Can swift exit out of the root closure?
<p>In Swift, if I'm inside of a closure, that is itself inside of another function, is there a way to exit out of the function itself?</p>

<p>Here's an example of what this might look like using closures from the GCDKit library.</p>

<pre><code>func test() {
    GCDQueue.Default.async {
        print("Print me!")
        return //Is there a statement that does this?
    }.notify(.Main) {
        print("Never print me.")
    }
}
</code></pre>