/// <summary>
/// Add operator overwrite
/// </summary>
/// <param name="e">AsyncEvent instance</param>
/// <param name="callback">Callback delegate to add</param>
/// <returns>AsyncEvent instance</returns>
public static AsyncEvent <TEventArgs> operator +(AsyncEvent <TEventArgs> e, Func <object, TEventArgs, Task> callback)
{
if (callback == null)
{
throw new NullReferenceException("callback is null");
}
if (e == null)
{
e = new AsyncEvent <TEventArgs>();
}
lock (e._locker)
{
e._invocationList.Add(callback);
e._dirty = true;
}
return(e);
}
/// <summary>
/// Add operator overwrite
/// </summary>
/// <param name="e">AsyncEvent instance</param>
/// <param name="callback">Callback delegate to add</param>
/// <returns>AsyncEvent instance</returns>
public static AsyncEvent <TEventArgs> operator +(AsyncEvent <TEventArgs> e, Func <object, TEventArgs, Task> callback)
{
if (callback is null)
{
throw new NullReferenceException("callback is null");
}
if (e is null)
{
e = new AsyncEvent <TEventArgs>();
}
lock (e._locker)
{
if (e._funcsInvocationList is null)
{
e._funcsInvocationList = new List <Func <object, TEventArgs, Task> >();
}
e._funcsInvocationList.Add(callback);
e._callFuncArray = e._funcsInvocationList.ToArray();
}
return(e);
}
