Chained method wrapping conditional on the length of the root

[kevinresol]

Preface
Currently I have a snippet being weirdly formatted like this:

writeToFile('out/test.xlsx',
	attendance.byAreaAndWorker(null, null)).next(_ -> 'out/test.xlsx'.stat())
	.next(s -> asserts.assert(s.size > 0))
	.handle(asserts.handle);

Tried a few conditional settings but have no luck. I hope it could be nicer like so:

writeToFile('out/test.xlsx', attendance.byAreaAndWorker(null, null))
	.next(_ -> 'out/test.xlsx'.stat())
	.next(s -> asserts.assert(s.size > 0))
	.handle(asserts.handle);

If there are some conditional tricks that can achieve that, it would be nice to know. Otherwise I suggest the following feature.

Feature Request

I wish to have method chaining wrapping based on the length of the "root" (i.e. the stuff before the first method call).

e.g. {"cond": "rootLength <= n", "value": 10}

root.method().chaining();
// becomes:
root.method()
  .chaining();

very.long.non.method.root.method().chaining();
// becomes:
very.long.non.method.root
  .method()
  .chaining();