Primus.One

handles a tuple of size one. this is a special type that distinguishes a singleton value from a ntuple will be replaced by Solo when ghc 9.2 is standard and generics-sop is updated to support Solo

Documentation

newtype One a

One holds a single value. To use wprint we need a SOP Generics instance

Constructors

One a

Instances

Monad One

Defined in Primus.One

Methods

(>>=) :: One a -> (a -> One b) -> One b

(>>) :: One a -> One b -> One b

return :: a -> One a

Functor One

Defined in Primus.One

Methods

fmap :: (a -> b) -> One a -> One b

(<$) :: a -> One b -> One a

Applicative One

Defined in Primus.One

Methods

pure :: a -> One a

(<*>) :: One (a -> b) -> One a -> One b

liftA2 :: (a -> b -> c) -> One a -> One b -> One c

(*>) :: One a -> One b -> One b

(<*) :: One a -> One b -> One a

Foldable One

Defined in Primus.One

Methods

fold :: Monoid m => One m -> m

foldMap :: Monoid m => (a -> m) -> One a -> m

foldMap' :: Monoid m => (a -> m) -> One a -> m

foldr :: (a -> b -> b) -> b -> One a -> b

foldr' :: (a -> b -> b) -> b -> One a -> b

foldl :: (b -> a -> b) -> b -> One a -> b

foldl' :: (b -> a -> b) -> b -> One a -> b

foldr1 :: (a -> a -> a) -> One a -> a

foldl1 :: (a -> a -> a) -> One a -> a

toList :: One a -> [a]

null :: One a -> Bool

length :: One a -> Int

elem :: Eq a => a -> One a -> Bool

maximum :: Ord a => One a -> a

minimum :: Ord a => One a -> a

sum :: Num a => One a -> a

product :: Num a => One a -> a

Traversable One

Defined in Primus.One

Methods

traverse :: Applicative f => (a -> f b) -> One a -> f (One b)

sequenceA :: Applicative f => One (f a) -> f (One a)

mapM :: Monad m => (a -> m b) -> One a -> m (One b)

sequence :: Monad m => One (m a) -> m (One a)

NFData1 One

Defined in Primus.One

Methods

liftRnf :: (a -> ()) -> One a -> ()

Traversable1 One

Defined in Primus.One

Methods

traverse1 :: Apply f => (a -> f b) -> One a -> f (One b)

sequence1 :: Apply f => One (f b) -> f (One b)

Apply One

Defined in Primus.One

Methods

(<.>) :: One (a -> b) -> One a -> One b

(.>) :: One a -> One b -> One b

(<.) :: One a -> One b -> One a

liftF2 :: (a -> b -> c) -> One a -> One b -> One c

Foldable1 One

Defined in Primus.One

Methods

fold1 :: Semigroup m => One m -> m

foldMap1 :: Semigroup m => (a -> m) -> One a -> m

toNonEmpty :: One a -> NonEmpty a

Eq a => Eq (One a)

Defined in Primus.One

Methods

(==) :: One a -> One a -> Bool

(/=) :: One a -> One a -> Bool

Data a => Data (One a)

Defined in Primus.One

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> One a -> c (One a)

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (One a)

toConstr :: One a -> Constr

dataTypeOf :: One a -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (One a))

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (One a))

gmapT :: (forall b. Data b => b -> b) -> One a -> One a

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> One a -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> One a -> r

gmapQ :: (forall d. Data d => d -> u) -> One a -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> One a -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> One a -> m (One a)

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> One a -> m (One a)

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> One a -> m (One a)

Ord a => Ord (One a)

Defined in Primus.One

Methods

compare :: One a -> One a -> Ordering

(<) :: One a -> One a -> Bool

(<=) :: One a -> One a -> Bool

(>) :: One a -> One a -> Bool

(>=) :: One a -> One a -> Bool

max :: One a -> One a -> One a

min :: One a -> One a -> One a

Read a => Read (One a)

Defined in Primus.One

Methods

readsPrec :: Int -> ReadS (One a)

readList :: ReadS [One a]

readPrec :: ReadPrec (One a)

readListPrec :: ReadPrec [One a]

Show a => Show (One a)

Defined in Primus.One

Methods

showsPrec :: Int -> One a -> ShowS

show :: One a -> String

showList :: [One a] -> ShowS

Generic (One a)

Defined in Primus.One

Associated Types

type Rep (One a) :: Type -> Type

Methods

from :: One a -> Rep (One a) x

to :: Rep (One a) x -> One a

Semigroup a => Semigroup (One a)

Defined in Primus.One

Methods

(<>) :: One a -> One a -> One a

sconcat :: NonEmpty (One a) -> One a

stimes :: Integral b => b -> One a -> One a

Monoid a => Monoid (One a)

Defined in Primus.One

Methods

mempty :: One a

mappend :: One a -> One a -> One a

mconcat :: [One a] -> One a

NFData a => NFData (One a)

Defined in Primus.One

Methods

rnf :: One a -> ()

ITupleC (One a1)

Defined in Primus.TypeLevel

Methods

toITupleC :: One a1 -> ToITupleT (One a1)

fromITupleC :: ToITupleT (One a1) -> One a1

Generic1 One

Defined in Primus.One

Associated Types

type Rep1 One :: k -> Type

Methods

from1 :: forall (a :: k). One a -> Rep1 One a

to1 :: forall (a :: k). Rep1 One a -> One a

type Rep (One a)

Defined in Primus.One

type Rep (One a) = D1 ('MetaData "One" "Primus.One" "primus-0.3.0.0-HWjmNHShjq52t4uZ5YxnWQ" 'True) (C1 ('MetaCons "One" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 a)))

type Rep1 One

Defined in Primus.One

type Rep1 One = D1 ('MetaData "One" "Primus.One" "primus-0.3.0.0-HWjmNHShjq52t4uZ5YxnWQ" 'True) (C1 ('MetaCons "One" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) Par1))

unOne :: One a -> a

unwrap One