[Haskell-cafe] Fwd: Increasing Haskell modularity

Roman Cheplyaka roma at ro-che.info
Thu Oct 2 09:08:39 UTC 2014

On 02/10/14 02:50, Richard Eisenberg wrote:
> For what it's worth, I think I can agree that types like `Set` should
> carry around the relevant `Ord` dictionary.

What exactly do you mean by that? Redefining the Set type so that it
carries a dictionary, such as

  data Set a where
    Bin :: Ord a => ...

or somehow modifying GHC's internal dictionary passing mechanism without
changing any user code (such as Data.Set)?


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