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편집 파일: functools.cpython-38.opt-1.pyc
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See: http://en.wikipedia.org/wiki/Cache_replacement_policies#Least_recently_used_(LRU) r r� Nz=Expected first argument to be an integer, a callable, or Nonec s t | � �t�}t|| �S r@ )�_lru_cache_wrapper� _CacheInfor )� user_functionr �r� r� r$ r% �decorating_function s z&lru_cache.<locals>.decorating_function)r� �intrd �boolr� r� r r] )r� r� r� r r� r$ r� r% r � s �c s� t � �t� d\��� �i �d � � d��j��j�t� � g ���d d g�d d �< � dkrh� �fdd�}nN� d kr���� � � ���fdd�}n*� �������� � � � � ���fdd�}��� � � � fdd �}��� � � �fd d �}||_||_|S ) N)r r� r� � r Fc s � d7 � �| |�}|S �Nr� r$ )ra r� r� )r� r� r$ r% r $ s z#_lru_cache_wrapper.<locals>.wrapperc sH �| |��}�|��}|�k r*�d7 �|S �d7 ��| |�}|� |< |S r� r$ )ra r� r� r� )�cache� cache_getr� �make_keyr� �sentinelr� r� r$ r% r - s c s> � | |��}� �z �|�}|d k r~|\}}}}||�< ||�< � � }| |�< � �< ||�< � |�< �d7 �|W 5 Q R � S � d7 � W 5 Q R X �| |�}� �� |�kr�n��r�� } || � < || �< | � � � � } � � } d � � < � �< �| = | �|< n6� � }|� ||g}| |�< � �< �|< �� � k�W 5 Q R X |S r� r$ ) ra r� r� �linkZ link_prevZ link_nextZ_keyr� ZlastZoldrootZoldkeyZ oldresult)�KEY�NEXT�PREV�RESULTr� r� � cache_len�fullr� �lockr� r� r� rK r� r� r$ r% r < sB c s, �� � ����� �W 5 Q R � S Q R X dS )zReport cache statisticsNr$ r$ )r� r� r� r� r� r� r$ r% � cache_infou s z&_lru_cache_wrapper.<locals>.cache_infoc s< ��. � � � ��ddg�dd�< d ��d�W 5 Q R X dS )z$Clear the cache and cache statisticsNr F)�clearr$ )r� r� r� r� r� rK r$ r% � cache_clearz s z'_lru_cache_wrapper.<locals>.cache_clear)rA r� r� �__len__r r� r� )r� r� r� r� r r� r� r$ )r� r� r� r� r� r� r� r� r� r� r� r� r� r� rK r� r� r� r% r� s* *9 r� )r� c C s� g }dd� | D �} | s|S | D ]2}|d }| D ] }||dd� kr.d} q q. qRq |dkrbt d��|�|� | D ]}|d |krp|d= qpqdS )z�Merges MROs in *sequences* to a single MRO using the C3 algorithm. 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