Open Radar

 
Summary:
Value for expirationDate can return nil but type is not defined as optional in API for NSUserActivity

When value is nil, there is a crash.
Can not nil check because type is not defined to allow nil check

Steps to Reproduce:
Function to test: (in appDelegate)
application(_ application: UIApplication,
                     continue userActivity: NSUserActivity,
                     restorationHandler: @escaping ([Any]?) -> Void) -> Bool

1. Cause an app to be opened by: function noted above
2. Assure cause will have nil expiration date (I used a simple weblink, associated through an associated domain)
3. In function: print("crash here: \(userActivity.expirationDate)



Expected Results:
NSUser Activity definition in SDK:
    /* If non-nil, then an absolute date after which this activity is no longer eligible to be indexed or handed off. */
    @available(iOS 9.0, *)
    open var expirationDate: Date


So.. if the non optional isn't nil we're okay. but if the non-option is nil...


Actual Results:
Crash

Attempt to p or po userActivity.expirationDate:
error: Execution was interrupted, reason: EXC_BREAKPOINT (code=1, subcode=0x1026683d0).
The process has been returned to the state before expression evaluation.

Version:
Phone: iOS 10.3.2 (14F5089a) ,Simulator: 10.3 (14E269)

Notes:
Xcode 8.3.2 (8E2002); Reproduces always
SDK: 10.3
Problem is reentry of closed issue: 29024139


Configuration:
iPhone 7+, Simulator