union

Extensible type-safe unions

Version on this page:0.1.1.1
LTS Haskell 23.23:0.1.2@rev:9
Stackage Nightly 2025-05-24:0.1.3
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-0.1.1.1@sha256:d622d02000ede8bd5d88a94e2889aafefd1beff2cc50c5452cd47b40e17ab033,1992

Module documentation for 0.1.1.1

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).