get_reflection_handler.h

#pragma once
 
#include "find_reflection_handler.h"
#include <cgv/config/cpp_version.h>
 
#include "lib_begin.h"
 
namespace cgv {
    namespace reflect {
 
class CGV_API get_reflection_handler : public find_reflection_handler
{
protected:
    void* value_ptr;
    std::string value_type;
    abst_reflection_traits* value_rt;
public:
    get_reflection_handler(const std::string& _target,
                                const std::string& _value_type,
                                void* _value_ptr,
                                abst_reflection_traits* _value_rt = 0);
    get_reflection_handler(const std::string& _target, void* _value_ptr, abst_reflection_traits* _value_rt);
    void process_member_void(const std::string& member_name, void* member_ptr, 
                             abst_reflection_traits* rt, GroupKind group_kind, unsigned grp_size);
};
 
#ifdef REFLECT_TRAITS_WITH_DECLTYPE
 
template <typename T, typename Q>
    bool get_member(T& variable, const std::string& target, Q& value) {
            reflection_traits_info<Q>::traits_type rt_value;
#else
namespace compatibility {
    template <typename T, typename Q, typename RQ>
    bool get_member_impl(T& variable, const std::string& target, Q& value, RQ&) {
        RQ rt_value;
#endif
        get_reflection_handler grh(target, &value, &rt_value);
        grh.reflect_member("", variable);
        return grh.found_valid_target();
    }
#ifndef REFLECT_TRAITS_WITH_DECLTYPE
    template <bool use_get, typename T, typename Q>
    struct get_member_dispatch {           static bool get_member(T& variable, const std::string& target, Q& value) { 
        return get_member_impl(variable, target, value, reflection_traits<Q>()); } };
    template <typename T, typename Q>
    struct get_member_dispatch<true,T,Q> { static bool get_member(T& variable, const std::string& target, Q& value) { 
        return get_member_impl(variable, target, value, get_reflection_traits(value)); } };
}
 
 
template <typename T, typename Q>
bool get_member(T& variable, const std::string& target, Q& value)
{
    return compatibility::get_member_dispatch<reflection_traits_info<Q>::use_get,T,Q>::get_member(variable, target, value);
}
#endif
    }
}
 
#include <cgv/config/lib_end.h>