#8176: Language extensions not registered ------------------------------------------+-------------------------------- Reporter: duncan | Owner: Type: bug | thoughtpolice Priority: normal | Status: new Component: Compiler | Milestone: 7.8.1 Resolution: | Version: 7.7 Operating System: Unknown/Multiple | Keywords: Type of failure: None/Unknown | Architecture: Test Case: tests/driver/T4437.hs | Unknown/Multiple Blocking: | Difficulty: Unknown | Blocked By: | Related Tickets: ------------------------------------------+-------------------------------- Comment (by duncan): So comparing with what we comitted during the recent Zurich hackathon: https://github.com/haskell/cabal/commit/d40207efec3133735cee89aec17974ea6c30... * OverloadedLists * EmptyCase * AutoDeriveTypeable * NegativeLiterals * NumDecimals * NullaryTypeClasses We added all these because they were documented in the user guide already. We didn't add TypeHoles on the theory that it would not be used in released packages. However on reflection it would be better to add it as a registered extension but to have an explicit check for it not being used in distributed packages (e.g. like we complain about -Werror). So what are we still missing then? * ExplicitNamespaces * AllowAmbiguousTypes We should check these are documented in the user guide and then register them in Language.Haskell.Extensions. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8176#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler