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e f d � � YZ d � Z d � Z d � Z d � Z e j! d d f k r[d d l" Z" e" j# Z$ d � Z% d � Z& n e# Z$ e Z% e Z& d � Z' d e f d � � YZ( d e) f d � � YZ* d e f d � � YZ+ d e* f d � � YZ, d S( s� 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����( t with_statements# Guido van Rossum <guido@python.org>N( t chaini ( t drivert tokenizet token( t find_root( t pytreet pygram( t btm_utils( t btm_matcherc C� s� t | g g d g � } t j j | j � } g } xb t t j | � � D]K } | j d � rI | j d � rI | r� | d } n | j | d � qI qI W| S( sE Return a sorted list of all available fix names in the given package.t *t fix_s .pyi i����(
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__import__t ost patht dirnamet __file__t sortedt listdirt
startswitht endswitht append( t fixer_pkgt
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d | � � d S( sf Accepts a pytree Pattern Node and returns a set
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isinstanceR t NodePatternt LeafPatternt typet NoneR t sett NegatedPatternt contentt _get_head_typest WildcardPatternt updatet Exception( t patt rt pt x( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR( 2 s
c C� s t j t � } g } x� | D]� } | j r� y t | j � } Wn t k
r^ | j | � q� XxU | D] } | | j | � qf Wq | j d k r� | | j j | � q | j | � q Wx: t t
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j j � D] } | | j | � q� Wt | � S( s^ Accepts a list of fixers and returns a dictionary
of head node type --> fixer list. N( t collectionst defaultdictt listt patternR( R R t _accept_typeR$ R R t python_grammart
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Return the fully qualified names for fixers in the package pkg_name.
t .( R t False( t pkg_namet fix_name( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyt get_fixers_from_packageg s c C� s | S( N( ( t obj( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyt _identityn s i i c C� s | j d d � S( Nu
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t j d � | _ g | _ t | _ 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( s� 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.
Ri Rj Rh t convertt loggerN(( t fixerst explicitt _default_optionst copyt optionsR$ R* R t! python_grammar_no_print_statementt grammarR5 t getRj t errorst loggingt getLoggerRm t fixer_logRC t wroteR t DriverR Rl t
get_fixerst pre_ordert
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c C� s� g } g } x�| j D]�} t | i i d g � } | j d d � d } | j | j � rr | t | j � } n | j d � } | j d j g | D] } | j � ^ q� � } y t
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� } | j d | � | j d | � | | f S( s 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.
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RB i i����t _t s Can't find %s.%ss Skipping implicit fixer: %ss Adding transformation: %st pret posts Illegal fixer order: %rt run_ordert key( Rn R t rsplitR t FILE_PREFIXt lent splitt CLASS_PREFIXt joint titlet getattrt AttributeErrorRf Rr Ry Ro RY t log_messaget log_debugt orderR t operatort
attrgettert sort( R� t pre_order_fixerst post_order_fixerst fix_mod_patht modRE t partsR. t
class_namet fix_classR> t key_func( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR| � s8 /
c O� s � d S( s Called when an error occurs.N( ( R� t msgt argst kwds( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyt log_error s c G� s' | r | | } n | j j | � d S( s Hook to log a message.N( Rm t info( R� R� R� ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR� s
c G� s' | r | | } n | j j | � d S( N( Rm t debug( R� R� R� ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR� s
c C� s d S( sT Called with the old version, new version, and filename of a
refactored file.N( ( R� t old_textt new_textt filenamet equal( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyt print_output! s c C� sP xI | D]A } t j j | � r5 | j | | | � q | j | | | � q Wd S( s) Refactor a list of files and directories.N( R
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doctests_onlyt dir_or_file( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyt refactor& s
c 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 Wg | D] }
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j d � s� |
^ q� | (q Wd S( s� 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.
t pys Descending into %sRB i N(
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t extsept walkR� R� R R t splitextR� R� ( R� t dir_nameR� R� t py_extt dirpatht dirnamest filenamesR t fullnamet dn( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR� / s
c C� s� y t | d � } Wn' t k
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Do our best to decode a Python source file correctly.
t rbs Can't open %s: %si NR- t encoding( NN( t opent IOErrorR� R$ R t detect_encodingRT t closet _open_with_encodingRK t read( R� R� t ft errR� ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyt _read_python_sourceC s c C� s | j | � \ } } | d k r% d S| d 7} | r� | j d | � | j | | � } | j sl | | k r� | j | | | | | � q� | j d | � nc | j | | � } | j s� | r� | j r� | j t | � d | d | d | �n | j d | � d S( s Refactors a file.Nu
s Refactoring doctests in %ss No doctest changes in %si����R� R� s No changes in %s( R� R$ R� t refactor_docstringRj t processed_filet refactor_stringt was_changedt unicode( R� R� R� R� RJ R� t outputt tree( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR� S s
c C� s� t | � } d | k r* t j | j _ n zM y | j j | � } Wn0 t k
ru } | j d | | j j | � d SXWd | j | j _ X| | _
| j d | � | j | | � | S( sF 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.
Ri s Can't parse %s: %s: %sNs Refactoring %s(
Re R Rs R Rt t parse_stringR+ R� t __class__R t future_featuresR� t
refactor_tree( R� t dataR Rb R� R� ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR� j s c 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( Ns Refactoring doctests in stdins <stdin>s No doctest changes in stdins No changes in stdin(
t syst stdinR� R� R� Rj R� R� R� R� ( R� R� RJ R� R� ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyt refactor_stdin� s
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C� s� x- t | j | j � D] } | j | | � q W| j | j | j � � | j | j | j � � | j j | j � � } x�t
| j � � rcx�| j j D]�} | | k r� | | r� | | j
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r]qn X| j r|| | j k r|qn | j | � } | r| j | | � } | d k rU| j | � x9 | j � D]+ } | j s�g | _ n | j j | � q�W| j j | j � � } x? | D]4 } | | k r6g | | <n | | j | | � qWqUqqWq� q� Wq} Wx- t | j | j � D] } | j | | � qzW| j S( s� 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.
R� t reverseN(! R R} R~ t
start_treet traverse_byR� R� R� t runt leavest anyt valuesRn R� R t Baset depthRY t keep_line_ordert
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R� R� R R> t match_sett nodet resultst newt new_matchest fxr( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR� � sJ
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d Sxr | D]j } xa | | j D]R } | j | � } | r% | j | | � } | d k rw | j | � | } qw q% q% Wq Wd S( s 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( R# R� R� R$ RI ( R� Rn t traversalR� R> R� R� ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR� � s
c 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( sR
Called when a file has been refactored and there may be changes.
i Ns No changes to %ss Not writing changes to %s( R R R$ R� R� R� Rj t
write_file( R� R� R� R� R� R� R� ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR� � s c C� s� y t | d d | �} Wn* t j k
rE } | j d | | � d SXzG y | j t | � � Wn) t j k
r� } | j d | | � n XWd | j � X| j d | � t | _ d S( s� 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.
t wR� s Can't create %s: %sNs Can't write %s: %ss Wrote changes to %s(
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t errorR� R� RM R� R� RY Rz ( R� R� R� R� R� R� R� ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR� s s >>> s ... c
C� s� g } d } d } d } d } x+| j t � D]} | d 7} | j � j | j � r� | d k r� | j | j | | | | � � n | } | g } | j | j � } | | } q. | d k r| j | | j � s� | | | j j
� d k r| j | � q. | d k r/| j | j | | | | � � n d } d } | j | � q. W| d k rz| j | j | | | | � � n d j | � S( s� 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.)
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splitlinesRY t lstripR t PS1R9 t refactor_doctestt findt PS2t rstripR R� (
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r� } | j j t j � rm x* | D] } | j d | j d � � qG Wn | j d | | | j j
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t � } | | d | | d } } | d j d � s� | d c d 7<n | | j | j d � g } | rL| g | D] } | | j | ^ q(7} qLn | S( s� 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).
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need to bes No files %s modified.s Files that %s modified:s$ Warnings/messages while refactoring:i s There was 1 error:s There were %d errors:( Rz R R� Ry Rv R� ( R� R t filet messageR� R� R� ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyt summarizep s$
c C� s1 | j j | j | | | � � } t � | _ | S( s� Parses a block into a tree.
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in the parser diagnostics and embedded into the parse tree.
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f | f Vq% Wd S( s; Wraps a tokenize stream to systematically modify start/end.i N( R RR t gen_linesRN ( R� R R R R8 R# Rd t line0t col0t line1t col1t line_text( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR � s
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This strips the first len(indent + self.PS1) characters off each line.
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s line=%r, prefix=%rR� N( R� R R R� R t AssertionErrorRY ( R� R R t prefix1t prefix2t prefixR ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR � s
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