a
    kxg                     @   s>   d dl mZ d dlmZ dgZG dd dZG dd dZdS )    ref)GenericAliasWeakSetc                   @   s$   e Zd Zdd Zdd Zdd ZdS )_IterationGuardc                 C   s   t || _d S N)r   weakcontainer)selfr    r
   !/usr/lib/python3.9/_weakrefset.py__init__   s    z_IterationGuard.__init__c                 C   s    |   }|d ur|j|  | S r   )r   
_iteratingadd)r	   wr
   r
   r   	__enter__   s    z_IterationGuard.__enter__c                 C   s0   |   }|d ur,|j}||  |s,|  d S r   )r   r   remove_commit_removals)r	   etbr   sr
   r
   r   __exit__   s    
z_IterationGuard.__exit__N)__name__
__module____qualname__r   r   r   r
   r
   r
   r   r      s   r   c                   @   s&  e Zd Zd@ddZdd Zdd Zdd	 Zd
d Zdd Zdd Z	dd Z
dd Zdd Zdd Zdd Zdd Zdd Zdd ZeZd d! Zd"d# Zd$d% ZeZd&d' Zd(d) Zd*d+ ZeZd,d- Zd.d/ ZeZd0d1 Zd2d3 Zd4d5 Z e Z!d6d7 Z"d8d9 Z#d:d; Z$e$Z%d<d= Z&d>d? Z'e(e)Z*dS )Ar   Nc                 C   sB   t  | _t| fdd}|| _g | _t  | _|d ur>| | d S )Nc                 S   s2   | }|d ur.|j r"|j|  n|j|  d S r   )r   _pending_removalsappenddatadiscard)itemZselfrefr	   r
   r
   r   _remove'   s
    z!WeakSet.__init__.<locals>._remove)setr   r   r    r   r   update)r	   r   r    r
   r
   r   r   %   s    zWeakSet.__init__c                 C   s$   | j }| jj}|r ||  qd S r   )r   r   r   pop)r	   lr   r
   r
   r   r   5   s    zWeakSet._commit_removalsc                 c   sL   t | 0 | jD ]}| }|d ur|V  qW d    n1 s>0    Y  d S r   )r   r   r	   Zitemrefr   r
   r
   r   __iter__;   s
    

zWeakSet.__iter__c                 C   s   t | jt | j S r   )lenr   r   r	   r
   r
   r   __len__D   s    zWeakSet.__len__c                 C   s,   zt |}W n ty    Y dS 0 || jv S )NF)r   	TypeErrorr   )r	   r   Zwrr
   r
   r   __contains__G   s
    zWeakSet.__contains__c                 C   s   | j t| ft| dd fS )N__dict__)	__class__listgetattrr(   r
   r
   r   
__reduce__N   s    
zWeakSet.__reduce__c                 C   s&   | j r|   | jt|| j d S r   )r   r   r   r   r   r    r	   r   r
   r
   r   r   R   s    zWeakSet.addc                 C   s   | j r|   | j  d S r   )r   r   r   clearr(   r
   r
   r   r2   W   s    zWeakSet.clearc                 C   s
   |  | S r   r-   r(   r
   r
   r   copy\   s    zWeakSet.copyc                 C   sR   | j r|   z| j }W n ty8   tdd Y n0 | }|d ur|S qd S )Nzpop from empty WeakSet)r   r   r   r#   KeyErrorr%   r
   r
   r   r#   _   s    zWeakSet.popc                 C   s"   | j r|   | jt| d S r   )r   r   r   r   r   r1   r
   r
   r   r   k   s    zWeakSet.removec                 C   s"   | j r|   | jt| d S r   )r   r   r   r   r   r1   r
   r
   r   r   p   s    zWeakSet.discardc                 C   s&   | j r|   |D ]}| | qd S r   )r   r   r   )r	   otherZelementr
   r
   r   r"   u   s    zWeakSet.updatec                 C   s   |  | | S r   )r"   r	   r6   r
   r
   r   __ior__{   s    
zWeakSet.__ior__c                 C   s   |   }|| |S r   )r4   difference_updater	   r6   Znewsetr
   r
   r   
difference   s    
zWeakSet.differencec                 C   s   |  | d S r   )__isub__r7   r
   r
   r   r9      s    zWeakSet.difference_updatec                 C   s<   | j r|   | |u r"| j  n| jdd |D  | S )Nc                 s   s   | ]}t |V  qd S r   r   .0r   r
   r
   r   	<genexpr>       z#WeakSet.__isub__.<locals>.<genexpr>)r   r   r   r2   r9   r7   r
   r
   r   r<      s    zWeakSet.__isub__c                    s      fdd|D S )Nc                 3   s   | ]}| v r|V  qd S r   r
   r=   r(   r
   r   r?      r@   z'WeakSet.intersection.<locals>.<genexpr>r3   r7   r
   r(   r   intersection   s    zWeakSet.intersectionc                 C   s   |  | d S r   )__iand__r7   r
   r
   r   intersection_update   s    zWeakSet.intersection_updatec                 C   s(   | j r|   | jdd |D  | S )Nc                 s   s   | ]}t |V  qd S r   r   r=   r
   r
   r   r?      r@   z#WeakSet.__iand__.<locals>.<genexpr>)r   r   r   rC   r7   r
   r
   r   rB      s    zWeakSet.__iand__c                 C   s   | j dd |D S )Nc                 s   s   | ]}t |V  qd S r   r   r=   r
   r
   r   r?      r@   z#WeakSet.issubset.<locals>.<genexpr>)r   issubsetr7   r
   r
   r   rD      s    zWeakSet.issubsetc                 C   s   | j ttt|k S r   r   r!   mapr   r7   r
   r
   r   __lt__   s    zWeakSet.__lt__c                 C   s   | j dd |D S )Nc                 s   s   | ]}t |V  qd S r   r   r=   r
   r
   r   r?      r@   z%WeakSet.issuperset.<locals>.<genexpr>)r   
issupersetr7   r
   r
   r   rH      s    zWeakSet.issupersetc                 C   s   | j ttt|kS r   rE   r7   r
   r
   r   __gt__   s    zWeakSet.__gt__c                 C   s$   t || jstS | jttt|kS r   )
isinstancer-   NotImplementedr   r!   rF   r   r7   r
   r
   r   __eq__   s    zWeakSet.__eq__c                 C   s   |   }|| |S r   )r4   symmetric_difference_updater:   r
   r
   r   symmetric_difference   s    
zWeakSet.symmetric_differencec                 C   s   |  | d S r   )__ixor__r7   r
   r
   r   rM      s    z#WeakSet.symmetric_difference_updatec                    s@    j r    |u r" j  n j fdd|D   S )Nc                 3   s   | ]}t | jV  qd S r   )r   r    r=   r(   r
   r   r?      r@   z#WeakSet.__ixor__.<locals>.<genexpr>)r   r   r   r2   rM   r7   r
   r(   r   rO      s    zWeakSet.__ixor__c                 C   s   |  dd | |fD S )Nc                 s   s   | ]}|D ]
}|V  q
qd S r   r
   )r>   r   r   r
   r
   r   r?      r@   z WeakSet.union.<locals>.<genexpr>r3   r7   r
   r
   r   union   s    zWeakSet.unionc                 C   s   t | |dkS )Nr   )r'   rA   r7   r
   r
   r   
isdisjoint   s    zWeakSet.isdisjointc                 C   s
   t | jS r   )reprr   r(   r
   r
   r   __repr__   s    zWeakSet.__repr__)N)+r   r   r   r   r   r&   r)   r+   r0   r   r2   r4   r#   r   r   r"   r8   r;   __sub__r9   r<   rA   __and__rC   rB   rD   __le__rG   rH   __ge__rI   rL   rN   __xor__rM   rO   rP   __or__rQ   rS   classmethodr   __class_getitem__r
   r
   r
   r   r   $   sL   
			N)_weakrefr   typesr   __all__r   r   r
   r
   r
   r   <module>   s   