c7420ddaaa
1845: Closure types r=flodiebold a=flodiebold This adds types for closures and makes them implement the `Fn` traits (we don't currently care or try to infer `Fn` vs. `FnMut` vs. `FnOnce`; this would require move analysis, I think). This requires some changes in Chalk; one is that we need to know the self type when asked for impls, so we can synthesize `Fn` trait impls for closures; but also there's a problem that prevents us from normalizing the closure output type correctly that I _think_ will be fixed on the Chalk side (basically, we ask too early and try to solve `Normalize(<?1 as FnOnce<(u32,)>>::Output => ?0)` -- note the variable in the self type -- and instead of an ambiguous answer, we get back that it can't be solved, so we don't try again. Niko mentioned he's making all goals where the self type is unconstrained flounder, which I think would mean this would be ambiguous). Co-authored-by: Florian Diebold <flodiebold@gmail.com> |
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Rust Analyzer
Rust Analyzer is an experimental modular compiler frontend for the Rust language. It is a part of a larger rls-2.0 effort to create excellent IDE support for Rust. If you want to get involved, check the rls-2.0 working group in the compiler-team repository:
https://github.com/rust-lang/compiler-team/tree/master/content/working-groups/rls-2.0
Work on the Rust Analyzer is sponsored by
Language Server Quick Start
Rust Analyzer is a work-in-progress, so you'll have to build it from source, and you might encounter critical bugs. That said, it is complete enough to provide a useful IDE experience and some people use it as a daily driver.
To build rust-analyzer, you need:
- latest stable rust for language server itself
- latest stable npm and VS Code for VS Code extension
To quickly install rust-analyzer with VS Code extension with standard setup
(code and cargo in $PATH, etc), use this:
# clone the repo
$ git clone https://github.com/rust-analyzer/rust-analyzer && cd rust-analyzer
# install both the language server and VS Code extension
$ cargo install-ra
# alternatively, install only the server. Binary name is `ra_lsp_server`.
$ cargo install-ra --server
For non-standard setup of VS Code and other editors, see ./docs/user.
Documentation
If you want to contribute to rust-analyzer or just curious about how things work under the hood, check the ./docs/dev folder.
If you want to use rust-analyzer's language server with your editor of choice, check ./docs/user folder. It also contains some tips & tricks to help you be more productive when using rust-analyzer.
Getting in touch
We are on the rust-lang Zulip!
https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Frls-2.2E0
Quick Links
- Work List: https://paper.dropbox.com/doc/RLS-2.0-work-list--AZ3BgHKKCtqszbsi3gi6sjchAQ-42vbnxzuKq2lKwW0mkn8Y
- API docs: https://rust-analyzer.github.io/rust-analyzer/api-docs/ra_ide_api/
- CI: https://travis-ci.org/rust-analyzer/rust-analyzer
License
Rust analyzer is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0).
See LICENSE-APACHE and LICENSE-MIT for details.