Mark types that have no inheritors as final.

modules/database/db_flatfile.cpp

@@ -15,7 +15,7 @@
 #include <sys/wait.h>
 #endif
 
-class SaveData
+class SaveData final
 	: public Serialize::Data
 {
 public:
@@ -34,7 +34,7 @@ public:
 	}
 };
 
-class LoadData
+class LoadData final
 	: public Serialize::Data
 {
 public:
@@ -101,7 +101,7 @@ public:
 	}
 };
 
-class DBFlatFile
+class DBFlatFile final
 	: public Module
 	, public Pipe
 {

modules/database/db_old.cpp

@@ -94,7 +94,7 @@ else \
 #define OLD_NEWS_OPER	1
 #define OLD_NEWS_RANDOM	2
 
-static struct mlock_info
+static struct mlock_info final
 {
 	char c;
 	uint32_t m;
@@ -309,7 +309,7 @@ static char *strscpy(char *d, const char *s, size_t len)
 	return d_orig;
 }
 
-struct dbFILE
+struct dbFILE final
 {
 	int mode;				/* 'r' for reading, 'w' for writing */
 	FILE *fp;				/* The normal file descriptor */
@@ -1297,7 +1297,7 @@ static void LoadNews()
 	close_db(f);
 }
 
-class DBOld
+class DBOld final
 	: public Module
 {
 	PrimitiveExtensibleItem<uint32_t> mlock_on, mlock_off, mlock_limit;

modules/database/db_redis.cpp

@@ -14,7 +14,7 @@ using namespace Redis;
 class DatabaseRedis;
 static DatabaseRedis *me;
 
-class Data
+class Data final
 	: public Serialize::Data
 {
 public:
@@ -52,7 +52,7 @@ public:
 	}
 };
 
-class TypeLoader
+class TypeLoader final
 	: public Interface
 {
 	Anope::string type;
@@ -62,7 +62,7 @@ public:
 	void OnResult(const Reply &r) override;
 };
 
-class ObjectLoader
+class ObjectLoader final
 	: public Interface
 {
 	Anope::string type;
@@ -74,7 +74,7 @@ public:
 	void OnResult(const Reply &r) override;
 };
 
-class IDInterface
+class IDInterface final
 	: public Interface
 {
 	Reference<Serializable> o;
@@ -84,7 +84,7 @@ public:
 	void OnResult(const Reply &r) override;
 };
 
-class Deleter
+class Deleter final
 	: public Interface
 {
 	Anope::string type;
@@ -95,7 +95,7 @@ public:
 	void OnResult(const Reply &r) override;
 };
 
-class Updater
+class Updater final
 	: public Interface
 {
 	Anope::string type;
@@ -106,7 +106,7 @@ public:
 	void OnResult(const Reply &r) override;
 };
 
-class ModifiedObject
+class ModifiedObject final
 	: public Interface
 {
 	Anope::string type;
@@ -117,7 +117,7 @@ public:
 	void OnResult(const Reply &r) override;
 };
 
-class SubscriptionListener
+class SubscriptionListener final
 	: public Interface
 {
 public:
@@ -126,7 +126,7 @@ public:
 	void OnResult(const Reply &r) override;
 };
 
-class DatabaseRedis
+class DatabaseRedis final
 	: public Module
 	, public Pipe
 {

modules/database/db_sql.cpp

@@ -34,7 +34,7 @@ public:
 	}
 };
 
-class ResultSQLSQLInterface
+class ResultSQLSQLInterface final
 	: public SQLSQLInterface
 {
 	Reference<Serializable> obj;
@@ -57,7 +57,7 @@ public:
 	}
 };
 
-class DBSQL
+class DBSQL final
 	: public Module
 	, public Pipe
 {

modules/database/db_sql_live.cpp

@@ -11,7 +11,7 @@
 
 using namespace SQL;
 
-class DBMySQL
+class DBMySQL final
 	: public Module
 	, public Pipe
 {