Svelto.ECS/WeakEvents/SafeEvent.cs

using System;

public static class SafeEvent
{
    public static void SafeRaise<T>(this Action<T> onEvent, T val)
    {
        if (onEvent != null)
        {
            var length = onEvent.GetInvocationList().Length;
            for (int index = 0; index < length; index++)
            {
                Action<T> handler = (Action<T>) onEvent.GetInvocationList()[index];

                try
                {
                    if (handler != null) handler.Invoke(val);
                }
                catch (Exception e)
                {
                    Utility.Console.LogException(e);
                }
            }
        }
    }

    public static void SafeRaise(this Action onEvent)
    {
        if (onEvent != null)
        {
            var length = onEvent.GetInvocationList().Length;
            for (int index = 0; index < length; index++)
            {
                Action handler = (Action)onEvent.GetInvocationList()[index];

                try
                {
                    if (handler != null) handler.Invoke();
                }
                catch (Exception e)
                {
                    Utility.Console.LogException(e);
                }
            }
        }
    }
}