marslin1220

struct AStruct {
    let letRefValue = "foo"
    var varRefValue = "bar"
    let letDataValue = 0
    var varDataValue = 0

    func changeLetRefValue() {
        letRefValue = "hello" //< Cannot assign to property: 'letRefValue' is a 'let' constant
    }

marslin1220

/**
 * @protocol XCTMetric
 * Defines a protocol which may be used with the -measureWithMetrics* methods on XCTestCase.
 *
 * @discussion
 * Classes conforming to XCTMetric must also adopt NSCopying, as a unique metric instance is copied for each iteration.
 */
public protocol XCTMetric : NSCopying, NSObjectProtocol {

    

marslin1220

// 1.
@available(iOS 13.0, *)
func testMeasureSPFCascadeScrollingAsAnXtraUser() {
    let options = XCTMeasureOptions()
    options.invocationOptions = [.manuallyStart, .manuallyStop] //< 2.

    // 3.
    measure(metrics: [SlowFrameMetric()], options: options) {
        app.launch()

marslin1220

// 1.
@available(iOS 13.0, *)
func testMeasureSPFCascadeScrollingAsAnXtraUser() {
    // 2.
    measure(metrics: [SlowFrameMetric()]) {
        app.launch()

        // interact with the app, like scrolling or swiping

        app.terminate()

marslin1220

import Foundation
import XCTest
import QuartzCore

// 1.
@available(iOS 11.2.0, *)
class SlowFrameMetric: NSObject, XCTMetric {
    private static let slowFrameThresholdInMiliSecond = 0.017
    private let frameTimeintervalCollector = FrameTimeintervalCollector()
    

marslin1220

import Foundation

class FrameTimeintervalCollector {
    private(set) lazy var displayLink: CADisplayLink = { //< 1.
        let displayLink = CADisplayLink(target: self, selector: #selector(tick(displayLink:)))
        displayLink.add(to: .main, forMode: .default)
        return displayLink
    }()
    private(set) var frameTickTimeSet = Set<FrameTickTime>() //< 2.
    private var lastTimestamp: TimeInterval = 0

marslin1220

public class DramaInfo: NSObject, Codable {
    @objc public let currentEpisode: Int
    @objc public let episodeID: String
    @objc public let name: String
    @objc public let viewCount: Int
    @objc public let totalEpisode: Int

    enum CodingKeys: String, CodingKey {
        case currentEpisode = "currentEps"
        case episodeID = "id"

marslin1220

#!/usr/bin/swift
//
//  SelfPrinter.swift
//  SelfPrinter
//
//  Created by Lin Cheng Lung on 2018/6/25.
//  Copyright © 2018 Lin Cheng Lung. All rights reserved.
//

import Foundation

marslin1220

#!/bin/bash

# git pre-commit hook that runs an clang-format stylecheck.
# Features:
#  - abort commit when commit does not comply with the style guidelines
#  - create a patch of the proposed style changes

# modifications for clang-format by [email protected]
# This file is part of a set of unofficial pre-commit hooks available
# at github.

marslin1220

import Foundation
import PlaygroundSupport

URLCache.shared = URLCache(memoryCapacity: 0, diskCapacity: 0, diskPath: nil)
PlaygroundPage.current.needsIndefiniteExecution = true

// Refer to the example: https://grokswift.com/simple-rest-with-swift/
let todoEndpoint: String = "https://jsonplaceholder.typicode.com/todo/1"
guard let url = URL(string: todoEndpoint) else {
    print("Error: cannot create URL")