bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

std: Stabilize the thread_local_const_init feature

Browse source 
This commit is intended to follow the stabilization disposition of the
FCP that has now finished in #84223. This stabilizes the ability to flag
thread local initializers as `const` expressions which enables the macro
to generate more efficient code for accessing it, notably removing
runtime checks for initialization.

More information can also be found in #84223 as well as the tests where
the feature usage was removed in this PR.

Closes #84223
This commit is contained in:
Alex Crichton 2021-11-29 07:21:35 -08:00
parent 8b954910c5
commit a0c959750a
10 changed files with 1 additions and 34 deletions
Download patch file Download diff file Expand all files Collapse all files

7
library/std/src/thread/mod.rs
View file

@ -204,13 +204,6 @@ pub use self::local::os::Key as __OsLocalKeyInner;
#[doc(hidden)]
pub use self::local::statik::Key as __StaticLocalKeyInner;
// This is only used to make thread locals with `const { .. }` initialization
// expressions unstable. If and/or when that syntax is stabilized with thread
// locals this will simply be removed.
#[doc(hidden)]
#[unstable(feature = "thread_local_const_init", issue = "84223")]
pub const fn require_unstable_const_init_thread_local() {}
////////////////////////////////////////////////////////////////////////////////
// Builder
////////////////////////////////////////////////////////////////////////////////