title: How to access functionality from two classes on the same hierarchy level?
body: <p>I have a polymorphism-type question (in fact, I'm not entirely sure this is polymorphism, but it sure seems like it.) Below, there is a diagram of four classes –– the base class <code>UITableViewCell</code>, two subclasses of that, and a subclass of one of the subclasses. </p>
  
  <p>I need the functionality of both of the two subclasses of <code>UITableViewCell</code>, one of which deals with the content view of the cell, while the other handles other actions that can happen ON the cell. One of the subclasses is part of a framework. The <code>My Cell Class</code> basically needs to also "inherit" (or whatever technical word instead of that) the functionality of <code>Cell Subclass A</code> and <code>Cell Subclass B</code>. A + B are Objective-C subclasses; A is ported to Swift through the module availability file built into the framework; B is through the bridging header. I'm using Swift. Any ideas? </p>
  
  <p>Thanks in advance. </p>
  
  <p><img src="https://i.stack.imgur.com/RCZw1.png" alt="Diagram of class hierarchy"></p>