blob: f4977790f457e58c30110a31985581e3263a7dc5 [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 {}
class C {
C operator +(B b) => this;
void main() {
C c = new C();
A a = new B();
c += a;
// ^
// [cfe] A value of type 'A' can't be assigned to a variable of type 'B'.