Language/Generics/class_A03_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>].
 * Otherwise, said parameterized type [C<T1,..., Tm>] denotes an application of
 * the generic class declared by [G] to the type arguments [T1],...,[Tm]. This
 * yields a class [C0] whose members are equivalent to those of a class
 * declaration which is obtained from the declaration [G] by replacing each
 * occurrence of [Xj] by [Tj].
 * @description Checks that each occurrence of [Xj] is replaced by [Tj] for
 * generic class [C0].
 * @author iarkh@unipro.ru
 */

import "dart:async";
import "../../Utils/expect.dart";

class A<X extends A<X>> {}

class C<T> {
  check(expected) { Expect.equals(expected, T); }
}

main() {
  (new C<int>()).check(int);
  (new C<List>()).check(List);
  (new C<String>()).check(String);
  (new C<C>()).check(C);
  (new C<A>()).check(A);
  (new C<dynamic>()).check(dynamic);
  (new C<Null>()).check(Null);
  (new C<Object>()).check(Object);
  (new C<FutureOr>()).check(dynamic);
  (new C<Null>()).check(Null);
}