Merge #21221: [tools] Allow argument/parameter bin packing in clang-format

876ac3f6b62087fb5c22b0a477751895915d47b8 [tools] Allow argument/parameter bin packing in clang-format (John Newbery)

Pull request description:

  clang-format documentation for BinPackArguments:

  If `false`, a function call’s arguments will either be all on the same line or will have one line each.

  ```
  true:
  void f() {
    f(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaa,
      aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);
  }

  false:
  void f() {
    f(aaaaaaaaaaaaaaaaaaaa,
      aaaaaaaaaaaaaaaaaaaa,
      aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);
  }
  ```

  https://clang.llvm.org/docs/ClangFormatStyleOptions.html#configurable-format-style-options

  There's no reason to forbid this format. Having multiple arguments or parameters per line can be just as readable as having one per line (and is certainly more readable than having extremely long lines).

ACKs for top commit:
  laanwj:
    ACK 876ac3f6b62087fb5c22b0a477751895915d47b8
  MarcoFalke:
    review ACK 876ac3f6b62087fb5c22b0a477751895915d47b8
  vasild:
    ACK 876ac3f6b62087fb5c22b0a477751895915d47b8

Tree-SHA512: 7c401b4551b458c83dd70883860788b4a60e08a5399171fef27a2f5fdc6b933f6454fe0d396c32d826e3ab537791329da3275ae9b5e9ad36630a6dc2c167e88f

1 files changed, 2 insertions, 1 deletions

diff --git a/src/.clang-format b/src/.clang-format
index ef7a0ef5c7..a69c57f3e0 100644
--- a/src/.clang-format
+++ b/src/.clang-format
@@ -11,7 +11,8 @@ AllowShortIfStatementsOnASingleLine: true
 AllowShortLoopsOnASingleLine: false
 AlwaysBreakBeforeMultilineStrings: false
 AlwaysBreakTemplateDeclarations: true
-BinPackParameters: false
+BinPackArguments: true
+BinPackParameters: true
 BreakBeforeBinaryOperators: false
 BreakBeforeBraces: Custom
 BraceWrapping: