blob: fdc7e6864badba42f8b0150023c082bdad85d9e8 [file] [log] [blame]
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
/// @assertion This is true even if the object being spread is a user-defined
/// class that implements [Iterable] but isn't even a subtype of List.
/// @description Checks that [Iterable] object can be spread into the spreadable
/// set.
/// @author
import "dart:collection";
import "../../Utils/expect.dart";
class MyIterable extends IterableBase {
Iterator get iterator => MyIterator();
class MyIterator extends Iterator {
int i = -1;
MyIterator() {}
bool moveNext() {
return ++i < 10;
dynamic get current { return i; }
main() {
Iterable iterable = new MyIterable();
Expect.setEquals(iterable.toList().toSet(), {...iterable});
Iterable? iterable1 = iterable as Iterable?;
Expect.setEquals(iterable.toList().toSet(), {...?iterable1});