This looks great. I can’t imagine it helping performance much but at least should make the task much easier.
Oh that is exactly how I implemented variables, nice to see I am on the right track. I did leave out this part though for simplicity sake.
No, I explicitly want to modify the NumberLiteral and that is just the start. I need to be able to do all sorts of complex modifications to the AST in real time, deleting and moving nodes and so on. (If you need to know, it is similar to what the editor of the Roc programming language does, allowing you to edit the language directly in AST form. At least from what I can tell from the videos.)
I think it might be better to think about me wanting to writer an editor for a complex ToDo List with child elements or something like this, which would require similar solutions.