union

Extensible type-safe unions

Version on this page:0.1.0.0@rev:1
LTS Haskell 24.2:0.1.3
Stackage Nightly 2025-07-28:0.1.3
Latest on Hackage:0.1.3

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BSD-3-Clause licensed by Index Int
Maintained by Index Int
This version can be pinned in stack with:union-0.1.0.0@sha256:b727e5c9325d1672d30a1da433ddd1314775d7b50d2148713f419e524444ed79,1841

Module documentation for 0.1.0.0

Depends on 3 packages(full list with versions):
base, lens, vinyl

Extensible type-safe unions for Haskell with prisms using modern GHC features. Dual to vinyl records. Unions are also known as corecords or polymorphic variants. Neither requires a Typeable constraint nor uses unsafe coercions at the cost of a performance hit.