boost/libs/dll/test/template_method_linux_test.cpp
2021-10-05 21:37:46 +02:00

68 lines
1.8 KiB
C++

// Copyright 2019 Ramil Gauss.
// Copyright 2019-2021 Antony Polukhin.
//
// Distributed under 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)
#include <boost/config.hpp>
#if (__cplusplus >= 201402L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201402L)
#include <boost/dll/smart_library.hpp>
#include <boost/dll/import_mangled.hpp>
#include <boost/dll/import_class.hpp>
#include <iostream>
#include <string>
#include "../example/b2_workarounds.hpp"
#include <boost/core/lightweight_test.hpp>
namespace space {
class BOOST_SYMBOL_EXPORT my_plugin {
public:
template <typename Arg>
BOOST_SYMBOL_EXPORT int Func(); // defined in cpp_test_library.cpp
};
}
int main(int argc, char** argv) {
unsigned matches_found = 0;
boost::dll::fs::path lib_path = b2_workarounds::first_lib_from_argv(argc, argv);
boost::dll::experimental::smart_library lib(lib_path);
auto storage = lib.symbol_storage().get_storage();
for (auto& s : storage) {
auto& demangled = s.demangled;
BOOST_TEST(demangled.data());
auto beginFound = demangled.find("Func<");
if (beginFound == std::string::npos)
continue;
auto endFound = demangled.find("(");
if (endFound == std::string::npos)
continue;
// Usually "Func<space::my_plugin>" on Linux, "Func<class space::my_plugin>" on Windows.
auto funcName = demangled.substr(beginFound, endFound - beginFound);
std::cout << "Function name: " << funcName.data() << std::endl;
auto typeIndexFunc = boost::dll::experimental::import_mangled<space::my_plugin, int()>(lib, funcName);
space::my_plugin cl;
BOOST_TEST_EQ(typeIndexFunc(&cl), 42);
++matches_found;
break;
}
BOOST_TEST_EQ(matches_found, 1);
return boost::report_errors();
}
#else
int main() {}
#endif