#14822: -XQuantifiedConstraints: Turn term-level entailments (:-) into constraints (=>) -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: (none) Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 8.5 Resolution: invalid | 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): Using #14292 this can be `coerce`d rather than `unsafeCoerce`d if only we turn on `-XIncoherentInstances` and mark some parameters `representational` {{{#!hs type role Implies nominal representational type role Str representational }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14822#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler