blob: c076415b48148a6b38c5b38bd66eb993eeba6965 [file] [log] [blame]
// Copyright (c) 2022, 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 The Enum class behaves as if it was declared as:
/// class Enum {
/// // No default constructor.
/// external int get index;
/// external String toString();
/// }
/// We intend to (at least pretend to) let enum classes extend Enum, and let
/// mixins and members access the default index and toString() through super..
/// (In practice, we may use a different class implementing Enum as the
/// superclass, but for checking the validity of super.index/super.toString(),
/// we analyze against Enum itself, so it must have non-abstract
/// implementations.)
/// This all makes it look as if Enum would be a valid superclass for the mixin
/// applications and methods of the enhanced enum class.
/// @description Check `index` and `toString()` members
/// @author
// SharedOptions=--enable-experiment=enhanced-enums
import "../../Utils/expect.dart";
enum E1 {
main() {
Expect.equals(0, E1.e1.index);
Expect.equals(1, E1.e2.index);
Expect.equals(2, E1.e3.index);
Expect.equals("E1.e1", E1.e1.toString());
Expect.equals("E1.e2", E1.e2.toString());
Expect.equals("E1.e3", E1.e3.toString());