| /* |
| * 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 It is an error if an optional parameter (named or otherwise) with |
| * no default value has a potentially non-nullable type. |
| * |
| * @description Check that it is a compile-time error if an optional parameter |
| * (named or otherwise) with no default value has a potentially non-nullable |
| * type. Test type aliases |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=non-nullable,nonfunction-type-aliases |
| |
| class A { |
| static void test1(var x, [A a]) {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| static void test2(var x, {A a}) {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| |
| typedef AAlias = A?; |
| |
| class C<X extends AAlias> { |
| X x; |
| C(this.x); |
| |
| void test1<X extends AAlias>(var x, [X x]) {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| void test2<X extends AAlias>(var x, {X x}) {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| |
| void test1<X extends AAlias>(var x, [X x]) {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| void test2<X extends AAlias>(var x, {X x}) {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| main() { |
| AAlias a = new A(); |
| C<AAlias> c = new C<AAlias>(a); |
| } |