­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ 3 \@sndZddlZddlZddlZddlZdddgZdddZiaddZddd Z dd dZ dd d Z d dZ dS)zCache lines from Python source files. This is intended to read lines from modules imported -- hence if a filename is not found, it will look down the module search path for a file by that name. Ngetline clearcache checkcachecCs:t||}d|ko t|knr2||dSdSdS)N)getlineslen)filenamelinenomodule_globalslinesr !/usr/lib64/python3.6/linecache.pyrs  cCsiadS)zClear the cache entirely.N)cacher r r rrsc CsR|tkr(t|}t|dkr(t|dSy t||Stk rLtgSXdS)zGet the lines for a Python source file from the cache. Update the cache if it doesn't contain an entry for this file already.rN)rr updatecache MemoryErrorr)r r entryr r rr%s   rc Cs|dkrttj}n|tkr&|g}ndSx~|D]v}t|}t|dkrJq0|\}}}}|dkr`q0ytj|}Wntk rt|=w0YnX||jks||jkr0t|=q0WdS)zUDiscard cache entries that are out of date. (This is not checked upon each call!)Nr) listrkeysrosstatOSErrorst_sizest_mtime)r filenamesrsizemtimer fullnamerr r rr5s&   c "Cs|tkrtt|dkrt|=| s8|jdr<|jdrrNcSsg|] }|dqS) r ).0liner r r qszupdatecache..rr!r%)rr startswithendswithrrr lazycache ImportError splitlinespathisabssysjoin TypeErrorAttributeErrortokenizeopen readlinesrr) r r rrbasenamedatadirnamefpr rrr r rrRsV        rcCs|tkr tt|dkrdSdS| s:|jdr>|jdr>dS|rd|kr|jd}|d}t|dd }|r|rtj||}|ft|<dSdS) aSeed the cache for filename with module_globals. The module loader will be asked for the source only when getlines is called, not immediately. If there is an entry in the cache already, it is not altered. :return: True if a lazy load is registered in the cache, otherwise False. To register such a load a module loader with a get_source method must be found, the filename must be a cachable filename, and the filename must not be already cached. rTFrr __loader____name__ get_sourceN)rrr&r'getgetattr functoolspartial)r r nameloaderr: get_linesr r rr(s      r()N)N)N)N) __doc__r=r-rr1__all__rrrrrrr(r r r rs     A