#10514: Generic for existential types -------------------------------------+------------------------------------- Reporter: andreas.abel | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Core Libraries | Version: 7.10.1 Resolution: | Keywords: Generics Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #8560 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by RyanGlScott): I think that we'd need new language extensions (`QuantifiedConstraints` and `ImplicationConstraints`) to do this properly. See [https://ghc.haskell.org/trac/ghc/ticket/5927#comment:17 my comment] on #5927. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10514#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler