doomemacs/modules/lang/rust
Henrik Lissner ad6a3d0f33
refactor: deprecate featurep! for modulep!
featurep! will be renamed modulep! in the future, so it's been
deprecated. They have identical interfaces, and can be replaced without
issue.

featurep! was never quite the right name for this macro. It implied that
it had some connection to featurep, which it doesn't (only that it was
similar in purpose; still, Doom modules are not features). To undo such
implications and be consistent with its namespace (and since we're
heading into a storm of breaking changes with the v3 release anyway),
now was the best opportunity to begin the transition.
2022-08-14 20:43:35 +02:00
..
autoload.el Bump :lang rust 2021-05-03 00:17:16 -04:00
config.el refactor: deprecate featurep! for modulep! 2022-08-14 20:43:35 +02:00
doctor.el refactor: deprecate featurep! for modulep! 2022-08-14 20:43:35 +02:00
packages.el refactor: deprecate featurep! for modulep! 2022-08-14 20:43:35 +02:00
README.org revert: fix(docs): set mode in file-local vars 2022-08-07 19:08:07 +02:00

:lang rust

Description   unfold

This module adds support for the Rust language and integration for its tools, e.g. cargo.

  • Code completion (racer or an LSP server)
  • Syntax checking (flycheck)
  • LSP support (for rust-analyzer and rls) (rustic)
  • Snippets

Maintainers

Module flags

+lsp
Enable LSP support for rustic-mode. Requires :tools lsp and a langserver (supports rust-analyzer and rls).

Packages

Hacks

  • rustic has been modified not to automatically install lsp-mode or eglot if they're missing. Doom expects you to have enabled the :tools lsp module yourself.

TODO Changelog

This module does not have a changelog yet.

Installation

Enable this module in your doom! block.

This module requires rust, which can be acquired through rustup:

curl https://sh.rustup.rs -sSf | sh

Note that when the Rust language has updates, you are to run rustup such that it doesn't upgrade itself:

rustup update --no-self-update

Other Requirements

  • If :editor format is enabled, you'll need rustfmt: $ rustup component add rustfmt-preview.
  • Users without +lsp enabled will need racer: $ cargo +nightly install racer (with requires rust nightly edition).
  • Users with +lsp enabled will need:

    • rust-analyzer or rls
  • Using the following commands requires:

    • cargo-process-check: $ cargo install cargo-check
    • cargo-process-clippy: $ rustup component add clippy-preview

TODO Usage

🔨 This module's usage documentation is incomplete. Complete it?

LSP support (rls or rust-analyzer)

This module supports LSP integration. For it to work you'll need:

  1. Either rust-analyzer or the Rust Language Server installed (e.g. through your OS package manager).
  2. The :tools lsp module enabled.
  3. The +lsp flag on this module enabled.

Format on save

Enable :editor format +onsave to get formatting on save with rustfmt. No additional configuration is necessary.

Keybinds

Binding Description
<localleader> b a cargo audit
<localleader> b b cargo build
<localleader> b B cargo bench
<localleader> b c cargo check
<localleader> b C cargo clippy
<localleader> b d cargo doc
<localleader> b n cargo update
<localleader> b o cargo outdated
<localleader> b r cargo run
<localleader> t a cargo test
<localleader> t t run current test

TODO Configuration

🔨 This module's configuration documentation is incomplete. Complete it?

Enable RLS by default

If both rls and rust-analyzer are present on your system, rust-analyzer is used by default. Modify rustic-lsp-server to change the default:

;; in $DOOMDIR/config.el
(after! rustic
  (setq rustic-lsp-server 'rls))

Enabling eglot support for Rust

Doom's :tools lsp module has an +eglot flag. Enable it and this module will use eglot instead.

Troubleshooting

Report an issue?

error[E0670]: `async fn` is not permitted in the 2015 edition

You may be seeing this error, despite having edition = "2018" in your Cargo.toml. This error actually originates from rustfmt, which the LSP server tries to invoke on save (if you have rustic-format-trigger or :editor format enabled).

To fix this your project needs a rustfmt.toml with edition = "2018" in it.

Frequently asked questions

This module has no FAQs yet. Ask one?

TODO Appendix

🔨 This module has no appendix yet. Write one?