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https://github.com/ChaiScript/ChaiScript.git
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cff6a0aced
I initially tried to use the existing .clang-format file, but it does not match the code style (at least with clang-format 11) and the formatting is not consistent across files. Therefore, I decided to rewrite the .clang-format with some personal preferences. Used command find . -iname "*.hpp" -o -iname "*.cpp" | xargs clang-format -i -style=file
114 lines
3.3 KiB
C++
114 lines
3.3 KiB
C++
// This file is distributed under the BSD License.
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// See "license.txt" for details.
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// Copyright 2009-2012, Jonathan Turner (jonathan@emptycrate.com)
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// Copyright 2009-2018, Jason Turner (jason@emptycrate.com)
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// http://www.chaiscript.com
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#ifndef CHAISCRIPT_WINDOWS_HPP_
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#define CHAISCRIPT_WINDOWS_HPP_
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#include <string>
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#ifdef CHAISCRIPT_WINDOWS
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#define VC_EXTRA_LEAN
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#if !defined(WIN32_LEAN_AND_MEAN)
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#define WIN32_LEAN_AND_MEAN
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#endif
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#include <windows.h>
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#endif
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namespace chaiscript {
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namespace detail {
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struct Loadable_Module {
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template<typename T>
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static std::wstring to_wstring(const T &t_str) {
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return std::wstring(t_str.begin(), t_str.end());
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}
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template<typename T>
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static std::string to_string(const T &t_str) {
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return std::string(t_str.begin(), t_str.end());
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}
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#if defined(_UNICODE) || defined(UNICODE)
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template<typename T>
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static std::wstring to_proper_string(const T &t_str) {
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return to_wstring(t_str);
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}
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#else
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template<typename T>
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static std::string to_proper_string(const T &t_str) {
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return to_string(t_str);
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}
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#endif
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static std::string get_error_message(DWORD t_err) {
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using StringType = LPTSTR;
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#if defined(_UNICODE) || defined(UNICODE)
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std::wstring retval = L"Unknown Error";
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#else
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std::string retval = "Unknown Error";
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#endif
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StringType lpMsgBuf = nullptr;
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if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
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nullptr,
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t_err,
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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reinterpret_cast<StringType>(&lpMsgBuf),
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0,
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nullptr)
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!= 0
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&& lpMsgBuf) {
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retval = lpMsgBuf;
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LocalFree(lpMsgBuf);
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}
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return to_string(retval);
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}
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struct DLModule {
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explicit DLModule(const std::string &t_filename)
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: m_data(LoadLibrary(to_proper_string(t_filename).c_str())) {
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if (!m_data) {
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throw chaiscript::exception::load_module_error(get_error_message(GetLastError()));
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}
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}
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DLModule(DLModule &&) = default;
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DLModule &operator=(DLModule &&) = default;
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DLModule(const DLModule &) = delete;
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DLModule &operator=(const DLModule &) = delete;
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~DLModule() { FreeLibrary(m_data); }
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HMODULE m_data;
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};
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template<typename T>
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struct DLSym {
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DLSym(DLModule &t_mod, const std::string &t_symbol)
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: m_symbol(reinterpret_cast<T>(GetProcAddress(t_mod.m_data, t_symbol.c_str()))) {
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if (!m_symbol) {
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throw chaiscript::exception::load_module_error(get_error_message(GetLastError()));
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}
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}
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T m_symbol;
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};
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Loadable_Module(const std::string &t_module_name, const std::string &t_filename)
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: m_dlmodule(t_filename)
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, m_func(m_dlmodule, "create_chaiscript_module_" + t_module_name)
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, m_moduleptr(m_func.m_symbol()) {
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}
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DLModule m_dlmodule;
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DLSym<Create_Module_Func> m_func;
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ModulePtr m_moduleptr;
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};
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} // namespace detail
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} // namespace chaiscript
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#endif
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