Purescript Refined
A Purescript port of Refined.
Allows one to create types that restrain the values inside, and automatically generate validators for them.
For instance:
type DiceRoll = Refined (FromTo D1 D6) Int
invalidDiceRoll :: Either RefinedError DiceRoll
invalidDiceRoll = refine 8
-- invalidDiceRoll = Left (FromToError 1 6 8)
validDiceRoll :: Either RefinedError DiceRoll
validDiceRoll = refine 5
-- validDiceRoll = Right DiceRoll
diceRollToInt :: DiceRoll -> Int
diceRollToInt = unrefineThis package also contains EncodeJson and DecodeJson instances for Argonaut so that JSON data can be validated.
Documentation can be found on Pursuit
