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05ca544f15
Change-Id: Iaa0ca2b4f2d1b15f79ddca37834d3ed2497bc068 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149242 Commit-Queue: Joshua Litt <joshualitt@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>
37 lines
722 B
Dart
37 lines
722 B
Dart
// Copyright (c) 2018, 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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// @dart = 2.7
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// dart2jsOptions=--strong
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// Regression test for issue 32770.
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import 'package:expect/expect.dart';
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dynamic f;
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dynamic g;
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class A {}
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class B extends A {}
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class C extends A {}
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class Class<T> {
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void Function(E) method<E, F extends E>(void Function(F) callback) {
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return (E event) {
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g = () => callback(event as F);
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};
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}
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}
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main() {
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f = new Class<String>().method<A, B>((o) => print(o));
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f(new B());
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g();
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f(new C());
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Expect.throws(() => g(), (_) => true);
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}
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