public void Add(QueryExpression tail)
{
if (tail == null)
{
throw new ArgumentNullException("tail");
}
if (m_next == null)
{
m_next = tail;
}
else
{
m_next.Add(tail);
}
}
public INode Clone()
{
QueryExpression queryExpression = new QueryExpression();
queryExpression.Distinct = m_distinct;
queryExpression.All = m_all;
queryExpression.SetLimit(m_limitFormat, m_limit);
if (m_selectItems != null)
{
queryExpression.SelectItems = (AliasedItem)(m_selectItems.Clone());
}
if (m_from != null)
{
queryExpression.From = (AliasedItem)(m_from.Clone());
}
if (m_where != null)
{
queryExpression.Where = (IExpression)(m_where.Clone());
}
if (m_groupBy != null)
{
queryExpression.GroupBy = (GroupByClause)(m_groupBy.Clone());
}
if (m_orderBy != null)
{
queryExpression.OrderBy = (OrderExpression)(m_orderBy.Clone());
}
if (m_next != null)
{
queryExpression.Add((QueryExpression)(m_next.Clone()));
}
return(queryExpression);
}
