#7903: Failure to find class instance specified with extra parentheses -----------------------------+---------------------------------------------- Reporter: conal | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.6.3 | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Blockedby: Blocking: | Related: -----------------------------+---------------------------------------------- Comment(by parcs): Hi Simon, Note that changing {{{ instance Eq (((->) a) b) }}} to {{{ instance Eq (((->) a :: * -> *) b) }}} causes the error to reappear. And in this case you can't have `splitHsAppTys` look through kind signatures as well because then the kind signature can't be checked in `tc_hs_type` since it will be discarded. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7903#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler