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Document from_iter for DoubleEndedStream

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This commit is contained in:
Felipe Sere 2019-11-22 17:24:52 +00:00
parent 892c6008c2
commit 6e8236d0e1
1 changed files with 19 additions and 0 deletions
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19
src/stream/double_ended/from_iter.rs
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@ -15,6 +15,25 @@ pub struct FromIter<T> {
inner: Vec<T>, inner: Vec<T>,
} }
/// Converts an iterator into a double-ended stream.
///
/// # Examples
///
/// ```
/// # async_std::task::block_on(async {
/// #
/// use async_std::stream::double_ended::{self, DoubleEndedStreamExt};
///
/// let mut s = double_ended::from_iter(vec![0, 1, 2, 3]);
///
/// assert_eq!(s.next_back().await, Some(3));
/// assert_eq!(s.next_back().await, Some(2));
/// assert_eq!(s.next_back().await, Some(1));
/// assert_eq!(s.next_back().await, Some(0));
/// assert_eq!(s.next_back().await, None);
/// #
/// # })
/// ```
pub fn from_iter<I: IntoIterator>(iter: I) -> FromIter<I::Item> { pub fn from_iter<I: IntoIterator>(iter: I) -> FromIter<I::Item> {
FromIter { inner: iter.into_iter().collect() } FromIter { inner: iter.into_iter().collect() }
} }