'YearCalendarUnit' was deprecated in OS X version 10.10: Use NSCalendarUnitYear instead

Question

My code:

 let calendar = NSCalendar.currentCalendar()
 let dateComponents = calendar.components(NSCalendarUnit.YearCalendarUnit | NSCalendarUnit.MonthCalendarUnit | NSCalendarUnit.DayCalendarUnit, fromDate: self)

My error:

'YearCalendarUnit' was deprecated in OS X version 10.10: Use NSCalendarUnitYear instead
'MonthCalendarUnit' was deprecated in OS X version 10.10: Use NSCalendarUnitMonth instead
'DayCalendarUnit' was deprecated in OS X version 10.10: Use NSCalendarUnitDay instead

But I can't type NSCalendarUnitYear as well as (NSCalendarUnitMonth/ NSCalendarUnitDay) What is wrong?

Answer 1

Use let dateComponents = calendar.components(.CalendarUnitYear | .CalendarUnitMonth | .CalendarUnitDay, fromDate: self)

Edit:
This is because the error messages are for Objective-C, not adapted for swift.

Edit 2: see Will's comment for Swift 2 and on.