blob: c29d6346c49fd607b9f5a9de93d04d5bcea41bc2 [file] [log] [blame]
// 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.
class A {}
class B extends A {}
void main() {
B? b;
var a = new B() as A?;
b ??= a;
// ^
// [cfe] A value of type 'A?' can't be assigned to a variable of type 'B?'.