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1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 import "package:expect/expect.dart"; | 5 import "package:expect/expect.dart"; |
6 | 6 |
7 bar() sync* { | 7 bar() sync* { |
8 int i = 1; | 8 int i = 1; |
9 int j = 1; | 9 int j = 1; |
10 while (true) { | 10 while (true) { |
11 yield i; | 11 yield i; |
12 j = i + j; | 12 j = i + j; |
13 i = j - i; | 13 i = j - i; |
14 } | 14 } |
15 } | 15 } |
16 | 16 |
17 foo() sync* { | 17 foo() sync* { |
18 yield* [1, 2, 3]; | 18 yield* [1, 2, 3]; |
19 yield null; | 19 yield null; |
20 yield* bar(); | 20 yield* bar(); |
21 } | 21 } |
22 | 22 |
23 main () async { | 23 main() async { |
24 Expect.listEquals([1, 2, 3, null, 1, 1, 2, 3, 5], foo().take(9).toList()); | 24 Expect.listEquals([1, 2, 3, null, 1, 1, 2, 3, 5], foo().take(9).toList()); |
25 } | 25 } |
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