Re: [ghc-steering-committee] RecordDotSyntax: please express a view

This proposal should be rejected. The contention over what whitespace around the dot operator should make it clear that even expert Haskellers aren't sure what to expect from this proposal in an intuitive way. We should wait until there's a more compelling benefit that would justify forking the syntax this dramatically. The proposal feels over-determined by present trends in lens libraries, but that's not something I have the energy to prosecute very far. I could imagine a less contentious way forward is possible but I think it's unlikely with the technical particulars at hand. I don't believe the enhanced type inference brought by RecordDotSyntax merits its inclusion given how it complicates the syntax and compatibility story. You can achieve the same with libraries now. That the existing extensions aren't as useful as they ought as compared with using a lens library is symptomatic of half-baked proposals being incorporated into GHC. We can wait until the juice is worth the squeeze and avoid an unforced error here. On Mon, Dec 9, 2019 at 4:58 PM Simon Peyton Jones via ghc-steering-committee wrote:

Dear steering committee

I'm the shepherd for the RecordDotSyntax proposal. https://github.com/ghc-proposals/ghc-proposals/pull/282

I recommend acceptance: https://github.com/ghc-proposals/ghc-proposals/pull/282#issuecomment-5634776...

Please reads the proposal, and as much of the discussion as you feel able, and respond in the next week or two to indicate your views.

Remember: ask technical questions on the Github discussion thread, and use this mailing list for more evaluative discussion of judgement or opinion.

I'd love every member of the committee to express a view. This proposal has attracted a lot of interest.

Thanks

Simon

| -----Original Message----- | From: ghc-steering-committee | On Behalf Of Joachim Breitner | Sent: 28 November 2019 10:11 | To: ghc-steering-committee@haskell.org | Subject: [EXTERNAL] [ghc-steering-committee] Please review #282: | RecordDotSyntax, Shepherd: Simon PJ | | Dear Committee, | | this is your secretary speaking: | | RecordDotSyntax language extension proposal has been proposed by Neil | Mitchell and Shayne Fletcher | https://github.com/ghc-proposals/ghc-proposals/pull/282 | https://github.com/shayne-fletcher-da/ghc-proposals/blob/record-dot- | syntax/proposals/0000-record-dot-syntax.md | | This is going to be a tricky one. It is partly about whitespace, so it | has attracted a _lot_ of community interest, by far the most so far. To | navigate that ship, I propose Simon PJ as the shepherd, because he is a | excellent moderator and community manager, and because he has the | necessary authority to hopefully get a verdict accepted. | | Please reach consensus as described in | https://github.com/ghc-proposals/ghc-proposals#committee-process | I suggest you make a recommendation, in a new e-mail thread with the | proposal number in the subject, about the decision, maybe point out | debatable points, and assume that anyone who stays quiet agrees with you. | | Thanks, | Joachim | -- | Joachim Breitner | mail@joachim-breitner.de | http://www.joachim-breitner.de/ | | _______________________________________________ | ghc-steering-committee mailing list | ghc-steering-committee@haskell.org | https://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-steering-committee _______________________________________________ ghc-steering-committee mailing list ghc-steering-committee@haskell.org https://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-steering-committee

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