| // 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 generic type alias is a declaration [D] of one of the following |
| /// forms: |
| /// m typedef id<X1 extends B1, . . . , Xs extends Bs> = T; |
| /// ... |
| /// [D] introduces a mapping from actual type argument lists to types. |
| /// @description Checks that [D] maps argument list to types when [T] represents |
| /// some function |
| /// @author iarkh@unipro.ru |
| |
| import "../../Utils/expect.dart"; |
| |
| class X {} |
| class Y extends X {} |
| |
| dynamic checkme1() {} |
| int? checkme2() {} |
| X? checkme3() {} |
| Y? checkme4() {} |
| |
| typedef Func1<T> = T Function(); |
| typedef Func2<T extends X> = T Function(); |
| |
| main() { |
| Expect.isTrue(checkme1 is Func1); |
| Expect.isTrue(checkme2 is Func1); |
| Expect.isTrue(checkme3 is Func1); |
| Expect.isTrue(checkme4 is Func1); |
| Expect.runtimeIsType<Func1>(checkme1); |
| Expect.runtimeIsType<Func1>(checkme2); |
| Expect.runtimeIsType<Func1>(checkme3); |
| Expect.runtimeIsType<Func1>(checkme4); |
| |
| Expect.isFalse(checkme1 is Func2); |
| Expect.isFalse(checkme2 is Func2); |
| Expect.runtimeIsNotType<Func2>(checkme1); |
| Expect.runtimeIsNotType<Func2>(checkme2); |
| if (hasSoundNullSafety) { |
| Expect.isFalse(checkme3 is Func2); |
| Expect.isFalse(checkme4 is Func2); |
| Expect.runtimeIsNotType<Func2>(checkme3); |
| Expect.runtimeIsNotType<Func2>(checkme4); |
| } |
| } |