[Haskell-cafe] Store type-class polymorphic values generically
Fri Oct 4 10:26:49 UTC 2013
On 4 October 2013 10:56, Heinrich Apfelmus <apfelmus at quantentunnel.de> wrote:
> In particular, the Locker stores arbitrary values like Dynamic , except
> that values are extracted and removed with the help of a Key . This gets
> rid of the Typeable constraint.
lock :: Key a -> a -> Locker
I can't pass anything with class constraints to that.
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