| /* |
| * 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 [l] != [s]. |
| * @description Checks that compile error is thrown if parametrized type number |
| * is incorrect for [typedef] which defines class. |
| * @author iarkh@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=nonfunction-type-aliases |
| |
| class A<T> {} |
| class B<T1, T2> {} |
| class C<T1, T2, T3> {} |
| |
| typedef AAlias<T> = A<T>; |
| typedef BAlias<T1, T2> = B<T1, T2>; |
| typedef CAlias<T1, T2, T3> = C<T1, T2, T3>; |
| |
| main() { |
| AAlias a1; |
| AAlias<int> a2; |
| AAlias<dynamic, dynamic> a3; //# 01: compile-time error |
| AAlias<int, dynamic, String> a4; //# 02: compile-time error |
| AAlias<int, dynamic, String, dynamic> a5; //# 03: compile-time error |
| |
| BAlias b1; |
| BAlias<int> b2; //# 04: compile-time error |
| BAlias<dynamic, dynamic> b3; |
| BAlias<int, dynamic, String> b4; //# 05: compile-time error |
| BAlias<int, dynamic, String, dynamic> b5; //# 06: compile-time error |
| |
| CAlias c1; |
| CAlias<int> c2; //# 07: compile-time error |
| CAlias<dynamic, dynamic> c3; //# 08: compile-time error |
| CAlias<int, dynamic, String> c4; |
| CAlias<int, dynamic, String, dynamic> c5; //# 09: compile-time error |
| } |