U
    "FZh+U                     @   s0  d Z dZdZddlZddlZddlZddlZddlZddlZddl	m
Z
 ddlmZ G dd	 d	ZG d
d dejjZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZeddddd gZe
jdd!fd"d#Ze
jdfd$d%ZdS )&z0Extensible memoizing collections and decorators.)
Cache	FIFOCacheLFUCacheLRUCacheMRUCacheRRCache	TLRUCacheTTLCachecachedcachedmethodz5.5.2    N   )keys)_cached_wrapperc                   @   s(   e Zd ZdZdd Zdd Zdd ZdS )	_DefaultSize c                 C   s   dS Nr   r   self_r   r   Z/home/aprabhat/apps/x.techxrdev.in/venv/lib/python3.8/site-packages/cachetools/__init__.py__getitem__    s    z_DefaultSize.__getitem__c                 C   s   |dkst d S r   )AssertionError)r   r   valuer   r   r   __setitem__#   s    z_DefaultSize.__setitem__c                 C   s   dS r   r   r   r   r   r   pop&   s    z_DefaultSize.popN)__name__
__module____qualname__	__slots__r   r   r   r   r   r   r   r      s   r   c                   @   s   e Zd ZdZe Ze Zd!ddZdd Z	dd Z
d	d
 Zdd Zdd Zdd Zdd Zdd Zd"ddZefddZd#ddZedd Zedd Zedd  ZdS )$r   z?Mutable mapping to serve as a simple cache or cache base class.Nc                 C   s6   |r
|| _ | j tj k	rt | _t | _d| _|| _d S Nr   )	getsizeofr   dict_Cache__size_Cache__data_Cache__currsize_Cache__maxsizer   maxsizer    r   r   r   __init__1   s    zCache.__init__c                 C   s   d| j jt| j| j| jf S )Nz%s(%s, maxsize=%r, currsize=%r))	__class__r   reprr#   r%   r$   r   r   r   r   __repr__:   s    zCache.__repr__c                 C   s0   z| j | W S  tk
r*   | | Y S X d S N)r#   KeyError__missing__r   keyr   r   r   r   B   s    zCache.__getitem__c                 C   s   | j }| |}||kr td|| jks8| j| |k rP| j| |krP|   q8|| jkrj|| j|  }n|}|| j|< || j|< |  j|7  _d S )Nzvalue too large)r%   r    
ValueErrorr#   r"   r$   popitem)r   r1   r   r'   sizeZdiffsizer   r   r   r   H   s    




zCache.__setitem__c                 C   s&   | j |}| j|= |  j|8  _d S r-   )r"   r   r#   r$   )r   r1   r4   r   r   r   __delitem__X   s    zCache.__delitem__c                 C   s
   || j kS r-   )r#   r0   r   r   r   __contains__]   s    zCache.__contains__c                 C   s   t |d S r-   )r.   r0   r   r   r   r/   `   s    zCache.__missing__c                 C   s
   t | jS r-   )iterr#   r+   r   r   r   __iter__c   s    zCache.__iter__c                 C   s
   t | jS r-   )lenr#   r+   r   r   r   __len__f   s    zCache.__len__c                 C   s   || kr| | S |S d S r-   r   )r   r1   defaultr   r   r   geti   s    z	Cache.getc                 C   s4   || kr| | }| |= n|| j kr,t|n|}|S r-   )_Cache__markerr.   r   r1   r;   r   r   r   r   r   o   s    

z	Cache.popc                 C   s"   || kr| | }n| | |< }|S r-   r   r>   r   r   r   
setdefaulty   s    
zCache.setdefaultc                 C   s   | j S )zThe maximum size of the cache.)r%   r+   r   r   r   r'      s    zCache.maxsizec                 C   s   | j S )zThe current size of the cache.)r$   r+   r   r   r   currsize   s    zCache.currsizec                 C   s   dS )z+Return the size of a cache element's value.r   r   )r   r   r   r   r       s    zCache.getsizeof)N)N)N)r   r   r   __doc__objectr=   r   r"   r(   r,   r   r   r5   r6   r/   r8   r:   r<   r   r?   propertyr'   r@   staticmethodr    r   r   r   r   r   *   s*   
	




r   c                   @   s>   e Zd ZdZdddZejfddZejfddZd	d
 ZdS )r   z/First In First Out (FIFO) cache implementation.Nc                 C   s   t | || t | _d S r-   )r   r(   collectionsOrderedDict_FIFOCache__orderr&   r   r   r   r(      s    zFIFOCache.__init__c                 C   s@   || || z| j | W n tk
r:   d | j |< Y nX d S r-   )rG   move_to_endr.   r   r1   r   cache_setitemr   r   r   r      s
    zFIFOCache.__setitem__c                 C   s   || | | j |= d S r-   )rG   r   r1   cache_delitemr   r   r   r5      s    
zFIFOCache.__delitem__c                 C   sN   zt t| j}W n( tk
r:   tdt| j dY nX || |fS dS )z9Remove and return the `(key, value)` pair first inserted.%s is emptyN)nextr7   rG   StopIterationr.   typer   r   r0   r   r   r   r3      s
    zFIFOCache.popitem)N)	r   r   r   rA   r(   r   r   r5   r3   r   r   r   r   r      s
   
r   c                   @   sL   e Zd ZdZdddZejfddZejfddZejfd	d
Zdd Z	dS )r   z1Least Frequently Used (LFU) cache implementation.Nc                 C   s   t | || t | _d S r-   )r   r(   rE   Counter_LFUCache__counterr&   r   r   r   r(      s    zLFUCache.__init__c                 C   s(   || |}|| kr$| j |  d8  < |S r   rR   r   r1   cache_getitemr   r   r   r   r      s    
zLFUCache.__getitem__c                 C   s"   || || | j |  d8  < d S r   rS   rI   r   r   r   r      s    zLFUCache.__setitem__c                 C   s   || | | j |= d S r-   rS   rK   r   r   r   r5      s    
zLFUCache.__delitem__c                 C   sR   z| j d\\}}W n( tk
r>   tdt| j dY nX || |fS dS )z@Remove and return the `(key, value)` pair least frequently used.r   rM   N)rR   most_commonr2   r.   rP   r   r   )r   r1   r   r   r   r   r3      s
    zLFUCache.popitem)N)
r   r   r   rA   r(   r   r   r   r5   r3   r   r   r   r   r      s   
r   c                   @   sT   e Zd ZdZdddZejfddZejfddZejfd	d
Zdd Z	dd Z
dS )r   z/Least Recently Used (LRU) cache implementation.Nc                 C   s   t | || t | _d S r-   )r   r(   rE   rF   _LRUCache__orderr&   r   r   r   r(      s    zLRUCache.__init__c                 C   s    || |}|| kr|  | |S r-   _LRUCache__updaterT   r   r   r   r      s    

zLRUCache.__getitem__c                 C   s   || || |  | d S r-   rX   rI   r   r   r   r      s    zLRUCache.__setitem__c                 C   s   || | | j |= d S r-   )rW   rK   r   r   r   r5      s    
zLRUCache.__delitem__c                 C   sN   zt t| j}W n( tk
r:   tdt| j dY nX || |fS dS )z>Remove and return the `(key, value)` pair least recently used.rM   N)rN   r7   rW   rO   r.   rP   r   r   r0   r   r   r   r3      s
    zLRUCache.popitemc                 C   s4   z| j | W n tk
r.   d | j |< Y nX d S r-   )rW   rH   r.   r0   r   r   r   __update   s    zLRUCache.__update)N)r   r   r   rA   r(   r   r   r   r5   r3   rY   r   r   r   r   r      s   
	r   c                   @   sT   e Zd ZdZdddZejfddZejfddZejfd	d
Zdd Z	dd Z
dS )r   z.Most Recently Used (MRU) cache implementation.Nc                 C   s6   ddl m} |dtdd t| || t | _d S )Nr   )warnzMRUCache is deprecated   )
stacklevel)warningsr[   DeprecationWarningr   r(   rE   rF   _MRUCache__order)r   r'   r    r[   r   r   r   r(      s    zMRUCache.__init__c                 C   s    || |}|| kr|  | |S r-   _MRUCache__updaterT   r   r   r   r      s    

zMRUCache.__getitem__c                 C   s   || || |  | d S r-   ra   rI   r   r   r   r     s    zMRUCache.__setitem__c                 C   s   || | | j |= d S r-   )r`   rK   r   r   r   r5     s    
zMRUCache.__delitem__c                 C   sN   zt t| j}W n( tk
r:   tdt| j dY nX || |fS dS )z=Remove and return the `(key, value)` pair most recently used.rM   N)rN   r7   r`   rO   r.   rP   r   r   r0   r   r   r   r3   	  s
    zMRUCache.popitemc                 C   s8   z| j j|dd W n tk
r2   d | j |< Y nX d S )NF)last)r`   rH   r.   r0   r   r   r   rZ     s    zMRUCache.__update)N)r   r   r   rA   r(   r   r   r   r5   r3   rb   r   r   r   r   r      s   
	r   c                   @   s4   e Zd ZdZejdfddZedd Zdd ZdS )	r   z-Random Replacement (RR) cache implementation.Nc                 C   s   t | || || _d S r-   )r   r(   _RRCache__choice)r   r'   choicer    r   r   r   r(     s    zRRCache.__init__c                 C   s   | j S )z(The `choice` function used by the cache.)rd   r+   r   r   r   re      s    zRRCache.choicec                 C   sN   z|  t| }W n( tk
r:   tdt| j dY nX || |fS dS )z/Remove and return a random `(key, value)` pair.rM   N)rd   list
IndexErrorr.   rP   r   r   r0   r   r   r   r3   %  s
    zRRCache.popitem)	r   r   r   rA   randomre   r(   rC   r3   r   r   r   r   r     s
   
r   c                       s   e Zd ZdZG dd dZejdfddZej	fddZ	ej
fd	d
Z
e fddZedd Zdd Zdd Zdd Zdd Z  ZS )_TimedCachez0Base class for time aware cache implementations.c                   @   s<   e Zd Zdd Zdd Zdd Zdd Zd	d
 Zdd ZdS )z_TimedCache._Timerc                 C   s   || _ d| _d S r   )_Timer__timer_Timer__nesting)r   timerr   r   r   r(   3  s    z_TimedCache._Timer.__init__c                 C   s   | j dkr|  S | jS d S r   rk   rj   Z_Timer__timer+   r   r   r   __call__7  s    
z_TimedCache._Timer.__call__c                 C   s2   | j dkr|   | _}n| j}|  j d7  _ |S )Nr   r   rm   r   timer   r   r   	__enter__=  s
    
z_TimedCache._Timer.__enter__c                 G   s   |  j d8  _ d S r   )rk   )r   excr   r   r   __exit__E  s    z_TimedCache._Timer.__exit__c                 C   s   t j| jffS r-   )ri   _Timerrj   r+   r   r   r   
__reduce__H  s    z_TimedCache._Timer.__reduce__c                 C   s   t | j|S r-   )getattrrj   )r   namer   r   r   __getattr__K  s    z_TimedCache._Timer.__getattr__N)	r   r   r   r(   rn   rq   rs   ru   rx   r   r   r   r   rt   2  s   rt   Nc                 C   s   t | || t|| _d S r-   )r   r(   ri   rt   _TimedCache__timer)r   r'   rl   r    r   r   r   r(   N  s    z_TimedCache.__init__c              
   C   s0   | j  }| | || W  5 Q R  S Q R X d S r-   ry   expire)r   Z
cache_reprrp   r   r   r   r,   R  s    
z_TimedCache.__repr__c              
   C   s0   | j  }| | || W  5 Q R  S Q R X d S r-   rz   )r   Z	cache_lenrp   r   r   r   r:   W  s    
z_TimedCache.__len__c              
      s0   | j  }| | t jW  5 Q R  S Q R X d S r-   )ry   r{   superr@   ro   r)   r   r   r@   \  s    
z_TimedCache.currsizec                 C   s   | j S )z%The timer function used by the cache.)ry   r+   r   r   r   rl   b  s    z_TimedCache.timerc              	   C   s*   | j }| | t|  W 5 Q R X d S r-   )ry   r{   r   clearro   r   r   r   r~   g  s    
z_TimedCache.clearc              
   O   s0   | j   tj| f||W  5 Q R  S Q R X d S r-   )ry   r   r<   r   argskwargsr   r   r   r<   l  s    z_TimedCache.getc              
   O   s0   | j   tj| f||W  5 Q R  S Q R X d S r-   )ry   r   r   r   r   r   r   r   p  s    z_TimedCache.popc              
   O   s0   | j   tj| f||W  5 Q R  S Q R X d S r-   )ry   r   r?   r   r   r   r   r?   t  s    z_TimedCache.setdefault)r   r   r   rA   rt   rp   	monotonicr(   r   r,   r:   rC   r@   rl   r~   r<   r   r?   __classcell__r   r   r}   r   ri   /  s   
ri   c                   @   s   e Zd ZdZG dd dZejdfddZdd Ze	j
fd	d
Z
e	jfddZe	jfddZdd Zdd Zedd ZdddZdd Zdd ZdS )r   z@LRU Cache implementation with per-item time-to-live (TTL) value.c                   @   s*   e Zd ZdZd	ddZdd Zdd ZdS )
zTTLCache._Link)r1   expiresrN   prevNc                 C   s   || _ || _d S r-   )r1   r   r   r1   r   r   r   r   r(     s    zTTLCache._Link.__init__c                 C   s   t j| j| jffS r-   )r   _Linkr1   r   r+   r   r   r   ru     s    zTTLCache._Link.__reduce__c                 C   s   | j }| j}||_ ||_d S r-   )rN   r   )r   rN   r   r   r   r   unlink  s    zTTLCache._Link.unlink)NN)r   r   r   r   r(   ru   r   r   r   r   r   r   |  s   
r   Nc                 C   s>   t | ||| t  | _}| |_|_t | _	|| _
d S r-   )ri   r(   r   r   _TTLCache__rootr   rN   rE   rF   _TTLCache__links_TTLCache__ttl)r   r'   ttlrl   r    rootr   r   r   r(     s
    
zTTLCache.__init__c                 C   s8   z| j | }W n tk
r$   Y dS X |  |jk S d S NF)r   r.   rl   r   )r   r1   linkr   r   r   r6     s
    zTTLCache.__contains__c                 C   sT   z|  |}W n tk
r&   d}Y nX |  |jk  }|rF| |S || |S d S r   )_TTLCache__getlinkr.   rl   r   r/   )r   r1   rU   r   expiredr   r   r   r     s    

zTTLCache.__getitem__c              	   C   s   | j }| | || || W 5 Q R X z| |}W n( tk
r^   t| | j|< }Y n
X |  || j |_	| j
 |_}|j |_}| |_|_d S r-   )rl   r{   r   r.   r   r   r   r   r   r   r   rN   r   )r   r1   r   rJ   rp   r   r   r   r   r   r   r     s    
zTTLCache.__setitem__c                 C   s8   || | | j |}|  |  |jk s4t|d S r-   )r   r   r   rl   r   r.   )r   r1   rL   r   r   r   r   r5     s
    
zTTLCache.__delitem__c              	   c   sD   | j }|j}||k	r@| j}||jk r.|jV  W 5 Q R X |j}qd S r-   )r   rN   rl   r   r1   )r   r   currrp   r   r   r   r8     s    
zTTLCache.__iter__c                 C   sj   | j | | j}| |_|_t| j dd dD ]"}||_|j |_}| |_|_q4| | 	  d S )Nc                 S   s   | j S r-   r   )objr   r   r   <lambda>      z'TTLCache.__setstate__.<locals>.<lambda>)r1   )
__dict__updater   r   rN   sortedr   valuesr{   rl   )r   stater   r   r   r   r   r   __setstate__  s    zTTLCache.__setstate__c                 C   s   | j S )z,The time-to-live value of the cache's items.)r   r+   r   r   r   r     s    zTTLCache.ttlc           	      C   s   |dkr|   }| j}|j}| j}g }tj}tj}||k	r||jk s||j	|| |j	f || |j	 ||j	= |j}|
  |}q2|S )qRemove expired items from the cache and return an iterable of the
        expired `(key, value)` pairs.

        N)rl   r   rN   r   r   r5   r   r   appendr1   r   )	r   rp   r   r   linksr   rL   rU   rN   r   r   r   r{     s     zTTLCache.expirec              
   C   sv   | j f}| | ztt| j}W n( tk
rL   tdt| j dY nX || 	|fW  5 Q R  S W 5 Q R X dS zmRemove and return the `(key, value)` pair least recently used that
        has not already expired.

        rM   N)
rl   r{   rN   r7   r   rO   r.   rP   r   r   r   rp   r1   r   r   r   r3     s    
zTTLCache.popitemc                 C   s   | j | }| j | |S r-   )r   rH   r   r1   r   r   r   r   Z	__getlink  s    
zTTLCache.__getlink)N)r   r   r   rA   r   rp   r   r(   r6   r   r   r   r5   r8   r   rC   r   r{   r3   r   r   r   r   r   r   y  s   



r   c                   @   s   e Zd ZdZejG dd dZejdfddZ	dd Z
ejfd	d
ZejfddZejfddZdd Zedd ZdddZdd Zdd ZdS )r   z;Time aware Least Recently Used (TLRU) cache implementation.c                   @   s"   e Zd ZdZdddZdd ZdS )zTLRUCache._Itemr1   r   removedNc                 C   s   || _ || _d| _d S r   r   r   r   r   r   r(     s    zTLRUCache._Item.__init__c                 C   s   | j |j k S r-   r   )r   otherr   r   r   __lt__  s    zTLRUCache._Item.__lt__)NN)r   r   r   r   r(   r   r   r   r   r   _Item  s   
r   Nc                 C   s*   t | ||| t | _g | _|| _d S r-   )ri   r(   rE   rF   _TLRUCache__items_TLRUCache__order_TLRUCache__ttu)r   r'   tturl   r    r   r   r   r(     s    
zTLRUCache.__init__c                 C   s8   z| j | }W n tk
r$   Y dS X |  |jk S d S r   )r   r.   rl   r   )r   r1   itemr   r   r   r6     s
    zTLRUCache.__contains__c                 C   sT   z|  |}W n tk
r&   d}Y nX |  |jk  }|rF| |S || |S d S r   )_TLRUCache__getitemr.   rl   r   r/   )r   r1   rU   r   r   r   r   r   r     s    

zTLRUCache.__getitem__c              	   C   s   | j @}| |||}||k s,W 5 Q R  d S | | || || W 5 Q R X zd| |_W n tk
rp   Y nX t|| | j|< }t	
| j| d S NT)rl   r   r{   r   r   r.   r   r   r   heapqheappushr   )r   r1   r   rJ   rp   r   r   r   r   r   r   )  s    
zTLRUCache.__setitem__c              	   C   sD   | j }|| | W 5 Q R X | j|}d|_||jk s@t|d S r   )rl   r   r   r   r   r.   )r   r1   rL   rp   r   r   r   r   r5   9  s    
zTLRUCache.__delitem__c              
   c   s:   | j D ].}| j}||jk r*|js*|jV  W 5 Q R X qd S r-   )r   rl   r   r   r1   )r   r   rp   r   r   r   r8   B  s    
zTLRUCache.__iter__c                 C   s   | j S )z1The local time-to-use function used by the cache.)r   r+   r   r   r   r   I  s    zTLRUCache.ttuc                 C   s   |dkr|   }| j}| j}t|t|d krNdd |D  | _}t| g }tj}tj}|r|d j	sz||d j
k st|}|j	s^||j|| |jf || |j ||j= q^|S )r   Nr\   c                 S   s   g | ]}|j s|qS r   )r   ).0r   r   r   r   
<listcomp>Y  s      z$TLRUCache.expire.<locals>.<listcomp>r   )rl   r   r   r9   r   heapifyr   r5   r   r   r   heappopr   r1   )r   rp   itemsorderr   rL   rU   r   r   r   r   r{   N  s"    


zTLRUCache.expirec              
   C   st   | j d}| | ztt| j}W n& tk
rJ   td| jj dY nX || 	|fW  5 Q R  S W 5 Q R X dS r   )
rl   r{   rN   r7   r   rO   r.   r)   r   r   r   r   r   r   r3   f  s    
zTLRUCache.popitemc                 C   s   | j | }| j | |S r-   )r   rH   r   r   r   r   Z	__getitemt  s    
zTLRUCache.__getitem)N)r   r   r   rA   	functoolstotal_orderingr   rp   r   r(   r6   r   r   r   r5   r8   rC   r   r{   r3   r   r   r   r   r   r      s   	

r   	CacheInfohitsmissesr'   r@   Fc                    s    fdd}|S )z_Decorator to wrap a function with a memoizing callable that saves
    results in a cache.

    c                    s   rRt  tr fdd}n$t  tjjr8 fdd}ndd }t|  |}nt|  d } |_|_|_t	
|| S )Nc                    s   t | | j jS r-   )
_CacheInfor'   r@   r   r   cacher   r   	make_info  s    z,cached.<locals>.decorator.<locals>.make_infoc                    s   t | |d t S r-   )r   r9   r   r   r   r   r     s    c                 S   s   t | |ddS r   )r   r   r   r   r   r     s    )
isinstancer   rE   abcMappingr   r   	cache_key
cache_lockr   update_wrapper)funcr   wrapperr   infor1   lockr   r   	decorator  s    
zcached.<locals>.decoratorr   )r   r1   r   r   r   r   r   r   r	     s    r	   c                    s    fdd}|S )zoDecorator to wrap a class or instance method with a memoizing
    callable that saves results in a cache.

    c                    sj   d kr& fdd}fdd}n  fdd}fdd}|_ |_|_||_t| S )Nc                    s    | }|d kr | f||S | f||}z
|| W S  t k
rN   Y nX | f||}z|||< W n tk
r   Y nX |S r-   )r.   r2   r   r   r   ckv)r   r1   methodr   r   r     s    
z0cachedmethod.<locals>.decorator.<locals>.wrapperc                    s    | }|d k	r|   d S r-   r~   r   r   r   r   r   r~     s    z.cachedmethod.<locals>.decorator.<locals>.clearc              
      s    | }|d kr | f||S | f||}z*|  || W  5 Q R  W S Q R X W n t k
rn   Y nX | f||}z.|  |||W  5 Q R  W S Q R X W n tk
r   | Y S X d S r-   )r.   r?   r2   r   )r   r1   r   r   r   r   r     s    
 
$c              	      s0    | }|d k	r,|  |   W 5 Q R X d S r-   r   r   )r   r   r   r   r~     s    
)r   r   r   cache_clearr   r   )r   r   r~   r   r1   r   )r   r   r     s    zcachedmethod.<locals>.decoratorr   )r   r1   r   r   r   r   r   r
     s    9r
   )rA   __all____version__rE   collections.abcr   r   rh   rp    r   Z_decoratorsr   r   r   MutableMappingr   r   r   r   r   r   ri   r   r   
namedtupler   Zhashkeyr	   Z	methodkeyr
   r   r   r   r   <module>   s6   f%)J z 
$