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validators.cpython-310.pyc
o `, @ s d Z ddlmZmZmZ ddlZddlmZmZm Z m Z ddl m Z g dZ e dd d d G d d d eZd d Ze dd d dG dd deZd,ddZe dd d d G dd deZdd Ze dd d d G dd deZdd Ze dd d d G d d d eZd d Ze ddd d G d d! d!eZd"d# Ze dd d d G d$d% d%eZd-d&d'Z e dd d d G d(d) d)eZ d-d*d+Z dS ).z Commonly useful validators. )absolute_importdivisionprint_functionN ) _AndValidatorand_attribattrs)NotCallableError) r deep_iterable deep_mappingin_ instance_of is_callable matches_reoptionalprovidesFT)reprslotshashc @ " e Zd Ze Zdd Zdd ZdS )_InstanceOfValidatorc C s4 t || jstdj|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}).)nametypeactualvalueN) isinstancer TypeErrorformatr __class__selfinstattrr r% 1/usr/lib/python3/dist-packages/attr/validators.py__call__ s z _InstanceOfValidator.__call__c C dj | jdS )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%tddtdd t|D f t| |}|tju r4|j}n|tju r=|j}n|rC|j }n td | |}|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- ).0er% r% r& <genexpr>x s z matches_re.<locals>.<genexpr>z(?:{})\Z) getattrresearchmatchr5 joinsortedsetcompiler8 r r2 )r3 r7 funcr8 Z 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)rG Z providedByr r r r! r% r% r& r' s z_ProvidesValidator.__call__c C r( )Nz0<provides validator for interface {interface!r}>rG )r rG r* r% r% r& r+ r, z_ProvidesValidator.__repr__N)r- r. r/ r rG r' r+ r% r% r% r& rF s rF 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. )rF rH 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| jdS )Nz'<optional validator for {what} or None>)Zwhat)r r rL r* r% r% r& r+ s z_OptionalValidator.__repr__N)r- r. r/ r rL r' r+ r% r% r% r& rI s rI c C s t | tr 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 listrI r rK r% r% r& r s r c @ r ) _InValidatorc C sF z|| j v }W n ty d}Y nw |s!tdj|j| j |dd S )NFz/'{name}' must be in {options!r} (got {value!r}))r optionsr )rO r r5 r r )r" r# r$ r Z in_optionsr% r% r& r' s z_InValidator.__call__c C r( )Nz(<in_ validator with options {options!r}>rO )r rO r* r% r% r& r+ r, z_InValidator.__repr__N)r- r. r/ r rO r' r+ r% r% r% r& rN s rN 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 )rN rP r% r% r& r s r c @ s e Zd Zdd Zdd ZdS )_IsCallableValidatorc C s, t |sd}t|j|j||jd|ddS )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& rQ s rQ 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. )rQ r% r% r% r& r s r c @ s: e Zd Zee dZedee dZdd Zdd Z dS ) _DeepIterablerK NdefaultrL c C s4 | j dur | ||| |D ] }| ||| qdS r N)iterable_validatormember_validator)r" r# r$ r memberr% r% r& r' / s z_DeepIterable.__call__c C s, | j d u rdndj| j d}dj|| jdS )N z {iterable!r})iterablezJ<deep_iterable validator for{iterable_identifier} iterables of {member!r}>)iterable_identifierr[ )rY r rZ )r" r^ r% r% r& r+ 9 s z_DeepIterable.__repr__) r- r. r/ r r rZ r rY r' r+ r% r% r% r& rU ( s rU 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 )rU )rZ rY r% r% r& r H s r c @ sF e Zd Zee dZee dZedee dZdd Z dd Z dS ) _DeepMappingrK NrV c C sF | j dur | ||| |D ]}| ||| | |||| qdS rX )mapping_validator key_validatorvalue_validator)r" r# r$ r keyr% r% r& r' ] s z_DeepMapping.__call__c C s dj | j| jdS )NzA<deep_mapping validator for objects mapping {key!r} to {value!r}>)rc r )r ra rb r* r% r% r& r+ h s z_DeepMapping.__repr__) r- r. r/ r r ra rb r r` r' r+ r% r% r% r& r_ W s r_ 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 )r_ )ra rb r` r% r% r& r n s r )r NrJ ) __doc__Z __future__r r r r> _maker r r r exceptionsr __all__objectr r r2 r rF r rI r rN r rQ r rU r r_ r r% r% r% r& <module> s< -