At WWDC Apple introduced a new programming language, Swift.

At this point everyone has exactly zero days experience in Swift. This blog will capture and share our learning, and I hope the learnings of others as we go.

objective c - Why do unimplemented optional protocol methods cause runtime errors when that method is called in obj-c? - Stack Overflow

One of the challenges Ash highlighted can one blogger just call another by their first name without permission? I'll assume that's OK is that to have optional parts of a protocol it must be an objc protocol. The challenge Ash highlights is that this then means you can apply it to all of the Swift types struct and enum, we are looking at you.

Tabata Protocol

Well that's not very Swift is it? There is a different note I didn't say better, just different solution. In his example he highlights an optional var, but the example below covers functions too. Here's a protocol that has an optional var and an optional function.

I'm jumping through some hoops to support structs which can't mutate self in a block.

IANA — Protocol Registries

As I'm jumping through hoops to support structs. In case it's not obvious?? Another disadvantage is that with optional you can just ignore the var or func entirely in the implementing Type.

Not so here, I must create something that returns nil. If you ignored structs you could just call the block with an optional chaining, and there would be no need for any returned object in the block declaration.

But I agree with Ash, any Swift solution that does support all Types, isn't really Swift. Nigel has been developing software for over 30 years.

Starting with the ZX Spectrum and moving through the Commodore 64, Amiga, the Windows PC area and for the last 6 years the Mac. Make the Swift 2.

I'm sick of it. Just sick of it. Have you actually heard yourself?

It's just shameful and embarrassing. I'm a middle aged, white, nerd blogger. All the toast, jam side up.

I know that every time I tweet something positive about these people I lose followers. Introduction Download Standard States OK Script.

Introduction Syntax Download Blogs. For Swift developers, new and newer! Swift Studies At WWDC Apple introduced a new programming language, Swift. Not so here, I must create something that returns nil If you ignored structs you could just call the block with an optional chaining, and there would be no need for any returned object in the block declaration. OysterKit updated for Swift 1. Mar 24, Language Swift 3. Get ready for Swift 3.

Optional protocol methods without @objc - NSHint

Mar 9, Playground , SpriteKit , Swift 2. Playing with SpriteKit in a Swift Playground - Update. Time to update my Swift SpriteKit Playground example Jul 20, Swift Studies Comment. Why I maybe don't want you as a reader. Cocoa 1 XCode 1 DrawDown 2 Demolition 3 Reference 3 GameplayKit 5 Swift 2.