B   ›\­ã@s˜dZddlZdddddddd d d d d dddœZe d¡ ej¡Zdd„Zdd„Z ddddddddddd d!œ Z d"d#„Z d$d%„Z d&d'„Z d(d)„Zd*d+„ZdS),z Helper functions for np.timedelta64 and np.datetime64. For now, multiples-of-units (for example timedeltas expressed in tens of seconds) are not supported. éNéééééééé é é é é é)ÚYÚMÚWÚDÚhÚmÚsZmsÚusÚnsZpsZfsÚasÚZnatcCst|dkt|dkkS)zB Whether the *src* and *dest* units are of the same kind. r)ÚDATETIME_UNITS)ÚsrcÚdest©rú/lib/python3.7/site-packages/numba/npdatetime.pyÚ same_kind(srcCsXt|}t|}||krdS|dkr(dS||kr4dS|dkr@dS|dkrT|dkrTdSdS)NTrFr)r)rrrrrÚcan_cast_timedelta_units/sr )rr )rr)ré)ré<)rr")riè)r iè)r iè)r iè)r iè)r iè) rrrrrrrr r r r cCsd|dkr dS|}d}x:||krNyt|\}}Wntk rBdSX||9}qW||kr\|SdSdS)zÍ 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. rrN)Ú_factorsÚKeyError)Z big_unit_codeZsmall_unit_codeÚcÚfactorZmultrrrÚ_get_conversion_multiplierUs   r'cCstt|t|ƒS)zl Return an integer multiplier allowing to convert from timedeltas of *src_unit* to *dest_unit*. )r'r)Zsrc_unitZ dest_unitrrrÚget_timedelta_conversion_factorosr(cCst|}t|}|dks |dkr*|ddfS|dkrJ|dkrJtd||fƒ‚d\}}|dkr†|dkrpd}d }d}q¸|dkr¸d}d }d}n2|dkr¸|dkr¤d}d }d}n|dkr¸d}d }d}||krìt||ƒ}|d k sÞt||fƒ‚||||fSt||ƒ}|d k s t||fƒ‚||||fSd 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. rrrz1cannot combine datetime64(%r) and timedelta64(%r))rrrri±:iið iÀi@ƒN)rÚ RuntimeErrorr'ÚAssertionError)Ú datetime_unitÚtimedelta_unitÚ dt_unit_codeÚ td_unit_codeZ dt_factorZ td_factorr&rrrÚ!get_datetime_timedelta_conversionxsB    r/cCsPt|}t|}|dkr|S|dkr(|S|dkr<|dkrsD  4