Elsewhere in this thread it's mentioned that Google makes use of large-scale, automated refactoring tools: http://research.google.com/pubs/pub41342.html http://

Elsewhere in this thread it's mentioned that Google makes use of large-scale, automated refactoring tools: http://research.google.com/pubs/pub41342.html http://research.google.com/pubs/pub41342.html Would be interesting to know what percentage of the total LoC touched are typically from that kind of automated refactor. Depending on the codebase, you can touch a ton of lines of code in a very small amount of time with those tools.