#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 diatchki): We are using the same system for `Typeable`. Have a look in `Data.Typeable.Internal` (in `base`): the functions `typeNatTypeRep` and `typeSymbolTypeRep` make the run-time representations used by the corresponding `Typeable` instances. The `ds_ev_typeable` function in `deSugar/DsBinds` just uses these functions when it needs to make evidence for `Typeable`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15322#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler