LanguageFeatures/Class-modifiers/basic_restrictions_A04_t25.dart

// Copyright (c) 2023, 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 a compile-time error if:
/// ...
/// - A declaration has a base or final superdeclaration, and is not itself
///   marked base, final or sealed.
///
/// @description Check that it is a compile-time error if a declaration is not
/// `base`, `final` or `sealed` and has a superdeclaration marked `final`. Test
/// a type alias of an `abstract final` superdeclaration in another library
/// @author sgrekhov22@gmail.com

import "class_modifiers_lib.dart";

class ExtendsFinalClass extends TypedefAbstractFinalClass {}
//                              ^^^^^^^^^^^^^^^^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

interface class InterfaceExtendsFinalClass extends TypedefAbstractFinalClass {}
//                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

abstract class AbstractExtendsFinalClass extends TypedefAbstractFinalClass {}
//                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

abstract interface class AbstractInterfaceExtendsFinalClass extends TypedefAbstractFinalClass {}
//                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

mixin MixinOnFinalClass on TypedefAbstractFinalClass {}
//                         ^^^^^^^^^^^^^^^^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

typedef LocalTypedefAbstractFinalClass = AbstractFinalClass;

class ExtendsLocalTypedefAbstractFinalClass extends LocalTypedefAbstractFinalClass {}
//                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

main() {
  print(ExtendsFinalClass);
  print(InterfaceExtendsFinalClass);
  print(AbstractExtendsFinalClass);
  print(AbstractInterfaceExtendsFinalClass);
  print(MixinOnFinalClass);
  print(ExtendsLocalTypedefAbstractFinalClass);
}