// 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 Let C be a concrete class that does not declare its own
/// noSuchMethod() distinct from the one declared in class Object.
/// It is a compile error if the implicit interface of C includes an instance
/// member m of type F and C does not declare or inherit a corresponding
/// non-abstract instance member m of type F' such that F' <: F.
/// @description Checks that it is a compile error if a class does not declare
/// nor inherit an instance method declared in class' interface. Test type alias
/// @author sgrekhov@unipro.ru

abstract class I {
  foo();
}

typedef IAlias = I;

class C implements IAlias {
//    ^
// [analyzer] unspecified
// [cfe] unspecified
}

main () {
  new C();
}