On Thu, Jul 3, 2008 at 10:14 PM, Claus Reinke <[EMAIL PROTECTED]> wrote:
> actually, GHC gives me "could not deduce Blah f a from Blah f1 a" >>> first. It seems that desugaring type function notation into an additional >>> constraint helps, so there's something odd going on: >>> >> >> Silly me, I didn't paste the whole type error. Yes, GHC gives both. I >> should >> add that I tested this under GHC 6.8.2. But this is known not to work >> with a >> (one/two months old) GHC head. >> > > yes, I tested with 6.9.20080514. And just in case my phrasing > was unclear: desugaring the type function application makes the > error go away, so you have a workaround. Thanks for highlighting this. Indeed I missed it, and it makes my example work. Cheers, Alexey > > > It is just confusing that this example shows that the "desugaring" > is not a desugaring, in the current implementation.. > > Claus > > >
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