The transformers package

[Tags: bsd3, library]

A portable library of functor and monad transformers, inspired by the paper "Functional Programming with Overloading and Higher-Order Polymorphism", by Mark P Jones, in Advanced School of Functional Programming, 1995 (

This package contains:

The package can be used on its own in portable Haskell code, in which case operations need to be manually lifted through transformer stacks (see Control.Monad.Trans.Class for some examples). Alternatively, it can be used with the non-portable monad classes in the mtl or monads-tf packages, which automatically lift operations introduced by monad transformers through other transformers.


Versions0.0.0.0,,,,,,,,,,,,,,, (info)
Change logchangelog
Dependenciesbase (>=1.0 && <4.8), special-functors (==1.0.*) [details]
AuthorAndy Gill, Ross Paterson
MaintainerRoss Paterson <>
Source repositoryhead: darcs get
UploadedTue May 6 23:52:16 UTC 2014 by RossPaterson
UpdatedThu Dec 4 14:05:57 UTC 2014 by HerbertValerioRiedel to revision 1
DistributionsDebian:, Fedora:, LTSHaskell:, NixOS:, Stackage:
Downloads222127 total (693 in last 30 days)
2 []
StatusDocs available [build log]
Successful builds reported [all 1 reports]




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