#9069: -XDeriveTraversable should imply -XDeriveFunctor and -XDeriveFoldable -------------------------------------+------------------------------------ Reporter: sjoerd_visscher | Owner: Type: feature request | Status: patch Priority: normal | Milestone: Component: Compiler | Version: 7.8.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by simonpj): OK, thanks. You missed the flag reference summary list [http://www.haskell.org/ghc/docs/latest/html/users_guide/flag- reference.html Section 4.20.12], where flag implications should be summarised. But that's not surprising since `DeriveTraversable` and friends aren't even listed there. Could you do us a favour? * Add the `Derive`X extensions to that table * Put the whole table in alphabetical order of extension name * Check that there are no more missing one * Check that all implications are listed. That would be a very useful service. It could be a separate patch. Meanwhile, Austin, please commit. Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9069#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler