Xcode-beta (7A176x): NSDate.timeIntervalSinceDate returns function instead of NSTimeInterval in Swift

Originator:david.w.hart
Number:rdar://22208236 Date Originated:10-Aug-2015 09:11 AM
Status:Open Resolved:
Product:Developer Tools Product Version:Xcode-beta (7A176x)
Classification:Serious Bug Reproducible:Always
 
Summary:
Swift’s compiler thinks that NSDate’s timeIntervalSinceDate class function returns a closure of the type NSDate -> NSTimeInterval.

Steps to Reproduce:
Attempt the compile the following piece of code:

let date: NSDate = NSDate()
let interval: NSTimeInterval = NSDate.timeIntervalSinceDate(date)

Expected Results:
I expect it to compile.

Actual Results:
It fails with the following error:

error: '(NSDate) -> NSTimeInterval' is not convertible to 'NSTimeInterval'
                        let interval: NSTimeInterval = NSDate.timeIntervalSinceDate(startDate)
                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Regression:
The following piece of code DOES compile and produces the correct results (it should not):

let date: NSDate = NSDate()
let interval: NSTimeInterval = NSDate.timeIntervalSinceDate(date)(date)

Comments


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