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guard
    let htmlPath = NSBundle.mainBundle().pathForResource("LICENSES", ofType: "html"),
    let html = try? String(contentsOfFile: htmlPath, encoding: NSUTF8StringEncoding)
else {
    fatalError("LICENSES.html not found.")
}

let webView = WKWebView(frame: CGRectZero, configuration: WKWebViewConfiguration())
webView.loadHTMLString(html, baseURL: nil)

ayanonagon

enum Side {
    case Top
    case Left
    case Bottom
    case Right
}

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enum Side: Int {
    case Top
    case Left
    case Bottom
    case Right
}

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enum Side: String {
    case Top
    case Left
    case Bottom
    case Right
}

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enum Status: String {
    case Draft = "draft"
    case Sent = "sent"
    case Failed = "failed"
}

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struct Message {
    let text: String
    let status: Status

    init?(dictionary: NSDictionary) {
        guard
            let text = dictionary["text"] as? String,
            let statusString = dictionary["status"] as? String,
            let status = Status(rawValue: statusString)
        else { return nil }

ayanonagon

struct Message {
    let text: String
    let status: Status
}

ayanonagon

func listMessages(completion: (messages: [Message]?, error: NSError?) -> Void) {
    // Get the list of messages
    // If success, call completion(messages: messages, error: nil)
    // If error, call completion(messages: nil, error: error)
}

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enum Shape {
    case Rectangle(width: Int, height: Int)
    case Circle(radius: Int)
}

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enum Result {
    case Success(messages: [Message])
    case Error(error: NSError)
}