U
    |e                     @   s   d Z ddlZdddddddd	d
ddddddZedejZdd Zdd Z	ddddddddddd d!Z
d"d# Zd$d% Zd&d' Zd(d) Zd*d+ Zd,d- Zd.d/ ZdS )0z
Helper functions for np.timedelta64 and np.datetime64.
For now, multiples-of-units (for example timedeltas expressed in tens
of seconds) are not supported.
    N                     	   
               )YMWDhmsmsusnspsfsas Znatc                 C   s   t |  dk t | dk kS )zB
    Whether the *src* and *dest* units are of the same kind.
    r   DATETIME_UNITSsrcdest r"   X/var/www/website-v5/atlas_env/lib/python3.8/site-packages/numba/np/npdatetime_helpers.py	same_kind(   s    r$   c                 C   sX   t |  } t | }| |krdS | dkr(dS | |kr4dS |dkr@dS | dkrT|dkrTdS dS )NTr   Fr   r   r   r"   r"   r#   can_cast_timedelta_units/   s    r%   )r   r   )r   r   )r      )r   <   )r   r'   )r     )r	   r(   )r
   r(   )r   r(   )r   r(   )r   r(   )r   r   r   r   r   r   r   r	   r
   r   r   c                 C   sb   | dkrdS | }d}||k rNzt | \}}W n tk
rB   Y dS X ||9 }q||krZ|S dS dS )z
    Return an integer multiplier allowing to convert from *big_unit_code*
    to *small_unit_code*.
    None is returned if the conversion is not possible through a
    simple integer multiplication.
    r   r   N)_factorsKeyError)Zbig_unit_codeZsmall_unit_codecfactormultr"   r"   r#   _get_conversion_multiplierU   s    	
r.   c                 C   s   t t|  t| S )zl
    Return an integer multiplier allowing to convert from timedeltas
    of *src_unit* to *dest_unit*.
    )r.   r   )Zsrc_unitZ	dest_unitr"   r"   r#   get_timedelta_conversion_factoro   s    r/   c                 C   s  t |  }t | }|dks |dkr*| ddfS |dk rJ|dkrJtd| |f d\}}|dkr|dkrpd}d	}d}q|dkrd}d
}d}n2|dkr|dkrd}d}d}n|dkrd}d}d}||krt||}|dk	st||f||| |fS t||}|dk	st||f| ||| fS dS )a  
    Compute a possible conversion for combining *datetime_unit* and
    *timedelta_unit* (presumably for adding or subtracting).
    Return (result unit, integer datetime multiplier, integer timedelta
    multiplier). RuntimeError is raised if the combination is impossible.
    r   r   r   z1cannot combine datetime64(%r) and timedelta64(%r))r   r   r   r   i: i  i
  i  i@  N)r   RuntimeErrorr.   AssertionError)datetime_unittimedelta_unitdt_unit_codetd_unit_codeZ	dt_factorZ	td_factorr,   r"   r"   r#   !get_datetime_timedelta_conversionx   sD    


r6   c                 C   sP   t |  }t | }|dkr|S |dkr(| S |dk r<|dkr<dS ||krH| S |S dS )z
    Return the unit result of combining *datetime_unit* with *timedelta_unit*
    (e.g. by adding or subtracting).  None is returned if combining
    those units is forbidden.
    r   r   Nr   )r2   r3   r4   r5   r"   r"   r#    combine_datetime_timedelta_units   s    r7   c                 C   s8   t |  }t | }|dkr|S |dkr(| S ||kr4|S | S )z9
    Get the best (i.e. finer-grained) of two units.
    r   r   )Zunit_aZunit_babr"   r"   r#   get_best_unit   s    r:   c                 C   s   d S Nr"   r8   r9   r"   r"   r#   datetime_minimum   s    r=   c                 C   s   d S r;   r"   r<   r"   r"   r#   datetime_maximum   s    r>   )__doc__numpynpr   timedelta64astypeint64ZNATr$   r%   r)   r.   r/   r6   r7   r:   r=   r>   r"   r"   r"   r#   <module>   sL   	4