#10087: DefaultSignatures: error message mentions internal name -------------------------------------+------------------------------------- Reporter: andreas.abel | Owner: Type: feature request | Status: infoneeded Priority: normal | Milestone: Component: Compiler (Type | Version: 7.8.4 checker) | Resolution: | Keywords: Generics Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): Clarifications. `GenDefMeth` an `NoDefMeth` are gone. Now we just have (in `Class.hs`): {{{ type DefMethInfo = Maybe (Name, DefMethSpec Type) -- Nothing No default method -- Just ($dm, VanillaDM) A polymorphic default method, name $dm -- Just ($gm, GenericDM ty) A generic default method, name $gm, type ty -- The generic dm type is *not* quantified -- over the class variables; ie has the -- class vaiables free }}} So there are still three cases, just as stated in comment:4. But the representation has changed. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10087#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler