27 May
2014
27 May
'14
4:42 a.m.
* Herbert Valerio Riedel
On 2014-05-27 at 08:31:14 +0200, Roman Cheplyaka wrote:
I was surprised to find out that wrappers like Last do not have Typeable instances. Let's add them.
Fyi, Data.Monoid has been given a `{-# LANGUAGE AutoDeriveTypeable #-}` in
http://git.haskell.org/ghc.git/commitdiff/1d1ff77aaa09efaddc8cfe0dcf92d67632...
which should take care of not forgetting a 'deriving Typeable' in the future for any new entities defined in Data.Monoid.
Cool! I take it this is already solved in HEAD, then? Any reason not to enable AutoDeriveTypeable for the whole base (and other core packages)? Roman