Bob Nystrom has a good article on this (the expression problems it’s called) https://journal.stuffwithstuff.com/2010/10/01/solving-the-expression-problem/ http

Bob Nystrom has a good article on this (the expression problems it’s called) https://journal.stuffwithstuff.com/2010/10/01/solving-the-expression-problem/ https://journal.stuffwithstuff.com/2010/10/01/solving-the-ex... He also discusses it in his book Crafting Interpreters.