Rollup merge of #48450 - frewsxcv:frewsxcxv-stabilize-slice-rotatee, r=alexcrichton

Stabilize [T]::rotate_{left,right}

https://github.com/rust-lang/rust/issues/41891

src/liballoc/benches/lib.rs

@@ -13,7 +13,6 @@
 #![feature(i128_type)]
 #![feature(rand)]
 #![feature(repr_simd)]
-#![feature(slice_rotate)]
 #![feature(test)]
 
 extern crate rand;

src/liballoc/lib.rs

@@ -79,7 +79,6 @@
 #![cfg_attr(test, feature(placement_in))]
 #![cfg_attr(not(test), feature(core_float))]
 #![cfg_attr(not(test), feature(exact_size_is_empty))]
-#![cfg_attr(not(test), feature(slice_rotate))]
 #![cfg_attr(not(test), feature(generator_trait))]
 #![cfg_attr(test, feature(rand, test))]
 #![feature(allow_internal_unstable)]

src/liballoc/slice.rs

@@ -1460,8 +1460,6 @@ impl<T> [T] {
     /// # Examples
     ///
     /// ```
-    /// #![feature(slice_rotate)]
-    ///
     /// let mut a = ['a', 'b', 'c', 'd', 'e', 'f'];
     /// a.rotate_left(2);
     /// assert_eq!(a, ['c', 'd', 'e', 'f', 'a', 'b']);
@@ -1470,23 +1468,15 @@ impl<T> [T] {
     /// Rotating a subslice:
     ///
     /// ```
-    /// #![feature(slice_rotate)]
-    ///
     /// let mut a = ['a', 'b', 'c', 'd', 'e', 'f'];
     /// a[1..5].rotate_left(1);
     /// assert_eq!(a, ['a', 'c', 'd', 'e', 'b', 'f']);
    /// ```
-    #[unstable(feature = "slice_rotate", issue = "41891")]
+    #[stable(feature = "slice_rotate", since = "1.26.0")]
     pub fn rotate_left(&mut self, mid: usize) {
         core_slice::SliceExt::rotate_left(self, mid);
     }
 
-    #[unstable(feature = "slice_rotate", issue = "41891")]
-    #[rustc_deprecated(since = "", reason = "renamed to `rotate_left`")]
-    pub fn rotate(&mut self, mid: usize) {
-        core_slice::SliceExt::rotate_left(self, mid);
-    }
-
     /// Rotates the slice in-place such that the first `self.len() - k`
     /// elements of the slice move to the end while the last `k` elements move
     /// to the front. After calling `rotate_right`, the element previously at
@@ -1505,8 +1495,6 @@ impl<T> [T] {
     /// # Examples
     ///
     /// ```
-    /// #![feature(slice_rotate)]
-    ///
     /// let mut a = ['a', 'b', 'c', 'd', 'e', 'f'];
     /// a.rotate_right(2);
     /// assert_eq!(a, ['e', 'f', 'a', 'b', 'c', 'd']);
@@ -1515,13 +1503,11 @@ impl<T> [T] {
     /// Rotate a subslice:
     ///
     /// ```
-    /// #![feature(slice_rotate)]
-    ///
     /// let mut a = ['a', 'b', 'c', 'd', 'e', 'f'];
     /// a[1..5].rotate_right(1);
     /// assert_eq!(a, ['a', 'e', 'b', 'c', 'd', 'f']);
     /// ```
-    #[unstable(feature = "slice_rotate", issue = "41891")]
+    #[stable(feature = "slice_rotate", since = "1.26.0")]
     pub fn rotate_right(&mut self, k: usize) {
         core_slice::SliceExt::rotate_right(self, k);
     }

src/liballoc/tests/lib.rs

@@ -23,7 +23,6 @@
 #![feature(pattern)]
 #![feature(placement_in_syntax)]
 #![feature(rand)]
-#![feature(slice_rotate)]
 #![feature(splice)]
 #![feature(str_escape)]
 #![feature(string_retain)]

src/libcore/slice/mod.rs

@@ -211,10 +211,10 @@ pub trait SliceExt {
     #[stable(feature = "core", since = "1.6.0")]
     fn ends_with(&self, needle: &[Self::Item]) -> bool where Self::Item: PartialEq;
 
-    #[unstable(feature = "slice_rotate", issue = "41891")]
+    #[stable(feature = "slice_rotate", since = "1.26.0")]
     fn rotate_left(&mut self, mid: usize);
 
-    #[unstable(feature = "slice_rotate", issue = "41891")]
+    #[stable(feature = "slice_rotate", since = "1.26.0")]
     fn rotate_right(&mut self, k: usize);
 
     #[stable(feature = "clone_from_slice", since = "1.7.0")]

src/libcore/tests/lib.rs

@@ -37,7 +37,6 @@
 #![feature(refcell_replace_swap)]
 #![feature(sip_hash_13)]
 #![feature(slice_patterns)]
-#![feature(slice_rotate)]
 #![feature(sort_internals)]
 #![feature(specialization)]
 #![feature(step_trait)]