Error combining NSCalendarUnit with OR (pipe) in Swift 2.0

Question

I have some code that's breaking in Swift 2.0:

let formatter = NSDateComponentsFormatter()
formatter.allowedUnits = NSCalendarUnit.Year
formatter.allowedUnits |= .Month
formatter.allowedUnits |= .WeekOfMonth 
formatter.allowedUnits |= .Day
formatter.allowedUnits |= .Hour
formatter.allowedUnits |= .Minute

I get the error Binary operator '|=' cannot be applied to 'NSCalenderUnit' operands.

What's the new way of doing this kinda thing?

Essentially the same problem (and solution) as http://stackoverflow.com/questions/30761996/swift-2-0-binary-operator-cannot-be-applied-to-two-uiusernotificationtype. — Martin R, Sep 03 '15 at 17:47

score 7 · Accepted Answer · answered Sep 03 '15 at 17:14

NSCalendarUnit is an OptionSetType in Swift 2, instead of a RawOptionSetType. This means that you can't logical-or it anymore. Instead, you can use an array literal representation of it:

formatter.allowedUnits = [.Year, .Month, .WeekOfMonth, .Day, .Hour, .Minute]

Error combining NSCalendarUnit with OR (pipe) in Swift 2.0

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