abstract_value_option.h

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/*
   Copyright (c) 2014, 2022, Oracle and/or its affiliates.
 
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   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.
 
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   as designated in a particular file or component or in included license
   documentation.  The authors of MySQL hereby grant you an additional
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License, version 2.0, for more details.
 
   You should have received a copy of the GNU General Public License
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   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
*/
 
#ifndef ABSTRACT_VALUE_OPTION_INCLUDED
#define ABSTRACT_VALUE_OPTION_INCLUDED
 
#include <string>
 
#include "client/base/abstract_option.h"
#include "my_getopt.h"
 
namespace Mysql {
namespace Tools {
namespace Base {
namespace Options {
 
/**
  Abstract option to handle options accepting value argument.
 */
template <typename T_type>
class Abstract_value_option : public Abstract_option<T_type> {
 public:
  /**
    Sets arg_type to OPT_ARG - doesn't require argument to be specified when
    using this option.
   */
  T_type *value_optional();
 
 protected:
  /**
    Constructs new option with value argument.
    @param value Pointer to object to receive option value.
    @param var_type my_getopt internal option type.
    @param name Name of option. It is used in command line option name as
      --name.
    @param description Description of option to be printed in --help.
    @param default_value default value to be supplied to internal option
      data structure.
   */
  Abstract_value_option(void *value, ulong var_type, std::string name,
                        std::string description, uint64 default_value);
};
 
template <typename T_type>
Abstract_value_option<T_type>::Abstract_value_option(void *value,
                                                     ulong var_type,
                                                     std::string name,
                                                     std::string description,
                                                     uint64 default_value)
    : Abstract_option<T_type>(value, var_type, name, description,
                              default_value) {}
 
template <typename T_type>
T_type *Abstract_value_option<T_type>::value_optional() {
  this->m_option_structure.arg_type = OPT_ARG;
  return (T_type *)this;
}
 
}  // namespace Options
}  // namespace Base
}  // namespace Tools
}  // namespace Mysql
#endif