Rerefined.Refine.Unsafe

Unsafe refining.

Sometimes, you know that your value satisfies some predicate before validating. For those cases, we permit skipping validation and obtaining a refined value "for free".

You should be certain that your value cannot possibly fail the predicate you are skipping. A good practice is to annotate all call sites with an explanation of why the usage is safe.

Documentation

unsafeRefine :: a -> Refined p a

Construct a Refined without validating the predicate p.

Unsafe. Use only when you can manually prove that the predicate holds.

unsafeRefine1 :: f a -> Refined1 p f a

Construct a Refined1 without validating the predicate p.

Unsafe. Use only when you can manually prove that the predicate holds.

unsafeRerefine :: forall pNew pOld a. Refined pOld a -> Refined pNew a

Replace a Refined's predicate without validating the new prdicate pNew.

Unsafe. Use only when you can manually prove that the new predicate holds.