wip
This commit is contained in:
Neargye
parent
5e0024145c
commit
46a5376eb3
3 changed files with 87 additions and 155 deletions
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@ -49,15 +49,16 @@ void SomeMethod3() {
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}
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template <typename T>
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T SomeMethod4() {
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return T{};
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std::string SomeMethod4() {
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std::cout << NAMEOF_TYPE_T(T) << std::endl;
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return NAMEOF_FULL(SomeMethod4<T>);
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}
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template <typename T>
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class SomeClass {
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public:
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void SomeMethod5() const {
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std::cout << NAMEOF_TYPE_T(T) << std::endl;
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std::cout << nameof::NameofType<T>() << std::endl;
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}
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template <typename C>
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@ -103,6 +104,7 @@ int main() {
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std::cout << NAMEOF(&SomeStruct::SomeMethod2) << std::endl; // SomeMethod2
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std::cout << NAMEOF(SomeMethod3) << std::endl; // SomeMethod3
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std::cout << NAMEOF(SomeMethod4<int>()) << std::endl; // SomeMethod4
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std::cout << NAMEOF(SomeMethod4<int>) << std::endl; // SomeMethod4
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std::cout << NAMEOF_FULL(SomeMethod4<int>) << std::endl; // SomeMethod4<int>
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@ -122,11 +124,9 @@ int main() {
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std::cout << NAMEOF_TYPE_T(SomeClass<int>) << std::endl; // SomeClass<int>
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// Raw name.
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std::cout << NAMEOF_RAW(volatile const int) << std::endl; // volatile const int
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std::cout << NAMEOF_RAW(__LINE__) << std::endl; // __LINE__
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std::cout << NAMEOF_RAW(structvar.somefield) << std::endl; // structvar.somefield
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std::cout << NAMEOF_RAW(&SomeStruct::SomeMethod1) << std::endl; // &SomeStruct::SomeMethod1
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std::cout << NAMEOF_RAW(Long::LL) << std::endl; // Long::LL
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const auto div = [](int x, int y) -> int {
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if (y == 0) {
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@ -143,27 +143,31 @@ int main() {
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}
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/* Remarks */
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#if 0
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#if 1
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// This expression does not have a name.
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std::cout << NAMEOF("Bad case") << std::endl; // '"Bad case"'
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std::cout << NAMEOF("Bad case"_string) << std::endl; // '"Bad case"_string'
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std::cout << NAMEOF("somevar.somefield") << std::endl; // 'somefield"'
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std::cout << NAMEOF("Bad case"_string) << std::endl; // '_string'
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std::cout << NAMEOF(42.0) << std::endl; // '0'
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std::cout << NAMEOF(42.f) << std::endl; // 'f'
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std::cout << NAMEOF(42) << std::endl; // '42'
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std::cout << NAMEOF(42.0_deg) << std::endl; // '0_deg'
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std::cout << NAMEOF(std::string()) << std::endl; // 'string()'
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std::cout << NAMEOF(std::string{}) << std::endl; // "string{}'
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std::cout << NAMEOF(std::string{"test"}) << std::endl; // 'string{"test"}'
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std::cout << NAMEOF(SomeMethod4<int>()) << std::endl; // '()'
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std::cout << NAMEOF(std::string()) << std::endl; // 'string'
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std::cout << NAMEOF(std::string{}) << std::endl; // 'string'
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std::cout << NAMEOF(std::string{"test"}) << std::endl; // 'string'
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std::cout << NAMEOF(structvar.somefield + structvar.somefield) << std::endl; // ' somefield'
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std::cout << NAMEOF(42 + 42) << std::endl; // ' 42'
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std::cout << NAMEOF(NAMEOF(structvar)) << std::endl; // 'NAMEOF'
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#endif
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#if 0
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// This expression does not compilation.
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std::cout << NAMEOF("Bad case") << std::endl; // ''
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std::cout << NAMEOF("somevar.somefield") << std::endl; // ''
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std::cout << NAMEOF(std::basic_string<char>) << std::endl; // ''
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std::cout << NAMEOF(ptrvar[0]) << std::endl; // 'ptrvar[0]'
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std::cout << NAMEOF(intvar + intvar) << std::endl; // ' intvar'
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std::cout << NAMEOF(NAMEOF(intvar)) << std::endl; // 'NAMEOF(intvar)'
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std::cout << NAMEOF(std::cout << intvar << std::endl) << std::endl; // 'endl'
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std::cout << NAMEOF(decltype(intvar)) << std::endl; // 'decltype(intvar)'
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std::cout << NAMEOF(typeid(intvar)) << std::endl; // 'typeid(intvar)'
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std::cout << NAMEOF((intvar)) << std::endl; // '(intvar)'
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std::cout << NAMEOF(std::cout << structvar << std::endl) << std::endl; // ''
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std::cout << NAMEOF(decltype(structvar)) << std::endl; // ''
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std::cout << NAMEOF(typeid(structvar)) << std::endl; // ''
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std::cout << NAMEOF((structvar)) << std::endl; // ''
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#endif
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return 0;
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@ -39,7 +39,7 @@
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# define NAMEOF_HAS_CONSTEXPR14 1
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#endif
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#if defined(__clang__) || defined(_MSC_VER)
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#if (defined(__clang__) || defined(_MSC_VER)) || (defined(__GNUC__) && __GNUC__ >= 5)
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# define NAMEOF_TYPE_CONSTEXPR constexpr
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# define NAMEOF_TYPE_HAS_CONSTEXPR 1
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#else
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@ -57,49 +57,6 @@ struct identity {
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using type = T;
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};
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template <typename T>
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using identity_t = typename identity<T>::type;
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// Removes all pointer from the given type.
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template <typename T>
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struct remove_all_p
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: std::conditional<std::is_pointer<T>::value,
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remove_all_p<typename std::remove_pointer<T>::type>,
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identity<T>
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>::type {};
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template <typename T>
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using remove_all_p_t = typename remove_all_p<T>::type;
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// Removes const, volatile, reference specifiers from the given type.
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template <typename T>
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struct remove_cvr {
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using type = typename std::remove_cv<typename std::remove_reference<T>::type>::type;
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};
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template <typename T>
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using remove_cvr_t = typename remove_cvr<T>::type;
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// Removes all const, volatile, reference, pointer specifiers from the given type.
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template <typename T>
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struct remove_all_cvrp {
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using type = typename remove_cvr<typename remove_all_p<typename remove_cvr<T>::type>::type>::type;
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};
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template <typename T>
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using remove_all_cvrp_t = typename remove_all_cvrp<T>::type;
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// Removes all const, volatile, reference, pointer, array extents specifiers from the given type.
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template <typename T, typename U = typename remove_all_cvrp<T>::type>
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struct remove_all_cvrpe
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: std::conditional<std::is_array<U>::value,
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remove_all_cvrpe<typename std::remove_all_extents<U>::type>,
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identity<U>
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>::type {};
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template <typename T>
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using remove_all_cvrpe_t = typename remove_all_cvrpe<T>::type;
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} // namespace nstd
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constexpr bool StrEquals(const char* lhs, const char* rhs, std::size_t size) {
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@ -220,13 +177,11 @@ constexpr bool IsLexeme(char s) noexcept {
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constexpr cstring NameofPretty(cstring name, bool with_suffix) noexcept {
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std::size_t s = 0;
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for (std::size_t i = name.size(), h = 0; i > 0; --i) {
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if (name[i - 1] == '>') {
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if (name[i - 1] == '>' || name[i - 1] == ')' || name[i - 1] == '}') {
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++h;
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++s;
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continue;
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}
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if (name[i - 1] == '<') {
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} else if (name[i - 1] == '<' || name[i - 1] == '(' || name[i - 1] == '{') {
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--h;
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++s;
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continue;
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@ -249,31 +204,32 @@ constexpr cstring NameofPretty(cstring name, bool with_suffix) noexcept {
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return name.remove_suffix(with_suffix ? 0 : s);
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}
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#else
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constexpr std::size_t NameofBaseImpl1(cstring name, std::size_t h = 0, std::size_t s = 0) noexcept {
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return name[name.size() - 1 - s] == '>'
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? NameofBaseImpl1(name, h + 1, s + 1)
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: name[name.size() - 1 - s] == '<'
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? NameofBaseImpl1(name, h - 1, s + 1)
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: h == 0 ? s : NameofBaseImpl1(name, h, s + 1);
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constexpr std::size_t FindSuffix(cstring name, std::size_t h = 0, std::size_t s = 0) noexcept {
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return (name[name.size() - 1 - s] == '>' || name[name.size() - 1 - s] == ')' || name[name.size() - 1 - s] == '}')
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? FindSuffix(name, h + 1, s + 1)
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: (name[name.size() - 1 - s] == '<' || name[name.size() - 1 - s] == ')' || name[name.size() - 1 - s] == '{')
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? FindSuffix(name, h - 1, s + 1)
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: h == 0 ? s : FindSuffix(name, h, s + 1);
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}
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constexpr cstring NameofBaseImpl2(cstring name, const std::size_t p = 0) noexcept {
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constexpr cstring RemovePrefix(cstring name, const std::size_t p = 0) noexcept {
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return p == name.size() ? name : IsLexeme(name[name.size() - 1 - p])
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? name.remove_prefix(name.size() - p)
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: NameofBaseImpl2(name, p + 1);
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: RemovePrefix(name, p + 1);
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}
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constexpr cstring NameofBaseImpl3(cstring name, std::size_t s, bool with_suffix) noexcept {
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return NameofBaseImpl2(name.remove_suffix(s)).add_suffix(with_suffix ? s : 0);
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constexpr cstring NameofPrettyImpl(cstring name, std::size_t s, bool with_suffix) noexcept {
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return RemovePrefix(name.remove_suffix(s)).add_suffix(with_suffix ? s : 0);
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}
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constexpr cstring NameofPretty(cstring name, bool with_suffix) noexcept {
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return NameofBaseImpl3(name, NameofBaseImpl1(name), with_suffix);
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return NameofPrettyImpl(name, FindSuffix(name), with_suffix);
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}
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#endif
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constexpr cstring RemoveSpace(cstring name) noexcept {
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return name.back() == ' ' ? RemoveSpace(name.remove_suffix(1)) : name;
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#if defined(_MSC_VER)
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constexpr cstring RemoveSpaceSuffix(cstring name) noexcept {
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return name.back() == ' ' ? RemoveSpaceSuffix(name.remove_suffix(1)) : name;
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}
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constexpr cstring RemoveClassPrefix(cstring name) noexcept {
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@ -297,27 +253,39 @@ constexpr cstring RemoveStructPrefix(cstring name) noexcept {
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: name;
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}
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constexpr cstring NameofTypeRawPretty(cstring name) noexcept {
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return RemoveClassPrefix(RemoveStructPrefix(RemoveEnumPrefix(RemoveSpace(name))));
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constexpr cstring NameofTypePretty(cstring name) noexcept {
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return RemoveClassPrefix(RemoveStructPrefix(RemoveEnumPrefix(RemoveSpaceSuffix(name))));
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}
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#elif defined(__clang__) || defined(__GNUC__)
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constexpr cstring NameofTypePretty(const char* str, std::size_t size, std::size_t prefix, std::size_t suffix) noexcept {
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return {str, size, prefix, suffix + (str[size - suffix - 1] == ' ' ? 1 : 0)};
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}
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#endif
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template <typename T>
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NAMEOF_TYPE_CONSTEXPR cstring NameofTypeRaw() noexcept {
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NAMEOF_TYPE_CONSTEXPR cstring NameofType() noexcept {
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#if defined(__clang__)
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return {__PRETTY_FUNCTION__,
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return NameofTypePretty(
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__PRETTY_FUNCTION__,
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sizeof(__PRETTY_FUNCTION__) - 1,
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sizeof("nameof::detail::cstring nameof::detail::NameofTypeRaw() [T = nameof::detail::nstd::identity<") - 1,
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sizeof(">]") - 1};
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sizeof("nameof::detail::cstring nameof::detail::NameofType() [T = nameof::detail::nstd::identity<") - 1,
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sizeof(">]") - 1);
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#elif defined(__GNUC__)
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return {__PRETTY_FUNCTION__,
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return NameofTypePretty(
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__PRETTY_FUNCTION__,
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sizeof(__PRETTY_FUNCTION__) - 1,
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sizeof("nameof::detail::cstring nameof::detail::NameofTypeRaw() [with T = nameof::detail::nstd::identity<") - 1,
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sizeof(">]") - 1};
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# if defined(NAMEOF_TYPE_HAS_CONSTEXPR)
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sizeof("constexpr nameof::detail::cstring nameof::detail::NameofType() [with T = nameof::detail::nstd::identity<") - 1,
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# else
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sizeof("nameof::detail::cstring nameof::detail::NameofType() [with T = nameof::detail::nstd::identity<") - 1,
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# endif
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sizeof(">]") - 1);
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#elif defined(_MSC_VER)
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return {__FUNCSIG__,
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return NameofTypePretty(
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{__FUNCSIG__,
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sizeof(__FUNCSIG__) - 1,
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sizeof("class nameof::detail::cstring __cdecl nameof::detail::NameofTypeRaw<struct nameof::detail::nstd::identity<") - 1,
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sizeof(">>(void) noexcept") - 1};
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sizeof("class nameof::detail::cstring __cdecl nameof::detail::NameofType<struct nameof::detail::nstd::identity<") - 1,
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sizeof(">>(void) noexcept") - 1});
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#else
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return {};
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#endif
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@ -326,16 +294,11 @@ NAMEOF_TYPE_CONSTEXPR cstring NameofTypeRaw() noexcept {
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template <typename T,
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typename = typename std::enable_if<!std::is_reference<T>::value &&
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!std::is_void<T>::value>::type>
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constexpr cstring Nameof(const T&, const char* name, std::size_t size, bool with_suffix) noexcept {
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constexpr cstring Nameof(const char* name, std::size_t size, bool with_suffix) noexcept {
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return NameofPretty({name, size}, with_suffix);
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}
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template <typename T,
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typename = typename std::enable_if<!std::is_enum<T>::value &&
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!std::is_function<T>::value &&
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!std::is_member_function_pointer<T>::value>::type>
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constexpr cstring Nameof(T&&, const char*, std::size_t, bool) = delete;
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template <typename T>
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constexpr cstring NameofRaw(const char* name, std::size_t size) noexcept {
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return {name, size};
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}
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@ -343,42 +306,21 @@ constexpr cstring NameofRaw(const char* name, std::size_t size) noexcept {
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} // namespace detail
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template <typename T, typename H = detail::nstd::identity<T>>
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NAMEOF_TYPE_CONSTEXPR detail::cstring NameofType(bool pretty = true) noexcept {
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return pretty ? detail::NameofTypeRawPretty(detail::NameofTypeRaw<H>()) : detail::NameofTypeRaw<H>();
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NAMEOF_TYPE_CONSTEXPR detail::cstring NameofType() noexcept {
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return true ? detail::NameofType<H>() : detail::NameofType<H>();
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}
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} // namespace nameof
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#if defined(__clang__)
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# if __has_feature(cxx_rtti)
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# define NAMEOF_HAS_RTTI 1
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# endif
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#elif defined(__GNUC__)
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# if defined(__GXX_RTTI)
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# define NAMEOF_HAS_RTTI 1
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# endif
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#elif defined(_MSC_VER) && defined(_CPPRTTI)
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# if defined(_CPPRTTI)
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# define NAMEOF_HAS_RTTI 1
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# endif
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#endif
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// Used to obtain the simple (unqualified) string name of a variable, member, function, macros.
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#define NAMEOF(name) ::nameof::detail::Nameof<decltype(name)>(#name, (sizeof(#name) / sizeof(char)) - 1, false)
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#if defined(NAMEOF_HAS_RTTI) || defined(_MSC_VER)
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#include <typeinfo>
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// Used to obtain the full string name of a variable, member, function, macros.
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#define NAMEOF_FULL(name) ::nameof::detail::Nameof<decltype(name)>(#name, (sizeof(#name) / sizeof(char)) - 1, true)
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// Used to obtain the raw string name of a variable, type, member, function, macros.
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# define NAMEOF_RAW(name) ::nameof::detail::NameofRaw(#name, ((sizeof(#name) / sizeof(char)) - 1) + (0 * sizeof(typeid(name))))
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#elif defined(__clang__) || defined(__GNUC__)
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// Used to obtain the raw string name of a variable, type, member, function, macros.
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# define NAMEOF_RAW(name) ::nameof::detail::NameofRaw(#name, ((sizeof(#name) / sizeof(char)) - 1) + (0 * sizeof(void(*)(__typeof__(name)))))
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#endif
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// Used to obtain the simple (unqualified) string name of a variable, member, function.
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#define NAMEOF(name) ::nameof::detail::Nameof<decltype(name)>(name, #name, (sizeof(#name) / sizeof(char)) - 1, false)
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// Used to obtain the full string name of a variable, member, function.
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#define NAMEOF_FULL(name) ::nameof::detail::Nameof<decltype(name)>(name, #name, (sizeof(#name) / sizeof(char)) - 1, true)
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// Used to obtain the raw string name of a variable, member, function, macros.
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#define NAMEOF_RAW(name) ::nameof::detail::NameofRaw<decltype(name)>(#name, (sizeof(#name) / sizeof(char)) - 1)
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// Used to obtain the string name of a type.
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#define NAMEOF_TYPE(var) ::nameof::NameofType<decltype(var)>(true)
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#define NAMEOF_TYPE_T(type) ::nameof::NameofType<type>(true)
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#define NAMEOF_TYPE(var) ::nameof::NameofType<decltype(var)>()
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#define NAMEOF_TYPE_T(type) ::nameof::NameofType<type>()
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@ -114,9 +114,6 @@ TEST_CASE("constexpr") {
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// member
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constexpr auto cx2 = NAMEOF_RAW((&structvar)->somefield);
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static_assert(cx2 == "(&structvar)->somefield", "");
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// type
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constexpr auto cx3 = NAMEOF_RAW(std::string);
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static_assert(cx3 == "std::string", "");
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// function
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constexpr auto cx4 = NAMEOF_RAW(&SomeStruct::SomeMethod2);
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static_assert(cx4 == "&SomeStruct::SomeMethod2", "");
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@ -127,9 +124,7 @@ TEST_CASE("constexpr") {
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constexpr auto cx6 = NAMEOF_RAW(__cplusplus);
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static_assert(cx6 == "__cplusplus", "");
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}
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// constexpr NAMEOF_TYPE not supported in GCC.
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#if defined(_MSC_VER) || defined(__clang__)
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#if defined(NAMEOF_TYPE_HAS_CONSTEXPR)
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SECTION("NAMEOF_TYPE") {
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constexpr auto cx = NAMEOF_TYPE(classvar);
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# if defined(__clang__)
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@ -138,6 +133,7 @@ TEST_CASE("constexpr") {
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static_assert(cx == "SomeClass<int> const volatile *", "");
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# endif
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}
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SECTION("NAMEOF_TYPE_T") {
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constexpr auto cx = NAMEOF_TYPE_T(const SomeClass<int> volatile *);
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# if defined(__clang__)
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@ -225,16 +221,6 @@ TEST_CASE("NAMEOF_RAW") {
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REQUIRE(NAMEOF_RAW(othervar.ll.field) == "othervar.ll.field");
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}
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SECTION("type") {
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REQUIRE(NAMEOF_RAW(int[]) == "int[]");
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REQUIRE(NAMEOF_RAW(int) == "int");
|
||||
REQUIRE(NAMEOF_RAW(const volatile int[]) == "const volatile int[]");
|
||||
REQUIRE(NAMEOF_RAW(std::string) == "std::string");
|
||||
REQUIRE(NAMEOF_RAW(SomeStruct) == "SomeStruct");
|
||||
REQUIRE(NAMEOF_RAW(Long::LL) == "Long::LL");
|
||||
REQUIRE(NAMEOF_RAW(Color) == "Color");
|
||||
}
|
||||
|
||||
SECTION("function") {
|
||||
REQUIRE(NAMEOF_RAW(&SomeStruct::SomeMethod1) == "&SomeStruct::SomeMethod1");
|
||||
REQUIRE(NAMEOF_RAW(&SomeStruct::SomeMethod2) == "&SomeStruct::SomeMethod2");
|
||||
|
|
|
|||
Loading…
Reference in a new issue