How to control clang-format indentation of chained method calls?

Question

I want the results to look like this:

auto foo = FooBuilder()
    .WithSomething()
    .WithSomethingElse()
    .Build();

but instead clang-format formats it like this:

auto foo = FooBuilder()
               .WithSomething()
               .WithSomethingElse()
               .Build();

I want the chained calls to be indented relative to the beginning of the preceding line, not relative to the FooBuilder() call. I don't see anything in the clang-format options that control this. Setting ContinuationIndentWidth does not help. Any ideas?

Answer 1

Unfortunately, this appears to be not possible. The only option I have found that affects this at all is ContinuationIndentWidth, which, as you said, doesn't do what you want.

What I personally would do is use the following regex to find chained method calls that have been broken up:

\)\s+\.

It will match a closing parenthesis, 1 or more whitespace characters (but not 0), and a period. You probably don't have too many instances of this, so you could just fix them manually, and then disable clang-format for those lines so it leaves it alone in the future:

// clang-format off

auto friggin_cool_object = SuperCoolBuilder().do_what_i_want()
    .figure()
    .out()
    .the()
    .params()
    .too();

// clang-format on