pkg/front_end/testcases/class_modifiers/anonymous_mixin.dart - sdk - Git at Google

 // 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.

 final mixin M1 {}
 sealed mixin M2 {}
 base class S {}

 final class C extends S with M1, M2 {}
 final class D = S with M1, M2;
	// 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.

	final mixin M1 {}
	sealed mixin M2 {}
	base class S {}

	final class C extends S with M1, M2 {}
	final class D = S with M1, M2;