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o ��`�, � @ s� d Z ddlmZmZmZ ddlZddlmZmZm Z m Z ddl m Z g d�Z e dd d d �G d d � d e��Zd d� Ze dd d d�G dd� de��Zd,dd�Ze dd d d �G dd� de��Zdd� Ze dd d d �G dd� de��Zdd� Ze dd d d �G d d � d e��Zd d � Ze ddd d �G d d!� d!e��Zd"d#� Ze dd d d �G d$d%� d%e��Zd-d&d'�Z e dd d d �G d(d)� d)e��Z d-d*d+�Z dS ).z Commonly useful validators. � )�absolute_import�division�print_functionN� )� _AndValidator�and_�attrib�attrs)�NotCallableError) r � deep_iterable� deep_mapping�in_� instance_of� is_callable� matches_re�optional�providesFT)�repr�slots�hashc @ �" e Zd Ze� Zdd� Zdd� ZdS )�_InstanceOfValidatorc C s4 t || j�stdj|j| j|j|d�|| j|��dS )�P 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% �1/usr/lib/python3/dist-packages/attr/validators.py�__call__ s ���z _InstanceOfValidator.__call__c C � dj | jd�S )Nz)<instance_of validator for type {type!r}>�r )r r �r" r% r% r& �__repr__0 � �z _InstanceOfValidator.__repr__N)�__name__� __module__� __qualname__r r r' r+ r% r% r% r& r s r c C � 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 )r �frozenr c @ s. e Zd Ze� Ze� Ze� Zdd� Zdd� ZdS )�_MatchesReValidatorc C s0 | � |�stdj|j| jj|d�|| j|��dS )r z7'{name}' must match regex {regex!r} ({value!r} doesn't))r �regexr N)� match_func� ValueErrorr r r3 �patternr! r% r% r& r' L s ���z _MatchesReValidator.__call__c C r( )Nz,<matches_re validator for pattern {regex!r}>)r3 )r r3 r* r% r% r& r+ [ r, z _MatchesReValidator.__repr__N) r- r. r/ r r3 �flagsr4 r' r+ r% r% r% r& r2 F s r2 c C s� t tdd�}|dtjtjf}||vr%tdd�tdd� t|�D ���f ��t�| |�}|tju r4|j}n|tju r=|j}n|rC|j }n t�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 p d V qdS )�NoneN)r- )�.0�er% r% r& � <genexpr>x s � �z matches_re.<locals>.<genexpr>z(?:{})\Z) �getattr�re�search�matchr5 �join�sorted�set�compiler8 r r2 )r3 r7 �funcr8 � valid_funcsr6 r4 r% r% r& r a s. ����� r c @ r )�_ProvidesValidatorc C s0 | j �|�stdj|j| j |d�|| j |��dS )r z<'{name}' must provide {interface!r} which {value!r} doesn't.)r � interfacer N)rH � providedByr r r r! r% r% r& r' � s ���z_ProvidesValidator.__call__c C r( )Nz0<provides validator for interface {interface!r}>�rH )r rH r* r% r% r& r+ � r, z_ProvidesValidator.__repr__N)r- r. r/ r rH r' r+ r% r% r% r& rG � s rG c C r0 )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. )rG rJ r% r% r& r � s r c @ r )�_OptionalValidatorc C s |d u rd S | � |||� d S �N�� validatorr! r% r% r& r' � s z_OptionalValidator.__call__c C s dj t| j�d�S )Nz'<optional validator for {what} or None>)�what)r r rN r* r% r% r& r+ � s �z_OptionalValidator.__repr__N)r- r. r/ r rN r' r+ r% r% r% r& rK � s rK c C s t | t�r tt| ��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 �listrK r rM r% r% r& r � s r c @ r )� _InValidatorc C sF z|| j v }W n ty d}Y nw |s!tdj|j| j |d���d S )NFz/'{name}' must be in {options!r} (got {value!r}))r �optionsr )rR r r5 r r )r" r# r$ r � in_optionsr% r% r& r' � s � ���z_InValidator.__call__c C r( )Nz(<in_ validator with options {options!r}>�rR )r rR r* r% r% r& r+ � r, z_InValidator.__repr__N)r- r. r/ r rR r' r+ r% r% r% r& rQ � s rQ c C r0 )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 )rQ rT r% r% r& r � s r c @ s e Zd Zdd� Zdd� ZdS )�_IsCallableValidatorc C s, t |�sd}t|j|j||jd�|d��dS )r 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& rU s rU 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. )rU r% r% r% r& r s r c @ s: e Zd Zee� d�Zedee� �d�Zdd� Zdd� Z dS )� _DeepIterablerM N��defaultrN c C s4 | j dur | � |||� |D ] }| �|||� qdS �r N)�iterable_validator�member_validator)r" r# r$ r �memberr% r% r& r' / s �z_DeepIterable.__call__c C s, | j d u rdndj| j d�}dj|| jd�S )N� z {iterable!r})�iterablezJ<deep_iterable validator for{iterable_identifier} iterables of {member!r}>)�iterable_identifierr_ )r] r r^ )r" rb r% r% r& r+ 9 s � ��z_DeepIterable.__repr__) r- r. r/ r r r^ r r] r' r+ r% r% r% r& rY ( s � rY 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 )rY )r^ r] r% r% r& r H s r c @ sF e Zd Zee� d�Zee� d�Zedee� �d�Zdd� Z dd� Z dS )� _DeepMappingrM NrZ c C sF | j dur | � |||� |D ]}| �|||� | �|||| � qdS r\ )�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}>)rg r )r re rf r* r% r% r& r+ h s �z_DeepMapping.__repr__) r- r. r/ r r re rf r rd r' r+ r% r% r% r& rc W s rc 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 )rc )re rf rd r% r% r& r n s r )r NrL ) �__doc__� __future__r r r r> �_maker r r r � exceptionsr �__all__�objectr r r2 r rG r rK r rQ r rU r rY r rc r r% r% r% r& �<module> s< -
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