Your IP : 13.59.214.148

Current Path : /lib64/python3.6/lib2to3/fixes/__pycache__/
Upload File :
Current File : //lib64/python3.6/lib2to3/fixes/__pycache__/fix_has_key.cpython-36.pyc

3


 \|�@sBdZddlmZddlmZddlmZmZGdd�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@seZdZdZdZdd�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

Cs�|st�|j}|jj|jkr.|jj|j�r.dS|jd�}|d}|j}dd�|dD�}|dj	�}|jd�}	|	r�dd�|	D�}	|j|j
|j|j|j|j
|j|jfkr�t|�}t|�d	kr�|d
}ntj|j|�}d|_tddd
�}
|�rtddd
�}tj|j||
f�}
tj|j
||
|f�}|	�rBt|�}tj|j|ft|	��}|jj|j
|j|j|j|j|j|j|j|jf	k�r|t|�}||_|S)N�negation�anchorcSsg|]}|j��qS�)�clone)�.0�nr	r	�#/usr/lib64/python3.6/fix_has_key.py�
<listcomp>Rsz'FixHasKey.transform.<locals>.<listcomp>�before�arg�aftercSsg|]}|j��qSr	)r
)rrr	r	r
rVs��� �in)�prefix�not)�AssertionError�syms�parent�typeZnot_test�pattern�match�getrr
Z
comparisonZand_testZor_testZtestZlambdefZargumentr�lenrZNodeZpowerrZcomp_op�tuple�exprZxor_exprZand_exprZ
shift_exprZ
arith_exprZtermZfactor)
�selfZnode�resultsrrrrrrrZn_opZn_not�newr	r	r
�	transformGsF


zFixHasKey.transformN)�__name__�
__module__�__qualname__Z
BM_compatibleZPATTERNr%r	r	r	r
r&srN)	�__doc__�rrZ
fixer_utilrrZBaseFixrr	r	r	r
�<module>s