| /* |

| * 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; |

| * m typedef S? id<X1 extends B1, . . . , Xs extends Bs>( |

| * T1 p1, . . . , Tn pn, [Tn+1 pn+1, . . . , Tn+k pn+k]); |

| * m typedef S? id<X1 extends B1, . . . , Xs extends Bs>( |

| * T1 p1, . . . , Tn pn, {Tn+1 pn+1, . . . , Tn+k pn+k}); |

| * 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 |

| * S0 Function(T1, . . . , Tn, [Tn+1, . . . , Tn+k]) |

| * S0 Function(T1, . . . , Tn, {Tn+1 xn+1, . . . , Tn+k xn+k}) |

| * ... |

| * Moreover, let [T1], . . . , [Tl] be types and let [U] be the parameterized |

| * type id<T1, . . . , Tl> in a location where [id] denotes [D]. ... It is a |

| * compile-time error if [U] is not well-bounded |

| * @description Checks that compile error is thrown if [U] is not well-bounded. |

| * @Issue 36959 |

| * @author iarkh@unipro.ru |

| */ |

| |

| class A<X extends A<X>> {} |

| |

| typedef AAlias<T extends A<T>> = T Function<T>(); |

| |

| main() { |

| AAlias a1; |

| AAlias<A> a2; |

| AAlias<A<Null>> a3; |

| AAlias<A<dynamic>> a4; |

| AAlias<A<Object>> a5; |

| AAlias<A<int>> a6; //# 01: compile-time error |

| AAlias<int> a7; //# 02: compile-time error |

| AAlias<dynamic> a8; |

| } |