mtl-unleashed: MTL classes without the functional dependency

[ bsd3, control, library ] [ Propose Tags ]

Classes MonadState and MonadReader without the functional dependency from the monad to the contained type. This allows more flexibility to extract bits and pieces of state based on type, but increases ambiguities that need to be resolved with extra type signatures.

Versions [faq] 0.2, 0.2.1, 0.2.2, 0.3, 0.3.1, 0.3.2, 0.5, 0.6, 0.6.1
Dependencies base (<5), contravariant, lens, mtl, profunctors [details]
License BSD-3-Clause
Copyright (c) 2015 David Fox
Author David Fox
Maintainer David Fox <>
Category Control
Home page
Bug tracker
Source repo head: git clone git://
Uploaded by DavidFox at Thu Aug 6 23:08:46 UTC 2015
Distributions NixOS:0.6.1
Downloads 4005 total (346 in the last 30 days)
Rating (no votes yet) [estimated by Bayesian average]
Your Rating
  • λ
  • λ
  • λ
Status Hackage Matrix CI
Docs not available [build log]
All reported builds failed as of 2016-12-02 [all 5 reports]


  • Control
    • Monad
      • Control.Monad.Readers
      • Control.Monad.States


Maintainer's Corner

For package maintainers and hackage trustees