// Copyright 2008 Google Inc. // All Rights Reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Type utilities needed for implementing typed and type-parameterized // tests. // IWYU pragma: private, include "gtest/gtest.h" // IWYU pragma: friend gtest/.* // IWYU pragma: friend gmock/.* #ifndef GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_TYPE_UTIL_H_ #define GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_TYPE_UTIL_H_ #include <string> #include <type_traits> #include <typeinfo> #include "gtest/internal/gtest-port.h" // #ifdef __GNUC__ is too general here. It is possible to use gcc without using // libstdc++ (which is where cxxabi.h comes from). #if GTEST_HAS_CXXABI_H_ #include <cxxabi.h> #elif defined(__HP_aCC) #include <acxx_demangle.h> #endif // GTEST_HASH_CXXABI_H_ namespace testing { namespace internal { // Canonicalizes a given name with respect to the Standard C++ Library. // This handles removing the inline namespace within `std` that is // used by various standard libraries (e.g., `std::__1`). Names outside // of namespace std are returned unmodified. inline std::string CanonicalizeForStdLibVersioning(std::string s) { … } #if GTEST_HAS_RTTI // GetTypeName(const std::type_info&) returns a human-readable name of type T. inline std::string GetTypeName(const std::type_info& type) { const char* const name = type.name(); #if GTEST_HAS_CXXABI_H_ || defined(__HP_aCC) int status = 0; // gcc's implementation of typeid(T).name() mangles the type name, // so we have to demangle it. #if GTEST_HAS_CXXABI_H_ using abi::__cxa_demangle; #endif // GTEST_HAS_CXXABI_H_ char* const readable_name = __cxa_demangle(name, nullptr, nullptr, &status); const std::string name_str(status == 0 ? readable_name : name); free(readable_name); return CanonicalizeForStdLibVersioning(name_str); #elif defined(_MSC_VER) // Strip struct and class due to differences between // MSVC and other compilers. std::pair<int,bool> is printed as // "struct std::pair<int,bool>" when using MSVC vs "std::pair<int, bool>" with // other compilers. std::string s = name; // Only strip the leading "struct " and "class ", so uses rfind == 0 to // ensure that if (s.rfind("struct ", 0) == 0) { s = s.substr(strlen("struct ")); } else if (s.rfind("class ", 0) == 0) { s = s.substr(strlen("class ")); } return s; #else return name; #endif // GTEST_HAS_CXXABI_H_ || __HP_aCC } #endif // GTEST_HAS_RTTI // GetTypeName<T>() returns a human-readable name of type T if and only if // RTTI is enabled, otherwise it returns a dummy type name. // NB: This function is also used in Google Mock, so don't move it inside of // the typed-test-only section below. template <typename T> std::string GetTypeName() { … } // A unique type indicating an empty node struct None { … }; #define GTEST_TEMPLATE_ … // The template "selector" struct TemplateSel<Tmpl> is used to // represent Tmpl, which must be a class template with one type // parameter, as a type. TemplateSel<Tmpl>::Bind<T>::type is defined // as the type Tmpl<T>. This allows us to actually instantiate the // template "selected" by TemplateSel<Tmpl>. // // This trick is necessary for simulating typedef for class templates, // which C++ doesn't support directly. template <GTEST_TEMPLATE_ Tmpl> struct TemplateSel { … }; #define GTEST_BIND_(TmplSel, T) … template <GTEST_TEMPLATE_ Head_, GTEST_TEMPLATE_... Tail_> struct Templates { … }; Templates<Head_>; // Tuple-like type lists template <typename Head_, typename... Tail_> struct Types { … }; Types<Head_>; // Helper metafunctions to tell apart a single type from types // generated by ::testing::Types template <typename... Ts> struct ProxyTypeList { … }; template <typename> struct is_proxy_type_list : std::false_type { … }; is_proxy_type_list<ProxyTypeList<Ts...>>; // Generator which conditionally creates type lists. // It recognizes if a requested type list should be created // and prevents creating a new type list nested within another one. template <typename T> struct GenerateTypeList { … }; } // namespace internal Types; } // namespace testing #endif // GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_TYPE_UTIL_H_