@ekaitz_zarraga Essentially, yes. If your code is heavily OOP, then you have encapsulated the data in objects and breaking that open would be a lot of work. So either you create a record type for each object, or if your language does not have record types, you mimic it using a map with a kind of typename field (which is what I called a "tag").
Then you can at least patter match against that. And if your tags have some structure, you can mimic inheritance by partial matching and synonyms.

@ekaitz_zarraga @kai Oh! Very happy for you! When I had it, I couldn't move at all for some time.

@ondiz "Real programmers don't comment their code. If it was hard to write it should be hard to read"

@ekaitz_zarraga Thanks! I prefer functional programming over OOP so that is reflected in my talk.

@ekaitz_zarraga

Laziness, one of the three virtues of the programmer!

I can relate to your views. I code to solve problems, for myself and others. And because it's fun.