#14840: QuantifiedConstraints: Can't define class alias -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: (none) Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 8.5 Resolution: fixed | Keywords: | QuantifiedConstraints wipT2893 Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): OK so the Description is not-a-bug. I don't understand comment:1. You seem to be giving a quantified constraint like {{{ forall (sum :: Constraint). blah => sum }}} which asserts that for ANY constraint we can solve with this quantified constraint. That can't be right can it? I'll close this ticket, but do open a new one if you think comment:1 holds water somehow. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14840#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler