The compiler team had our weekly triage meeting on 2020-02-06. You can find the minutes on the compiler-team repository. Each week, we have general announcements from the team followed by check-ins from two of the compiler team working groups.

Announcements

• There is a design meeting this Friday (2020-02-07) on parser-librarification.

• @davidtwco has made progress on the polymorphization effort and has posted a status update.

• @mw has posted a major change proposal to make incremental compilation respect the -Ccodegen-units setting.

• Cargo report future-incompat rfc#2834 is on track to get an FCP merge request from the cargo team in the near future.

Working group sync

wg-rls-2.0

• The Chalk dependency has been updated which dramatically reduced crashes.

• cargo check handling has been moved ino the server so all editors not just VS Code benefit.

• @matklad and @nikomatsakis have been working on an RFC to merge RLS and Rust Analyzer officially.

• Work is proceeding on "production readiness".

  • Binary releases are available on the project's GitHub page.
  • Planning to publish to VS Code extension marketplace "soon".

wg-self-profile

• The "Minimum Viable Product" has been completed!

  • Self-profiling is enabled for all perf.rust-lang.org runs and we automatically publish the data. (Example)

• @mw implemented query-key recording so queries can now be attributed to individual query invocations.

• The crox utility, which generates Chromium profiler compatible trace data, can now generate profiles for entire Cargo invocations via the --dir flag.

  • This allows inspecting various rustc processes and their individual threads on a common timeline with full query data.

• Quite a few people have tried -Zself-profile and have said they found it very useful!