blob: 3cbe0952aecafb0d28066e6ef5104687b0e30da7 [file] [log] [blame]
// Copyright (c) 2015, 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 "package:expect/expect.dart";
class A {}
class $B extends A {}
class C implements $B {
// Try to clash with dart2js's isCLASS field.
var isB = false;
var $isB = false;
var is$B = false;
var is$$B = false;
var $is$B = false;
var isA = false;
var $isA = false;
var is$A = false;
var is$$A = false;
var $is$A = false;
int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
main() {
var things = [new A(), new $B(), new C()];
var a = things[inscrutable(0)];
Expect.isTrue(a is A);
Expect.isFalse(a is $B);
Expect.isFalse(a is C);
var b = things[inscrutable(1)];
Expect.isTrue(b is A);
Expect.isTrue(b is $B);
Expect.isFalse(b is C);
var c = things[inscrutable(2)];
Expect.isTrue(c is A);
Expect.isTrue(c is $B);
Expect.isTrue(c is C);