title: Shorthand dictionary with named tuples in Swift
body: <p>It seems like you can't use named tuples in the shorthand notation of Dictionary. Is that so?
  E.g.:<br></p>
  
  <pre><code>var dt = Dictionary&lt;Int, (x:Double, y:Double)&gt;()
  var dtShort = [Int: (Double, Double)]()
  var dtShortNamed = [Int: (x:Double, y:Double)]()
  </code></pre>
  
  <p>The first two lines work, the third triggers an error "Expected member name or constructor call after type name"<br><br>
  Is this correct, or am I missing something?</p>