Add Hashable instance for HashSet

fehrenbach · Feb 26, 2019 · f7ff282 · f7ff282
1 parent 85e3342
commit f7ff282
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/Data/HashSet.purs b/src/Data/HashSet.purs
@@ -41,6 +41,8 @@ newtype HashSet a = HashSet (M.HashMap a Unit)
 
 derive newtype instance eqHashSet :: Eq a => Eq (HashSet a)
 
+derive newtype instance hashableHashSet :: Hashable a => Hashable (HashSet a)
+
 instance showHashSet :: Show a => Show (HashSet a) where
   show s = "(fromFoldable " <> show (toArray s) <> ")"