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B ^u_�, � @ s� d Z ddlmZmZmZ ddlZddlmZmZm Z m Z ddl m Z ddd d d d d ddg Z e dddd�G dd� de��Zdd � Ze dddd�G dd� de��Zd,dd �Ze dddd�G dd� de��Zd d� Ze dddd�G d d � d e��Zd d� Ze dddd�G d d!� d!e��Zd"d � Ze dddd�G d#d$� d$e��Zd%d � Ze dddd�G d&d'� d'e��Zd-d(d�Z e dddd�G d)d*� d*e��Z d.d+d �Z dS )/z Commonly useful validators. � )�absolute_import�division�print_functionN� )� _AndValidator�and_�attrib�attrs)�NotCallableErrorr � deep_iterable� deep_mapping�in_� instance_of� is_callable� matches_re�optional�providesFT)�repr�slots�hashc @ s" e Zd Ze� Zdd� Zdd� ZdS )�_InstanceOfValidatorc C s4 t || j�s0tdj|j| j|j|d�|| j|��dS )zP We use a callable class to be able to change the ``__repr__``. z?'{name}' must be {type!r} (got {value!r} that is a {actual!r}).)�name�type�actual�valueN)� isinstancer � TypeError�formatr � __class__)�self�inst�attrr � r" �@/opt/alt/python37/lib/python3.7/site-packages/attr/validators.py�__call__ s z _InstanceOfValidator.__call__c C s dj | jd�S )Nz)<instance_of validator for type {type!r}>)r )r r )r r" r" r# �__repr__0 s z _InstanceOfValidator.__repr__N)�__name__� __module__� __qualname__r r r$ r% r" r" r" r# r s r c C s t | �S )a� A validator that raises a `TypeError` if the initializer is called with a wrong type for this particular attribute (checks are performed using `isinstance` therefore it's also valid to pass a tuple of types). :param type: The type to check for. :type type: type or tuple of types :raises TypeError: With a human readable error message, the attribute (of type `attr.Attribute`), the expected type, and the value it got. )r )r r" r" r# r 6 s )r �frozenr c @ s. e Zd Ze� Ze� Ze� Zdd� Zdd� ZdS )�_MatchesReValidatorc C s0 | � |�s,tdj|j| jj|d�|| j|��dS )zP We use a callable class to be able to change the ``__repr__``. z7'{name}' must match regex {regex!r} ({value!r} doesn't))r �regexr N)� match_func� ValueErrorr r r+ �pattern)r r r! r r" r" r# r$ L s z _MatchesReValidator.__call__c C s dj | jd�S )Nz,<matches_re validator for pattern {regex!r}>)r+ )r r+ )r r" r" r# r% [ s z _MatchesReValidator.__repr__N) r& r' r( r r+ �flagsr, r$ r% r" r" r" r# r* F s r* c C s� t tdd�}|dtjtjf}||krJtdd�tdd� t|�D ���f ��t�| |�}|tjkrh|j}n6|tjkrz|j}n$|r�|j }nt�d� | �|�}|j}t |||�S )a} A validator that raises `ValueError` if the initializer is called with a string that doesn't match *regex*. :param str regex: a regex string to match against :param int flags: flags that will be passed to the underlying re function (default 0) :param callable func: which underlying `re` function to call (options are `re.fullmatch`, `re.search`, `re.match`, default is ``None`` which means either `re.fullmatch` or an emulation of it on Python 2). For performance reasons, they won't be used directly but on a pre-`re.compile`\ ed pattern. .. versionadded:: 19.2.0 � fullmatchNz'func' must be one of %s.z, c s s | ]}|r|j pd V qdS )�NoneN)r& )�.0�er" r" r# � <genexpr>y s z matches_re.<locals>.<genexpr>z(?:{})\Z) �getattr�re�search�matchr- �join�sorted�set�compiler0 r r* )r+ r/ �funcr0 Z valid_funcsr. r, r" r" r# r a s$ c @ s" e Zd Ze� Zdd� Zdd� ZdS )�_ProvidesValidatorc C s0 | j �|�s,tdj|j| j |d�|| j |��dS )zP We use a callable class to be able to change the ``__repr__``. z<'{name}' must provide {interface!r} which {value!r} doesn't.)r � interfacer N)r? Z providedByr r r )r r r! r r" r" r# r$ � s z_ProvidesValidator.__call__c C s dj | jd�S )Nz0<provides validator for interface {interface!r}>)r? )r r? )r r" r" r# r% � s z_ProvidesValidator.__repr__N)r& r' r( r r? r$ r% r" r" r" r# r> � s r> c C s t | �S )a( A validator that raises a `TypeError` if the initializer is called with an object that does not provide the requested *interface* (checks are performed using ``interface.providedBy(value)`` (see `zope.interface <https://zopeinterface.readthedocs.io/en/latest/>`_). :param interface: The interface to check for. :type interface: ``zope.interface.Interface`` :raises TypeError: With a human readable error message, the attribute (of type `attr.Attribute`), the expected interface, and the value it got. )r> )r? r" r" r# r � s c @ s" e Zd Ze� Zdd� Zdd� ZdS )�_OptionalValidatorc C s |d kr d S | � |||� d S )N)� validator)r r r! r r" r" r# r$ � s z_OptionalValidator.__call__c C s dj t| j�d�S )Nz'<optional validator for {what} or None>)Zwhat)r r rA )r r" r" r# r% � s z_OptionalValidator.__repr__N)r& r' r( r rA r$ r% r" r" r" r# r@ � s r@ c C s t | t�rtt| ��S t| �S )a� A validator that makes an attribute optional. An optional attribute is one which can be set to ``None`` in addition to satisfying the requirements of the sub-validator. :param validator: A validator (or a list of validators) that is used for non-``None`` values. :type validator: callable or `list` of callables. .. versionadded:: 15.1.0 .. versionchanged:: 17.1.0 *validator* can be a list of validators. )r �listr@ r )rA r" r" r# r � s c @ s" e Zd Ze� Zdd� Zdd� ZdS )� _InValidatorc C sH y|| j k}W n tk r& d}Y nX |sDtdj|j| j |d���d S )NFz/'{name}' must be in {options!r} (got {value!r}))r �optionsr )rD r r- r r )r r r! r Z in_optionsr" r" r# r$ � s z_InValidator.__call__c C s dj | jd�S )Nz(<in_ validator with options {options!r}>)rD )r rD )r r" r" r# r% � s z_InValidator.__repr__N)r& r' r( r rD r$ r% r" r" r" r# rC � s rC c C s t | �S )a� A validator that raises a `ValueError` if the initializer is called with a value that does not belong in the options provided. The check is performed using ``value in options``. :param options: Allowed options. :type options: list, tuple, `enum.Enum`, ... :raises ValueError: With a human readable error message, the attribute (of type `attr.Attribute`), the expected options, and the value it got. .. versionadded:: 17.1.0 )rC )rD r" r" r# r � s c @ s e Zd Zdd� Zdd� ZdS )�_IsCallableValidatorc C s, t |�s(d}t|j|j||jd�|d��dS )zP We use a callable class to be able to change the ``__repr__``. z?'{name}' must be callable (got {value!r} that is a {actual!r}).)r r r )�msgr N)�callabler r r r )r r r! r �messager" r" r# r$ s z _IsCallableValidator.__call__c C s dS )Nz<is_callable validator>r" )r r" r" r# r% s z _IsCallableValidator.__repr__N)r& r' r( r$ r% r" r" r" r# rE s rE c C s t � S )aw A validator that raises a `attr.exceptions.NotCallableError` if the initializer is called with a value for this particular attribute that is not callable. .. versionadded:: 19.1.0 :raises `attr.exceptions.NotCallableError`: With a human readable error message containing the attribute (`attr.Attribute`) name, and the value it got. )rE r" r" r" r# r s c @ s: e Zd Zee� d�Zedee� �d�Zdd� Zdd� Z dS )� _DeepIterable)rA N)�defaultrA c C s8 | j dk r| � |||� x|D ]}| �|||� q W dS )zP We use a callable class to be able to change the ``__repr__``. N)�iterable_validator�member_validator)r r r! r �memberr" r" r# r$ / s z_DeepIterable.__call__c C s, | j d krdn dj| j d�}dj|| jd�S )N� z {iterable!r})�iterablezJ<deep_iterable validator for{iterable_identifier} iterables of {member!r}>)�iterable_identifierrM )rK r rL )r rP r" r" r# r% 9 s z_DeepIterable.__repr__) r& r' r( r r rL r rK r$ r% r" r" r" r# rI ( s rI c C s t | |�S )a1 A validator that performs deep validation of an iterable. :param member_validator: Validator to apply to iterable members :param iterable_validator: Validator to apply to iterable itself (optional) .. versionadded:: 19.1.0 :raises TypeError: if any sub-validators fail )rI )rL rK r" r" r# r H s c @ sF e Zd Zee� d�Zee� d�Zedee� �d�Zdd� Z dd� Z dS )� _DeepMapping)rA N)rJ rA c C sJ | j dk r| � |||� x,|D ]$}| �|||� | �|||| � q W dS )zP We use a callable class to be able to change the ``__repr__``. N)�mapping_validator� key_validator�value_validator)r r r! r �keyr" r" r# r$ ] s z_DeepMapping.__call__c C s dj | j| jd�S )NzA<deep_mapping validator for objects mapping {key!r} to {value!r}>)rU r )r rS rT )r r" r" r# r% h s z_DeepMapping.__repr__) r& r' r( r r rS rT r rR r$ r% r" r" r" r# rQ W s rQ c C s t | ||�S )a} A validator that performs deep validation of a dictionary. :param key_validator: Validator to apply to dictionary keys :param value_validator: Validator to apply to dictionary values :param mapping_validator: Validator to apply to top-level mapping attribute (optional) .. versionadded:: 19.1.0 :raises TypeError: if any sub-validators fail )rQ )rS rT rR r" r" r# r n s )r N)N)N) �__doc__Z __future__r r r r6 �_maker r r r � exceptionsr �__all__�objectr r r* r r> r r@ r rC r rE r rI r rQ r r" r" r" r# �<module> sJ -
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