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/*************************************************** | |
* File add_static_make.h | |
* Copyright (C) 2021-6-19 ModernCpp.ir . All Rights Reserved. * | |
***************************************************/ | |
#ifndef ADD_STATIC_MAKE_H | |
#define ADD_STATIC_MAKE_H | |
#include <memory> | |
template<class B, class T = std::nullptr_t> | |
class add_static_make | |
{ | |
public: | |
add_static_make() = default; | |
template<class ... Args> | |
static std::shared_ptr<B> make(Args... agrs) | |
{ | |
return std::make_shared< | |
typename std::conditional<std::is_same<T, std::nullptr_t>::value, B, T>::type>(std::forward<Args>(agrs)...); | |
} | |
}; | |
#endif // ADD_STATIC_MAKE_H |
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// Example program | |
#include <iostream> | |
#include <string> | |
/*************************************************** | |
* File empire_command_interface.h | |
* Copyright (C) 2021-6-5 ModernCpp.ir . All Rights Reserved. * | |
***************************************************/ | |
#ifndef EMPIRE_COMMAND_INTERFACE_H | |
#define EMPIRE_COMMAND_INTERFACE_H | |
#include <string> | |
class empire_command_interface | |
{ | |
public: | |
empire_command_interface(std::string* msg){} | |
virtual std::string execute() = 0; | |
virtual std::string name() = 0; | |
}; | |
#endif // EMPIRE_COMMAND_INTERFACE_H | |
/*************************************************** | |
* File add_static_make.h | |
* Copyright (C) 2021-6-19 ModernCpp.ir . All Rights Reserved. * | |
***************************************************/ | |
#ifndef ADD_STATIC_MAKE_H | |
#define ADD_STATIC_MAKE_H | |
#include <memory> | |
template<class B, class T = std::nullptr_t> | |
class add_static_make | |
{ | |
public: | |
add_static_make() = default; | |
template<class ... Args> | |
static std::shared_ptr<B> make(Args... agrs) | |
{ | |
return std::make_shared< | |
typename std::conditional<std::is_same<T, std::nullptr_t>::value, B, T>::type>(std::forward<Args>(agrs)...); | |
} | |
}; | |
#endif // ADD_STATIC_MAKE_H | |
/*************************************************** | |
* File get_kingdom_connections_info_command.h | |
* Copyright (C) 2021-6-10 ModernCpp.ir . All Rights Reserved. * | |
***************************************************/ | |
#ifndef GET_KINGDOM_CONNECTIONS_INFO_COMMAND_H | |
#define GET_KINGDOM_CONNECTIONS_INFO_COMMAND_H | |
#include <memory> | |
class get_kingdom_connections_info_command | |
: public empire_command_interface, | |
public add_static_make<empire_command_interface, get_kingdom_connections_info_command> | |
{ | |
public: | |
get_kingdom_connections_info_command(std::string* msg):empire_command_interface(msg) {} | |
// empire_command_interface interface | |
public: | |
std::string execute() override | |
{ | |
return ""; | |
} | |
std::string name() override | |
{ | |
return "get_kingdom_connections_info_command"; | |
} | |
}; | |
#endif // GET_KINGDOM_CONNECTIONS_INFO_COMMAND_H | |
/*************************************************** | |
* File restrict_gate_command.h | |
* Copyright (C) 2021-6-10 ModernCpp.ir . All Rights Reserved. * | |
***************************************************/ | |
#ifndef RESTRICT_GATE_COMMAND_H | |
#define RESTRICT_GATE_COMMAND_H | |
#include <memory> | |
class restrict_gate_command | |
: public empire_command_interface, | |
public add_static_make<empire_command_interface, restrict_gate_command> | |
{ | |
public: | |
explicit restrict_gate_command(std::string* msg):empire_command_interface(msg) {} | |
// static std::shared_ptr<restrict_gate_command> make(); | |
// empire_command_interface interface | |
public: | |
std::string execute() override | |
{ | |
return ""; | |
} | |
std::string name() override | |
{ | |
return "restrict_gate_command"; | |
} | |
}; | |
#endif // RESTRICT_GATE_COMMAND_H | |
int main() | |
{ | |
std::string msg("test command"); | |
auto rgc = restrict_gate_command::make(&msg); | |
auto gkcic = get_kingdom_connections_info_command::make(&msg); | |
std::cout << rgc->name() << std::endl; | |
std::cout << gkcic->name() << std::endl; | |
} |
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