static public Predicate <T> CanAdd <P, T>(HoldingContainer <P> holding_container) where T : Holdable <P>
{
return(delegate(T child) {
FieldInfoEX field_info;
if (child != null)
{
if (child.TryGetHoldingContainerField <P>(out field_info))
{
HoldingContainer <P> current_container = field_info.GetValue(child) as HoldingContainer <P>;
if (current_container != holding_container)
{
if (current_container == null || current_container.Remove(child))
{
field_info.SetValue(child, holding_container);
return true;
}
}
}
}
return false;
});
}
public MExpElement()
{
holding_container = null;
OnConstruct();
}