Proposal: derive Typeable for Data.Monoid types

Herbert Valerio Riedel hvr at
Tue May 27 08:36:46 UTC 2014

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 #-}`

which should take care of not forgetting a 'deriving Typeable' in the
future for any new entities defined in Data.Monoid.

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