protected virtual Expression BaseVisitNhSum(SumExpression expression) { Expression nx = base.VisitExpression(expression.Expression); return nx != expression.Expression ? new SumExpression(nx) : expression; }
protected virtual Expression VisitNhSum(SumExpression expression) { return VisitUnhandledItem<SumExpression, Expression>(expression, "VisitNhSum", BaseVisitNhSum); }