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Stabilize 5 const_mut_refs-dependent API #131177

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merged 5 commits into from
Oct 5, 2024
+21 −14
Merged

Stabilize 5 const_mut_refs-dependent API #131177

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a022868
library: Stabilize `const_str_from_utf8_unchecked_mut`
workingjubilee Sep 27, 2024
bcc78bd
library: Stabilize `const_str_as_mut`
workingjubilee Sep 27, 2024
966405d
library: Stabilize `const_ptr_as_ref`
workingjubilee Sep 27, 2024
75db6b2
library: Stabilize `const_unsafecell_get_mut`
workingjubilee Sep 27, 2024
ac53f1f
library: Stabilize `const_slice_first_last`
workingjubilee Sep 27, 2024
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3 changes: 2 additions & 1 deletion library/core/src/cell.rs
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Expand Up @@ -2173,7 +2173,8 @@ impl<T: ?Sized> UnsafeCell<T> {
/// ```
#[inline(always)]
#[stable(feature = "unsafe_cell_get_mut", since = "1.50.0")]
#[rustc_const_unstable(feature = "const_unsafecell_get_mut", issue = "88836")]
#[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))]
#[rustc_const_stable(feature = "const_unsafecell_get_mut", since = "CURRENT_RUSTC_VERSION")]
pub const fn get_mut(&mut self) -> &mut T {
&mut self.value
}
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4 changes: 0 additions & 4 deletions library/core/src/lib.rs
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Expand Up @@ -140,7 +140,6 @@
#![feature(const_option_ext)]
#![feature(const_pin)]
#![feature(const_pointer_is_aligned)]
#![feature(const_ptr_as_ref)]
#![feature(const_ptr_is_null)]
#![feature(const_ptr_sub_ptr)]
#![feature(const_ptr_write)]
Expand All @@ -151,8 +150,6 @@
#![feature(const_slice_from_raw_parts_mut)]
#![feature(const_slice_from_ref)]
#![feature(const_slice_split_at_mut)]
#![feature(const_str_as_mut)]
#![feature(const_str_from_utf8_unchecked_mut)]
#![feature(const_strict_overflow_ops)]
#![feature(const_swap)]
#![feature(const_try)]
Expand All @@ -161,7 +158,6 @@
#![feature(const_typed_swap)]
#![feature(const_ub_checks)]
#![feature(const_unicode_case_lookup)]
#![feature(const_unsafecell_get_mut)]
#![feature(coverage_attribute)]
#![feature(do_not_recommend)]
#![feature(duration_consts_float)]
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3 changes: 2 additions & 1 deletion library/core/src/ptr/non_null.rs
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Expand Up @@ -394,7 +394,8 @@ impl<T: ?Sized> NonNull<T> {
///
/// [the module documentation]: crate::ptr#safety
#[stable(feature = "nonnull", since = "1.25.0")]
#[rustc_const_unstable(feature = "const_ptr_as_ref", issue = "91822")]
#[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))]
#[rustc_const_stable(feature = "const_ptr_as_ref", since = "CURRENT_RUSTC_VERSION")]
#[must_use]
#[inline(always)]
pub const unsafe fn as_mut<'a>(&mut self) -> &'a mut T {
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12 changes: 8 additions & 4 deletions library/core/src/slice/mod.rs
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Expand Up @@ -172,7 +172,8 @@ impl<T> [T] {
/// assert_eq!(None, y.first_mut());
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_slice_first_last", issue = "83570")]
#[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))]
#[rustc_const_stable(feature = "const_slice_first_last", since = "CURRENT_RUSTC_VERSION")]
#[inline]
#[must_use]
pub const fn first_mut(&mut self) -> Option<&mut T> {
Expand Down Expand Up @@ -214,7 +215,8 @@ impl<T> [T] {
/// assert_eq!(x, &[3, 4, 5]);
/// ```
#[stable(feature = "slice_splits", since = "1.5.0")]
#[rustc_const_unstable(feature = "const_slice_first_last", issue = "83570")]
#[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))]
#[rustc_const_stable(feature = "const_slice_first_last", since = "CURRENT_RUSTC_VERSION")]
#[inline]
#[must_use]
pub const fn split_first_mut(&mut self) -> Option<(&mut T, &mut [T])> {
Expand Down Expand Up @@ -256,7 +258,8 @@ impl<T> [T] {
/// assert_eq!(x, &[4, 5, 3]);
/// ```
#[stable(feature = "slice_splits", since = "1.5.0")]
#[rustc_const_unstable(feature = "const_slice_first_last", issue = "83570")]
#[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))]
#[rustc_const_stable(feature = "const_slice_first_last", since = "CURRENT_RUSTC_VERSION")]
#[inline]
#[must_use]
pub const fn split_last_mut(&mut self) -> Option<(&mut T, &mut [T])> {
Expand Down Expand Up @@ -298,7 +301,8 @@ impl<T> [T] {
/// assert_eq!(None, y.last_mut());
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_slice_first_last", issue = "83570")]
#[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))]
#[rustc_const_stable(feature = "const_slice_first_last", since = "CURRENT_RUSTC_VERSION")]
#[inline]
#[must_use]
pub const fn last_mut(&mut self) -> Option<&mut T> {
Expand Down
6 changes: 5 additions & 1 deletion library/core/src/str/converts.rs
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Expand Up @@ -195,7 +195,11 @@ pub const unsafe fn from_utf8_unchecked(v: &[u8]) -> &str {
#[inline]
#[must_use]
#[stable(feature = "str_mut_extras", since = "1.20.0")]
#[rustc_const_unstable(feature = "const_str_from_utf8_unchecked_mut", issue = "91005")]
#[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))]
#[rustc_const_stable(
feature = "const_str_from_utf8_unchecked_mut",
since = "CURRENT_RUSTC_VERSION"
)]
#[rustc_diagnostic_item = "str_from_utf8_unchecked_mut"]
pub const unsafe fn from_utf8_unchecked_mut(v: &mut [u8]) -> &mut str {
// SAFETY: the caller must guarantee that the bytes `v`
Expand Down
6 changes: 4 additions & 2 deletions library/core/src/str/mod.rs
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Expand Up @@ -339,7 +339,8 @@ impl str {
/// assert_eq!("🍔∈🌏", s);
/// ```
#[stable(feature = "str_mut_extras", since = "1.20.0")]
#[rustc_const_unstable(feature = "const_str_as_mut", issue = "130086")]
#[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))]
#[rustc_const_stable(feature = "const_str_as_mut", since = "CURRENT_RUSTC_VERSION")]
#[must_use]
#[inline(always)]
pub const unsafe fn as_bytes_mut(&mut self) -> &mut [u8] {
Expand Down Expand Up @@ -385,7 +386,8 @@ impl str {
/// It is your responsibility to make sure that the string slice only gets
/// modified in a way that it remains valid UTF-8.
#[stable(feature = "str_as_mut_ptr", since = "1.36.0")]
#[rustc_const_unstable(feature = "const_str_as_mut", issue = "130086")]
#[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))]
#[rustc_const_stable(feature = "const_str_as_mut", since = "CURRENT_RUSTC_VERSION")]
#[rustc_never_returns_null_ptr]
#[must_use]
#[inline(always)]
Expand Down
1 change: 0 additions & 1 deletion library/core/tests/lib.rs
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Expand Up @@ -30,7 +30,6 @@
#![feature(const_option_ext)]
#![feature(const_pin)]
#![feature(const_pointer_is_aligned)]
#![feature(const_ptr_as_ref)]
#![feature(const_ptr_write)]
#![feature(const_result)]
#![feature(const_slice_from_ref)]
Expand Down
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