← Back
Editing: fix_has_key.cpython-38.pyc
U i�f| � @ sB d Z ddlmZ ddlmZ ddlmZmZ G dd� dej�ZdS )a& Fixer for has_key(). Calls to .has_key() methods are expressed in terms of the 'in' operator: d.has_key(k) -> k in d CAVEATS: 1) While the primary target of this fixer is dict.has_key(), the fixer will change any has_key() method call, regardless of its class. 2) Cases like this will not be converted: m = d.has_key if m(k): ... Only *calls* to has_key() are converted. While it is possible to convert the above to something like m = d.__contains__ if m(k): ... this is currently not done. � )�pytree)� fixer_base)�Name� parenthesizec @ s e Zd ZdZdZdd� ZdS )� FixHasKeyTa� anchor=power< before=any+ trailer< '.' 'has_key' > trailer< '(' ( not(arglist | argument<any '=' any>) arg=any | arglist<(not argument<any '=' any>) arg=any ','> ) ')' > after=any* > | negation=not_test< 'not' anchor=power< before=any+ trailer< '.' 'has_key' > trailer< '(' ( not(arglist | argument<any '=' any>) arg=any | arglist<(not argument<any '=' any>) arg=any ','> ) ')' > > > c C s� |st �| j}|jj|jkr.| j�|j�r.d S |�d�}|d }|j}dd� |d D �}|d � � }|�d�} | r�dd� | D �} |j|j |j|j |j |j |j|jfkr�t|�}t|�d kr�|d }nt�|j|�}d |_td d d �} |�rtdd d �} t�|j| | f�} t�|j || |f�} | �rBt| �} t�|j| ft| � �} |jj|j |j|j|j|j|j |j |j |jf k�r|t| �} || _| S )N�negation�anchorc S s g | ] }|� � �qS � ��clone��.0�nr r �>/opt/alt/python38/lib64/python3.8/lib2to3/fixes/fix_has_key.py� <listcomp>R s z'FixHasKey.transform.<locals>.<listcomp>�before�arg�afterc S s g | ] }|� � �qS r r r r r r r V s � � � �in)�prefix�not) �AssertionError�syms�parent�typeZnot_test�pattern�match�getr r Z comparisonZand_testZor_testZtestZlambdefZargumentr �lenr ZNodeZpowerr Zcomp_op�tuple�exprZxor_exprZand_exprZ shift_exprZ arith_exprZtermZfactor) �selfZnodeZresultsr r r r r r r Zn_opZn_not�newr r r � transformG sX � � �zFixHasKey.transformN)�__name__� __module__� __qualname__Z BM_compatibleZPATTERNr& r r r r r & s r N) �__doc__� r r Z fixer_utilr r ZBaseFixr r r r r �<module> s
Save File
Cancel