[Haskell-cafe] Generic "to tuple" function

[Roman Cheplyaka]

On 26/12/14 20:18, Michael Orlitzky wrote:
> I have tons of code like this:
> 
>   from_tuple = uncurry MLBBoxScoreGameBreakdownXml
>   to_tuple (MLBBoxScoreGameBreakdownXml a h) = (a,h)
> 
> The first function, from_tuple, generalizes easily with `uncurryN` from
> Data.Tuple.Curry. But I'm wondering, is there any generic function that
> will take a simple data type and cram it into a tuple?
> 
> So instead of writing,
> 
>   from_tuple = uncurryN MLBBoxScoreGameBreakdownTeamXml
>   to_tuple (MLBBoxScoreGameBreakdownTeamXml w x y z) = (w,x,y,z)
> 
> I could just do,
> 
>   from_tuple = uncurryN MLBBoxScoreGameBreakdownTeamXml
>   to_tuple = toTupleGeneric
> 
> because things get real ugly when there are ~20 fields in the data type.

Should be easy to do with the generics-sop package.

Roman