// 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. | |
class A { | |
B b; | |
A(this.b); | |
} | |
class B { | |
C operator +(int i) => new C(); | |
} | |
class C extends B {} | |
main() { | |
A? a; | |
a?.b++; | |
B? c = a?.b++; | |
} |