| // 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 can be another type alias. |
| /// @author iarkh@unipro.ru |
| |
| class A<X> {} |
| |
| typedef X1<T> = A<T>; |
| typedef X2<T> = X1<T>; |
| |
| main() {} |
