U
    
HaT                     @   s   G d d de ZdS )c                   @   sH   e Zd ZdZdd Zdd Zdd Zdd	 Zd
d Zdd Z	dd Z
dS )BaseReporterz?Delegate class to provider progress reporting for the resolver.c                 C   s   dS )z-Called before the resolution actually starts.N )selfr   r   D/tmp/pip-unpacked-wheel-tx790h60/pip/_vendor/resolvelib/reporters.pystarting   s    zBaseReporter.startingc                 C   s   dS )zYCalled before each round of resolution starts.

        The index is zero-based.
        Nr   )r   indexr   r   r   starting_round   s    zBaseReporter.starting_roundc                 C   s   dS )zCalled before each round of resolution ends.

        This is NOT called if the resolution ends at this round. Use `ending`
        if you want to report finalization. The index is zero-based.
        Nr   )r   r   stater   r   r   ending_round   s    zBaseReporter.ending_roundc                 C   s   dS )z/Called before the resolution ends successfully.Nr   )r   r   r   r   r   ending   s    zBaseReporter.endingc                 C   s   dS )a  Called when adding a new requirement into the resolve criteria.

        :param requirement: The additional requirement to be applied to filter
            the available candidaites.
        :param parent: The candidate that requires ``requirement`` as a
            dependency, or None if ``requirement`` is one of the root
            requirements passed in from ``Resolver.resolve()``.
        Nr   )r   requirementparentr   r   r   adding_requirement   s    zBaseReporter.adding_requirementc                 C   s   dS )z6Called when rejecting a candidate during backtracking.Nr   r   	candidater   r   r   backtracking!   s    zBaseReporter.backtrackingc                 C   s   dS )z9Called when adding a candidate to the potential solution.Nr   r   r   r   r   pinning$   s    zBaseReporter.pinningN)__name__
__module____qualname____doc__r   r   r	   r
   r   r   r   r   r   r   r   r      s   
r   N)objectr   r   r   r   r   <module>       