LanguageFeatures/nnbd/weak/type-aliases/generics_A01_t04.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 The default bound of generic type parameters is treated as
 * [Object?].
 * @description Check that default generic non-function typedef type parameter
 * is treated as [Object?] statically.
 *
 * @Issue 40367, 40368
 * @author iarkh@unipro.ru
 */
// SharedOptions=--enable-experiment=nonfunction-type-aliases
// Requirements=nnbd-weak

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

class A<T> {}
typedef AAlias<T> = A<T>;

class B<T1, T2, T3> {}
typedef BAlias<T1, T2, T3> = B<T1, T2, T3>;

F<AAlias<Object?>?>? testA(AAlias? source) {
  var fsource = toF(source);
  return fsource;
}

F<BAlias<Object?, Object?, Object?>?>? testB(BAlias? source) {
  var fsource = toF(source);
  return fsource;
}

main() {
  print(testA);
  print(testB);
}