algebraic-classes: Conversions between algebraic classes and F-algebras.
Algebraic classes are type classes where all the methods return a value of the same type, which is also the class parameter.
Examples from base are Num and Monoid.
F-algebras are functions f a -> a, where the functor f is called the signature, and the type a the carrier.
This package relates these 2 concepts, and can create conversions between the two using Template Haskell. More specifically, it can generate:
signatures from algebraic classes
instances of algebraic classes from F-algebras.
This is useful because type classes are more commonly used in Haskell than F-algebras, but F-algebras are easier to work with, because they are just functions.
Downloads
- algebraic-classes-0.10.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
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For package maintainers and hackage trustees
Candidates
| Versions [RSS] | 0, 0.1, 0.2, 0.2.1, 0.3, 0.3.1, 0.3.2, 0.4, 0.5, 0.5.1, 0.5.2, 0.6, 0.7, 0.7.1, 0.8, 0.9, 0.9.1, 0.9.2, 0.9.3, 0.9.4, 0.10 |
|---|---|
| Change log | CHANGELOG |
| Dependencies | base (>=4.18 && <4.23), syb (>=0.7 && <0.8), template-haskell (>=2.20 && <2.25) [details] |
| Tested with | ghc ==9.6.7, ghc ==9.8.4, ghc ==9.10.3, ghc ==9.12.2, ghc ==9.14.1 |
| License | BSD-3-Clause |
| Author | Sjoerd Visscher |
| Maintainer | [email protected] |
| Category | Data, Generics, Math |
| Home page | https://github.com/sjoerdvisscher/algebraic-classes |
| Bug tracker | https://github.com/sjoerdvisscher/algebraic-classes/issues |
| Source repo | head: git clone https://github.com/sjoerdvisscher/algebraic-classes |
| Uploaded | by SjoerdVisscher at 2026-01-05T17:25:11Z |
| Distributions | |
| Reverse Dependencies | 2 direct, 0 indirect [details] |
| Downloads | 15783 total (95 in the last 30 days) |
| Rating | (no votes yet) [estimated by Bayesian average] |
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| Status | Docs available [build log] Last success reported on 2026-01-05 [all 1 reports] |