RepLib: Generic programming library with representation types

[ bsd3, generics, library ] [ Propose Tags ]

Generic programming library providing structural polymorphism, simple programming with binders, and other features.

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Versions [RSS] [faq] 0.2.1, 0.2.2, 0.3, 0.4.0, 0.5, 0.5.1, 0.5.2,, 0.5.3,,,,,, 0.5.4,
Dependencies base (>=4.3 && <5), containers (>=0.3 && <0.5), mtl (>=1.1 && <2.1), template-haskell (>=2.4 && <2.6) [details]
License BSD-3-Clause
Author Stephanie Weirich
Maintainer Chris Casinghino <> Brent Yorgey <> Stephanie Weirich <>
Category Generics
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Uploaded by BrentYorgey at 2010-12-07T22:43:47Z
Distributions NixOS:
Downloads 13942 total (74 in the last 30 days)
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Maintainer's Corner

For package maintainers and hackage trustees


Readme for RepLib-0.3

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-- Copyright   :  (c) 2006-2010, RepLib team (see LICENSE)
-- License     :  BSD
-- Maintainer  :,
-- Stability   :  experimental
-- Portability :  non-portable
-- RepLib 
--    a library of derivable type classes based on representation types
--  See for more information.

RepLib has been tested with GHC 7.0.1.  It currently does not compile with 
GHC 6.12.x or earlier.

This library contains the following modules:

Generics.RepLib.R           - Basic type representations
Generics.RepLib.R1          - Parameterized type representations
Generics.RepLib.Derive      - Template Haskell code to automatically derive 
                              representations of datatypes.
Generics.RepLib.PreludeReps - Reps of Prelude types
Generics.RepLib.RepAux      - Helper functions to define type-indexed functions

Generics.RepLib.Lib         - Examples of specializable type-indexed functions
Generics.RepLib.PreludeLib  - Examples type-indexed functions from prelude

Generics.RepLib.SYB.Aliases - SYB: Port of Data.Generics.Aliases
Generics.RepLib.SYB.Schemes - SYB: Port of Data.Generics.Schemes

RepLib                      - Top-level module that re-exports all of the above

                             - Tools for generic programming with
                               binders (alpha renaming, substitution,
                               unification, etc.)

Generics.RepLib.Bind.Nominal - Tools for generic programming with
                               binders (alternate implementation)

To use this library, import RepLib and derive representations of your
datatypes. The "Lib" module contains a number of type-indexed
operations that have been predefined.  To see an example of
automatically deriving the representation of a datatype, see the file

Currently, the representations of datatypes with record components,
GADTs and nested datatypes cannot be automatically derived.