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| author | dianne <diannes.gm@gmail.com> | 2024-09-16 18:51:30 -0700 |
|---|---|---|
| committer | nora <48135649+Noratrieb@users.noreply.github.com> | 2024-09-24 19:57:58 +0200 |
| commit | 940340d2e6477aabc2db61d990f2e0b96313613a (patch) | |
| tree | d29843f1b5f7d6d3cc87f7217fdecf42b0a6f022 /src/doc/rustc-dev-guide | |
| parent | 847b89625f5a0ad2c186b2c1cc54dc71d4617d97 (diff) | |
| download | rust-940340d2e6477aabc2db61d990f2e0b96313613a.tar.gz rust-940340d2e6477aabc2db61d990f2e0b96313613a.zip | |
mention rustc's stable-through-unstable bug being fixed
Diffstat (limited to 'src/doc/rustc-dev-guide')
| -rw-r--r-- | src/doc/rustc-dev-guide/src/stability.md | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/doc/rustc-dev-guide/src/stability.md b/src/doc/rustc-dev-guide/src/stability.md index 444bef7af72..22df006101b 100644 --- a/src/doc/rustc-dev-guide/src/stability.md +++ b/src/doc/rustc-dev-guide/src/stability.md @@ -30,10 +30,11 @@ them. The stability scheme works similarly to how `pub` works. You can have public functions of nonpublic modules and you can have stable functions in unstable modules or vice versa. -Note, however, that due to a [rustc bug], stable items inside unstable modules -*are* available to stable code in that location! So, for example, stable code -can import `core::intrinsics::transmute` even though `intrinsics` is an -unstable module. Thus, this kind of nesting should be avoided when possible. +Previously, due to a [rustc bug], stable items inside unstable modules were +available to stable code in that location. +As of <!-- date-check --> September 2024, items with [accidentally stabilized +paths] are marked with the `#[rustc_allowed_through_unstable_modules]` attribute +to prevent code dependent on those paths from breaking. The `unstable` attribute may also have the `soft` value, which makes it a future-incompatible deny-by-default lint instead of a hard error. This is used @@ -42,6 +43,7 @@ prevents breaking dependencies by leveraging Cargo's lint capping. [issue number]: https://github.com/rust-lang/rust/issues [rustc bug]: https://github.com/rust-lang/rust/issues/15702 +[accidentally stabilized paths]: https://github.com/rust-lang/rust/issues/113387 ## stable The `#[stable(feature = "foo", since = "1.420.69")]` attribute explicitly |