[Haskell-beginners] Type constructors sharing a common field

[Michael Orlitzky]

On 04/28/2014 02:26 PM, Lorenzo Tabacchini wrote:
> 
> Would it make sense to have a GHC extension (or even to make a Template
> Haskell hack) for this feature?
> 

http://www.well-typed.com/blog/84/