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| author | bors <bors@rust-lang.org> | 2025-08-12 12:37:26 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2025-08-12 12:37:26 +0000 |
| commit | d9dba3a55476ae2da5d4e5bce8a81b341c675750 (patch) | |
| tree | 56fcfbf6c3dda250b2b2b8edb14cdac179edc413 /src/doc/rustc-dev-guide | |
| parent | a1531335fe2807715fff569904d99602022643a7 (diff) | |
| parent | 7c4bedc962ac1800877899dd5bae9ca472e57a87 (diff) | |
| download | rust-d9dba3a55476ae2da5d4e5bce8a81b341c675750.tar.gz rust-d9dba3a55476ae2da5d4e5bce8a81b341c675750.zip | |
Auto merge of #145300 - Zalathar:rollup-0eqbt6a, r=Zalathar
Rollup of 17 pull requests Successful merges: - rust-lang/rust#131477 (Apple: Always pass SDK root when linking with `cc`, and pass it via `SDKROOT` env var) - rust-lang/rust#139806 (std: sys: pal: uefi: Overhaul Time) - rust-lang/rust#144386 (Extract TraitImplHeader in AST/HIR) - rust-lang/rust#144921 (Don't emit `rustdoc::broken_intra_doc_links` for GitHub-flavored Markdown admonitions like `[!NOTE]`) - rust-lang/rust#145155 (Port `#[allow_internal_unsafe]` to the new attribute system (attempt 2)) - rust-lang/rust#145214 (fix: re-enable self-assignment) - rust-lang/rust#145216 (rustdoc: correct negative-to-implicit discriminant display) - rust-lang/rust#145238 (Tweak invalid builtin attribute output) - rust-lang/rust#145249 (Rename entered trace span variables from `_span` to `_trace`) - rust-lang/rust#145251 (Support using #[unstable_feature_bound] on trait) - rust-lang/rust#145253 (Document compiler and stdlib in stage1 in `pr-check-2` CI job) - rust-lang/rust#145260 (Make explicit guarantees about `Vec`’s allocator) - rust-lang/rust#145263 (Update books) - rust-lang/rust#145273 (Account for new `assert!` desugaring in `!condition` suggestion) - rust-lang/rust#145283 (Make I-miscompile imply I-prioritize) - rust-lang/rust#145291 (bootstrap: Only warn about `rust.debug-assertions` if downloading rustc) - rust-lang/rust#145292 (Fix a typo in range docs) r? `@ghost` `@rustbot` modify labels: rollup
Diffstat (limited to 'src/doc/rustc-dev-guide')
| -rw-r--r-- | src/doc/rustc-dev-guide/src/stability.md | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/doc/rustc-dev-guide/src/stability.md b/src/doc/rustc-dev-guide/src/stability.md index c26d34273d7..3c4c65fdd5a 100644 --- a/src/doc/rustc-dev-guide/src/stability.md +++ b/src/doc/rustc-dev-guide/src/stability.md @@ -182,6 +182,11 @@ of the standard library raises it to a warning with `#![warn(deprecated_in_future)]`. ## unstable_feature_bound -The `#[unstable_feature_bound(foo)]` attribute can be used together with `#[unstable]` attribute to mark an `impl` of stable type and stable trait as unstable. In std/core, an item annotated with `#[unstable_feature_bound(foo)]` can only be used by another item that is also annotated with `#[unstable_feature_bound(foo)]`. Outside of std/core, using an item with `#[unstable_feature_bound(foo)]` requires the feature to be enabled with `#![feature(foo)]` attribute on the crate. Currently, only `impl`s and free functions can be annotated with `#[unstable_feature_bound]`. +The `#[unstable_feature_bound(foo)]` attribute can be used together with `#[unstable]` attribute to mark an `impl` of stable type and stable trait as unstable. In std/core, an item annotated with `#[unstable_feature_bound(foo)]` can only be used by another item that is also annotated with `#[unstable_feature_bound(foo)]`. Outside of std/core, using an item with `#[unstable_feature_bound(foo)]` requires the feature to be enabled with `#![feature(foo)]` attribute on the crate. + +Currently, the items that can be annotated with `#[unstable_feature_bound]` are: +- `impl` +- free function +- trait [blog]: https://www.ralfj.de/blog/2018/07/19/const.html |