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std: Stabilize str_checked_slicing feature

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Stabilized

* `<str>::get`
* `<str>::get_mut`
* `<str>::get_unchecked`
* `<str>::get_unchecked_mut`

Closes #39932
This commit is contained in:
Alex Crichton 2017-07-20 15:42:14 -07:00
parent 64c1b23374
commit 46de2af063
4 changed files with 14 additions and 20 deletions
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12
src/liballoc/str.rs
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@ -328,14 +328,13 @@ impl str {
/// # Examples
///
/// ```
/// # #![feature(str_checked_slicing)]
/// let v = "🗻∈🌏";
/// assert_eq!(Some("🗻"), v.get(0..4));
/// assert!(v.get(1..).is_none());
/// assert!(v.get(..8).is_none());
/// assert!(v.get(..42).is_none());
/// ```
#[unstable(feature = "str_checked_slicing", issue = "39932")]
#[stable(feature = "str_checked_slicing", since = "1.20.0")]
#[inline]
pub fn get<I: SliceIndex<str>>(&self, i: I) -> Option<&I::Output> {
core_str::StrExt::get(self, i)
@ -351,14 +350,13 @@ impl str {
/// # Examples
///
/// ```
/// # #![feature(str_checked_slicing)]
/// let mut v = String::from("🗻∈🌏");
/// assert_eq!(Some("🗻"), v.get_mut(0..4).map(|v| &*v));
/// assert!(v.get_mut(1..).is_none());
/// assert!(v.get_mut(..8).is_none());
/// assert!(v.get_mut(..42).is_none());
/// ```
#[unstable(feature = "str_checked_slicing", issue = "39932")]
#[stable(feature = "str_checked_slicing", since = "1.20.0")]
#[inline]
pub fn get_mut<I: SliceIndex<str>>(&mut self, i: I) -> Option<&mut I::Output> {
core_str::StrExt::get_mut(self, i)
@ -383,7 +381,6 @@ impl str {
/// # Examples
///
/// ```
/// # #![feature(str_checked_slicing)]
/// let v = "🗻∈🌏";
/// unsafe {
/// assert_eq!("🗻", v.get_unchecked(0..4));
@ -391,7 +388,7 @@ impl str {
/// assert_eq!("🌏", v.get_unchecked(7..11));
/// }
/// ```
#[unstable(feature = "str_checked_slicing", issue = "39932")]
#[stable(feature = "str_checked_slicing", since = "1.20.0")]
#[inline]
pub unsafe fn get_unchecked<I: SliceIndex<str>>(&self, i: I) -> &I::Output {
core_str::StrExt::get_unchecked(self, i)
@ -416,7 +413,6 @@ impl str {
/// # Examples
///
/// ```
/// # #![feature(str_checked_slicing)]
/// let mut v = String::from("🗻∈🌏");
/// unsafe {
/// assert_eq!("🗻", v.get_unchecked_mut(0..4));
@ -424,7 +420,7 @@ impl str {
/// assert_eq!("🌏", v.get_unchecked_mut(7..11));
/// }
/// ```
#[unstable(feature = "str_checked_slicing", issue = "39932")]
#[stable(feature = "str_checked_slicing", since = "1.20.0")]
#[inline]
pub unsafe fn get_unchecked_mut<I: SliceIndex<str>>(&mut self, i: I) -> &mut I::Output {
core_str::StrExt::get_unchecked_mut(self, i)