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add NAMEOF_VARIABLE

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Neargye 2018-07-13 20:18:52 +05:00
parent 0b0a6e908c
commit 24f7721f2c
2 changed files with 78 additions and 10 deletions
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30
include/nameof.hpp
View file

@ -5,7 +5,7 @@
// | |\ | (_| | | | | | | __/ (_) | | | |____|_| |_|
// |_| \_|\__,_|_| |_| |_|\___|\___/|_| \_____|
// https://github.com/Neargye/nameof
// vesion 0.3.0
// vesion 0.4.0
//
// Licensed under the MIT License <http://opensource.org/licenses/MIT>.
// Copyright (c) 2016, 2018 Daniil Goncharov <neargye@gmail.com>.
@ -31,6 +31,7 @@
#pragma once
#include <cstddef>
#include <type_traits>
namespace nameof {
@ -49,16 +50,35 @@ inline constexpr const char* Nameof(const char* name, const std::size_t length)
: Nameof(name, length - 1)));
}
template <typename T,
typename = typename std::enable_if<
!std::is_reference<T>::value &&
!std::is_void<T>::value &&
!std::is_function<T>::value &&
!std::is_member_function_pointer<T>::value
>::type>
inline constexpr const char* NameofVariable(const T&, const char* name, std::size_t length) noexcept {
return Nameof(name, length);
}
template <typename T>
inline constexpr const char* NameofVariable(T&&, const char*, std::size_t) = delete;
} // namespace nameof
#if defined(__GNUC__) || defined(__clang__)
// Used to obtain the string name of a variable, type, member, function, macros.
// Used to obtain the simple (unqualified) string name of a variable, type, member, function, macros.
# define NAMEOF(name) ::nameof::Nameof(#name, (((sizeof(#name) / sizeof(char)) - 1) + (0 * sizeof(void(*)(__typeof__(name))))))
// Used to obtain the string full name of a variable, type, member, function, macros.
// Used to obtain the full string name of a variable, type, member, function, macros.
# define NAMEOF_FULL(name) ::nameof::Nameof(#name, (0 * sizeof(void(*)(__typeof__(name)))))
#elif defined(_MSC_VER)
// Used to obtain the string name of a variable, type, member, function, macros.
// Used to obtain the simple (unqualified) string name of a variable, type, member, function, macros.
# define NAMEOF(name) ::nameof::Nameof(#name, (((sizeof(#name) / sizeof(char)) - 1) + (0 * sizeof(typeid(name)))))
// Used to obtain the string full name of a variable, type, member, function, macros.
// Used to obtain the full string name of a variable, type, member, function, macros.
# define NAMEOF_FULL(name) ::nameof::Nameof(#name, (0 * sizeof(typeid(name))))
#endif
// Used to obtain the simple (unqualified) string name of a variable or member.
#define NAMEOF_VARIABLE(name) ::nameof::NameofVariable<decltype(name)>(name, #name, (sizeof(#name) / sizeof(char)) - 1)
// Used to obtain the full string name of a variable or member.
#define NAMEOF_VARIABLE_FULL(name) ::nameof::NameofVariable<decltype(name)>(name, #name, 0)

58
test/test.cpp
View file

@ -97,9 +97,19 @@ TEST_CASE("constexpr") {
constexpr auto cx5 = NAMEOF_FULL(__cplusplus);
REQUIRE(std::strcmp(cx5, "__cplusplus") == 0);
}
SECTION("NAMEOF_VARIABLE") {
constexpr auto cx1 = NAMEOF_VARIABLE((&somevar)->somefield);
REQUIRE(std::strcmp(cx1, "somefield") == 0);
}
SECTION("NAMEOF_VARIABLE_FULL") {
constexpr auto cx1 = NAMEOF_VARIABLE_FULL((&somevar)->somefield);
REQUIRE(std::strcmp(cx1, "(&somevar)->somefield") == 0);
}
}
TEST_CASE("NAMEOF") {
TEST_CASE("simple name") {
SECTION("variable") {
REQUIRE(std::strcmp(NAMEOF(somevar), "somevar") == 0);
REQUIRE(std::strcmp(NAMEOF(&somevar), "somevar") == 0);
@ -151,13 +161,14 @@ TEST_CASE("NAMEOF") {
}
}
TEST_CASE("NAMEOF_FULL") {
TEST_CASE("full name") {
SECTION("variable") {
REQUIRE(std::strcmp(NAMEOF_FULL(somevar), "somevar") == 0);
REQUIRE(std::strcmp(NAMEOF_FULL(&somevar), "&somevar") == 0);
REQUIRE(std::strcmp(NAMEOF_FULL(::somevar), "::somevar") == 0);
REQUIRE(std::strcmp(NAMEOF_FULL(somevar.somefield), "somevar.somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_FULL((&somevar)->somefield), "(&somevar)->somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_FULL(::somevar), "::somevar") == 0);
REQUIRE(std::strcmp(NAMEOF_FULL(othervar.ll.field), "othervar.ll.field") == 0);
@ -206,8 +217,11 @@ TEST_CASE("NAMEOF_FULL") {
TEST_CASE("Spaces and Tabs ignored") {
SECTION("Spaces") {
// variable
REQUIRE(std::strcmp(NAMEOF( (&somevar)->somefield ), "somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE( (&somevar)->somefield ), "somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_FULL( (&somevar)->somefield ), "(&somevar)->somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE( (&somevar)->somefield ), "somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE_FULL( (&somevar)->somefield ), "(&somevar)->somefield") == 0);
// type
REQUIRE(std::strcmp(NAMEOF( std::string ), "string") == 0);
REQUIRE(std::strcmp(NAMEOF_FULL( std::string ), "std::string") == 0);
@ -221,10 +235,14 @@ TEST_CASE("Spaces and Tabs ignored") {
REQUIRE(std::strcmp(NAMEOF( __cplusplus ), "__cplusplus") == 0);
REQUIRE(std::strcmp(NAMEOF_FULL( __cplusplus ), "__cplusplus") == 0);
}
SECTION("Tabs") {
// variable
REQUIRE(std::strcmp(NAMEOF( (&somevar)->somefield ), "somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE( (&somevar)->somefield ), "somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_FULL( (&somevar)->somefield ), "(&somevar)->somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE( (&somevar)->somefield ), "somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE_FULL( (&somevar)->somefield ), "(&somevar)->somefield") == 0);
// type
REQUIRE(std::strcmp(NAMEOF( std::string ), "string") == 0);
REQUIRE(std::strcmp(NAMEOF_FULL( std::string ), "std::string") == 0);
@ -239,3 +257,33 @@ TEST_CASE("Spaces and Tabs ignored") {
REQUIRE(std::strcmp(NAMEOF_FULL( __cplusplus ), "__cplusplus") == 0);
}
}
TEST_CASE("variable name") {
SECTION("simple") {
REQUIRE(std::strcmp(NAMEOF_VARIABLE(somevar), "somevar") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE(::somevar), "somevar") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE(somevar.somefield), "somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE((&somevar)->somefield), "somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE(othervar.ll.field), "field") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE(ptrvar), "ptrvar") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE(ptrptrvar), "ptrptrvar") == 0);
}
SECTION("full name") {
REQUIRE(std::strcmp(NAMEOF_VARIABLE_FULL(somevar), "somevar") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE_FULL(::somevar), "::somevar") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE_FULL(somevar.somefield), "somevar.somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE_FULL((&somevar)->somefield), "(&somevar)->somefield") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE_FULL(othervar.ll.field), "othervar.ll.field") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE_FULL(ptrvar), "ptrvar") == 0);
REQUIRE(std::strcmp(NAMEOF_VARIABLE_FULL(ptrptrvar), "ptrptrvar") == 0);
}
}