| // Copyright (c) 2019, 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. |
| |
| /// @assertion A class declaration, type alias, or function [G] may be generic, |
| /// that is, [G] may have formal type parameters declared. |
| /// @description Checks that class can be declared with formal type parameters. |
| /// @author pagolubev |
| |
| |
| import "../../Utils/expect.dart"; |
| |
| class A<T> { |
| A(this.val) {} |
| T val; |
| } |
| |
| class B<T1, T2> { |
| B(this.x, this.y) {} |
| T1 x; |
| T2 y; |
| } |
| |
| main() { |
| A<int> a = new A<int>(5); |
| Expect.equals(5, a.val); |
| |
| A<String> a2 = new A<String>("s"); |
| Expect.equals("s", a2.val); |
| |
| B<String, double> b = new B<String, double>('1', .2); |
| Expect.equals('1', b.x); |
| Expect.equals(.2, b.y); |
| |
| B<double, String> b2 = new B<double, String>(.2, '1'); |
| Expect.equals(.2, b2.x); |
| Expect.equals('1', b2.y); |
| } |