Weekly-meetings/2015-03-10 (const fns; wiki; hyphens; loop statements)

alexcrichton · March 10, 2015, 11:08pm

rust-lang/meeting-minutes/blob/master/weekly-meetings/2015-03-10.md

# Agenda 2015-03-10

* Statement-ize Looping Forms? (pnkfelix) https://github.com/rust-lang/rfcs/pull/955
* group temperature on "const functions" (pnkfelix) https://github.com/rust-lang/rfcs/pull/911
* wiki (nrc)
* hyphens in crate names (acrichto) https://github.com/rust-lang/rfcs/pull/940

# Attending

- pcwalton, nmatsakis, nrc, steveklabnik, kmc, huon, aturon, acrichto

# const fns

https://github.com/rust-lang/rfcs/pull/911

- nmatsakis: Summary: eddyb opened an RFC, which allows you to write const fns with a very limited form. It's evaluable at compile time. The form is basically whatever you can put in a constant today -- basically, just one expression in the body (there are maybe some exceptions)
- nmatsakis: The main goal here isn't to enable CTFE, but rather to enable abstraction. Right now, we have to make certain fields public to allow you to write a const initializer. Examples, UnsafeCell. Right now, we use macros and stability to work around the abstraction problems.
- nmatsakis: The major pro is that it solves this problem in a more elegant way. The con is that it's a pretty big change to try to land now, if we want to use it to stabilize these things now.
- nrc: Is there an implementation?
- nmatsakis: Yes. I'm not sure whether it's been rebased -- I haven't looked closely, but I suspect it's good.

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alexcrichton · March 25, 2019, 8:24am

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Weekly-meetings/2015-03-10 (const fns; wiki; hyphens; loop statements)

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