The point is that it would allow me to write clean code; code that avoids unpleasant surprises. See the last paragraph of my last post for how a harmless non-data change (such as changing a constant to a variable) can change the result of your macro. Maybe I should have added that that was meant to represent usage in a big project, as surprises are no problem in small macros.

However, this discussion is beside the point of my question. My intention was to find out if such functionality exists. I guess my question has been answered now; if an experienced mentor such as you hasn’t heard of it, then it probably doesn’t exist. So, thank you for taking the time to think about it. I’ll leave the question active for a few more days, but if no one else has heard of that functionality, then I’ll close this as resolved.