#13206: Error in GHC.Generics documentation -------------------------------------+------------------------------------- Reporter: dsf | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: | Version: 8.0.1 libraries/base | Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- The Generic instance shown as automatically derived for the Tree type should read {{{ instance Generic (Tree a) where type Rep (Tree a) = D1 ('MetaData "Tree" "Main" "package-name" 'False) (C1 ('MetaCons "Leaf" 'PrefixI 'False) (S1 ('MetaSel 'Nothing 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 a)) :+: C1 ('MetaCons "Leaf" 'PrefixI 'False) (S1 ('MetaSel 'Nothing 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (Tree a)) :*: S1 ('MetaSel 'Nothing 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (Tree a))))) from (Leaf f) = M1 (L1 (M1 (M1 (K1 f)))) from (Node f g) = M1 (R1 (M1 ((M1 (K1 f)) :*: (M1 (K1 g))))) to (M1 (L1 (M1 (M1 (K1 f))))) = Leaf f to (M1 (R1 (M1 ((M1 (K1 f)) :*: (M1 (K1 g)))))) = Node f g }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13206 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler