On Tue, Feb 27, 2007 at 02:00:29PM -0500, Jacques Carette wrote:
> If I have a class, say
> class Symantics repr where
> int:: Int -> repr Int
>
> and so on, I would like to *require* that 'repr' be covariant. Is there
> any way to do that?
class Functor repr => Symantics repr
would b
If I have a class, say
class Symantics repr where
int:: Int -> repr Int
and so on, I would like to *require* that 'repr' be covariant. Is there
any way to do that?
Jacques
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