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Add a note on transitivity. #3

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Add a note on transitivity. #3

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3 changes: 3 additions & 0 deletions src/Unsafe/Reference.purs
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Expand Up @@ -4,6 +4,9 @@ module Unsafe.Reference
) where

-- | Compares two values of the same type using strict (`===`) equality.
-- |
-- | It should not be used to define `Eq` instances, as it breaks the
-- | transitivity law for expressions (it is only transitive on values).
unsafeRefEq :: forall a. a -> a -> Boolean
unsafeRefEq = reallyUnsafeRefEq

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