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Michal Terepeta be967b94e1 Fix a problem with Durability of libraries
When processing a change with added libraries, we used
`Default::default` for `SourceRoot` which sets `is_library` to false.
Since we use `is_library` to decide whether to use low or high
durability, I believe that this caused us to mark many library
dependencies as having low durability and thus increased the size of the
graph that salsa needed to verify on every change.

Based on my initial tests this speeds up the `CrateDefMapQuery` on
rust-analyzer from about ~64ms to ~14ms and reduces the number of
validations for the query from over 60k to about 7k.

Signed-off-by: Michal Terepeta <michal.terepeta@gmail.com>
2020-01-06 22:21:56 +01:00
.cargo Alternative quite tests alias 2019-11-20 22:22:32 +03:00
.github Minimize typescript CI 2019-12-30 11:33:01 +01:00
.vscode Add rollup 2019-12-30 11:20:45 +01:00
crates Fix a problem with Durability of libraries 2020-01-06 22:21:56 +01:00
docs add note in vscode instructions for vim plugin users 2020-01-05 07:37:58 -08:00
editors Merge #2714 2020-01-06 11:39:41 +00:00
xtask Switch ast declaration from ron to a macro 2020-01-03 21:54:10 +01:00
.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 Crates up 2020-01-05 22:12:26 -05:00
Cargo.toml ⬆️ rowan 2019-12-04 17:15:55 +01:00
LICENSE-APACHE Licenses 2018-01-10 22:47:04 +03:00
LICENSE-MIT Licenses 2018-01-10 22:47:04 +03:00
README.md link website 2019-12-16 18:41:03 +01:00
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.