[Haskell-cafe] The Good, the Bad and the GUI

[Tom Ellis]

On Wed, Aug 13, 2014 at 05:21:28PM -0700, John Lato wrote:
> On Wed, Aug 13, 2014 at 4:21 PM, Tom Ellis
> >     data LineItem = LineItem { name :: Maybe String
> >                              , quantity :: Maybe Quantity
> >                              , price :: Maybe Price }
> 
> Rather than this definition, what about something like:
> 
>     data LineItemF f = LineItem
>         { name :: f String
>         , quantity :: f Quantity
>         , price :: f Price }

It seems Wojtek already objected to this approach, though perhaps that
objection could be overcome

    http://www.haskell.org/pipermail/haskell-cafe/2014-August/115528.html