The free package

[Tags:bsd3, library]

Free monads are useful for many tree-like structures and domain specific languages.

A Monad n is a free Monad for f if every Monad homomorphism from n to another monad m is equivalent to a natural transformation from f to m.

Cofree comonads provide convenient ways to talk about branching streams and rose-trees, and can be used to annotate syntax trees.

A Comonad v is a cofree Comonad for f if every Comonad homomorphism another comonad w to v is equivalent to a natural transformation from w to f.

Properties

Versions 0.1.0, 0.1.1, 0.2.0, 0.2.1, 0.2.2, 0.2.3, 1.8.0, 1.8.0.1, 1.8.0.3, 1.8.0.4, 2.0, 2.0.1, 2.0.1.1, 2.0.2, 2.0.3, 2.1, 2.1.1, 2.1.1.1, 2.2, 3.0, 3.1, 3.1.1, 3.2, 3.3, 3.3.0.1, 3.3.0.2, 3.3.1, 3.4, 3.4.1, 3.4.2, 4.0, 4.1, 4.2, 4.4, 4.5, 4.6, 4.6.1, 4.7, 4.7.1, 4.8, 4.8.0.1, 4.9, 4.10.0.1, 4.11, 4.12, 4.12.1, 4.12.2, 4.12.3, 4.12.4
Dependencies base (>=4 && <4.7), bifunctors (==3.0.*), comonad (==3.0.*), comonad-transformers (==3.0.*), comonads-fd (==3.0.*), distributive (>=0.2.1 && <0.4), mtl (>=2.0.1.0 && <2.2), semigroupoids (==3.0.*), semigroups (>=0.8.3.1 && <0.9), transformers (>=0.2.0 && <0.4) [details]
License BSD3
Copyright Copyright (C) 2008-2012 Edward A. Kmett
Author Edward A. Kmett
Maintainer Edward A. Kmett <ekmett@gmail.com>
Stability provisional
Category Control, Monads
Home page http://github.com/ekmett/free/
Bug tracker http://github.com/ekmett/free/issues
Source repository head: git clone git://github.com/ekmett/free.git
Uploaded Sun Jan 6 17:35:45 UTC 2013 by EdwardKmett
Updated Tue May 12 18:14:33 UTC 2015 by AdamBergmark to revision 1
Distributions Arch:4.12.4, Debian:4.12.1, FreeBSD:4.12.1, LTSHaskell:4.12.4, NixOS:4.12.4, Stackage:4.12.4, Tumbleweed:4.12.4
Downloads 101300 total (144 in the last 30 days)
Votes
2 []
Status Docs uploaded by user
Build status unknown [no reports yet]

Modules

[Index]

Downloads

Maintainer's Corner

For package maintainers and hackage trustees