Language/Interfaces/Superinterfaces/Inheritance_and_Overriding/same_name_getters_t04.dart

// 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 We define inherited(J, K) to be
/// the set of members m such that all of the following hold:
/// • m is accessible to K and
/// • A is a direct superinterface of J and either
/// – A declares a member m or
/// – m is a member of inherited(A, K).
/// • m is not overridden by J.
/// ...
/// However, if the above rules would cause multiple members m1,...,mk with
/// the same name n to be inherited (because identically named members existed
/// in several superinterfaces) then at most one member is inherited
/// @description Checks that if multiple methods with the same name are
/// inherited actually only one method is inherited and no static warning
/// issued. Test type aliases
/// @author sgrekhov@unipro.ru

import '../../../../Utils/expect.dart';

abstract class SI1 {
  int m() {
    return 1;
  }
}

abstract class SI2 {
  int m() {
    return 2;
  }
}

typedef SIAlias1 = SI1;
typedef SIAlias2 = SI2;

abstract class I implements SIAlias1, SIAlias2 {
}

class C extends I {
  int m() {
    return 3;
  }
}

main() {
  I i = new C();
  Expect.equals(3, i.m(), "Wrong method inherited");
}