Sigmund Cherem
912005267d
Change-Id: I46be49b2effec3e38a3dc44cd45cfe736f77fa78 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182680 Commit-Queue: Sigmund Cherem <sigmund@google.com> Reviewed-by: Joshua Litt <joshualitt@google.com> Reviewed-by: Nicholas Shahan <nshahan@google.com> Reviewed-by: Stephen Adams <sra@google.com>
43 lines
1.2 KiB
Dart
43 lines
1.2 KiB
Dart
// Copyright (c) 2019, 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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//
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// dart2jsOptions=--experiment-new-rti --no-minify
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import 'dart:_rti' as rti;
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import "package:expect/expect.dart";
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class Thingy {}
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class Generic<AA> {
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checkMethod(o) => o is AA;
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}
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@pragma('dart2js:noInline')
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void check<T>(o) {
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Expect.isTrue(o is T);
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Expect.isFalse(o is! T);
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}
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main() {
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check<Thingy>(Thingy());
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check<Generic<int>>(Generic<int>());
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check<Generic<dynamic>>(Generic<dynamic>());
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check<Generic<Object>>(Generic<Object>());
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check<Generic<Object>>(Generic<dynamic>());
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check<Generic<dynamic>>(Generic<Object>());
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Expect.isTrue(Generic<Thingy>().checkMethod(Thingy()));
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Expect.isTrue(Generic<Object>().checkMethod(Object()));
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Expect.isTrue(Generic<Object>().checkMethod(Thingy()));
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Expect.isFalse(Generic<Thingy>().checkMethod(Object()));
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Expect.isTrue(Generic<dynamic>().checkMethod(Object()));
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Expect.isFalse(Generic<Thingy>().checkMethod(123));
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Expect.isFalse(Generic<Thingy>().checkMethod(Object()));
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}
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