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stabilize vec_drain_as_slice

This commit is contained in:
CAD97 2020-05-25 15:33:34 -04:00
parent a0f06d11ae
commit 738f8487fd
1 changed files with 8 additions and 2 deletions
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10
src/liballoc/vec.rs
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@ -2747,19 +2747,25 @@ impl<'a, T> Drain<'a, T> {
/// # Examples
///
/// ```
/// # #![feature(vec_drain_as_slice)]
/// let mut vec = vec!['a', 'b', 'c'];
/// let mut drain = vec.drain(..);
/// assert_eq!(drain.as_slice(), &['a', 'b', 'c']);
/// let _ = drain.next().unwrap();
/// assert_eq!(drain.as_slice(), &['b', 'c']);
/// ```
#[unstable(feature = "vec_drain_as_slice", reason = "recently added", issue = "58957")]
#[stable(feature = "vec_drain_as_slice", since = "1.46.0")]
pub fn as_slice(&self) -> &[T] {
self.iter.as_slice()
}
}
#[stable(feature = "vec_drain_as_slice", since = "1.46.0")]
impl<'a, T> AsRef<[T]> for Drain<'a, T> {
fn as_ref(&self) -> &[T] {
self.as_slice()
}
}
#[stable(feature = "drain", since = "1.6.0")]
unsafe impl<T: Sync> Sync for Drain<'_, T> {}
#[stable(feature = "drain", since = "1.6.0")]