Add missing nodiscard declarations to event module

include/ls-std/event/Event.hpp

@@ -3,7 +3,7 @@
  * Company:         Lynar Studios
  * E-Mail:          webmaster@lynarstudios.com
  * Created:         2020-11-26
- * Changed:         2023-02-04
+ * Changed:         2023-02-06
  *
  * */
 
@@ -27,11 +27,11 @@ namespace ls::std::event
 
       // additional functionality
 
-      bool addParameter(const ls::std::core::type::event_parameter &_eventParameter);
+      bool addParameter(const ls::std::core::type::event_parameter &_eventParameter); // nodiscard is optional here
       void clearParameterList();
-      ls::std::core::type::event_id getId();
-      ls::std::core::type::event_parameter_list getParameterList();
-      bool removeParameter(const ls::std::core::type::event_parameter_id &_id);
+      [[nodiscard]] ls::std::core::type::event_id getId();
+      [[nodiscard]] ls::std::core::type::event_parameter_list getParameterList();
+      bool removeParameter(const ls::std::core::type::event_parameter_id &_id); // nodiscard is optional here
       void setId(const ls::std::core::type::event_id &_id);
 
     private:
@@ -40,7 +40,7 @@ namespace ls::std::event
       ls::std::core::type::event_parameter_list parameterList{};
 
       void _assignId(const ls::std::core::type::event_id &_id);
-      bool _hasParameter(const ls::std::core::type::event_id &_id);
+      [[nodiscard]] bool _hasParameter(const ls::std::core::type::event_id &_id);
   };
 }
 

include/ls-std/event/EventHandler.hpp

@@ -3,7 +3,7 @@
  * Company:         Lynar Studios
  * E-Mail:          webmaster@lynarstudios.com
  * Created:         2020-11-27
- * Changed:         2023-02-04
+ * Changed:         2023-02-06
  *
  * */
 
@@ -27,7 +27,7 @@ namespace ls::std::event
       explicit EventHandler(const ls::std::core::type::event_id &_id);
       ~EventHandler() override;
 
-      ls::std::core::type::event_id getId();
+      [[nodiscard]] ls::std::core::type::event_id getId();
 
     private:
 

include/ls-std/event/EventManager.hpp

@@ -3,7 +3,7 @@
  * Company:         Lynar Studios
  * E-Mail:          webmaster@lynarstudios.com
  * Created:         2020-11-27
- * Changed:         2023-02-04
+ * Changed:         2023-02-06
  *
  * */
 
@@ -34,17 +34,17 @@ namespace ls::std::event
 
       // additional functionality
 
-      bool addEventHandler(const ::std::shared_ptr<ls::std::event::EventHandler> &_eventHandler);
+      bool addEventHandler(const ::std::shared_ptr<ls::std::event::EventHandler> &_eventHandler); // nodiscard is optional here
       void fire(ls::std::event::Event _event);
-      bool hasEventHandler(const ls::std::core::type::event_id &_id);
-      bool removeEventHandler(const ::std::shared_ptr<ls::std::event::EventHandler> &_eventHandler);
+      [[nodiscard]] bool hasEventHandler(const ls::std::core::type::event_id &_id);
+      bool removeEventHandler(const ::std::shared_ptr<ls::std::event::EventHandler> &_eventHandler); // nodiscard is optional here
 
     private:
 
       ::std::map<ls::std::core::type::event_id, ::std::shared_ptr<ls::std::event::EventHandler>> eventHandlers{};
 
-      bool _hasEventHandler(const ls::std::core::type::event_id &_id);
-      bool _removeEventHandler(const ::std::shared_ptr<ls::std::event::EventHandler> &_eventHandler);
+      [[nodiscard]] bool _hasEventHandler(const ls::std::core::type::event_id &_id);
+      [[nodiscard]] bool _removeEventHandler(const ::std::shared_ptr<ls::std::event::EventHandler> &_eventHandler);
   };
 }
 

include/ls-std/event/Narrator.hpp

@@ -25,17 +25,17 @@ namespace ls::std::event
       Narrator();
       ~Narrator() override;
 
-      bool addListener(const ::std::shared_ptr<ls::std::core::interface_type::IListener> &_listener);
+      bool addListener(const ::std::shared_ptr<ls::std::core::interface_type::IListener> &_listener); // nodiscard is optional here
       void clear();
-      ::std::list<::std::shared_ptr<ls::std::core::interface_type::IListener>> getListeners();
-      bool removeListener(const ::std::shared_ptr<ls::std::core::interface_type::IListener> &_listener);
+      [[nodiscard]] ::std::list<::std::shared_ptr<ls::std::core::interface_type::IListener>> getListeners();
+      bool removeListener(const ::std::shared_ptr<ls::std::core::interface_type::IListener> &_listener); // nodiscard is optional here
       void tell(const ls::std::core::Class &_info);
 
     private:
 
       ::std::list<::std::shared_ptr<ls::std::core::interface_type::IListener>> listeners{};
 
-      bool _hasListener(const ::std::shared_ptr<ls::std::core::interface_type::IListener> &_listener);
+      [[nodiscard]] bool _hasListener(const ::std::shared_ptr<ls::std::core::interface_type::IListener> &_listener);
   };
 }
 

include/ls-std/event/serialization/SerializableJsonEvent.hpp

@@ -3,7 +3,7 @@
  * Company:         Lynar Studios
  * E-Mail:          webmaster@lynarstudios.com
  * Created:         2020-12-07
- * Changed:         2023-02-04
+ * Changed:         2023-02-06
  *
  * */
 
@@ -28,12 +28,12 @@ namespace ls::std::event
 
       // implementation
 
-      ls::std::core::type::byte_field marshal() override;
+      [[nodiscard]] ls::std::core::type::byte_field marshal() override;
       void unmarshal(const ls::std::core::type::byte_field &_data) override;
 
       // additional functionality
 
-      ::std::shared_ptr<ls::std::event::Event> getValue();
+      [[nodiscard]] ::std::shared_ptr<ls::std::event::Event> getValue();
       void setValue(const ::std::shared_ptr<ls::std::event::Event> &_value);
 
     private:

test/cases/event/EventManagerTest.cpp

@@ -3,7 +3,7 @@
  * Company:         Lynar Studios
  * E-Mail:          webmaster@lynarstudios.com
  * Created:         2020-11-27
- * Changed:         2023-02-05
+ * Changed:         2023-02-06
  *
  * */
 
@@ -191,7 +191,7 @@ namespace
           try
           {
             EventManager eventManager{};
-            eventManager.hasEventHandler("");
+            bool hasHandler = eventManager.hasEventHandler("");
           }
           catch (const IllegalArgumentException &_exception)
           {