B *U\."@sPdZddlmZmZmZddlmZmZmZm Z ddddd gZ e d d d d Gd dde Z ddZ e d d d d Gddde Zdd Ze d d d d Gddde ZddZe d d d d Gddde ZddZe d d d d Gddde ZddZe d d d d Gddde Zd&d d!Ze d d d d Gd"d#d#e Zd'd$d%ZdS)(z Commonly useful validators. )absolute_importdivisionprint_function) _AndValidatorand_attribattrsrin_ instance_ofoptionalprovidesFT)reprslotshashc@s"eZdZeZddZddZdS)_InstanceOfValidatorcCs4t||js0tdj|j|j|j|d||j|dS)zP We use a callable class to be able to change the ``__repr__``. z?'{name}' must be {type!r} (got {value!r} that is a {actual!r}).)nametypeZactualvalueN) isinstancer TypeErrorformatr __class__)selfinstattrrr.lib/python3.7/site-packages/attr/validators.py__call__s z_InstanceOfValidator.__call__cCsdj|jdS)Nz))r)rr)rrrr__repr__#sz_InstanceOfValidator.__repr__N)__name__ __module__ __qualname__rrrrrrrrr srcCst|S)a A validator that raises a :exc:`TypeError` if the initializer is called with a wrong type for this particular attribute (checks are performed using :func:`isinstance` therefore it's also valid to pass a tuple of types). :param type: The type to check for. :type type: type or tuple of types :raises TypeError: With a human readable error message, the attribute (of type :class:`attr.Attribute`), the expected type, and the value it got. )r)rrrrr )s c@s"eZdZeZddZddZdS)_ProvidesValidatorcCs0|j|s,tdj|j|j|d||j|dS)zP We use a callable class to be able to change the ``__repr__``. z<'{name}' must provide {interface!r} which {value!r} doesn't.)r interfacerN)r$Z providedByrrr)rrrrrrrr=s z_ProvidesValidator.__call__cCsdj|jdS)Nz0)r$)rr$)rrrrrLsz_ProvidesValidator.__repr__N)r r!r"rr$rrrrrrr#9sr#cCst|S)a A validator that raises a :exc:`TypeError` if the initializer is called with an object that does not provide the requested *interface* (checks are performed using ``interface.providedBy(value)`` (see `zope.interface `_). :param zope.interface.Interface interface: The interface to check for. :raises TypeError: With a human readable error message, the attribute (of type :class:`attr.Attribute`), the expected interface, and the value it got. )r#)r$rrrr Rs c@s"eZdZeZddZddZdS)_OptionalValidatorcCs|dkr dS||||dS)N) validator)rrrrrrrrfsz_OptionalValidator.__call__cCsdjt|jdS)Nz')Zwhat)rrr&)rrrrrlsz_OptionalValidator.__repr__N)r r!r"rr&rrrrrrr%bsr%cCst|trtt|St|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 :class:`list` of callables. .. versionadded:: 15.1.0 .. versionchanged:: 17.1.0 *validator* can be a list of validators. )rlistr%r)r&rrrr rs  c@s"eZdZeZddZddZdS) _InValidatorcCsHy||jk}Wntk r&d}YnX|sDtdj|j|j|ddS)NFz/'{name}' must be in {options!r} (got {value!r}))roptionsr)r)r ValueErrorrr)rrrrZ in_optionsrrrrs z_InValidator.__call__cCsdj|jdS)Nz()r))rr))rrrrrsz_InValidator.__repr__N)r r!r"rr)rrrrrrr(s r(cCst|S)a A validator that raises a :exc:`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, :class:`enum.Enum`, ... :raises ValueError: With a human readable error message, the attribute (of type :class:`attr.Attribute`), the expected options, and the value it got. .. versionadded:: 17.1.0 )r()r)rrrr sc@seZdZddZddZdS)_IsCallableValidatorcCst|stdj|jddS)zP We use a callable class to be able to change the ``__repr__``. z'{name}' must be callable)rN)callablerrr)rrrrrrrrsz_IsCallableValidator.__call__cCsdS)Nzr)rrrrrsz_IsCallableValidator.__repr__N)r r!r"rrrrrrr+sr+cCstS)a; A validator that raises a :class:`TypeError` if the initializer is called with a value for this particular attribute that is not callable. .. versionadded:: 19.1.0 :raises TypeError: With a human readable error message containing the attribute (of type :class:`attr.Attribute`) name. )r+rrrr is_callables r-c@s:eZdZeedZedeedZddZddZ dS) _DeepIterable)r&N)defaultr&cCs8|jdk r||||x|D]}||||qWdS)zP We use a callable class to be able to change the ``__repr__``. N)iterable_validatormember_validator)rrrrmemberrrrrs  z_DeepIterable.__call__cCs,|jdkrdn dj|jd}dj||jdS)Nz {iterable!r})iterablezJ)iterable_identifierr2)r0rr1)rr5rrrrs z_DeepIterable.__repr__) r r!r"rr-r1r r0rrrrrrr.s   r.NcCs 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 )r.)r1r0rrr deep_iterables r6c@sFeZdZeedZeedZedeedZddZ ddZ dS) _DeepMapping)r&N)r/r&cCsJ|jdk r||||x,|D]$}|||||||||qWdS)zP We use a callable class to be able to change the ``__repr__``. N)mapping_validator key_validatorvalue_validator)rrrrkeyrrrrs   z_DeepMapping.__call__cCsdj|j|jdS)NzA)r;r)rr9r:)rrrrrsz_DeepMapping.__repr__) r r!r"rr-r9r:r r8rrrrrrr7s    r7cCs 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 )r7)r9r:r8rrr deep_mapping s r<)N)N)__doc__Z __future__rrr_makerrrr __all__objectrr r#r r%r r(r r+r-r.r6r7r<rrrrs0