diff options
Diffstat (limited to 'src/liballoc')
| -rw-r--r-- | src/liballoc/boxed.rs | 18 |
1 files changed, 1 insertions, 17 deletions
diff --git a/src/liballoc/boxed.rs b/src/liballoc/boxed.rs index 864add1ecfe..d4fe8be36d6 100644 --- a/src/liballoc/boxed.rs +++ b/src/liballoc/boxed.rs @@ -700,7 +700,7 @@ impl<I: FusedIterator + ?Sized> FusedIterator for Box<I> {} impl<A, F: FnOnce<A> + ?Sized> FnOnce<A> for Box<F> { type Output = <F as FnOnce<A>>::Output; - default extern "rust-call" fn call_once(self, args: A) -> Self::Output { + extern "rust-call" fn call_once(self, args: A) -> Self::Output { <F as FnOnce<A>>::call_once(*self, args) } } @@ -777,22 +777,6 @@ impl<A, F> FnBox<A> for F } } -#[unstable(feature = "fnbox", - reason = "will be deprecated if and when `Box<FnOnce>` becomes usable", issue = "28796")] -impl<A, R> FnOnce<A> for Box<dyn FnBox<A, Output = R> + '_> { - extern "rust-call" fn call_once(self, args: A) -> R { - self.call_box(args) - } -} - -#[unstable(feature = "fnbox", - reason = "will be deprecated if and when `Box<FnOnce>` becomes usable", issue = "28796")] -impl<A, R> FnOnce<A> for Box<dyn FnBox<A, Output = R> + Send + '_> { - extern "rust-call" fn call_once(self, args: A) -> R { - self.call_box(args) - } -} - #[unstable(feature = "coerce_unsized", issue = "27732")] impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<Box<U>> for Box<T> {} |