Joshua Litt
20faaa5d94
Change-Id: Ib18f554c1076f27a3f7c0df5a36410da41a1f467 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/148784 Reviewed-by: Paul Berry <paulberry@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>
38 lines
867 B
Dart
38 lines
867 B
Dart
// Copyright (c) 2015, 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 "package:expect/expect.dart";
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// ignore: import_internal_library
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import 'dart:_js_helper' show Native;
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// ignore: import_internal_library
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import 'dart:_foreign_helper' show JS;
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/*class: Purple:checkedInstance,checks=[$isPurple],instance*/
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@Native('PPPP')
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class Purple {}
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/*class: Q:instance*/
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@Native('QQQQ')
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class Q {}
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@pragma('dart2js:noInline')
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makeP() => JS('returns:;creates:Purple', 'null');
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@pragma('dart2js:noInline')
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makeQ() => JS('Q', 'null');
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@pragma('dart2js:noInline')
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testNative() {
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var x = makeP();
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Expect.isTrue(x is Purple);
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x = makeQ();
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Expect.isFalse(x is Purple);
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}
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main() {
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testNative();
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}
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