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The latest version of th-alpha is 0.2.1.0-0.

th-alpha

Version 0.2.0.2 revision 0 uploaded by jkarni.

Package meta

Synopsis
Alpha equivalence for TH Exp
Description

Compare TH expressions (or clauses, patterns, etc.) for alpha equivalence. That is, compare for equality modulo the renaming of bound variables.

areExpAEq [| \x -> x |] [| \y -> y |]
-- True
do
   let x = mkName "x"
   let y = mkName "y"
   runQ $ (LamE [VarP x] (VarE x)) @= (LamE [VarP y] (VarE y))
-- True

This can be useful when for instance testing libraries that use Template Haskell - usually correctness is only defined up to alpha equivalence.

Author
Julian K. Arni
Bug reports
https://github.com/jkarni/th-alpha/issues
Category
Language
Copyright
Julian K. Arni
Homepage
https://github.com/jkarni/th-alpha
Maintainer
Julian K. Arni <jkarni@gmail.com>
Package URL
n/a
Stability
alpha

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