| // Copyright (c) 2017, 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. | |
| // @dart = 2.9 | |
| /*Debugger:stepOver*/ | |
| void main() { | |
| for (var i in naturalsTo(2)) { | |
| print(i); | |
| } | |
| } | |
| Iterable<int> naturalsTo(int n) sync* { | |
| /*bl*/ | |
| /*sl:1*/ var k = 0; | |
| /*sl:2*/ /*sl:4*/ /*sl:6*/ while (k < n) { | |
| yield /*bc:3*/ /*bc:5*/ foo(++k); | |
| } | |
| } | |
| int foo(int n) { | |
| return n; | |
| } |