It seems that I can write: let array = decoder.decodeObject(of: [NSArray.self], forKey: kArrayKey) as! [Int]
But shouldn't I be able to specify that this is an array of Ints, and not just an array of anything? I should probably avoid force unwrapping - this ought to be a failable initializer, right? Jeremy -- > On 20 Dec 2017, at 01:09, Jeremy Hughes <moon.rab...@virginmedia.com> wrote: > > The release notes for 10.13 say: > > If your application is linked on macOS 10.13 SDK or later, classes that > return NSPasteboardReadingAsKeyedArchive from > readingOptionsForType:pasteboard: must support secure coding, and will be > decoded with a coder that requires secure coding. > > So I’m updating some of my classes to support NSSecureCoding, and I’m having > trouble figuring out how I should decode an array of Ints. > > Previously, I had: > > let array = decoder.decodeObject(forKey: kArrayKey) as! [Int] > > I think that I need to replace that with something like: > > let array = decoder.decodeObject(of: allowedClasses, forKey: kArrayKey) as! > [Int] > > but I can’t work out how to define allowedClasses. > > In a previous discussion, Quincey Morris wrote: > >> The solution is to fall back to an explicit NSSet object: >> >> let classes = NSSet (objects: NSArray.self, MyElementClass.self) >> let myArray = coder.decodeObjectOfClasses (classes, forKey: “myArray”) > > So I’ve tried: > > let allowedClasses = NSSet(objects: NSArray.self, Int.self) > > But I get an error: Cannot invoke 'decodeObject' with an argument list of > type '(of: NSSet, forKey: String)’ > > I also think there should be a way of doing this that uses Array and Set > rather than NSArray and NSSet > > Jeremy > > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
