Dart. Idea. How to prevent formatting from merging into single line

Question

I'm trying to set new formatting for me. Because of this problem.

Before auto format.

After auto format.

I checked Idea Settings. But seems there are not too many settings for Dart. I have removed all the setting with line merging. But above issue still exist. For example. This setting, which should work, but it doesn't.

Any suggestion?

Solution

End each line you don't want to be affected by formatting with "//":

[1, 2, 3]
      .map((a) => 0) //
      .map((a) => 1); //
var x = [ 
  0, 1, 2, //
  3, 4, 5 //
];