/// <summary>
/// Finds applicable subscribers, and has them handle the specified event, on the current thread.
/// </summary>
/// <param name="evnt">The event to handle.</param>
/// <param name="exceptions">Stores exceptions throws by event handlers.</param>
protected internal void Handle(EventBase evnt, List <Exception> exceptions)
{
if (evnt.NullReference())
{
throw Exc.Null(nameof(evnt));
}
if (exceptions.NullReference())
{
throw Exc.Null(nameof(exceptions));
}
lock (this.syncLock)
{
var eventTypeInfo = evnt.GetType().GetTypeInfo();
for (int i = 0; i < this.subscribers.Count;)
{
var wrapper = this.subscribers[i];
if (EventBase.CanHandle(wrapper.EventHandlerEventTypeInfo, eventTypeInfo))
{
bool referenceFound = true;
try
{
wrapper.Handle(evnt, out referenceFound);
}
catch (Exception ex)
{
exceptions.Add(ex);
}
if (referenceFound)
{
// event handled: continue
++i;
}
else
{
// GC already collected the event handler: remove wrapper and continue
this.subscribers.RemoveAt(i);
}
}
else
{
// event handler not compatible with event: continue
++i;
}
}
}
}
