// Copyright (c) 2017, 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.

/*@testedFeatures=inference*/
library test;

class A {
  B b = throw '';
}

class B {
  C? get c => null;
  void set c(C? value) {}
}

class C {}

class D extends C {}

var a = new A();
var x = a. /*@target=A.b*/ b. /*@target=B.c*/ c;
var y = a. /*@type=B*/ /*@target=A.b*/ /*@target=B.c*/ b. /*@target=B.c*/ c
     ??= new D();

main() {}