Formatter doesn't correctly format usage of fluent APIs

[Youssef1313]

using System.Text;

var builder = new StringBuilder();
builder.AppendLine(
builder.AppendLine(
    builder.AppendLine().ToString()).ToString())
            .ToString();

The formatter is happy with the above code.

It shouldn't be happy and should format it to:

using System.Text;

var builder = new StringBuilder();
builder.AppendLine(
    builder.AppendLine(
        builder.AppendLine().ToString()
    ).ToString()
).ToString();

[sharwell]

Note that if any change is made, the expected behavior would be the following (only indentation changed):

using System.Text;

var builder = new StringBuilder();
builder.AppendLine(
    builder.AppendLine(
        builder.AppendLine().ToString()).ToString())
                .ToString();

Overall, I would not expect any change to be made here. There are multiple potentially-valid indentation locations for the second line, and the formatter doesn't have a way to allow several options but only enforce one.

[CyrusNajmabadi]

Overall, I would not expect any change to be made here

Me neither. It would also be highly problematic as suddenly lots of code would start getting formatting warnings.