Options.Harg.Sources.Env

Documentation

data EnvSource (f :: Type -> Type)

Source that enables a parser to read options from environment variables.

Constructors

EnvSource

Instances

GetSource EnvSource f

Defined in Options.Harg.Sources.Env

Associated Types

type SourceVal EnvSource

Methods

getSource :: HargCtx -> EnvSource f -> IO (SourceVal EnvSource)

Generic (EnvSource f)

Defined in Options.Harg.Sources.Env

Associated Types

type Rep (EnvSource f) :: Type -> Type

Methods

from :: EnvSource f -> Rep (EnvSource f) x

to :: Rep (EnvSource f) x -> EnvSource f

ApplicativeB EnvSource

Defined in Options.Harg.Sources.Env

Methods

bpure :: (forall (a :: k). f a) -> EnvSource f

bprod :: forall (f :: k -> Type) (g :: k -> Type). EnvSource f -> EnvSource g -> EnvSource (Product f g)

FunctorB EnvSource

Defined in Options.Harg.Sources.Env

Methods

bmap :: (forall (a :: k). f a -> g a) -> EnvSource f -> EnvSource g

TraversableB EnvSource

Defined in Options.Harg.Sources.Env

Methods

btraverse :: Applicative e => (forall (a :: k). f a -> e (g a)) -> EnvSource f -> e (EnvSource g)

type SourceVal EnvSource

Defined in Options.Harg.Sources.Env

type SourceVal EnvSource = EnvSourceVal

type Rep (EnvSource f)

Defined in Options.Harg.Sources.Env

type Rep (EnvSource f) = D1 ('MetaData "EnvSource" "Options.Harg.Sources.Env" "harg-0.5.0.0-inplace" 'False) (C1 ('MetaCons "EnvSource" 'PrefixI 'False) (U1 :: Type -> Type))

newtype EnvSourceVal

Value of EnvSource, which is an association list between environment variable names and values (strings).

Constructors

EnvSourceVal Environment

Instances

(FunctorB a, TraversableB a) => RunSource EnvSourceVal a

Defined in Options.Harg.Sources.Env

Methods

runSource :: forall (f :: Type -> Type). Applicative f => EnvSourceVal -> a (Compose Opt f) -> [Either SourceRunError (a (Compose SourceRunResult f))]