Mon Feb 2 05:48:29 PST 2009 [email protected]
* Add the ability to derive instances of Functor, Foldable, Traversable
Ignore-this: f3013fefdd65f75fb5060ef0e002f40e
This patch is a straightforward extension of the 'deriving' mechanism.
The ability to derive classes Functor, Foldable, Traverable is controlled
by a single flag -XDeriveFunctor. (Maybe that's a poor name.)
Still to come: documentation
Thanks to twanvl for developing the patch
M ./compiler/main/DynFlags.hs +3
M ./compiler/prelude/PrelNames.lhs -18 +36
M ./compiler/typecheck/TcDeriv.lhs -24 +92
M ./compiler/typecheck/TcGenDeriv.lhs -3 +311
M ./compiler/utils/Util.lhs +5
View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20090202134829-1287e-92c5ca803d2ccd21398a18f32352999fdbe0f957.gz
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