Language.Haskell.Liquid.Types.Variance

Documentation

data Variance

Constructors

Invariant

Bivariant

Contravariant

Covariant

Instances

Data Variance

Defined in Language.Haskell.Liquid.Types.Variance

Methods

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

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

toConstr :: Variance -> Constr

dataTypeOf :: Variance -> DataType

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

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

gmapT :: (forall b. Data b => b -> b) -> Variance -> Variance

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

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

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

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

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

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

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

Monoid Variance

Defined in Language.Haskell.Liquid.Types.Variance

Methods

mempty :: Variance

mappend :: Variance -> Variance -> Variance

mconcat :: [Variance] -> Variance

Semigroup Variance

Defined in Language.Haskell.Liquid.Types.Variance

Methods

(<>) :: Variance -> Variance -> Variance

sconcat :: NonEmpty Variance -> Variance

stimes :: Integral b => b -> Variance -> Variance

Generic Variance

Defined in Language.Haskell.Liquid.Types.Variance

Associated Types

type Rep Variance :: Type -> Type

Methods

from :: Variance -> Rep Variance x

to :: Rep Variance x -> Variance

Show Variance

Defined in Language.Haskell.Liquid.Types.Variance

Methods

showsPrec :: Int -> Variance -> ShowS

show :: Variance -> String

showList :: [Variance] -> ShowS

Binary Variance

Defined in Language.Haskell.Liquid.Types.Variance

Methods

put :: Variance -> Put

get :: Get Variance

putList :: [Variance] -> Put

NFData Variance

Defined in Language.Haskell.Liquid.Types.Variance

Methods

rnf :: Variance -> ()

Eq Variance

Defined in Language.Haskell.Liquid.Types.Variance

Methods

(==) :: Variance -> Variance -> Bool

(/=) :: Variance -> Variance -> Bool

Hashable Variance

Defined in Language.Haskell.Liquid.Types.Variance

Methods

hashWithSalt :: Int -> Variance -> Int

hash :: Variance -> Int

PPrint Variance

Defined in Language.Haskell.Liquid.Types.Variance

Methods

pprintTidy :: Tidy -> Variance -> Doc

pprintPrec :: Int -> Tidy -> Variance -> Doc

type Rep Variance

Defined in Language.Haskell.Liquid.Types.Variance

type Rep Variance = D1 ('MetaData "Variance" "Language.Haskell.Liquid.Types.Variance" "liquidhaskell-boot-0.9.2.5.0-JuBNLAGIRFD6ItsPyAO3oF" 'False) ((C1 ('MetaCons "Invariant" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "Bivariant" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "Contravariant" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "Covariant" 'PrefixI 'False) (U1 :: Type -> Type)))

type VarianceInfo = [Variance]

makeTyConVariance :: TyCon -> VarianceInfo

flipVariance :: Variance -> Variance