News for hackers. Stuff that matters.

A comment on The visitor pattern is essentially the same thing as Church encoding. Parent comment

Re:The visitor pattern is essentially the same thing as Chur... by h_anna_h on Thursday February 04, 2021 @06:45PM (#26031162)
What do you mean? This solves the issue that you mentioned. I am not really a "functional programming guy" myself.
[ Parent | on HN ]
Re:The visitor pattern is essentially the same thing as Chur... by mdoms on Thursday February 04, 2021 @07:23PM (#26031457)
Yes it solves the problem while introducing a hard dependency from a shape to some stringly typed hashmap from who-knows-where.
[ Parent | on HN ]
Re:The visitor pattern is essentially the same thing as Chur... by h_anna_h on Saturday February 06, 2021 @05:22AM (#26045596)
Not really sure what "stringly typed" means. This is just the effect of trying this trick in python.
[ Parent | on HN ]