itemsyndrome hook writing attempt

//I HAVE NO IDEA WHAT I'M DOING.

#include "Core.h"
#include "Console.h"
#include "Export.h"
#include "PluginManager.h"
#include "modules/Items.h"
#include <VTableInterpose.h>
#include "df/general_ref.h" //no idea if this is right

using namespace DFHack;
using namespace df::enums;

using df::global::world;

static command_result tweak(color_ostream &out, vector <string> & parameters);

DFHACK_PLUGIN("itemsyndrome_hooks");

DEFINE_LUA_EVENT_1(onItemEquipped,unitID)

DFHACK_PLUGIN_LUA_EVENTS {
    DFHACK_LUA_EVENT(itemEquipped),
    DFHACK_LUA_END
};

struct itemsyndrome_hook : df::general_ref_unit_holderst{
    typedef df::general_ref_unit_holderst interpose_base;
    DEFINE_VMETHOD_INTERPOSE(void,getUnit,(int16_t unitID)) //no idea if this argument thing will work at all, no idea where the plugins get them :X Sometimes I just can't find things...
    {
        CoreSuspendClaimer suspend;
        color_ostream_proxy out(Core::getInstance().getConsole());
        bool call_native=true;
        onItemEquipped(out,this,unitID);
        if(call_native)
            INTERPOSE_NEXT(itemEquipped)(unitID);
        itemEquipped(out,this);
    }
};
IMPLEMENT_VMETHOD_INTERPOSE(itemsyndrome_hook, getUnit);