[antoine-levitt]

Do not be fooled, julia is not a oo language, despite some similarities. If you try to replicate oo patterns in Julia it's not going to work well, but in idiomatic julia I've never found the need for concrete subtyping: generally julia under emphasizes class hierarchies in favor of types as dispatch vessels and data holders. It's very different from OOP but when you get used to it it's quite nice. The things I miss from oop is the consistency (when there's just one way to model the world you don't have to think quite as much about design) and things like tab completion for method discovery.

[foerbert]

I don't actually do much OO. I typically stick with Ada. It does have OO, but I rarely reach for it if I don't need it. Most of my typing interests are actually from the non-OO side.

Too much detail is around in a far too large response to another commenter, though I can't actually suggest it... But at least a bit of the start should provide a little more detail on what I'm looking for with types.

[cbkeller]

I haven't seen it done yet, but in principle someone could probably write an editor plugin that gives some sort of autocomplete for method discovery in Julia based on `methodswith` or similar, which would be a nice thing to have!