Re: [ghc-steering-committee] Please review #366: DuplicateRecordFields without ambiguous field access, Shepherd: Tom Harding

For the sake of completeness, let me note that Ocaml has a type-based disambiguation of the sort. I've never heard anyone complain about it (though maybe they have); however I've never knowingly depended on it myself, so I'm not a good devil's advocate here. On Wed, Nov 4, 2020 at 8:45 PM Alejandro Serrano Mena wrote:

I have never used DuplicateRecordFields, but this simplification makes sense to me.

Alejandro

El mié., 4 nov. 2020 a las 19:02, Richard Eisenberg () escribió:

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I am in favor -- I've never liked the current behavior much and will be glad to see it removed.

Richard

On Nov 4, 2020, at 11:49 AM, Spiwack, Arnaud wrote:

I have no strong opinion about this proposal, although removing code is always good.

I find the argument about pattern synonyms convincing, however. And the idea of using `RecordDotSyntax` and type classes to sort type-oriented disambiguation out is certainly appealing.

So take my vote as a soft yes.

/Arnaud

On Wed, Nov 4, 2020 at 5:09 PM Eric Seidel wrote:

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I agree that the current behavior is often unintuitive and would be better supported by RecordDotSyntax.

On Wed, Nov 4, 2020, at 10:27, Simon Peyton Jones via ghc-steering-committee wrote:

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As I say on the discussion thread, I’m strongly in favour.

Simon

*From:* ghc-steering-committee *On Behalf Of *Tom

Harding

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*Sent:* 04 November 2020 15:22 *To:* ghc-steering-committee@haskell.org *Subject:* Re: [ghc-steering-committee] Please review #366: DuplicateRecordFields without ambiguous field access, Shepherd: Tom Harding

Hi all,

I’d like to open committee discussion for *DuplicateRecordFields without ambiguous field access*. Other committee members have already commented, and I’ll say I’m strongly in favour of this proposal. I definitely see the suggestion here as “tidying up” an unintuitive - perhaps even counterintuitive - behaviour.

https://github.com/ghc-proposals/ghc-proposals/pull/366 < https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fghc-proposals%2Fghc-proposals%2Fpull%2F366&data=04%7C01%7Csimonpj%40microsoft.com%7C943716dad34746aa01dd08d880d57d9e%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637401003095757046%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=8T%2FxKBAkwtJgmCeg0%2BIr8IuOURniTXvGd%2F7%2FbIgbcGg%3D&reserved=0>

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Thanks,

Tom

PS. Sorry for my recent absence; I think it has been a very strange

few

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months for all us!

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On 2 Nov 2020, at 09:08, Joachim Breitner wrote:

Dear Committee,

this is your secretary speaking:

DuplicateRecordFields without ambiguous field access was proposed by Adam Gundry https://github.com/ghc-proposals/ghc-proposals/pull/366 < https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fghc-proposals%2Fghc-proposals%2Fpull%2F366&data=04%7C01%7Csimonpj%40microsoft.com%7C943716dad34746aa01dd08d880d57d9e%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637401003095767043%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=O7yXaTttgOLAEC36SQF%2FK9INxrBxiUazko6iEDZOMqo%3D&reserved=0

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https://github.com/adamgundry/ghc-proposals/blob/no-ambiguous-selectors/prop...

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I’ll propose Tom Harding as the shepherd.

Please guide us to a conclusion as outlined in https://github.com/ghc-proposals/ghc-proposals#committee-process

Thanks, Joachim -- Joachim Breitner mail@joachim-breitner.de http://www.joachim-breitner.de/

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