Quoting Bas van Dijk <v.dijk....@gmail.com>:
On 26 January 2013 14:47, <j...@stuttard.org> wrote:
ghc doesn't seem to be unifying deriveJSON (String->String)
parameter with id :: a -> a.
It seems you're using aeson HEAD. Note that the deriveJSON from the
released aeson-0.6.1.0 as the type:
Thanks for the instant help :) Now I know that
versions numbers on github don't necessarily get bumped
if there's a breaking change. I got confused when I found
the hackage documentation was different .
Cheers
deriveJSON :: (String -> String) -> Name -> Q [Dec]
But in aeson-HEAD it has the following type:
deriveJSON :: Options -> Name -> Q [Dec]
Cheers,
Bas
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