Minor containers API changes
ekmett at gmail.com
Wed Nov 30 06:48:56 CET 2011
Another issue is that containers tries to remain with a public API that is very close to Haskell 98/2011 for portability.
Sent from my iPad
On Nov 28, 2011, at 10:09 PM, Johan Tibell <johan.tibell at gmail.com> wrote:
> On Mon, Nov 28, 2011 at 5:29 PM, Kazu Yamamoto <kazu at iij.ad.jp> wrote:
>> This is off-topic but I'm curious.
>> Why the container package does not provide a type-class to unify APIs?
>> Are there any technical/historical reasons?
> Mostly technical I would say. I hope we should be able to do this
> right now when we have constraint kinds  i.e. we can do something
> class Map m where
> type C :: Constraints
> insert :: C => k -> v -> Map k v -> Map k v
> instance Map HashMap where
> type C = Ord
> insert = ...
> 1. http://blog.omega-prime.co.uk/?p=127
> -- Johan
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