Witch.Lift

Documentation

liftedFrom :: forall source target. (TryFrom source target, Lift target, Show source, Typeable source, Typeable target) => source -> Q (TExp target)

This is like unsafeFrom except that it works at compile time rather than runtime.

-- Avoid this:
unsafeFrom @s "some literal"

-- Prefer this:
$$(liftedFrom @s "some literal")

liftedInto :: forall target source. (TryFrom source target, Lift target, Show source, Typeable source, Typeable target) => source -> Q (TExp target)

This is like unsafeInto except that it works at compile time rather than runtime.

-- Avoid this:
unsafeInto @t "some literal"

-- Prefer this:
$$(liftedInto @t "some literal")