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Auto merge of #28738 - apasel422:peekable, r=alexcrichton

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bors
2015-09-30 15:22:17 +00:00
parent 3e6d7243ae 532ee3c6d6
commit 437d70a54b
1 changed files with 1 additions and 9 deletions
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10
src/libcore/iter.rs
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@@ -1862,6 +1862,7 @@ 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.
#[derive(Clone)]
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"] #[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")] #[stable(feature = "rust1", since = "1.0.0")]
pub struct Peekable<I: Iterator> { pub struct Peekable<I: Iterator> {
@@ -1869,15 +1870,6 @@ pub struct Peekable<I: Iterator> {
peeked: Option<I::Item>, peeked: Option<I::Item>,
} }
impl<I: Iterator + Clone> Clone for Peekable<I> where I::Item: Clone {
fn clone(&self) -> Peekable<I> {
Peekable {
iter: self.iter.clone(),
peeked: self.peeked.clone(),
}
}
}
#[stable(feature = "rust1", since = "1.0.0")] #[stable(feature = "rust1", since = "1.0.0")]
impl<I: Iterator> Iterator for Peekable<I> { impl<I: Iterator> Iterator for Peekable<I> {
type Item = I::Item; type Item = I::Item;