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a36da30529
Change-Id: Ic6b5732100908fe6ce5abfc8c577e9f5ad8245b7 Reviewed-on: https://dart-review.googlesource.com/24021 Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Commit-Queue: Paul Berry <paulberry@google.com>
24 lines
491 B
Dart
24 lines
491 B
Dart
// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import "package:expect/expect.dart";
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class A {}
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class B extends A {}
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class C {
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void operator []=(B b, Object o) {}
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}
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void main() {
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A a1 = new B();
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A a2 = new A();
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C c = new C();
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c[a1] = null; // No error
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Expect.throwsTypeError(() {
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c[a2] = null;
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});
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}
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