[swift-users] Using 'SomeProtocol' as a concrete type conforming to protocol 'SomeProtocol' is not supported

[Brandon Knope]

I don’t understand why this is a problem

protocol Element {
    
}

enum ElementNode<T: Element> {
    case element(T)
    case empty
}

var childElements = [ElementNode<Element>]()

I need to represent an array of my nodes that could be multiple kinds of elements

Is there a workaround?

Brandon
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.swift.org/pipermail/swift-users/attachments/20161228/d338dc76/attachment.html>