Clang-format streaming operators (<<)

Clang Frontend
1

Hi,

how can I configure the formatting of streaming operators (<<)? I’ve tried BreakBeforeBinaryOperators and AlignOperands but they don’t have any effect.

Example: clang-format aligns all <<:

my_output_stream_with_a_very_long_name << "fooooooooooooooooooooooooooooooooooooooo"
                                       << "baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaar"
                                       << "baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaazzz";

Normally for streams like cout this is ok. But with streams with a long name it wastes a lot of horizontal space.

I would like something like that:

my_output_stream_with_a_very_long_name
    << "fooooooooooooooooooooooooooooooooooooooo"
    << "baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaar"
    << "baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaazzz";

Is this possible?