The tagged-identity package

[Tags:bsd3, library]

Trivial monad transformer that allows identical monad stacks have different types.

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Versions 0.1.0, 0.1.1
Change log
Dependencies base (>=4.7 && <5.0), mtl (>=2.0 && <3.0), transformers (>=0.4 && <0.6) [details]
License BSD3
Author Mark Karpov <>
Maintainer Mark Karpov <>
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Source repository head: git clone
Uploaded Thu Nov 3 16:31:53 UTC 2016 by mrkkrp
Distributions LTSHaskell:0.1.1, NixOS:0.1.1, Stackage:0.1.1, Tumbleweed:0.1.1
Downloads 69 total (7 in the last 30 days)
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Status Docs available [build log]
Last success reported on 2016-11-17 [all 1 reports]




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Readme for tagged-identity

Readme for tagged-identity-0.1.1

Tagged Identity

License BSD3 Hackage Stackage Nightly Stackage LTS Build Status

The library provides a monad transformer that works just like IdentityT, but can be tagged at type level. This allows to work with monad stacks as usual, but you can make two identical monad stacks have different types. The main application of this is, of course, the ability to have different instances for otherwise the same stacks without having to do opaque newtype wrapping which is not handy with monad stacks.


Copyright © 2016 Mark Karpov

Distributed under BSD 3 clause license.