https://github.com/well-typed/generics-sop

Generic Programming using True Sums of Products
https://github.com/well-typed/generics-sop

generic-programming haskell types

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Generic Programming using True Sums of Products

• Host: GitHub
• URL: https://github.com/well-typed/generics-sop
• Owner: well-typed
• License: bsd-3-clause
• Created: 2014-06-27T20:58:23.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2024-05-13T17:09:49.000Z (8 months ago)
• Last Synced: 2024-08-03T15:06:20.289Z (5 months ago)
• Topics: generic-programming, haskell, types
• Language: Haskell
• Homepage:
• Size: 672 KB
• Stars: 156
• Watchers: 14
• Forks: 48
• Open Issues: 38
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
## sop-core and generics-sop

[![Build Status](https://github.com/well-typed/generics-sop/actions/workflows/haskell-ci.yml/badge.svg)](https://github.com/well-typed/generics-sop/actions/workflows/haskell-ci.yml)

[![Hackage](https://img.shields.io/hackage/v/generics-sop.svg)](https://hackage.haskell.org/package/generics-sop)

`generics-sop` is a library to support the definition of generic functions.

Datatypes are viewed in a uniform, structured way: the choice between

constructors is represented using an n-ary sum, and the arguments of each

constructor are represented using an n-ary product.

Since version 0.4.0.0, `generics-sop` is now based on `sop-core`. The core

package contains all the functionality of n-ary sums and products, whereas

`generics-sop` provides the datatype-generic programming support on top.

This is the development repository for the packages. For releases, look on

[Hackage][0].

 

The module [`Generics.SOP`][1] is the main module of this library

and contains more detailed documentation.

 

Examples of using `generics-sop` are provided by the following

packages:

 

  * [basic-sop][2] basic examples,

  * [pretty-sop][3] generic pretty printing,

  * [lens-sop][4] generically computed lenses,

  * [json-sop][5] generic JSON conversions.

 

A detailed description of the ideas behind this library is provided by

the paper:

 

  * Edsko de Vries and Andres Löh.

    [True Sums of Products][6].

    Workshop on Generic Programming (WGP) 2014.

 

[0]: https://hackage.haskell.org/package/generics-sop

[1]: https://hackage.haskell.org/package/generics-sop/docs/Generics-SOP.html

[2]: https://github.com/well-typed/basic-sop

[3]: https://github.com/well-typed/pretty-sop

[4]: https://github.com/well-typed/lens-sop

[5]: https://github.com/well-typed/json-sop

[6]: http://www.andres-loeh.de/TrueSumsOfProducts