U
    hV                     @   sn   d Z ddlmZ ddlmZ ddlmZ ddlm	Z	m
Z
mZ dZG dd dejZd	d
 Zdd Zdd ZdS )a  
Based on fix_next.py by Collin Winter.

Replaces it.next() -> next(it), per PEP 3114.

Unlike fix_next.py, this fixer doesn't replace the name of a next method with __next__,
which would break Python 2 compatibility without further help from fixers in
stage 2.
    )token)python_symbols)
fixer_base)NameCallfind_bindingz;Calls to builtin next() possibly shadowed by global bindingc                       s0   e Zd ZdZdZdZ fddZdd Z  ZS )FixNextCallTz
    power< base=any+ trailer< '.' attr='next' > trailer< '(' ')' > >
    |
    power< head=any+ trailer< '.' attr='next' > not trailer< '(' ')' > >
    |
    global=global_stmt< 'global' any* 'next' any* >
    prec                    s>   t t| || td|}|r4| |t d| _nd| _d S )NnextTF)superr   
start_treer   warningbind_warningshadowed_next)selftreefilenamen	__class__ Q/var/www/html/venv/lib/python3.8/site-packages/libfuturize/fixes/fix_next_call.pyr       s    
zFixNextCall.start_treec                 C   s   |st |d}|d}|d}|rf| jr2qdd |D }d|d _|ttd|jd	| nb|rln\|rt|r|d
 }ddd |D 	 dkr| 
|t d S nd|kr| 
|t d| _d S )Nbaseattrnamec                 S   s   g | ]}|  qS r   )clone.0r   r   r   r   
<listcomp>7   s     z)FixNextCall.transform.<locals>.<listcomp> r   r
   )prefixheadc                 S   s   g | ]}t |qS r   )strr   r   r   r   r   E   s     __builtin__globalT)AssertionErrorgetr   r    replacer   r   is_assign_targetjoinstripr   r   )r   noderesultsr   r   r   r!   r   r   r   	transform*   s*    



zFixNextCall.transform)	__name__
__module____qualname__ZBM_compatibleZPATTERNorderr   r-   __classcell__r   r   r   r   r      s
   
r   c                 C   sF   t | }|d krdS |jD ]&}|jtjkr0 dS t|| r dS qdS )NFT)find_assignchildrentyper   EQUAL
is_subtree)r+   Zassignchildr   r   r   r(   R   s    

r(   c                 C   s4   | j tjkr| S | j tjks&| jd kr*d S t| jS N)r5   symsZ	expr_stmtZsimple_stmtparentr3   r+   r   r   r   r3   ^   s
    r3   c                    s$   |  krdS t  fdd| jD S )NTc                 3   s   | ]}t | V  qd S r9   )r7   )r   cr<   r   r   	<genexpr>h   s     zis_subtree.<locals>.<genexpr>)anyr4   )rootr+   r   r<   r   r7   e   s    r7   N)__doc__Zlib2to3.pgen2r   Zlib2to3.pygramr   r:   Zlib2to3r   Zlib2to3.fixer_utilr   r   r   r   ZBaseFixr   r(   r3   r7   r   r   r   r   <module>   s   >