// 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. | |
extension Foo on Object { | |
set f(int x) {} | |
} | |
void fun(String? s) { | |
s?.f = 1; | |
} |