Re: Deepseq proposed patch

On Thu, 10 Jun 2010, Julian Blake Kongslie wrote:

Control.DeepSeq has a large number of instances for its class NFData, I'd like to propose a new one:

import Data.Data

dataDeepSeq :: (Data a) => a -> a dataDeepSeq a = gmapQr ($) a (seq . dataDeepSeq) a

instance (Data a) => NFData a where rnf a = dataDeepSeq a `seq` ()

Is this an instance at all? It is not of the form NFData Type or NFData (TypeCon a) or so.