Added dump methods to stacktrace

include/utils/stacktrace.hpp

@@ -58,17 +58,18 @@ public:
         return lines.size();
     }
 
-    void dump(std::ostream& stream) {
-      std::string message;
-      dump(message);
-      stream << message;
+    template <class Stream>
+    void dump(Stream& stream) {
+      stream << dump();
     }
     
-    void dump(std::string& message) {
+    std::string dump() {
+      std::string message;
       for (int i = 0; i < size(); i++) {
         message.append(fmt::format("at {} ({}) \n", lines[i].function, 
           lines[i].location));    
       }
+      return message;
     }
 
 private:

src/memgraph_bolt.cpp

@@ -22,8 +22,7 @@ static constexpr const char* port = "7687";
 
 void throw_and_stacktace(std::string message) {
   Stacktrace stacktrace;
-  stacktrace.dump(message);
-  logger.info(message);
+  logger.info(stacktrace.dump());
 }
 
 int main(void) {

tests/unit/signal_handler.cpp

@@ -12,11 +12,7 @@ TEST_CASE("SignalHandler Segmentation Fault Test") {
   SignalHandler::register_handler(Signal::SegmentationFault, []() {
     std::cout << "Segmentation Fault" << std::endl;
     Stacktrace stacktrace;
-
-    std::string message;
-    stacktrace.dump(message);
-    std::cout << message << std::endl;
-
+    std::cout << stacktrace.dump() << std::endl;
   });
 
   std::raise(SIGSEGV);