On Mar 8, 2016, at 7:17 PM, Evan Austin <[email protected]> wrote:
> The wiki page for Phase I of Dependent Haskell describes an approach to 
> constrained type families:
> https://ghc.haskell.org/trac/ghc/wiki/DependentHaskell/Phase1#Typefamilyequationscanbeconstrained
> 
> Did that land in GHC 8.0 and, if so, is the updated syntax documented 
> somewhere?

No, it didn't make it. The motivating test case seemed contrived and so we 
punted on this one.

Do you have a use case that really needs this feature? That would help to 
motivate it for 8.2 or beyond.

Thanks!
Richard

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