a XC?hf;�@s�dZddlmZddlmZmZddlmZddl m Z dd�Z dd �Z d d �Z d d �ZdNdd�Zdd�Zdd�Zdd�Ze �e �fdd�ZdOdd�Zdd�Zdd�ZdPdd �Zd!d"�ZdQd#d$�ZdRd%d&�Zd'd(�Zd)d*�Zd+d,�Zd-d.�Zd/d0�Zhd1�Z d2d3�Z!d4a"d5a#d6a$d7a%d8d9�Z&d:d;�Z'dd?�Z)d@dA�Z*dBdC�Z+dDdE�Z,dFdG�Z-ej.ej/hZ0dSdHdI�Z1ej/ej.ej2hZ3dJdK�Z4dTdLdM�Z5dS)Uz1Utility functions, node construction macros, etc.�)�token)�Leaf�Node)�python_symbols)�patcompcCsttj|ttjd�|g�S)N�=)r�symsZargumentrr�EQUAL)�keyword�value�r �7/opt/alt/python39/lib64/python3.9/lib2to3/fixer_util.py� KeywordArgs�rcCs ttjd�S)N�()rr�LPARr r r r �LParensrcCs ttjd�S)N�))rr�RPARr r r r �RParensrcCsHt|t�s|g}t|t�s&d|_|g}ttj|ttjddd�g|�S)zBuild an assignment statement� r��prefix) � isinstance�listrrr�atomrrr )�target�sourcer r r �Assigns  �rNcCsttj||d�S)zReturn a NAME leafr)rr�NAME)�namerr r r �Name$sr cCs|ttjt�|g�gS)zA node tuple for obj.attr)rr�trailer�Dot)�obj�attrr r r �Attr(sr%cCs ttjd�S)z A comma leaf�,)rr�COMMAr r r r �Comma,sr(cCs ttjd�S)zA period (.) leaf�.)rr�DOTr r r r r"0sr"cCs4ttj|��|��g�}|r0|�dttj|��|S)z-A parenthesised argument list, used by Call()r)rrr!�clone� insert_child�arglist)�argsZlparenZrparen�noder r r �ArgList4sr0cCs&ttj|t|�g�}|dur"||_|S)zA function callN)rr�powerr0r)Z func_namer.rr/r r r �Call;sr2cCs ttjd�S)zA newline literal� �rr�NEWLINEr r r r �NewlineBsr6cCs ttjd�S)z A blank line�r4r r r r � BlankLineFsr8cCsttj||d�S)Nr)rr�NUMBER)�nrr r r �NumberJsr;cCs"ttjttjd�|ttjd�g�S)zA numeric or string subscript�[�])rrr!rr�LBRACE�RBRACE)Z index_noder r r � SubscriptMs �r@cCsttj||d�S)z A string leafr)rr�STRING)�stringrr r r �StringSsrCc Cs�d|_d|_d|_ttjd�}d|_ttjd�}d|_||||g}|rtd|_ttjd�}d|_|�ttj||g��ttj|ttj |�g�}ttj ttj d�|ttj d�g�S)zuA list comprehension of the form [xp for fp in it if test]. If test is None, the "if test" part is omitted. r7r�for�in�ifr<r=) rrrr�appendrrZcomp_ifZ listmakerZcomp_forrr>r?) Zxp�fp�it�testZfor_leafZin_leafZ inner_argsZif_leaf�innerr r r �ListCompWs(      ��rLcCsV|D] }|��qttjd�ttj|dd�ttjddd�ttj|�g}ttj|�}|S)zO Return an import statement in the form: from package import name_leafs�fromrr�import)�removerrrrr�import_as_names� import_from)Z package_nameZ name_leafsZleaf�children�impr r r � FromImportos   � rTc Cs�|d��}|jtjkr"|��}nttj|��g�}|d}|rNdd�|D�}ttjtt|d�t|d��ttj|d��||d��g�g|�}|j |_ |S) zfReturns an import statement and calls a method of the module: import module module.name()r#�aftercSsg|] }|���qSr )r+)�.0r:r r r � ��z!ImportAndCall..�rZlparZrpar) r+�typerr-rr1r%r r!r)r/�results�namesr#Z newarglistrU�newr r r � ImportAndCall�s*     �����r^cCs�t|t�r |jt�t�gkr dSt|t�o�t|j�dko�t|jdt�o�t|jdt�o�t|jdt�o�|jdjdko�|jdjdkS)z(Does the node represent a tuple literal?T�rYr�rr)rrrRrr�lenrr �r/r r r �is_tuple�s  ������rccCsXt|t�oVt|j�dkoVt|jdt�oVt|jdt�oV|jdjdkoV|jdjdkS)z'Does the node represent a list literal?rrY�����r<r=)rrrarRrr rbr r r �is_list�s  �����recCsttjt�|t�g�S�N)rrrrrrbr r r � parenthesize�srg> �sum�any�max�tuple� enumerater�sorted�min�all�setccs$t||�}|r |Vt||�}q dS)alFollow an attribute chain. If you have a chain of objects where a.foo -> b, b.foo-> c, etc, use this to iterate over all objects in the chain. Iteration is terminated by getattr(x, attr) is None. Args: obj: the starting object attr: the name of the chaining attribute Yields: Each successive object in the chain. N)�getattr)r#r$�nextr r r � attr_chain�s rszefor_stmt< 'for' any 'in' node=any ':' any* > | comp_for< 'for' any 'in' node=any any* > z� power< ( 'iter' | 'list' | 'tuple' | 'sorted' | 'set' | 'sum' | 'any' | 'all' | 'enumerate' | (any* trailer< '.' 'join' >) ) trailer< '(' node=any ')' > any* > z` power< ( 'sorted' | 'enumerate' ) trailer< '(' arglist ')' > any* > FcCspts&t�t�at�t�at�t�adatttg}t|t|d��D]*\}}i}|�||�r@|d|ur@dSq@dS)a Returns true if node is in an environment where all that is required of it is being iterable (ie, it doesn't matter if it returns a list or an iterator). See test_map_nochange in test_fixers.py for some examples and tests. T�parentr/F) � pats_builtrZcompile_pattern�p0�p1�p2�ziprs�match)r/Zpatterns�patternrtr[r r r �in_special_context�s    r|cCs�|j}|dur|jtjkrdS|j}|jtjtjfvr:dS|jtjkrX|j d|urXdS|jtj ks�|jtj kr�|dur�|jtj ks�|j d|ur�dSdS)zG Check that something isn't an attribute or function name etc. NFrYT) Z prev_siblingrZrr*rtr�funcdef�classdef� expr_stmtrR� parametersZ typedargslistr')r/�prevrtr r r �is_probably_builtin�s&  �� � �r�cCsJ|durF|jtjkr>t|j�dkr>|jd}|jtjkr>|jS|j}qdS)zFind the indentation of *node*.Nr`rr7) rZr�suiterarRr�INDENTr rt)r/�indentr r r �find_indentations  r�cCs>|jtjkr|S|��}|jd}|_ttj|g�}||_|Srf)rZrr�r+rtr)r/rtr�r r r � make_suites r�cCs$|jtjkr |j}|std��q|S)zFind the top level namespace.z,root found before file_input node was found.)rZrZ file_inputrt� ValueErrorrbr r r � find_root&s   r�cCst|t|�|�}t|�S)z� Returns true if name is imported from package at the top level of the tree which node belongs to. To cover the case of an import like 'import foo', use None for the package and 'foo' for the name. )� find_bindingr��bool)�packagerr/Zbindingr r r �does_tree_import/sr�cCs|jtjtjfvS)z0Returns true if the node is an import statement.)rZr� import_namerQrbr r r � is_import7sr�c Cs.dd�}t|�}t|||�r dSd}}t|j�D]F\}}||�sDq2t|j|d��D]\}}||�sVqlqV||}qzq2|dkr�t|j�D]8\}}|jtjkr�|jr�|jdjtjkr�|d}q�q�|dur�t tj t tj d�t tj |dd�g�} nt |t tj |dd�g�} | t�g} |�|t tj| ��dS) z\ Works like `does_tree_import` but adds an import statement if it was not imported. cSs |jtjko|jot|jd�S)NrY)rZr� simple_stmtrRr�rbr r r �is_import_stmt>s �z$touch_import..is_import_stmtNrYrrNrr)r�r�rlrRrZrr�rrArr�rrrTr6r,) r�rr/r��rootZ insert_pos�offset�idxZnode2�import_rRr r r � touch_import;s8 � � r�cCs�|jD�]�}d}|jtjkrVt||jd�r4|St|t|jd�|�}|rR|}�n0|jtjtjfvr�t|t|jd�|�}|r�|}�n�|jtj k�rt|t|jd�|�}|r�|}nTt |jdd��D]@\}}|jt j kr�|j dkr�t|t|j|d�|�}|r�|}q�nx|jtv�r2|jdj |k�r2|}nTt|||��rF|}n@|jtjk�rbt|||�}n$|jtjk�r�t||jd��r�|}|r|�s�|St|�r|SqdS) z� Returns the node which binds variable name, otherwise None. If optional argument package is supplied, only imports will be returned. See test cases for examples.Nrrdr`r_�:�rY)rRrZrZfor_stmt�_findr�r�Zif_stmtZ while_stmtZtry_stmtrlr�COLONr � _def_syms�_is_import_bindingr�rr�)rr/r��childZretr:�iZkidr r r r�isB      r�cCsT|g}|rP|��}|jdkr4|jtvr4|�|j�q|jtjkr|j|kr|SqdS)N�)�poprZ� _block_syms�extendrRrrr )rr/Znodesr r r r��sr�cCs�|jtjkr�|s�|jd}|jtjkrx|jD]H}|jtjkrV|jdj|krt|Sq,|jtjkr,|j|kr,|Sq,nL|jtjkr�|jd}|jtjkr�|j|kr�|Sn|jtjkr�|j|kr�|Sn�|jtj k�r�|r�t |jd�� �|kr�dS|jd}|�rt d|��rdS|jtj k�r0t ||��r0|S|jtjk�rh|jd}|jtjk�r�|j|k�r�|Sn6|jtjk�r�|j|k�r�|S|�r�|jtjk�r�|SdS)z� Will return node if node will import name, or node will import * from package. None is returned otherwise. See test cases for examples. rr`rdNr_�as)rZrr�rRZdotted_as_namesZdotted_as_namer rrrQ�str�stripr�rPZimport_as_name�STAR)r/rr�rSr�Zlastr:r r r r��s@          r�)N)NN)N)N)N)N)N)6�__doc__Zpgen2rZpytreerrZpygramrrr7rrrrrr r%r(r"r0r2r6r8r;r@rCrLrTr^rcrergZconsuming_callsrsrvrwrxrur|r�r�r�r�r�r�r�r~r}r�r�r!r�r�r�r r r r �sX           -  *