| // Copyright (c) 2019, 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 The upwards inference element type of a for list element is the |
| /// type of the body element. |
| /// |
| /// @description Checks that the upwards inference element type of a for list |
| /// element is the type of the body element. |
| /// @author sgrekhov@unipro.ru |
| |
| import "../../Utils/expect.dart"; |
| |
| class A {} |
| class B extends A {} |
| class C extends B {} |
| |
| main() { |
| var i = 1; |
| var list1 = [ |
| new C(), |
| for (int i = 0; i < 2; i++) |
| new B() |
| ]; |
| Expect.isTrue(list1 is List<B>); |
| |
| var list2 = [ |
| "", |
| for (int i = 0; i < 2; i++) 1, |
| ]; |
| Expect.isTrue(list2 is List<Object>); |
| |
| var list3 = [ |
| 1, |
| for (var i in []) 3.14 |
| ]; |
| Expect.isTrue(list3 is List<num>); |
| } |