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The C and C++ Include Header Files

cat -n /usr/include/nodejs/src/node_dotenv.h

     1	#ifndef SRC_NODE_DOTENV_H_
     2	#define SRC_NODE_DOTENV_H_
     3	
     4	#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
     5	
     6	#include "util-inl.h"
     7	#include "v8.h"
     8	
     9	#include <map>
    10	
    11	namespace node {
    12	
    13	class Dotenv {
    14	 public:
    15	  enum ParseResult { Valid, FileError, InvalidContent };
    16	  struct env_file_data {
    17	    std::string path;
    18	    bool is_optional;
    19	  };
    20	
    21	  Dotenv() = default;
    22	  Dotenv(const Dotenv& d) = delete;
    23	  Dotenv(Dotenv&& d) noexcept = default;
    24	  Dotenv& operator=(Dotenv&& d) noexcept = default;
    25	  Dotenv& operator=(const Dotenv& d) = delete;
    26	  ~Dotenv() = default;
    27	
    28	  void ParseContent(const std::string_view content);
    29	  ParseResult ParsePath(const std::string_view path);
    30	  void AssignNodeOptionsIfAvailable(std::string* node_options) const;
    31	  v8::Maybe<void> SetEnvironment(Environment* env);
    32	  v8::MaybeLocal<v8::Object> ToObject(Environment* env) const;
    33	
    34	  static std::vector<env_file_data> GetDataFromArgs(
    35	      const std::vector<std::string>& args);
    36	
    37	 private:
    38	  std::map<std::string, std::string> store_;
    39	};
    40	
    41	}  // namespace node
    42	
    43	#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
    44	
    45	#endif  // SRC_NODE_DOTENV_H_