Edit: /usr/include/luabind/wrapper_base.hpp (5987B)
// Copyright (c) 2003 Daniel Wallin and Arvid Norberg
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
// ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
// PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
// SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
// ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
// OR OTHER DEALINGS IN THE SOFTWARE.
#if !BOOST_PP_IS_ITERATING
#ifndef LUABIND_WRAPPER_BASE_HPP_INCLUDED
#define LUABIND_WRAPPER_BASE_HPP_INCLUDED
#include
#include
#include
#include
#include
#include
#include
namespace luabind
{
namespace detail
{
struct wrap_access;
}
struct wrapped_self_t: weak_ref
{
handle m_strong_ref;
};
struct wrap_base
{
friend struct detail::wrap_access;
wrap_base() {}
#define BOOST_PP_ITERATION_PARAMS_1 (4, (0, LUABIND_MAX_ARITY, , 1))
#include BOOST_PP_ITERATE()
private:
wrapped_self_t m_self;
};
#define BOOST_PP_ITERATION_PARAMS_1 (4, (0, LUABIND_MAX_ARITY, , 2))
#include BOOST_PP_ITERATE()
namespace detail
{
struct wrap_access
{
static wrapped_self_t const& ref(wrap_base const& b)
{
return b.m_self;
}
static wrapped_self_t& ref(wrap_base& b)
{
return b.m_self;
}
};
}
}
#endif // LUABIND_WRAPPER_BASE_HPP_INCLUDED
#else
#if BOOST_PP_ITERATION_FLAGS() == 1
#define LUABIND_TUPLE_PARAMS(z, n, data) const A##n *
#define LUABIND_OPERATOR_PARAMS(z, n, data) const A##n & a##n
template
typename boost::mpl::if_
, luabind::detail::proxy_member_void_caller >
, luabind::detail::proxy_member_caller > >::type
call(char const* name BOOST_PP_COMMA_IF(BOOST_PP_ITERATION()) BOOST_PP_ENUM(BOOST_PP_ITERATION(), LUABIND_OPERATOR_PARAMS, _), detail::type_* = 0) const
{
typedef boost::tuples::tuple tuple_t;
#if BOOST_PP_ITERATION() == 0
tuple_t args;
#else
tuple_t args(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(), &a));
#endif
typedef typename boost::mpl::if_
, luabind::detail::proxy_member_void_caller >
, luabind::detail::proxy_member_caller > >::type proxy_type;
// this will be cleaned up by the proxy object
// once the call has been made
// TODO: what happens if this virtual function is
// dispatched from a lua thread where the state
// pointer is different?
// get the function
lua_State* L = m_self.state();
m_self.get(L);
assert(!lua_isnil(L, -1));
detail::do_call_member_selection(L, name);
if (lua_isnil(L, -1))
{
lua_pop(L, 1);
throw std::runtime_error("Attempt to call nonexistent function");
}
// push the self reference as the first parameter
m_self.get(L);
// now the function and self objects
// are on the stack. These will both
// be popped by pcall
return proxy_type(L, args);
}
#undef LUABIND_CALL_MEMBER_NAME
#undef LUABIND_OPERATOR_PARAMS
#undef LUABIND_TUPLE_PARAMS
#else // free call_member forwardarding functions
#define N BOOST_PP_ITERATION()
#define LUABIND_TUPLE_PARAMS(z, n, data) const A##n *
#define LUABIND_OPERATOR_PARAMS(z, n, data) const A##n & a##n
template<
class R
BOOST_PP_ENUM_TRAILING_PARAMS(N, class A)
>
typename boost::mpl::if_<
boost::is_void
, detail::proxy_member_void_caller<
boost::tuples::tuple<
BOOST_PP_ENUM(N, LUABIND_TUPLE_PARAMS, _)
>
>
, detail::proxy_member_caller<
R
, boost::tuples::tuple<
BOOST_PP_ENUM(N, LUABIND_TUPLE_PARAMS, _)
>
>
>::type
call_member(
wrap_base const* self
, char const* fn
BOOST_PP_ENUM_TRAILING_BINARY_PARAMS(N, A, &a)
, detail::type_* = 0
)
{
return self->call(
fn
BOOST_PP_ENUM_TRAILING_PARAMS(N, a)
, (detail::type_*)0
);
}
#undef LUABIND_OPERATOR_PARAMS
#undef LUABIND_TUPLE_PARAMS
#undef N
#endif
#endif