Swift — Говнокод.ру

Swift / Говнокод #26738

+1

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struct Ololo: Comparable {
    let value: Int
    
    static func < (lhs: Ololo, rhs: Ololo) -> Bool {
        return lhs.value < rhs.value
    }
    
    static func < (lhs: Ololo, rhs: Ololo) -> String {
        if lhs.value < rhs.value {
            return "LESS"
        } else if lhs.value > rhs.value {
            return "MORE"
        } else {
            return "EQUAL"
        }
    }
}

let ololo1 = Ololo(value: 100)
let ololo2 = Ololo(value: 200)

let bool: Bool = ololo1 < ololo2
let string: String = ololo1 < ololo2

А в плюсах можно в operator> любую херь вернуть © jojaxon

Наверное, я поторопился, когда сказал, что крестобляди будет в свифте тесно.

Desktop, 06 Июня 2020

Комментарии (59)

Swift / Говнокод #26534

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import Foundation

@objc protocol SomethingDoable {
    func doSomething()
}

class Inner: SomethingDoable {
    @objc func doSomething() {
        print("Inner!")
    }
}

@objc class Outer: NSObject {

    let inner: SomethingDoable = Inner()

    override func forwardingTarget(for aSelector: Selector!) -> Any? {
        return inner
    }
}

let outer = Outer()
outer.perform(#selector(SomethingDoable.doSomething))

Удачного дебага!

Desktop, 27 Марта 2020

Комментарии (52)

Swift / Говнокод #25705

+1

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/* Create a JSON object from JSON data stream. The stream should be opened and configured. All other behavior of this method is the same as the JSONObjectWithData:options:error: method.
     */
open class func jsonObject(with stream: InputStream, options opt: ReadingOptions = []) throws -> Any {
    var data = Data()
    guard stream.streamStatus == .open || stream.streamStatus == .reading else {
         fatalError("Stream is not available for reading")
     }
     repeat {
         var buffer = [UInt8](repeating: 0, count: 1024)
         var bytesRead: Int = 0
         bytesRead = stream.read(&buffer, maxLength: buffer.count)
         if bytesRead < 0 {
             throw stream.streamError!
         } else {
             data.append(&buffer, count: bytesRead)
         }
     } while stream.hasBytesAvailable
     return try jsonObject(with: data, options: opt)
}

Потоковое чтение JSON от авторов "iСделаль"

Desktop, 07 Июля 2019

Комментарии (23)

Swift / Говнокод #25669

+1

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import SwiftUI


struct LandmarkDetail: View {
    @EnvironmentObject var userData: UserData
    var landmark: Landmark


    var landmarkIndex: Int {
        userData.landmarks.firstIndex(where: { $0.id == landmark.id })!
    }


    var body: some View {
        VStack {
            MapView(landmark: landmark)
                .frame(height: 300)


            CircleImage(image: landmark.image(forSize: 250))
                .offset(y: -130)
                .padding(.bottom, -130)


            VStack(alignment: .leading) {
                HStack {
                    Text(landmark.name)
                        .font(.title)


                    Button(action: {
                        self.userData.landmarks[self.landmarkIndex].isFavorite.toggle()
                    }) {
                        if self.userData.landmarks[self.landmarkIndex].isFavorite {
                            Image(systemName: "star.fill")
                                .foregroundColor(Color.yellow)
                        } else {
                            Image(systemName: "star")
                                .foregroundColor(Color.gray)
                        }
                    }
                }


                HStack(alignment: .top) {
                    Text(landmark.park)
                        .font(caption)
                    Spacer()
                    Text(landmark.state)
                        .font(.caption)
                }
            }
            .padding()


            Spacer()
        }
        .navigationBarTitle(Text(landmark.name), displayMode: .inline)
    }
}

https://developer.apple.com/tutorials/swiftui/handling-user-input

Принципиально новый нескучный "декларативный" UI от компании Apple. В наличии:
* магические константы
* спагетти из замыканий
* биндинги, страшные как атомная война
* где-то внутри модная хипстерская реактивная либа

На фоне этого кошмара qml кажется вершиной инженерной мысли

Desktop, 08 Июня 2019

Комментарии (41)

Swift / Говнокод #25197

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scheduler.queue.async { [weak self] in
            guard let weakself = self else {
                return
            }
            
            let locations = weakself.interactor

kyzmitch, 16 Декабря 2018

Комментарии (198)

Swift / Говнокод #24885

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enum ErrorViewHelper {

    static var errorIsShown = false
    static var errorView: ErrorView?

    private static var errorWindow: UIWindow = {
        let width = (UIApplication.shared.delegate as? AppDelegate)?.window?.frame.size.width ?? 300
        let window = UIWindow(frame: CGRect(x: 0, y: 0, width: width, height: 300))
        return window
    }()

    static func show(error: Error) {
        if let error = error as? RequestError {
            switch error {
            case .error(description: let text):
                showErrorView(error: text)
            case .errorWithMeta(description: let text, meta: _):
                showErrorView(error: text)
            case .needAuthError:
                showErrorAlert(title: nil, message: R.string.localizable.needAuthError()) {
                    // TODO: remove router from this class
                    AuthRouterImpl().showAuthPage()
                    AuthRouterImpl().showAuthFlowModally()
                }
            case .badResponse:
                showErrorView(error: R.string.localizable.badResponse())
            default: break
            }
        } else {
            showErrorView(error: error.text)
        }
    }

vkasci, 09 Октября 2018

Комментарии (20)

Swift / Говнокод #24592

+1

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// NextViewController.swift

override func tableView(tableView: UITableView!, didSelectRowAtIndexPath indexPath: NSIndexPath!) {
    NSUserDefaults.standardUserDefaults().setInteger(indexPath.row, forKey: "Selected offense")
		
    let offense: NSDictionary = self.offenses.objectAtIndex(indexPath.row) as NSDictionary
    let id: Int = offense.objectForKey("id") as Int
    let title: String = offense.objectForKey("title") as String
    NSUserDefaults.standardUserDefaults().setInteger(id, forKey: "Selected offense id")
    NSUserDefaults.standardUserDefaults().setObject(title, forKey: "Selected offense title")
}

// PreviousViewController.swift

override func viewDidAppear(animated: Bool) {
    super.viewDidAppear(animated)
    hideKeyboard()
    tableView.reloadData()
}
	
func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell! {
    let kCellIndetifier: String = "NewOffenseCell"
    var cell: UITableViewCell = tableView.dequeueReusableCellWithIdentifier(kCellIndetifier, forIndexPath: indexPath) as UITableViewCell
		
    if cell == nil {
        cell = UITableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: kCellIndetifier)
    }
		
    cell.text = NSUserDefaults.standardUserDefaults().stringForKey("Selected offense title")
    cell.font = UIFont.systemFontOfSize(20)
    return cell
}

Реализуем колбэки *лицорука*

def, 06 Августа 2018

Комментарии (95)

Swift / Говнокод #24591

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func createCrossForRemovingImage() {
		var firstCrossView: UIImageView = UIImageView(frame: CGRectMake(90, -10, 30, 30))
		firstCrossView.layer.cornerRadius = 15
		firstCrossView.image = UIImage(named: "Cross")
		firstCrossView.tag = 200
		firstCrossView.userInteractionEnabled = true
		firstCrossView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: "removeImage:"))
		firstCrossView.hidden = true
		
		var secondCrossView: UIImageView = UIImageView(frame: CGRectMake(90, -10, 30, 30))
		secondCrossView.layer.cornerRadius = 15
		secondCrossView.image = UIImage(named: "Cross")
		secondCrossView.tag = 200
		secondCrossView.userInteractionEnabled = true
		secondCrossView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: "removeImage:"))
		secondCrossView.hidden = true
		
		var thirdCrossView: UIImageView = UIImageView(frame: CGRectMake(90, -10, 30, 30))
		thirdCrossView.layer.cornerRadius = 15
		thirdCrossView.image = UIImage(named: "Cross")
		thirdCrossView.tag = 200
		thirdCrossView.userInteractionEnabled = true
		thirdCrossView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: "removeImage:"))
		thirdCrossView.hidden = true
		
		var fourthCrossView: UIImageView = UIImageView(frame: CGRectMake(90, -10, 30, 30))
		fourthCrossView.layer.cornerRadius = 15
		fourthCrossView.image = UIImage(named: "Cross")
		fourthCrossView.tag = 200
		fourthCrossView.userInteractionEnabled = true
		fourthCrossView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: "removeImage:"))
		fourthCrossView.hidden = true
		
		firstImageView.addSubview(firstCrossView)
		secondImageView.addSubview(secondCrossView)
		thirdImageView.addSubview(thirdCrossView)
		fourthImageView.addSubview(fourthCrossView)
	}

Когда-то я это написал Оо

def, 06 Августа 2018

Комментарии (20)

Swift / Говнокод #24489

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type file;

app (file o) simulation ()
{
  simulate stdout=filename(o);
}

foreach i in [0:9] {
  file f <single_file_mapper; file=strcat("output/sim_",i,".out")>;
  f = simulation();
}

Более другой swift

Desktop, 13 Июля 2018

Комментарии (39)

Swift / Говнокод #24431

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@dynamicMemberLookup
struct Uppercaser {
    subscript(dynamicMember input: String) -> String {
        return input.uppercased()
    }
}

Uppercaser().hello // → "HELLO"
// You can type anything, as long as Swift accepts it as an identifier.
Uppercaser().käsesoße // → "KÄSESOSSE"

https://oleb.net/blog/2018/06/dynamic-member-lookup

The proposal and implementation of dynamic member lookup was largely driven by the Swift for TensorFlow team at Google. Their main motivation is to facilitate interoperability between Swift and dynamic languages, specifically (though not exclusively) Python. Their goal is to make it possible to call Python code from Swift with a pretty and familiar syntax.

We need MOAR syntax sugar

Desktop, 30 Июня 2018

Комментарии (21)

Говнокод: по колено в коде.