Line numbers are a good start, but JS source maps go from output source byte ranges to input source byte ranges. I don't write or even read a lot of C++ these

Line numbers are a good start, but JS source maps go from output source byte ranges to input source byte ranges. I don't write or even read a lot of C++ these days but I recall from when I did that a major pain point was deciphering compiler warnings/errors when there are a lot of templates, macros, or both. Seems like the problem has been around forever.