Pandora.Pattern.Functor.Comonad

Documentation

class (Extractable t, Extendable t) => Comonad t

Let f :: (Pointable t, Bindable t) => t a -> b
Let g :: (Pointable t, Bindable t) => t a -> b

When providing a new instance, you should ensure it satisfies the three laws:
* Left identity: extend extract ≡ identity
* Right identity: extract . extend f ≡ f
* Associativity: extend f . extend g ≡ extend (f . extend g)

Instances

Comonad Identity

Defined in Pandora.Paradigm.Primary.Functor.Identity

Comonad (Product s)

Defined in Pandora.Paradigm.Primary.Functor.Product

Covariant t => Comonad (Construction t)

Defined in Pandora.Paradigm.Primary.Transformer.Construction

Comonad (Equipment e)

Defined in Pandora.Paradigm.Inventory.Equipment

Comonad (Store p)

Defined in Pandora.Paradigm.Inventory.Store

Comonad (Tagged tag)

Defined in Pandora.Paradigm.Primary.Functor.Tagged

(Extractable (t :< u), Extendable (t :< u)) => Comonad (t :< u)

Defined in Pandora.Paradigm.Controlflow.Effect.Transformer.Comonadic

type Schematic Comonad (Imprint e)

Defined in Pandora.Paradigm.Inventory.Imprint

type Schematic Comonad (Imprint e) = (<.:>) ((->) e :: Type -> Type)

type Schematic Comonad (Equipment e)

Defined in Pandora.Paradigm.Inventory.Equipment

type Schematic Comonad (Equipment e) = (<:.>) ((:*:) e)

type Schematic Comonad (Store p)

Defined in Pandora.Paradigm.Inventory.Store

type Schematic Comonad (Store p) = (:*:) p <:<.>:> ((->) p :: Type -> Type)