LanguageFeatures/nnbd/const_evaluation_A01_t18.dart

// Copyright (c) 2020, 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 With sound null safety, all generic const constructors and
 * generic const literals are evaluated using the actual type arguments
 * provided, whether legacy or non-legacy. This ensures that with sound null
 * safety, the final consistent semantics are obeyed.
 *
 * @description Checks dynamically that actual generic class type parameter is
 * evaluated correctly for [Never] type argument.
 *
 * @issue 39678
 * @author iarkh@unipro.ru
 */
// Requirements=nnbd-strong

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

class A<T> {
  const A();
  void testme() { Expect.equals(Never, T); }
}

main() {
  const a = A<Never>();
  a.testme();
}