[core libraries] Re: Name for unary unboxed one-tuple

Wed Apr 25 17:40:51 UTC 2018

You mean can you say (# Int #) and (# x #).  Yes, of course.  They would presumably be synonymous with (Solo# Int) and (Solo# x).   Just as (# Int, Bool #) is synonymous with (#,#) Int Bool etc.

Simon

From: David Feuer <david.feuer at gmail.com>
Sent: 25 April 2018 18:38
To: Simon Peyton Jones <simonpj at microsoft.com>
Cc: Edward Kmett <ekmett at gmail.com>; Andrew Martin <andrew.thaddeus at gmail.com>; core-libraries-committee at haskell.org; Haskell Libraries <libraries at haskell.org>; ghc-devs at haskell.org
Subject: Re: [core libraries] Re: Name for unary unboxed one-tuple

One question I don't remember seeing resolved. Will we still be able to use the old data constructor syntax and (fully applied) type constructor syntax? These are used a good bit in the wild.

On Wed, Apr 25, 2018, 1:34 PM Simon Peyton Jones via Libraries <libraries at haskell.org<mailto:libraries at haskell.org>> wrote:
OK great, thanks.  Solo# is it.  Adding ghc-devs: would someone like to make a patch?

Simon

From: Edward Kmett <ekmett at gmail.com<mailto:ekmett at gmail.com>>
Sent: 25 April 2018 17:13
To: Andrew Martin <andrew.thaddeus at gmail.com<mailto:andrew.thaddeus at gmail.com>>
Cc: Simon Peyton Jones <simonpj at microsoft.com<mailto:simonpj at microsoft.com>>; core-libraries-committee at haskell.org<mailto:core-libraries-committee at haskell.org>; Haskell Libraries <libraries at haskell.org<mailto:libraries at haskell.org>>
Subject: Re: [core libraries] Re: Name for unary unboxed one-tuple

Argh. Not another color for the bikeshed. We were so close to a nice universal consensus given your +1 on the thread. =)

Let's end this and just go with Simon's Solo# as it had already achieved a reasonably wide consensus on the thread and we can put this to bed.

Simon: I'd replied a couple of weeks ago on the trac ticket to try to end this, but apparently didn't visibly weigh in in a fashion that obviously carried the full force of the committee.

-Edward

On Wed, Apr 25, 2018 at 8:40 AM, Andrew Martin <andrew.thaddeus at gmail.com<mailto:andrew.thaddeus at gmail.com>> wrote:
My vote is for Single/Single#.

Also, in case there is any confusion around this, I was not a member of the CLC when this issue was originally raised, but the committee has accepted me since then.

On Wed, Apr 25, 2018 at 4:28 AM, Simon Peyton Jones via Libraries <libraries at haskell.org<mailto:libraries at haskell.org>> wrote:
Dear Libraries Committee
Some time ago Andrew Martin asked you<https://mail.haskell.org/pipermail/libraries/2018-January/028419.html> what the name of the unary unboxed one-tuple type and data constructor should be.  The thread ran for a while, but you never came to a conclusion.
Can we nail this one?   You’ll see on Trac #14673<https://ghc.haskell.org/trac/ghc/ticket/14673#comment:19> that chessai wants me to decide 😊.  But it should really be you.
To me, there seems to be something of a consensus around Solo#.
Simon
PS: actually I think Andrew may have addressed libraries@ rather than core-libraries-committee@ by mistake.

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