add const ref in compose argument

alib2common/src/primitive/String.cpp

@@ -68,7 +68,7 @@ void String::compose(ext::deque<sax::Token>& out) const {
 	compose(out, this->getData());
 }
-void String::compose(ext::deque<sax::Token>& out, std::string primitive) {
+void String::compose(ext::deque<sax::Token>& out, const std::string & primitive) {
 	out.emplace_back(primitive::String::getXmlTagName(), sax::Token::TokenType::START_ELEMENT);
 	out.emplace_back(primitive, sax::Token::TokenType::CHARACTER);
 	out.emplace_back(primitive::String::getXmlTagName(), sax::Token::TokenType::END_ELEMENT);
@@ -95,7 +95,7 @@ std::string xmlApi<std::string>::xmlTagName() {
 	return primitive::String::getXmlTagName();
 }
-void xmlApi<std::string>::compose(ext::deque<sax::Token>& output, std::string data) {
+void xmlApi<std::string>::compose(ext::deque<sax::Token>& output, const std::string & data) {
 	primitive::String::compose(output, data);
 }

alib2common/src/primitive/String.h

@@ -66,7 +66,7 @@ public:
 	static std::string parseRaw ( ext::deque < sax::Token >::iterator & input );
 	void compose ( ext::deque < sax::Token > & out ) const;
-	static void compose ( ext::deque < sax::Token > & out, std::string primitive );
+	static void compose ( ext::deque < sax::Token > & out, const std::string & primitive );
 	virtual PrimitiveBase * inc ( ) &&;
@@ -86,7 +86,7 @@ struct xmlApi < std::string > {
 	static std::string parse ( ext::deque < sax::Token >::iterator & input );
 	static bool first ( const ext::deque < sax::Token >::const_iterator & input );
 	static std::string xmlTagName ( );
-	static void compose ( ext::deque < sax::Token > & output, std::string data );
+	static void compose ( ext::deque < sax::Token > & output, const std::string & data );
 };
 } /* namespace alib */