| // 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 test program for constructors and initializers. |
| |
| // @dart = 2.9 |
| |
| // Check function subtyping for null. |
| |
| import 'package:expect/expect.dart'; |
| |
| typedef int Foo(bool a, [String b]); |
| typedef int Bar<T>(T a, [String b]); |
| |
| main() { |
| Expect.isFalse(null is Foo, 'null is Foo'); |
| Expect.isFalse(null is Bar<bool>, 'null is Bar<bool>'); |
| Expect.isFalse(null is Bar, 'null is Bar'); |
| } |