[ghc-steering-committee] Proposal #638: Prefix form for MkSolo# (Recommend Accept)

[Simon Peyton Jones]

>
> Unless I'm misreading, the proposal is only about the constructors' name.
> Which you don't propose to change, do you?


Yes. I was questioning the proposal itself rather than the amendment.

S

On Tue, 12 Mar 2024 at 09:43, Arnaud Spiwack <arnaud.spiwack at tweag.io>
wrote:

> Unless I'm misreading, the proposal is only about the constructors' name.
> Which you don't propose to change, do you?
>
> (that being said, I think I agree with your comment that the name of the
> type ought to have been `Tuple1`, it'd make more sense)
>
> On Tue, 12 Mar 2024 at 10:38, Simon Peyton Jones <
> simon.peytonjones at gmail.com> wrote:
>
>> Well this proposal deepens the commitment to an exception for Solo and
>> Solo#.   But I'm not really objecting, just asking.
>>
>> Simon
>>
>> On Tue, 12 Mar 2024 at 09:34, Arnaud Spiwack <arnaud.spiwack at tweag.io>
>> wrote:
>>
>>> In favour.
>>>
>>> Simon: I don't think your objection pertains to this particular proposal
>>> amendment, does it? Rather it's a further change to the original proposal
>>> that you'd like to see.
>>>
>>> On Mon, 11 Mar 2024 at 11:48, Simon Peyton Jones <
>>> simon.peytonjones at gmail.com> wrote:
>>>
>>>> Thanks Matthias
>>>>
>>>> I'm generally supportive, but please see my comment exploring a minor
>>>> alternative
>>>> <https://github.com/ghc-proposals/ghc-proposals/pull/638#issuecomment-1988147639>
>>>> .
>>>>
>>>> Simon
>>>>
>>>> On Sat, 9 Mar 2024 at 00:12, Matthías Páll Gissurarson <mpg at mpg.is>
>>>> wrote:
>>>>
>>>>> Greetings committee!
>>>>>
>>>>> In [proposal #638](
>>>>> https://github.com/ghc-proposals/ghc-proposals/pull/638),
>>>>> @int-index proposes that we introduce a prefix form of MkSolo#, and
>>>>> apparent oversight in proposal #475 [Non-punning list and tuple syntax](
>>>>> https://github.com/ghc-proposals/ghc-proposals/pull/475).
>>>>>
>>>>> Previously, you would write `(# a #)` to construct a `Solo# a`.
>>>>> But the question is: what would be the prefix form of this constructor?
>>>>> It can't be `(# #)`, because this is already defined as a constructor
>>>>> of `Unit#`!
>>>>>
>>>>> This amendment proposes the `MkSolo#` constructor, having us write
>>>>> `MkSolo# a` for the prefix form. The discussion seems unanimous, after care
>>>>> was taken to clarify that a fully applied `MkSolo# a` would still be pretty
>>>>> printed as `(# a #)`, avoiding programmer confusion.
>>>>>
>>>>> It seems quite straightforward to me, so:
>>>>>
>>>>> I recommend accepting this amendment to #475.
>>>>>
>>>>>
>>>>> --
>>>>> --  Matthías Páll Gissurarson <http://mpg.is/>
>>>>> _______________________________________________
>>>>> ghc-steering-committee mailing list
>>>>> ghc-steering-committee at haskell.org
>>>>>
>>>>> https://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-steering-committee
>>>>>
>>>> _______________________________________________
>>>> ghc-steering-committee mailing list
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>>>>
>>>
>>>
>>> --
>>> Arnaud Spiwack
>>> Director, Research at https://moduscreate.com and https://tweag.io.
>>>
>>
>
> --
> Arnaud Spiwack
> Director, Research at https://moduscreate.com and https://tweag.io.
>
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