blob: 8c6b3356ed48fc9696306925268120ed5628b74f [file] [log] [blame]
// Copyright (c) 2011, 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.
import "native_testing.dart";
// Test for correct simple is-checks on hidden native classes.
abstract class I {
I read();
write(I x);
// Native implementation.
class A implements I {
// The native class accepts only other native instances.
A read() native;
write(A x) native;
makeA() native;
void setup() native """
// This code is all inside 'setup' and so not accessible from the global scope.
function A(){} = function() { return this._x; };
A.prototype.write = function(x) { this._x = x; };
makeA = function(){return new A};
class B {}
main() {
var a1 = makeA();
var ob = new Object();
Expect.isFalse(ob is I);
Expect.isFalse(ob is A);
Expect.isFalse(ob is B);
Expect.isTrue(a1 is I);
Expect.isTrue(a1 is A);
Expect.isTrue(a1 is! B);