AlkantarClanX12
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� )�with_statementz#Guido van Rossum <guido@python.org>N)�chain� )�driver�tokenize�token)� find_root)�pytree�pygram)� btm_utils)� btm_matcherTc 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)zEReturn a sorted list of all available fix names in the given package.�*�fix_z.py� N� ���)
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__module__� __qualname__r r r r r . s r c C s� t | t j t j f � r= | j d k r3 t � n | j h St | t j � rn | j re t | j � St � n t | t j � r� t
� } x5 | j D]* } x! | D] } | j t | � � q� Wq� W| St d | � � d S)zf Accepts a pytree Pattern Node and returns a set
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� D] } | | j | � q� Wt | � S)z^ Accepts a list of fixers and returns a dictionary
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� } yex^| � \ } } | | 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
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FixerErrorz A fixer could not be loaded.N)r! r" r# �__doc__r r r r ra � s ra c @ sk e Z d Z i d d 6d d 6Z d Z d Z d d d d � Z d d
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d d � Z d d d d � Z d d � Z d d d � Z d d � Z d! d" � Z d d d d# d$ � Z d d% d& � Z d' Z d( Z d) d* � Z d+ d, � Z d- d. � Z d/ d0 � Z d1 d2 � Z d3 d4 � Z d S)5�RefactoringToolF�print_function�write_unchanged_filesZFixr Nc C s� | | _ | p g | _ | j j � | _ | d k rI | j j | � n | j d re t j | _ n t j | _ | j j
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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)z�Initializer.
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fixer_names: a list of fixers to import
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zRefactoringTool.__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
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� | | f S)a 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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r8 r N�_� c S s g | ] } | j � � q Sr )�title)r9 r+ r r r r< � s z.RefactoringTool.get_fixers.<locals>.<listcomp>zCan't find %s.%sTzSkipping optional fixer: %szAdding transformation: %sZpreZpostzIllegal fixer order: %rZ run_order�key���)rh r �rsplitr � FILE_PREFIX�len�split� CLASS_PREFIX�join�getattr�AttributeErrorra rl rr ri � log_message� log_debugZorderr �operator�
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zRefactoringTool.get_fixersc O s � d S)z Called when an error occurs.Nr )r| �msg�args�kwdsr r r � log_error s zRefactoringTool.log_errorc G s' | r | | } n | j j | � d S)zHook to log a message.N)rg �info)r| r� r� r r r r� s
zRefactoringTool.log_messagec G s' | r | | } n | j j | � d S)N)rg �debug)r| r� r� r r r r� s
zRefactoringTool.log_debugc C s d S)zTCalled with the old version, new version, and filename of a
refactored file.Nr )r| �old_text�new_text�filename�equalr r r � print_output! s z RefactoringTool.print_outputc C sP xI | D]A } t j j | � r5 | j | | | � q | j | | | � q Wd S)z)Refactor a list of files and directories.N)r r �isdir� refactor_dir�
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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)z�Descends down a directory and refactor every Python file found.
Python files are assumed to have a .py extension.
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�pyzDescending into %sr8 r c S s% g | ] } | j d � s | � q S)r8 )r )r9 Zdnr r r r< A s z0RefactoringTool.refactor_dir.<locals>.<listcomp>N)
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�rbzCan't open %s: %sNr r* �encoding)NN)
�open�OSErrorr� r �detect_encodingrR �close�_open_with_encodingrC �read)r| r� �f�errr� r r r �_read_python_sourceC s z#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)
zRefactors a file.Nr@ zRefactoring doctests in %szNo doctest changes in %sr r� r� zNo changes in %sr� )r� r� �refactor_docstringre �processed_file�refactor_string� was_changed�str)r| r� r� r� rB r� �output�treer r r r� S s
z RefactoringTool.refactor_filec C s� t | � } d | k r* t j | j _ n zb y | j j | � } WnE t k
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| j d | � | j | | � | S)aF 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.
rd zCan't parse %s: %s: %sNzRefactoring %s)
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refactor_tree)r| �datar r^ r� r� r r r r� j s z 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)Nz Refactoring doctests in stdinz<stdin>zNo doctest changes in stdinzNo changes in stdin)
�sys�stdinr� r� r� re r� r� r� r� )r| r� rB r� r� r r r �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 � � rdx�| j j D]�} | | k r� | | r� | | j
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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)a� 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.
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start_tree� traverse_byrz r{ ry ZrunZleaves�anyr2 rh r� r ZBaseZdepthZkeep_line_orderZ
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. z 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)a 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
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Called when a file has been refactored and there may be changes.
Nr zNo changes to %szNot writing changes to %s)rw r r� r� r� re �
write_file)r| r� r� r� r� r� r� r r r r� � s z RefactoringTool.processed_filec % C s� y t | d d | �} Wn< t k
rW } z | j d | | � d SWYd d } ~ Xn XzV y | j t | � � Wn8 t k
r� } z | j d | | � WYd d } ~ Xn XWd | j � X| j d | � d | _ d S)z�Writes a string to a file.
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�wr� zCan't create %s: %sNzCan't write %s: %szWrote changes to %sT)r� r� r� r� rE r� r� rs )r| r� r� r� r� r� r� r r r r� s * zRefactoringTool.write_filez>>> z... 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
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| � S)a� 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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z�Refactors one doctest.
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Source: %sr@ z+Can't parse docstring in %s line %s: %s: %sNr� Tr r c s! g | ] } � � j | � q Sr )r� )r9 r� )r� r| r r r< m s z4RefactoringTool.refactor_doctest.<locals>.<listcomp>r� r� )� parse_blockr) rg Z isEnabledForrq �DEBUGr� r� r� r� r! r� r� r� r r� �pop)
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need to bezNo files %s modified.zFiles that %s modified:z$Warnings/messages while refactoring:r zThere was 1 error:zThere were %d errors:)rs rw r� rr rp r� )r| r� �file�messager� r� r� r r r � summarizep s$
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� Z � S) �MultiprocessRefactoringToolc s/ t t | � j | | � d | _ d | _ d S)N)�superr� r} �queue� output_lock)r| r� �kwargs)r� r r r} � s z$MultiprocessRefactoringTool.__init__Fr c s[ | d k r( t t � � j | | | � Sy d d l � Wn t k
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