Re: [Haskell-beginners] Bool newtype

Consider replacing your bools with meaningful sum types, which avoids this issue, prevents boolean blindness, and makes your code more self-documenting. For example, instead of newtype SwitchsState = SwitchState Bool, data SwitchState = On | Off On Sun, Aug 7, 2016 at 2:47 PM Imants Cekusins wrote:

found it:

https://wiki.haskell.org/GHC/Coercible

yep, it type checks.

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