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Some features of rust-analyzer requires support for custom commands on the client side. Specifically, hover & code lens need this. Stock LSP doesn't have a way for the server to know which client-side commands are available. For that reason, we historically were just sending the commands, not worrying whether the client supports then or not. That's not really great though, so in this PR we add infrastructure for the client to explicitly opt-into custom commands, via `extensions` field of the ClientCapabilities. To preserve backwards compatability, if the client doesn't set the field, we assume that it does support all custom commands. In the future, we'll start treating that case as if the client doesn't support commands. So, if you maintain a rust-analyzer client and implement `rust-analyzer/runSingle` and such, please also advertise this via a capability.
rust-analyzer is a 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.
Work on rust-analyzer is sponsored by
Quick Start
https://rust-analyzer.github.io/manual.html#installation
Documentation
If you want to contribute to rust-analyzer or are 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 the manual folder. It also contains some tips & tricks to help you be more productive when using rust-analyzer.
Security and Privacy
See the corresponding sections of the manual.
Communication
For usage and troubleshooting requests, please use "IDEs and Editors" category of the Rust forum:
https://users.rust-lang.org/c/ide/14
For questions about development and implementation, join rust-analyzer working group on Zulip:
https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Frust-analyzer
Quick Links
- Website: https://rust-analyzer.github.io/
- Metrics: https://rust-analyzer.github.io/metrics/
- API docs: https://rust-analyzer.github.io/rust-analyzer/ide/
- Changelog: https://rust-analyzer.github.io/thisweek
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.