<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 - [Format/ObjC] Improve handling of block parameter arguments"
   href="https://bugs.llvm.org/show_bug.cgi?id=50423">50423</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[Format/ObjC] Improve handling of block parameter arguments
          </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>All
          </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>bhamiltoncx@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>Objective-C block parameters to method definitions currently break after the
opening paren:

```
% clang-format -style=Google test.m
@property(nonatomic, readonly, nullable) NSString *AAAAAAAAAAA;

- (instancetype)AAAAAAAAAAAAAAAAAAAAAAAAAAA:(id)AAAAAA
             
AAAAAAAAAAAAAAAAAAAAAAAAAAAAA:(AAAAAAAAAAAAAAAA<AAAAAAAAAAAAAAAAAAAAAAAAA> *
(^)(
                                               
void))AAAAAAAAAAAAAAAAAAAAAAAAAAAAA {
}
```

I think it's OK to split the return type from the rest, but it looks odd to
split between the
`(^)(` and the parameter type `void)`. Ideally putting everyone on one line
would work:

```
@property(nonatomic, readonly, nullable) NSString *AAAAAAAAAAA;

- (instancetype)AAAAAAAAAAAAAAAAAAAAAAAAAAA:(id)AAAAAA
              AAAAAAAAAAAAAAAAAAAAAAAAAAAAA:
    (AAAAAAAAAAAAAAAA<AAAAAAAAAAAAAAAAAAAAAAAAA>
*(^)(void))AAAAAAAAAAAAAAAAAAAAAAAAAAAAA {
}
```</pre>
        </div>
      </p>


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