// Copyright 2019 The Abseil Authors.

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//      https://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

#ifndef ABSL_STATUS_INTERNAL_STATUS_INTERNAL_H_

#define ABSL_STATUS_INTERNAL_STATUS_INTERNAL_H_

#include <memory>

#include <string>

#include <utility>

#include "absl/base/attributes.h"

#include "absl/container/inlined_vector.h"

#include "absl/strings/cord.h"

#ifndef SWIG

// Disabled for SWIG as it doesn't parse attributes correctly.

namespace absl {

ABSL_NAMESPACE_BEGIN

// Returned Status objects may not be ignored. Codesearch doesn't handle ifdefs

// as part of a class definitions (b/6995610), so we use a forward declaration.

//

// TODO(b/176172494): ABSL_MUST_USE_RESULT should expand to the more strict

// [[nodiscard]]. For now, just use [[nodiscard]] directly when it is available.

#if ABSL_HAVE_CPP_ATTRIBUTE(nodiscard)

class [[nodiscard]] Status;

#else

class ABSL_MUST_USE_RESULT Status;

#endif

ABSL_NAMESPACE_END

}  // namespace absl

#endif  // !SWIG

namespace absl {

ABSL_NAMESPACE_BEGIN

enum class StatusCode : int;

namespace status_internal {

// Container for status payloads.

struct Payload {

  std::string type_url;

  absl::Cord payload;

};

using Payloads = absl::InlinedVector<Payload, 1>;

// Reference-counted representation of Status data.

struct StatusRep {

  StatusRep(absl::StatusCode code_arg, absl::string_view message_arg,

            std::unique_ptr<status_internal::Payloads> payloads_arg)

      : ref(int32_t{1}),

        code(code_arg),

        message(message_arg),

        payloads(std::move(payloads_arg)) {}

  std::atomic<int32_t> ref;

  absl::StatusCode code;

  std::string message;

  std::unique_ptr<status_internal::Payloads> payloads;

};

absl::StatusCode MapToLocalCode(int value);

// Returns a pointer to a newly-allocated string with the given `prefix`,

// suitable for output as an error message in assertion/`CHECK()` failures.

//

// This is an internal implementation detail for Abseil logging.

std::string* MakeCheckFailString(const absl::Status* status,

                                 const char* prefix);

}  // namespace status_internal

ABSL_NAMESPACE_END

}  // namespace absl

#endif  // ABSL_STATUS_INTERNAL_STATUS_INTERNAL_H_