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Add roles declarations to forbid unsafe coercions #30

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Merged
thomashoneyman merged 2 commits into from
Dec 3, 2020
Merged

Add roles declarations to forbid unsafe coercions #30

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f1bebca
Add roles declarations to forbid unsafe coercions
kl0tl Jul 18, 2020
654f631
Merge branch 'main' into roles-declarations
thomashoneyman Dec 3, 2020
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2 changes: 2 additions & 0 deletions src/Data/Options.purs
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Original file line number Diff line number Diff line change
Expand Up @@ -119,6 +119,8 @@ import Foreign.Object as Object
newtype Options :: forall k. k -> Type
newtype Options opt = Options (Array (Tuple String Foreign))

type role Options nominal

derive instance newtypeOptions :: Newtype (Options opt) _
derive newtype instance semigroupOptions ∷ Semigroup (Options opt)
derive newtype instance monoidOptions ∷ Monoid (Options opt)
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