ceph/src/boost/libs/hana/test/experimental/printable/metafunction.cpp

   1 // Copyright Jason Rice 2016
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
   4
   5 #include <boost/hana/assert.hpp>
   6 #include <boost/hana/experimental/printable.hpp>
   7 #include <boost/hana/integral_constant.hpp>
   8 #include <boost/hana/type.hpp>
   9
  10 #include <regex>
  11 #include <sstream>
  12 namespace hana = boost::hana;
  13
  14 namespace foo {
  15     template <typename T> struct my_template { };
  16     template <typename ...> struct my_mf { struct type; };
  17     struct my_mf_class { template <typename ...> struct apply { struct type; }; };
  18 }
  19
  20 int main() {
  21     {
  22         std::ostringstream ss;
  23         ss << hana::experimental::print(
  24             hana::template_<foo::my_template>
  25         );
  26         BOOST_HANA_RUNTIME_CHECK(std::regex_match(ss.str(),
  27             std::regex("template<(?:struct )?foo::my_template>")));
  28     }
  29     {
  30         std::ostringstream ss;
  31         ss << hana::experimental::print(
  32             hana::metafunction<foo::my_mf>
  33         );
  34         BOOST_HANA_RUNTIME_CHECK(std::regex_match(ss.str(),
  35             std::regex("metafunction<(?:struct )?foo::my_mf>")));
  36     }
  37     {
  38         std::ostringstream ss;
  39         ss << hana::experimental::print(
  40             hana::metafunction_class<foo::my_mf_class>
  41         );
  42         BOOST_HANA_RUNTIME_CHECK(std::regex_match(ss.str(),
  43             std::regex("metafunction_class<(?:struct )?foo::my_mf_class>")));
  44     }
  45 }