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linecache.cpython-38.pyc
U e5d� � @ sn d Z ddlZddlZddlZddlZdddgZddd�Zi add� Zddd �Z dd d�Z dd d �Z d d� Z dS )z�Cache 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. � N�getline� clearcache� checkcachec C s: t | |�}d| kr"t|�kr2n n ||d S dS d S )N� � )�getlines�len)�filename�lineno�module_globals�lines� r �!/usr/lib64/python3.8/linecache.pyr s c C s i a dS )zClear the cache entirely.N)�cacher r r r r s c C sX | t kr(t | }t|�dkr(t | d S z t| |�W S tk rR t� g Y S X dS )z�Get 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� | dkrt t�� �}n| tkr&| g}ndS |D ]�} t| }t|�dkrHq.|\}}}}|dkr^q.zt�|�}W n$ tk r� t�| d� Y q.Y nX ||jks�||j kr.t�| d� q.dS )zUDiscard cache entries that are out of date. (This is not checked upon each call!)Nr ) �listr �keysr �os�stat�OSError�pop�st_size�st_mtime)r � filenamesr �size�mtimer �fullnamer r r r r 5 s& c C s� | t kr$tt | �dkr$t �| d� | r<| �d�r@| �d�r@g S | }zt�|�}W �n tk �rn | }t| |�r�zt | d � }W n t tfk r� Y nDX |dkr�g Y S t|�ddd� |� � D �|ft | < t | d Y S tj � | �r�g Y S t j D ]d}ztj �||�}W n ttfk �r0 Y q�Y nX zt�|�}W �qjW q� tk �r^ Y q�X q�g Y S Y nX z"t�|��}|�� }W 5 Q R X W n tk �r� g Y S X |�r�|d �d ��s�|d d 7 < |j|j } } | | ||ft | < |S ) z�Update 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 N�<�>r c S s g | ] }|d �qS )� r )�.0�liner r r � <listcomp>q s z updatecache.<locals>.<listcomp>r ���r" )r r r � startswith�endswithr r r � lazycache� ImportError� splitlines�path�isabs�sys�join� TypeError�AttributeError�tokenize�open� readlinesr r ) r r r r �basename�data�dirname�fpr r r r r r r R s\ � r c C s� | t kr tt | �dkr dS dS | r8| �d�r<| �d�r<dS |r�d|kr�|�d�}|d }t|dd �}|r�|r�t�||�}|ft | < dS dS ) 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( �get�getattr� functools�partial)r r �name�loaderr; � get_linesr r r r) � s r) )N)N)N)N) �__doc__r> r. r r2 �__all__r r r r r r r) r r r r �<module> s A
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