[Haskell-cafe] A point in favour of -XOverlappingInstances (and -XTypeSynonymInstances)

2008-05-17 Thread Achim Schneider
Token.hs:103:15: Overlapping instances for Show (SourcePos, Tok) arising from a use of `anyToken' at Token.hs:103:15-22 Matching instances: instance (Show a, Show b) = Show (a, b) -- Defined in GHC.Show instance [overlap ok] Show Token -- Defined at

Re: [Haskell-cafe] A point in favour of -XOverlappingInstances (and -XTypeSynonymInstances)

2008-05-17 Thread Duncan Coutts
On Sat, 2008-05-17 at 15:12 +0200, Achim Schneider wrote: Token.hs:103:15: Overlapping instances for Show (SourcePos, Tok) arising from a use of `anyToken' at Token.hs:103:15-22 Matching instances: instance (Show a, Show b) = Show (a, b) -- Defined in GHC.Show