source_region.hpp

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// # This file is a part of toml++ and is subject to the the terms of the MIT license.
// # Copyright (c) Mark Gillard <mark.gillard@outlook.com.au>
// # See https://github.com/marzer/tomlplusplus/blob/master/LICENSE for the full license text.
//  SPDX-License-Identifier: MIT
#pragma once
 
#include "forward_declarations.hpp"
#include "header_start.hpp"
#include "print_to_stream.hpp"
#include "std_optional.hpp"
#include "std_string.hpp"
 
TOML_NAMESPACE_START {
  using source_index = uint32_t;
 
  using source_path_ptr = std::shared_ptr<const std::string>;
 
  struct TOML_TRIVIAL_ABI source_position {
    source_index line;
 
    source_index column;
 
    TOML_PURE_GETTER
    explicit constexpr operator bool() const noexcept {
      return line > source_index{}  //
             && column > source_index{};
    }
 
    TOML_PURE_GETTER
    friend constexpr bool operator==(const source_position& lhs,
                                     const source_position& rhs) noexcept {
      return lhs.line == rhs.line  //
             && lhs.column == rhs.column;
    }
 
    TOML_PURE_INLINE_GETTER
    friend constexpr bool operator!=(const source_position& lhs,
                                     const source_position& rhs) noexcept {
      return !(lhs == rhs);
    }
 
   private:
 
    TOML_PURE_GETTER
    static constexpr uint64_t pack(const source_position& pos) noexcept {
      return static_cast<uint64_t>(pos.line) << 32 | static_cast<uint64_t>(pos.column);
    }
 
 
   public:
    TOML_PURE_GETTER
    friend constexpr bool operator<(const source_position& lhs,
                                    const source_position& rhs) noexcept {
      return pack(lhs) < pack(rhs);
    }
 
    TOML_PURE_GETTER
    friend constexpr bool operator<=(const source_position& lhs,
                                     const source_position& rhs) noexcept {
      return pack(lhs) <= pack(rhs);
    }
 
    TOML_PURE_GETTER
    friend constexpr bool operator>(const source_position& lhs,
                                    const source_position& rhs) noexcept {
      return pack(lhs) > pack(rhs);
    }
 
    TOML_PURE_GETTER
    friend constexpr bool operator>=(const source_position& lhs,
                                     const source_position& rhs) noexcept {
      return pack(lhs) >= pack(rhs);
    }
 
    friend std::ostream& operator<<(std::ostream& lhs, const source_position& rhs) {
      impl::print_to_stream(lhs, rhs);
      return lhs;
    }
  };
 
  struct source_region {
    source_position begin;
 
    source_position end;
 
    source_path_ptr path;
 
#if TOML_ENABLE_WINDOWS_COMPAT
 
    TOML_NODISCARD
    optional<std::wstring> wide_path() const {
      if (!path || path->empty()) return {};
      return {impl::widen(*path)};
    }
 
#endif
 
    friend std::ostream& operator<<(std::ostream& lhs, const source_region& rhs) {
      impl::print_to_stream(lhs, rhs);
      return lhs;
    }
  };
}
TOML_NAMESPACE_END;
 
#include "header_end.hpp"