/usr/include/luabind/back_reference.hpp is in libluabind-dev 0.9.1+dfsg-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | // Copyright (c) 2004 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.
#ifndef LUABIND_BACK_REFERENCE_040510_HPP
#define LUABIND_BACK_REFERENCE_040510_HPP
#include <luabind/lua_include.hpp>
#include <luabind/wrapper_base.hpp>
#include <luabind/detail/has_get_pointer.hpp>
#include <luabind/get_pointer.hpp>
#include <boost/type_traits/is_polymorphic.hpp>
#include <boost/type_traits/is_const.hpp>
#include <boost/mpl/if.hpp>
namespace luabind {
namespace detail
{
namespace mpl = boost::mpl;
template<class T>
wrap_base const* get_back_reference_aux0(T const* p, mpl::true_)
{
return dynamic_cast<wrap_base const*>(p);
}
template<class T>
wrap_base const* get_back_reference_aux0(T const*, mpl::false_)
{
return 0;
}
template<class T>
wrap_base const* get_back_reference_aux1(T const* p)
{
return get_back_reference_aux0(p, boost::is_polymorphic<T>());
}
template<class T>
wrap_base const* get_back_reference_aux2(T const& x, mpl::true_)
{
return get_back_reference_aux1(get_pointer(x));
}
template<class T>
wrap_base const* get_back_reference_aux2(T const& x, mpl::false_)
{
return get_back_reference_aux1(&x);
}
template<class T>
wrap_base const* get_back_reference(T const& x)
{
return detail::get_back_reference_aux2(
x
, has_get_pointer<T>()
);
}
} // namespace detail
template<class T>
bool get_back_reference(lua_State* L, T const& x)
{
#ifndef LUABIND_NO_RTTI
if (wrap_base const* w = detail::get_back_reference(x))
{
detail::wrap_access::ref(*w).get(L);
return true;
}
#endif
return false;
}
template<class T>
bool move_back_reference(lua_State* L, T const& x)
{
#ifndef LUABIND_NO_RTTI
if (wrap_base* w = const_cast<wrap_base*>(detail::get_back_reference(x)))
{
assert(detail::wrap_access::ref(*w).m_strong_ref.is_valid());
detail::wrap_access::ref(*w).get(L);
detail::wrap_access::ref(*w).m_strong_ref.reset();
return true;
}
#endif
return false;
}
} // namespace luabind
#endif // LUABIND_BACK_REFERENCE_040510_HPP
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