FICHA · MANJARO

haskell-contravariant

Contravariant functors

  • haskell-library
  • LIBRARY
  • FUNCTIONAL-PROGRAMMING
  • TYPECLASSES
  • Dependency only
official+codex · reviewed · May 28, 2026 description in en

Description

A Haskell library for contravariant functors. These abstractions are useful for consumers of values, such as predicates, comparators, encoders, and printers, where mapping direction is reversed.

Developers use it in generic functional code and many higher-level libraries. Most users receive it indirectly because another Haskell package depends on it.

Permissions

Permissions not analysed for this source yet.