Rollup merge of #130403 - eduardosm:stabilize-const_slice_from_raw_pa…

…rts_mut, r=workingjubilee Stabilize `const_slice_from_raw_parts_mut` Stabilizes #67456, since #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 #67456. r? libs-api
rust-lang · Oct 5, 2024 · 49c6d78 · 49c6d78
2 parents 9510c73 + 0dc250c
commit 49c6d78
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Showing 5 changed files with 7 additions and 5 deletions.
diff --git a/library/alloc/tests/lib.rs b/library/alloc/tests/lib.rs
@@ -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)]

diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs
@@ -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)]

diff --git a/library/core/src/ptr/mod.rs b/library/core/src/ptr/mod.rs
@@ -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)

diff --git a/library/core/src/ptr/non_null.rs b/library/core/src/ptr/non_null.rs
@@ -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 {

diff --git a/library/core/src/slice/raw.rs b/library/core/src/slice/raw.rs
@@ -171,7 +171,8 @@ pub const unsafe fn from_raw_parts<'a, T>(data: *const T, len: usize) -> &'a [T]
 /// [`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] {