| /* |
| * Copyright (c) 2020, 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 It is an error if a class declaration declares an instance |
| * variable with a potentially non-nullable type and no initializer expression, |
| * and the class has a generative constructor where the variable is not |
| * initialized via an initializing formal or an initializer list entry, unless |
| * the variable is marked with the late modifier. |
| * |
| * @description Check that it is an error if a class declaration declares an |
| * instance variable with a potentially non-nullable type and no initializer |
| * expression, and the class has a generative constructor where the variable is |
| * not initialized via an initializing formal or an initializer list entry, |
| * unless the variable is marked with the late modifier. Test FutureOr<Never> |
| * @author sgrekhov@unipro.ru |
| * @issue 40951 |
| */ |
| // SharedOptions=--enable-experiment=non-nullable |
| // Requirements=nnbd-strong |
| import "dart:async"; |
| |
| class C1 { |
| FutureOr<Never> n; |
| // ^ |
| // [cfe] unspecified |
| C1() {} |
| //^^ |
| // [analyzer] COMPILE_TIME_ERROR.NOT_INITIALIZED_NON_NULLABLE_INSTANCE_FIELD |
| } |
| |
| abstract class C2 { |
| FutureOr<Never> n; |
| // ^ |
| // [cfe] unspecified |
| C2() {} |
| //^^ |
| // [analyzer] COMPILE_TIME_ERROR.NOT_INITIALIZED_NON_NULLABLE_INSTANCE_FIELD |
| } |
| |
| class C3 extends C2 {} |
| |
| main() { |
| new C1(); |
| new C3(); |
| } |