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dataclasses.cpython-37.pyc
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It is an error to specify both default and default_factory. z/cannot specify both default and default_factory)r � ValueErrorr )r! r" r% r# r$ r& r' r r r r 5 s c s( |sdS dd� � fdd�|D ��� d�S )Nz()�(�,c s g | ]}� � d |j � ��qS )�.)r )�.0�f)�obj_namer r � <listcomp>T s z _tuple_str.<locals>.<listcomp>z,))�join)r= r r )r= r � _tuple_strK s r@ c s" t � � t���� �fdd��}|S )Nc sD t | �t�� f}|� kr dS � �|� z �| �}W d � �|� X |S )Nz...)�id�_thread� get_ident�add�discard)r �key�result)� repr_running� user_functionr r �wrapper^ s z _recursive_repr.<locals>.wrapper)�set� functools�wraps)rI rJ r )rH rI r �_recursive_reprY s rN )�globals�locals� return_typec C s� |d kr i }d|kr t |d< d}|tk r4||d< d}d�|�}d�dd� |D ��}d | � d |� d |� d |� �}d �|�� �}d|� d|� d| � �}i } t||| � | d f |�S )NZBUILTINS� Z _return_typez->_return_typer9 � c s s | ]}d |� �V qdS )z Nr )r; �br r r � <genexpr>z s z _create_fn.<locals>.<genexpr>z def r8 r, z: z, zdef __create_fn__(z): z return Z __create_fn__)�builtinsr r? �keys�exec) r �argsZbodyrO rP rQ Zreturn_annotationZtxtZ local_vars�nsr r r � _create_fnl s r[ c C s0 | r d|� d|�d|� d�S |� d|� d|� �S )Nz BUILTINS.object.__setattr__(r9 r, r: �=r )r6 r �value� self_namer r r � _field_assign� s r_ c C s� d| j � �}| jtk rV| jr@| j||< |� d| j � d| j � �}q�| j||< |� d�}n8| jr�| jtkrn| j }q�| jtk r�| j||< | j }nd S | jtkr�d S t|| j ||�S )NZ_dflt_z() if z is _HAS_DEFAULT_FACTORY else z())r r" r r% r! r( r r_ )r< r6 rO r^ Z default_namer] r r r � _field_init� s" r` c C sV | j tkr| jtkrd}n&| j tk r2d| j� �}n| jtk r@d}| j� d| j� |� �S )NrR z=_dflt_z=_HAS_DEFAULT_FACTORYz:_type_)r! r r" r )r< r! r r r � _init_param� s ra c C s� d}xB| D ]:}|j r |jtkr(|jtks.d}q |r td|j�d���q W dd� | D �}|�ttd�� g }x(| D ] }t||||�} | rp|� | � qpW |r�d� d d � | D ��} |� |� d t � d | � d �� |s�dg}t d|gdd� | D � |||d d�S )NFTznon-default argument z follows default argumentc S s i | ]}|j d |j� ��qS )Z_type_)r r )r; r< r r r � <dictcomp>� s z _init_fn.<locals>.<dictcomp>)r �_HAS_DEFAULT_FACTORYr9 c s s | ]}|j tkr|jV qd S )N)r( r r )r; r< r r r rU � s z_init_fn.<locals>.<genexpr>r: r8 r, �passr c S s g | ]}|j rt|��qS r )r% ra )r; r< r r r r> s z _init_fn.<locals>.<listcomp>)rP rO rQ ) r% r! r r" � TypeErrorr �updaterc r` �appendr? �_POST_INIT_NAMEr[ ) r r6 � has_post_initr^ rO Z seen_defaultr< rP Z body_lines�lineZ params_strr r r �_init_fn� s6 rk c C s2 t dddd�dd� | D �� d g|d�}t|�S ) Nr )r z(return self.__class__.__qualname__ + f"(z, c S s g | ]}|j � d |j � d��qS )z={self.z!r})r )r; r< r r r r> s z _repr_fn.<locals>.<listcomp>z)")rO )r[ r? rN )r rO �fnr r r �_repr_fn s rm c C sp | t d�}|r,dd�dd� |D �� d }nd}tdd d |� d �d d f||d�tddd |� d �ddf||d�fS )N)�clsr r8 r9 c s s | ]}t |j�V qd S )N)r# r )r; r< r r r rU s z'_frozen_get_del_attr.<locals>.<genexpr>z,)z()� __setattr__)r r r] z if type(self) is cls or name in �:z> raise FrozenInstanceError(f"cannot assign to field {name!r}")z)super(cls, self).__setattr__(name, value))rP rO � __delattr__)r r z; raise FrozenInstanceError(f"cannot delete field {name!r}")z"super(cls, self).__delattr__(name))r r? r[ )rn r rO rP Z fields_strr r r �_frozen_get_del_attr s& rr c C s$ t | ddd|� |� |� �dg|d�S )N)r �otherz%if other.__class__ is self.__class__:z return zreturn NotImplemented)rO )r[ )r �op� self_tuple� other_tuplerO r r r �_cmp_fn2 s rw c C s$ t d| �}tddd|� d�g|d�S )Nr �__hash__)r z return hash(r, )rO )r@ r[ )r rO ru r r r �_hash_fn@ s ry c C s$ | |j kp"t| �|jko"| j|j kS )N)�ClassVarr Z _GenericAliasZ __origin__)�a_type�typingr r r � _is_classvarH s r} c C s | |j kS )N)r )r{ � dataclassesr r r � _is_initvarP s r c C s� t �| �}|r�d }|�d�}|s2tj�|j�j}n2tj�|j�}|rd|j�|�|krdtj�|j�j}|r�||�|�d��|�r�dS dS )N� � TF)�_MODULE_IDENTIFIER_RE�match�group�sys�modules�getr �__dict__) Z annotationrn Za_moduler{ Zis_type_predicater� rZ Z module_name�moduler r r �_is_typeV 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 kr�t j t }t||�s�t|jt�r�t|j| ||jt�r�t|_ |j ttfkr�|jtk r�td|j� d���|j t k�r4t|jttt f��r4t dt|j�� d|j� d���|S )N)r! r| zfield z cannot have a default factoryzmutable default z for field z$ is not allowed: use default_factory) r. r � isinstancer r* �MemberDescriptorTyper r r r r( r� r� r� r} �strr� rz r r r r r r" re r! �list�dictrK r7 )rn Za_namer{ r! r< r| r~ r r r � _get_field� s: r� c C s || j krdS t| ||� dS )NTF)r� �setattr)rn r r] r r r �_set_new_attribute� s r� c C s d S )Nr )rn r rO 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 )N)r$ r& )r; r< r r r r> � s z _hash_add.<locals>.<listcomp>)ry )rn r rO �fldsr r r � _hash_add� s r� c C s t d| j� ���d S )Nz-Cannot overwrite attribute __hash__ in class )re r )rn r rO 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} xX� jddd� D ]D} t| t d �} | rXd} x| � � D ]} | || j < qzW t| t�j rXd} qXW � j� di �}� fdd�|�� D �}xT|D ]L} | || j < tt� | j d �t�r�| jtk�rt� | j � q�t� | j | j� q�W x<� j�� D ].\}}t|t��r&||k�r&t|�d����q&W | �r�| �rr|�srtd ��| �s�|�r�td ��t� t |� � j� d t�}|tk�p�|d k�o�d � jk }|�r�|�s�td ��|�r t� t�}dd� |� � D �}t� dt|||d|k�rdnd|�� dd� |� � D �}|�rTdd� |D �}t� dt||�� |�r�dd� |D �}td|�}td|�}t� d t d d|||d�� |�rdd� |D �}td|�}td|�}xFdD ]>\}}t� |t |||||d���r�td|� d � j � d ����q�W |�rLx>t � ||�D ].}t� |j |��rtd|j � d � j � ����qW t t |�t |�t |�|f }|�r||� ||�� _!t� d ��s�� j t"t#�$� ���%d d � � _&� S )!NF���r T�__annotations__c s g | ]\}}t � ||��qS r )r� )r; r r )rn r r r> Q 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 onerx �__eq__z eq must be true if order is truec S s g | ]}|j ttfkr|�qS r )r( r r )r; r< r r r r> � s r r Z__dataclass_self__c S s g | ]}|j tkr|�qS r )r( r )r; r< r r r r> � s c S s g | ]}|j r|�qS r )r# )r; r< r r r r> � s r c S s g | ]}|j r|�qS r )r& )r; r< r r r r> � s rs z==)rO c S s g | ]}|j r|�qS r )r& )r; r< r r r r> � s ))�__lt__�<)�__le__z<=)�__gt__�>)�__ge__z>=zCannot overwrite attribute z in class z). Consider using functools.total_ordering�__doc__z -> NonerR )'r r� r� r� r� �_PARAMSr2 �__mro__r. �_FIELDS�valuesr r6 r� �itemsr� r r! r �delattrre r7 �hasattrrh r� rk rm r@ rw r rr � _hash_action�boolrx r� �inspectZ signaturer r� ) rn r% r# r3 r4 r5 r6 r rO Zany_frozen_baseZhas_dataclass_basesrT Z base_fieldsr< Zcls_annotationsZ cls_fieldsr r] Z class_hashZhas_explicit_hashri r� Z field_listru rv rt rl Z hash_actionr )rn r �_process_class s� r� F)r% r# r3 r4 r5 r6 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 )N)r� )rn )r3 r6 r% r4 r# r5 r r �wrap� s zdataclass.<locals>.wrapNr )�_clsr% r# r3 r4 r5 r6 r� r )r3 r6 r% r4 r# r5 r r � s c C sB yt | 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 )N)r( r )r; r< r r r rU s zfields.<locals>.<genexpr>)r. r� �AttributeErrorre �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� rn 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� re � _asdict_inner)r� r� r r r r s c s� t | �rHg }x2t| �D ]&}tt| |j�� �}|�|j|f� qW � |�S t| t�rvt| d�rvt | �� 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� )r; �v)r� r r r> F s z!_asdict_inner.<locals>.<listcomp>c 3 s | ]}t |� �V qd S )N)r� )r; r� )r� r r rU K s z _asdict_inner.<locals>.<genexpr>c 3 s& | ] \}}t |� �t |� �fV qd S )N)r� )r; �kr� )r� r r rU M s )r� r r� r. r rg r� r� r� r r� r� r� �copy�deepcopy)r� r� rG r< r] r )r� r r� + 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� re �_astuple_inner)r� r� r r r r T s c s� t | �rBg }x,t| �D ] }tt| |j�� �}|�|� qW � |�S t| t�rpt| d�rpt | �� 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 r r> z s z"_astuple_inner.<locals>.<listcomp>c 3 s | ]}t |� �V qd S )N)r� )r; r� )r� r r rU s z!_astuple_inner.<locals>.<genexpr>c 3 s& | ] \}}t |� �t |� �fV qd S )N)r� )r; r� r� )r� r r rU � s )r� r r� r. r rg r� r� r� r r� r� r� r� r� )r� r� rG r< r] r )r� r r� l s r� r )�bases� namespacer% r# r3 r4 r5 r6 c s � dkri � n� � � � t� } i } x�|D ]�} t| t�r>| } d}nDt| �dkrT| \} }n.t| �dkrt| \} }}|� | < ntd| ����t| t�r�| �� s�td| ����t�| �r�td| ����| | kr�td| ����| � | � || | < q&W | � 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 )N)rf )rZ )r� r r �<lambda>� � z make_dataclass.<locals>.<lambda>)r% r# r3 r4 r5 r6 ) r� rK r� r� �lenre � isidentifier�keyword� iskeywordrD r* � new_classr )Zcls_namer r� r� r% r# r3 r4 r5 r6 �seenZanns�itemr �tp�specrn r )r� r r � s6 c O s� t | �dkr tdt | �� d���| r,| \}n d|kr@|�d�}ntd��t|�sXtd��x~t|t��� D ]l}|jtkrxqh|j s�|j |krht d|j � d���qh|j |krh|jt kr�t d |j �d ���t||j �||j < qhW |j f |�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� z7replace() missing 1 required positional argument: 'obj'z1replace() should be called on dataclass instanceszfield zC is declared with init=False, it cannot be specified with replace()zInitVar z! must be specified with replace())r� re �popr� r. r� r� r( r r% r r7 r � __class__)rY Zchangesr� r< r r r r � s* )N)B�rer� r� r* r� r� rV rL rB �__all__r� r r rc r r r+ r) r r r r r� r� rh �compiler� r r r r r2 r r@ rN r[ r_ r` ra rk rm rr rw ry 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 A )@
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