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Edit File: _pclass.cpython-310.pyc
o ���a�% � @ s� d dl mZmZmZmZ d dlmZmZmZm Z m Z m Z d dl m Z dd� ZG dd� de�Ze� Zdd � ZG d d � d eed �ZG d d� de�ZdS )� )�InvariantException� CheckedType�_restore_pickle�store_invariants)� set_fields� check_type� is_field_ignore_extra_complaint�PFIELD_NO_INITIAL� serialize�check_global_invariants�� transformc C s t | �dko | d tkS )N� r )�lenr )�bases� r �4/usr/lib/python3/dist-packages/pyrsistent/_pclass.py� _is_pclass s r c s e Zd Z� fdd�Z� ZS )� PClassMetac sh t ||dd� t||dd� dtdd� |d D �� |d< t|�r)|d d 7 < tt| ��| |||�S ) N�_pclass_fields)�name�_pclass_invariants� __invariant__)�_pclass_frozenc s s � | ]}|V qd S �Nr ��.0�keyr r r � <genexpr> s � z%PClassMeta.__new__.<locals>.<genexpr>� __slots__)� __weakref__)r r �tupler �superr �__new__)�mcsr r �dct�� __class__r r r# s zPClassMeta.__new__)�__name__� __module__� __qualname__r# � __classcell__r r r& r r s r c C s> t | |||� |�|�\}}|s|�|� d S t|||� d S r )r � invariant�append�setattr)�cls�fieldr �value�result�invariant_errors�is_ok� error_coder r r �_check_and_set_attr s r6 c s� e Zd ZdZ� fdd�Zdd� Zed"dd ��Zd#d d �Zd d � Z dd� Z dd� Z dd� Z � fdd�Z dd� Zdd� Zdd� Zd d � Zd d � Zd d!� Z� ZS )$�PClassa� A PClass is a python class with a fixed set of specified fields. PClasses are declared as python classes inheriting from PClass. It is defined the same way that PRecords are and behaves like a PRecord in all aspects except that it is not a PMap and hence not a collection but rather a plain Python object. More documentation and examples of PClass usage is available at https://github.com/tobgu/pyrsistent c sL t t| ��| �}|�dd �}|�dd �}g }g }| j�� D ]a\}}||v rV|d u s-||v rEtt||�r=|j|| |d�} n |�|| �} n|| } t| ||| ||� ||= q |j t urqt |j �rd|� � n|j } t| ||| ||� q |j r~|� d�| j|�� q |s�|r�tt|�t|�d��|r�td�d�|�| j���t|| j� d|_|S ) N�_factory_fields� ignore_extra)r9 z{0}.{1}zField invariant failedz0'{0}' are not among the specified fields for {1}�, T)r" r7 r# �popr �itemsr �factoryr6 �initialr �callable� mandatoryr- �formatr( r r! �AttributeError�joinr r r ) r/ �kwargsr2 �factory_fieldsr9 �missing_fieldsr3 r r0 r1 r> r& r r r# . s> �� � zPClass.__new__c O s` |r |d ||d < t |�}| jD ]}||vr%t| |t�}|tur%|||< q| jdd|i|��S )a Set a field in the instance. Returns a new instance with the updated value. The original instance remains unmodified. Accepts key-value pairs or single string representing the field name and a value. >>> from pyrsistent import PClass, field >>> class AClass(PClass): ... x = field() ... >>> a = AClass(x=1) >>> a2 = a.set(x=2) >>> a3 = a.set('x', 3) >>> a AClass(x=1) >>> a2 AClass(x=2) >>> a3 AClass(x=3) r r r8 Nr )�setr �getattr�_MISSING_VALUEr' )�self�argsrD rE r r1 r r r rG R s �z PClass.setNFc s: t � | �r� S |r� fdd�| jD �� | d||d�� ��S )a: Factory method. Will create a new PClass of the current type and assign the values specified in kwargs. :param ignore_extra: A boolean which when set to True will ignore any keys which appear in kwargs that are not in the set of fields on the PClass. c s i | ] }|� v r|� | �qS r r )r �k�rD r r � <dictcomp> s z!PClass.create.<locals>.<dictcomp>)r8 r9 Nr )� isinstancer )r/ rD r8 r9 r rM r �creater s z PClass.createc C s@ i }| j D ]}t| |t�}|tur t| j | j||�||< q|S )z� Serialize the current PClass using custom serializer functions for fields where such have been supplied. )r rH rI r � serializer)rJ rA r2 r r1 r r r r � s �zPClass.serializec G s t | |�S )aT Apply transformations to the currency PClass. For more details on transformations see the documentation for PMap. Transformations on PClasses do not support key matching since the PClass is not a collection. Apart from that the transformations available for other persistent types work as expected. r )rJ �transformationsr r r r � s zPClass.transformc C s> t || j�r | jD ]}t| |t�t||t�kr dS q dS tS )NFT)rO r' r rH rI �NotImplemented)rJ �otherr r r r �__eq__� s �z PClass.__eq__c C s | |k S r r )rJ rT r r r �__ne__� � z PClass.__ne__c s t t� fdd�� jD ���S )Nc 3 s � | ] }|t � |t�fV qd S r )rH rI r �rJ r r r � s � z"PClass.__hash__.<locals>.<genexpr>)�hashr! r rX r rX r �__hash__� s zPClass.__hash__c s2 t | dd�rtd�||���tt| ��||� d S )Nr Fz'Can't set attribute, key={0}, value={1})rH rB rA r" r7 � __setattr__�rJ r r1 r& r r r[ � s zPClass.__setattr__c C s t d�|���)Nz-Can't delete attribute, key={0}, use remove())rB rA )rJ r r r r � __delattr__� � zPClass.__delattr__c C s0 i }| j D ]}t| |t�}|tur|||< q|S r )r rH rI )rJ r2 r r1 r r r �_to_dict� s �zPClass._to_dictc C s( d� | jjd�dd� | �� �� D ���S )Nz{0}({1})r: c s s$ � | ] \}}d � |t|��V qdS )z{0}={1}N)rA �repr)r rL �vr r r r � s �" z"PClass.__repr__.<locals>.<genexpr>)rA r' r( rC r_ r< rX r r r �__repr__� s �zPClass.__repr__c s& t � fdd�� jD ��}t� j|ffS )Nc 3 s( � | ]}t � |�r|t� |�fV qd S r )�hasattrrH r rX r r r � s �& z$PClass.__reduce__.<locals>.<genexpr>)�dictr r r' )rJ �datar rX r � __reduce__� s zPClass.__reduce__c C s t | | �� �S )z5 Returns an evolver for this object. )�_PClassEvolverr_ rX r r r �evolver� s zPClass.evolverc C s | � � }||= |�� S )z� Remove attribute given by name from the current instance. Raises AttributeError if the attribute doesn't exist. )rh � persistent)rJ r rh r r r �remove� s z PClass.remove�NFr )r( r) r* �__doc__r# rG � classmethodrP r r rU rV rZ r[ r] r_ rb rf rh rj r+ r r r& r r7 % s$ $ r7 )� metaclassc s` e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dd� Z � fdd�Z dd� Z � Z S )rg )�_pclass_evolver_original�_pclass_evolver_data� _pclass_evolver_data_is_dirtyr8 c C s || _ || _d| _t� | _d S rk )ro rp rq rG r8 )rJ �original� initial_dictr r r �__init__� s z_PClassEvolver.__init__c C s | j | S r )rp �rJ �itemr r r � __getitem__� rW z_PClassEvolver.__getitem__c C s2 | j �|t�|ur|| j |< | j�|� d| _| S �NT)rp �getrI r8 �addrq r\ r r r rG � s z_PClassEvolver.setc C s | � ||� d S r )rG r\ r r r � __setitem__� s z_PClassEvolver.__setitem__c C s0 || j v r| j |= | j�|� d| _| S t|��rx )rp r8 �discardrq rB ru r r r rj � s z_PClassEvolver.removec C s | � |� d S r )rj ru r r r � __delitem__� r^ z_PClassEvolver.__delitem__c C s& | j r| jjdd| ji| j��S | jS )Nr8 r )rq ro r' r8 rp rX r r r ri � s �z_PClassEvolver.persistentc s0 || j vr | �||� d S tt| ��||� d S r )r rG r" rg r[ r\ r& r r r[ � s z_PClassEvolver.__setattr__c C s | | S r r ru r r r � __getattr__ s z_PClassEvolver.__getattr__)r( r) r* r rt rw rG r{ rj r} ri r[ r~ r+ r r r& r rg � s rg N)�pyrsistent._checked_typesr r r r �pyrsistent._field_commonr r r r r r �pyrsistent._transformationsr r �typer �objectrI r6 r7 rg r r r r �<module> s 1