ceph/src/boost/boost/describe/descriptor_by_name.hpp

   1 #ifndef BOOST_DESCRIBE_DESCRIPTOR_BY_NAME_HPP_INCLUDED
   2 #define BOOST_DESCRIBE_DESCRIPTOR_BY_NAME_HPP_INCLUDED
   3
   4 // Copyright 2021 Peter Dimov
   5 // Distributed under the Boost Software License, Version 1.0.
   6 // https://www.boost.org/LICENSE_1_0.txt
   7
   8 #include <boost/describe/detail/cx_streq.hpp>
   9 #include <boost/describe/detail/config.hpp>
  10
  11 #if defined(BOOST_DESCRIBE_CXX14)
  12
  13 #include <boost/mp11/algorithm.hpp>
  14 #include <boost/mp11/bind.hpp>
  15 #include <boost/mp11/integral.hpp>
  16
  17 namespace boost
  18 {
  19 namespace describe
  20 {
  21
  22 namespace detail
  23 {
  24
  25 template<class D, class N> using match_by_name = mp11::mp_bool<cx_streq(N::name(), D::name)>;
  26
  27 #define BOOST_DESCRIBE_MAKE_NAME_IMPL2(s, k) struct _boost_name_##s##_##k { static constexpr char const * name() { return #s; } }
  28 #define BOOST_DESCRIBE_MAKE_NAME_IMPL(s, k) BOOST_DESCRIBE_MAKE_NAME_IMPL2(s, k)
  29
  30 } // namespace detail
  31
  32 #define BOOST_DESCRIBE_MAKE_NAME(s) BOOST_DESCRIBE_MAKE_NAME_IMPL(s, __LINE__)
  33
  34 template<class L, class N> using descriptor_by_name = mp11::mp_at<L, mp11::mp_find_if_q<L, mp11::mp_bind_back<detail::match_by_name, N>>>;
  35
  36 } // namespace describe
  37 } // namespace boost
  38
  39 #endif // defined(BOOST_DESCRIBE_CXX14)
  40
  41 #endif // #ifndef BOOST_DESCRIBE_DESCRIPTOR_BY_NAME_HPP_INCLUDED