509318396
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  \  ã               @   sN   d Z ddlmZ ddlmZmZmZmZmZm	Z	 dZ
dZG dd„ dejƒZdS )	aÜ  Adjust some old Python 2 idioms to their modern counterparts.

* Change some type comparisons to isinstance() calls:
    type(x) == T -> isinstance(x, T)
    type(x) is T -> isinstance(x, T)
    type(x) != T -> not isinstance(x, T)
    type(x) is not T -> not isinstance(x, T)

* Change "while 1:" into "while True:".

* Change both

    v = list(EXPR)
    v.sort()
    foo(v)

and the more general

    v = EXPR
    v.sort()
    foo(v)

into

    v = sorted(EXPR)
    foo(v)
é   )Ú
fixer_base)ÚCallÚCommaÚNameÚNodeÚ	BlankLineÚsymsz0(n='!=' | '==' | 'is' | n=comp_op< 'is' 'not' >)z(power< 'type' trailer< '(' x=any ')' > >c                   sP   e Zd ZdZdeeeef Z‡ fdd„Zdd„ Zdd„ Z	d	d
„ Z
dd„ Z‡  ZS )Ú	FixIdiomsTaº  
        isinstance=comparison< %s %s T=any >
        |
        isinstance=comparison< T=any %s %s >
        |
        while_stmt< 'while' while='1' ':' any+ >
        |
        sorted=any<
            any*
            simple_stmt<
              expr_stmt< id1=any '='
                         power< list='list' trailer< '(' (not arglist<any+>) any ')' > >
              >
              '\n'
            >
            sort=
            simple_stmt<
              power< id2=any
                     trailer< '.' 'sort' > trailer< '(' ')' >
              >
              '\n'
            >
            next=any*
        >
        |
        sorted=any<
            any*
            simple_stmt< expr_stmt< id1=any '=' expr=any > '\n' >
            sort=
            simple_stmt<
              power< id2=any
                     trailer< '.' 'sort' > trailer< '(' ')' >
              >
              '\n'
            >
            next=any*
        >
    c                s8   t t| ƒj|ƒ}|r4d|kr4|d |d kr0|S d S |S )NÚsortedZid1Zid2)Úsuperr	   Úmatch)ÚselfÚnodeÚr)Ú	__class__© ú0/usr/lib64/python3.6/lib2to3/fixes/fix_idioms.pyr   O   s    zFixIdioms.matchc             C   sH   d|kr| j ||ƒS d|kr(| j||ƒS d|kr<| j||ƒS tdƒ‚d S )NÚ
isinstanceÚwhiler
   zInvalid match)Útransform_isinstanceÚtransform_whileÚtransform_sortÚRuntimeError)r   r   Úresultsr   r   r   Ú	transformZ   s    zFixIdioms.transformc             C   sh   |d j ƒ }|d j ƒ }d|_d|_ttdƒ|tƒ |gƒ}d|kr\d|_ttjtdƒ|gƒ}|j|_|S )NÚxÚTÚ ú r   ÚnÚnot)ÚcloneÚprefixr   r   r   r   r   Znot_test)r   r   r   r   r   Ztestr   r   r   r   d   s    zFixIdioms.transform_isinstancec             C   s    |d }|j td|jd�ƒ d S )Nr   ÚTrue)r"   )Úreplacer   r"   )r   r   r   Zoner   r   r   r   p   s    zFixIdioms.transform_whilec             C   s  |d }|d }|j dƒ}|j dƒ}|r>|jtd|jd�ƒ n8|rn|jƒ }d|_|jttdƒ|g|jd�ƒ ntdƒ‚|jƒ  |j}d	|k�r|r¼|jd	ƒd
 |d
 jf}	d	j	|	ƒ|d
 _nH|j
sÆt‚|jd ksÔt‚tƒ }
|j
j|
ƒ |j|
ksôt‚|jd	ƒd
 |
_d S )NÚsortÚnextÚlistÚexprr
   )r"   r   zshould not have reached hereÚ
é    )Úgetr$   r   r"   r!   r   r   ÚremoveÚ
rpartitionÚjoinÚparentÚAssertionErrorZnext_siblingr   Zappend_child)r   r   r   Z	sort_stmtZ	next_stmtZ	list_callZsimple_exprÚnewZbtwnZprefix_linesZend_liner   r   r   r   t   s0    



zFixIdioms.transform_sort)Ú__name__Ú
__module__Ú__qualname__ZexplicitÚTYPEÚCMPZPATTERNr   r   r   r   r   Ú__classcell__r   r   )r   r   r	   %   s   '
r	   N)Ú__doc__r   r   Z
fixer_utilr   r   r   r   r   r   r6   r5   ZBaseFixr	   r   r   r   r   Ú<module>   s
    