ó
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Y\¬Qc @ s d Z d d l m Z d d l m Z d d l m Z m Z m Z m Z d Z
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d Z d Z d Z d Z d
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Z d e j f d YZ d S( s Fixer for __metaclass__ = X -> (metaclass=X) methods.
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The various forms of classef (inherits nothing, inherits once, inherints
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many) don't parse the same in the CST so we look at ALL classes for
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a __metaclass__ and if we find one normalize the inherits to all be
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an arglist.
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For one-liner classes ('class X: pass') there is no indent/dedent so
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we normalize those into having a suite.
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Moving the __metaclass__ into the classdef can also cause the class
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body to be empty so there is some special casing for that as well.
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This fixer also tries very hard to keep original indenting and spacing
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in all those corner cases.
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i ( t
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fixer_base( t token( t Namet symst Nodet Leafc C s¬ x¥ | j D] } | j t j k r, t | S| j t j k r
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| j r
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| j d } | j t j k r¤ | j r¤ | j d } t | t r¡ | j d k r¡ t
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Sq¤ q
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q
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Wt S( së we have to check the cls_node without changing it.
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There are two possiblities:
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1) clsdef => suite => simple_stmt => expr_stmt => Leaf('__meta')
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2) clsdef => simple_stmt => expr_stmt => Leaf('__meta')
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i t __metaclass__( t childrent typeR t suitet has_metaclasst simple_stmtt expr_stmtt
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isinstanceR t valuet Truet False( t parentt nodet expr_nodet left_side( ( sc /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/fixes/fix_metaclass.pyR
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s
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c C sÛ x' | j D] } | j t j k r
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d Sq
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Wx? t | j D]" \ } } | j t j k r: Pq: q: Wt d t t j g } xC | j | d rà | j | d } | j | j
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| j q W| j | | } d S( sf one-line classes don't get a suite in the parse tree so we add
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one to normalize the tree
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Ns No class suite and no ':'!i ( R R R R t enumerateR t COLONt
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ValueErrorR t append_childt clonet remove( t cls_nodeR t iR t move_node( ( sc /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/fixes/fix_metaclass.pyt fixup_parse_tree- s c
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C sñ x7 t | j D]" \ } } | j t j k r Pq q Wd S| j t t j g } t t j | g } x; | j | r¨ | j | } | j
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| j | j qn W| j | | | j d j d } | j d j d } | j | _ d S( sÑ if there is a semi-colon all the parts count as part of the same
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simple_stmt. We just want the __metaclass__ part so we move
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everything efter the semi-colon into its own simple_stmt node
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Ni ( R R R R t SEMIR R R R R R R t insert_childt prefix(
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R R t stmt_nodet semi_indR t new_exprt new_stmtR t new_leaf1t old_leaf1( ( sc /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/fixes/fix_metaclass.pyt fixup_simple_stmtG s
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c C s: | j r6 | j d j t j k r6 | j d j n d S( Niÿÿÿÿ( R R R t NEWLINER ( R ( ( sc /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/fixes/fix_metaclass.pyt remove_trailing_newline_ s "c c sÿ x3 | j D] } | j t j k r
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Pq
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Wt d x t t | j D]« \ } } | j t j k rL | j rL | j d } | j t j k r÷ | j r÷ | j d } t | t
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rô | j d k rô t | | | t | | | | f Vqô q÷ qL qL Wd S( Ns No class suite!i u __metaclass__( R R R R R t listR R R R R R R( R* ( R R R t simple_nodeR t left_node( ( sc /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/fixes/fix_metaclass.pyt
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find_metasd s "
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c C s¹ | j d d d
} x, | rD | j } | j t j k r Pq q Wxm | r´ | j } t | t r | j t j k r | j r d | _ n d S| j | j d d d
qH Wd S( s If an INDENT is followed by a thing with a prefix then nuke the prefix
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Otherwise we get in trouble when removing __metaclass__ at suite start
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Niÿÿÿÿu (
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R t popR R t INDENTR R t DEDENTR! t extend( R t kidsR ( ( sc /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/fixes/fix_metaclass.pyt fixup_indent{ s ! t FixMetaclassc B s e Z e Z d Z d Z RS( s
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classdef<any*>
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c C s' t | s d St | d } x- t | D] \ } } } | } | j q- W| j d j } t | j d k rÙ | j d j t j k r | j d } q| j d j
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} t t j | g } | j d | n¸ t | j d k rt t j g } | j d | n~ t | j d k r
t t j g } | j d t t j d | j d | | j d t t j d n t d | j d j d }
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d
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j } | j rå| j t t j d d |
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t | j d k r#| j d j t j k r#| j d j t j k r#t | d } | j d | | j d t t j d n d S( Ni i i i i i u )u (s Unexpected class definitiont metaclassu ,u u i u passu
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iþÿÿÿiÿÿÿÿ( R
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R t NoneR. R R R t lenR t arglistR R t set_childR R R t RPARt LPARR R R! R t COMMAR t AssertionErrorR4 R) R0 R1 ( t selfR t resultst last_metaclassR R t stmtt text_typeR9 R t meta_txtt orig_meta_prefixR t pass_leaf( ( sc /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/fixes/fix_metaclass.pyt transform s`
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( t __name__t
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__module__R t BM_compatiblet PATTERNRG ( ( ( sc /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/fixes/fix_metaclass.pyR5 s N( t __doc__t R t pygramR t
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fixer_utilR R R R R
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R R( R* R. R4 t BaseFixR5 ( ( ( sc /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/fixes/fix_metaclass.pyt <module> s "
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