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)
// 3. value
object_rep* obj = static_cast<object_rep*>(lua_touserdata(L, 1));
class_rep* crep = obj->crep();
void* raw_ptr;
if (crep->has_holder())
raw_ptr = crep->extractor()(obj->ptr());
else
raw_ptr = obj->ptr();
T* ptr = reinterpret_cast<T*>(static_cast<char*>(raw_ptr) + pointer_offset);
typedef typename find_conversion_policy<1,Policies>::type converter_policy;
typename mpl::apply_wrap2<converter_policy,D,lua_to_cpp>::type converter;
ptr->*member = converter.apply(L, LUABIND_DECORATE_TYPE(D), 3);
int nret = lua_gettop(L) - nargs;
const int indices[] = { 1, nargs + nret, 3 };
policy_list_postcall<Policies>::apply(L, indices);
return nret;
}
Ret operator[](const Policies& p)
{
typedef typename find_conversion_policy<0, Policies>::type converter_policy;
typename mpl::apply_wrap2<converter_policy,Ret,lua_to_cpp>::type converter;
m_called = true;
// don't count the function and self-reference
// since those will be popped by pcall
int top = lua_gettop(L) - 2;
// pcall will pop the function and self reference
// and all the parameters
detail::push_args_from_tuple<1>::apply(L, m_args, p);
# ifdef LUABIND_CPP0x
if (pcall(L, std::tuple_size<Tuple>::value + 1, 1))
# else
if (pcall(L, boost::tuples::length<Tuple>::value + 1, 1))
# endif
{
assert(lua_gettop(L) == top + 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
}
// pops the return values from the function
stack_pop pop(L, lua_gettop(L) - top);
if (converter.match(L, LUABIND_DECORATE_TYPE(Ret), -1) < 0)
{
assert(lua_gettop(L) == top + 1);
#ifndef LUABIND_NO_EXCEPTIONS
throw cast_failed(L, typeid(Ret));
#else
cast_failed_callback_fun e = get_cast_failed_callback();
if (e) e(L, 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
}
return converter.apply(L, LUABIND_DECORATE_TYPE(Ret), -1);
}
Ret operator[](const Policies& p)
{
typedef typename detail::find_conversion_policy<0, Policies>::type converter_policy;
typename mpl::apply_wrap2<converter_policy,Ret,lua_to_cpp>::type converter;
m_called = true;
lua_State* L = m_state;
int top = lua_gettop(L);
detail::push_args_from_tuple<1>::apply(L, m_args, p);
if (m_fun(L, boost::tuples::length<Tuple>::value, 1))
{
assert(lua_gettop(L) == top - m_params + 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 the error you can use luabind::set_error_callback()");
std::terminate();
#endif
}
// pops the return values from the function call
stack_pop pop(L, lua_gettop(L) - top + m_params);
if (converter.match(L, LUABIND_DECORATE_TYPE(Ret), -1) < 0)
{
#ifndef LUABIND_NO_EXCEPTIONS
throw cast_failed(L, typeid(Ret));
#else
cast_failed_callback_fun e = get_cast_failed_callback();
if (e) e(L, typeid(Ret));
assert(0 && "the lua function's return value could not be converted."
" If you want to handle the error you can use luabind::set_error_callback()");
std::terminate();
#endif
}
return converter.apply(L, LUABIND_DECORATE_TYPE(Ret), -1);
}
inline T object_cast_impl(const Obj& obj, const Policies&)
{
if (obj.lua_state() == 0)
{
#ifndef LUABIND_NO_EXCEPTIONS
throw cast_failed(0, typeid(T));
#else
lua_State* L = obj.lua_state();
cast_failed_callback_fun e = get_cast_failed_callback();
if (e) e(L, typeid(T));
assert(0 && "object_cast failed. If you want to handle this error use luabind::set_error_callback()");
std::terminate();
#endif
}
LUABIND_CHECK_STACK(obj.lua_state());
typedef typename detail::find_conversion_policy<0, Policies>::type converter_policy;
typename mpl::apply_wrap2<converter_policy,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)
{
#ifndef LUABIND_NO_EXCEPTIONS
throw cast_failed(L, typeid(T));
#else
cast_failed_callback_fun e = get_cast_failed_callback();
if (e) e(L, typeid(T));
assert(0 && "object_cast failed. If you want to handle this error use luabind::set_error_callback()");
std::terminate();
#endif
}
#endif
return converter.apply(L, LUABIND_DECORATE_TYPE(T), -1);
}
void push_aux(lua_State* interpreter, T& value, ConverterGenerator*)
{
typedef typename boost::mpl::if_<
boost::is_reference_wrapper<T>
, BOOST_DEDUCED_TYPENAME boost::unwrap_reference<T>::type&
, T
>::type unwrapped_type;
typename mpl::apply_wrap2<
ConverterGenerator,unwrapped_type,cpp_to_lua
>::type cv;
cv.apply(
interpreter
, boost::implicit_cast<
BOOST_DEDUCED_TYPENAME boost::unwrap_reference<T>::type&
>(value)
);
}
boost::optional<T> object_cast_nothrow_impl(const Obj& obj, const Policies&)
{
typedef typename detail::find_conversion_policy<0, Policies>::type converter_policy;
typename mpl::apply_wrap2<converter_policy,T,lua_to_cpp>::type converter;
if (obj.lua_state() == 0) return boost::optional<T>();
LUABIND_CHECK_STACK(obj.lua_state());
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
# ifdef LUABIND_INVOKE_MEMBER
invoke_member
# else
invoke_normal
# endif
(
lua_State* L, F const& f, Signature, Policies const&, mpl::long_<N>
# ifdef LUABIND_INVOKE_VOID
, mpl::true_
# else
, mpl::false_
# endif
)
{
typedef typename mpl::begin<Signature>::type first;
# ifndef LUABIND_INVOKE_VOID
typedef typename mpl::deref<first>::type result_type;
typedef typename find_conversion_policy<0, Policies>::type result_policy;
typename mpl::apply_wrap2<
result_policy, result_type, cpp_to_lua>::type result_converter;
# endif
# if N > 0
# define BOOST_PP_LOCAL_MACRO(n) LUABIND_INVOKE_DECLARE_CONVERTER(n)
# define BOOST_PP_LOCAL_LIMITS (0,N-1)
# include BOOST_PP_LOCAL_ITERATE()
# endif
int const arguments = lua_gettop(L);
# ifndef LUABIND_INVOKE_VOID
result_converter.apply(
L,
# endif
# ifdef LUABIND_INVOKE_MEMBER
(c0.apply(L, LUABIND_DECORATE_TYPE(a0), index0).*f)(
BOOST_PP_ENUM(BOOST_PP_DEC(N), LUABIND_INVOKE_ARG, BOOST_PP_INC)
)
# else
# define LUABIND_INVOKE_IDENTITY(x) x
f(
BOOST_PP_ENUM(N, LUABIND_INVOKE_ARG, LUABIND_INVOKE_IDENTITY)
)
# undef LUABIND_INVOKE_IDENTITY
# endif
# ifndef LUABIND_INVOKE_VOID
)
# endif
;
# if N > 0
# define BOOST_PP_LOCAL_MACRO(n) LUABIND_INVOKE_CONVERTER_POSTCALL(n)
# define BOOST_PP_LOCAL_LIMITS (0,N-1)
# include BOOST_PP_LOCAL_ITERATE()
# endif
int const results = lua_gettop(L) - arguments;
int const indices[] = {
arguments + results BOOST_PP_ENUM_TRAILING_PARAMS(N, index)
};
policy_list_postcall<Policies>::apply(L, indices);
return maybe_yield(L, results, (Policies*)0);
}