eqemu-server/libs/luabind/luabind/copy_policy.hpp
2019-10-12 21:07:06 -07:00

62 lines
1.3 KiB
C++

// Copyright Daniel Wallin 2008. Use, modification and distribution is
// subject to the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifndef LUABIND_COPY_POLICY_081021_HPP
# define LUABIND_COPY_POLICY_081021_HPP
# include <luabind/detail/policy.hpp>
namespace luabind {
namespace detail
{
struct copy_converter
{
template <class T>
void apply(lua_State* L, T const& x)
{
value_converter().apply(L, x);
}
template <class T>
void apply(lua_State* L, T* x)
{
if (!x)
lua_pushnil(L);
else
apply(L, *x);
}
};
template <int N>
struct copy_policy : conversion_policy<N>
{
static void precall(lua_State*, index_map const&)
{}
static void postcall(lua_State*, index_map const&)
{}
template <class T, class Direction>
struct apply
{
typedef copy_converter type;
};
};
} // namespace detail
template <int N>
detail::policy_cons<detail::copy_policy<N>, detail::null_type>
copy(LUABIND_PLACEHOLDER_ARG(N))
{
return detail::policy_cons<detail::copy_policy<N>, detail::null_type>();
}
} // namespace luabind
#endif // LUABIND_COPY_POLICY_081021_HPP