Xcode 8 Beta 4 CGColor.components unavailable

Question

Whilst the code below worked previously, it has stopped working in Xcode 8 Beta 4, presumably because the components return was a very un-Swift-y C-array of floats,

Answer 1

extension UIColor {
    var all4Components:(red:CGFloat, green:CGFloat, blue: CGFloat, alpha:CGFloat) {
    let components = self.cgColor.components!
    let red = components[0]
    let green = components[1]
    let blue = components[2]
    let alpha = components[3]
    return (red:red, green:green, blue: blue, alpha:alpha)

    }
}