[swift-evolution] Protocol declaration inside a class

[Виктор Шаманов]

Happy Friday everyone!

I wonder why the protocol declaration should be only at the file scope?
Is this a design choice or limitation of the current implementation?

I think, the ability of declaring protocols inside the other declarations
would improve readability and code-organization.

For example, instead of:

protocol UITableViewDelegate {
...
}

class UITableView {
    var delegate: UITableViewDelegate?
}


we would write:

class UITableView {

    protocol Delegate {
    ...
    }


    var delegate: Delegate?
}


Thanks
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