I would say that it compromises between ML/Haskell-style FP and procedural. It doesn't have much to do with OO, bar trait objects, and the dot operator (which i

I would say that it compromises between ML/Haskell-style FP and procedural. It doesn't have much to do with OO, bar trait objects, and the dot operator (which is almost entirely syntactic sugar). It's a gateway drug to ML/Haskell-style FP because it eases you into expressive type systems, pattern matching, higher order functions, and pervasive use expressions over statements. Many people have told me that it was much easier to learn Haskell or Ocaml, etc. after learning Rust.