6 hours ago
- Guarded methods attach constraints to the receiver only for specific methods, allowing calls only when the receiver satisfies those constraints.
- OCaml does not natively support guarded methods, but they can be encoded using a type equality witness.
- The problem arises when a class-level generic constraint is too broad; method-level constraints are more flexible.
- Three approaches exist: moving the method outside the class, extension methods, and guarded methods, with the last being most ideological.