/usr/lib64/python3.9/lib2to3/__pycache__
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btm_matcher.cpython-39.opt-1.pyc48770644editdlrm
btm_matcher.cpython-39.opt-2.pyc33060644editdlrm
btm_matcher.cpython-39.pyc48770644editdlrm
btm_utils.cpython-39.opt-1.pyc61480644editdlrm
btm_utils.cpython-39.opt-2.pyc46360644editdlrm
btm_utils.cpython-39.pyc61480644editdlrm
fixer_base.cpython-39.opt-1.pyc62550644editdlrm
fixer_base.cpython-39.opt-2.pyc35040644editdlrm
fixer_base.cpython-39.pyc62550644editdlrm
fixer_util.cpython-39.opt-1.pyc121700644editdlrm
fixer_util.cpython-39.opt-2.pyc100070644editdlrm
fixer_util.cpython-39.pyc121700644editdlrm
main.cpython-39.opt-1.pyc86710644editdlrm
main.cpython-39.opt-2.pyc69180644editdlrm
main.cpython-39.pyc86890644editdlrm
patcomp.cpython-39.opt-1.pyc53890644editdlrm
patcomp.cpython-39.opt-2.pyc48810644editdlrm
patcomp.cpython-39.pyc56050644editdlrm
pygram.cpython-39.opt-1.pyc12620644editdlrm
pygram.cpython-39.opt-2.pyc10570644editdlrm
pygram.cpython-39.pyc12620644editdlrm
pytree.cpython-39.opt-1.pyc236720644editdlrm
pytree.cpython-39.opt-2.pyc149690644editdlrm
pytree.cpython-39.pyc242950644editdlrm
refactor.cpython-39.opt-1.pyc206130644editdlrm
refactor.cpython-39.opt-2.pyc165670644editdlrm
refactor.cpython-39.pyc206430644editdlrm
__init__.cpython-39.opt-1.pyc3020644editdlrm
__init__.cpython-39.opt-2.pyc3020644editdlrm
__init__.cpython-39.pyc3020644editdlrm
__main__.cpython-39.opt-1.pyc2150644editdlrm
__main__.cpython-39.opt-2.pyc2150644editdlrm
__main__.cpython-39.pyc2150644editdlrm
Edit: /usr/lib64/python3.9/lib2to3/__pycache__/btm_matcher.cpython-39.opt-1.pyc (4877B)
a i@sldZdZddlZddlZddlmZddlmZddlm Z Gdd d e Z Gd d d e Z ia d d ZdS)aA bottom-up tree matching algorithm implementation meant to speed up 2to3's matching process. After the tree patterns are reduced to their rarest linear path, a linear Aho-Corasick automaton is created. The linear automaton traverses the linear paths from the leaves to the root of the AST and returns a set of nodes for further matching. 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_tablefixersnextrcountidcontentselfr+/usr/lib64/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). The fixer is appended on the matching states and called when they are reachedstartN)r appendrZ pattern_treeZget_linear_subpatternaddr)rfixerZtreeZlinear match_nodesZ match_noderrr add_fixer%s   zBottomMatcher.add_fixerc Cs|s |gSt|dtr`g}|dD]6}|j||d}|D]}|||dd|q:q$|S|d|jvrt}||j|d<n|j|d}|ddr|j|dd|d}n|g}|SdS)z5Recursively adds a linear pattern to the AC automatonrrrN) isinstancetupler"extendrr)rpatternr r$ alternativeZ end_nodesendZ next_noderrrr"1s"  zBottomMatcher.addc Cs|j}tt}|D]}|}|rd|_|jD]$}t|tjr*|jdkr*d|_qPq*|j dkrb|j}n|j }||j vr|j |}|j D]}|| |qnH|j}|j dur|j jrq||j vr|j |}|j D]}|| |q|j }qq|S)auThe main interface with the bottom matcher. The tree is traversed from the bottom using the constructed automaton. Nodes are only checked once as the tree is retraversed. When the automaton fails, we give it one more shot(in case the above tree matches as a whole with the rejected leaf), then we break for the next leaf. There is the special case of multiple arguments(see code comments) where we recheck the nodes Args: The leaves of the AST tree to be matched Returns: A dictionary of node matches with fixers as the keys T;FrN)rrlistZ was_checkedZchildrenr&rZLeafvaluetyperr r!parent) rZleavesZcurrent_ac_noderesultsZleafZcurrent_ast_nodechildZ node_tokenr#rrrrunSs8          zBottomMatcher.runcs*tdfdd|jtddS)z %d [label=%s] //%sr)rkeysprintr type_reprstrr r )ZnodeZ subnode_keyZsubnode print_noderrr9s  z*BottomMatcher.print_ac..print_node}N)r5rrrr8rprint_acs  zBottomMatcher.print_acN) rrrrrr%r"r3r;rrrrrs  "8rcCsDts8ddlm}|jD]\}}t|tkr|t|<qt||S)Nr)python_symbols) _type_reprsZpygramr<__dict__itemsr/int setdefault)Ztype_numr<namevalrrrr6s  r6)r __author__rr collectionsrrrZ btm_utilsrobjectrrr=r6rrrrs