Proposal: Add an analogue of $! to deepseq
daniel.is.fischer at googlemail.com
Fri Jul 1 10:08:44 CEST 2011
On Friday 01 July 2011, 09:55:40, Ivan Lazar Miljenovic wrote:
> I propose we add a operator - tentatively labelled $!! (and which
> Hayoo reports isn't currently exported by a Hackage package) - as a
> deepseq analogue $! to the deepseq library:
> ($!!) :: (NFData a) => (a -> b) ->a -> b
> f $!! x = x `deepseq` f x
> infixr 0 $!!
I think that would be useful.
> As a sub-proposal, I also propose that we add a "force" function (the
> name of which also seems to be unused) to make it easier to test
> forcing of values:
> force :: (NFData a) => a -> a
> force x = x `deepseq` x
Could also be useful.
> Discussion time: 2 weeks
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