| // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // @dart = 2.7 |
| |
| import "package:expect/expect.dart"; |
| import "dart:_foreign_helper" show JS; |
| |
| // Test that native objects cannot accidentally or maliciously be mistaken for |
| // Dart objects. |
| |
| // This test currently fails because we do not recognize the need for |
| // interceptors without native *classes*. |
| |
| class Thing {} |
| |
| make1() native; |
| make2() native; |
| |
| void setup() { |
| JS('', r""" |
| (function(){ |
| function A() {} |
| A.prototype.$isThing = true; |
| self.make1 = function(){return new A();}; |
| self.make2 = function(){return {$isThing: true}}; |
| })()"""); |
| } |
| |
| @pragma('dart2js:noInline') |
| @pragma('dart2js:assumeDynamic') |
| inscrutable(x) => x; |
| |
| main() { |
| setup(); |
| |
| var a = new Thing(); |
| var b = make1(); |
| var c = make2(); |
| Expect.isTrue(inscrutable(a) is Thing); |
| Expect.isFalse(inscrutable(b) is Thing); |
| Expect.isFalse(inscrutable(c) is Thing); |
| } |