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free-category: Free category

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Free categories

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Versions 0.0.1.0, 0.0.2.0, 0.0.2.0, 0.0.3.0, 0.0.4.0, 0.0.4.1, 0.0.4.2, 0.0.4.3, 0.0.4.4, 0.0.4.5
Change log ChangeLog.md
Dependencies base (>=4.9 && <5), free-algebras (>=0.0.7.0) [details]
License MPL-2.0
Copyright (c) 2018 Marcin Szamotulski
Author Marcin Szamotulski
Maintainer profunctor@pm.me
Category Algebra, Control, Monads, Category
Home page https://github.com/coot/free-category#readme
Bug tracker https://github.com/coot/free-category/issues
Source repo head: git clone https://github.com/coot/free-category
Uploaded by coot at 2019-01-26T10:04:45Z

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Readme for free-category-0.0.2.0

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Free Category

Maintainer: coot CircleCI

This package introduces variouos presentations of free categories in Haskell.

Free categories are useful to model state machines in a simple yet type safe way and for that purpose Kleisli categroies are a very useful target which allows to include monadic computations. This packge contains a useful generalisation of Kliesli categories captured by EffCategory class (effectful categories), and a (free) transformer which lifts a category to an effectful one.

Some examples