On 3/19/2012 5:13 AM, Bas van Dijk wrote:

On 18 March 2012 18:30, Patrick Palka wrote:

...

Proposed instance definition:

instance Functor Handler where fmap f (Handler h) = Handler (fmap f . h) Nice idea. +1

Bas

This proposal is over three months old, and no one has raised any objections. I'm going to go ahead and create a ticket on the GHC Trac to have this included.