Your IP : 3.22.41.80
3
�uAc^ � @ sl d Z ddlZddlmZ ddgZG dd� de�ZG dd � d e�ZG d
d� deee��Z G d d� de
e �Z dS ) z[This module contains variants of certain base types which call registered
hooks on changes.� N)�with_metaclass�Hookable� HookableSetc @ s e Zd Zdd� Zedd� �ZdS )� HookableTypec
C s� d|kr�y |d }W nJ t k
r^ d }x0dd� |D �D ] }|rRtdt|� ��q8|}q8W Y nX x |d D ]}tj||�||< qjW tj| |||�S )N�_hookable_change_methodsZ_hookable_base_classc s s | ]}|t kr|V qd S )N)r )�.0�x� r � /usr/lib/python3.6/hookable.py� <genexpr>) s z'HookableType.__new__.<locals>.<genexpr>ztoo many base classes: %s)�KeyError� TypeError�strr � wrap_method�type�__new__)�cls�name�basesZdct�baseZbase_candidate�
methodnamer r r
r " s zHookableType.__new__c s t ||�� � fdd�}||_|S )Nc s � | f|�|�}| j � |S )N)�
_run_hooks)�self�p�kZretval)�funcr r
�
methodwrapper9 s z/HookableType.wrap_method.<locals>.methodwrapper)�getattr�__name__)r r r r r )r r
r 5 s
zHookableType.wrap_methodN)r �
__module__� __qualname__r � classmethodr r r r r
r s r c @ s6 e Zd Zd dd�Zdd� Zdd� Zdd � Zd
d � ZdS )
�
_HookEntryNc C s� t |tj�st�t |t�s t�xFt|�D ]:\}}y t|� W q( tk
r` td||f ��Y q(X q(W xF|j� D ]:\}}y t|� W qp tk
r� td||f ��Y qpX qpW t |t �s�t |�}|| _
|| _ || _ || _
d | _d S )Nz*Positional argument %d is not hashable: %rz'Keyword argument %r is not hashable: %r)�
isinstance� collections�Callable�AssertionErrorr � enumerate�hashr
�items�tuple�_HookEntry__hook�_HookEntry__args�_HookEntry__kwargs�_HookEntry__hookable�_HookEntry__hash)r �hook�args�kwargs�hookable�nr r r r r
�__init__D s.
z_HookEntry.__init__c C s$ | j |j ko"| j|jko"| j|jkS )N)r+ r, r- )r �objr r r
�__cmp__c s z_HookEntry.__cmp__c C s | j s| j� | _ | j S )N)r/ �
_compute_hash)r r r r
�__hash__i s
z_HookEntry.__hash__c C s> t | j�}t |�t | j�A }t |�t tt| jj� ���A }|S )N)r( r+ r, r* �sortedr- r) )r � hashvaluer r r
r8 n s
z_HookEntry._compute_hashc C s4 | j r | j| j f| j�| j� n| j| j| j� d S )N)r. r+ r, r- )r r r r
�runu s z_HookEntry.run)N)r r r r5 r7 r9 r8 r< r r r r
r" B s
r" c @ s� e Zd ZdZedd� �Zdd� Zdd� Zeee�Zdd � Z d
d � Z
ee e
�Z d d
� Z dd� Z
dd� Zdd� Zdd� Zdd� Zdd� ZdS )r z2An object which calls registered hooks on changes.c O s t | d�st� | _| jS )N�__real_hooks__)�hasattr�setr= )r r r r r r
� __hooks__� s
zHookable.__hooks__c C s t | d�sd| _| jS )N�__hooks_enabled__T)r> rA )r r r r
�_get_hooks_enabled� s
zHookable._get_hooks_enabledc C s
|| _ d S )N)rA )r Zenabledr r r
�_set_hooks_enabled� s zHookable._set_hooks_enabledc C s t | d�sd| _| jS )N�__hooks_frozen__F)r> rD )r r r r
�_get_hooks_frozen� s
zHookable._get_hooks_frozenc C sB || j krd S || _|r"t� | _n x| jD ] }|j� q*W | `d S )N)� hooks_frozenrD r? �__hooks_frozen_entries__r< )r Zfreeze� hookentryr r r
�_set_hooks_frozen� s
zHookable._set_hooks_frozenc C s
d| _ d S )NT)rF )r r r r
� freeze_hooks� s zHookable.freeze_hooksc C s
d| _ d S )NF)rF )r r r r
�
thaw_hooks� s zHookable.thaw_hooksc O s | j |d f|�|� d S )N)�_Hookable__add_hook)r r0 r1 r2 r r r
�add_hook� s zHookable.add_hookc O s | j || f|�|� d S )N)rL )r r0 r1 r2 r r r
�add_hook_hookable� s zHookable.add_hook_hookablec O s> t |tj�st�t |t�s t�t||||d�}| jj|� d S )N)r3 )r# r$ r% r& r r" r@ �add)r r0 Z _hookabler1 r2 rH r r r
Z
__add_hook� s zHookable.__add_hookc O s | j jt|||�� d S )N)r@ �remover" )r r0 r1 r2 r r r
� remove_hook� s zHookable.remove_hookc C s8 | j r4| js&x&| jD ] }|j� qW n| jj| j� d S )N)�
hooks_enabledrF r@ r< rG �update)r rH r r r
r � s
zHookable._run_hooksN)r r r �__doc__�propertyr@ rB rC rR rE rI rF rJ rK rM rN rL rQ r r r r r
r | s
c @ s e Zd ZdZdZd d � Zd
S )r z5A set object which calls registered hooks on changes.rO �clear�difference_update�discard�intersection_update�poprP �symmetric_difference_updaterS c C s t j| �}t � |_|S )N)r? �copyr= )r r6 r r r
r\ � s
zHookableSet.copyN) rO rV rW rX rY rZ rP r[ rS )r r r rT r r\ r r r r
r � s ) rT r$ Zsixr �__all__r r �objectr" r r? r r r r r
�<module> s ":G