Safe Haskell | Safe |
---|---|

Language | Haskell2010 |

- type family PUnary (m :: k -> Type -> Type) (t :: k) = (r :: Type -> Type) | r -> m t
- class PPointed m id where
- class (Functor (PUnary m t), Functor (PUnary m u), Functor (PUnary m v)) => PApplicative m t u v | t u -> v where
- (&<*>) :: PApplicative m t u v => PUnary m t (a -> b) -> PUnary m u a -> PUnary m v b
- (&*>) :: PApplicative m t u v => PUnary m t a -> PUnary m u b -> PUnary m v b
- (&<*) :: PApplicative m t u v => PUnary m t a -> PUnary m u b -> PUnary m v a
- pliftA :: Functor (PUnary m t) => (a -> b) -> PUnary m t a -> PUnary m t b
- pliftA2 :: PApplicative m t u v => (a -> b -> c) -> PUnary m t a -> PUnary m u b -> PUnary m v c
- pliftA3 :: (PApplicative m t u v, PApplicative m v w x) => (a -> b -> c -> d) -> PUnary m t a -> PUnary m u b -> PUnary m w c -> PUnary m x d
- class PEmpty m id | m -> id where
- class PAlternative m t u v | t u -> v where
- (&<|>) :: PAlternative m t u v => PUnary m t a -> PUnary m u a -> PUnary m v a

# Documentation

class PPointed m id where Source #

Parameterized version of `pure`

in `Applicative`

An instance of this should create a parameterized unary type
where the parameter is an identity in respect to `papply`

NB. For `ChangingState`

,
the id `s`

"parameter" cannot be purely determined from `m`

,
so unlike `pappend`

there is not functional dependency to help type inference.
Hint: use `ppure @_ @_ `

id@ to specify the id type to avoid ambiguity.

Applicative m => PPointed * (ManyReader m) (Many ([] Type)) Source # | |

Applicative m => PPointed * (DistinctWhichReader m) (Which ([] Type)) Source # | |

Applicative m => PPointed * (OverlappingWhichReader m) (Which ([] Type)) Source # | |

Monad m => PPointed * (ManyState m) (Many ([] Type)) Source # | |

Applicative m => PPointed * (ChangingState m) (s, s) Source # | |

class (Functor (PUnary m t), Functor (PUnary m u), Functor (PUnary m v)) => PApplicative m t u v | t u -> v where Source #

Parameterized version of `ap`

in `Applicative`

NB. `PPointed`

cannot be made a superclass because type variable `id`

is not in scope.

papply :: PUnary m t (a -> b) -> PUnary m u a -> PUnary m v b infixl 4 Source #

Sequential application.

(Functor (ManyReader m (Many c)), Applicative m, Select a c, Select b c, (~) [Type] c (AppendUnique Type a b)) => PApplicative * (ManyReader m) (Many a) (Many b) (Many c) Source # | |

(Monad m, Select a c, Select b c, Amend' a c, Amend' b c, (~) [Type] c (AppendUnique Type a b)) => PApplicative * (ManyState m) (Many a) (Many b) (Many c) Source # | |

Monad m => PApplicative * (ChangingState m) (s, t) (t, u) (s, u) Source # | |

(&<*>) :: PApplicative m t u v => PUnary m t (a -> b) -> PUnary m u a -> PUnary m v b infixl 4 Source #

Sequential application.

(&*>) :: PApplicative m t u v => PUnary m t a -> PUnary m u b -> PUnary m v b infixl 4 Source #

Sequence actions, discarding the value of the first argument.

(&<*) :: PApplicative m t u v => PUnary m t a -> PUnary m u b -> PUnary m v a infixl 4 Source #

Sequence actions, discarding the value of the second argument.

pliftA :: Functor (PUnary m t) => (a -> b) -> PUnary m t a -> PUnary m t b Source #

Lift a function to actions.

pliftA2 :: PApplicative m t u v => (a -> b -> c) -> PUnary m t a -> PUnary m u b -> PUnary m v c Source #

Lift a binary function to actions.

pliftA3 :: (PApplicative m t u v, PApplicative m v w x) => (a -> b -> c -> d) -> PUnary m t a -> PUnary m u b -> PUnary m w c -> PUnary m x d Source #

Lift a ternary function to actions.

class PEmpty m id | m -> id where Source #

Parameterized version of empty in `Alternative`

.
An instance of this should create a parameterized unary type
where the parameter is an identity in respect to `pappend`

Alternative m => PEmpty * (ManyReader m) (Many ([] Type)) Source # | |

Alternative m => PEmpty * (DistinctWhichReader m) (Which ([] Type)) Source # | |

Alternative m => PEmpty * (OverlappingWhichReader m) (Which ([] Type)) Source # | |

Alternative m => PEmpty * (ManyState m) (Many ([] Type)) Source # | |

class PAlternative m t u v | t u -> v where Source #

Parameterized version of `Alternative`

NB. `PEmpty`

cannot be made a superclass because type variable `id`

will be ambiguous.
NB. PAlternative doensn't require `PApplicative`

as a superclass, because
Some things can be made instances of `PAlternative`

but not `PApplicative`

.

pappend :: PUnary m t a -> PUnary m u a -> PUnary m v a infixl 3 Source #

An associative binary operation

(Alternative m, Select a c, Select b c, (~) [Type] c (AppendUnique Type a b)) => PAlternative * (ManyReader m) (Many a) (Many b) (Many c) Source # | |

(Reinterpret b c, (~) [Type] (Complement Type c b) a, (~) [Type] (Complement Type c a) b, (~) [Type] c (Append Type a b)) => PAlternative * (DistinctWhichReader m) (Which a) (Which b) (Which c) Source # | |

(Alternative m, Reinterpret b c, Reinterpret a c, (~) [Type] c (AppendUnique Type a b)) => PAlternative * (OverlappingWhichReader m) (Which a) (Which b) (Which c) Source # | |

(Monad m, Alternative m, Select a c, Select b c, Amend' a c, Amend' b c, (~) [Type] c (AppendUnique Type a b)) => PAlternative * (ManyState m) (Many a) (Many b) (Many c) Source # | |