How have I not made this connection before??? #rstats' S3 dispatch mechanism is strikingly similar to #rust's trait system (provided your mental model is sufficiently flexible and can compare function call vs method, that distinction perhaps being the reason I hadn't).
@jonocarroll What is your opinion on this being called "functional oop" in the #RStats ecosystem? Is it a synonym for multiple dispatch? is it something else, but close enough?
@brodriguesco I'm not one to place labels on these. S4 is multiple dispatch so that's slightly different (and more similar to what Julia offers). I think the focus on types (classes for R) - especially for multiple arguments to a function - really make for an incompatibility with anything you could call traditional "OOP". I can't say I've studied the other side of that so much, so I could very well be mistaken.
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