// Copyright (c) 2018, 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.
// SharedOptions=--supermixin

abstract class A<T> {}

class B {}

class M<T> extends A<T> {}

// No matching class from which to infer the type parameter of M
class C extends Object with M {} //# 01: compile-time error

class C = Object with M; //# 02: compile-time error

// Satisfying the constraint in the "implements" clause is not sufficient
class C extends Object with M implements A<B> {} //# 03: compile-time error

class C = Object with M implements A<B>; //# 04: compile-time error

main() {}