> Line breaks in code are pretty much always semantically significant to the human reader even if they're not semantically significant to the compiler because t

> Line breaks in code are pretty much always semantically significant to the human reader even if they're not semantically significant to the compiler because the relative vertical and horizontal alignment of non-whitespace characters is fixed and intentional. What would be cool is a well-behaved autoformatter like Black, or perhaps gofmt or rustfmt (clang-format definitely fails since it's not even idempotent), which automatically reflows code to the width of your text editor (or even shrinks the indentation size) as you resize or split the window, and reformats it back to a standard width upon saving and committing. This requires that formatting to a different width then back to the original is a no-op, which I believe Black and rustfmt can achieve, but is harder to get right than storing the code as an AST on-disk. Also, rustfmt fails to reformat the interior of macro invocations.