Rust Search
Find the best content on Rust, curated by the community; a
search engine for Rustaceans.
## Return type notation (RTN) in bounds and where-clauses - Feature Name: `return_type_notation` - Start Date: 2024-06-04 - RFC PR: [rust-lang/rfcs#3654](https://github.com/rust-lang/rfcs/pull/3654) - Tracking Issue: [rust-lang/rust#109417]...
## Summary [summary]: #summary Promote aarch64-apple-darwin to Tier 1. ## Motivation [motivation]: #motivation Approximately [33% of Rust users][survey-2023] use macOS for development. Hardware using Apple Silicon CPUs is noticeably more pe...
## Summary This RFC presents the Rust project goal slate for 2024H2. The slate consists of 26 total project goals of which we have selected 3 as our "flagship goals": * Release the Rust 2024 edition (owner: [TC][]) * Bring the Async Rust ex...
## Summary [summary]: #summary This RFC adds an `async` bound modifier to the `Fn` family of trait bounds. The combination currently desugars to a set of unstable `AsyncFn{,Mut,Once}` traits that parallel the current `Fn{,Mut,Once}` traits....
## Summary This RFC proposes a mechanism for crate authors to delete their crates from crates.io under certain conditions. ## Motivation There are a variety of reasons why a crate author might want to delete a crate from crates.io: * You pu...
## Summary This RFC discusses mergeable cross-crate information in rustdoc. It facilitates the generation of documentation indexes in workspaces with many crates by allowing each crate to write to an independent output directory. The final...
## `unsafe_pinned` - Feature Name: `unsafe_pinned` - Start Date: 2022-11-05 - RFC PR: [rust-lang/rfcs#3467](https://github.com/rust-lang/rfcs/pull/3467) - Tracking Issue: [rust-lang/rust#125735](https://github.com/rust-lang/rust/issues/1257...
## Summary [summary]: #summary The [crates.io package ownership policies currently state](https://crates.io/policies#package-ownership): > If you want to take over a package, we require you to first try and contact the current owner > direc...
## Summary Add `std::thread::add_spawn_hook` to register a hook that runs for newly spawned threads. This will effectively provide us with "inheriting thread locals", a much requested feature. ```rust thread_local! { static MY_THREAD_LOCAL:...
## Summary [summary]: #summary Adding an unsafe attribute, `#[unsafe(export_ordinal(n))]`, that marks the ordinal position of an exported function in a cdylib on windows targets without creating a `lib.def` file. ## Motivation [motivation]:...
## Summary [summary]: #summary This RFC proposes to add a new kind of pattern, the **guard pattern.** Like match arm guards, guard patterns restrict another pattern to match only if an expression evaluates to `true`. The syntax for guard pa...
## `maybe_dangling` - Feature Name: `maybe_dangling` - Start Date: 2022-09-30 - RFC PR: [rust-lang/rfcs#3336](https://github.com/rust-lang/rfcs/pull/3336) - Tracking Issue: [rust-lang/rust#118166](https://github.com/rust-lang/rust/issues/11...
## Summary [summary]: #summary Various changes to the match ergonomics rules: - On edition ≥ 2024, `&` and `&mut` patterns only remove a single layer of references. - On edition ≥ 2024, `mut` on an identifier pattern does not force its bind...
## Summary [summary]: #summary When method selection encounters an ambiguity between two trait methods when both traits are in scope, if one trait is a subtrait of the other then select the method from the subtrait instead of reporting an a...
## Summary [summary]: #summary Make it possible to define custom smart pointers that work with trait objects. For now, it will only be possible to do this using a derive macro, as we do not stabilize the underlying traits. This RFC builds o...
## Summary [summary]: #summary This RFC proposes to run an experimental goal program during the second half of 2024 with nikomatsakis as owner/organizer. This program is a first step towards an ongoing Rust roadmap. The proposed outcomes fo...
## Summary [summary]: #summary This RFC adds `use<..>` syntax for specifying which generic parameters should be captured in an opaque RPIT-like `impl Trait` type, e.g. `impl use<'t, T> Trait`. This solves the problem of overcapturing and wi...
## Shorter temporary lifetimes in tail expressions - Feature Name: `shorter_tail_lifetimes` - Start Date: 2023-05-04 - RFC PR: [rust-lang/rfcs#3606](https://github.com/rust-lang/rfcs/pull/3606) - Tracking Issue: [rust-lang/rust#123739](http...
## Summary This RFC proposes merging the Crates.io team into the Dev tools team as a subteam. The membership of the Crates.io and Dev tools teams proper remain the same.[^subteam] [^subteam]: Note: Members of subteams are not automatically...
## Summary [summary]: #summary Beginning with the 2024 edition, reserve the syntax `#"foo"#`, as a way of future-proofing against future language changes. ## Motivation [motivation]: #motivation [RFC 3101](https://github.com/rust-lang/rfcs/...
"I’ve said it before and I’ll say it again: as a child of OCaml and C++, Rust currently is the best language for production compiler-shaped things."