<html>
    <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] C# attributes and inheritance cause issues with formatting"
   href="https://bugs.llvm.org/show_bug.cgi?id=44340">44340</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[clang-format] C# attributes and inheritance cause issues with formatting
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>Windows NT
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>enhancement
          </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>mydeveloperday@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>The following

clang-format version 10.0.0 (<a href="https://github.com/llvm/llvm-project">https://github.com/llvm/llvm-project</a>
8b5f6c16476c7a8f50b660fb6e1b549759a783b6)

namespace Foo
{
    [Test]
    public class Bar : Base
    {
        public Bar()
        {
        }
    }

    [Test]
    public class Baz
    {
        public Baz()
        {
        }
    }
}

Gets formatted as:

namespace Foo
{
    [Test]
    public class Bar : Base{ public Bar(){} }

                       [Test]
                       public class Baz
    {
        public Baz()
        {
        }
    }
}


If I remove the ': Base' its fine

namespace Foo
{
    [Test]
    public class Bar
    {
        public Bar()
        {
        }
    }

    [Test]
    public class Baz
    {
        public Baz()
        {
        }
    }
}

This is not the case if the second class 'Baz' does not have an attribute

The smallest example that shows this is

namespace Foo
{
    public class Bar : Base
    {
    }

    [Test]
    public class Baz
    {
        public Baz()
        {
        }
    }
}

With the following .clang-format gives

---
Language: CSharp
BasedOnStyle: Microsoft

IndentWidth:     4
NamespaceIndentation: All
...

namespace Foo
{
public class Bar : Base{}

                   [Test]
                   public class Baz
{
    public Baz()
    {
    }
}
}</pre>
        </div>
      </p>


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