I think the "old style" `#pragma` is necessary in Swift.
Exactly in the same way it is available in C/C++ or Objective-C/C++, or in something else portable way.
Because `#pragma` is not handled in Swift, in Xcode they overloaded the semantic of comments, giving to the comment `// MARK:` the semantic of `#pragma mark`
But my point of view is that, I would like that what it is written in a source comment (what it is written after a // or between /* */ ) should be fully ignore by compiler or IDE.
I understand that maybe a compiler shouldn't lose time handling `#pragma options`, but giving semantics to source comment, I think it can be dangerous and misunderstood.
The implementation in Swift compiler should be simple, ignoring any line beginning with `#pragma` (ok I know It is not simple)
The IDE will handle the `#pragma`
That's why they invented `#pragma`in C/C++ Objective-C/C++ right?
Thanks for your attention, and sorry for my bad english: I am Italian native spoke language.
#pragma mark - sign