72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
#ifndef MBGL_PLATFORM_LOG
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#define MBGL_PLATFORM_LOG
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#include "event.hpp"
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#include <memory>
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#include <string>
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namespace mbgl {
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class LogBackend {
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public:
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virtual inline ~LogBackend() = default;
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virtual void record(EventSeverity severity, Event event, const std::string &msg) = 0;
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virtual void record(EventSeverity severity, Event event, const char* format, ...) = 0;
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virtual void record(EventSeverity severity, Event event, int64_t code) = 0;
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virtual void record(EventSeverity severity, Event event, int64_t code, const std::string &msg) = 0;
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};
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class Log {
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private:
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template <typename T, size_t N>
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constexpr static bool includes(const T e, const T (&l)[N], const size_t i = 0) {
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return i < N && (l[i] == e || includes(e, l, i + 1));
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}
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public:
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template <typename ...Args>
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static inline void Debug(Event event, Args&& ...args) {
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Record(EventSeverity::Debug, event, ::std::forward<Args>(args)...);
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}
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template <typename ...Args>
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static inline void Info(Event event, Args&& ...args) {
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Record(EventSeverity::Info, event, ::std::forward<Args>(args)...);
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}
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template <typename ...Args>
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static inline void Warning(Event event, Args&& ...args) {
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Record(EventSeverity::Warning, event, ::std::forward<Args>(args)...);
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}
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template <typename ...Args>
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static inline void Error(Event event, Args&& ...args) {
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Record(EventSeverity::Error, event, ::std::forward<Args>(args)...);
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}
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template <typename ...Args>
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static inline void Record(EventSeverity severity, Event event, Args&& ...args) {
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if (!includes(severity, disabledEventSeverities) &&
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!includes(event, disabledEvents) &&
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!includes({ severity, event }, disabledEventPermutations)) {
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if (Backend) {
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Backend->record(severity, event, ::std::forward<Args>(args)...);
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}
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}
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}
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template<typename T, typename ...Args>
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static inline const T &Set(Args&& ...args) {
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Backend = ::std::unique_ptr<T>(new T(::std::forward<Args>(args)...));
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return *dynamic_cast<T *>(Backend.get());
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}
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private:
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static std::unique_ptr<LogBackend> Backend;
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};
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}
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#endif
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