union

Extensible type-safe unions

LTS Haskell 24.60:0.1.3.2
Stackage Nightly 2026-09-29:0.1.3.2@rev:1
Latest on Hackage:0.1.3.2@rev:1

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BSD-3-Clause licensed by Vladislav Zavialov
Maintained by Vladislav Zavialov
This version can be pinned in stack with:union-0.1.3.2@sha256:b8f69e92709c1e108a70efb9ba4d36f2164c4d3647fe03f98301631bec3a14f1,1780

Module documentation for 0.1.3.2

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 linear time access (negligible in practice).