1 // Copyright (c) 2003 Daniel Wallin and Arvid Norberg 2 3 // Permission is hereby granted, free of charge, to any person obtaining a 4 // copy of this software and associated documentation files (the "Software"), 5 // to deal in the Software without restriction, including without limitation 6 // the rights to use, copy, modify, merge, publish, distribute, sublicense, 7 // and/or sell copies of the Software, and to permit persons to whom the 8 // Software is furnished to do so, subject to the following conditions: 9 10 // The above copyright notice and this permission notice shall be included 11 // in all copies or substantial portions of the Software. 12 13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF 14 // ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 15 // TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 16 // PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT 17 // SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR 18 // ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 19 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE 21 // OR OTHER DEALINGS IN THE SOFTWARE. 22 23 #if !BOOST_PP_IS_ITERATING 24 25 # include <luabind/detail/signature_match.hpp> 26 27 #ifndef LUABIND_CALC_ARITY_HPP_INCLUDED 28 #define LUABIND_CALC_ARITY_HPP_INCLUDED 29 30 #define LUABIND_FIND_CONV(z,n,text) typedef typename find_conversion_policy<n + 1, Policies>::type p##n; 31 #define LUABIND_CALC_ARITY(z,n,text) + BOOST_PP_CAT(p,n)::has_arg 32 33 namespace luabind { namespace detail 34 { 35 template<int N> struct calc_arity; 36 37 #define BOOST_PP_ITERATION_PARAMS_1 (4, (0, LUABIND_MAX_ARITY, <luabind/detail/calc_arity.hpp>, 1)) 38 #include BOOST_PP_ITERATE() 39 }} 40 41 #undef LUABIND_CALC_ARITY 42 #undef LUABIND_FIND_CONV 43 44 45 #endif // LUABIND_CALC_ARITY_HPP_INCLUDED 46 47 #else // BOOST_PP_ITERATE 48 49 template<> 50 struct calc_arity<BOOST_PP_ITERATION()> 51 { 52 template<BOOST_PP_ENUM_PARAMS(LUABIND_MAX_ARITY, class A), class Policies> applycalc_arity53 static int apply(constructor<BOOST_PP_ENUM_PARAMS(LUABIND_MAX_ARITY, A)>, Policies*) 54 { 55 BOOST_PP_REPEAT(BOOST_PP_ITERATION(), LUABIND_FIND_CONV, _) 56 return 0 BOOST_PP_REPEAT(BOOST_PP_ITERATION(), LUABIND_CALC_ARITY, _); 57 } 58 }; 59 60 #endif 61 62