Maintainer | Brandon Chinn <brandon@leapyear.io> |
---|---|
Stability | experimental |
Portability | portable |
Safe Haskell | Safe-Inferred |
Language | Haskell2010 |
Imports needed for the generated API.
Documentation
A space efficient, packed, unboxed Unicode text type.
Instances
mkEnum :: String -> [String] -> Q [Dec] #
Make an enum type with the given constructors, that can be parsed from JSON.
The FromJSON
instance will match to a string value matching the constructor name,
case-insensitive.
mkEnum "State" ["OPEN", "CLOSED"] -- generates equivalent of: -- data State = OPEN | CLOSED deriving (...) -- genFromJSONEnum ''State -- genToJSONEnum ''State
class Monad m => MonadIO (m :: Type -> Type) #
Monads in which IO
computations may be embedded.
Any monad built by applying a sequence of monad transformers to the
IO
monad will be an instance of this class.
Instances should satisfy the following laws, which state that liftIO
is a transformer of monads: