| // 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<X1extendsB1, ..., Xs extendsBs> = T; |
| /// ... |
| /// where [m] is derived from metadata, [T] is a type, and [S?] is a type or the |
| /// empty string. Let [S0] be [S?] if it is a type, otherwise let [S0] be |
| /// [dynamic]. The associated type of [D], call it [F], is, respectively: |
| /// T |
| /// ... |
| /// @description Checks that [T] should be a type. |
| /// @author iarkh@unipro.ru |
| |
| // SharedOptions=--enable-experiment=nonfunction-type-aliases |
| |
| class A { |
| static void callme<T>() { return null; } |
| } |
| class B<T> {} |
| class C<T1, T2> {} |
| |
| int i = 5; |
| |
| typedef X1<T> = A; |
| typedef X2<T> = B<T>; |
| typedef X3<T> = B; |
| typedef X4<T1, T2> = C<T1, T2>; |
| typedef X5<T> = List<T>; |
| typedef X6<T1, T2> = Map<T1, T2>; |
| typedef X7<T> = Object; |
| |
| typedef W1<T> = i; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| typedef W2<T> = 5; |
| // ^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| typedef W3<T> = A.callme<T1 extends T>(); |
| // ^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| main() {} |