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unless implementsOnly was used.
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@implementer(I1)
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are overridden.
This function is provided for convenience. It provides a more
convenient way to call `classImplementsOnly`. For example::
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class C(object): pass
is equivalent to calling::
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declared.
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unless `implementsOnly` was used.
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are overridden.
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implementsOnly(I1)
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Tc G s� t | dd�}|dk r6t |dd�|kr6t| t�s6td��t|�}|dkrNt| �}d}tD ]}t||�rVd} qnqV|r�t| |f|�� | _nt |f|�� | _dS )aY Declare interfaces declared directly for an object
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r� c G s t | t| �f|�� dS )aZ Declare interfaces declared directly for an object
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N)r� �directlyProvidedBy)r� r r r r � alsoProvides[ s r� c C s( t | t| �| � |�| �r$td��dS )z; Removes a directly provided interface from an object.
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zClassProvides.__init__c C s | j | jfS r )rS r� r" r r r r= � s zClassProvides.__reduce__N)r r r r3 r r= r� r� r r r r r_ � s r_ c C s4 t | dd�}|dks t|t�r"tS t|jdd� �S )z�Return the interfaces directly provided by the given object
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rR Nr> )r@ rX r5 rW r rY )r� �providesr r r r� � s �r� c G sf t rttd ��t�d�}|j}||jks2d|kr:td��d|krJtd��t| �|d< tt dd� d S )
a� Declare interfaces provided directly by a class
This function is called in a class definition.
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are used to create the class's direct-object interface specification.
An error will be raised if the module class has an direct interface
specification. In other words, it is an error to call this function more
than once in a class definition.
Note that the given interfaces have nothing to do with the interfaces
implemented by instances of the class.
This function is provided for convenience. It provides a more convenient
way to call `directlyProvides` for a class. For example::
classProvides(I1)
is equivalent to calling::
directlyProvides(theclass, I1)
after the class has been created.
�providerr. r z7classProvides can be used only from a class definition.rR z:classProvides can only be used once in a class definition.ro rq N)
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� r� c C s | j d }| `t| f|�� | S r� )rT rR r� )r8 r r r r r� � s
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|| _ d S r r! r r r r r � s zprovider.__init__c C s t |f| j�� |S r )r� r r r r r r � s zprovider.__call__Nrl r r r r r� � s r� c G sT t �d�}|j}||jk s"d|kr*td��d|kr:td��ttft| ��� |d< dS )a Declare interfaces provided by a module
This function is used in a module definition.
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(`~zope.interface.interfaces.IDeclaration` objects).
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used to create the module's direct-object interface specification. An
error will be raised if the module already has an interface specification.
In other words, it is an error to call this function more than once in a
module definition.
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way to call directlyProvides. For example::
moduleImplements(I1)
is equivalent to::
directlyProvides(sys.modules[__name__], I1)
r. r z9moduleProvides can only be used from a module definition.rR z<moduleProvides can only be used once in a module definition.N)rr rs rt ru r[ r| r r r� r r r �moduleProvides� s
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t || �S )zfProvide object specifications
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r� c @ s e Zd ZdZdd� ZdS )�%ObjectSpecificationDescriptorFallbackz�Implement the `__providedBy__` attribute
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NrR )r� r@ r; )r r9 r8 r� r r r r� o s z-ObjectSpecificationDescriptorFallback.__get__N)r r r r3 r� r r r r r� h s r� c C sJ |dkr g }| j }t|jks&t|jkr2|�| � n| D ]}t||� q6|S )z�Normalize declaration arguments
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N)rS r �__mro__r5 r/ r )Zsequence�outputr8 �vr r r r s r rP )r� )r� )� ObjectSpecificationDescriptor)N)Br3 Z
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