Enabling TypeHoles by default

[Erik Hesselink]

I think that's a good idea. It was also suggested in a reddit thread
[0] a year ago, and it doesn't seem like that thread has any arguments
against it.

Erik

[0] http://www.reddit.com/r/haskell/comments/10u7xr/ghc_head_now_features_agdalike_holes/c6gvy0r

On Mon, Jan 13, 2014 at 8:03 PM, migmit <migmit at gmail.com> wrote:
> Agreed. Having it in 7.8 would be very nice, and yes, I don't see how it can
> break anything.
>
> Отправлено с iPad
>
> 13 янв. 2014 г., в 22:54, Edward Kmett <ekmett at gmail.com> написал(а):
>
> I have to admit, I rather like this suggestion.
>
> -Edward
>
>
> On Mon, Jan 13, 2014 at 1:42 PM, Krzysztof Gogolewski
> <krz.gogolewski at gmail.com> wrote:
>>
>> Hello,
>>
>> As discussed on ghc-devs, I propose to enable -XTypeHoles in GHC by
>> default. Rationale:
>>
>> (1) This way holes are far easier to use; just entering "_" allows to
>> check type of a subexpression, no need of adding "-XTypeHoles".
>>
>> (2) This affects error messages only; i.e. the set of programs that
>> compile stays the same - Haskell 2010. The only exception is that if you use
>> -fdefer-type-errors, then a program with a hole compiles, but this seems
>> fine with philosophy of -fdefer-type-errors.
>>
>> If so: would you like it to be in 7.8 or wait a cycle? My preference is
>> 7.8, two people (John and Richard) suggested 7.10.
>>
>> -KG
>>
>> _______________________________________________
>> Glasgow-haskell-users mailing list
>> Glasgow-haskell-users at haskell.org
>> http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
>>
>
> _______________________________________________
> Glasgow-haskell-users mailing list
> Glasgow-haskell-users at haskell.org
> http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
>
>
> _______________________________________________
> Glasgow-haskell-users mailing list
> Glasgow-haskell-users at haskell.org
> http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
>