//===----------------------------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//

// UNSUPPORTED: c++03, c++11
// UNSUPPORTED: nvrtc
// UNSUPPORTED: windows

// cuda::mr::async_resource_with

#define LIBCUDACXX_ENABLE_EXPERIMENTAL_MEMORY_RESOURCE

#include <cuda/memory_resource>

#include <cuda/std/cstdint>

struct prop_with_value {};
struct prop {};

struct valid_resource_with_property {
  void* allocate(std::size_t, std::size_t) { return nullptr; }
  void deallocate(void*, std::size_t, std::size_t) {}
  void* allocate_async(std::size_t, std::size_t, cuda::stream_ref) {
    return nullptr;
  }
  void deallocate_async(void*, std::size_t, std::size_t, cuda::stream_ref) {}
  bool operator==(const valid_resource_with_property&) const { return true; }
  bool operator!=(const valid_resource_with_property&) const { return false; }
  friend void get_property(const valid_resource_with_property&,
                           prop_with_value) {}
};
static_assert(cuda::mr::async_resource_with<valid_resource_with_property,
                                            prop_with_value>,
              "");

struct valid_resource_without_property {
  void* allocate(std::size_t, std::size_t) { return nullptr; }
  void deallocate(void*, std::size_t, std::size_t) {}
  void* allocate_async(std::size_t, std::size_t, cuda::stream_ref) {
    return nullptr;
  }
  void deallocate_async(void*, std::size_t, std::size_t, cuda::stream_ref) {}
  bool operator==(const valid_resource_without_property&) const { return true; }
  bool operator!=(const valid_resource_without_property&) const { return false; }
};
static_assert(!cuda::mr::async_resource_with<valid_resource_without_property,
                                             prop_with_value>,
              "");

struct invalid_resource_with_property {
  friend void get_property(const invalid_resource_with_property&,
                           prop_with_value) {}
};
static_assert(!cuda::mr::async_resource_with<invalid_resource_with_property,
                                             prop_with_value>,
              "");

struct resource_with_many_properties {
  void* allocate(std::size_t, std::size_t) { return nullptr; }
  void deallocate(void*, std::size_t, std::size_t) {}
  void* allocate_async(std::size_t, std::size_t, cuda::stream_ref) {
    return nullptr;
  }
  void deallocate_async(void*, std::size_t, std::size_t, cuda::stream_ref) {}
  bool operator==(const resource_with_many_properties&) const { return true; }
  bool operator!=(const resource_with_many_properties&) const { return false; }
  friend void get_property(const resource_with_many_properties&,
                           prop_with_value) {}
  friend void get_property(const resource_with_many_properties&, prop) {}
};
static_assert(cuda::mr::async_resource_with<resource_with_many_properties,
                                            prop_with_value, prop>,
              "");
static_assert(!cuda::mr::async_resource_with<resource_with_many_properties,
                                             prop_with_value, int, prop>,
              "");

struct derived_with_property : public valid_resource_without_property {
  friend void get_property(const derived_with_property&, prop_with_value) {}
};
static_assert(
    cuda::mr::async_resource_with<derived_with_property, prop_with_value>, "");

int main(int, char**) { return 0; }
