Swift on a Deadline - Speaker Deck

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Swift [on a deadline] @orta

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Full writeup on Artsy blog @orta

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Artsy @orta

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OSS by Default @orta

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Kiosk @orta

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@orta

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@orta

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@orta

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Eidolon @orta

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I ❤ languages @orta

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❤ ruby @orta

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! swift @orta

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Good bits @orta

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$0 $1 // Add subviews cellSubviews.map{ self.contentView.addSubview($0) } @orta

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Overloading public func ==(lhs: UIStoryboardSegue, rhs: SegueIdentifier) -> Bool { return lhs.identifier == rhs.rawValue } override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) { if segue == .ShowSaleArtworkDetails { let saleArtwork = sender as SaleArtwork! ... } } @orta

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Lazy lazy var keypadSignal:RACSignal! = self.keypadContainer.keypad?.keypadSignal lazy var clearSignal:RACSignal! = self.keypadContainer.keypad?.rightSignal lazy var deleteSignal:RACSignal! = self.keypadContainer.keypad?.leftSignal lazy var provider:ReactiveMoyaProvider = Provider.sharedProvider @orta

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Clo-uncs func isZeroLengthString(string:AnyObject!) -> AnyObject! { return countElements(string as String) == 0 } ... let numberIsInvalidSignal = RACObserve(bidDetails.newUser, "phoneNumber").map(isZeroLengthString) RAC(confirmButton, "enabled") <~ numberIsInvalidSignal.notEach() @orta

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Inline @IBOutlet var bidButton: Button! @IBAction func bidButtonTapped(sender: AnyObject) { let identifier = hasAlreadyPlacedABid ? SegueIdentifier.PlaceAnotherBid : SegueIdentifier.ConfirmBid performSegue(identifier) } @orta

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Language Coupling @orta

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Xcode @orta

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@orta

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Quotes @orta

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In just six months, Swift’s high performance and clean syntax have made it the most popular way to find out that SourceKitService Terminated — @Horse_iOS // https://twitter.com/Horse_iOS/status/533027167488454656 @orta

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There is so much you cannot do with Swift, my code is littered with @objc. NSObject and a whole load more legacy #SwiftLang — @ColinEberhardt - ( Shinobi Controls ) // https://twitter.com/ColinEberhardt/status/ 531506177180700673 @orta

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I started looking at Swift today and I've restarted the playground at least 20 times in the past hour. Hard to get excited about this… — @chockenberry - ( Twitteriffic.app ) // https://twitter.com/chockenberry/status/ 532270455537692672 @orta

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I’m getting multiple SourceKitService crashed for every(!) line I write in this Swift project. This stuff is far from ready… — @pieteromvlee - ( Sketch.app ) [^om] // https://twitter.com/pieteromvlee/status/ 531534471708020736 @orta

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For all the crap I give #swift, the syntax is still much nicer than ObjC. Hopefully the expressiveness of ObjC is brought quickly. — @owensd - ( MS Office ) // https://twitter.com/owensd/status/524972593774743553 @orta

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Issues @orta

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Completion @orta

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Lib Code Signing @orta

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Git Submodules @orta

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No Incremental Builds @orta

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Code Signing @orta

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Playgrounds @orta

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No Pch Files @orta

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Stack Trace @orta

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RAC @orta

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Swift + RAC @orta

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func waitForBidResolution () -> RACSignal { return self.pollForUpdatedSaleArtwork().then { [weak self] (_) in return self == nil ? RACSignal.empty() : self!.checkForMaxBid() } .doNext { _ in self.bidIsResolved = true return // If polling fails, we can still show bid confirmation. Do not error. } .catchTo( RACSignal.empty() ) } src @orta

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bidderNetworkModel.createOrGetBidder().doError { (error) -> Void in self.bidderError() } .then { if !self.placingBid { ARAnalytics.event("Registered New User Only") return RACSignal.empty() } ARAnalytics.event("Started Placing Bid") return self.placeBid() } .then { [weak self] (_) in if self == nil { return RACSignal.empty() } self?.bidCheckingModel = self?.bidCheckingModel ?? self?.createBidCheckingModel() if self?.placingBid == false { return RACSignal.empty() } return self!.bidCheckingModel.waitForBidResolution() } .subscribeCompleted { [weak self] (_) in self?.finishUp() return } src @orta