#13105: Allow type families in RuntimeReps -------------------------------------+------------------------------------- Reporter: goldfire | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: | LevityPolymorphism Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | typecheck/should_fail/T13105 Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj):
When that kind is TYPE (RepRep Int), the code generator throws up its arms in despair.
So presumably the Lint check that every argument is not levity-polymorphic fails? Actually seeing the code fragment would be helpful. Assuming it's a Lint failure (which I think it could be), can't the type checker just normalise before spitting out the argument code? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13105#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler