| // 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 mixin declaration or a class declaration with |
| /// no generative constructors declares an instance variable with a potentially |
| /// non-nullable type and no initializer expression unless the variable is marked |
| /// with the late modifier. |
| /// |
| /// @description Check that it is an error if a class declaration with no |
| /// generative constructors declares an instance variable with a potentially |
| /// non-nullable type and no initializer expression. Test FutureOr<T>, where |
| /// <T extends Object> |
| /// @author sgrekhov@unipro.ru |
| /// @issue 40677 |
| /// @issue 40940 |
| |
| |
| import "dart:async"; |
| |
| class C<T extends Object> { |
| FutureOr<T> t; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| factory C.f(T t) = D; |
| } |
| |
| class D<T extends Object> implements C<T> { |
| FutureOr<T> t; |
| D(this.t); |
| } |
| |
| main() { |
| new C<String>.f("Lily was here"); |
| } |