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fix_raise.cpython-36.pyc
3 \n � @ sZ d Z ddlmZ ddlmZ ddlmZ ddlmZmZm Z m Z m Z G dd� dej �Z dS ) a[ Fixer for 'raise E, V, T' raise -> raise raise E -> raise E raise E, V -> raise E(V) raise E, V, T -> raise E(V).with_traceback(T) raise E, None, T -> raise E.with_traceback(T) raise (((E, E'), E''), E'''), V -> raise E(V) raise "foo", V, T -> warns about string exceptions CAVEATS: 1) "raise E, V" will be incorrectly translated if V is an exception instance. The correct Python 3 idiom is raise E from V but since we can't detect instance-hood by syntax alone and since any client code would have to be changed as well, we don't automate this. � )�pytree)�token)� fixer_base)�Name�Call�Attr�ArgList�is_tuplec @ s e Zd ZdZdZdd� ZdS )�FixRaiseTzB raise_stmt< 'raise' exc=any [',' val=any [',' tb=any]] > c C sl | j }|d j� }|jtjkr2d}| j||� d S t|�rbx t|�rZ|jd jd j� }q<W d|_d|kr�t j |j t d�|g�}|j|_|S |d j� }t|�r�dd � |jdd� D �}n d |_|g}d |k�rF|d j� } d | _|} |jtj kp�|jd k�rt||�} t| t d ��t| g�g } t j |jt d�g| �}|j|_|S t j |j t d�t||�g|jd�S d S )N�excz+Python 3 does not support string exceptions� � � �val�raisec S s g | ] }|j � �qS � )�clone)�.0�cr r �//usr/lib64/python3.6/lib2to3/fixes/fix_raise.py� <listcomp>D s z&FixRaise.transform.<locals>.<listcomp>� �tb�None�with_traceback)�prefix���)�symsr �typer �STRINGZcannot_convertr Zchildrenr r ZNodeZ raise_stmtr �NAME�valuer r r Z simple_stmt) �selfZnodeZresultsr r �msg�newr �argsr �eZwith_tbr r r � transform& s@ zFixRaise.transformN)�__name__� __module__� __qualname__Z BM_compatibleZPATTERNr' r r r r r s r N)�__doc__r r Zpgen2r r Z fixer_utilr r r r r ZBaseFixr r r r r �<module> s
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