#15322: `KnownNat` does not imply `Typeable` any more when used with plugin -------------------------------------+------------------------------------- Reporter: chshersh | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.4.3 Resolution: | Keywords: | typeable,knownnat Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: #10348 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj):
I have used type-nats a few times and every time I used them, I have been bitten by GHC not recognizing apartness between nats
Interesting. Another possibility would be to build into GHC more knowledge about `KnownNat`. But making it possible for plugins to specify apartness would also be good. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15322#comment:16 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler