Re: [containers] Proposal: Change to the Data.Map Monoid

Sorry for continuing the off-topic, and for promoting a package of mine: If you only need the class definition, http://hackage.haskell.org/package/data-default-class is a better choice, with no dependencies. If you prefer a single package with all the dependencies (and with additional generics support), my own fork might be useful: http://hackage.haskell.org/package/data-default-generics Although I mirrored the original package dependencies, many of which might actually be unnecessary... (given the generics implementation). Cheers 2014-05-21 15:59 GMT+01:00 Michael Snoyman :

At the risk of veering terribly off-topic... the splitting of data-default into all of those packages caused me a bunch of dependency headaches, most of which I still don't fully comprehend. I miss the good ol' days of a single package.

On Wed, May 21, 2014 at 5:53 PM, Edward Kmett wrote:

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I find myself rather hesitant to recommend that instantiation of the idea ever since it exploded into a half-dozen packages full of orphan instances, but yes.

-Edward

On Wed, May 21, 2014 at 6:38 AM, Herbert Valerio Riedel wrote:

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On 2014-05-21 at 00:23:44 +0200, Andreas Abel wrote:

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_Lots_ of users initialize empty maps with mempty

Well, this is another issue, empty should be overloaded via

class Empty a where empty :: a

Btw, isn't this what

http://hackage.haskell.org/package/data-default

provides? _______________________________________________ Libraries mailing list Libraries@haskell.org http://www.haskell.org/mailman/listinfo/libraries

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