I'm wrapping CLLocationManager (and its delegate), and I'm trying to create a
protocol like this. This is directly cribbed from CLLocationManagerDelegate.
---------------
public
protocol
LZLocationManagerDelegate : NSObjectProtocol
{
optional public func locationManager(manager: LZLocationManager,
didUpdateLocations locations: [CLLocation])
}
---------------
But I get these errors:
LZLocationManager.swift:16:5: 'optional' can only be applied to members of an
@objc protocol
LZLocationManager.swift:70:41: Cannot use optional chaining on non-optional
value of type '(LZLocationManager, didUpdateLocations: [CLLocation]) -> ()'
Apple's version compiles flawlessly (comments removed):
---------------
public protocol CLLocationManagerDelegate : NSObjectProtocol {
@available(iOS 6.0, *)
optional public func locationManager(manager: CLLocationManager,
didUpdateLocations locations: [CLLocation])
// ...remainder removed for brevity
}
---------------
Adding @objc fixes it, but I would have thought NSObjectProtocol implied that.
Also, when I look at the Apple Swift exports, it's not there (is that a
limitation of the exported view?).
--
Rick Mann
rm...@latencyzero.com
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