| Safe Haskell | Safe |
|---|---|
| Language | Haskell98 |
MonadLib.Derive
Description
This module defines a number of functions that make it easy to get the functionality of MonadLib for user-defined newtypes.
- data Iso m n = Iso (forall a. m a -> n a) (forall a. n a -> m a)
- derive_fmap :: Functor m => Iso m n -> (a -> b) -> n a -> n b
- derive_pure :: Applicative m => Iso m n -> a -> n a
- derive_apply :: Applicative m => Iso m n -> n (a -> b) -> n a -> n b
- derive_empty :: Alternative m => Iso m n -> n a
- derive_or :: Alternative m => Iso m n -> n a -> n a -> n a
- derive_return :: Monad m => Iso m n -> a -> n a
- derive_bind :: Monad m => Iso m n -> n a -> (a -> n b) -> n b
- derive_fail :: Monad m => Iso m n -> String -> n a
- derive_mzero :: MonadPlus m => Iso m n -> n a
- derive_mplus :: MonadPlus m => Iso m n -> n a -> n a -> n a
- derive_mfix :: MonadFix m => Iso m n -> (a -> n a) -> n a
- derive_ask :: ReaderM m i => Iso m n -> n i
- derive_local :: RunReaderM m i => Iso m n -> i -> n a -> n a
- derive_put :: WriterM m i => Iso m n -> i -> n ()
- derive_collect :: RunWriterM m i => Iso m n -> n a -> n (a, i)
- derive_get :: StateM m i => Iso m n -> n i
- derive_set :: StateM m i => Iso m n -> i -> n ()
- derive_raise :: ExceptionM m i => Iso m n -> i -> n a
- derive_try :: RunExceptionM m i => Iso m n -> n a -> n (Either i a)
- derive_callWithCC :: ContM m => Iso m n -> ((a -> Label n) -> n a) -> n a
- derive_abort :: AbortM m i => Iso m n -> i -> n a
- derive_lift :: (MonadT t, Monad m) => Iso (t m) n -> m a -> n a
- derive_inBase :: BaseM m x => Iso m n -> x a -> n a
- derive_runM :: RunM m a r => Iso m n -> n a -> r
Documentation
An isomorphism between (usually) monads. Typically the constructor and selector of a newtype delcaration.
Constructors
| Iso (forall a. m a -> n a) (forall a. n a -> m a) |
derive_fmap :: Functor m => Iso m n -> (a -> b) -> n a -> n b #
derive_pure :: Applicative m => Iso m n -> a -> n a #
Derive the implementation of pure from Applicative.
derive_apply :: Applicative m => Iso m n -> n (a -> b) -> n a -> n b #
Derive the implementation of <*> from Applicative.
derive_empty :: Alternative m => Iso m n -> n a #
Derive the implementation of empty from Alternative.
derive_or :: Alternative m => Iso m n -> n a -> n a -> n a #
Derive the implementation of <|> from Alternative.
derive_bind :: Monad m => Iso m n -> n a -> (a -> n b) -> n b #
derive_fail :: Monad m => Iso m n -> String -> n a #
derive_mplus :: MonadPlus m => Iso m n -> n a -> n a -> n a #
derive_mfix :: MonadFix m => Iso m n -> (a -> n a) -> n a #
derive_local :: RunReaderM m i => Iso m n -> i -> n a -> n a #
Derive the implementation of local from RunReaderM.
derive_collect :: RunWriterM m i => Iso m n -> n a -> n (a, i) #
Derive the implementation of collect from RunWriterM.
derive_raise :: ExceptionM m i => Iso m n -> i -> n a #
Derive the implementation of raise from ExceptionM.
derive_try :: RunExceptionM m i => Iso m n -> n a -> n (Either i a) #
Derive the implementation of try from RunExceptionM.
derive_callWithCC :: ContM m => Iso m n -> ((a -> Label n) -> n a) -> n a #
Derive the implementation of callWithCC from ContM.
derive_abort :: AbortM m i => Iso m n -> i -> n a #
derive_lift :: (MonadT t, Monad m) => Iso (t m) n -> m a -> n a #
derive_inBase :: BaseM m x => Iso m n -> x a -> n a #