Safe Haskell	Safe
Language	Haskell98

UniqueLogic.ST.TF.MonadTrans

Synopsis

class MonadTrans t => C t where
newtype Wrap t m a = Wrap (Const (t m a) (m a))
wrap :: t m a -> Wrap t m a
unwrap :: Wrap t m a -> t m a
lift :: (C t, Monad m) => m a -> Wrap t m a

Documentation

class MonadTrans t => C t where Source #

Provide the methods that make a transformed monad a monad.

Minimal complete definition

point, bind

Methods

point :: Monad m => a -> t m a Source #

bind :: Monad m => t m a -> (a -> t m b) -> t m b Source #

Instances

C MaybeT Source #
Instance details Defined in UniqueLogic.ST.TF.MonadTrans Methods point :: Monad m => a -> MaybeT m a Source # bind :: Monad m => MaybeT m a -> (a -> MaybeT m b) -> MaybeT m b Source #
C Track Source #
Instance details Defined in UniqueLogic.ST.TF.Example.Verify Methods point :: Monad m => a -> Track m a Source # bind :: Monad m => Track m a -> (a -> Track m b) -> Track m b Source #
Monoid w => C (WriterT w) Source #
Instance details Defined in UniqueLogic.ST.TF.MonadTrans Methods point :: Monad m => a -> WriterT w m a Source # bind :: Monad m => WriterT w m a -> (a -> WriterT w m b) -> WriterT w m b Source #
C (IdentityT :: (* -> ) -> -> *) Source #
Instance details Defined in UniqueLogic.ST.TF.MonadTrans Methods point :: Monad m => a -> IdentityT m a Source # bind :: Monad m => IdentityT m a -> (a -> IdentityT m b) -> IdentityT m b Source #
C (ExceptT e) Source #
Instance details Defined in UniqueLogic.ST.TF.MonadTrans Methods point :: Monad m => a -> ExceptT e m a Source # bind :: Monad m => ExceptT e m a -> (a -> ExceptT e m b) -> ExceptT e m b Source #

newtype Wrap t m a Source #

Build a regular monad for generic monad transformer and monad. The Const type allows us to force the kind (m :: * -> *) without using ExplicitKindSignatures.

Constructors

Wrap (Const (t m a) (m a))

Instances

(C t, Monad m) => Monad (Wrap t m) Source #
Instance details Defined in UniqueLogic.ST.TF.MonadTrans Methods (>>=) :: Wrap t m a -> (a -> Wrap t m b) -> Wrap t m b # (>>) :: Wrap t m a -> Wrap t m b -> Wrap t m b # return :: a -> Wrap t m a # fail :: String -> Wrap t m a #
(C t, Monad m) => Functor (Wrap t m) Source #
Instance details Defined in UniqueLogic.ST.TF.MonadTrans Methods fmap :: (a -> b) -> Wrap t m a -> Wrap t m b # (<$) :: a -> Wrap t m b -> Wrap t m a #
(C t, Monad m) => Applicative (Wrap t m) Source #
Instance details Defined in UniqueLogic.ST.TF.MonadTrans Methods pure :: a -> Wrap t m a # (<>) :: Wrap t m (a -> b) -> Wrap t m a -> Wrap t m b # liftA2 :: (a -> b -> c) -> Wrap t m a -> Wrap t m b -> Wrap t m c # (>) :: Wrap t m a -> Wrap t m b -> Wrap t m b # (<*) :: Wrap t m a -> Wrap t m b -> Wrap t m a #

wrap :: t m a -> Wrap t m a Source #

unwrap :: Wrap t m a -> t m a Source #

lift :: (C t, Monad m) => m a -> Wrap t m a Source #