This refactoring pretty well walks down the path of the expression problem [1]. Sometimes it's more convenient to have a fixed set of functions that accept diff

This refactoring pretty well walks down the path of the expression problem [1]. Sometimes it's more convenient to have a fixed set of functions that accept different types, and others its more convenient to have a fixed set of types that offer different functions. One's not strictly better than the other. [1]: https://craftinginterpreters.com/representing-code.html#the-expression-problem https://craftinginterpreters.com/representing-code.html#the-...