Safe Haskell	Safe-Inferred
Language	Haskell2010

Control.Carrier.Cull.Church

Contents

Cull carrier
Cull effect
NonDet effects

Description

A carrier for Cull and NonDet effects used in tandem (Cull :+: NonDet).

Since: 1.0.0.0

Synopsis

runCull :: (m b -> m b -> m b) -> (a -> m b) -> m b -> CullC m a -> m b
runCullA :: (Alternative f, Applicative m) => CullC m a -> m (f a)
runCullM :: (Applicative m, Monoid b) => (a -> b) -> CullC m a -> m b
newtype CullC m a = CullC (ReaderC Bool (NonDetC m) a)
module Control.Effect.Cull
module Control.Effect.NonDet

Cull carrier

runCull :: (m b -> m b -> m b) -> (a -> m b) -> m b -> CullC m a -> m b Source #

Run a Cull effect with continuations respectively interpreting <|>, pure, and empty. Branches outside of any cull block will not be pruned.

runCull fork leaf nil (pure a <|> empty) = leaf a `fork` nil

runCull fork leaf nil (cull (pure a <|> b)) = leaf a

Since: 1.0.0.0

runCullA :: (Alternative f, Applicative m) => CullC m a -> m (f a) Source #

Run a Cull effect, interpreting the result into an Alternative functor. Choice is handled with <|>, embedding with pure, and failure with empty.

Since: 1.0.0.0

runCullM :: (Applicative m, Monoid b) => (a -> b) -> CullC m a -> m b Source #

Run a Cull effect, mapping results into a Monoid.

Since: 1.0.0.0

newtype CullC m a Source #

Since: 1.0.0.0

Constructors

CullC (ReaderC Bool (NonDetC m) a)

Instances

Instances details

MonadTrans CullC Source #
Instance details Defined in Control.Carrier.Cull.Church Methods lift :: Monad m => m a -> CullC m a #
MonadFail m => MonadFail (CullC m) Source #
Instance details Defined in Control.Carrier.Cull.Church Methods fail :: String -> CullC m a #
MonadFix m => MonadFix (CullC m) Source #	Separate fixpoints are computed for each branch.
Instance details Defined in Control.Carrier.Cull.Church Methods mfix :: (a -> CullC m a) -> CullC m a #
MonadIO m => MonadIO (CullC m) Source #
Instance details Defined in Control.Carrier.Cull.Church Methods liftIO :: IO a -> CullC m a #
Alternative (CullC m) Source #
Instance details Defined in Control.Carrier.Cull.Church Methods empty :: CullC m a # (<\|>) :: CullC m a -> CullC m a -> CullC m a # some :: CullC m a -> CullC m [a] # many :: CullC m a -> CullC m [a] #
Applicative (CullC m) Source #
Instance details Defined in Control.Carrier.Cull.Church Methods pure :: a -> CullC m a # (<>) :: CullC m (a -> b) -> CullC m a -> CullC m b # liftA2 :: (a -> b -> c) -> CullC m a -> CullC m b -> CullC m c # (>) :: CullC m a -> CullC m b -> CullC m b # (<*) :: CullC m a -> CullC m b -> CullC m a #
Functor (CullC m) Source #
Instance details Defined in Control.Carrier.Cull.Church Methods fmap :: (a -> b) -> CullC m a -> CullC m b # (<$) :: a -> CullC m b -> CullC m a #
Monad (CullC m) Source #
Instance details Defined in Control.Carrier.Cull.Church Methods (>>=) :: CullC m a -> (a -> CullC m b) -> CullC m b # (>>) :: CullC m a -> CullC m b -> CullC m b # return :: a -> CullC m a #
MonadPlus (CullC m) Source #
Instance details Defined in Control.Carrier.Cull.Church Methods mzero :: CullC m a # mplus :: CullC m a -> CullC m a -> CullC m a #
Algebra sig m => Algebra (Cull :+: (NonDet :+: sig)) (CullC m) Source #
Instance details Defined in Control.Carrier.Cull.Church Methods alg :: forall ctx (n :: Type -> Type) a. Functor ctx => Handler ctx n (CullC m) -> (Cull :+: (NonDet :+: sig)) n a -> ctx () -> CullC m (ctx a) Source #

Cull effect

module Control.Effect.Cull

NonDet effects

module Control.Effect.NonDet