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This reduces significantly the number of candidate nodes.z+George Boutsioukis N) defaultdict)pytree) reduce_treec@s eZdZdZeZddZdS)BMNodez?Class for a node of the Aho-Corasick automaton used in matchingcCs"i|_g|_ttj|_d|_dS)N)transition_tablefixersnextrcountidcontentselfr2/opt/python39/lib/python3.9/lib2to3/btm_matcher.py__init__s zBMNode.__init__N)__name__ __module__ __qualname____doc__ itertoolsr rrrrrrsrc@s8eZdZdZddZddZddZdd Zd d Zd S) BottomMatcherzgThe main matcher class. After instantiating the patterns should be added using the add_fixer methodcCs0t|_t|_|jg|_g|_td|_dS)NZRefactoringTool) setmatchrrootZnodesr logging getLoggerloggerrrrrrs  zBottomMatcher.__init__cCsH|j|t|j}|}|j||jd}|D]}|j|q2dS)zReduces a fixer's pattern tree to a linear path and adds it to the matcher(a common Aho-Corasick automaton). 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