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      <base href="https://bugs.webkit.org/" />
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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - JSSegmentedVariableObject and its subclasses should have a sane destruction story"
   href="https://bugs.webkit.org/show_bug.cgi?id=167193">167193</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>JSSegmentedVariableObject and its subclasses should have a sane destruction story
          </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>JavaScriptCore
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>fpizlo&#64;apple.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Right now, JSSegmentedVariableObjects' subclasses install finalizers that call destroy. They do this in random ways, which sometimes result in JSSegmentedVariableObject::~JSSegmentedVariableObject executing more than once (which works because of the way that ~SegmentedVector is written). Maybe this works now, but it's a disaster waiting to happen.

Fortunately we can now just give those things their own Subspace and teach it its own protocol of destruction.</pre>
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