mysql5/mysql-5.7.27/client/base/abstract_value_option.h

76 lines
2.2 KiB
C++

/*
Copyright (c) 2014, 2015 Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
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 <my_getopt.h>
#include "abstract_option.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 desription 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;
}
}
}
}
}
#endif