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      <base href="https://bugs.llvm.org/">
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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 - clang-format repeatedly adds new comment line"
   href="https://bugs.llvm.org/show_bug.cgi?id=37875">37875</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>clang-format repeatedly adds new comment line
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>6.0
          </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>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Formatter
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>dr.khong@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>djasper@google.com, klimek@google.com, llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=20446" name="attach_20446" title="format file to reproduce the issue">attachment 20446</a> <a href="attachment.cgi?id=20446&action=edit" title="format file to reproduce the issue">[details]</a></span>
format file to reproduce the issue

When instructing clang-format to comment the closing bracket of a namespace
with the namespace name, in some situations with very long namespace names,
that comment is added repeatedly when re-formatting code.


Example:
*******

namespace protobuf_tensorflow_2fcore_2fframework_2fresource_5fhandle_2eproto
{
struct StaticDescriptorInitializer {
}
}

After formatting 5 times:
************************
namespace protobuf_tensorflow_2fcore_2fframework_2fresource_5fhandle_2eproto
{
struct StaticDescriptorInitializer {
}
} // namespace
  // protobuf_tensorflow_2fcore_2fframework_2fresource_5fhandle_2eproto
  // protobuf_tensorflow_2fcore_2fframework_2fresource_5fhandle_2eproto
  // protobuf_tensorflow_2fcore_2fframework_2fresource_5fhandle_2eproto
  // protobuf_tensorflow_2fcore_2fframework_2fresource_5fhandle_2eproto
  // protobuf_tensorflow_2fcore_2fframework_2fresource_5fhandle_2eproto


.clang-format is attached.

Setting FixNamespaceComments: false fixes the issue.</pre>
        </div>
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