数组 – 当Element是元组时,Extend Array受限制

当元素是一种元组时,有没有办法扩展数组？

public extension Array where Element: (timeZoneName: String,formattedname: String){

}

This declaration returns 4 errors:

• Statement cannot begin with a closure expression
• Braced block statements is an unused closure
• Expected ‘{‘ in extension
• Expected identifier for type name

我不知道所显示的错误是否准确.
有任何想法吗？

解决方法

Swift 3版 appzYourLife的答案：

extension Sequence where Iterator.Element == Tuple2 {
    func foo() {}
}