CrystDragon

/// library

/// a type-erased interface
private final class ComparatorHolder<S: Sequence> {

  private typealias Comparator = (S.Element, S.Element) -> Int
  
  private let base: S
  private var comparators: [Comparator] = []
  

CrystDragon

import UIKit

extension UIView {

    func dumpProperties() {
        print("""
        ▿
          - bounds: \(bounds)
          - frame: \(frame)
          - center: \(center)

CrystDragon

// test in playground targeting iOS
import UIKit
import QuartzCore

let sRGBSpace = CGColorSpace(name: CGColorSpace.sRGB)!
let linearSpace = CGColorSpace(name: CGColorSpace.linearSRGB)!

func dumpImageFirstPixel(_ image: UIImage) {
  guard let cgImage = image.cgImage,
    let dataBuffer = cgImage.dataProvider?.data as Data?,

CrystDragon

import UIKit

class MyTextLabel: UIView {
  
  var textLayer = CATextLayer()
  var textStorage: String = "" {
    didSet {
      textLayer.string = textStorage
    }
  }