Function and class expression assignment

[MichaReiser]

Rome breaks any function or class expression assignment over at least two lines if their bodies aren't empty. Prettier formats them on a single line (as one would expect). Playground

Input

// Assigning to function/classes with an empty yields the desired formatting
a = function() {}
a = class {}

// Assigning to a function/class with a non-empty body groups the whole assignment expression.
a = function () {
  console.log(1)
};

extraLongLeftHandSideLetsSeeHowPrettierBreaksThatAcrossMultipleLinesStillNotLongEnoughMustBeLongerAndLora = function () {
  console.log(1)
};

a = function extraLongLeftHandSideLetsSeeHowPrettierBreaksThatAcrossMultipleLinesStillNotLongEnoughMustBeLongerAndara () {
  console.log(1)
};

a = class {
  prop;
}

// Function with non-empty body is printed on the next line
A.prototype.f = function() {
  console.log(1)
}

Prettier

// Assigning to function/classes with an empty yields the desired formatting
a = function () {};
a = class {};

// Assigning to a function/class with a non-empty body groups the whole assignment expression.
a = function () {
  console.log(1);
};

extraLongLeftHandSideLetsSeeHowPrettierBreaksThatAcrossMultipleLinesStillNotLongEnoughMustBeLongerAndLora =
  function () {
    console.log(1);
  };

a =
  function extraLongLeftHandSideLetsSeeHowPrettierBreaksThatAcrossMultipleLinesStillNotLongEnoughMustBeLongerAndara() {
    console.log(1);
  };

a = class {
  prop;
};

// Function with non-empty body is printed on the next line
A.prototype.f = function () {
  console.log(1);
};

Rome

// Assigning to function/classes with an empty yields the desired formatting
a = function () {};
a = class {};

// Assigning to a function/class with a non-empty body groups the whole assignment expression.
a =
  function () {
    console.log(1);
  };

extraLongLeftHandSideLetsSeeHowPrettierBreaksThatAcrossMultipleLinesStillNotLongEnoughMustBeLongerAndLora =
  function () {
    console.log(1);
  };

a =
  function extraLongLeftHandSideLetsSeeHowPrettierBreaksThatAcrossMultipleLinesStillNotLongEnoughMustBeLongerAndara() {
    console.log(1);
  };

a =
  class {
    prop;
  };

// Function with non-empty body is printed on the next line
A.prototype.f =
  function () {
    console.log(1);
  };

Expected

Rome formats class and function expressions on a single line if there name fits on a single line.

[MichaReiser]

I'm currently looking into formatting classes that should help with this.

[ematipico]

This is now solved.