Johnni Winther
251c3d7d42
Closes #42603 Change-Id: I52261ccb7c1d88a7469a72e244466b193777fe38 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/155330 Reviewed-by: Dmitry Stefantsov <dmitryas@google.com> Commit-Queue: Johnni Winther <johnniwinther@google.com>
34 lines
759 B
Dart
34 lines
759 B
Dart
// Copyright (c) 2020, 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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class C {
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bool operator ==(Object other) => true;
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}
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class D extends C {
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bool operator ==(Object? other) => super == other;
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bool method1(dynamic o) => super == o;
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bool method2(Null o) => super == o;
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}
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class E {
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bool operator ==() => true;
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}
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class F extends E {
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bool operator ==(Object? other) => super == other;
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}
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main() {
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expect(true, D() == D());
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expect(false, D().method1(null));
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expect(false, D().method2(null));
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}
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expect(expected, actual) {
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if (expected != actual) throw 'Expected $expected, actual $actual';
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}
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