| /* |
| * 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 A write to a field or variable which is marked final and late is a |
| * runtime error unless the field or variable was declared with no initializer |
| * expression, and there have been no previous writes to the field or variable |
| * (including via an initializing formal or an initializer list entry). |
| * |
| * @description Check that if a final late variable is declared with no |
| * initializer expression, and there have been no previous writes to it, then |
| * write attempt to this field or variable is not an error, but the second |
| * attempt of write to it is a runtime error |
| * @author sgrekhov@unipro.ru |
| * @issue 39802 |
| */ |
| // SharedOptions=--enable-experiment=non-nullable |
| // Requirements=nnbd-strong |
| import "../../Utils/expect.dart"; |
| |
| class C { |
| static late final String s; |
| late final String v; |
| } |
| |
| late final String g; |
| |
| main() { |
| C.s = "No"; |
| Expect.equals("No", C.s); |
| Expect.throws(() {C.s = "Lily was here";}); |
| |
| C c = new C(); |
| c.v = "woman"; |
| Expect.equals("woman", c.v); |
| Expect.throws(() {c.v = "Lily was here";}); |
| |
| g = "no"; |
| Expect.equals("no", g); |
| Expect.throws(() {g = "Lily was here";}); |
| } |