| // 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. |
| |
| // @dart = 2.9 |
| |
| /// @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 |
| |
| |
| typedef void AAlias<T>(T); |
| typedef T1 BAlias<T1, T2>(T1, {T2}); |
| typedef T1 CAlias<T1, T2, T3>(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 |
| } |