Joshua Litt
eab26cd2bd
Change-Id: Ia1f913a01f2be006158967b145db3ee34b297cfe Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/155660 Commit-Queue: Joshua Litt <joshualitt@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>
31 lines
745 B
Dart
31 lines
745 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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import 'dart:async';
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import 'package:expect/expect.dart';
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/*class: global#Future:checkedInstance*/
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/*class: A:checks=[],instance*/
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class A<T> {
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@pragma('dart2js:noInline')
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m(o) => o is FutureOr<B<T>>;
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}
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/*class: B:checkedInstance,checkedTypeArgument,checks=[],instance,typeArgument*/
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class B<T> {}
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/*class: C:checkedInstance,typeArgument*/
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class C {}
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/*class: D:checkedInstance,typeArgument*/
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class D {}
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main() {
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Expect.isTrue(new A<C>().m(new B<C>()));
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Expect.isFalse(new A<D>().m(new B<C>()));
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}
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