Language/Generics/class_A01_t02.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 one type
/// argument
/// @author iarkh@unipro.ru


class C1<T extends num> {}

main() {
  C1 c1;

  C1<int>  c2;
  C1<void> c3;
  C1<Null> c4;
  C1<int>  c5;

  C1<int, int>                                                   c6; //# 01: compile-time error
  C1<int, int, int>                                              c7; //# 02: compile-time error
  C1<int, int, int, int, int>                                    c8; //# 03: compile-time error
  C1<int, int, int, int, int, int, int, int, int, int, int, int> c9; //# 04: compile-time error
  C1<List<num>>                                                 c10; //# 05: compile-time error
  C1<C1>                                                        c11; //# 06: compile-time error
}