| // 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 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); |
| |
| class C { |
| int foo(bool a, [String b]) => null; |
| int baz(bool a, {String b}) => null; |
| } |
| |
| main() { |
| var c = new C(); |
| var foo = c.foo; |
| Expect.isTrue(foo is Foo<bool>, 'foo is Foo<bool>'); |
| Expect.isTrue(foo is Bar<bool>, 'foo is Bar<bool>'); |
| Expect.isFalse(foo is Baz<bool>, 'foo is Baz<bool>'); |
| Expect.isTrue(foo is Boz<bool>, 'foo is Boz<bool>'); |
| |
| Expect.isFalse(foo is Foo<int>, 'foo is Foo<int>'); |
| Expect.isFalse(foo is Bar<int>, 'foo is Bar<int>'); |
| Expect.isFalse(foo is Baz<int>, 'foo is Baz<int>'); |
| Expect.isFalse(foo is Boz<int>, 'foo is Boz<int>'); |
| |
| Expect.isFalse(foo is Foo, 'foo is Foo'); |
| Expect.isFalse(foo is Bar, 'foo is Bar'); |
| Expect.isFalse(foo is Baz, 'foo is Baz'); |
| Expect.isFalse(foo is Boz, 'foo is Boz'); |
| |
| var baz = c.baz; |
| Expect.isFalse(baz is Foo<bool>, 'baz is Foo<bool>'); |
| Expect.isFalse(baz is Bar<bool>, 'baz is Bar<bool>'); |
| Expect.isTrue(baz is Baz<bool>, 'baz is Baz<bool>'); |
| Expect.isTrue(baz is Boz<bool>, 'baz is Boz<bool>'); |
| |
| Expect.isFalse(baz is Foo<int>, 'baz is Foo<int>'); |
| Expect.isFalse(baz is Bar<int>, 'baz is Bar<int>'); |
| Expect.isFalse(baz is Baz<int>, 'baz is Baz<int>'); |
| Expect.isFalse(baz is Boz<int>, 'baz is Boz<int>'); |
| |
| Expect.isFalse(baz is Foo, 'baz is Foo'); |
| Expect.isFalse(baz is Bar, 'baz is Bar'); |
| Expect.isFalse(baz is Baz, 'baz is Baz'); |
| Expect.isFalse(baz is Boz, 'baz is Boz'); |
| } |