switch with enum case with struct associated value

switch-enum-struct-case.swift

/*

xcrun swiftc -c switch-enum-struct-case.swift

switch-enum-struct-case.swift:30:36: error: '(size: Size)' does not have a member named 'width'
                  println("rectangle with size \(size.width)x\(size.height)")
                                                 ^    ~~~~~

*/
struct Size {
	var width:Double
	var height:Double
}

enum Shape {
	case Circle(radius:Double)
	case Rectangle(size:Size)
}

func printShape(shape:Shape) {
	switch shape {
		case .Circle(let radius):
			println("circle with radius \(radius)")
		case .Rectangle(let size):
		  // This version does work
		  let s = size
	    println("rectangle with size \(s.width)x\(s.height)")

      // Does not work:
		  println("rectangle with size \(size.width)x\(size.height)")
	}
}