geor-kasapidi

@available(iOS 3.0, *)
    public enum Code : Int {

        public typealias _ErrorType = SKError

        case unknown = 0

        case clientInvalid = 1 // client is not allowed to issue the request, etc.

        case paymentCancelled = 2 // user cancelled the request, etc.

geor-kasapidi

PHPhotoLibrary.requestAuthorization(for: .readWrite) { status in
    if status == .authorized {
        var infos: [(CLLocation, Date)] = []
        do {
            let options = PHFetchOptions()
            options.includeHiddenAssets = true
            PHAsset.fetchAssets(with: options).enumerateObjects { asset, _, _ in
                if let location = asset.location,
                   let date = asset.creationDate
                {

geor-kasapidi

private final class AppInfo {
    private struct Keys {
        static let lastKnownAppVersion = "app_data.last_known_app_version"
        static let appWasInBackground = "app_data.app_was_in_background"
        static let appWasTerminated = "app_data.app_was_terminated"
    }

    struct State {
        let appVersionIsChanged: Bool
        let appWasInBackground: Bool

geor-kasapidi

abacus
accordion
acorn
acrobat
adult
adult_cat
agriculture
aircraft
airplane
airport

geor-kasapidi

    func testMultiThreadReadWriteRelations() {
        TestDB.temporaryContainer(store: DataModels.bookLibrary) { pc in
            let group = DispatchGroup()

            let range = 1 ... 100

            try pc.perform { ctx in
                try ctx.insert(BookLibrary.Author(id: .init(), name: "Leo", age: 100))
            }

geor-kasapidi

extension MTLCaptureManager {
    @discardableResult
    func capture<T>(with commandQueue: MTLCommandQueue, _ action: () throws -> T) throws -> T {
        let scope = self.makeCaptureScope(commandQueue: commandQueue)
        
        let descriptor = MTLCaptureDescriptor()
        descriptor.captureObject = scope
        
        try self.startCapture(with: descriptor)
        scope.begin(); defer { scope.end() }

geor-kasapidi

import UIKit
import MediaPlayer

extension Notification.Name {
    static let systemVolumeDidChange = Notification.Name(
        rawValue: "AVSystemController_SystemVolumeDidChangeNotification"
    )
}

class ViewController: UIViewController {

geor-kasapidi

private final class OSUnfairLock {
    private let pointer: os_unfair_lock_t

    init() {
        self.pointer = .allocate(capacity: 1)
        self.pointer.initialize(to: os_unfair_lock())
    }

    deinit {
        self.pointer.deinitialize(count: 1)

geor-kasapidi

// umbrella.h

#pragma once

@import Foundation;

#include "../yoga/Yoga.h"
#include "../yoga/YGMacros.h"
#include "../yoga/YGValue.h"
#include "../yoga/YGEnums.h"

geor-kasapidi

import CoreHaptics

protocol HapticFeedback {
    func generateFeedback()
}

final class Haptic: HapticFeedback {
    private let generator: HapticFeedback

    init() {