On Sat, Mar 31, 2018 at 07:54:50AM +0000, PICCA Frederic-Emmanuel wrote:
> I create a method
>
> myMethod :: MyData Collect -> IO ()
>
> but I want my method to work for MyData Collect and Mydata Caracterization but not Unchecked.
>
> So It seems to me that I can not just do
>
> myMethod :: MyData t -> IO ()
>
>
> what is the right way to solve this problem ?

Hello Frederic,
    I am in a rush so I cant write a minimal example, but wouldn't
a typeclass + make Collect and Cara instances of that typeclass do?
-F
_______________________________________________
Beginners mailing list
Beginners@haskell.org
http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners