U
    ¸~HjZ  ã                   @   s<   d Z ddlmZ ddlmZ ddlmZ eedœdd„Zd	S )
z
Logging utilities.
é    )ÚListé   )ÚLogTrace)ÚLogger)ÚtraceÚreturnc                 C   sª   t tdœdd„}g }g }| D ]‚\}}|r4|d |k	rv||krT|d |k	rv| ¡  q<n"|sl| ||ƒ› d�¡ | |¡ | dt|ƒ ¡ | d||ƒ› d�¡ qd |¡S )	ay  
    Format a trace (that is, the contents of the C{log_trace} key of a log
    event) as a visual indication of the message's propagation through various
    observers.

    @param trace: the contents of the C{log_trace} key from an event.

    @return: A multi-line string with indentation and arrows indicating the
        flow of the message through various observers.
    )Úobjr   c                 S   s&   t | dƒr| › d| j› d�S | › S d S )NÚnamez (ú))Úhasattrr	   )r   © r   ú8/tmp/pip-unpacked-wheel-ewod1tgb/twisted/logger/_util.pyÚformatWithName   s    
z#formatTrace.<locals>.formatWithNameéÿÿÿÿÚ
z  z-> Ú )ÚobjectÚstrÚpopÚappendÚlenÚjoin)r   r   ÚresultZlineageÚparentÚchildr   r   r   ÚformatTrace   s    
r   N)	Ú__doc__Útypingr   Z_interfacesr   Z_loggerr   r   r   r   r   r   r   Ú<module>   s   