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Support #[patchable_function_entries]

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See [RFC](https://github.com/maurer/rust-rfcs/blob/patchable-function-entry/text/0000-patchable-function-entry.md) (yet to be numbered)

TODO before submission:
* Needs an RFC
* Improve error reporting for malformed attributes
This commit is contained in:
Matthew Maurer
2023-12-12 13:37:04 -08:00
committed by Florian Schmiderer
parent ac7595fdb1
commit 9b0ae75ecc
9 changed files with 83 additions and 4 deletions
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3
compiler/rustc_feature/src/unstable.rs
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@@ -565,6 +565,9 @@ declare_features! (
(unstable, offset_of_slice, "CURRENT_RUSTC_VERSION", Some(126151)),
/// Allows using `#[optimize(X)]`.
(unstable, optimize_attribute, "1.34.0", Some(54882)),
/// Allows specifying nop padding on functions for dynamic patching.
// FIXME this needs an RFC #
(unstable, patchable_function_entry, "CURRENT_RUSTC_VERSION", Some(9999)),
/// Allows postfix match `expr.match { ... }`
(unstable, postfix_match, "1.79.0", Some(121618)),
/// Allows `use<'a, 'b, A, B>` in `impl Trait + use<...>` for precise capture of generic args.