coot/free-category
1
1
Fork 0
mirror of https://github.com/coot/free-category.git synced 2024-11-29 23:07:40 +03:00
Code Issues Projects Releases Wiki Activity
Free categories, free arrows and free categories with monadic actions
69 Commits 2 Branches 8 Tags 1 MiB
Haskell 100%
46b5016d2e
Go to file
Marcin Szamotulski 46b5016d2e Rename foldQ as foldNatQ 
To resamble `foldMap` from the `Foldable` type class.
2019-09-02 20:29:14 +00:00
.circleci Efficient representation of a free category (#5) 2019-08-31 08:12:21 +00:00
bench Just commit texts raports 2019-09-01 14:20:33 +02:00
examples Stylistic changes 2019-08-24 10:28:08 +02:00
nix Efficient representation of a free category (#5) 2019-08-31 08:12:21 +00:00
src/Control Rename foldQ as foldNatQ 2019-09-02 20:29:14 +00:00
.travis.yml Efficient representation of a free category (#5) 2019-08-31 08:12:21 +00:00
cabal.project Lifting (#2) 2018-12-10 19:59:39 +01:00
ChangeLog.md hoistOp - Op is an endo-functor of category of categories 2019-09-01 12:09:39 +00:00
default.nix Efficient representation of a free category (#5) 2019-08-31 08:12:21 +00:00
free-category.cabal Bump version: v0.0.4.0 2019-09-01 14:41:15 +02:00
LICENSE Initial commit 2018-08-26 19:12:12 +02:00
README.md Bump version: v0.0.4.0 2019-09-01 14:41:15 +02:00
shell.nix Efficient representation of a free category (#5) 2019-08-31 08:12:21 +00:00

README.md

Free Category

Maintainer: coot CircleCI

This package contains efficient free categories. There are two presentations:

  • using realtime queues (C. Okasaki 'Pure Functional Data Structures')
  • using continuation passing style

Free arrows and free Kleisli categories are also included.

Free categories are useful to model state machines in a simple yet type safe manner. 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.

Benchmarks

Check performence characteristics of various presentations free categories:

Some examples