| /* |
| * 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 a required named parameter has a default value. |
| * |
| * @description Check that it is an error if a required named parameter has a |
| * default value. Test both covariant and required modifiers |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=non-nullable |
| class A { |
| const A(); |
| } |
| |
| const a = const A(); |
| |
| class C { |
| void test4({covariant required A x = a}) {} //# 01: compile-time error |
| void test5(int x = 0, {required covariant A s = a}) {} //# 02: compile-time error |
| void test6(int x = 0, {covariant required A y = a, int z = 42}) {} //# 03: compile-time error |
| } |
| |
| main() { |
| } |
