/usr/include/luabind/iterator_policy.hpp is in libluabind-dev 0.9.1+dfsg-11.
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 Daniel Wallin 2007. 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_ITERATOR_POLICY__071111_HPP
# define LUABIND_ITERATOR_POLICY__071111_HPP
# include <luabind/config.hpp>
# include <luabind/detail/policy.hpp>
# include <luabind/detail/convert_to_lua.hpp>
namespace luabind { namespace detail {
template <class Iterator>
struct iterator
{
static int next(lua_State* L)
{
iterator* self = static_cast<iterator*>(
lua_touserdata(L, lua_upvalueindex(1)));
if (self->first != self->last)
{
convert_to_lua(L, *self->first);
++self->first;
}
else
{
lua_pushnil(L);
}
return 1;
}
static int destroy(lua_State* L)
{
iterator* self = static_cast<iterator*>(lua_touserdata(L, 1));
self->~iterator();
return 0;
}
iterator(Iterator first, Iterator last)
: first(first)
, last(last)
{}
Iterator first;
Iterator last;
};
template <class Iterator>
int make_range(lua_State* L, Iterator first, Iterator last)
{
void* storage = lua_newuserdata(L, sizeof(iterator<Iterator>));
lua_newtable(L);
lua_pushcclosure(L, iterator<Iterator>::destroy, 0);
lua_setfield(L, -2, "__gc");
lua_setmetatable(L, -2);
lua_pushcclosure(L, iterator<Iterator>::next, 1);
new (storage) iterator<Iterator>(first, last);
return 1;
}
template <class Container>
int make_range(lua_State* L, Container& container)
{
return make_range(L, container.begin(), container.end());
}
struct iterator_converter
{
typedef iterator_converter type;
template <class Container>
void apply(lua_State* L, Container& container)
{
make_range(L, container);
}
template <class Container>
void apply(lua_State* L, Container const& container)
{
make_range(L, container);
}
};
struct iterator_policy : conversion_policy<0>
{
static void precall(lua_State*, index_map const&)
{}
static void postcall(lua_State*, index_map const&)
{}
template <class T, class Direction>
struct apply
{
typedef iterator_converter type;
};
};
}} // namespace luabind::detail
namespace luabind { namespace {
LUABIND_ANONYMOUS_FIX detail::policy_cons<
detail::iterator_policy, detail::null_type> return_stl_iterator;
}} // namespace luabind::unnamed
#endif // LUABIND_ITERATOR_POLICY__071111_HPP
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