This commit is contained in:
Alex Burka 2016-05-12 10:59:37 -04:00
parent df4fe5fbd4
commit b9fce76f47

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@ -525,14 +525,16 @@ impl<I: ExactSizeIterator + ?Sized> ExactSizeIterator for Box<I> {}
/// }
/// ```
#[rustc_paren_sugar]
#[unstable(feature = "fnbox", reason = "will be deprecated if and when Box<FnOnce> becomes usable", issue = "28796")]
#[unstable(feature = "fnbox",
reason = "will be deprecated if and when Box<FnOnce> becomes usable", issue = "28796")]
pub trait FnBox<A> {
type Output;
fn call_box(self: Box<Self>, args: A) -> Self::Output;
}
#[unstable(feature = "fnbox", reason = "will be deprecated if and when Box<FnOnce> becomes usable", issue = "28796")]
#[unstable(feature = "fnbox",
reason = "will be deprecated if and when Box<FnOnce> becomes usable", issue = "28796")]
impl<A, F> FnBox<A> for F where F: FnOnce<A>
{
type Output = F::Output;
@ -542,7 +544,8 @@ fn call_box(self: Box<F>, args: A) -> F::Output {
}
}
#[unstable(feature = "fnbox", reason = "will be deprecated if and when Box<FnOnce> becomes usable", issue = "28796")]
#[unstable(feature = "fnbox",
reason = "will be deprecated if and when Box<FnOnce> becomes usable", issue = "28796")]
impl<'a, A, R> FnOnce<A> for Box<FnBox<A, Output = R> + 'a> {
type Output = R;
@ -551,7 +554,8 @@ extern "rust-call" fn call_once(self, args: A) -> R {
}
}
#[unstable(feature = "fnbox", reason = "will be deprecated if and when Box<FnOnce> becomes usable", issue = "28796")]
#[unstable(feature = "fnbox",
reason = "will be deprecated if and when Box<FnOnce> becomes usable", issue = "28796")]
impl<'a, A, R> FnOnce<A> for Box<FnBox<A, Output = R> + Send + 'a> {
type Output = R;