Added final keywords

include/spdlog/common.h

@@ -120,7 +120,7 @@ enum class pattern_time_type {
 //
 // Log exception
 //
-class SPDLOG_API spdlog_ex : public std::exception {
+class SPDLOG_API spdlog_ex final : public std::exception {
 public:
     explicit spdlog_ex(std::string msg);
 

include/spdlog/sinks/dup_filter_sink.h

@@ -37,7 +37,7 @@
 namespace spdlog {
 namespace sinks {
 template <typename Mutex>
-class dup_filter_sink : public dist_sink<Mutex> {
+class dup_filter_sink final : public dist_sink<Mutex> {
 public:
     template <class Rep, class Period>
     explicit dup_filter_sink(std::chrono::duration<Rep, Period> max_skip_duration, level notification_level = level::info)

include/spdlog/sinks/syslog_sink.h

@@ -17,7 +17,7 @@ namespace sinks {
  * Sink that write to syslog using the `syscall()` library call.
  */
 template <typename Mutex>
-class syslog_sink : public base_sink<Mutex> {
+class syslog_sink final : public base_sink<Mutex> {
 public:
     syslog_sink(std::string ident, int syslog_option, int syslog_facility, bool enable_formatting)
         : enable_formatting_{enable_formatting},

tests/test_errors.cpp

@@ -10,7 +10,7 @@
 #define SIMPLE_LOG "test_logs/simple_log.txt"
 #define SIMPLE_ASYNC_LOG "test_logs/simple_async_log.txt"
 
-class failing_sink : public spdlog::sinks::base_sink<std::mutex> {
+class failing_sink final : public spdlog::sinks::base_sink<std::mutex> {
 protected:
     void sink_it_(const spdlog::details::log_msg &) final { throw std::runtime_error("some error happened during log"); }
 

tests/test_pattern_formatter.cpp

@@ -292,7 +292,7 @@ TEST_CASE("clone-formatter-2", "[pattern_formatter]") {
     REQUIRE(to_string_view(formatted_1) == to_string_view(formatted_2));
 }
 
-class custom_test_flag : public spdlog::custom_flag_formatter {
+class custom_test_flag final : public spdlog::custom_flag_formatter {
 public:
     explicit custom_test_flag(std::string txt)
         : some_txt{std::move(txt)} {}