Re: [Haskell-cafe] How to speedup generically parsing sum types?

2011/11/3 Claus Reinke :

Not that it matters much if you're going with other tools, but your SYB code has a long linear chain of type rep comparisons, at every level of the recursive traversals. That is partially inherent in the SYB design (reducing everything to cast), but could probably be improved?

I'm not an expert on the SYB code. So if you have an idea how to improve it please file a ticket or even better send a pull request. Cheers, Bas