Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS Enumerations and Optionals in Swift Introduction to Enumerations Enum Methods

Clark Reilly
Clark Reilly
6,204 Points

Why won't this compile?

The preview shows no compiler errors.

buttons.swift
// Example of UIBarButtonItem instance
// let someButton = UIBarButtonItem(title: "A Title", style: .plain, target: nil, action: nil)

enum BarButton {
    case done(title: String)
    case edit(title: String)

    func button()->UIBarButtonItem {
        switch self {
      case .done(let title):
        return UIBarButtonItem(title: title, style: UIBarButtonItemStyle.done, target: nil, action: nil)
      case .edit(let title):
        return UIBarButtonItem(title: title, style: UIBarButtonItemStyle.plain, target: nil, action: nil)
      }
    }
}

let done = BarButton.done(title: "Save")
let button = done.button

1 Answer

Alex Koumparos
seal-mask
.a{fill-rule:evenodd;}techdegree
Alex Koumparos
Python Development Techdegree Student 36,862 Points

Hi Clark,

Your problem is on your very last line. You are assigning the button method to the button constant when you should be assigning the result of calling the method to your constant button.

Cheers

Alex

Clark Reilly
Clark Reilly
6,204 Points

Figured it’d be something dumb like that. thanks!