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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-tidy: Fix unnecessary copy of AtomicString each time one is logged"
   href="https://bugs.webkit.org/show_bug.cgi?id=192710">192710</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>clang-tidy: Fix unnecessary copy of AtomicString each time one is logged
          </td>
        </tr>

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

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

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </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>Web Template Framework
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned@lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>ddkilzer@webkit.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>eric.carlson@apple.com
          </td>
        </tr></table>
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        <pre>Running `clang-tidy -header-filter=.* -checks='-*,performance-*,-performance-noexcept-*' ...` on WebCore source files found this unnecessary object copy:

$BUILD_DIR/Release/usr/local/include/wtf/Logger.h:47:173: warning: the parameter 'argument' is copied for each invocation but only used as a const reference; consider making it a const reference [performance-unnecessary-value-param]
    template<typename U = T> static typename std::enable_if<std::is_same<typename std::remove_reference<U>::type, AtomicString>::value, String>::type toString(AtomicString argument) { return argument.string(); }
                                                                                                                                                                            ^
                                                                                                                                                               const       &</pre>
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      </p>


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