title: Self refence within class methods in Itcl
body: <p>Is it possible to refer to current object within the member method of a class.
  Kindly consider the code below:</p>
  
  <pre><code>itcl::class widget {
     private variable inst
  
     method ChildCount {} {
         return [llength [keylkeys inst children]]
     }
     method AddChild {childWidget} {
         inst children.[ChildCount] $childWidget
         # ***HOW TO GET THIS WORKING?***
         $childWidget SetParent $self
     }
  }
  </code></pre>
  
  <p>What could be the equivalent for <code>$self</code> in <code>$childWidget SetParent $self</code>?</p>