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a ��b� � @ sR d dl mZmZmZmZmZmZ d dlmZm Z er@d dl m Z G dd� d�Z dS )� )� TYPE_CHECKING�Any�Dict�Optional�Tuple�Union)� RedisError� ResponseError)� ClusterNodec @ sp e Zd ZdZdZdd�dd�Zded dd�d d �Zeee e d f d �d d�Z eee e d f d �dd�Z dS )�CommandsParsera% Parses Redis commands to get command keys. COMMAND output is used to determine key locations. Commands that do not have a predefined key location are flagged with 'movablekeys', and these commands' keys are determined by the command 'COMMAND GETKEYS'. NOTE: Due to a bug in redis<7.0, this does not work properly for EVAL or EVALSHA when the `numkeys` arg is 0. - issue: https://github.com/redis/redis/issues/9493 - fix: https://github.com/redis/redis/pull/9733 So, don't use this with EVAL or EVALSHA. )�commands�nodeN)�returnc C s i | _ d S )N)r )�self� r �8/usr/lib/python3.9/site-packages/redis/asyncio/parser.py�__init__ s zCommandsParser.__init__r )r r c � s� |r || _ | j �d�I d H }|�� D ]`\}}d|d v rBd||< q$|d dkrd|d dkrdd||< q$|d dkr$|d dkr$d||< q$d d � |�� D �| _d S ) NZCOMMANDZ movablekeys�flags���� first_key_posr � last_key_pos� c S s i | ]\}}|� � |�qS r )�upper)�.0�cmd�commandr r r � <dictcomp>* � z-CommandsParser.initialize.<locals>.<dictcomp>)r �execute_command�itemsr )r r r r r r r r � initialize s zCommandsParser.initialize.)�argsr c � s t |�dk rd S z| j|d }W nt ty� |d �� t|dd � � }|d }|| jvr�| �� I d H || jvr�t|�� � d���| j| }Y n0 |dkr�|d fS |dkr�d S |dkr�| j|� I d H S |d }|dk r�t |�| }||d |d |d � S ) N� r r z( command doesn't exist in Redis commandsr r r Z step_count) �lenr �KeyError�split�listr r r �_get_moveable_keys)r r! r Zcmd_namer r r r �get_keys/ s0 � zCommandsParser.get_keysc � sr z | j jdg|�R � I d H }W nN tyl } z6|�� }d|v sFd|v rTW Y d }~d S |�W Y d }~n d }~0 0 |S )NzCOMMAND GETKEYSzInvalid argumentsz The command has no key arguments)r r r �__str__)r r! �keys�e�messager r r r' R s ��z!CommandsParser._get_moveable_keys)N) �__name__� __module__� __qualname__�__doc__� __slots__r r r r r �strr( r' r r r r r s #r N) �typingr r r r r r Zredis.exceptionsr r Zredis.asyncio.clusterr r r r r r �<module> s
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