<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 - Missing function parameter names messes with AlwaysBreakAfterReturnType and BreakBeforeBraces"
   href="https://bugs.llvm.org/show_bug.cgi?id=45375">45375</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Missing function parameter names messes with AlwaysBreakAfterReturnType and BreakBeforeBraces
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </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>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>rbock@eudoxos.de
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>djasper@google.com, klimek@google.com, llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Consider these two functions:

```
template <typename T, typename U>
XY<T, U>
xy1(X, Y y)
{
  return XY<T, U>{};
}

template <typename T, typename U> 
XY<T, U> 
xy2(X, Y)
{
  return XY<T, U>{};
}
```

Note the absence of parameter names in the second function template.

Using this config

```
BasedOnStyle:  LLVM
AlwaysBreakAfterReturnType: All
AlwaysBreakTemplateDeclarations: Yes
BreakBeforeBraces: Allman
```

the formatter ignores the `AlwaysBreakAfterReturnType`:

```
template <typename T, typename U>
XY<T, U>
xy1(X, Y y)
{
  return XY<T, U>{};
}

template <typename T, typename U>
XY<T, U> xy2(X, Y)
{
  return XY<T, U>{};
}
```

It gets more extreme when dropping the `AlwaysBreakTemplateDeclarations` rule.

```
BasedOnStyle:  LLVM
AlwaysBreakAfterReturnType: All
BreakBeforeBraces: Allman
```

The formatter now yields completely different results for the two functions:

```
template <typename T, typename U>
XY<T, U>
xy1(X, Y y)
{
  return XY<T, U>{};
}

template <typename T, typename U> XY<T, U> xy2(X, Y) { return XY<T, U>{}; }
```

See also: <a href="https://stackoverflow.com/q/60903794/2173029">https://stackoverflow.com/q/60903794/2173029</a></pre>
        </div>
      </p>


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