` is created by the [`rev()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`rev()`]: trait.Iterator.html#method.rev +/// [`Iterator`]: trait.Iterator.html #[derive(Clone)] #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] @@ -1642,7 +1648,13 @@ impl<I> DoubleEndedIterator for Rev<I> where I: DoubleEndedIterator { fn next_back(&mut self) -> Option<<I as Iterator>::Item> { self.iter.next() } } -/// An iterator that clones the elements of an underlying iterator +/// An iterator that clones the elements of an underlying iterator. +/// +/// This `struct` is created by the [`cloned()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`cloned()`]: trait.Iterator.html#method.cloned +/// [`Iterator`]: trait.Iterator.html #[stable(feature = "iter_cloned", since = "1.1.0")] #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[derive(Clone)] @@ -1679,7 +1691,13 @@ impl<'a, I, T: 'a> ExactSizeIterator for Cloned<I> where I: ExactSizeIterator<Item=&'a T>, T: Clone {} -/// An iterator that repeats endlessly +/// An iterator that repeats endlessly. +/// +/// This `struct` is created by the [`cycle()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`cycle()`]: trait.Iterator.html#method.cycle +/// [`Iterator`]: trait.Iterator.html #[derive(Clone)] #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] @@ -1711,7 +1729,13 @@ impl<I> Iterator for Cycle<I> where I: Clone + Iterator { } } -/// An iterator that strings two iterators together +/// An iterator that strings two iterators together. +/// +/// This `struct` is created by the [`chain()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`chain()`]: trait.Iterator.html#method.chain +/// [`Iterator`]: trait.Iterator.html #[derive(Clone)] #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] @@ -1849,7 +1873,13 @@ impl<A, B> DoubleEndedIterator for Chain<A, B> where } } -/// An iterator that iterates two other iterators simultaneously +/// An iterator that iterates two other iterators simultaneously. +/// +/// This `struct` is created by the [`zip()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`zip()`]: trait.Iterator.html#method.zip +/// [`Iterator`]: trait.Iterator.html #[derive(Clone)] #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] @@ -1915,7 +1945,13 @@ impl<A, B> DoubleEndedIterator for Zip<A, B> where } } -/// An iterator that maps the values of `iter` with `f` +/// An iterator that maps the values of `iter` with `f`. +/// +/// This `struct` is created by the [`map()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`map()`]: trait.Iterator.html#method.map +/// [`Iterator`]: trait.Iterator.html #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] #[derive(Clone)] @@ -1949,7 +1985,13 @@ impl<B, I: DoubleEndedIterator, F> DoubleEndedIterator for Map<I, F> where } } -/// An iterator that filters the elements of `iter` with `predicate` +/// An iterator that filters the elements of `iter` with `predicate`. +/// +/// This `struct` is created by the [`filter()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`filter()`]: trait.Iterator.html#method.filter +/// [`Iterator`]: trait.Iterator.html #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] #[derive(Clone)] @@ -1994,7 +2036,13 @@ impl<I: DoubleEndedIterator, P> DoubleEndedIterator for Filter<I, P> } } -/// An iterator that uses `f` to both filter and map elements from `iter` +/// An iterator that uses `f` to both filter and map elements from `iter`. +/// +/// This `struct` is created by the [`filter_map()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`filter_map()`]: trait.Iterator.html#method.filter_map +/// [`Iterator`]: trait.Iterator.html #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] #[derive(Clone)] @@ -2041,7 +2089,13 @@ impl<B, I: DoubleEndedIterator, F> DoubleEndedIterator for FilterMap<I, F> } } -/// An iterator that yields the current count and the element during iteration +/// An iterator that yields the current count and the element during iteration. +/// +/// This `struct` is created by the [`enumerate()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`enumerate()`]: trait.Iterator.html#method.enumerate +/// [`Iterator`]: trait.Iterator.html #[derive(Clone)] #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] @@ -2108,7 +2162,14 @@ impl<I> DoubleEndedIterator for Enumerate<I> where } } -/// An iterator with a `peek()` that returns an optional reference to the next element. +/// An iterator with a `peek()` that returns an optional reference to the next +/// element. +/// +/// This `struct` is created by the [`peekable()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`peekable()`]: trait.Iterator.html#method.peekable +/// [`Iterator`]: trait.Iterator.html #[derive(Clone)] #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] @@ -2190,7 +2251,13 @@ impl<I: Iterator> Peekable<I> { } } -/// An iterator that rejects elements while `predicate` is true +/// An iterator that rejects elements while `predicate` is true. +/// +/// This `struct` is created by the [`skip_while()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`skip_while()`]: trait.Iterator.html#method.skip_while +/// [`Iterator`]: trait.Iterator.html #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] #[derive(Clone)] @@ -2224,7 +2291,13 @@ impl<I: Iterator, P> Iterator for SkipWhile<I, P> } } -/// An iterator that only accepts elements while `predicate` is true +/// An iterator that only accepts elements while `predicate` is true. +/// +/// This `struct` is created by the [`take_while()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`take_while()`]: trait.Iterator.html#method.take_while +/// [`Iterator`]: trait.Iterator.html #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] #[derive(Clone)] @@ -2264,6 +2337,12 @@ impl<I: Iterator, P> Iterator for TakeWhile<I, P> } /// An iterator that skips over `n` elements of `iter`. +/// +/// This `struct` is created by the [`skip()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`skip()`]: trait.Iterator.html#method.skip +/// [`Iterator`]: trait.Iterator.html #[derive(Clone)] #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] @@ -2338,6 +2417,12 @@ impl<I> Iterator for Skip<I> where I: Iterator { impl<I> ExactSizeIterator for Skip<I> where I: ExactSizeIterator {} /// An iterator that only iterates over the first `n` iterations of `iter`. +/// +/// This `struct` is created by the [`take()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`take()`]: trait.Iterator.html#method.take +/// [`Iterator`]: trait.Iterator.html #[derive(Clone)] #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] @@ -2393,7 +2478,13 @@ impl<I> Iterator for Take<I> where I: Iterator{ impl<I> ExactSizeIterator for Take<I> where I: ExactSizeIterator {} -/// An iterator to maintain state while iterating another iterator +/// An iterator to maintain state while iterating another iterator. +/// +/// This `struct` is created by the [`scan()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`scan()`]: trait.Iterator.html#method.scan +/// [`Iterator`]: trait.Iterator.html #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] #[derive(Clone)] @@ -2422,9 +2513,14 @@ impl<B, I, St, F> Iterator for Scan<I, St, F> where } } -/// An iterator that maps each element to an iterator, -/// and yields the elements of the produced iterators +/// An iterator that maps each element to an iterator, and yields the elements +/// of the produced iterators. /// +/// This `struct` is created by the [`flat_map()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`flat_map()`]: trait.Iterator.html#method.flat_map +/// [`Iterator`]: trait.Iterator.html #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] #[derive(Clone)] @@ -2493,8 +2589,11 @@ impl<I: DoubleEndedIterator, U, F> DoubleEndedIterator for FlatMap<I, U, F> wher /// An iterator that yields `None` forever after the underlying iterator /// yields `None` once. /// -/// These can be created through -/// [`iter.fuse()`](trait.Iterator.html#method.fuse). +/// This `struct` is created by the [`fuse()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`fuse()`]: trait.Iterator.html#method.fuse +/// [`Iterator`]: trait.Iterator.html #[derive(Clone)] #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] @@ -2574,8 +2673,14 @@ impl<I> DoubleEndedIterator for Fuse<I> where I: DoubleEndedIterator { #[stable(feature = "rust1", since = "1.0.0")] impl<I> ExactSizeIterator for Fuse<I> where I: ExactSizeIterator {} -/// An iterator that calls a function with a reference to each -/// element before yielding it. +/// An iterator that calls a function with a reference to each element before +/// yielding it. +/// +/// This `struct` is created by the [`inspect()`] method on [`Iterator`]. See its +/// documentation for more. +/// +/// [`inspect()`]: trait.Iterator.html#method.inspect +/// [`Iterator`]: trait.Iterator.html #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[stable(feature = "rust1", since = "1.0.0")] #[derive(Clone)] @@ -3009,7 +3114,11 @@ impl<A: Step + One> Iterator for ops::RangeFrom<A> where } } -/// An iterator that repeats an element endlessly +/// An iterator that repeats an element endlessly. +/// +/// This `struct` is created by the [`repeat()`] function. See its documentation for more. +/// +/// [`repeat()`]: fn.repeat.html #[derive(Clone)] #[stable(feature = "rust1", since = "1.0.0")] pub struct Repeat<A> { @@ -3040,6 +3149,10 @@ pub fn repeat<T: Clone>(elt: T) -> Repeat<T> { } /// An iterator that yields nothing. +/// +/// This `struct` is created by the [`empty()`] function. See its documentation for more. +/// +/// [`empty()`]: fn.empty.html #[stable(feature = "iter_empty", since = "1.2.0")] pub struct Empty<T>(marker::PhantomData<T>); @@ -3095,6 +3208,10 @@ pub fn empty<T>() -> Empty<T> { } /// An iterator that yields an element exactly once. +/// +/// This `struct` is created by the [`once()`] function. See its documentation for more. +/// +/// [`once()`]: fn.once.html #[derive(Clone)] #[stable(feature = "iter_once", since = "1.2.0")] pub struct Once<T> { |