blob: 5d83f941077886909867c911bd1640759f1418ec [file] [log] [blame]
// 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 A() {}
A.prototype.$isThing = true;
self.make1 = function(){return new A();};
self.make2 = function(){return {$isThing: true}};
inscrutable(x) => x;
main() {
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);