| // 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 bound closures on generic type against generic |
| // typedefs. |
| |
| import 'package:expect/expect.dart'; |
| |
| typedef int Foo<T>(T a, [String b]); |
| typedef int Bar<T>(T a, [String b]); |
| typedef int Baz<T>(T a, {String b}); |
| typedef int Boz<T>(T a); |
| typedef int Biz<T>(T a, int b); |
| |
| class C<T> { |
| int foo(bool a, [String b]) => null; |
| int baz(bool a, {String b}) => null; |
| |
| void test(String nameOfT, bool expectedResult) { |
| void localMethod() { |
| Expect.equals(expectedResult, foo is Foo<T>, 'foo is Foo<$nameOfT>'); |
| Expect.equals(expectedResult, foo is Bar<T>, 'foo is Bar<$nameOfT>'); |
| Expect.isFalse(foo is Baz<T>, 'foo is Baz<$nameOfT>'); |
| Expect.equals(expectedResult, foo is Boz<T>, 'foo is Boz<$nameOfT>'); |
| Expect.isFalse(foo is Biz<T>, 'foo is Biz<$nameOfT>'); |
| |
| Expect.isFalse(baz is Foo<T>, 'baz is Foo<$nameOfT>'); |
| Expect.isFalse(baz is Bar<T>, 'baz is Bar<$nameOfT>'); |
| Expect.equals(expectedResult, baz is Baz<T>, 'baz is Baz<$nameOfT>'); |
| Expect.equals(expectedResult, baz is Boz<T>, 'baz is Boz<$nameOfT>'); |
| Expect.isFalse(baz is Biz<T>, 'bar is Biz<$nameOfT>'); |
| } |
| |
| localMethod(); |
| } |
| } |
| |
| main() { |
| new C<bool>().test('bool', true); |
| new C<int>().test('int', false); |
| new C<Object>().test('Object', false); |
| new C<dynamic>().test('dynamic', false); |
| new C<Null>().test('Null', true); |
| } |