| // Copyright (c) 2017, 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. |
| |
| // Test that generic methods can be specialized after being torn off, and that |
| // their specialized versions are correctly constructed. |
| |
| library generic_methods_tearoff_specialization_test; |
| |
| import "package:expect/expect.dart"; |
| |
| class A { |
| T fun<T>(T t) => t; |
| } |
| |
| typedef Int2Int = int Function(int); |
| typedef String2String = String Function(String); |
| typedef Object2Object = Object Function(Object); |
| typedef GenericMethod = T Function<T>(T); |
| |
| main() { |
| A a = new A(); |
| Int2Int f = a.fun; |
| String2String g = a.fun; |
| Object2Object h = a.fun; |
| var generic = a.fun; |
| |
| Expect.isTrue(f is Int2Int); |
| Expect.isTrue(f is! String2String); |
| Expect.isTrue(f is! Object2Object); |
| Expect.isTrue(f is! GenericMethod); |
| |
| Expect.isTrue(g is! Int2Int); |
| Expect.isTrue(g is String2String); |
| Expect.isTrue(g is! Object2Object); |
| Expect.isTrue(g is! GenericMethod); |
| |
| Expect.isTrue(h is! Int2Int); |
| Expect.isTrue(h is! String2String); |
| Expect.isTrue(h is Object2Object); |
| Expect.isTrue(g is! GenericMethod); |
| |
| Expect.isTrue(generic is! Int2Int); |
| Expect.isTrue(generic is! String2String); |
| Expect.isTrue(generic is! Object2Object); |
| Expect.isTrue(generic is GenericMethod); |
| } |