blob: d329b82844d39ea8adc98ce7662475a6222e0ac5 [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.
import "package:expect/expect.dart";
class A {}
class B extends A {}
class C {
C operator +(B b) => this;
void main() {
C c = new C();
A a1 = new B();
A a2 = new A();
c += a1; // No error
Expect.throwsTypeError(() {
c += a2;