Swift Memory Leak on NSArray

Question

I'm developing an app using the Singleton Pattern and Swift programming language. When I Profile the app with Instruments, I noticed that there's a memory leak pointing to an NSArray. Instruments is pointing to the following line of code (Please check screenshot). Can anyone find why the leak is happening? I tried to initialize the array Workout as:

workout = []

The leak wasn't reported. Maybe it has something to do with the unarchiving?

Answer 1

Checkout this answer here: Swift Decode Array Custom Class Memory Leak It seems to be a bug. I had the same problem too. So instead of directly assign the value to workout , you can do:

if let wo = NSKeyedUnarchiver.unarchiveObjectWithFile(Utilities.getFileURL("workout")) as? [ExceciseObject] {
    workout = wo.map { $0 }
}