Language/Generics/class_A01_t01.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.
 */
/**
 * @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 C<T> {}

main() {
  C? c1;

  C<int>?       c2;
  C<List<num>>? c3;
  C<void>?      c4;
  C<Null>?      c5;
  C<C>?         c6;

  C<int, int>?                 c7;
//^^^^^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
// [cfe] Expected 1 type arguments.
  C<dynamic, dynamic>?         c8;
//^^^^^^^^^^^^^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
// [cfe] Expected 1 type arguments.
  C<int, String, long>?        c9;
// [error line 38, column 0]
// [analyzer] unspecified
// [cfe] unspecified
  C<int, int, int, int, int>? c10;
//^^^^^^^^^^^^^^^^^^^^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
// [cfe] Expected 1 type arguments.
}