Re: [ghc-steering-committee] Please review #601: Extension lifecycle, Shepherd: Simon PJ

Hi, I am lukewarm on the proposal. Of course it would be nice to have such clear signal. But it’s going to be a lot of work to categorize all extensions initially, and then update this categorization as we go. Given that even defining a subset of “very stable and mature” (AKA GHC20xx) is something that was quite some effort, I am not fully optimistic that we’ll be able to deliver. But we can at least say we’d like to try, and then see how the categorization goes, so yea from me. Cheers, Joachim Am Donnerstag, dem 24.08.2023 um 16:42 +0100 schrieb Simon Peyton Jones:

Dear GHC steering committee

A month ago I wrote to you concerning GHC Proposal 601 about GHC extensions.

...

We propose a categorization scheme for Haskell language extensions. This scheme is simple, in that there are few categories that are described in terms of the user-relevant aspects, and it is actionable, in that it suggests concrete changes to the warning system of GHC that allow users to express their own risk tolerance and get guidance as they upgrade their compiler

It's holiday time I know, but still, I did not get a single reply.  Is that because you all love it or you all hate it?  RSVP!

I propose acceptance, modulo a few clarifications which I have posted on the discussion thread.

Please reply, yea or nay.

Simon

On Tue, 25 Jul 2023 at 15:58, Simon Peyton Jones wrote:

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Dear GHC Steering Committee

Proposal #601 says

We propose a categorization scheme for Haskell language extensions. This scheme is simple, in that there are few categories that are described in terms of the user-relevant aspects, and it is actionable, in that it suggests concrete changes to the warning system of GHC that allow users to express their own risk tolerance and get guidance as they upgrade their compiler

I'm happy with this proposal: it seems simple, comprehensible, and actionable. 

The only question in my mind is whether it is worth the bother.  I'd love to hear from the practitioners on the committee.

But I propose that we accept it.

Simon

On Mon, 24 Jul 2023 at 14:39, Joachim Breitner wrote:

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Dear Committee,

David Thrane Christiansen suggested to categorize extensions into Experimental, Mature, Deprecated and Legacy, and add warning flag to GHC that allow users to be warned about (or shouted at for) using such extensions, if they choose so.

https://github.com/ghc-proposals/ghc-proposals/pull/601 https://github.com/david-christiansen/ghc-proposals/blob/extension-lifecycle...

Because of the meta-like aspect of this proposal, I’d like to assign this to Simon PJ.

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

Cheers, Joachim

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