#14968: QuantifiedConstraints: Can't be RHS of type family instances -------------------------------------+------------------------------------- Reporter: josef | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 8.5 checker) | Keywords: Resolution: | QuantifiedConstraints Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9269 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by RyanGlScott): * related: => #9269 Comment: This is a particular occurrence of a more general restriction, which is explained in https://ghc.haskell.org/trac/ghc/ticket/9269#comment:1. So yes, there are fundamental difficulties here that have yet to be worked out. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14968#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler