From b1a6c8bdd3a76207eff76b004945bc2a13755eca Mon Sep 17 00:00:00 2001
From: Corey Farwell <coreyf@rwell.org>
Date: Thu, 22 Feb 2018 19:53:44 -0500
Subject: [PATCH] Stabilize [T]::rotate_{left,right}

https://github.com/rust-lang/rust/issues/41891
---
 src/liballoc/benches/lib.rs |  1 -
 src/liballoc/lib.rs         |  1 -
 src/liballoc/slice.rs       | 20 +++-----------------
 src/liballoc/tests/lib.rs   |  1 -
 src/libcore/slice/mod.rs    |  4 ++--
 src/libcore/tests/lib.rs    |  1 -
 6 files changed, 5 insertions(+), 23 deletions(-)

diff --git a/src/liballoc/benches/lib.rs b/src/liballoc/benches/lib.rs
index 174628ccd0788..2de0ffb4b2611 100644
--- a/src/liballoc/benches/lib.rs
+++ b/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;
diff --git a/src/liballoc/lib.rs b/src/liballoc/lib.rs
index 5139e54b5604a..d250cfe1880fc 100644
--- a/src/liballoc/lib.rs
+++ b/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)]
diff --git a/src/liballoc/slice.rs b/src/liballoc/slice.rs
index 028983de556f2..dc40062ef13df 100644
--- a/src/liballoc/slice.rs
+++ b/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);
     }
diff --git a/src/liballoc/tests/lib.rs b/src/liballoc/tests/lib.rs
index 427a7adcbded1..168dbb2ce9b1f 100644
--- a/src/liballoc/tests/lib.rs
+++ b/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)]
diff --git a/src/libcore/slice/mod.rs b/src/libcore/slice/mod.rs
index ac390313a6797..a43ed65907f83 100644
--- a/src/libcore/slice/mod.rs
+++ b/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")]
diff --git a/src/libcore/tests/lib.rs b/src/libcore/tests/lib.rs
index 3e901a9d442ce..cb8bac10d2b9a 100644
--- a/src/libcore/tests/lib.rs
+++ b/src/libcore/tests/lib.rs
@@ -35,7 +35,6 @@
 #![feature(refcell_replace_swap)]
 #![feature(sip_hash_13)]
 #![feature(slice_patterns)]
-#![feature(slice_rotate)]
 #![feature(sort_internals)]
 #![feature(specialization)]
 #![feature(step_trait)]