#13175: Documenting what can be derived 'out of the box' by GHC's "deriving" -------------------------------------+------------------------------------- Reporter: carette | Owner: Type: task | Status: new Priority: normal | Milestone: Component: Documentation | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Documentation | Unknown/Multiple bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by RyanGlScott): Thank you for the report. So you're correct in that the list of //stock// derivable classes is not so Google-able (where `stock` is terminology that I use in the upcoming `DerivingStrategies` GHC extension, documented [https://ghc.haskell.org/trac/ghc/wiki/Commentary/Compiler/DerivingStrategies here]). That `DerivingStrategies` wiki page information does need to be in a more public location, I admit. The users' guide actually //does// list all of the stock derivable classes that are available via GHC extensions in http://downloads.haskell.org/~ghc/8.0.1/docs/html/users_guide/glasgow_exts.h... #deriving-instances-of-extra-classes-data-etc. But we don't currently list the stock derivable classes that were already mentioned in the Haskell Report (`Bounded`, `Enum`, `Ix`, `Eq`, `Ord`, `Read`, and `Show`). If I recapped those classes in that section of the users' guide, would that work for you? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13175#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler