[Haskell-cafe] Deduce issue.

Albert Y. C. Lai trebla at vex.net
Wed Jul 30 19:37:12 UTC 2014

On 14-07-29 04:44 AM, Magicloud Magiclouds wrote:
> I should just use Widget I defined. Why not before....
> But then I am confused on type cast again. How to extract the
> existential type inside Widget?

If you really want it, you need Data.Typeable.

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