The syb-extras package

[ Tags: bsd3, combinators, generic, library, polymorphism ] [ Propose Tags ]

Higher order versions of the Scrap Your Boilerplate classes to ease programming with polymorphic recursion and reduce UndecidableInstances

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Versions 0.1, 0.2.0, 0.2.1,, 0.2.2,, 0.2.3, 0.2.4,, 0.3
Dependencies base (>=4 && <4.7), eq (==4.*), prelude-extras (>=0.1 && <1) [details]
License BSD3
Copyright Copyright (C) 2011 Edward A. Kmett
Author Edward A. Kmett
Maintainer Edward A. Kmett <>
Category Polymorphism, Combinators, Generic
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Source repository head: git clone git://
Uploaded Mon Nov 25 18:24:21 UTC 2013 by EdwardKmett
Updated Sat May 28 06:16:53 UTC 2016 by AdamBergmark to revision 2
Distributions NixOS:0.3
Downloads 2210 total (11 in the last 30 days)
Rating 2.0 (1 ratings) [clear rating]
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Status Docs available [build log]
Successful builds reported [all 1 reports]
Hackage Matrix CI




Maintainer's Corner

For package maintainers and hackage trustees

Readme for syb-extras-0.3

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Build Status

This permits the construction of higher-rank Data instances.

Contact Information

Contributions and bug reports are welcome!

Please feel free to contact me through github or on the #haskell IRC channel on

-Edward Kmett