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j6 g � Z7 d3 � Z8 d5 d4 � Z9 d5 S(6 s1 Utility functions, node construction macros, etc.i����( t islicei ( t token( t Leaft Node( t python_symbols( t patcompc C s% t t j | t t j d � | g � S( Nu =( R t symst argumentR R t EQUAL( t keywordt value( ( s( /usr/lib/python2.7/lib2to3/fixer_util.pyt
KeywordArg s c C s t t j d � S( Nu (( R R t LPAR( ( ( s( /usr/lib/python2.7/lib2to3/fixer_util.pyt LParen s c C s t t j d � S( Nu )( R R t RPAR( ( ( s( /usr/lib/python2.7/lib2to3/fixer_util.pyt RParen s c C sl t | t � s | g } n t | t � s? d | _ | g } n t t j | t t j d d d �g | � S( s Build an assignment statementu u =t prefix( t
isinstancet listR R R t atomR R R ( t targett source( ( s( /usr/lib/python2.7/lib2to3/fixer_util.pyt Assign s c C s t t j | d | �S( s Return a NAME leafR ( R R t NAME( t nameR ( ( s( /usr/lib/python2.7/lib2to3/fixer_util.pyt Name& s c C s | t t j t � | g � g S( s A node tuple for obj.attr( R R t trailert Dot( t objt attr( ( s( /usr/lib/python2.7/lib2to3/fixer_util.pyt Attr* s c C s t t j d � S( s A comma leafu ,( R R t COMMA( ( ( s( /usr/lib/python2.7/lib2to3/fixer_util.pyt Comma. s c C s t t j d � S( s A period (.) leafu .( R R t DOT( ( ( s( /usr/lib/python2.7/lib2to3/fixer_util.pyR 2 s c C sM t t j | j � | j � g � } | rI | j d t t j | � � n | S( s- A parenthesised argument list, used by Call()i ( R R R t clonet insert_childt arglist( t argst lparent rparent node( ( s( /usr/lib/python2.7/lib2to3/fixer_util.pyt ArgList6 s $ c C s: t t j | t | � g � } | d k r6 | | _ n | S( s A function callN( R R t powerR) t NoneR ( t func_nameR% R R( ( ( s( /usr/lib/python2.7/lib2to3/fixer_util.pyt Call= s c C s t t j d � S( s A newline literalu
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index_node( ( s( /usr/lib/python2.7/lib2to3/fixer_util.pyt SubscriptO s c C s t t j | d | �S( s
A string leafR ( R R t STRING( t stringR ( ( s( /usr/lib/python2.7/lib2to3/fixer_util.pyt StringU s c C s d | _ d | _ d | _ t t j d � } d | _ t t j d � } d | _ | | | | g } | r� d | _ t t j d � } d | _ | j t t j | | g � � n t t j | t t j | � g � } t t j
t t j d � | t t j d � g � S( su A list comprehension of the form [xp for fp in it if test].
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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
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S( s Returns true if node is in an environment where all that is required
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See test_map_nochange in test_fixers.py for some examples and tests.
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c C s" t | t | � | � } t | � S( s� Returns true if name is imported from package at the
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