stabilize Option::as_(mut_)slice

Author: llogiq

compiler/rustc_hir_typeck/src/lib.rs

@@ -5,7 +5,6 @@
 #![feature(box_patterns)]
 #![feature(min_specialization)]
 #![feature(control_flow_enum)]
-#![feature(option_as_slice)]
 #![recursion_limit = "256"]
 
 #[macro_use]

library/core/src/option.rs

@@ -743,8 +743,6 @@ impl<T> Option<T> {
 /// # Examples
 ///
 /// ```rust
-/// #![feature(option_as_slice)]
-///
 /// assert_eq!(
 /// [Some(1234).as_slice(), None.as_slice()],
 /// [&[1234][..], &[][..]],
@@ -755,15 +753,13 @@ impl<T> Option<T> {
 /// borrowing) [`[_]::first`](slice::first):
 ///
 /// ```rust
-/// #![feature(option_as_slice)]
-///
 /// for i in [Some(1234_u16), None] {
 /// assert_eq!(i.as_ref(), i.as_slice().first());
 /// }
 /// ```
 #[inline]
 #[must_use]
-#[unstable(feature = "option_as_slice",issue = "108545")]
+#[stable(feature = "option_as_slice",since = "CURRENT_RUSTC_VERSION")]
 pubfnas_slice(&self) -> &[T]{
 // SAFETY: When the `Option` is `Some`, we're using the actual pointer
 // to the payload, with a length of 1, so this is equivalent to
@@ -794,8 +790,6 @@ impl<T> Option<T> {
 /// # Examples
 ///
 /// ```rust
-/// #![feature(option_as_slice)]
-///
 /// assert_eq!(
 /// [Some(1234).as_mut_slice(), None.as_mut_slice()],
 /// [&mut [1234][..], &mut [][..]],
@@ -806,8 +800,6 @@ impl<T> Option<T> {
 /// our original `Option`:
 ///
 /// ```rust
-/// #![feature(option_as_slice)]
-///
 /// let mut x = Some(1234);
 /// x.as_mut_slice()[0] += 1;
 /// assert_eq!(x, Some(1235));
@@ -817,13 +809,11 @@ impl<T> Option<T> {
 /// is [`[_]::first_mut`](slice::first_mut):
 ///
 /// ```rust
-/// #![feature(option_as_slice)]
-///
 /// assert_eq!(Some(123).as_mut_slice().first_mut(), Some(&mut 123))
 /// ```
 #[inline]
 #[must_use]
-#[unstable(feature = "option_as_slice",issue = "108545")]
+#[stable(feature = "option_as_slice",since = "CURRENT_RUSTC_VERSION")]
 pubfnas_mut_slice(&mutself) -> &mut[T]{
 // SAFETY: When the `Option` is `Some`, we're using the actual pointer
 // to the payload, with a length of 1, so this is equivalent to