Re: Permitting trailing commas for record syntax ADT declarations

24 Sep 2014

      ...
That also lets me somehow question the whole proposal if you can get
rid of most problems by just changing your coding style:
module A
      ( a
      , b
      , c
      ) where ...
data A = A
      { a :: Int
      , b :: Int
      , c :: Int
      }
abc = [ a
         , b
         , c
         ]
During hacking sessions I often find myself in the need of commenting out the first import /record 
field/list element. With the proposed change I can just:
   module A
      ( --a
      , b
      , c
      ) where ...

   data A = A
      { --a :: Int
      , b :: Int
      , c :: Int
      }

   abc = [ --a
         , b
         , c
         ]

As things are now I am forced to edit the second line as well. (And when I'm uncommenting things I 
need to edit the second line again). This is mostly irritating and that's why I think 
implementing this proposal will be a Good Thing.

Janek

Re: Permitting trailing commas for record syntax ADT declarations

Jan Stolarek