I'd say the question was "solved" by Prograph CPX in the 1990s, except the diagram WAS the code. https://www.google.com/search?q=Prograph+CPX&rlz=1C5CHFA_enGB8

I'd say the question was "solved" by Prograph CPX in the 1990s, except the diagram WAS the code. https://www.google.com/search?q=Prograph+CPX&rlz=1C5CHFA_enGB865GB865&oq=Prograph+CPX&aqs=chrome..69i57j0i390.10327j0j7&sourceid=chrome&ie=UTF-8 https://www.google.com/search?q=Prograph+CPX&rlz=1C5CHFA_enG... You'd have high level classes, and low-level nitty gritty. You could edit your code as it was running (and then continue). People prefer text (weirdly).