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Make Param representationally polymorphic #137

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treeowl opened this issue Oct 15, 2021 · 0 comments
Open

Make Param representationally polymorphic #137

treeowl opened this issue Oct 15, 2021 · 0 comments

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@treeowl
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treeowl commented Oct 15, 2021

You have

newtype instance Param n (a :: Type)
  = StarParam { getStarParam :: a}

If you're willing to drop getStarParam (and make the constructor name a tad weird), then on recent GHC you can change this to

newtype instance Param n (a :: TYPE rep)
  = StarParam a

This obviously does nothing for lenses, but it strikes me as the right thing for GenericN itself.
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