> You're thinking of defaultless switch statements. Rust and Typescript catch those issues as long as you don't add a default. I'd already thought of it when I

> You're thinking of defaultless switch statements. Rust and Typescript catch those issues as long as you don't add a default. I'd already thought of it when I typed it But the same problem exists with interfaces and virtual dispatch! If you provide a default implementation at the interface / abstract class level, then the compiler won't tell you forgot to implement that method, because it would see the default one exists.