#14879: QuantifiedConstraints: Big error message + can't substitute (=>) with a class alias -------------------------------------+------------------------------------- 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 simonpj):
The current implementation is very impressive. If something seem unworkable there is surprisingly often some way to guide (trick) GHC into accepting it
Well that is good news, thanks. I hope you are going to write a paper to explain the uses of quantified constraints; and in there we can explore the boundaries and he way to guide GHC. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14879#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler