blob: 8177fd5017c015be7a0dc1b23abad27508459212 [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 {
void operator []=(B b, Object o) {}
void main() {
A a1 = new B();
A a2 = new A();
C c = new C();
c[a1] = null; // No error
Expect.throwsTypeError(() {
c[a2] = null;