Language/Generics/class_A01_t03.dart

// 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 class declaration introduces a generic class into the 
/// enclosing library scope. A generic class is a mapping that accepts a list of
/// actual type arguments and maps them to a class. Consider a generic class
/// declaration [G] named [C] with formal type parameter declarations [X1 extends
/// B1,..., Xm extends Bm], and a parameterized type [T] of the form
/// [C<T1,..., Tl>].
/// It is a compile-time error if [m != l].
/// @description Checks that compile error is thrown for the case with several
/// type arguments
/// @author iarkh@unipro.ru


class C1<T1 extends num, T2 extends T1> {}
class C2<T1 extends int, T2 extends Function, T3 extends num, T4 extends List> {}
class C3<T1, T2, T3> {}

main() {
  C1 c1;
  C1<num, num> c2;
  C1<int, Null> c3;
  C1<num, int> c4;

  C1<dynamic> c5; //# 01: compile-time error
  C1<Null>    c6; //# 02: compile-time error
  C1<int>     c7; //# 03: compile-time error

  C2 c8;
  C2<int, Function, num, List>  c9;
  C2<int, Function, num, List> c10;
  C2<int, Function, int, Null> c11;
  C2<Null, Null, Null, Null>   c12;

  C2<int> c13;                                                  //# 04: compile-time error
  C2<int, Function> c14;                                        //# 05: compile-time error
  C2<int, Function, num> c15;                                   //# 06: compile-time error
  C2<int, Function, num, List, Null> c16;                       //# 07: compile-time error
  C2<int, Function, num, List, Object> c17;                     //# 08: compile-time error
  C2<int, Function, num, List, int> c18;                        //# 09: compile-time error
  C2<Null, Null, Null, Null, Null> c19;                         //# 10: compile-time error
  C2<Null, Null, Null, Null, Null, Null, Null, Null, Null> c20; //# 11: compile-time error

  C3 c21;
  C3<int, int, int> c22;
  C3<dynamic, dynamic, dynamic> c23;
  C3<dynamic, dynamic> c24;                   //# 12: compile-time error
  C3<dynamic, dynamic, dynamic, dynamic> c25; //# 13: compile-time error
  C3<dynamic, dynamic, dynamic, dynamic, dynamic, dynamic, dynamic, dynamic> c26; //# 14: compile-time error
}