Ret operator[](const Policies& p)
{
typedef typename find_conversion_policy<0, Policies>::type converter_policy;
typename converter_policy::template generate_converter<Ret, lua_to_cpp>::type converter;
m_called = true;
lua_State* L = m_obj->lua_state();
detail::stack_pop popper(L, 2); // pop the return value and the self reference
// get the function
m_obj->pushvalue();
lua_pushstring(L, m_member_name);
lua_gettable(L, -2);
// push the self-object
m_obj->pushvalue();
detail::push_args_from_tuple<1>::apply(L, m_args, p);
if (lua_pcall(L, boost::tuples::length<Tuple>::value + 1, 1, 0))
{
#ifndef LUABIND_NO_EXCEPTIONS
throw error(L);
#else
error_callback_fun e = detail::error_callback::get().err;
if (e) e(L);
assert(0 && "the lua function threw an error and exceptions are disabled."
"If you want to handle this error use luabind::set_error_callback()");
std::terminate();
#endif
}
#ifndef LUABIND_NO_ERROR_CHECKING
if (converter.match(L, LUABIND_DECORATE_TYPE(Ret), -1) < 0)
{
#ifndef LUABIND_NO_EXCEPTIONS
throw cast_failed(L, LUABIND_TYPEID(Ret));
#else
cast_failed_callback_fun e = detail::error_callback::get().cast;
if (e) e(L, LUABIND_TYPEID(Ret));
assert(0 && "the lua function's return value could not be converted."
"If you want to handle this error use luabind::set_error_callback()");
std::terminate();
#endif
}
#endif
return converter.apply(L, LUABIND_DECORATE_TYPE(Ret), -1);
}
boost::optional<T> object_cast_nothrow_impl(const Obj& obj, const Policies&)
{
typedef typename detail::find_conversion_policy<0, Policies>::type converter_policy;
typename converter_policy::template generate_converter<T, lua_to_cpp>::type converter;
obj.pushvalue();
lua_State* L = obj.lua_state();
detail::stack_pop p(L, 1);
#ifndef LUABIND_NO_ERROR_CHECKING
if (converter.match(L, LUABIND_DECORATE_TYPE(T), -1) < 0)
return boost::optional<T>();
#endif
return boost::optional<T>(converter.apply(L, LUABIND_DECORATE_TYPE(T), -1));
}
int operator()(lua_State* L, int pointer_offset, D T::*member)
{
int nargs = lua_gettop(L);
// parameters on the lua stack:
// 1. object_rep
// 2. key (property name)
object_rep* obj = static_cast<object_rep*>(lua_touserdata(L, 1));
T* ptr = reinterpret_cast<T*>(static_cast<char*>(obj->ptr()) + pointer_offset);
typedef typename find_conversion_policy<0,Policies>::type converter_policy;
typename converter_policy::template generate_converter<D,cpp_to_lua>::type converter;
converter.apply(L, ptr->*member);
int nret = lua_gettop(L) - nargs;
const int indices[] = { 1, nargs + nret };
policy_list_postcall<Policies>::apply(L, indices);
return nret;
}
Ret operator[](const Policies& p)
{
typedef typename detail::find_conversion_policy<0, Policies>::type converter_policy;
typename converter_policy::template generate_converter<Ret, lua_to_cpp>::type converter;
m_called = true;
lua_State* L = m_func->lua_state();
#ifndef LUABIND_NO_ERROR_CHECKING
if (L == 0)
{
#ifndef LUABIND_NO_EXCEPTIONS
throw error(L);
#else
error_callback_fun e = get_error_callback();
if (e) e(L);
/*assert(0 && "tried to call uninitialized functor object."
"if you want to handle this error use luabind::set_error_callback()");
std::terminate();*/
#endif
}
#endif
detail::stack_pop popper(L, 1); // pop the return value
// get the function
m_func->pushvalue();
detail::push_args_from_tuple<1>::apply(L, m_args, p);
if (pcall(L, boost::tuples::length<Tuple>::value, 1))
{
#ifndef LUABIND_NO_EXCEPTIONS
throw error(L);
#else
error_callback_fun e = get_error_callback();
if (e) e(L);
/*assert(0 && "the lua function threw an error and exceptions are disabled."
"if you want to handle this error use luabind::set_error_callback()");
std::terminate();*/
#endif
}
#ifndef LUABIND_NO_ERROR_CHECKING
if (converter.match(L, LUABIND_DECORATE_TYPE(Ret), -1) < 0)
{
#ifndef LUABIND_NO_EXCEPTIONS
throw cast_failed(L, LUABIND_TYPEID(Ret));
#else
cast_failed_callback_fun e = get_cast_failed_callback();
if (e) e(L, LUABIND_TYPEID(Ret));
/*assert(0 && "the lua function's return value could not be converted."
"if you want to handle this error use luabind::set_error_callback()");
std::terminate();*/
#endif
}
#endif
return converter.apply(L, LUABIND_DECORATE_TYPE(Ret), -1);
}
