#12430: TypeFamilyDependencies accepts invalid injectivity annotation -------------------------------------+------------------------------------- Reporter: vagarenko | Owner: (none) Type: bug | Status: new Priority: high | Milestone: Component: Compiler (Type | Version: 8.0.1 checker) | Keywords: Resolution: | InjectiveFamilies Operating System: Unknown/Multiple | Architecture: Type of failure: GHC accepts | Unknown/Multiple invalid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by RyanGlScott): * keywords: => InjectiveFamilies Comment: Even simpler: {{{#!hs {-# LANGUAGE TypeFamilyDependencies #-} module Bug where type C a = Int type family F x = y | y -> x where F x = C x }}} I'm on this. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12430#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler