84 lines
3.9 KiB
C++
84 lines
3.9 KiB
C++
// _ _ __ _____
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// | \ | | / _| / ____|_ _
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// | \| | __ _ _ __ ___ ___ ___ | |_ | | _| |_ _| |_
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// | . ` |/ _` | '_ ` _ \ / _ \/ _ \| _| | | |_ _|_ _|
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// | |\ | (_| | | | | | | __/ (_) | | | |____|_| |_|
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// |_| \_|\__,_|_| |_| |_|\___|\___/|_| \_____|
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// https://github.com/Neargye/nameof
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// vesion 0.4.0
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//
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// Licensed under the MIT License <http://opensource.org/licenses/MIT>.
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// Copyright (c) 2016, 2018 Daniil Goncharov <neargye@gmail.com>.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#pragma once
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#include <cstddef>
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#include <type_traits>
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namespace nameof {
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namespace detail {
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inline constexpr bool IsLexeme(char s) noexcept {
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return (s == '.' || s == '>' || s == ':' || s == '&' || s == '*' ||
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s == '+' || s == '~' || s == '-' || s == '!');
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}
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} // namespace detail
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inline constexpr const char* Nameof(const char* name, std::size_t length) noexcept {
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return ((length == 0) ? name : (detail::IsLexeme(name[length - 1])
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? &name[length]
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: Nameof(name, length - 1)));
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}
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template <typename T,
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typename = typename std::enable_if<
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!std::is_reference<T>::value &&
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!std::is_void<T>::value &&
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!std::is_function<T>::value &&
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!std::is_member_function_pointer<T>::value
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>::type>
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inline constexpr const char* NameofVariable(const T&, const char* name, std::size_t length) noexcept {
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return Nameof(name, length);
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}
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template <typename T>
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inline constexpr const char* NameofVariable(T&&, const char*, std::size_t) = delete;
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} // namespace nameof
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#if defined(__GNUC__) || defined(__clang__)
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// Used to obtain the simple (unqualified) string name of a variable, type, member, function, macros.
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# define NAMEOF(name) ::nameof::Nameof(#name, (((sizeof(#name) / sizeof(char)) - 1) + (0 * sizeof(void(*)(__typeof__(name))))))
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// Used to obtain the full string name of a variable, type, member, function, macros.
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# define NAMEOF_FULL(name) ::nameof::Nameof(#name, (0 * sizeof(void(*)(__typeof__(name)))))
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#elif defined(_MSC_VER)
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// Used to obtain the simple (unqualified) string name of a variable, type, member, function, macros.
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# define NAMEOF(name) ::nameof::Nameof(#name, (((sizeof(#name) / sizeof(char)) - 1) + (0 * sizeof(typeid(name)))))
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// Used to obtain the full string name of a variable, type, member, function, macros.
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# define NAMEOF_FULL(name) ::nameof::Nameof(#name, (0 * sizeof(typeid(name))))
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#endif
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// Used to obtain the simple (unqualified) string name of a variable or member.
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#define NAMEOF_VARIABLE(name) ::nameof::NameofVariable<decltype(name)>(name, #name, (sizeof(#name) / sizeof(char)) - 1)
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// Used to obtain the full string name of a variable or member.
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#define NAMEOF_VARIABLE_FULL(name) ::nameof::NameofVariable<decltype(name)>(name, #name, 0)
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