Porting can involve a spectrum of changes. If you are porting to a different language, often for bug-for-bug compatibility you try to maintain the same rough co

Porting can involve a spectrum of changes. If you are porting to a different language, often for bug-for-bug compatibility you try to maintain the same rough code and class/object structure as the source codebase. This might give you some non-idiomatic code at first, but once you have good test coverage you can refactor. In this case you might maintain some of the upstream code structure to better match future changes.