Re: [Haskell-cafe] Replace data constructors via meta programming

Frerich Raabe writes:

You might benefit from the 'catamorphism' package:

https://hackage.haskell.org/package/catamorphism-0.5.1.0/docs/Data-Morphism-...

catamorphism would be a great solution to this kind of problem, but unfortunately it does not work with any 8.x version of GHC: https://github.com/frerich/catamorphism/issues/5 That makes its use impractical for most purposes, IMHO. Best regards, Peter