free-category: Free category

[ algebra, category, control, library, monads, mpl ] [ Propose Tags ]

Free categories


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Versions [faq] 0.0.1.0, 0.0.2.0
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 Sat Jan 26 10:12:57 UTC 2019
Distributions NixOS:0.0.2.0
Downloads 173 total (53 in the last 30 days)
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Status Hackage Matrix CI
Docs available [build log]
Last success reported on 2019-01-26 [all 1 reports]

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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