Re: [Haskell-cafe] Default definitions for associated type synonyms

Dreixel wrote:

Hello,

Does anyone know if it is possible to specify a default definition for an associated type synonym? When I tried:

class A a where

...

type B a = a

GHC (version 6.9.20080309) told me: "Type declaration in a class must be a kind signature or synonym default". However, when I look at the parser I see no way to specify such synonym default. Is this possible?

I'm curious... so, cc'ing glasgow-haskell-users mailinglist because the question is more likely to be noticed by relevant people there.

Thanks, Zé Pedro