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Perfect forwarding for arguments

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This commit is contained in:
dkavolis 2020-11-02 00:37:03 +00:00
parent 01b350de96
commit 23572369fc
3 changed files with 40 additions and 40 deletions
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44
include/spdlog/logger.h
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@ -75,58 +75,58 @@ public:
// FormatString is a type derived from fmt::compile_string // FormatString is a type derived from fmt::compile_string
template<typename FormatString, typename std::enable_if<fmt::is_compile_string<FormatString>::value, int>::type = 0, typename... Args> template<typename FormatString, typename std::enable_if<fmt::is_compile_string<FormatString>::value, int>::type = 0, typename... Args>
void log(source_loc loc, level::level_enum lvl, const FormatString &fmt, const Args &...args) void log(source_loc loc, level::level_enum lvl, const FormatString &fmt, Args&&...args)
{ {
log_(loc, lvl, fmt, args...); log_(loc, lvl, fmt, std::forward<Args>(args)...);
} }
// FormatString is NOT a type derived from fmt::compile_string but is a string_view_t or can be implicitly converted to one // FormatString is NOT a type derived from fmt::compile_string but is a string_view_t or can be implicitly converted to one
template<typename... Args> template<typename... Args>
void log(source_loc loc, level::level_enum lvl, string_view_t fmt, const Args &...args) void log(source_loc loc, level::level_enum lvl, string_view_t fmt, Args&&...args)
{ {
log_(loc, lvl, fmt, args...); log_(loc, lvl, fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
void log(level::level_enum lvl, const FormatString &fmt, const Args &...args) void log(level::level_enum lvl, const FormatString &fmt, Args&&...args)
{ {
log(source_loc{}, lvl, fmt, args...); log(source_loc{}, lvl, fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
void trace(const FormatString &fmt, const Args &...args) void trace(const FormatString &fmt, Args&&...args)
{ {
log(level::trace, fmt, args...); log(level::trace, fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
void debug(const FormatString &fmt, const Args &...args) void debug(const FormatString &fmt, Args&&...args)
{ {
log(level::debug, fmt, args...); log(level::debug, fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
void info(const FormatString &fmt, const Args &...args) void info(const FormatString &fmt, Args&&...args)
{ {
log(level::info, fmt, args...); log(level::info, fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
void warn(const FormatString &fmt, const Args &...args) void warn(const FormatString &fmt, Args&&...args)
{ {
log(level::warn, fmt, args...); log(level::warn, fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
void error(const FormatString &fmt, const Args &...args) void error(const FormatString &fmt, Args&&...args)
{ {
log(level::err, fmt, args...); log(level::err, fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
void critical(const FormatString &fmt, const Args &...args) void critical(const FormatString &fmt, Args&&...args)
{ {
log(level::critical, fmt, args...); log(level::critical, fmt, std::forward<Args>(args)...);
} }
template<typename T> template<typename T>
@ -225,7 +225,7 @@ public:
#else #else
template<typename... Args> template<typename... Args>
void log(source_loc loc, level::level_enum lvl, wstring_view_t fmt, const Args &...args) void log(source_loc loc, level::level_enum lvl, wstring_view_t fmt, Args&&...args)
{ {
bool log_enabled = should_log(lvl); bool log_enabled = should_log(lvl);
bool traceback_enabled = tracer_.enabled(); bool traceback_enabled = tracer_.enabled();
@ -237,7 +237,7 @@ public:
{ {
// format to wmemory_buffer and convert to utf8 // format to wmemory_buffer and convert to utf8
fmt::wmemory_buffer wbuf; fmt::wmemory_buffer wbuf;
fmt::format_to(wbuf, fmt, args...); fmt::format_to(wbuf, fmt, std::forward<Args>(args)...);
memory_buf_t buf; memory_buf_t buf;
details::os::wstr_to_utf8buf(wstring_view_t(wbuf.data(), wbuf.size()), buf); details::os::wstr_to_utf8buf(wstring_view_t(wbuf.data(), wbuf.size()), buf);
@ -326,7 +326,7 @@ protected:
// common implementation for after templated public api has been resolved // common implementation for after templated public api has been resolved
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
void log_(source_loc loc, level::level_enum lvl, const FormatString &fmt, const Args &...args) void log_(source_loc loc, level::level_enum lvl, const FormatString &fmt, Args&&...args)
{ {
bool log_enabled = should_log(lvl); bool log_enabled = should_log(lvl);
bool traceback_enabled = tracer_.enabled(); bool traceback_enabled = tracer_.enabled();
@ -337,7 +337,7 @@ protected:
SPDLOG_TRY SPDLOG_TRY
{ {
memory_buf_t buf; memory_buf_t buf;
fmt::format_to(buf, fmt, args...); fmt::format_to(buf, fmt, std::forward<Args>(args)...);
details::log_msg log_msg(loc, name_, lvl, string_view_t(buf.data(), buf.size())); details::log_msg log_msg(loc, name_, lvl, string_view_t(buf.data(), buf.size()));
log_it_(log_msg, log_enabled, traceback_enabled); log_it_(log_msg, log_enabled, traceback_enabled);
} }

4
include/spdlog/pattern_formatter.h
View File

@ -92,9 +92,9 @@ public:
void format(const details::log_msg &msg, memory_buf_t &dest) override; void format(const details::log_msg &msg, memory_buf_t &dest) override;
template<typename T, typename... Args> template<typename T, typename... Args>
pattern_formatter &add_flag(char flag, const Args &...args) pattern_formatter &add_flag(char flag, Args&&...args)
{ {
custom_handlers_[flag] = details::make_unique<T>(args...); custom_handlers_[flag] = details::make_unique<T>(std::forward<Args>(args)...);
return *this; return *this;
} }
void set_pattern(std::string pattern); void set_pattern(std::string pattern);

32
include/spdlog/spdlog.h
View File

@ -128,51 +128,51 @@ SPDLOG_API spdlog::logger *default_logger_raw();
SPDLOG_API void set_default_logger(std::shared_ptr<spdlog::logger> default_logger); SPDLOG_API void set_default_logger(std::shared_ptr<spdlog::logger> default_logger);
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
inline void log(source_loc source, level::level_enum lvl, const FormatString &fmt, const Args &...args) inline void log(source_loc source, level::level_enum lvl, const FormatString &fmt, Args&&...args)
{ {
default_logger_raw()->log(source, lvl, fmt, args...); default_logger_raw()->log(source, lvl, fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
inline void log(level::level_enum lvl, const FormatString &fmt, const Args &...args) inline void log(level::level_enum lvl, const FormatString &fmt, Args&&...args)
{ {
default_logger_raw()->log(source_loc{}, lvl, fmt, args...); default_logger_raw()->log(source_loc{}, lvl, fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
inline void trace(const FormatString &fmt, const Args &...args) inline void trace(const FormatString &fmt, Args&&...args)
{ {
default_logger_raw()->trace(fmt, args...); default_logger_raw()->trace(fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
inline void debug(const FormatString &fmt, const Args &...args) inline void debug(const FormatString &fmt, Args&&...args)
{ {
default_logger_raw()->debug(fmt, args...); default_logger_raw()->debug(fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
inline void info(const FormatString &fmt, const Args &...args) inline void info(const FormatString &fmt, Args&&...args)
{ {
default_logger_raw()->info(fmt, args...); default_logger_raw()->info(fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
inline void warn(const FormatString &fmt, const Args &...args) inline void warn(const FormatString &fmt, Args&&...args)
{ {
default_logger_raw()->warn(fmt, args...); default_logger_raw()->warn(fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
inline void error(const FormatString &fmt, const Args &...args) inline void error(const FormatString &fmt, Args&&...args)
{ {
default_logger_raw()->error(fmt, args...); default_logger_raw()->error(fmt, std::forward<Args>(args)...);
} }
template<typename FormatString, typename... Args> template<typename FormatString, typename... Args>
inline void critical(const FormatString &fmt, const Args &...args) inline void critical(const FormatString &fmt, Args&&...args)
{ {
default_logger_raw()->critical(fmt, args...); default_logger_raw()->critical(fmt, std::forward<Args>(args)...);
} }
template<typename T> template<typename T>