Re: [Haskell-cafe] aeson-0.6.1.0 deriveJSON error

Quoting Bas van Dijk :

On 26 January 2013 14:47, 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