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bors[bot] 010d902021
Merge #2726
2726: Improve profiling output when duration filter is specified r=matklad a=michalt

In particular:

  - Use strict inequality for comparisons, since that's what the filter
    syntax supports.

  - Convert to millis for comparisons, since that's the unit used both
    for the filter and when printing.

Now something like `RA_PROFILE='*>0'` will only print things that took
at least 1ms (when rounded to millis).

Signed-off-by: Michal Terepeta <michal.terepeta@gmail.com>

Co-authored-by: Michal Terepeta <michal.terepeta@gmail.com>
2020-01-06 09:41:14 +00:00
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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.