add various callbacks insertion checks

alib2common/src/core/castApi.hpp

@@ -53,14 +53,26 @@ struct castApi {
 	public:
 		template < class From >
 		void add ( ) {
-			castFunctions.insert ( std::make_pair ( std::type_index ( typeid ( From ) ), [] ( const alib::ObjectBase & from ) { return alib::Object ( To ( ( const From & ) from ) ); } ) );
+			bool res = castFunctions.insert ( std::make_pair ( std::type_index ( typeid ( From ) ), [] ( const alib::ObjectBase & from ) { return alib::Object ( To ( ( const From & ) from ) ); } ) ).second;
+			if ( ! res ) {
+				std::string fromName = std::type_name < From > ( );
+				std::string toName = std::type_name < To > ( );
+
+				throw::exception::CommonException ( "Casting from " + fromName + " to " + toName + " already registered." );
+			}
 		}
 		template < class From >
 		void add ( To ( * castFunction )( const From & ) ) {
-			castFunctions.insert ( std::make_pair ( std::type_index ( typeid ( From ) ), [=] ( const alib::ObjectBase & from ) {
+			bool res = castFunctions.insert ( std::make_pair ( std::type_index ( typeid ( From ) ), [=] ( const alib::ObjectBase & from ) {
 					return alib::Object ( ( ( To ( * )( const alib::ObjectBase & ) )castFunction )( from ) );
-				} ) );
+				} ) ).second;
+			if ( ! res ) {
+				std::string fromName = std::type_name < From > ( );
+				std::string toName = std::type_name < To > ( );
+
+				throw::exception::CommonException ( "Casting from " + fromName + " to " + toName + " already registered." );
+			}
 		}
 		template < class From >
@@ -146,7 +158,12 @@ public:
 	class CastPoolStringBinder {
 	public:
 		CastPoolStringBinder ( std::string tagName ) {
-			castFunctionsByString ( ).insert ( std::make_pair ( tagName, & getCastPool < To > ( ) ) );
+			bool res = castFunctionsByString ( ).insert ( std::make_pair ( tagName, & getCastPool < To > ( ) ) ).second;
+			if ( ! res ) {
+				std::string toName = std::type_name < To > ( );
+
+				throw::exception::CommonException ( "String cast pool for " + toName + "already exists." );
+			}
 		}
 	};

alib2common/src/core/multipleDispatch.hpp

@@ -51,7 +51,8 @@ public:
 		}
 		RegistratorWrapper ( RealReturnType ( * callback ) ( FrontStaticParamTypes ..., typename std::match_cv_ref < DispatchedParameterTypes, RealParameterTypeBases >::type && ..., BackStaticParamTypes ... ) ) : m_callback ( callback ) {
-			if ( !getInstance ( ).registeredFunctions.insert ( std::make_pair ( std::make_tuple ( std::type_index ( typeid ( typename std::match_cv_ref < DispatchedParameterTypes, RealParameterTypeBases >::type ) ) ... ), this ) ).second ) {
+			bool res = getInstance ( ).registeredFunctions.insert ( std::make_pair ( std::make_tuple ( std::type_index ( typeid ( typename std::match_cv_ref < DispatchedParameterTypes, RealParameterTypeBases >::type ) ) ... ), this ) ).second;
+			if ( ! res ) {
 				std::stringstream ss;
 				( void ) initializer_list < int > { ( ss << std::type_name < typename std::match_cv_ref < DispatchedParameterTypes, RealParameterTypeBases >::type > ( ), 0 ) ... };
@@ -145,7 +146,8 @@ public:
 		}
 		RegistratorWrapper ( RealReturnType ( * callback ) ( RealParametersType &&, RealParametersType && ) ) : m_callback ( callback ) {
-			if ( !getInstance ( ).registeredFunctions.insert ( std::make_pair ( std::type_index ( typeid ( RealParametersType ) ), this ) ).second ) {
+			bool res = getInstance ( ).registeredFunctions.insert ( std::make_pair ( std::type_index ( typeid ( RealParametersType ) ), this ) ).second;
+			if ( ! res ) {
 				std::string paramsType = std::type_name < RealParametersType > ( );
 				std::string classType = std::type_name < Algorithm > ( );

alib2common/src/core/xmlApi.hpp

@@ -116,8 +116,14 @@ public:
 		std::function < Type ( std::deque < sax::Token >::iterator & ) > parseFunction;
 	public:
-		ParserRegister ( ) : parseFunction ( Type::parse ) {
-			parseFunctions ( ).insert ( std::make_pair ( Type::getXmlTagName(), this ) );
+		ParserRegister( ) : parseFunction ( Type::parse ) {
+			bool res = parseFunctions ( ).insert ( std::make_pair ( Type::getXmlTagName(), this ) ).second;
+			if ( ! res ) {
+				std::string groupName = std::type_name < Group > ( );
+				std::string typeName = std::type_name < Type > ( );
+
+				throw::exception::CommonException ( "Parse callback of " + typeName + " already registered in group " + groupName + "." );
+			}
 		}
 		virtual Group parse ( std::deque < sax::Token >::iterator & input ) {