#7938: Unbound kind variable can appear in RHS of associated type -------------------------------------+------------------------------------- Reporter: goldfire | Owner: goldfire Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: GHC accepts | Difficulty: Easy (less than 1 invalid program | hour) Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------- Changes (by goldfire): * difficulty: => Easy (less than 1 hour) * version: 7.6.3 => 7.7 Comment: With the changes to kind inference that came with closed type families, the exact code above fails to compile, as expected. However, if we change the declaration of `Bar` to be `type Bar a :: k`, the code still compiles. Looking into this now. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7938#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler