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fix_filter.cpython-38.pyc
U e5d� � @ sZ d Z ddlmZ ddlmZ ddlmZ ddlm Z m Z m Z m Z m Z G dd� dej�ZdS ) a� Fixer that changes filter(F, X) into list(filter(F, X)). We avoid the transformation if the filter() call is directly contained in iter(<>), list(<>), tuple(<>), sorted(<>), ...join(<>), or for V in <>:. NOTE: This is still not correct if the original code was depending on filter(F, X) to return a string if X is a string and a tuple if X is a tuple. That would require type inference, which we don't do. Let Python 2.6 figure it out. � )� fixer_base)�Node)�python_symbols)�Name�ArgList�ListComp�in_special_context� parenthesizec @ s e Zd ZdZdZdZdd� ZdS )� FixFilterTaV filter_lambda=power< 'filter' trailer< '(' arglist< lambdef< 'lambda' (fp=NAME | vfpdef< '(' fp=NAME ')'> ) ':' xp=any > ',' it=any > ')' > [extra_trailers=trailer*] > | power< 'filter' trailer< '(' arglist< none='None' ',' seq=any > ')' > [extra_trailers=trailer*] > | power< 'filter' args=trailer< '(' [any] ')' > [extra_trailers=trailer*] > zfuture_builtins.filterc C sL | � |�rd S g }d|kr6|d D ]}|�|�� � q"d|kr�|�d��� }|jtjkrfd|_t|�}t |�d��� |�d��� |�d��� |�}t tj |g| dd�}n�d|kr�t t d �t d �|d �� t d ��}t tj |g| dd�}nTt |�r�d S |d �� }t tj t d �|gdd�}t tj t d �t|g�g| �}d|_|j|_|S )NZextra_trailersZ filter_lambda�xp� �fp�it)�prefixZnoneZ_f�seq�args�filter�list)Z should_skip�appendZclone�get�type�symsZtestr r r r Zpowerr r r )�selfZnodeZresultsZtrailers�tr �newr � r �0/usr/lib64/python3.8/lib2to3/fixes/fix_filter.py� transform: s@ � � zFixFilter.transformN)�__name__� __module__� __qualname__Z BM_compatibleZPATTERNZskip_onr r r r r r s r N)�__doc__r r Zpytreer Zpygramr r Z fixer_utilr r r r r ZConditionalFixr r r r r �<module> s
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