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th-alpha

Version 0.2.1.0 revision 0 uploaded by jkarni.

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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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