| // 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 constant expression is an expression whose value can never |
| * change, and that can be evaluated entirely at compile time. |
| * A constant expression is one of the following: |
| * . . . |
| * • An expression of the form e.length where e is a constant expression that |
| * evaluates to a string value. |
| * @description Checks that an expression of the form e.length cannot be used |
| * to initialize a constant variable if e isn't constant expression. |
| * @compile-error |
| * @Issue #24940 |
| * @author ngl@unipro.ru |
| */ |
| |
| import '../../../Utils/expect.dart'; |
| |
| const Object o = "ab" + "cd"; |
| const l = o.toString().length; |
| |
| main() { |
| Expect.isTrue(l is int); |
| } |