2019-03-20 04:17:12 -05:00
|
|
|
The main interface to rust-analyzer is the
|
|
|
|
|
[LSP](https://microsoft.github.io/language-server-protocol/) implementation. To
|
|
|
|
|
install lsp server, use `cargo install-lsp`, which is a shorthand for `cargo
|
|
|
|
|
install --package ra_lsp_server`. The binary is named `ra_lsp_server`, you
|
|
|
|
|
should be able to use it with any LSP-compatible editor. We use custom
|
|
|
|
|
extensions to LSP, so special client-side support is required to take full
|
|
|
|
|
advantage of rust-analyzer. This repository contains support code for VS Code
|
|
|
|
|
and Emacs.
|
|
|
|
|
|
|
|
|
|
Rust Analyzer needs sources of rust standard library to work, so you might need
|
|
|
|
|
to execute
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
$ rustup component add rust-src
|
|
|
|
|
```
|
|
|
|
|
|
2019-03-20 04:21:55 -05:00
|
|
|
See [./features.md](./features.md) document for a list of features that are available.
|
2019-03-20 04:17:12 -05:00
|
|
|
|
|
|
|
|
## VS Code
|
2019-02-10 15:09:33 -06:00
|
|
|
|
2019-03-13 09:23:22 -05:00
|
|
|
Prerequisites:
|
2019-02-10 15:09:33 -06:00
|
|
|
|
|
|
|
|
In order to build the VS Code plugin, you need to have node.js and npm with
|
|
|
|
|
a minimum version of 10 installed. Please refer to
|
|
|
|
|
[node.js and npm documentation](https://nodejs.org) for installation instructions.
|
|
|
|
|
|
2019-02-12 09:28:39 -06:00
|
|
|
You will also need the most recent version of VS Code: we don't try to
|
|
|
|
|
maintain compatibility with older versions yet.
|
|
|
|
|
|
2019-02-10 15:09:33 -06:00
|
|
|
The experimental VS Code plugin can then be built and installed by executing the
|
|
|
|
|
following commands:
|
2018-09-16 07:36:09 -05:00
|
|
|
|
|
|
|
|
```
|
2019-01-12 11:02:16 -06:00
|
|
|
$ git clone https://github.com/rust-analyzer/rust-analyzer.git --depth 1
|
2018-12-27 08:56:07 -06:00
|
|
|
$ cd rust-analyzer
|
2018-09-16 07:36:09 -05:00
|
|
|
$ cargo install-code
|
|
|
|
|
```
|
|
|
|
|
|
2019-01-13 08:13:54 -06:00
|
|
|
This will run `cargo install --package ra_lsp_server` to install the server
|
2019-01-13 06:04:05 -06:00
|
|
|
binary into `~/.cargo/bin`, and then will build and install plugin from
|
|
|
|
|
`editors/code`. See
|
2019-03-20 04:17:12 -05:00
|
|
|
[this](https://github.com/rust-analyzer/rust-analyzer/blob/69ee5c9c5ef212f7911028c9ddf581559e6565c3/crates/tools/src/main.rs#L37-L56)
|
2019-01-13 06:04:05 -06:00
|
|
|
for details. The installation is expected to *just work*, if it doesn't, report
|
|
|
|
|
bugs!
|
2018-09-16 07:36:09 -05:00
|
|
|
|
|
|
|
|
It's better to remove existing Rust plugins to avoid interference.
|
|
|
|
|
|
2019-03-20 04:17:12 -05:00
|
|
|
Beyond basic LSP features, there are some extension commands which you can
|
2019-03-20 04:21:55 -05:00
|
|
|
invoke via <kbd>Ctrl+Shift+P</kbd> or bind to a shortcut. See [./features.md](./features.md)
|
2019-03-20 04:17:12 -05:00
|
|
|
for details.
|
2019-01-13 06:04:05 -06:00
|
|
|
|
2019-03-20 04:17:12 -05:00
|
|
|
### Settings
|
2019-01-13 06:04:05 -06:00
|
|
|
|
2019-03-20 04:17:12 -05:00
|
|
|
* `rust-analyzer.highlightingOn`: enables experimental syntax highlighting
|
|
|
|
|
* `rust-analyzer.showWorkspaceLoadedNotification`: to ease troubleshooting, a
|
|
|
|
|
notification is shown by default when a workspace is loaded
|
|
|
|
|
* `rust-analyzer.enableEnhancedTyping`: by default, rust-analyzer intercepts
|
|
|
|
|
`Enter` key to make it easier to continue comments
|
|
|
|
|
* `rust-analyzer.raLspServerPath`: path to `ra_lsp_server` executable
|
|
|
|
|
* `rust-analyzer.enableCargoWatchOnStartup`: prompt to install & enable `cargo
|
|
|
|
|
watch` for live error highlighting (note, this **does not** use rust-analyzer)
|
|
|
|
|
* `rust-analyzer.trace.server`: enables internal logging
|
2019-01-13 06:04:05 -06:00
|
|
|
|
2018-10-09 08:00:20 -05:00
|
|
|
|
2019-03-20 04:17:12 -05:00
|
|
|
## Emacs
|
2018-09-16 07:36:09 -05:00
|
|
|
|
2019-03-20 04:17:12 -05:00
|
|
|
Prerequisites:
|
2019-01-13 08:13:54 -06:00
|
|
|
|
2019-03-20 04:17:12 -05:00
|
|
|
`emacs-lsp`, `dash` and `ht` packages.
|
2019-01-13 08:13:54 -06:00
|
|
|
|
2019-03-20 04:17:12 -05:00
|
|
|
Installation:
|
2019-01-13 08:13:54 -06:00
|
|
|
|
2019-03-20 04:17:12 -05:00
|
|
|
* add
|
|
|
|
|
[ra-emacs-lsp.el](https://github.com/rust-analyzer/rust-analyzer/blob/69ee5c9c5ef212f7911028c9ddf581559e6565c3/editors/emacs/ra-emacs-lsp.el)
|
|
|
|
|
to load path and require it in `init.el`
|
|
|
|
|
* run `lsp` in a rust buffer
|
|
|
|
|
* (Optionally) bind commands like `join-lines` or `extend-selection` to keys
|
