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Editing: refactor.cpython-33.pyc
� �� f�m c @ s� d Z d d l m Z d Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l m Z d d l m Z m Z m Z d d l m Z d d l m Z m Z d d l m Z d d l m Z e d d � Z Gd d � d e � Z d d � Z d d � Z d d � Z d d � Z e j! d d f k rpd d l" Z" e" j# Z$ d d � Z% d d � Z& n e# Z$ e Z% e Z& d d � Z' Gd d � d e � Z( Gd! d" � d" e) � Z* Gd# d$ � d$ e � Z+ Gd% d& � d& e* � Z, d S(' u� Refactoring framework. Used as a main program, this can refactor any number of files and/or recursively descend down directories. Imported as a module, this provides infrastructure to write your own refactoring tool. i ( u with_statementu# Guido van Rossum <guido@python.org>N( u chaini ( u driveru tokenizeu token( u find_root( u pytreeu pygram( u btm_utils( u btm_matcherc C s� t | g g d g � } t j j | j � } g } xn t t j | � � D]W } | j d � rI | j d � rI | r� | d d � } n | j | d d � � qI qI W| S( uE Return a sorted list of all available fix names in the given package.u *u fix_u .pyi Ni i����( u __import__u osu pathu dirnameu __file__u sortedu listdiru startswithu endswithu append( u fixer_pkgu remove_prefixu pkgu fixer_diru fix_namesu name( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu get_all_fix_names! s u get_all_fix_namesc B s | Ee Z d Z d S( u _EveryNodeN( u __name__u __module__u __qualname__( u __locals__( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu _EveryNode. s u _EveryNodec C s� t | t j t j f � rC | j d k r3 t � n t | j g � St | t j � rt | j rk t | j � St � n t | t j � r� t � } x5 | j D]* } x! | D] } | j t | � � q� Wq� W| St d | � � d S( uf Accepts a pytree Pattern Node and returns a set of the pattern types which will match first. u$ Oh no! I don't understand pattern %sN( u isinstanceu pytreeu NodePatternu LeafPatternu typeu Noneu _EveryNodeu setu NegatedPatternu contentu _get_head_typesu WildcardPatternu updateu Exception( u patu ru pu x( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu _get_head_types2 s u _get_head_typesc C s t j t � } g } x� | D]� } | j r� y t | j � } Wn t k r_ | j | � Yq� XxU | D] } | | j | � qg Wq | j d k r� | | j j | � q | j | � q Wx: t t j j j � t j j � D] } | | j | � q� Wt | � S( u^ Accepts a list of fixers and returns a dictionary of head node type --> fixer list. N( u collectionsu defaultdictu listu patternu _get_head_typesu _EveryNodeu appendu _accept_typeu Noneu chainu pygramu python_grammaru symbol2numberu valuesu tokensu extendu dict( u fixer_listu head_nodesu everyu fixeru headsu node_type( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu _get_headnode_dictN s" u _get_headnode_dictc s � f d d � t � d � D� S( uN Return the fully qualified names for fixers in the package pkg_name. c s g | ] } � d | � q S( u .( ( u .0u fix_name( u pkg_name( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu <listcomp>k s u+ get_fixers_from_package.<locals>.<listcomp>F( u get_all_fix_namesu False( u pkg_name( ( u pkg_nameu5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu get_fixers_from_packageg s u get_fixers_from_packagec C s | S( N( ( u obj( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu _identityn s u _identityi c C s | j d d � S( Nu u ( u replace( u input( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu _from_system_newlinesu s u _from_system_newlinesc C s* t j d k r" | j d t j � S| Sd S( Nu ( u osu linesepu replace( u input( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu _to_system_newlinesw s u _to_system_newlinesc s� d } t j t j | � j � � � f d d � } t t j t j t j f � } t � } ydx]| � \ } } | | k r� q` q` | t j k r� | r� Pn d } q` | t j k r�| d k r�| � \ } } | t j k s� | d k r� Pn | � \ } } | t j k s| d k rPn | � \ } } | t j k rV| d k rV| � \ } } n xa | t j k r�| j | � | � \ } } | t j k s�| d k r�Pn | � \ } } qYWq` Pq` Wn t k r�Yn Xt | � S( Nc s t � � } | d | d f S( Ni i ( u next( u tok( u gen( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu advance� s u( _detect_future_features.<locals>.advanceu fromu __future__u importu (u ,FT( u Falseu tokenizeu generate_tokensu iou StringIOu readlineu frozensetu tokenu NEWLINEu NLu COMMENTu setu STRINGu Trueu NAMEu OPu addu StopIteration( u sourceu have_docstringu advanceu ignoreu featuresu tpu value( ( u genu5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu _detect_future_features� sD u _detect_future_featuresc B s | Ee Z d Z d Z d S( u FixerErroru A fixer could not be loaded.N( u __name__u __module__u __qualname__u __doc__( u __locals__( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu FixerError� s u FixerErrorc B so | Ee Z d Z i d4 d 6d4 d 6Z d Z d Z d3 d3 d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d4 d4 d d � Z d4 d4 d d � Z d d � Z d4 d4 d d � Z d d � Z d4 d d � Z d d � Z d d � Z d3 d4 d3 d! d" � Z d3 d# d$ � Z d% Z d& Z d' d( � Z d) d* � Z d+ d, � Z d- d. � Z d/ d0 � Z d1 d2 � Z d3 S(5 u RefactoringToolu print_functionu write_unchanged_filesu Fixu fix_c C s� | | _ | p g | _ | j j � | _ | d k rI | j j | � n | j d re t j | _ n t j | _ | j j d � | _ g | _ t j d � | _ g | _ d | _ t j | j d t j d | j �| _ | j � \ | _ | _ g | _ t j � | _ g | _ g | _ x} t! | j | j � D]f } | j" rT| j j# | � q2| | j k rv| j j$ | � q2| | j k r2| j j$ | � q2q2Wt% | j � | _& t% | j � | _' d S( u� Initializer. Args: fixer_names: a list of fixers to import options: an dict with configuration. explicit: a list of fixers to run even if they are explicit. u print_functionu write_unchanged_filesu RefactoringToolu convertu loggerNF(( u fixersu explicitu _default_optionsu copyu optionsu Noneu updateu pygramu! python_grammar_no_print_statementu grammaru python_grammaru getu write_unchanged_filesu errorsu loggingu getLoggeru loggeru fixer_logu Falseu wroteu driveru Driveru pytreeu convertu get_fixersu pre_orderu post_orderu filesu bmu BottomMatcheru BMu bmi_pre_orderu bmi_post_orderu chainu BM_compatibleu add_fixeru appendu _get_headnode_dictu bmi_pre_order_headsu bmi_post_order_heads( u selfu fixer_namesu optionsu explicitu fixer( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu __init__� s< u RefactoringTool.__init__c C s� g } g } x�| j D]�} t | i i d g � } | j d d � d } | j | j � rx | t | j � d � } n | j d � } | j d j d d � | D� � } y t | | � } Wn( t k r� t d | | f � � Yn X| | j | j � } | j r:| j d k r:| | j k r:| j d | � q n | j d | � | j d k ri| j | � q | j d k r�| j | � q t d | j � � q Wt j d � } | j d | � | j d | � | | f S( u Inspects the options to load the requested patterns and handlers. Returns: (pre_order, post_order), where pre_order is the list of fixers that want a pre-order AST traversal, and post_order is the list that want post-order traversal. u *u .i Nu _u c S s g | ] } | j � � q S( ( u title( u .0u p( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu <listcomp>� s u. RefactoringTool.get_fixers.<locals>.<listcomp>u Can't find %s.%su Skipping implicit fixer: %su Adding transformation: %su preu postu Illegal fixer order: %ru run_orderu keyi����T( u fixersu __import__u rsplitu startswithu FILE_PREFIXu lenu splitu CLASS_PREFIXu joinu getattru AttributeErroru FixerErroru optionsu fixer_logu explicitu Trueu log_messageu log_debugu orderu appendu operatoru attrgetteru sort( u selfu pre_order_fixersu post_order_fixersu fix_mod_pathu modu fix_nameu partsu class_nameu fix_classu fixeru key_func( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu get_fixers� s8 # u RefactoringTool.get_fixersc O s � d S( u Called when an error occurs.N( ( u selfu msgu argsu kwds( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu log_error s u RefactoringTool.log_errorc G s' | r | | } n | j j | � d S( u Hook to log a message.N( u loggeru info( u selfu msgu args( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu log_message s u RefactoringTool.log_messagec G s' | r | | } n | j j | � d S( N( u loggeru debug( u selfu msgu args( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu log_debug s u RefactoringTool.log_debugc C s d S( uT Called with the old version, new version, and filename of a refactored file.N( ( u selfu old_textu new_textu filenameu equal( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu print_output! s u RefactoringTool.print_outputc C sP xI | D]A } t j j | � r5 | j | | | � q | j | | | � q Wd S( u) Refactor a list of files and directories.N( u osu pathu isdiru refactor_diru refactor_file( u selfu itemsu writeu doctests_onlyu dir_or_file( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu refactor& s u RefactoringTool.refactorc C s� t j d } x� t j | � D]� \ } } } | j d | � | j � | j � xe | D]] } | j d � rW t j j | � d | k rW t j j | | � } | j | | | � qW qW Wd d � | D� | d d � <q Wd S( u� Descends down a directory and refactor every Python file found. Python files are assumed to have a .py extension. Files and subdirectories starting with '.' are skipped. u pyu Descending into %su .i c S s% g | ] } | j d � s | � q S( u .( u startswith( u .0u dn( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu <listcomp>A s u0 RefactoringTool.refactor_dir.<locals>.<listcomp>N( u osu extsepu walku log_debugu sortu startswithu pathu splitextu joinu refactor_file( u selfu dir_nameu writeu doctests_onlyu py_extu dirpathu dirnamesu filenamesu nameu fullname( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu refactor_dir/ s u RefactoringTool.refactor_dirc C s� y t | d � } Wn< t k rQ } z | j d | | � d SWYd d } ~ Xn Xz t j | j � d } Wd | j � Xt | d d | �� } t | j � � | f SWd QXd S( uG Do our best to decode a Python source file correctly. u rbu Can't open %s: %sNi u ru encoding( NN( u openu IOErroru log_erroru Noneu tokenizeu detect_encodingu readlineu closeu _open_with_encodingu _from_system_newlinesu read( u selfu filenameu fu erru encoding( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu _read_python_sourceC s u# RefactoringTool._read_python_sourcec C s | j | � \ } } | d k r% d S| d 7} | r� | j d | � | j | | � } | j sl | | k r� | j | | | | | � q| j d | � ni | j | | � } | j s� | r� | j r� | j t | � d d � | d | d | �n | j d | � d S( u Refactors a file.Nu u Refactoring doctests in %su No doctest changes in %si u writeu encodingu No changes in %si����( u _read_python_sourceu Noneu log_debugu refactor_docstringu write_unchanged_filesu processed_fileu refactor_stringu was_changedu str( u selfu filenameu writeu doctests_onlyu inputu encodingu outputu tree( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu refactor_fileS s u RefactoringTool.refactor_filec C s� t | � } d | k r* t j | j _ n zb y | j j | � } WnE t k r� } z% | j d | | j j | � d SWYd d } ~ Xn XWd | j | j _ X| | _ | j d | � | j | | � | S( uF Refactor a given input string. Args: data: a string holding the code to be refactored. name: a human-readable name for use in error/log messages. Returns: An AST corresponding to the refactored input stream; None if there were errors during the parse. u print_functionu Can't parse %s: %s: %sNu Refactoring %s( u _detect_future_featuresu pygramu! python_grammar_no_print_statementu driveru grammaru parse_stringu Exceptionu log_erroru __class__u __name__u future_featuresu log_debugu refactor_tree( u selfu datau nameu featuresu treeu err( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu refactor_stringj s u RefactoringTool.refactor_stringc C s� t j j � } | ro | j d � | j | d � } | j sI | | k r_ | j | d | � q� | j d � nS | j | d � } | j s� | r� | j r� | j t | � d | � n | j d � d S( Nu Refactoring doctests in stdinu <stdin>u No doctest changes in stdinu No changes in stdin( u sysu stdinu readu log_debugu refactor_docstringu write_unchanged_filesu processed_fileu refactor_stringu was_changedu str( u selfu doctests_onlyu inputu outputu tree( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu refactor_stdin� s u RefactoringTool.refactor_stdinc C s� x- t | j | j � D] } | j | | � q W| j | j | j � � | j | j | j � � | j j | j � � } x�t | j � � rdx�| j j D]�} | | k r� | | r� | | j d t j j d d � | j r� | | j d t j j � n x\t | | � D]G} | | | k r9| | j | � n y t | � Wn t k r^wYn X| j r}| | j k r}qn | j | � } | r| j | | � } | d k rV| j | � x9 | j � D]+ } | j s�g | _ n | j j | � q�W| j j | j � � } x? | D]4 } | | k r7g | | <n | | j | | � qWqVqqWq� q� Wq} Wx- t | j | j � D] } | j | | � q{W| j S( u� Refactors a parse tree (modifying the tree in place). For compatible patterns the bottom matcher module is used. Otherwise the tree is traversed node-to-node for matches. Args: tree: a pytree.Node instance representing the root of the tree to be refactored. name: a human-readable name for this tree. Returns: True if the tree was modified, False otherwise. u keyu reverseTN(! u chainu pre_orderu post_orderu start_treeu traverse_byu bmi_pre_order_headsu bmi_post_order_headsu BMu runu leavesu anyu valuesu fixersu sortu pytreeu Baseu depthu Trueu keep_line_orderu get_linenou listu removeu find_rootu ValueErroru fixers_appliedu matchu transformu Noneu replaceu appendu extendu finish_treeu was_changed( u selfu treeu nameu fixeru match_setu nodeu resultsu newu new_matchesu fxr( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu refactor_tree� sJ . u RefactoringTool.refactor_treec C s� | s d Sxr | D]j } xa | | j D]R } | j | � } | r% | j | | � } | d k rw | j | � | } qw q% q% Wq Wd S( u Traverse an AST, applying a set of fixers to each node. This is a helper method for refactor_tree(). Args: fixers: a list of fixer instances. traversal: a generator that yields AST nodes. Returns: None N( u typeu matchu transformu Noneu replace( u selfu fixersu traversalu nodeu fixeru resultsu new( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu traverse_by� s u RefactoringTool.traverse_byc C s� | j j | � | d k rB | j | � d } | d k rB d Sn | | k } | j | | | | � | r� | j d | � | j s� d Sn | r� | j | | | | � n | j d | � d S( uR Called when a file has been refactored and there may be changes. i Nu No changes to %su Not writing changes to %s( u filesu appendu Noneu _read_python_sourceu print_outputu log_debugu write_unchanged_filesu write_file( u selfu new_textu filenameu old_textu writeu encodingu equal( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu processed_file� s u RefactoringTool.processed_filec % C s� y t | d d | �} Wn? t j k rZ } z | j d | | � d SWYd d } ~ Xn XzY y | j t | � � Wn; t j k r� } z | j d | | � WYd d } ~ Xn XWd | j � X| j d | � d | _ d S( u� Writes a string to a file. It first shows a unified diff between the old text and the new text, and then rewrites the file; the latter is only done if the write option is set. u wu encodingu Can't create %s: %sNu Can't write %s: %su Wrote changes to %sT( u _open_with_encodingu osu erroru log_erroru writeu _to_system_newlinesu closeu log_debugu Trueu wrote( u selfu new_textu filenameu old_textu encodingu fu err( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu write_file s * u RefactoringTool.write_fileu >>> u ... c C s� g } d } d } d } d } x4| j d d � D] } | d 7} | j � j | j � r� | d k r� | j | j | | | | � � n | } | g } | j | j � } | d | � } q1 | d k r | j | | j � s� | | | j j � d k r | j | � q1 | d k r8| j | j | | | | � � n d } d } | j | � q1 W| d k r�| j | j | | | | � � n d j | � S( u� Refactors a docstring, looking for doctests. This returns a modified version of the input string. It looks for doctests, which start with a ">>>" prompt, and may be continued with "..." prompts, as long as the "..." is indented the same as the ">>>". (Unfortunately we can't use the doctest module's parser, since, like most parsers, it is not geared towards preserving the original source.) i u keependsi Nu u T( u Noneu splitlinesu Trueu lstripu startswithu PS1u extendu refactor_doctestu findu PS2u rstripu appendu join( u selfu inputu filenameu resultu blocku block_linenou indentu linenou lineu i( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu refactor_docstring( s: u" RefactoringTool.refactor_docstringc s� y � j | | � � } Wn� t k r� } zj � j j t j � rp x* | D] } � j d | j d � � qJ Wn � j d | | | j j | � | SWYd d } ~ Xn X� j | | � r�t | � j d d � } | d | d � | | d d � } } | d g | d k s t | � � | d j d � s@| d d 7<n � � j | j d � g } | r�| � � f d d � | D� 7} q�n | S( u� Refactors one doctest. A doctest is given as a block of lines, the first of which starts with ">>>" (possibly indented), while the remaining lines start with "..." (identically indented). u Source: %su u+ Can't parse docstring in %s line %s: %s: %sNu keependsi i c s! g | ] } � � j | � q S( ( u PS2( u .0u line( u indentu self( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu <listcomp>m s u4 RefactoringTool.refactor_doctest.<locals>.<listcomp>Ti����i����( u parse_blocku Exceptionu loggeru isEnabledForu loggingu DEBUGu log_debugu rstripu log_erroru __class__u __name__u refactor_treeu stru splitlinesu Trueu AssertionErroru endswithu PS1u pop( u selfu blocku linenou indentu filenameu treeu erru lineu newu clipped( ( u indentu selfu5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu refactor_doctestS s& )# &u RefactoringTool.refactor_doctestc C s | j r d } n d } | j s4 | j d | � n1 | j d | � x | j D] } | j | � qN W| j r� | j d � x! | j D] } | j | � q� Wn | j rt | j � d k r� | j d � n | j d t | j � � x0 | j D]" \ } } } | j | | | � q� Wn d S( Nu wereu need to beu No files %s modified.u Files that %s modified:u$ Warnings/messages while refactoring:i u There was 1 error:u There were %d errors:( u wroteu filesu log_messageu fixer_logu errorsu len( u selfu wereu fileu messageu msgu argsu kwds( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu summarizep s$ u RefactoringTool.summarizec C s1 | j j | j | | | � � } t � | _ | S( u� Parses a block into a tree. This is necessary to get correct line number / offset information in the parser diagnostics and embedded into the parse tree. ( u driveru parse_tokensu wrap_toksu frozensetu future_features( u selfu blocku linenou indentu tree( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu parse_block� s ! u RefactoringTool.parse_blockc c s� t j | j | | � j � } xe | D]] \ } } \ } } \ } } } | | d 7} | | d 7} | | | | f | | f | f Vq% Wd S( u; Wraps a tokenize stream to systematically modify start/end.i N( u tokenizeu generate_tokensu gen_linesu __next__( u selfu blocku linenou indentu tokensu typeu valueu line0u col0u line1u col1u line_text( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu wrap_toks� s (u RefactoringTool.wrap_toksc c s� | | j } | | j } | } xo | D]g } | j | � rT | t | � d � Vn4 | | j � d k rr d Vn t d | | f � � | } q' Wx d Vq� d S( u� Generates lines as expected by tokenize from a list of lines. This strips the first len(indent + self.PS1) characters off each line. 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