// Copyright (c) 2018, 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 Let [G] be a generic class or parameterized type alias with formal
/// type parameter declarations [F1] .. [Fk] containing formal type parameters
/// [X1] .. [Xk] and bounds [B1] .. [Bk]. We say that the formal type parameter
/// [Xj] has a simple bound when one of the following requirements is satisfied:
/// [Bj] is omitted.
/// [Bj] is included, but does not contain any of [X1] .. [Xk]. If [Bj] contains
/// a type [T] on the form qualified (for instance, [C] or [p.D]) which denotes a
/// generic class or parameterized type alias [G1] (that is, [T] is a raw type),
/// every type argument of [G1] has a simple bound.
/// @description Checks that simple bounds of non-function type alias are correct
/// for [A<X extends List<int>?>], [B<X extends Map<int, int>?>.
/// @author iarkh@unipro.ru

// SharedOptions=--enable-experiment=nonfunction-type-aliases

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

class C<X> {}

typedef A<X extends List<int>> = C<X>?;
typedef B<X extends Map<int, int>> = C<X>?;

main() {
  Expect.equals(
    typeOf<A<List<int>>?>(),
    typeOf<A>(),
  );

  Expect.equals(
    typeOf<B<Map<int, int>>?>(),
    typeOf<B>(),
  );

}