Language/Expressions/Lookup/Method_Lookup/method_lookup_t04.dart

// Copyright (c) 2011, 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 result of a lookup of method m in class C with respect to
 * library L is: If C declares a concrete instance method named m that is
 * accessible to L, then that method is the result of the lookup, and we say
 * that the method was looked up in c. Otherwise, if C has a superclass S, then
 * the result of the lookup is the result of looking up m in S with respect to
 * L. Otherwise, we say that the method lookup has failed.
 * @description Checks that if class C declares an abstract instance method
 * and has a superclass, then the result of lookup is the the result of
 * lookup in the superclass.
 * @author ilya
 */
import '../../../../Utils/expect.dart';

class S {
  int m() => 1;
}

class C extends S {
  int m(); // static warning: abstract method in a concrete class
}

main()  {
  var o = new C();
  Expect.equals(1, o.m());
}