Rollup merge of #93886 - clarfonthey:stable_ascii_escape, r=Mark-Simulacrum

Stabilise inherent_ascii_escape (FCP in #77174)

Implements #77174, which completed its FCP.

This does *not* deprecate any existing methods or structs, as that is tracked in #93887. That stated, people should prefer using `u8::escape_ascii` to `std::ascii::escape_default`.

library/alloc/src/lib.rs

@@ -112,7 +112,6 @@
 #![feature(extend_one)]
 #![feature(fmt_internals)]
 #![feature(fn_traits)]
-#![feature(inherent_ascii_escape)]
 #![feature(inplace_iteration)]
 #![feature(iter_advance_by)]
 #![feature(layout_for_ptr)]

library/alloc/src/slice.rs

@@ -108,7 +108,7 @@ pub use core::slice::ArrayChunks;
 pub use core::slice::ArrayChunksMut;
 #[unstable(feature = "array_windows", issue = "75027")]
 pub use core::slice::ArrayWindows;
-#[unstable(feature = "inherent_ascii_escape", issue = "77174")]
+#[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
 pub use core::slice::EscapeAscii;
 #[stable(feature = "slice_get_slice", since = "1.28.0")]
 pub use core::slice::SliceIndex;

library/core/src/num/mod.rs

@@ -791,7 +791,6 @@ impl u8 {
     /// # Examples
     ///
     /// ```
-    /// #![feature(inherent_ascii_escape)]
     ///
     /// assert_eq!("0", b'0'.escape_ascii().to_string());
     /// assert_eq!("\\t", b'\t'.escape_ascii().to_string());
@@ -804,10 +803,10 @@ impl u8 {
     /// ```
     #[must_use = "this returns the escaped byte as an iterator, \
                   without modifying the original"]
-    #[unstable(feature = "inherent_ascii_escape", issue = "77174")]
+    #[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
     #[inline]
-    pub fn escape_ascii(&self) -> ascii::EscapeDefault {
-        ascii::escape_default(*self)
+    pub fn escape_ascii(self) -> ascii::EscapeDefault {
+        ascii::escape_default(self)
     }
 
     pub(crate) fn is_utf8_char_boundary(self) -> bool {

library/core/src/slice/ascii.rs

@@ -68,7 +68,6 @@ impl [u8] {
     /// # Examples
     ///
     /// ```
-    /// #![feature(inherent_ascii_escape)]
     ///
     /// let s = b"0\t\r\n'\"\\\x9d";
     /// let escaped = s.escape_ascii().to_string();
@@ -76,7 +75,7 @@ impl [u8] {
     /// ```
     #[must_use = "this returns the escaped bytes as an iterator, \
                   without modifying the original"]
-    #[unstable(feature = "inherent_ascii_escape", issue = "77174")]
+    #[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
     pub fn escape_ascii(&self) -> EscapeAscii<'_> {
         EscapeAscii { inner: self.iter().flat_map(EscapeByte) }
     }
@@ -93,13 +92,13 @@ impl_fn_for_zst! {
 ///
 /// This `struct` is created by the [`slice::escape_ascii`] method. See its
 /// documentation for more information.
-#[unstable(feature = "inherent_ascii_escape", issue = "77174")]
+#[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
 #[derive(Clone)]
 pub struct EscapeAscii<'a> {
     inner: iter::FlatMap<super::Iter<'a, u8>, ascii::EscapeDefault, EscapeByte>,
 }
 
-#[unstable(feature = "inherent_ascii_escape", issue = "77174")]
+#[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
 impl<'a> iter::Iterator for EscapeAscii<'a> {
     type Item = u8;
     #[inline]
@@ -131,23 +130,23 @@ impl<'a> iter::Iterator for EscapeAscii<'a> {
     }
 }
 
-#[unstable(feature = "inherent_ascii_escape", issue = "77174")]
+#[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
 impl<'a> iter::DoubleEndedIterator for EscapeAscii<'a> {
     fn next_back(&mut self) -> Option<u8> {
         self.inner.next_back()
     }
 }
-#[unstable(feature = "inherent_ascii_escape", issue = "77174")]
+#[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
 impl<'a> iter::ExactSizeIterator for EscapeAscii<'a> {}
-#[unstable(feature = "inherent_ascii_escape", issue = "77174")]
+#[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
 impl<'a> iter::FusedIterator for EscapeAscii<'a> {}
-#[unstable(feature = "inherent_ascii_escape", issue = "77174")]
+#[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
 impl<'a> fmt::Display for EscapeAscii<'a> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         self.clone().try_for_each(|b| f.write_char(b as char))
     }
 }
-#[unstable(feature = "inherent_ascii_escape", issue = "77174")]
+#[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
 impl<'a> fmt::Debug for EscapeAscii<'a> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("EscapeAscii").finish_non_exhaustive()

library/core/src/slice/mod.rs

@@ -81,7 +81,7 @@ pub use index::SliceIndex;
 #[unstable(feature = "slice_range", issue = "76393")]
 pub use index::range;
 
-#[unstable(feature = "inherent_ascii_escape", issue = "77174")]
+#[stable(feature = "inherent_ascii_escape", since = "1.60.0")]
 pub use ascii::EscapeAscii;
 
 /// Calculates the direction and split point of a one-sided range.