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Rollup merge of #130403 - eduardosm:stabilize-const_slice_from_raw_parts_mut, r=workingjubilee

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Stabilize `const_slice_from_raw_parts_mut`

Stabilizes https://github.com/rust-lang/rust/issues/67456, since https://github.com/rust-lang/rust/issues/57349 has been stabilized.

Stabilized const API:
```rust
// core::ptr
pub const fn slice_from_raw_parts_mut<T>(data: *mut T, len: usize) -> *mut [T];

// core::slice
pub const unsafe fn from_raw_parts_mut<'a, T>(data: *mut T, len: usize) -> &'a mut [T];

// core::ptr::NonNull
pub const fn slice_from_raw_parts(data: NonNull<T>, len: usize) -> Self
```

Closes https://github.com/rust-lang/rust/issues/67456.

r? libs-api
This commit is contained in:
Jubilee 2024-10-04 19:19:23 -07:00 committed by GitHub
commit 49c6d78117
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5 changed files with 7 additions and 5 deletions
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1
library/alloc/tests/lib.rs
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@ -7,7 +7,6 @@
#![feature(const_cow_is_borrowed)]
#![feature(const_heap)]
#![cfg_attr(bootstrap, feature(const_mut_refs))]
#![feature(const_slice_from_raw_parts_mut)]
#![feature(const_ptr_write)]
#![feature(const_try)]
#![feature(core_intrinsics)]

1
library/core/src/lib.rs
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@ -145,7 +145,6 @@
#![feature(const_replace)]
#![feature(const_size_of_val)]
#![feature(const_size_of_val_raw)]
#![feature(const_slice_from_raw_parts_mut)]
#![feature(const_slice_from_ref)]
#![feature(const_slice_split_at_mut)]
#![feature(const_strict_overflow_ops)]

2
library/core/src/ptr/mod.rs
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@ -992,7 +992,7 @@ pub const fn slice_from_raw_parts<T>(data: *const T, len: usize) -> *const [T] {
/// ```
#[inline]
#[stable(feature = "slice_from_raw_parts", since = "1.42.0")]
#[rustc_const_unstable(feature = "const_slice_from_raw_parts_mut", issue = "67456")]
#[rustc_const_stable(feature = "const_slice_from_raw_parts_mut", since = "CURRENT_RUSTC_VERSION")]
#[rustc_diagnostic_item = "ptr_slice_from_raw_parts_mut"]
pub const fn slice_from_raw_parts_mut<T>(data: *mut T, len: usize) -> *mut [T] {
from_raw_parts_mut(data, len)

5
library/core/src/ptr/non_null.rs
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@ -1434,7 +1434,10 @@ impl<T> NonNull<[T]> {
/// (Note that this example artificially demonstrates a use of this method,
/// but `let slice = NonNull::from(&x[..]);` would be a better way to write code like this.)
#[stable(feature = "nonnull_slice_from_raw_parts", since = "1.70.0")]
#[rustc_const_unstable(feature = "const_slice_from_raw_parts_mut", issue = "67456")]
#[rustc_const_stable(
feature = "const_slice_from_raw_parts_mut",
since = "CURRENT_RUSTC_VERSION"
)]
#[must_use]
#[inline]
pub const fn slice_from_raw_parts(data: NonNull<T>, len: usize) -> Self {

3
library/core/src/slice/raw.rs
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@ -171,7 +171,8 @@
/// [`NonNull::dangling()`]: ptr::NonNull::dangling
#[inline]
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_slice_from_raw_parts_mut", issue = "67456")]
#[rustc_const_stable(feature = "const_slice_from_raw_parts_mut", since = "CURRENT_RUSTC_VERSION")]
#[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))]
#[must_use]
#[rustc_diagnostic_item = "slice_from_raw_parts_mut"]
pub const unsafe fn from_raw_parts_mut<'a, T>(data: *mut T, len: usize) -> &'a mut [T] {