dependent-sum

Dependent sum type

https://github.com/mokus0/dependent-sum

Version on this page:0.3.2.2
LTS Haskell 24.18:0.7.2.0@rev:2
Stackage Nightly 2025-11-04:0.7.2.0@rev:2
Latest on Hackage:0.7.2.0@rev:2

See all snapshots dependent-sum appears in

LicenseRef-PublicDomain licensed and maintained by James Cook
This version can be pinned in stack with:dependent-sum-0.3.2.2@sha256:6cf666336c278581b0c6a810b01a12aa4214989cf6910705848010a244585b36,1911

Module documentation for 0.3.2.2

Depends on 1 package(full list with versions):
base
Used by 2 packages in nightly-2016-06-09(full list with versions):
dependent-map, dependent-sum-template

A dependent sum is a generalization of a particular way of thinking about the Either type. Either a b can be thought of as a 2-tuple (tag, value), where the value of the tag determines the type of the value. In particular, either tag = Left and value :: a or tag = Right and value :: b.

This package allows you to define your own dependent sum types by using your own "tag" types.