#15658: strange inferred kind with TypeInType -------------------------------------+------------------------------------- Reporter: dmwit | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.4.2 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- This type family has a strange kind to begin with: {{{ {-# Language TypeFamilies , TypeInType #-} type family F f a :: a }}} But it gets even stranger when you ask ghci what it thinks about F: {{{
:k F F :: * -> forall a -> a }}}
There is a forall which doesn't seem to bind any variables and hasn't got the customary delimiting dot. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15658 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler