| // Copyright (c) 2017, 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 |
| |
| /// Test that optional arguments of js-interop constructors are not passed |
| /// explicitly when missing. |
| /// |
| /// This is a regression test for issue 32697 |
| |
| import "package:js/js.dart"; |
| import "package:expect/expect.dart"; |
| import "dart:js" as js; |
| |
| @JS('C') |
| class C { |
| external C([a]); |
| external bool get isUndefined; |
| } |
| |
| main() { |
| js.context.callMethod("eval", [ |
| """ |
| function C(a){ |
| this.isUndefined = a === undefined; |
| }; |
| """ |
| ]); |
| |
| Expect.isTrue(new C().isUndefined); |
| } |