2019-09-19

Volunteers wanted

• “Better error message when attempting to instantiate tuple structs with private fields” #58017
  • Volunteer wanted to bisect this issue.

Backport nominations

• “fn ptr is structural match” #64431

  • Accepted for beta backport

• “fix nounwind attribute logic” #63909

  • Declined for beta backport

Working group sync

wg-self-profile

Three main things being worked on:

1. Getting the “minimum viable product” done as planned #58967

2. Improving the ergonomics of self-profiling

• we want to collect use cases on irlo and then try to come up with good, tooling assisted workflows for those use cases

3. Use self-profiling to implement a feature that allows to attribute compile time to specific parts of the source code

• this feature is currently still in the brainstorming phase
• comments welcome https://github.com/rust-lang/measureme/issues/51

Link to full discussion

wg-rls-2.0

• Chalk has been integrated, a number of performance problems have been fixed, and now it works great!

• Macro by example and associated macro resolution work well enough to cover significant subset of the real world code

• We added a simple hack to show compiler errors by just running cargo check

• First win of librarification: rustc and rust-analyzer share the same lexer code!

• After slowing down during August, they are starting the next sprint. The goal is to library-ify type-relating things: so, chalk + unification + a definition of Ty

Link to full discussion