Your IP : 216.73.216.213
���[�$ � @ s� d d l Z d d l m Z m Z m Z m Z d d l m Z m Z m Z m
Z
m Z d d l m
Z
d d � Z Gd d � d e � Z e � Z d d
� Z e j e � Gd d � d e � � Z Gd
d � d e � Z d S)� N)�InvariantException� CheckedType�_restore_pickle�store_invariants)�
set_fields�
check_type�PFIELD_NO_INITIAL� serialize�check_global_invariants)� transformc C s t | � d k o | d t k S)N� r )�lenr )�bases� r �E/opt/alt/python35/lib64/python3.5/site-packages/pyrsistent/_pclass.py�
_is_pclass s r c s" e Z d Z � f d d � Z � S)�
PClassMetac s� t | | d d �t | | d d � d
t d d � | d D� � | d <t | � re | d d 7<t t | � j | | | | � S) N�name�_pclass_fields�_pclass_invariantsZ
__invariant__�_pclass_frozenc s s | ] } | Vq d S)Nr )�.0�keyr r r � <genexpr> s z%PClassMeta.__new__.<locals>.<genexpr>� __slots__� __weakref__)r )r )r r �tupler �superr �__new__)Zmcsr r �dct)� __class__r r r s % zPClassMeta.__new__)�__name__�
__module__� __qualname__r r r )r r r s r c C sR t | | | | � | j | � \ } } | s> | j | � n t | | | � d S)N)r Z invariant�append�setattr)�cls�fieldr �value�result�invariant_errorsZis_okZ
error_coder r r �_check_and_set_attr s
r+ c s� e Z d Z d Z � f d d � Z d d � Z e d d d d � � Z d d
d � Z d d
� Z d d � Z
d d � Z d d � Z � f d d � Z
d d � Z d d � Z d d � Z d d � Z d d � Z d d! � Z � S)"�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
s� t t | � j | � } | j d d � } g } g } x� | j j � D]� \ } } | | k r� | d k sv | | k r� | j | | � } n
| | } t | | | | | | � | | =qF | j t k rt
| j � r� | j � n | j } t | | | | | | � qF | j rF | j d j
| j | � � qF W| s=| r[t t | � t | � d � � | r�t d j
d j | � | j � � � t | | j � d | _ | S)N�_factory_fieldsz{0}.{1}zField invariant failedz0'{0}' are not among the specified fields for {1}z, T)r r, r �popr �items�factoryr+ �initialr �callable� mandatoryr$ �formatr! r r �AttributeError�joinr
r r )
r& �kwargsr) �factory_fieldsZmissing_fieldsr* r r' r( r1 )r r r r . s2
$ zPClass.__new__c O s | r | d | | d <t | � } xE | j D]: } | | k r. t | | t � } | t k r. | | | <q. W| j d | | � 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 r- )�setr �getattr�_MISSING_VALUEr )�self�argsr7 r8 r r( r r r r9 N s z
PClass.setNFc sE t � | � r � S| r5 � f d d � | j 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 | ] } | � k r � | | � q Sr r )r �k)r7 r r �
<dictcomp>{ s z!PClass.create.<locals>.<dictcomp>r- )�
isinstancer )r& r7 r- Z ignore_extrar )r7 r �createn s
z
PClass.createc C s\ i } xO | j D]D } t | | t � } | t k r t | j | j | | � | | <q W| S)z�
Serialize the current PClass using custom serializer functions for fields where
such have been supplied.
)r r: r; r Z
serializer)r< r4 r) r r( 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 )r< Ztransformationsr r r r � s zPClass.transformc C sV t | | j � rR x9 | j D]. } t | | t � t | | t � k r d Sq Wd St S)NFT)r@ r r r: r; �NotImplemented)r< �otherr r r r �__eq__� s $z
PClass.__eq__c C s | | k S)Nr )r< rC r r r �__ne__� s z
PClass.__ne__c s& t t � f d d � � j D� � � S)Nc 3 s' | ] } | t � | t � f Vq d S)N)r: r; )r r )r< r r r � s z"PClass.__hash__.<locals>.<genexpr>)�hashr r )r< r )r< r �__hash__� s zPClass.__hash__c sG t | d d � r* t d j | | � � � t t | � j | | � d S)Nr Fz'Can't set attribute, key={0}, value={1})r: r5 r4 r r, � __setattr__)r< r r( )r r r rH � s zPClass.__setattr__c C s t d j | � � � d S)Nz-Can't delete attribute, key={0}, use remove())r5 r4 )r< r r r r � __delattr__� s zPClass.__delattr__c C sF i } x9 | j D]. } t | | t � } | t k r | | | <q W| S)N)r r: r; )r< r) r r( r r r �_to_dict� s zPClass._to_dictc C s8 d j | j j d j d d � | j � j � D� � � S)Nz{0}({1})z, c s s- | ]# \ } } d j | t | � � Vq d S)z{0}={1}N)r4 �repr)r r> �vr r r r � s z"PClass.__repr__.<locals>.<genexpr>)r4 r r! r6 rJ r/ )r< r r r �__repr__� s zPClass.__repr__c s5 t � f d d � � j D� � } t � j | f f S)Nc 3 s3 | ]) } t � | � r | t � | � f Vq d S)N)�hasattrr: )r r )r< r r r � s z$PClass.__reduce__.<locals>.<genexpr>)�dictr r r )r< �datar )r< r �
__reduce__� s "zPClass.__reduce__c C s t | | j � � S)z5
Returns an evolver for this object.
)�_PClassEvolverrJ )r< r r r �evolver� s zPClass.evolverc C s | j � } | | =| j � S)z�
Remove attribute given by name from the current instance. Raises AttributeError if the
attribute doesn't exist.
)rS �
persistent)r< r rS r r r �remove� s z
PClass.remove)r! r" r# �__doc__r r9 � classmethodrA r r rD rE rG rH rI rJ rM rQ rS rU r r )r r r, $ s"
r, c s� e Z d Z d Z d d � Z d d � Z d d
� Z d d � Z d
d � Z d d � Z d d � Z
� f d d � Z d d � Z � S)rR �_pclass_evolver_original�_pclass_evolver_data� _pclass_evolver_data_is_dirtyr- c C s+ | | _ | | _ d | _ t � | _ d S)NF)rX rY rZ r9 r- )r< �originalZ initial_dictr r r �__init__� s z_PClassEvolver.__init__c C s | j | S)N)rY )r< �itemr r r � __getitem__� s z_PClassEvolver.__getitem__c C sE | j j | t � | k rA | | j | <| j j | � d | _ | S)NT)rY �getr; r- �addrZ )r< r r( r r r r9 � s
z_PClassEvolver.setc C s | j | | � d S)N)r9 )r< r r( r r r � __setitem__� s z_PClassEvolver.__setitem__c C sF | | j k r6 | j | =| j j | � d | _ | St | � � d S)NT)rY r- �discardrZ r5 )r< r] r r r rU � s
z_PClassEvolver.removec C s | j | � d S)N)rU )r< r] r r r � __delitem__� s z_PClassEvolver.__delitem__c C s, | j r% | j j d | j | j � S| j S)Nr- )rZ rX r r- rY )r< r r r rT � s
z_PClassEvolver.persistentc s? | | j k r" | j | | � n t t | � j | | � d S)N)r r9 r rR rH )r< r r( )r r r rH � s z_PClassEvolver.__setattr__c C s | | S)Nr )r< r] r r r � __getattr__ s z_PClassEvolver.__getattr__)rX rY rZ r- )
r! r" r# r r\ r^ r9 ra rU rc rT rH rd r r )r r rR � s rR )�sixZpyrsistent._checked_typesr r r r Zpyrsistent._field_commonr r r r r
Zpyrsistent._transformationsr r �typer �objectr; r+ �
add_metaclassr, rR r r r r �<module> s "(
�