| // 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 with type variables in factory constructors. |
| |
| import 'package:expect/expect.dart'; |
| |
| typedef void Foo(); |
| |
| class A<T> { |
| bool foo(a) => a is T; |
| } |
| |
| void bar1() {} |
| void bar2(i) {} |
| |
| void main() { |
| void bar3() {} |
| void bar4(i) {} |
| |
| Expect.isTrue(new A<Foo>().foo(bar1)); |
| Expect.isFalse(new A<Foo>().foo(bar2)); |
| Expect.isTrue(new A<Foo>().foo(bar3)); |
| Expect.isFalse(new A<Foo>().foo(bar4)); |
| Expect.isTrue(new A<Foo>().foo(() {})); |
| Expect.isFalse(new A<Foo>().foo((i) {})); |
| } |