Re: [Haskell-beginners] How to write the FromJSON instance for CUid

Didn't even occur to me that there would already be a Word32 instance. Looking at the source, it absolutely deals with every case automatically. On Fri, Aug 10, 2018 at 4:05 AM, PICCA Frederic-Emmanuel < frederic-emmanuel.picca@synchrotron-soleil.fr> wrote:

Hello, and thanks for the reply

What about this

instance FromJSON CGid where parseJSON x = CGid <$> (parseJSON x :: Parser Word32) {-# INLINE parseJSON #-}

Do you think that it deal with all the problem you are trying to prevent ?

Cheers

Fred _______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners