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    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <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: BraceWrapping/AfterCaseLabel default value does not match old behavior"
   href="https://bugs.llvm.org/show_bug.cgi?id=43734">43734</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Clang-format: BraceWrapping/AfterCaseLabel default value does not match old behavior
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>9.0
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </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>jordan.woyak@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>With the addition of the BraceWrapping/AfterCaseLabel option the default
behavior has changed and it seems impossible to produce a .clang-format file
which produces consistent output across versions.

The following .clang-format file produces different output depending on the
clang-format version.

---
BreakBeforeBraces: Custom
BraceWrapping:
  AfterControlStatement: true
  AfterFunction:   true

$ clang-format --version
clang-format version 7.0.0 (tags/RELEASE_700/final)

$ clang-format <<< 'switch (42) { default:{ break; } }'
switch (42)
{
default:
{
  break;
}
}

$ clang-format --version
clang-format version 9.0.0 (tags/RELEASE_900/final)

$ clang-format <<< 'switch (42) { default:{ break; } }'
switch (42) {
default: {
  break;
}
}

Note that adding `  AfterCaseLabel: true` restores the old behavior however
having this line stops older versions of clang-format from running.
`YAML:4:19: error: unknown key 'AfterCaseLabel'`</pre>
        </div>
      </p>


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