source_location.h

// Copyright (c) 2023 The Dash Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
// Originally from https://github.com/paweldac/source_location

#ifndef BITCOIN_SOURCE_LOCATION_H
#define BITCOIN_SOURCE_LOCATION_H

#pragma once

#include <cstdint>

namespace nostd {
    struct source_location {
    public:
#if defined(__clang__) and (__clang_major__ >= 9)
        static constexpr source_location current(const char* fileName = __builtin_FILE(),
        const char* functionName = __builtin_FUNCTION(),
        const uint_least32_t lineNumber = __builtin_LINE(),
        const uint_least32_t columnOffset = __builtin_COLUMN()) noexcept
#elif defined(__GNUC__) and (__GNUC__ > 4 or (__GNUC__ == 4 and __GNUC_MINOR__ >= 8))
        static constexpr source_location current(const char* fileName = __builtin_FILE(),
        const char* functionName = __builtin_FUNCTION(),
        const uint_least32_t lineNumber = __builtin_LINE(),
        const uint_least32_t columnOffset = 0) noexcept
#else
        static constexpr source_location current(const char* fileName = "unsupported",
                                                 const char* functionName = "unsupported",
                                                 const uint_least32_t lineNumber = 0,
                                                 const uint_least32_t columnOffset = 0) noexcept
#endif
        {
            return source_location(fileName, functionName, lineNumber, columnOffset);
        }

        source_location(const source_location&) = default;
        source_location(source_location&&) = default;

        constexpr const char* file_name() const noexcept
        {
            return fileName;
        }

        constexpr const char* function_name() const noexcept
        {
            return functionName;
        }

        constexpr uint_least32_t line() const noexcept
        {
            return lineNumber;
        }

        constexpr std::uint_least32_t column() const noexcept
        {
            return columnOffset;
        }

    private:
        constexpr source_location(const char* fileName, const char* functionName, const uint_least32_t lineNumber,
                                  const uint_least32_t columnOffset) noexcept
                : fileName(fileName)
                , functionName(functionName)
                , lineNumber(lineNumber)
                , columnOffset(columnOffset)
        {
        }

        const char* fileName;
        const char* functionName;
        const std::uint_least32_t lineNumber;
        const std::uint_least32_t columnOffset;
    };
} // namespace nostd

#endif // BITCOIN_SOURCE_LOCATION_H