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Merge #2559
2559: Add some granularity to syntax highlighting. r=matklad a=omerbenamram

Hi,

I wanted to start using `rust-analyzer` a bit more frequently - one of the main blockers for me so far was the highlighting.

I just discovered it's possible to override the default colors with `ralsp.<something>` setting without waiting for #2061!

However, the current implementation was lumping a bunch of different tokens into `type` and `literal`.
The golden standard IMO is what Clion is currently doing (and is my current daily driver for rust).

Clion allows users to control the coloring for specific literal kinds, and the default is to distinguish between them (numerics get a different color from strings, and special colors for bytestrings).

I've also splitted the builtin types, which are also allowed to be highlighted speratly.
My goal is to match the default experience I'm getting with clion.
The only blockers now I think is that `rust-analyzer` doesn't corrently infer types in some situations, so the highlighting information is incorrect in those cases.

This is what it looks like so far (with colors overriden to match clion's theme):
![image](https://user-images.githubusercontent.com/2467993/70848219-ccd97900-1e76-11ea-89e1-2e467cfcc9fb.png)

If there are any other changes you feel is necessary let me know.

I did leave the default colors to match the current behavior, since I'm not familiar with the colors for this theme, I added some random (different) colors in the test to check that it indeed was working.



Co-authored-by: Omer Ben-Amram <omerbenamram@gmail.com>
2019-12-15 09:00:11 +00:00
.cargo Alternative quite tests alias 2019-11-20 22:22:32 +03:00
.github Skip slow tests by default 2019-12-07 13:19:42 +01:00
.vscode Add rollup sourcemap and fix launch.json 2019-12-09 03:58:43 +08:00
crates Merge #2559 2019-12-15 09:00:11 +00:00
docs Code: check whether the LSP binary is in PATH 2019-12-08 15:04:37 +02:00
editors Merge branch 'refs/heads/master' into feature/granular-scopes 2019-12-14 17:29:30 +02:00
xtask Use rustup toolchain instead of rustup install 2019-12-08 23:13:56 +08:00
.gitattributes Set text to autodetect and use LF 2019-11-14 19:44:37 -05:00
.gitignore Updated the gitignore 2019-04-05 22:06:15 +01:00
bors.toml fix bors integration 2019-11-18 12:59:09 +03:00
Cargo.lock Switch to the new location for impls 2019-12-12 14:25:34 +01:00
Cargo.toml ⬆️ rowan 2019-12-04 17:15:55 +01:00
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README.md Code: check whether the LSP binary is in PATH 2019-12-08 15:04:37 +02:00
rustfmt.toml Remove forcing \n via rustfmt 2019-11-02 22:19:59 +03:00

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

Ferrous Systems

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 xtask install

# alternatively, install only the server. Binary name is `ra_lsp_server`.
$ cargo xtask install --server

For non-standard setup of VS Code and other editors, or if the language server cannot start, 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

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.