[cfe-dev] clang-format: inconsistency in function arg layout (C++)

[Oleg Smolsky via cfe-dev]

Hi, I've just boiled down an interesting C++ lambda formatting trait and 
would like to clarify the tool's behavior. Consider the following 
snippet (please view with a fixed-width font):

void f() {
   something->One(
       [this] {
         Do1();
         Do2();
       },
       1);
   something->Two(1,
                  [this] {
                    Do1();
                    Do2();
                  },
                  1);
}

There is an inconsistency in the way lambda args are formatted, 
depending on whether it is first (the "One()" call above) or not (the 
"Two()" call above). Is there some internal guide that the tool uses to 
decide between the two layouts? Or is it just an artifact of the 
implementation?

More generally, would you entertain a patch that forces the format one 
way or another? (Perhaps even with a user-defined setting?)

Thanks,
Oleg.