[ghc-steering-committee] Proposal #302: Multiway lambda: new extension or not?

[Joachim Breitner]

Hi,

accepted, with using -XLambdaCase. Thanks all!

Cheers,
Joachim

Am Samstag, dem 18.09.2021 um 12:40 +0300 schrieb Vitaly Bragilevsky:
> I've voted to extend LambdaCase. I prefer thinking that the backward
> incompatibility problem, in this case, is negligible.
> 
> Vitaly
> 
> 
> пт, 17 сент. 2021 г. в 13:25, Simon Peyton Jones via ghc-steering-
> committee <ghc-steering-committee at haskell.org>:
> > Vitaly, Tom
> > Are you there?  I’d love to hear from you about this.
> > Thanks
> > Simon
> >  
> > PS: I am leaving Microsoft at the end of November 2021, at which
> > pointsimonpj at microsoft.com will cease to work. 
> > Usesimon.peytonjones at gmail.com instead.  (For now, it just forwards
> > to simonpj at microsoft.com.)
> >  
> > From: Simon Peyton Jones <simonpj at microsoft.com>
> > Sent: 15 September 2021 13:00
> > To: ghc-steering-committee at haskell.org
> > Cc: Simon Peyton Jones <simonpj at microsoft.com>
> > Subject: RE: [ghc-steering-committee] Proposal #302: Multiway
> > lambda: new extension or not?
> >  
> > Vitaly, Eric, Tom, Alejandro
> > As Joachim says, we need to make a decision on the LambdaCase flag
> > issue.  It’s a judgement call, so let’s just vote.
> > Here is the voting sheet.  I have filled in votes from Simon,
> > myself, Joacim, Richard, Vlad.  But four of us (in the to: line)
> > have not expressed an opinion. Could you do so please, in the next
> > day or two?  It should take you 5 minutes.
> > Thanks
> > Simon
> >  
> >  
> >  
> >  
> > PS: I am leaving Microsoft at the end of November 2021, at which
> > pointsimonpj at microsoft.com will cease to work. 
> > Usesimon.peytonjones at gmail.com instead.  (For now, it just forwards
> > tosimonpj at microsoft.com.)
> >  
> > |  -----Original Message-----
> > |  From: ghc-steering-committee <ghc-steering-committee-
> > |  bounces at haskell.org> On Behalf Of Joachim Breitner
> > |  Sent: 14 September 2021 08:39
> > |  To: ghc-steering-committee at haskell.org
> > |  Subject: Re: [ghc-steering-committee] Proposal #302: Multiway
> > lambda:
> > |  new extension or not?
> > |  
> > |  Hi,
> > |  
> > |  
> > |  on the multiway-lambda story, we have voted to add \cases
> > alongside
> > |  \case. But one open question is still: Do we
> > |   (1) add -XLambdaCases (which would imply -XLambdaCase) or
> > |   (2) simply expand the meaning of -XLambdaCase.
> > |  
> > |  On the Github thread at
> > | 
> > https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgith
> > |  ub.com%2Fghc-proposals%2Fghc-
> > proposals%2Fpull%2F302%23issuecomment-
> > | 
> > 895080031&data=04%7C01%7Csimonpj%40microsoft.com%7Cea35a8831943
> > 459
> > | 
> > 9cce708d97752bd08%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C6376
> > 720
> > | 
> > 20597687362%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2l
> > uMz
> > | 
> > IiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=2ySitCA%2FT1uUzne
> > zDY
> > |  UKIO8g2ImLMKlnxm1OpKOXKZg%3D&reserved=0
> > |  we see that I lean towards (1), but SPJ leands towards (2).
> > |  
> > |  It doesn’t matter that much, but we need to make a decision. Can
> > I
> > |  please get some opinions from the rest of the committee on this
> > point?
> > |  
> > |  Cheers,
> > |  Joachim
> > |  
> > |  
> > |  --
> > |  Joachim Breitner
> > |    mail at joachim-breitner.de
> > |  
> > | 
> > https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.j
> > |  oachim-
> > | 
> > breitner.de%2F&data=04%7C01%7Csimonpj%40microsoft.com%7Cea35a88
> > 319
> > | 
> > 434599cce708d97752bd08%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7
> > C63
> > | 
> > 7672020597697367%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIj
> > oiV
> > | 
> > 2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=unmdYu9zUy00
> > ec4
> > |  21KJYmL9I2ZO%2BlIx5J9cLw27GnmI%3D&reserved=0
> > |  
> > |  
> > |  _______________________________________________
> > |  ghc-steering-committee mailing list
> > |  ghc-steering-committee at haskell.org
> > | 
> > https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmail
> > |  .haskell.org%2Fcgi-bin%2Fmailman%2Flistinfo%2Fghc-steering-
> > | 
> > committee&data=04%7C01%7Csimonpj%40microsoft.com%7Cea35a8831943
> > 459
> > | 
> > 9cce708d97752bd08%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C6376
> > 720
> > | 
> > 20597697367%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2l
> > uMz
> > | 
> > IiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=TG3t%2Fw1kFLk173S
> > oM5
> > |  soHU39BlAPv76TY%2B9FNetaLJs%3D&reserved=0
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-- 
Joachim Breitner
  mail at joachim-breitner.de
  http://www.joachim-breitner.de/