It is in Rust: impl<T> Codable for Array<T> where T: Codable {} Also synthesized implementations are known in Rust as auto derive (#[derive(Eq, Hash)]).

It is in Rust: impl<T> Codable for Array<T> where T: Codable {} Also synthesized implementations are known in Rust as auto derive (#[derive(Eq, Hash)]). It's nice to see Swift and Rust agree on such features.