library /*isNonNullableByDefault*/;
import self as self;
import "dart:core" as core;

static method useAddAll() → void {
  dynamic dynamicList1 = <core::int>[0, 1, 2];
  dynamic dynamicList2 = <core::num>[3, 4, 5];
  dynamic dynamicList3 = <core::int?>[6, 7, 8];
  core::Iterable<core::int> iterableIntList = <core::int>[9, 10, 11];
  core::List<core::int> intList = <core::int>[12, 13, 14];
  core::List<core::int> list1 = block {
    final core::List<core::int> #t1 = <core::int>[];
    for (final dynamic #t2 in dynamicList1 as{TypeError,ForDynamic,ForNonNullableByDefault} core::Iterable<dynamic>) {
      final core::int #t3 = #t2 as{TypeError,ForNonNullableByDefault} core::int;
      #t1.{core::List::add}{Invariant}(#t3);
    }
    for (final dynamic #t4 in dynamicList2 as{TypeError,ForDynamic,ForNonNullableByDefault} core::Iterable<dynamic>) {
      final core::int #t5 = #t4 as{TypeError,ForNonNullableByDefault} core::int;
      #t1.{core::List::add}{Invariant}(#t5);
    }
    for (final dynamic #t6 in dynamicList3 as{TypeError,ForDynamic,ForNonNullableByDefault} core::Iterable<dynamic>) {
      final core::int #t7 = #t6 as{TypeError,ForNonNullableByDefault} core::int;
      #t1.{core::List::add}{Invariant}(#t7);
    }
    #t1.{core::List::addAll}{Invariant}(iterableIntList);
    #t1.{core::List::addAll}{Invariant}(intList);
  } =>#t1;
  self::expect(core::List::generate<core::int>(15, (core::int i) → core::int => i), list1);
  core::List<core::num> list2 = block {
    final core::List<core::num> #t8 = <core::num>[];
    for (final dynamic #t9 in dynamicList1 as{TypeError,ForDynamic,ForNonNullableByDefault} core::Iterable<dynamic>) {
      final core::num #t10 = #t9 as{TypeError,ForNonNullableByDefault} core::num;
      #t8.{core::List::add}{Invariant}(#t10);
    }
    for (final dynamic #t11 in dynamicList2 as{TypeError,ForDynamic,ForNonNullableByDefault} core::Iterable<dynamic>) {
      final core::num #t12 = #t11 as{TypeError,ForNonNullableByDefault} core::num;
      #t8.{core::List::add}{Invariant}(#t12);
    }
    for (final dynamic #t13 in dynamicList3 as{TypeError,ForDynamic,ForNonNullableByDefault} core::Iterable<dynamic>) {
      final core::num #t14 = #t13 as{TypeError,ForNonNullableByDefault} core::num;
      #t8.{core::List::add}{Invariant}(#t14);
    }
    #t8.{core::List::addAll}{Invariant}(iterableIntList);
    #t8.{core::List::addAll}{Invariant}(intList);
  } =>#t8;
  self::expect(core::List::generate<core::num>(15, (core::int i) → core::int => i), list2);
}
static method useAddAllNullable() → void {
  dynamic dynamicList1 = <core::int>[0, 1, 2];
  dynamic dynamicList2 = <core::num>[3, 4, 5];
  dynamic dynamicList3 = <core::int?>[6, 7, 8];
  core::Iterable<core::int>? iterableIntList = true ?{core::List<core::int>?} <core::int>[9, 10, 11] : null;
  core::List<core::int>? intList = true ?{core::List<core::int>?} <core::int>[12, 13, 14] : null;
  core::List<core::int> list1 = block {
    final core::List<core::int> #t15 = <core::int>[];
    final core::Iterable<dynamic>? #t16 = dynamicList1 as{TypeError,ForDynamic,ForNonNullableByDefault} core::Iterable<dynamic>?;
    if(!#t16.{core::Object::==}(null))
      for (final dynamic #t17 in #t16{core::Iterable<dynamic>}) {
        final core::int #t18 = #t17 as{TypeError,ForNonNullableByDefault} core::int;
        #t15.{core::List::add}{Invariant}(#t18);
      }
    final core::Iterable<dynamic>? #t19 = dynamicList2 as{TypeError,ForDynamic,ForNonNullableByDefault} core::Iterable<dynamic>?;
    if(!#t19.{core::Object::==}(null))
      for (final dynamic #t20 in #t19{core::Iterable<dynamic>}) {
        final core::int #t21 = #t20 as{TypeError,ForNonNullableByDefault} core::int;
        #t15.{core::List::add}{Invariant}(#t21);
      }
    final core::Iterable<dynamic>? #t22 = dynamicList3 as{TypeError,ForDynamic,ForNonNullableByDefault} core::Iterable<dynamic>?;
    if(!#t22.{core::Object::==}(null))
      for (final dynamic #t23 in #t22{core::Iterable<dynamic>}) {
        final core::int #t24 = #t23 as{TypeError,ForNonNullableByDefault} core::int;
        #t15.{core::List::add}{Invariant}(#t24);
      }
    final core::Iterable<core::int>? #t25 = iterableIntList;
    if(!#t25.{core::Object::==}(null))
      #t15.{core::List::addAll}{Invariant}(#t25{core::Iterable<core::int>});
    final core::Iterable<core::int>? #t26 = intList;
    if(!#t26.{core::Object::==}(null))
      #t15.{core::List::addAll}{Invariant}(#t26{core::Iterable<core::int>});
  } =>#t15;
  self::expect(core::List::generate<core::int>(15, (core::int i) → core::int => i), list1);
  core::List<core::num> list2 = block {
    final core::List<core::num> #t27 = <core::num>[];
    final core::Iterable<dynamic>? #t28 = dynamicList1 as{TypeError,ForDynamic,ForNonNullableByDefault} core::Iterable<dynamic>?;
    if(!#t28.{core::Object::==}(null))
      for (final dynamic #t29 in #t28{core::Iterable<dynamic>}) {
        final core::num #t30 = #t29 as{TypeError,ForNonNullableByDefault} core::num;
        #t27.{core::List::add}{Invariant}(#t30);
      }
    final core::Iterable<dynamic>? #t31 = dynamicList2 as{TypeError,ForDynamic,ForNonNullableByDefault} core::Iterable<dynamic>?;
    if(!#t31.{core::Object::==}(null))
      for (final dynamic #t32 in #t31{core::Iterable<dynamic>}) {
        final core::num #t33 = #t32 as{TypeError,ForNonNullableByDefault} core::num;
        #t27.{core::List::add}{Invariant}(#t33);
      }
    final core::Iterable<dynamic>? #t34 = dynamicList3 as{TypeError,ForDynamic,ForNonNullableByDefault} core::Iterable<dynamic>?;
    if(!#t34.{core::Object::==}(null))
      for (final dynamic #t35 in #t34{core::Iterable<dynamic>}) {
        final core::num #t36 = #t35 as{TypeError,ForNonNullableByDefault} core::num;
        #t27.{core::List::add}{Invariant}(#t36);
      }
    final core::Iterable<core::num>? #t37 = iterableIntList;
    if(!#t37.{core::Object::==}(null))
      #t27.{core::List::addAll}{Invariant}(#t37{core::Iterable<core::num>});
    final core::Iterable<core::num>? #t38 = intList;
    if(!#t38.{core::Object::==}(null))
      #t27.{core::List::addAll}{Invariant}(#t38{core::Iterable<core::num>});
  } =>#t27;
  self::expect(core::List::generate<core::num>(15, (core::int i) → core::int => i), list2);
}
static method main() → dynamic {
  self::useAddAll();
  self::useAddAllNullable();
}
static method expect(core::List<dynamic> list1, core::List<dynamic> list2) → void {
  if(!list1.{core::List::length}.{core::num::==}(list2.{core::List::length})) {
    throw "Unexpected length. Expected ${list1.{core::List::length}}, actual ${list2.{core::List::length}}.";
  }
  for (core::int i = 0; i.{core::num::<}(list1.{core::List::length}); i = i.{core::num::+}(1)) {
    if(!list1.{core::List::[]}(i).{core::Object::==}(list2.{core::List::[]}(i))) {
      throw "Unexpected element at index ${i}. Expected ${list1.{core::List::[]}(i)}, actual ${list2.{core::List::[]}(i)}.";
    }
  }
}