#11067: Spurious superclass cycle error with type equalities -------------------------------------+------------------------------------- Reporter: oerjan | Owner: Type: bug | Status: new Priority: normal | Milestone: 8.0.1 Component: Compiler (Type | Version: 7.10.2 checker) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by simonpj): * cc: kylcarte@… (added) Comment: Can I ask: does `wip/T11067` make it easier? It's pretty simple: with `UndecidableSuperClasses` the whole superclass restriction is lifted. Adding kylcarte@gmail.com in cc, who is the author of type-combinators Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11067#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler