compdata-param-0.9.2: Parametric Compositional Data Types

Copyright(c) 2010-2011 Patrick Bahr Tom Hvitved
LicenseBSD3
MaintainerTom Hvitved <hvitved@diku.dk>
Stabilityexperimental
Portabilitynon-portable (GHC Extensions)
Safe HaskellNone
LanguageHaskell98

Data.Comp.Param.Annotation

Description

This module defines annotations on signatures.

Synopsis

Documentation

data (f :&: p) a b infixr 7 Source #

This data type adds a constant product to a signature.

Constructors

(f a b) :&: p infixr 7 
Instances
DistAnn f p (f :&: p) Source # 
Instance details

Defined in Data.Comp.Param.Ops

Methods

injectA :: p -> f a b -> (f :&: p) a b Source #

projectA :: (f :&: p) a b -> (f a b, p) Source #

Difunctor f => Difunctor (f :&: p) Source # 
Instance details

Defined in Data.Comp.Param.Ops

Methods

dimap :: (a -> b) -> (c -> d) -> (f :&: p) b c -> (f :&: p) a d Source #

Ditraversable f => Ditraversable (f :&: p) Source # 
Instance details

Defined in Data.Comp.Param.Ops

Methods

dimapM :: Monad m => (b -> m c) -> (f :&: p) a b -> m ((f :&: p) a c) Source #

disequence :: Monad m => (f :&: p) a (m b) -> m ((f :&: p) a b) Source #

(ShowD f, Show p) => ShowD (f :&: p) Source # 
Instance details

Defined in Data.Comp.Param.Show

Methods

showD :: (f :&: p) Name (FreshM String) -> FreshM String Source #

RemA (f :&: p) f Source # 
Instance details

Defined in Data.Comp.Param.Ops

Methods

remA :: (f :&: p) a b -> f a b Source #

DistAnn s p s' => DistAnn (f :+: s) p ((f :&: p) :+: s') Source # 
Instance details

Defined in Data.Comp.Param.Ops

Methods

injectA :: p -> (f :+: s) a b -> ((f :&: p) :+: s') a b Source #

projectA :: ((f :&: p) :+: s') a b -> ((f :+: s) a b, p) Source #

RemA s s' => RemA ((f :&: p) :+: s) (f :+: s') Source # 
Instance details

Defined in Data.Comp.Param.Ops

Methods

remA :: ((f :&: p) :+: s) a b -> (f :+: s') a b Source #

data (f :*: g) a b infixr 8 Source #

Formal product of signatures (difunctors).

Constructors

(f a b) :*: (g a b) infixr 8 

class DistAnn s p s' | s' -> s, s' -> p where Source #

This class defines how to distribute an annotation over a sum of signatures.

Minimal complete definition

injectA, projectA

Methods

injectA :: p -> s a b -> s' a b Source #

Inject an annotation over a signature.

projectA :: s' a b -> (s a b, p) Source #

Project an annotation from a signature.

Instances
DistAnn f p (f :&: p) Source # 
Instance details

Defined in Data.Comp.Param.Ops

Methods

injectA :: p -> f a b -> (f :&: p) a b Source #

projectA :: (f :&: p) a b -> (f a b, p) Source #

DistAnn s p s' => DistAnn (f :+: s) p ((f :&: p) :+: s') Source # 
Instance details

Defined in Data.Comp.Param.Ops

Methods

injectA :: p -> (f :+: s) a b -> ((f :&: p) :+: s') a b Source #

projectA :: ((f :&: p) :+: s') a b -> ((f :+: s) a b, p) Source #

class RemA s s' | s -> s' where Source #

Minimal complete definition

remA

Methods

remA :: s a b -> s' a b Source #

Remove annotations from a signature.

Instances
RemA (f :&: p) f Source # 
Instance details

Defined in Data.Comp.Param.Ops

Methods

remA :: (f :&: p) a b -> f a b Source #

RemA s s' => RemA ((f :&: p) :+: s) (f :+: s') Source # 
Instance details

Defined in Data.Comp.Param.Ops

Methods

remA :: ((f :&: p) :+: s) a b -> (f :+: s') a b Source #

liftA :: RemA s s' => (s' a b -> t) -> s a b -> t Source #

Transform a function with a domain constructed from a functor to a function with a domain constructed with the same functor, but with an additional annotation.

liftA' :: (DistAnn s' p s, Difunctor s') => (s' a b -> Cxt h s' c d) -> s a b -> Cxt h s c d Source #

Transform a function with a domain constructed from a functor to a function with a domain constructed with the same functor, but with an additional annotation.

stripA :: (RemA g f, Difunctor g) => CxtFun g f Source #

Strip the annotations from a term over a functor with annotations.

propAnn :: (DistAnn f p f', DistAnn g p g', Difunctor g) => Hom f g -> Hom f' g' Source #

Lift a term homomorphism over signatures f and g to a term homomorphism over the same signatures, but extended with annotations.

propAnnM :: (DistAnn f p f', DistAnn g p g', Difunctor g, Monad m) => HomM m f g -> HomM m f' g' Source #

Lift a monadic term homomorphism over signatures f and g to a monadic term homomorphism over the same signatures, but extended with annotations.

ann :: (DistAnn f p g, Difunctor f) => p -> CxtFun f g Source #

Annotate each node of a term with a constant value.

project' :: (RemA f f', s :<: f') => Cxt h f a b -> Maybe (s a (Cxt h f a b)) Source #

This function is similar to project but applies to signatures with an annotation which is then ignored.