rerefined-0.2.0: Refinement types, again
Safe HaskellSafe-Inferred
LanguageGHC2021

Rerefined.Refine

Synopsis

Refined

data Refined p a Source #

a refined with predicate p.

Instances

Instances details
Lift a => Lift (Refined p a :: Type) Source # 
Instance details

Defined in Rerefined.Refined

Methods

lift :: Quote m => Refined p a -> m Exp #

liftTyped :: forall (m :: Type -> Type). Quote m => Refined p a -> Code m (Refined p a) #

Show a => Show (Refined p a) Source # 
Instance details

Defined in Rerefined.Refined

Methods

showsPrec :: Int -> Refined p a -> ShowS #

show :: Refined p a -> String #

showList :: [Refined p a] -> ShowS #

refine :: forall p a. Refine p a => a -> Either (RefineFailure String) (Refined p a) Source #

Refine a with predicate p.

unrefine :: Refined p a -> a Source #

Strip the refinement from a Refined.

This is kept as a separate function for prettier Show Refined output.

Refined1

data Refined1 p f a Source #

f a refined with predicate p.

Instances

Instances details
Lift (f a) => Lift (Refined1 p f a :: Type) Source # 
Instance details

Defined in Rerefined.Refined1

Methods

lift :: Quote m => Refined1 p f a -> m Exp #

liftTyped :: forall (m :: Type -> Type). Quote m => Refined1 p f a -> Code m (Refined1 p f a) #

Functor f => Functor (Refined1 p f) Source # 
Instance details

Defined in Rerefined.Refined1

Methods

fmap :: (a -> b) -> Refined1 p f a -> Refined1 p f b #

(<$) :: a -> Refined1 p f b -> Refined1 p f a #

Show (f a) => Show (Refined1 p f a) Source # 
Instance details

Defined in Rerefined.Refined1

Methods

showsPrec :: Int -> Refined1 p f a -> ShowS #

show :: Refined1 p f a -> String #

showList :: [Refined1 p f a] -> ShowS #

refine1 :: forall p f a. Refine1 p f => f a -> Either (RefineFailure String) (Refined1 p f a) Source #

Refine f a with functor predicate p.

unrefine1 :: Refined1 p f a -> f a Source #

Strip the refinement from a Refined1.

This is kept as a separate function for prettier Show Refined1 output.

Errors

data RefineFailure a Source #

Predicate validation failure.

Polymorphic over the message type because I want to use Text, but want it doesn't have the convenient Show internals that String does.

Instances

Instances details
Show a => Show (RefineFailure a) Source # 
Instance details

Defined in Rerefined.Predicate