#14733: Won't use (forall xx. f xx) with -XQuantifiedConstraints -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.5 Resolution: | 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 Iceland_jack): Replying to [comment:3 simonpj]:
Currently this is by-design, but we could change the design.
I'm +1 on change but that's easy to say, is it a task that takes deep GHC knowhow?
How bad is the restriction?
Hard to say. If it's a matter of encoding them class aliases then it is a huge improvement over the current situation, otherwise may rule out a lot of fun examples. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14733#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler