protected virtual EXPR_ITEM CloneExprItem(openehr.openehr.am.archetype.assertion.EXPR_UNARY_OPERATOR o)
{
EXPR_UNARY_OPERATOR result = new EXPR_UNARY_OPERATOR();
if (o.type() != null)
result.type = o.type().ToString();
if (o.@operator().value() >= 2001 && o.@operator().value() <= 2020)
result.@operator = ((OPERATOR_KIND)o.@operator().value()) - 2001;
result.precedence_overridden = o.precedence_overridden();
if (o.operand() != null)
result.operand = CloneExprItem(o.operand());
return result;
}