#10009: type inference regression when faking injective type families -------------------------------------+------------------------------------- Reporter: aavogt | Owner: Type: bug | Status: closed Priority: high | Milestone: 7.10.1 Component: Compiler (Type | Version: 7.10.1-rc1 checker) | Keywords: Resolution: worksforme | Architecture: Operating System: Unknown/Multiple | Unknown/Multiple Type of failure: GHC rejects | Test Case: valid program | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Changes (by dfeuer): * status: new => closed * resolution: => worksforme Comment: I just tested with 7.11.20150103 and I couldn't reproduce the problem. I tried {{{ where a = f (undefined :: F a) :: a where a :: a = f (undefined :: F a) --and also where a :: a a = f (undefined :: F a) }}} so unless there's some code missing from this example, it's been fixed. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10009#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler