| // Copyright (c) 2016, 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 Execution of a statement s of the form yield e; proceeds as |
| /// follows: |
| /// First, the expression e is evaluated to an object o. If the enclosing |
| /// function m is marked async* and the stream u associated with m has been |
| /// paused, then execution of m is suspended until u is resumed or canceled. |
| /// Next, o is added to the iterable or stream associated with the immediately |
| /// enclosing function. |
| /// ... |
| /// If the enclosing function m is marked sync* then: |
| /// - Execution of the function m immediately enclosing s is suspended until |
| /// the nullary method moveNext() is invoked upon the iterator used to initiate |
| /// the current invocation of m. |
| /// - The current call to moveNext() returns true. |
| /// |
| /// @description Check that object o is added to iterable associated with the |
| /// immediately enclosing function. |
| /// |
| /// @author a.semenov@unipro.ru |
| |
| import '../../../../Utils/expect.dart'; |
| |
| Iterable<int> generator(Iterable<int> iterable) sync* { |
| for (int o in iterable) { |
| yield o; |
| } |
| } |
| |
| main() { |
| List<int> data = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; |
| List<int> log = []; |
| Iterable<int> iterable = generator(data); |
| Iterator<int> it = iterable.iterator; |
| while (it.moveNext()) { |
| log.add(it.current); |
| } |
| Expect.listEquals(data, log); |
| } |