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편집 파일: fix_has_key.cpython-35.pyc
��Yf� � @ si d Z d d l m Z d d l m Z d d l m Z d d l m Z m Z Gd d � d e j � Z d S) 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)�token)� fixer_base)�Name� parenthesizec @ s( e Z d Z d Z d Z d d � Z d S)� 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. | s t � | j } | j j | j k rC | j j | j � rC d S| j d � } | d } | j } d d � | d D� } | d j � } | j d � } | r� d d � | D� } | j | j | j | j | j | j | j | j f k r� t | � } t | � d k r| d } n t j | j | � } d | _ t d d d �} | r{t d d d �} t j | j | | f � } t j | j | | | f � } | r�t | � } t j | j | f t | � � } | j j | j | j | j | j | j | j | j | j | j f k r!t | � } | | _ | S)N�negation�anchorc S s g | ] } | j � � q S� )�clone)�.0�nr r �>/opt/alt/python35/lib64/python3.5/lib2to3/fixes/fix_has_key.py� <listcomp>S s z'FixHasKey.transform.<locals>.<listcomp>�before�arg�afterc S s g | ] } | j � � q Sr )r )r r r r r r W 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 � transformH sF ! " zFixHasKey.transformN)�__name__� __module__� __qualname__Z BM_compatibleZPATTERNr% r r r r r ' s r N) �__doc__� r Zpgen2r r Z fixer_utilr r ZBaseFixr r r r r �<module> s