pofat

protocol Sequence {
    associatedtype Element
    associatedtype Iterator : IteratorProtocol where Iterator.Element == Element

    func makeIterator() -> Iterator
}

pofat

import Foundation
import RxSwift


enum HTTPMethod: String {
    case POST, GET
}


// An object

pofat

func getProcessStartTime() -> TimeInterval {
    let pid = ProcessInfo.processInfo.processIdentifier
    var procInfo = kinfo_proc()
    var cmd: [Int32] = [CTL_KERN, KERN_PROC, KERN_PROC_PID, pid]
    var size = MemoryLayout.stride(ofValue: procInfo)
    if sysctl(&cmd, UInt32(cmd.count), &procInfo, &size, nil, 0) == 0 {
        // tv_sec is timestamp measured in second; tv_usec is the rest fraction part in microsecond
        return Double(procInfo.kp_proc.p_un.__p_starttime.tv_sec) * 1000.0 + Double(procInfo.kp_proc.p_un.__p_starttime.tv_usec) / 1000.0
    } else {
        print("Can't get information of process \(pid)")

pofat

import Foundation
import RxSwift

enum HTTPMethod: String {
    case POST, GET
}

// protocol of request, should define endpoint, http method, params and response type
protocol Request {
    var path: String { get }

pofat

/*----------------------------------------------------*/
#pragma mark - XCTAsserts
/*----------------------------------------------------*/

XCTAssert(expression, format...);
XCTAssertTrue(expression, format...);
XCTAssertFalse(expression, format...);
XCTAssertEqual(expression1, expression2, format...);
XCTAssertNotEqual(expression1, expression2, format...);
XCTAssertNil(expression, format...);

pofat

import ReactiveSwift
import Result

class MapViewController: UIViewController {
  
    private let (didLoadSingal, didLoadObserver) = Signal<Bool, NoError>.pipe()
    private let (didDragSignal, didDragObserver) = Signal<Bool, NoError>.pipe()
  
    override func viewDidLoad() {
        super.viewDidLoad()

pofat

class MapViewController: UIViewController {
    var isLoaded = false
}

extension MapViewController: MKMapViewDelegate {
    func mapViewDidChangeVisibleRegion(_ mapView: MKMapView) {
        if isLoaded { 
            mapDidDrag()
        }
     }

pofat

// From https://github.com/devxoul/Then/blob/master/Sources/Then/Then.swift
// It's easy to move them into your codebase

import Foundation

public protocol Then {}

extension Then where Self: Any {
    /// Makes it available to set properties with closures just after initializing.
    ///

pofat

/*
 From: https://twitter.com/johnsundell/status/948513364015288320?utm_content=buffer67c28&utm_medium=social&utm_source=facebook.com&utm_campaign=buffer
 */

extension UIView {
    func add(_ subviews: UIView...) {
        subviews.forEach(addSubview)
    }
}

pofat

extension Float {
    var toInt32: Int32 {
        // Directly bitwise copy and expressed as Int32
        return Int32(bitPattern: self.bitPattern)
    }
}

lef f1 = Float(338_556)
let f2 = f1 + f1.ulp