pkg/front_end/testcases/value_class/non_value_extends_value_error.dart

// 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.

const String valueClass = "valueClass";

@valueClass
class Animal {
  final int numberOfLegs;
}

class Cat extends Animal {}

main() {}