library;
import self as self;
import "dart:core" as core;
import "dart:async" as asy;

class Node extends core::Object {
  final field core::List<self::Node> nested;
  final field core::String name;
  constructor •(core::String name, [core::List<self::Node> nested = null]) → void
    : self::Node::name = name, self::Node::nested = nested, super core::Object::•() {}
  method toString() → core::String
    return "<${this.{self::Node::name}}:[${let final dynamic #t1 = this.{self::Node::nested} in #t1.==(null) ? null : #t1.join(", ")}]>";
  method toSimpleString() → dynamic {
    dynamic tmp = let final dynamic #t2 = this.{self::Node::nested} in #t2.==(null) ? null : #t2.map((dynamic child) → dynamic => child.toSimpleString());
    return "${this.{self::Node::name}} ${let final dynamic #t3 = tmp in #t3.==(null) ? null : #t3.join(" ")}".trim();
  }
}
static method main() → void async {
  core::String expected = "1 2 3 4 5 6 7 8 9 10";
  self::Node node = new self::Node::•("1", <dynamic>[new self::Node::•("2", <dynamic>[]), await asy::Future::value<dynamic>(new self::Node::•("3", <dynamic>[await asy::Future::value<dynamic>(new self::Node::•("4", <dynamic>[new self::Node::•("5", <dynamic>[await asy::Future::value<dynamic>(new self::Node::•("6", <dynamic>[await asy::Future::value<dynamic>(new self::Node::•("7", <dynamic>[]))])), await asy::Future::value<dynamic>(new self::Node::•("8", <dynamic>[])), await asy::Future::value<dynamic>(new self::Node::•("9", <dynamic>[]))])]))])), await asy::Future::value<dynamic>(new self::Node::•("10", <dynamic>[]))]);
  core::String actual = node.toSimpleString();
  core::print(actual);
  if(!actual.==(expected)) {
    throw "Expected '${expected}' but got '${actual}'";
  }
}