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{ fc @ 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
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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 sz t | g g d g } g } xU t j | j D]A \ } } } | j d r1 | rb | d } n | j | q1 q1 W| S( sE Return a sorted list of all available fix names in the given package.t *t fix_i ( t
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d | d S( sf Accepts a pytree Pattern Node and returns a set
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Return the fully qualified names for fixers in the package pkg_name.
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FixerErrorc B s e Z d Z RS( s A fixer could not be loaded.( R R t __doc__( ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyRd s t RefactoringToolc B s! e Z i e d 6e d 6Z d Z d Z d d d Z d Z d Z d Z
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Z d Z e d Z d Z d Z d e d d Z d d Z d Z d Z d Z d Z d Z d Z d Z d Z RS( t print_functiont write_unchanged_filest FixR 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 | _ 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: a dict with configuration.
explicit: a list of fixers to run even if they are explicit.
Rg Rh Rf t convertt loggerN(( t fixerst explicitt _default_optionst copyt optionsR! R' R t! python_grammar_no_print_statementt grammarR2 t getRh t errorst loggingt getLoggerRk t fixer_logR@ t wroteR t DriverR Rj t
get_fixerst pre_ordert
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BM_compatiblet add_fixerR R> t bmi_pre_order_headst bmi_post_order_heads( t selft fixer_namesRp Rm R; ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyt __init__ s<
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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.
R
R? i it _t s Can't find %s.%ss Skipping optional fixer: %ss Adding transformation: %st pret posts Illegal fixer order: %rt run_ordert key( Rl R t rsplitR t FILE_PREFIXt lent splitt CLASS_PREFIXt joint titlet getattrt AttributeErrorRd Rp Rw Rm RW t log_messaget log_debugt orderR t operatort
attrgettert sort( R t pre_order_fixerst post_order_fixerst fix_mod_patht modRB t partsR+ t
class_namet fix_classR; t key_func( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyRz 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( Rk t info( R R R ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR s
c G s' | r | | } n | j j | d S( N( Rk 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( RI t patht isdirt refactor_dirt
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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 %sR? i N(
RI 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
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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_encodingRR t closet _open_with_encodingRH 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 %siR R s No changes in %s( R R! R t refactor_docstringRh t processed_filet refactor_stringt was_changedt unicode( R R R R RG R t outputt tree( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR S s
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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.
Rg s Can't parse %s: %s: %sNs Refactoring %s(
Rc R Rq R Rr t parse_stringR( R t __class__R t future_featuresR t
refactor_tree( R t dataR R` 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 Rh R R R R ( R R RG 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 } xt
| j rcx| j j D]} | | k r | | r | | j
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d t j j n x[t | | D]F} | | | k r9| | j | n y t | Wn t k
r]qn X| j r|| | j k r|qn | j | } | r| j | | } | d k rU| j | x9 | j D]+ } | j sg | _ n | j j | qW| 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 valuesRl R R t Baset depthRW t keep_line_ordert
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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! RF ( R Rl 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 Rh 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(
R RI t errorR R RK R R RW Rx ( 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.)
i i u
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splitlinesRW t lstripR t PS1R6 t refactor_doctestt findt PS2t rstripR R (
R RG R t resultt blockt block_linenot indentt linenot linet i( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR ( s:
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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).
s
Source: %su
s+ Can't parse docstring in %s line %s: %s: %si ii ( t parse_blockR( Rk t isEnabledForRu t DEBUGR R R R R R R R RW t endswithR t popR (
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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:( Rx R} R Rw Rt 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.
This is necessary to get correct line number / offset information
in the parser diagnostics and embedded into the parse tree.
( R t parse_tokenst wrap_toksRS R ( R R R R R ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR s ! c c s t j | j | | j } xe | D]] \ } } \ } } \ } }
} | | d 7} | | d 7} | | | | f | |
f | f Vq% Wd S( s; Wraps a tokenize stream to systematically modify start/end.i N( R RP t gen_linesRL ( R R R R R5 R Rb t line0t col0t line1t col1t line_text( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR s
(c c s | | j } | | j } | } xi | D]a } | j | rN | t | Vn4 | | j d k rl d Vn t d | | f | } q' Wx t r d Vq Wd S( s 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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s line=%r, prefix=%rR N( R R R R R t AssertionErrorRW ( R R R t prefix1t prefix2t prefixR ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR s
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t MultiprocessingUnsupportedc B s e Z RS( ( R R ( ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR s t MultiprocessRefactoringToolc B s5 e Z d Z e e d d Z d Z d Z RS( c O s/ t t | j | | d | _ d | _ d S( N( t superR R R! t queuet output_lock( R R t kwargs( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR s i c C sf | d k r( t t | j | | | Sy d d l } Wn t k
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d | j ^ q } z; x | D] } | j q Wt t | j | | | Wd | j j x$ t | D] } | j j d qWx' | D] } | j r5| j q5q5Wd | _ Xd S( Ni is already doing multiple processest target( R! R R t multiprocessingt ImportErrorR R" R! t RuntimeErrort
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