<div dir="ltr">I'm not sure I understand Arnaud's question here: this proposal removes the binding capability from -XPatternSignatures. I don't think there's an interaction with -XTypeAbstractions.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jan 26, 2024 at 3:04 AM Arnaud Spiwack <<a href="mailto:arnaud.spiwack@tweag.io">arnaud.spiwack@tweag.io</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Do we envision, maybe, a future with `-XPatternSignature`, in a version that is incapable of binding and `-XTypeAbstractions`? If so, the split sounds like a reasonable move. Otherwise, the benefit of the split sounds rather slim, and it would need to be weighed against the costs and benefits on the implementation.<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 25 Jan 2024 at 07:07, Moritz Angermann <<a href="mailto:moritz.angermann@gmail.com" target="_blank">moritz.angermann@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">As this is guarded behind a language extension and as such should not impact any existing code. I'm happy to see this change.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 25 Jan 2024 at 04:43, Adam Gundry <<a href="mailto:adam@well-typed.com" target="_blank">adam@well-typed.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I'm also happily in favour, for the reason Joachim articulates.<br>
<br>
Adam<br>
<br>
<br>
On 24/01/2024 18:24, Joachim Breitner wrote:<br>
> Hi,<br>
> <br>
> Am Mittwoch, dem 24.01.2024 um 17:32 +0000 schrieb Richard Eisenberg:<br>
>> - Accepting will make at least one person (John) happy. And I don't note anyone who would become unhappy. More happy people is more better. So I recommend acceptance. :)<br>
> <br>
> unless I am mistaken, this proposal will also un-deprecated<br>
> -XPatternSignatures, and give it the semantics I asked for in #119:<br>
> allow me to write<br>
> <br>
>     foo :: Monad m => m Int<br>
>     foo = do<br>
>       list :: String <- return ""<br>
>       return $ length list<br>
> <br>
> without treading into type variable territory, having to turn on<br>
> ScopedTypeVariables or anything like that. Finally!<br>
> <br>
> <br>
> So it also makes me a bit happy; in favor.<br>
> <br>
> Cheers,<br>
> Joachim<br>
> <br>
> <br>
<br>
-- <br>
Adam Gundry, Haskell Consultant<br>
Well-Typed LLP, <a href="https://www.well-typed.com/" rel="noreferrer" target="_blank">https://www.well-typed.com/</a><br>
<br>
Registered in England & Wales, OC335890<br>
27 Old Gloucester Street, London WC1N 3AX, England<br>
<br>
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</blockquote></div><br clear="all"><br><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr">Arnaud Spiwack<br>Director, Research at <a href="https://moduscreate.com" rel="noopener noreferrer" target="_blank">https://moduscreate.com</a> and <a href="https://tweag.io" rel="noopener noreferrer" target="_blank">https://tweag.io</a>.</div></div>
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