static public void PivotRight <LEFT_TYPE, RIGHT_TYPE>(this BidirectionalDictionary <LEFT_TYPE, RIGHT_TYPE> item, RIGHT_TYPE old_value, RIGHT_TYPE new_value)
{
LEFT_TYPE left;
if (item.TryGetValueByRight(old_value, out left))
{
item.Update(left, new_value);
}
}
static public LEFT_TYPE GetValueByRight <LEFT_TYPE, RIGHT_TYPE>(this BidirectionalDictionary <LEFT_TYPE, RIGHT_TYPE> item, RIGHT_TYPE right, LEFT_TYPE default_value)
{
LEFT_TYPE left;
if (item.TryGetValueByRight(right, out left) == false)
{
left = default_value;
}
return(left);
}
