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spdlog/include/spdlog/details/log_attr.h

57 lines
1.7 KiB
C++

#pragma once
#include <string>
// #include <string_view>
#include <vector>
#include "attr_composer.h"
#include <spdlog/common.h>
namespace spdlog {
namespace details {
template<typename T>
struct is_string
: public std::integral_constant<bool, std::is_convertible<T, std::string>::value || std::is_convertible<T, string_view_t>::value>
{};
template<typename T>
struct is_number : public std::integral_constant<bool,
std::is_same<T, int>::value || std::is_same<T, unsigned int>::value
|| std::is_same<T, long>::value || std::is_same<T, unsigned long>::value
|| std::is_same<T, long long>::value || std::is_same<T, unsigned long long>::value
// shorts/chars get converted to int by to_string implicitly. Should we ignore chars but enforce shorts?
|| std::is_convertible<T, int>::value || std::is_convertible<T, unsigned int>::value
// || std::is_floating_point<T>::value
>
{};
struct attr
{
std::string key;
std::string value;
public:
template<typename key_t, typename value_t, typename std::enable_if<is_string<key_t>::value, key_t>::type * = nullptr,
typename std::enable_if<is_string<value_t>::value, value_t>::type * = nullptr>
attr(key_t const &k, value_t const &v)
{
scramble(key, k);
scramble(value, v);
}
template<typename key_t, typename value_t, typename std::enable_if<is_string<key_t>::value, key_t>::type * = nullptr,
typename std::enable_if<is_number<value_t>::value, value_t>::type * = nullptr>
attr(key_t const &k, value_t const &v)
{
scramble(key, k);
value = std::to_string(v);
}
};
} // namespace details
using attribute_list = std::vector<details::attr>;
} // namespace spdlog