bjoernager/rust
bjoernager/rust
1
Fork 0
Code Issues Pull requests Activity

Rollup merge of #129401 - workingjubilee:partial-initialization-of-stabilization, r=dtolnay,joboet

Browse source 
Partially stabilize `feature(new_uninit)`

Finished comment period: https://github.com/rust-lang/rust/issues/63291#issuecomment-2183022955

The following API has been stabilized from https://github.com/rust-lang/rust/issues/63291

```rust
impl<T> Box<T> { pub fn new_uninit() -> Box<MaybeUninit<T>> {…} }
impl<T> Rc<T> { pub fn new_uninit() -> Rc<MaybeUninit<T>> {…} }
impl<T> Arc<T> { pub fn new_uninit() -> Arc<MaybeUninit<T>> {…} }

impl<T> Box<[T]> { pub fn new_uninit_slice(len: usize) -> Box<[MaybeUninit<T>]> {…} }
impl<T> Rc<[T]> { pub fn new_uninit_slice(len: usize) -> Rc<[MaybeUninit<T>]> {…} }
impl<T> Arc<[T]> { pub fn new_uninit_slice(len: usize) -> Arc<[MaybeUninit<T>]> {…} }

impl<T> Box<MaybeUninit<T>> { pub unsafe fn assume_init(self) -> Box<T> {…} }
impl<T> Box<[MaybeUninit<T>]> { pub unsafe fn assume_init(self) -> Box<[T]> {…} }
impl<T> Rc<MaybeUninit<T>> { pub unsafe fn assume_init(self) -> Rc<T> {…} }
impl<T> Rc<[MaybeUninit<T>]> { pub unsafe fn assume_init(self) -> Rc<[T]> {…} }
impl<T> Arc<MaybeUninit<T>> { pub unsafe fn assume_init(self) -> Arc<T> {…} }
impl<T> Arc<[MaybeUninit<T>]> { pub unsafe fn assume_init(self) -> Arc<[T]> {…} }
```

The remaining API is split between new issues
- `new_zeroed_alloc`: https://github.com/rust-lang/rust/issues/129396
- `box_uninit_write`: https://github.com/rust-lang/rust/issues/129397

All relevant code is thus either stabilized or split out of that issue, so this closes #63291 as, with the FCP concluded, that issue has served its purpose.

try-job: x86_64-rust-for-linux
This commit is contained in:
Jubilee 2024-08-28 19:12:52 -07:00 • committed by GitHub
commit 9d5f794312
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
16 changed files with 33 additions and 76 deletions
Download patch file Download diff file Expand all files Collapse all files

2
compiler/rustc_index/src/lib.rs
View file

@ -1,7 +1,7 @@
// tidy-alphabetical-start
#![cfg_attr(all(feature = "nightly", test), feature(stmt_expr_attributes))]
#![cfg_attr(feature = "nightly", allow(internal_features))]
#![cfg_attr(feature = "nightly", feature(extend_one, new_uninit, step_trait, test))]
#![cfg_attr(feature = "nightly", feature(extend_one, step_trait, test))]
#![cfg_attr(feature = "nightly", feature(new_zeroed_alloc))]
#![warn(unreachable_pub)]
// tidy-alphabetical-end