Extending typed Arrays (of primitive types like Bool) in Swift 3?

Question

Previously in Swift 2.2 I\'m able to do:

extension _ArrayType where Generator.Element == Bool{
    var allTrue : Bool{
        return !self.contains(false)
    }         


        

Answer 1

Apple replaced _ArrayType with _ArrayProtocol in Swift 3.0 (see Apple's Swift source code on GitHub) so you can do the same thing you did in Swift 2.2 by doing the following:

extension _ArrayProtocol where Iterator.Element == Bool {
    var allTrue : Bool { return !self.contains(false) }
}