| // 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. |
| |
| // Check function subtyping for generic bound closures. |
| |
| import 'package:expect/expect.dart'; |
| |
| typedef void Foo(bool a, [String b]); |
| typedef void Bar(bool a, [String b]); |
| typedef void Baz(bool a, {String b}); |
| typedef int Boz(bool a); |
| |
| class C<T> { |
| void test(String nameOfT, bool expectedResult, bool expectedBozResult) { |
| Expect.equals(expectedResult, (T a, [String b = '']) {} is Foo, |
| '($nameOfT,[String])->void is Foo'); |
| Expect.equals(expectedResult, (T a, [String b = '']) {} is Bar, |
| '($nameOfT,[String])->void is Bar'); |
| Expect.isFalse( |
| (T a, [String b = '']) {} is Baz, '($nameOfT,[String])->void is Baz'); |
| |
| // Boz returns a non-nullable int, so a void function is only of that type |
| // in weak mode. |
| Expect.equals(expectedBozResult, (T a, [String b = '']) {} is Boz, |
| '($nameOfT,[String])->void is Boz'); |
| |
| Expect.isFalse( |
| (T a, {String b = ''}) {} is Foo, '($nameOfT,{b:String})->void is Foo'); |
| Expect.isFalse( |
| (T a, {String b = ''}) {} is Bar, '($nameOfT,{b:String})->void is Bar'); |
| Expect.equals(expectedResult, (T a, {String b = ''}) {} is Baz, |
| '($nameOfT,{b:String})->void is Baz'); |
| |
| // Boz returns a non-nullable int, so a void function is only of that type |
| // in weak mode. |
| Expect.equals(expectedBozResult, (T a, {String b = ''}) {} is Boz, |
| '($nameOfT,{b:String})->void is Boz'); |
| } |
| } |
| |
| main() { |
| new C<bool>().test('bool', true, hasUnsoundNullSafety); |
| new C<int>().test('int', false, false); |
| new C<dynamic>().test('dynamic', true, hasUnsoundNullSafety); |
| } |