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편집 파일: dataclasses.cpython-39.pyc
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s ��r� c C s$ t d| �}tddd|� d�g|d�S )Nr �__hash__r z return hash(r7 r� )rQ ro )r ra r� r r r �_hash_fnM s �r� c C s$ | |j u p"t| �|ju o"| j|j u S r )�ClassVarr% � _GenericAlias� __origin__)�a_type�typingr r r � _is_classvarU s �r� c C s | |j u pt| �|j u S r )r r% )r� � dataclassesr r r � _is_initvar] s �r� c C s� t �| �}|r�d }|�d�}|s2tj�|j�j}n2tj�|j�}|rd|j�|�|u rdtj�|j�j}|r�||�|�d��|�r�dS dS )N� � TF)�_MODULE_IDENTIFIER_RE�match�group�sys�modules�getr �__dict__) � annotationr) Za_moduler� Zis_type_predicater� rn Z module_name�moduler r r �_is_typed s ) r� c C s8 t | |t�}t|t�r |}nt|tj�r,t}t|d�}||_||_t |_ t j � d�}|r�t||�s�t|jt�r�t|j| ||jt�r�t|_ |j t u r�t j t }t||�s�t|jt�r�t|j| ||jt�r�t|_ |j ttfv r�|jtur�td|j� d���|j t u �r4t|jttt f��r4t dt|j�� d|j� d���|S )N)r, r� �field z cannot have a default factoryzmutable default z for field z$ is not allowed: use default_factory) r9 r r' r r4 �MemberDescriptorTyper r r% r! r2 r� r� r� r� �strr� r� r" r r� r r# r- ry r, �list�dictr] rD )r) Za_namer� r, rK r� r� r r r � _get_field� sJ ��� ��� � r� c C s || j v rdS t| ||� dS )NTF)r� �setattr)r) r rq r r r �_set_new_attribute� s r� c C s d S r r �r) r ra r r r �_hash_set_none� s r� c C s dd� |D �}t ||�S )Nc S s( g | ] }|j d u r|jrn|j r|�qS r )r. r0 rI r r r rN r z _hash_add.<locals>.<listcomp>)r� )r) r ra �fldsr r r � _hash_add s r� c C s t d| j� ���d S )Nz-Cannot overwrite attribute __hash__ in class )ry r r� r r r �_hash_exception s �r� ))FFFF)FFFT)FFTF)FFTT)FTFF)FTFT)FTTF)FTTT)TFFF)TFFT)TFTF)TFTT)TTFF)TTFT)TTTF)TTTTc s� i }� j tjv r tj� j j}ni }t� tt||||||�� d} d} � jddd� D ]D} t| t d �} | d urVd} | � � D ]} | || j < qzt| t�j rVd} qV� j� di �}� fdd�|�� D �}|D ]L} | || j < tt� | j d �t�r�| jtu �r t� | j � q�t� | j | j� qĈ j�� D ].\}}t|t��r ||v�r t|�d����q | �rz| �rf|�sftd ��| �sz|�rztd ��t� t |� � j� d t�}|tu �p�|d u �o�d � jv }|�r�|�s�td ��|�rt� t�}dd� |� � D �}t� dt|||d|v �rdnd|�� dd� |� � D �}|�rHdd� |D �}t� dt||�� |�r�dd� |D �}td|�}td|�}t� d t d d|||d�� |�r�dd� |D �}td|�}td|�}dD ]>\}}t� |t |||||d���r�td|� d � j � d ����q�|�r8t � ||�D ].}t� |j |��rtd|j � d � j � ����qt t |�t |�t |�|f }|�rh|� ||�� _!t� d ��s�� j t"t#�$� ���%d d � � _&� S )!NF���r T�__annotations__c s g | ]\}}t � ||��qS r )r� )rJ r r% �r) r r rN _ s �z"_process_class.<locals>.<listcomp>z& is a field but has no type annotationz5cannot inherit non-frozen dataclass from a frozen onez5cannot inherit frozen dataclass from a non-frozen oner� �__eq__z eq must be true if order is truec S s g | ]}|j ttfv r|�qS r )r2 r! r# rI r r r rN � s �r r Z__dataclass_self__c S s g | ]}|j tu r|�qS r �r2 r! rI r r r rN � r c S s g | ]}|j r|�qS r )r( rI r r r rN � r r c S s g | ]}|j r|�qS r �r0 rI r r r rN � r r� z==r� c S s g | ]}|j r|�qS r r� rI r r r rN � r ))�__lt__�<)�__le__z<=)�__gt__�>)�__ge__z>=zCannot overwrite attribute z in class z). Consider using functools.total_ordering�__doc__z -> Nonerd )'r r� r� r� r� �_PARAMSr= �__mro__r9 �_FIELDS�valuesr rB r� �itemsr' r r, r �delattrry rD �hasattrr| r� r r� rQ r� r r� � _hash_action�boolr� r� �inspectZ signaturer r� ) r) r/ r( r? r@ rA rB r ra Zany_frozen_baseZhas_dataclass_basesrf Z base_fieldsrK Zcls_annotationsZ cls_fieldsr rq Z class_hashZhas_explicit_hashr} r� Z field_listr� r� r� r� Z hash_actionr r� r �_process_class) s� � � � �� �� �� � � � �r� Fr> c s* � �����fdd�}| du r"|S || �S )a� Returns the same class as was passed in, with dunder methods added based on the fields defined in the class. Examines PEP 526 __annotations__ to determine fields. If init is true, an __init__() method is added to the class. If repr is true, a __repr__() method is added. If order is true, rich comparison dunder methods are added. If unsafe_hash is true, a __hash__() method function is added. If frozen is true, fields may not be assigned to after instance creation. c s t | ��� ����S r )r� r� �r? rB r/ r@ r( rA r r �wrap� s zdataclass.<locals>.wrapNr )r) r/ r( r? r@ rA rB r� r r� r r � s r c C s@ zt | t�}W n ty( td��Y n0 tdd� |�� D ��S )z�Return a tuple describing the fields of this dataclass. Accepts a dataclass or an instance of one. Tuple elements are of type Field. z0must be called with a dataclass type or instancec s s | ]}|j tu r|V qd S r r� rI r r r rg r zfields.<locals>.<genexpr>)r9 r� �AttributeErrorry �tupler� )Zclass_or_instancer r r r r s r c C s t t| �t�S )z2Returns True if obj is an instance of a dataclass.)r� r% r� )�objr r r �_is_dataclass_instance s r� c C s* t | t�rt | t�s| nt| �}t|t�S )zEReturns True if obj is a dataclass or an instance of a dataclass.)r' r% r r� r� )r� r) r r r r s r �� dict_factoryc C s t | �std��t| |�S )a� Return the fields of a dataclass instance as a new dictionary mapping field names to field values. Example usage: @dataclass class C: x: int y: int c = C(1, 2) assert asdict(c) == {'x': 1, 'y': 2} If given, 'dict_factory' will be used instead of built-in dict. The function applies recursively to field values that are dataclass instances. This will also look into built-in containers: tuples, lists, and dicts. z0asdict() should be called on dataclass instances)r� ry � _asdict_inner)r� r� r r r r s r c s� t | �rDg }t| �D ]&}tt| |j�� �}|�|j|f� q� |�S t| t�rrt| d�rrt | �� fdd�| D �� S t| t tf�r�t | �� fdd�| D ��S t| t �r�t | �� fdd�| � � D ��S t �| �S d S )N�_fieldsc s g | ]}t |� ��qS r �r� �rJ �vr� r r rN Q r z!_asdict_inner.<locals>.<listcomp>c 3 s | ]}t |� �V qd S r r� r� r� r r rg V r z _asdict_inner.<locals>.<genexpr>c 3 s& | ] \}}t |� �t |� �fV qd S r r� �rJ �kr� r� r r rg X s ��)r� r r� r9 r r{ r' r� r� r% r� r� r� �copy�deepcopy)r� r� rX rK rq r r� r r� 6 s �r� �� tuple_factoryc C s t | �std��t| |�S )a� Return the fields of a dataclass instance as a new tuple of field values. Example usage:: @dataclass class C: x: int y: int c = C(1, 2) assert astuple(c) == (1, 2) If given, 'tuple_factory' will be used instead of built-in tuple. The function applies recursively to field values that are dataclass instances. This will also look into built-in containers: tuples, lists, and dicts. z1astuple() should be called on dataclass instances)r� ry �_astuple_inner)r� r� r r r r _ s r c s� t | �r>g }t| �D ] }tt| |j�� �}|�|� q� |�S t| t�rlt| d�rlt | �� fdd�| D �� S t| t tf�r�t | �� fdd�| D ��S t| t �r�t | �� fdd�| � � D ��S t �| �S d S )Nr� c s g | ]}t |� ��qS r �r� r� r� r r rN � r z"_astuple_inner.<locals>.<listcomp>c 3 s | ]}t |� �V qd S r r� r� r� r r rg � r z!_astuple_inner.<locals>.<genexpr>c 3 s& | ] \}}t |� �t |� �fV qd S r r� r� r� r r rg � s �)r� r r� r9 r r{ r' r� r� r% r� r� r� r� r� )r� r� rX rK rq r r� r r� w s �r� r )�bases� namespacer/ r( r? r@ rA rB c s � du ri � n� � � � t� } i } |D ]�} t| t�r<| } d}nDt| �dkrR| \} }n.t| �dkrr| \} }}|� | < ntd| ����t| t�r�| �� s�td| ����t�| �r�td| ����| | v r�td| ����| � | � || | < q$| � d < t � | |i � fd d ��}t ||||||| d �S ) a� Return a new dynamically created dataclass. The dataclass name will be 'cls_name'. 'fields' is an iterable of either (name), (name, type) or (name, type, Field) objects. If type is omitted, use the string 'typing.Any'. Field objects are created by the equivalent of calling 'field(name, type [, Field-info])'. C = make_dataclass('C', ['x', ('y', int), ('z', int, field(init=False))], bases=(Base,)) is equivalent to: @dataclass class C(Base): x: 'typing.Any' y: int z: int = field(init=False) For the bases and namespace parameters, see the builtin type() function. The parameters init, repr, eq, order, unsafe_hash, and frozen are passed to dataclass(). Nz typing.Anyr� � zInvalid field: z'Field names must be valid identifiers: z"Field names must not be keywords: zField name duplicated: r� c s | � � �S r )rz )rn �r� r r �<lambda>� r z make_dataclass.<locals>.<lambda>r> ) r� r] r' r� �lenry � isidentifier�keyword� iskeywordrU r4 � new_classr )�cls_namer r� r� r/ r( r? r@ rA rB �seenZanns�itemr �tp�specr) r r� r r � s8 �r c K s� t | �std��t| t��� D ]v}|jtu r.q |jsR|j|v r t d|j� d���q |j|vr |jt u r�|j t u r�t d|j�d���t| |j�||j< q | j f i |��S )a, Return a new object replacing specified fields with new values. This is especially useful for frozen classes. Example usage: @dataclass(frozen=True) class C: x: int y: int c = C(1, 2) c1 = replace(c, x=3) assert c1.x == 3 and c1.y == 2 z1replace() should be called on dataclass instancesr� zC is declared with init=False, it cannot be specified with replace()zInitVar z! must be specified with replace())r� ry r9 r� r� r2 r" r/ r rD r# r, r � __class__)r� ZchangesrK r r r r � s r )N)A�rer� r� r4 r� r� ri r^ rS r �__all__r� r r rw r r r5 r3 r r! r" r# r� r� r| �compiler� r r r= r rQ r` ro rs rt ru r r� r� r� r� r� r� r� r� r� r� r� r� r� r� r r r� r r� r r� r� r r� r r r r r r �<module> s� < � � 62 ;R� > � )� B