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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - MathML headers: improve inheritance and visibility"
   href="https://bugs.webkit.org/show_bug.cgi?id=159336">159336</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>MathML headers: improve inheritance and visibility
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>MathML
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>fred.wang&#64;free.fr
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>alex&#64;igalia.com
          </td>
        </tr>

        <tr>
          <th>Depends on</th>
          <td>153991
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Another small refactoring we can do after <a href="https://trac.webkit.org/wiki/MathML/Early_2016_Refactoring#Phase1">https://trac.webkit.org/wiki/MathML/Early_2016_Refactoring#Phase1</a> is improving the inheritance and visibility in MathML element and renderer classes. The hierarchy as changed a lot and these are not always respected:

* Use final for class that are not extended.
* Use final instead of override for virtual members that are not overridden by derived classes.
* Try and reduce the visibility of function members to private or protected as appropriate.</pre>
        </div>
      </p>
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