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test new version

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This commit is contained in:
Neargye 2018-08-02 20:18:59 +05:00
parent fb1299ab02
commit 766c9ef8a3
2 changed files with 45 additions and 32 deletions
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15
example/example.cpp
View file

@ -77,9 +77,10 @@ SomeStruct& refvar = somevar;
SomeStruct* ptrvar = &somevar; SomeStruct* ptrvar = &somevar;
int main() { int main() {
std::cout << typeid(std::string).name() << std::endl;
// constexpr // constexpr
constexpr auto constexpr_work_fine = NAMEOF(somevar); constexpr auto constexpr_work_fine = NAMEOF(somevar);
std::cout << constexpr_work_fine << std::endl; // intvar std::cout << constexpr_work_fine << std::endl; // somevar
// enum // enum
std::cout << NAMEOF(Color::RED) << std::endl; // RED std::cout << NAMEOF(Color::RED) << std::endl; // RED
@ -108,13 +109,13 @@ int main() {
// type // type
std::cout << NAMEOF_TYPE(std::string{}) << std::endl; // basic_string std::cout << NAMEOF_TYPE(std::string{}) << std::endl; // basic_string
std::cout << NAMEOF_TYPE(somevar) << std::endl; // SomeStruct std::cout << NAMEOF_TYPE(somevar) << std::endl; // SomeStruct
std::cout << NAMEOF_TYPE(refvar) << std::endl; // basic_string std::cout << NAMEOF_TYPE(refvar) << std::endl; // SomeStruct&
std::cout << NAMEOF_TYPE(ptrvar) << std::endl; // basic_string std::cout << NAMEOF_TYPE(ptrvar) << std::endl; // SomeStruct*
std::cout << NAMEOF_TYPE(Color::RED) << std::endl; // Color std::cout << NAMEOF_TYPE(Color::RED) << std::endl; // Color
std::cout << NAMEOF_RAW(int[]) << std::endl; // int[] std::cout << NAMEOF_RAW(int[]) << std::endl; // int[]
std::cout << NAMEOF_RAW(SomeStruct) << std::endl; // SomeStruct std::cout << NAMEOF_RAW(SomeStruct) << std::endl; // SomeStruct
std::cout << NAMEOF_RAW(Long::LL) << std::endl; // LL std::cout << NAMEOF_RAW(Long::LL) << std::endl; // Long::LL
std::cout << NAMEOF_RAW(volatile const int) << std::endl; // volatile const int std::cout << NAMEOF_RAW(volatile const int) << std::endl; // volatile const int
// macros // macros
@ -123,7 +124,7 @@ int main() {
// full name // full name
std::cout << NAMEOF_RAW(somevar.somefield) << std::endl; // somevar.somefield std::cout << NAMEOF_RAW(somevar.somefield) << std::endl; // somevar.somefield
std::cout << NAMEOF_RAW(&SomeClass<int>::SomeMethod6<long int>) << std::endl; // &SomeStruct::SomeMethod2 std::cout << NAMEOF_RAW(&SomeClass<int>::SomeMethod6<long int>) << std::endl; // &SomeClass<int>::SomeMethod6<long int>
std::cout << NAMEOF_RAW(Long::LL) << std::endl; // Long::LL std::cout << NAMEOF_RAW(Long::LL) << std::endl; // Long::LL
const auto div = [](int x, int y) -> int { const auto div = [](int x, int y) -> int {
@ -143,8 +144,8 @@ int main() {
/* Remarks */ /* Remarks */
// Spaces and Tabs ignored // Spaces and Tabs ignored
std::cout << NAMEOF( somevar ) << std::endl; // string std::cout << NAMEOF( somevar ) << std::endl; // somevar
std::cout << NAMEOF( somevar ) << std::endl; // string std::cout << NAMEOF( somevar ) << std::endl; // somevar
#if 0 #if 0
// This expression does not have a name. // This expression does not have a name.

62
include/nameof.hpp
View file

@ -32,6 +32,7 @@
#include <cstddef> #include <cstddef>
#include <type_traits> #include <type_traits>
#include <limits>
#include <ostream> #include <ostream>
namespace nameof { namespace nameof {
@ -152,7 +153,7 @@ inline constexpr cstring NameofBase(const char* name, std::size_t length) noexce
return {name, length}; return {name, length};
} }
inline constexpr cstring NameofFunction(const char* name, std::size_t length, bool with_template_prefix) noexcept { inline constexpr cstring NameofFunction(const char* name, std::size_t length, bool with_prefix) noexcept {
if (length == 0) if (length == 0)
return {name, length}; return {name, length};
@ -177,43 +178,48 @@ inline constexpr cstring NameofFunction(const char* name, std::size_t length, bo
} }
if (IsLexeme(name[i - 1]) && h == 0) { if (IsLexeme(name[i - 1]) && h == 0) {
return {&name[i], length - i - (with_template_prefix ? 0 : p)}; return {&name[i], length - i - (with_prefix ? 0 : p)};
} }
} }
return {name, length - (with_template_prefix ? 0 : p)}; return {name, length - (with_prefix ? 0 : p)};
} }
inline constexpr cstring NameofType(const char* name, std::size_t length) noexcept { inline constexpr cstring NameofType(const char* name, std::size_t length, bool with_prefix) noexcept {
if (length == 0) if (length == 0)
return {name, length}; return {name, length};
std::size_t h = 0; std::size_t h = 0;
std::size_t p = 0;
for (std::size_t i = length; i > 0; --i) { for (std::size_t i = length; i > 0; --i) {
if (h == 0 && (name[i - 1] == '&' || name[i - 1] == '*')) { if (h == 0 && (name[i - 1] == '&' || name[i - 1] == '*')) {
++p;
continue; continue;
} }
if (name[i - 1] == '>') { if (name[i - 1] == '>') {
++h; ++h;
++p;
continue; continue;
} }
if (name[i - 1] == '<') { if (name[i - 1] == '<') {
--h; --h;
++p;
continue; continue;
} }
if (h != 0) { if (h != 0) {
++p;
continue; continue;
} }
if (IsLexeme(name[i - 1]) && h == 0) { if (IsLexeme(name[i - 1]) && h == 0) {
return {&name[i], length - i}; return {&name[i], length - i - (with_prefix ? 0 : p)};
} }
} }
return {name, length}; return {name, length - (with_prefix ? 0 : p)};
} }
inline constexpr cstring NameofRaw(const char* name, std::size_t length) noexcept { inline constexpr cstring NameofRaw(const char* name, std::size_t length) noexcept {
@ -225,10 +231,10 @@ inline constexpr cstring NameofRaw(const char* name, std::size_t length) noexcep
template <typename T, template <typename T,
typename = typename std::enable_if<!std::is_reference<T>::value && typename = typename std::enable_if<!std::is_reference<T>::value &&
!std::is_void<T>::value>::type> !std::is_void<T>::value>::type>
inline constexpr detail::cstring Nameof(const T&, const char* name, std::size_t length, bool with_template_prefix) noexcept { inline constexpr detail::cstring Nameof(const T&, const char* name, std::size_t length, bool with_prefix) noexcept {
// TODO: conditional expression is constant // TODO: conditional expression is constant
if (std::is_function<T>::value || std::is_member_function_pointer<T>::value) if (std::is_function<T>::value || std::is_member_function_pointer<T>::value)
return detail::NameofFunction(name, length, with_template_prefix); return detail::NameofFunction(name, length, with_prefix);
return detail::NameofBase(name, length); return detail::NameofBase(name, length);
} }
@ -240,7 +246,7 @@ template <typename T,
inline constexpr detail::cstring Nameof(T&&, const char*, std::size_t) = delete; inline constexpr detail::cstring Nameof(T&&, const char*, std::size_t) = delete;
template <typename T> template <typename T>
inline constexpr detail::cstring NameofType() { inline constexpr detail::cstring NameofType(bool full) noexcept {
#if defined(__GNUC__) || defined(__clang__) #if defined(__GNUC__) || defined(__clang__)
constexpr auto function_name = __PRETTY_FUNCTION__; constexpr auto function_name = __PRETTY_FUNCTION__;
constexpr auto total_length = sizeof(__PRETTY_FUNCTION__) - 1; constexpr auto total_length = sizeof(__PRETTY_FUNCTION__) - 1;
@ -250,11 +256,12 @@ inline constexpr detail::cstring NameofType() {
constexpr auto function_name = __FUNCSIG__; constexpr auto function_name = __FUNCSIG__;
constexpr auto total_length = sizeof(__FUNCSIG__) - 1; constexpr auto total_length = sizeof(__FUNCSIG__) - 1;
constexpr auto prefix_length = sizeof("class nameof::detail::cstring __cdecl nameof::NameofType<") - 1; constexpr auto prefix_length = sizeof("class nameof::detail::cstring __cdecl nameof::NameofType<") - 1;
constexpr auto suffix_length = sizeof(">(void)") - 1; constexpr auto suffix_length = sizeof(">(bool) noexcept") - 1;
#endif #endif
constexpr auto type_name = detail::cstring{function_name + prefix_length, total_length - prefix_length - suffix_length}; auto type_name = detail::cstring{function_name + prefix_length, total_length - prefix_length - suffix_length};
#if defined(_MSC_VER) #if defined(_MSC_VER)
constexpr auto class_length = sizeof("class") - 1; constexpr auto class_length = sizeof("class") - 1;
constexpr auto struct_length = sizeof("struct") - 1; constexpr auto struct_length = sizeof("struct") - 1;
constexpr auto enum_length = sizeof("enum") - 1; constexpr auto enum_length = sizeof("enum") - 1;
@ -262,30 +269,29 @@ inline constexpr detail::cstring NameofType() {
if (std::is_class<typename detail::remove_all_pointers<typename std::remove_reference<T>::type>::type>::value) { if (std::is_class<typename detail::remove_all_pointers<typename std::remove_reference<T>::type>::type>::value) {
if (type_name[0] == 'c') { if (type_name[0] == 'c') {
if (type_name[class_length] == ' ') { if (type_name[class_length] == ' ') {
return detail::cstring{type_name.begin() + class_length + 1, type_name.length() - class_length - 1}; type_name = detail::cstring{type_name.begin() + class_length + 1, type_name.length() - class_length - 1};
} else {
type_name = detail::cstring{type_name.begin() + class_length, type_name.length() - class_length};
} }
return detail::cstring{type_name.begin() + class_length, type_name.length() - class_length}; } else if (type_name[0] == 's') {
}
if (type_name[0] == 's') {
if (type_name[struct_length] == ' ') { if (type_name[struct_length] == ' ') {
return detail::cstring{type_name.begin() + struct_length + 1, type_name.length() - struct_length - 1}; type_name = detail::cstring{type_name.begin() + struct_length + 1, type_name.length() - struct_length - 1};
} else {
type_name = detail::cstring{type_name.begin() + struct_length, type_name.length() - struct_length};
} }
return detail::cstring{type_name.begin() + struct_length, type_name.length() - struct_length};
} }
} } else if (std::is_enum<typename detail::remove_all_pointers<typename std::remove_reference<T>::type>::type>::value) {
if (std::is_enum<typename detail::remove_all_pointers<typename std::remove_reference<T>::type>::type>::value) {
if (type_name[0] == 'e') { if (type_name[0] == 'e') {
if (type_name[enum_length] == ' ') { if (type_name[enum_length] == ' ') {
return detail::cstring{type_name.begin() + enum_length + 1, type_name.length() - enum_length - 1}; type_name = detail::cstring{type_name.begin() + enum_length + 1, type_name.length() - enum_length - 1};
} else {
type_name = detail::cstring{type_name.begin() + enum_length, type_name.length() - enum_length};
} }
return detail::cstring{type_name.begin() + enum_length, type_name.length() - enum_length};
} }
} }
#endif #endif
return type_name; return full ? type_name : detail::NameofType(type_name.begin(), type_name.length(), false);
} }
} // namespace nameof } // namespace nameof
@ -301,7 +307,13 @@ inline constexpr detail::cstring NameofType() {
// Used to obtain the simple (unqualified) string name of a variable, member, function. // Used to obtain the simple (unqualified) string name of a variable, member, function.
#define NAMEOF(name) ::nameof::Nameof<decltype(name)>(name, #name, (sizeof(#name) / sizeof(char)) - 1, false) #define NAMEOF(name) ::nameof::Nameof<decltype(name)>(name, #name, (sizeof(#name) / sizeof(char)) - 1, false)
// Used to obtain the simple (unqualified) string name of a variable, member, function with template prefix.
#define NAMEOF_T(name) ::nameof::Nameof<decltype(name)>(name, #name, (sizeof(#name) / sizeof(char)) - 1, true) #define NAMEOF_T(name) ::nameof::Nameof<decltype(name)>(name, #name, (sizeof(#name) / sizeof(char)) - 1, true)
#define NAMEOF_FULL 0
// Used to obtain the simple (unqualified) string name of a type. // Used to obtain the simple (unqualified) string name of a type.
#define NAMEOF_TYPE(name) ::nameof::NameofType<decltype(name)>() #define NAMEOF_TYPE(name) ::nameof::NameofType<decltype(name)>(false)
// Used to obtain the full string name of a type.
#define NAMEOF_TYPE_FULL(name) ::nameof::NameofType<decltype(name)>(true)