Is there a version of C# messenger Extended that handles errors well?

Unity Engine
1

Currently C# Messenger Extended (on the wiki) seems to handle errors, such as event listeners not existing to a broadcast, very poorly… it actually stops execution of the code being ran, similar to how Unity deals with null references. I don’t understand why the original creator left it that way, but I’d definitely like it to continue execution of code regardless if there are listeners are not.

Is there a version of the messenger system that deals with these errors better?

Example:

void Function ()
{

  DoSomething(); // Ran

  Messenger.Broadcast("My Message"); // No Listener

  DoSomethingAgain();  // Will not run because there was no listener and code stopped executing.
}

Edit:
I cracked open the file to find a solution, and found that you can set a broadcast to not require a listener. It still seems that the code shouldn’t prevent execution if this option isn’t set, but this is good enough to work with.

2

i use getinvocationlist to iterate over all listeners (check MVP-Submitted: Multicast Delegate Internals | Microsoft Learn) and call them after each other checking every call with a try. if exception is thrown i remove the listener.

			foreach(CallbackClass handler in eventTable[(int)eventmsg.MessageType].GetInvocationList())
			{
				try
				{
					handler(eventmsg);
				}
				catch(Exception e)
				{
					Debug.Log("messengerScript.InvokeDelegate: A Callback for " + eventmsg.MessageType + " is invalid and has been removed!");
					RemoveListener(eventmsg.MessageType, callback);
				}
			}
3

There is a battle-tested event system within eDriven framework. You should give it a try.