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>
45 lines
1.0 KiB
Dart
45 lines
1.0 KiB
Dart
// Copyright (c) 2013, 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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import "dart:_foreign_helper" show JS;
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// Test that native objects cannot accidentally or maliciously be mistaken for
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// Dart objects.
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// This test currently fails because we do not recognize the need for
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// interceptors without native *classes*.
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class Thing {}
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make1() native;
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make2() native;
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void setup() {
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JS('', r"""
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(function(){
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function A() {}
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A.prototype.$isThing = true;
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self.make1 = function(){return new A();};
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self.make2 = function(){return {$isThing: true}};
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})()""");
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}
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@pragma('dart2js:noInline')
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@pragma('dart2js:assumeDynamic')
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inscrutable(x) => x;
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main() {
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setup();
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var a = new Thing();
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var b = make1();
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var c = make2();
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Expect.isTrue(inscrutable(a) is Thing);
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Expect.isFalse(inscrutable(b) is Thing);
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Expect.isFalse(inscrutable(c) is Thing);
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}
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