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편집 파일: dataclasses.cpython-38.pyc
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r- rw r, �list�dictr\ rC )r� Za_namer� r, rJ r� r� r r r � _get_field� sF ��� ��� r� c C s || j krdS t| ||� dS )NTF)r� �setattr)r� r ro r r r �_set_new_attribute� s r� c C s d S r r �r� r r` r r r �_hash_set_none� s r� c C s dd� |D �}t ||�S )Nc S s( g | ] }|j d kr|jrn|j r|�qS r )r. r0 rH r r r rM s z _hash_add.<locals>.<listcomp>)r� )r� r r` �fldsr r r � _hash_add s r� c C s t d| j� ���d S )Nz-Cannot overwrite attribute __hash__ in class )rw 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 tjkr tj� j j}ni }t� tt||||||�� d} d} � jddd� D ]D} t| t d �} | d k rVd} | � � D ]} | || j < qzt| t�j rVd} qV� j� di �}� fdd�|�� D �}|D ]L} | || j < tt� | j d �t�r�| jtk�r t� | j � q�t� | j | j� qĈ j�� D ].\}}t|t��r ||k�r t|�d����q | �rz| �rf|�sftd ��| �sz|�rztd ��t� t |� � j� d t�}|tk�p�|d k�o�d � jk }|�r�|�s�td ��|�rt� t�}dd� |� � D �}t� dt|||d|k�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� )rI r r% �r� r r rM ] 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 ttfkr|�qS r )r2 r r! rH r r r rM � s �r r Z__dataclass_self__c S s g | ]}|j tkr|�qS r �r2 r rH r r r rM � s c S s g | ]}|j r|�qS r )r( rH r r r rM � s r c S s g | ]}|j r|�qS r �r0 rH r r r rM � s r� z==r~ c S s g | ]}|j r|�qS r r� rH r r r rM � s ))�__lt__�<)�__le__z<=)�__gt__�>)�__ge__z>=zCannot overwrite attribute z in class z). Consider using functools.total_ordering�__doc__z -> Nonerc )'r r� r� r� r� �_PARAMSr< �__mro__r9 �_FIELDS�valuesr rA r� �itemsr' r r, r �delattrrw rC �hasattrrz r� r} r� rP r� r r� � _hash_action�boolr� r� �inspectZ signaturer r� ) r� r/ r( r> r? r@ rA r r` Zany_frozen_baseZhas_dataclass_basesre Z base_fieldsrJ Zcls_annotationsZ cls_fieldsr ro 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�}| dkr"|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> rA r/ r? r( r@ r r �wrap� s zdataclass.<locals>.wrapNr )r� r/ r( r> r? r@ rA r� r r� r r � s c C sB zt | t�}W n tk r* td��Y nX 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 tkr|V qd S r r� rH r r r rf s zfields.<locals>.<genexpr>)r9 r� �AttributeErrorrw �tupler� )Zclass_or_instancer r r r r � s 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�r| 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 s �� 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� rw � _asdict_inner)r� r� r r r r s 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� �rI �vr� r r rM O s z!_asdict_inner.<locals>.<listcomp>c 3 s | ]}t |� �V qd S r r� r� r� r r rf T s z _asdict_inner.<locals>.<genexpr>c 3 s& | ] \}}t |� �t |� �fV qd S r r� �rI �kr� r� r r rf V s ��)r� r r� r9 r ry r' r� r� r% r� r� r� �copy�deepcopy)r� r� rW rJ ro r r� r r� 4 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� rw �_astuple_inner)r� r� r r r r ] s 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 rM � s z"_astuple_inner.<locals>.<listcomp>c 3 s | ]}t |� �V qd S r r� r� r� r r rf � s z!_astuple_inner.<locals>.<genexpr>c 3 s& | ] \}}t |� �t |� �fV qd S r r� r� r� r r rf � s �)r� r r� r9 r ry r' r� r� r% r� r� r� r� r� )r� r� rW rJ ro r r� r r� u s �r� r )�bases� namespacer/ r( r> r? r@ rA c s � dkri � n� � � � t� } i } |D ]�} t| t�r<| } d}nDt| �dkrR| \} }n.t| �dkrr| \} }}|� | < ntd| ����t| t�r�| �� s�td| ����t�| �r�td| ����| | kr�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 )rx )rl �r� r r �<lambda>� � z make_dataclass.<locals>.<lambda>r= ) r� r\ r' r� �lenrw � isidentifier�keyword� iskeywordrT r4 � new_classr )Zcls_namer r� r� r/ r( r> r? r@ rA �seenZanns�itemr �tp�specr� r r� r r � s: �c O s t | �dkr tdt | �� d���| r,| \}n4d|krX|�d�}ddl}|jdtdd � ntd ��t|�sptd ��t|t�� � D ]v}|j t kr�q~|j s�|j |kr~td |j � d ���q~|j |kr~|j tkr�|jtkr�td|j �d���t||j �||j < q~|jf |�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 r� z*replace() takes 1 positional argument but z were givenr� r Nz/Passing 'obj' as keyword argument is deprecatedr� )� stacklevelz7replace() missing 1 required positional argument: 'obj'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� rw �pop�warnings�warn�DeprecationWarningr� r9 r� r� r2 r r/ r rC r! r, r � __class__)rk Zchangesr� r� rJ r r r r � s4 � z(obj, /, **kwargs))N)C�rer� r� r4 r� r� rh r] rR �__all__r� r r ru r r r5 r3 r r r r! r� r� rz �compiler� r% r" r r r< r rP r_ rm rq rr rs 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 �__text_signature__r r r r �<module> s� � : � � 62 ;R� > � ) � B<