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Y n$0 ||u rR| j�|j d � | �|� d S r )r r r? r/ r' rZ r r r r^ � s z WeakInstanceDict.safe_discardc C s dS )Nr r r r r r �prune� s zWeakInstanceDict.prune)N)r9 r: r; rB rD rE r r r rM rS rQ rU r rX rV rW rN r\ r& r^ r_ r r r r r< X s$ r< c @ s� e Zd ZdZejr"dd� Zdd� Zdd� Zdd � Z d d � Z d%d d�Z dd� Z dd� Z dd� Zdd� Zdd� Zdd� Zdd � Zd d � Zd d � Zd!d"� Zd#d$� Zd S )&�StrongInstanceDicta& A 'strong-referencing' version of the identity map. .. deprecated 1.1:: The strong reference identity map is legacy. See the recipe at :ref:`session_referencing_behavior` for an event-based approach to maintaining strong identity references. c C s | j �� S r )r rW r r r r rW s z StrongInstanceDict.itervaluesc C s | j �� S r )r rV r r r r rV s z StrongInstanceDict.iteritemsc C s t | j�S r )rT r r r r r rU s zStrongInstanceDict.__iter__c C s | j | S r �r r+ r r r rB s z StrongInstanceDict.__getitem__c C s || j v S r ra r+ r r r rD s z StrongInstanceDict.__contains__Nc C s | j �||�S r )r rM r0 r r r rM s zStrongInstanceDict.getc C s | j �� S r )r rQ r r r r rQ s zStrongInstanceDict.valuesc C s | j �� S r )r rS r r r r rS s zStrongInstanceDict.itemsc C s dd� | � � D �S )Nc S s g | ]}t �|��qS r )r �instance_state)�.0rA r r r � <listcomp> � z1StrongInstanceDict.all_states.<locals>.<listcomp>)rQ r r r r rN s z StrongInstanceDict.all_statesc C s |j | v o t�| |j �|u S r )r r rb r r r r rE ! s �z!StrongInstanceDict.contains_statec C s^ |j | jv r<| j|j }t�|�}||ur6| �|� q@d S nd }|�� | j|j < | �|� |S r )r r r rb r' r> r% rF r r r r ' s zStrongInstanceDict.replacec C s` |j | v r>t�| j|j �|ur:t�dt�|�|j f ��dS |�� | j|j < | � |� dS d S rH ) r r rb r rI rJ rK rL r> r% r r r r r 6 s �� zStrongInstanceDict.addc C s |� � | j|< | j|_d S r )r> r r r# r r r r r E s z!StrongInstanceDict._add_unpresentc C sF z| j |j }W n ty" Y n 0 t�|�|u rB| j �|jd � d S r )r r r? r rb r/ )r r r> r r r r\ J s z StrongInstanceDict._fast_discardc C s | � |� d S r r] r r r r r& V s zStrongInstanceDict.discardc C sH |j | jv rD| j|j }t�|�}||u rD| j�|j d � | �|� d S r )r r r rb r/ r' )r r r> r[ r r r r^ Y s z StrongInstanceDict.safe_discardc C sX t | �}dd� | �� D �}t�� }|�| � | j�� | j�|� t|�| _|t | � S )z%prune unreferenced, non-dirty states.c S s g | ]}|j r|�� �qS r )r$ r> )rc �sr r r rd e re z,StrongInstanceDict.prune.<locals>.<listcomp>) r3 rN r �WeakValueDictionaryr r r" r) r$ )r Z ref_countZdirtyZkeepersr r r r_ a s zStrongInstanceDict.prune)N)r9 r: r; �__doc__r rX rW rV rU rB rD rM rQ rS rN rE r r r r\ r& r^ r_ r r r r r` � s& r` ) r � r r rK r rI �objectr r< r` r r r r �<module> s H
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