Yf @ s d Z d d l Z d d l Z d d l Z d d l Z d d d g Z d d d Z i a d d Z d d d Z d d
d Z
d d d Z d
d Z d S)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
checkcachec C sE t | | } d | k o, t | k n r= | | d Sd Sd S)N )getlineslen)filenamelinenomodule_globalslines r
./opt/alt/python35/lib64/python3.5/linecache.pyr s " c C s
i a d S)zClear the cache entirely.N)cacher
r
r
r r s c C si | t k r4 t | } t | d k r4 t | d Sy t | | SWn t k
rd t g SYn Xd S)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.r N)r r updatecache MemoryErrorr )r r entryr
r
r r % s
r c C s | d k r! t t j } n | t k r9 | g } n d Sx | D] } t | } t | d k ri qD | \ } } } } | d k r qD y t j | } Wn t k
r t | =wD Yn X| | j k s | | j k rD t | =qD Wd S)zUDiscard cache entries that are out of date.
(This is not checked upon each call!)Nr ) listr keysr osstatOSErrorst_sizest_mtime)r filenamesr sizemtimer fullnamer r
r
r r 5 s&
c " C s5 | t k r) t t | d k r) t | =| sN | j d rR | j d rR g S| } y t j | } Wn0t k
r| } t | | r y t | d } Wn t t f k
r YnL X| d k r g St | d d d | j D | f t | <t | d St j
j | r!g Sxu t j
D]f } y t j
j
| | } Wn t t f k
rgw+Yn Xy t j | } PWq+t k
rYq+Xq+Wg SYn Xy) t j | } | j } Wd QRXWn t k
rg SYn X| r| d
j d r| d d 7<| j | j } }
| |
| | f t | <| S) zUpdate a cache entry and return its list of lines.
If something's wrong, print a message, discard the cache entry,
and return an empty list.r <>r Nc S s g | ] } | d q S)
r
).0liner
r
r
<listcomp>q s z updatecache.<locals>.<listcomp>r r! r% )r r
startswithendswithr r r lazycache ImportError
splitlinespathisabssysjoin TypeErrorAttributeErrortokenizeopen readlinesr r ) r r r r basenamedatadirnamefpr r r r
r
r r R sV %
#
r c C s | t k r* t t | d k r& d Sd S| sO | j d rS | j d rS d S| r d | k r | j d } | d } t | d d } | r | r t j | | } | f t | <d Sd S)
a Seed 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.
r TFr r
__loader____name__
get_sourceN)r r r& r' getgetattr functoolspartial)r r nameloaderr: get_linesr
r
r r( s
%
r( )
__doc__r= r- r r1 __all__r r r r r r r( r
r
r
r <module> s A