| /* |
| * Copyright (c) 2011, 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 A for statement of the form for (varOrType? id in e) s |
| * is equivalent to the following code: |
| * var n0 = e.iterator; |
| * while (n0.moveNext()) { |
| * varOrType? id = n0.current; |
| * s |
| * } |
| * where n0 is an identifier that does not occur anywhere in the program. |
| * @description Checks that s is not evaluated if e is empty. |
| * @author vasya |
| * @reviewer rodionov |
| * @reviewer iefremov |
| */ |
| import "../../../Utils/expect.dart"; |
| |
| void check(var e) { |
| var b = false; |
| for (var id in e) { |
| b = true; |
| } |
| Expect.isFalse(b); |
| } |
| |
| main() { |
| check(new List()); |
| check([]); |
| check(new Set()); |
| } |
