#8026: DatatypeContexts should be fixed, not deprecated -------------------------------+-------------------------------------------- Reporter: gidyn | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Resolution: | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Difficulty: Unknown Testcase: | Blockedby: Blocking: | Related: -------------------------------+-------------------------------------------- Comment(by monoidal): @gidyn: You probably meant `x :: Eq a => Pair a -> a`. Consider isaacdupree's `equal (undefined :: Pair (() -> ()))`. Surely this should be legal: `undefined` inhabits every type. Yet attempting to evaluate it leads to using `==` from `Eq (() -> ())` which does not exist. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/8026#comment:9 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler