Class Flag

tensorflow/lite/tools/command_line_flags.h:65–103

A description of a single command line flag, holding its name, type, usage text, and a pointer to the corresponding variable.

// A description of a single command line flag, holding its name, type, usage
// text, and a pointer to the corresponding variable.
class Flag {
 public:
  template <typename T>
  static Flag CreateFlag(const char* name, T* val, const char* usage) {
    return Flag(name, [val](const T& v) { *val = v; }, *val, usage);
  }

  Flag(const char* name, const std::function<void(const int32_t&)>& hook,
       int32_t default_value, const std::string& usage_text);
  Flag(const char* name, const std::function<void(const int64_t&)>& hook,
       int64_t default_value, const std::string& usage_text);
  Flag(const char* name, const std::function<void(const float&)>& hook,
       float default_value, const std::string& usage_text);
  Flag(const char* name, const std::function<void(const bool&)>& hook,
       bool default_value, const std::string& usage_text);
  Flag(const char* name, const std::function<void(const std::string&)>& hook,
       const std::string& default_value, const std::string& usage_text);

 private:
  friend class Flags;

  bool Parse(const std::string& arg, bool* value_parsing_ok) const;

  std::string name_;
  enum {
    TYPE_INT32,
    TYPE_INT64,
    TYPE_BOOL,
    TYPE_STRING,
    TYPE_FLOAT,
  } type_;

  std::string GetTypeName() const;

  std::function<bool(const std::string&)> value_hook_;
  std::string default_for_display_;

  std::string usage_text_;
};

class Flags {
 public: