//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// SPDX-FileCopyrightText: Copyright (c) 2023 NVIDIA CORPORATION & AFFILIATES.
//
//===----------------------------------------------------------------------===//

// <cuda/std/optional>

// ~optional();

#include <cuda/std/cassert>
#include <cuda/std/optional>
#include <cuda/std/type_traits>

#include "test_macros.h"

using cuda::std::optional;

struct PODType
{
  int value;
  int value2;
};

class X
{
public:
  STATIC_MEMBER_VAR(dtor_called, bool);
  X() = default;
  __host__ __device__ ~X()
  {
    dtor_called() = true;
  }
};

int main(int, char**)
{
  {
    typedef int T;
    static_assert(cuda::std::is_trivially_destructible<T>::value, "");
    static_assert(cuda::std::is_trivially_destructible<optional<T>>::value, "");
#ifdef CCCL_ENABLE_OPTIONAL_REF
    static_assert(cuda::std::is_trivially_destructible<optional<T&>>::value, "");
#endif // CCCL_ENABLE_OPTIONAL_REF
  }
  {
    typedef double T;
    static_assert(cuda::std::is_trivially_destructible<T>::value, "");
    static_assert(cuda::std::is_trivially_destructible<optional<T>>::value, "");
#ifdef CCCL_ENABLE_OPTIONAL_REF
    static_assert(cuda::std::is_trivially_destructible<optional<T&>>::value, "");
#endif // CCCL_ENABLE_OPTIONAL_REF
  }
  {
    typedef PODType T;
    static_assert(cuda::std::is_trivially_destructible<T>::value, "");
    static_assert(cuda::std::is_trivially_destructible<optional<T>>::value, "");
#ifdef CCCL_ENABLE_OPTIONAL_REF
    static_assert(cuda::std::is_trivially_destructible<optional<T&>>::value, "");
#endif // CCCL_ENABLE_OPTIONAL_REF
  }
  {
    typedef X T;
    static_assert(!cuda::std::is_trivially_destructible<T>::value, "");
    static_assert(!cuda::std::is_trivially_destructible<optional<T>>::value, "");
#ifdef CCCL_ENABLE_OPTIONAL_REF
    static_assert(cuda::std::is_trivially_destructible<optional<T&>>::value, "");
#endif // CCCL_ENABLE_OPTIONAL_REF
    {
      X x;
      optional<X> opt{x};
      assert(X::dtor_called() == false);
    }
    assert(X::dtor_called() == true);
  }

  return 0;
}
