[loup-vaillant]

C has this nice preprocessor directive that indicate the actual source code:

   #line 42 "actual_source.lang"

Subsequent tools like gdb/lldb pick up on that, and point to your source code instead of the intermediate C. So you don't care that the C code is wildly different from your own, the tools can still point to to the right place.

Sounds pretty productive to me.