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#pragma once
#include "object/object.h"
#include "scripting/lua/LuaFunction.h"
namespace scripting {
namespace api {
namespace util {
void convert_arg(lua_State* L, luacpp::LuaValueList& out, object* objp);
}
template <typename Ret, typename... Args>
class LuaEventCallback {
luacpp::LuaFunction _func;
void convert_args(lua_State* /*L*/, luacpp::LuaValueList& /*out*/) {}
template <typename T, typename... A>
void convert_args(lua_State* L, luacpp::LuaValueList& out, T t, A... args)
{
util::convert_arg(L, out, t);
convert_args(L, out, args...);
}
public:
explicit LuaEventCallback(const luacpp::LuaFunction& func) : _func(func) {}
void operator()(Args... args)
{
using namespace luacpp;
LuaValueList lua_args;
convert_args(_func.getLuaState(), lua_args, args...);
_func(_func.getLuaState(), lua_args);
}
};
template <typename Ret, typename... Args>
std::function<Ret(Args...)> make_lua_callback(const luacpp::LuaFunction& func)
{
return std::function<Ret(Args...)>(LuaEventCallback<Ret, Args...>(func));
}
} // namespace api
} // namespace scripting
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