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72 lines
6.3 KiB
Plaintext
72 lines
6.3 KiB
Plaintext
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<03>
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<EFBFBD>W`Sc @ 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 <00> Z
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d <00> Z d <00> Z d <00> Z
d <00> Z d
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<00> Z d e j f d <00> <00> 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]<5D> } | j t j k r, t | <00> 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 <00> r<> | j d k r<> t
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Sq<53> q
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q
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Wt S( s<> 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( ( s$ .\Lib\lib2to3\fixes\fix_metaclass.pyR
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s
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c C s<> x' | j D] } | j t j k r
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d Sq
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Wx? t | j <00> D]" \ } } | j t j k r: Pq: q: Wt d <00> <00> t t j g <00> } xC | j | d r<> | j | d } | j | j
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<00> <00> | j <00> q<> W| j | <00> | } 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( ( s$ .\Lib\lib2to3\fixes\fix_metaclass.pyt fixup_parse_tree- s
c
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C s<> x7 t | j <00> D]" \ } } | j t j k r Pq q Wd S| j <00> t t j g <00> } t t j | g <00> } x; | j | r<> | j | } | j
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| j <00> <00> | j <00> qn W| j | | <00> | j d j d } | j d j d } | j
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d S( s<> 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 after 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( ( s$ .\Lib\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 <00> n d S( Ni<4E><69><EFBFBD><EFBFBD>( R R R t NEWLINER ( R ( ( s$ .\Lib\lib2to3\fixes\fix_metaclass.pyt remove_trailing_newline_ s "c c s<> x3 | j D] } | j t j k r
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Pq
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q
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Wt d <00> <00> x<> t t | j <00> <00> D]<5D> \ } } | j t j k rL | j rL | j d } | j t j k r<> | j r<> | j d } t | t
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<00> r<> | j d k r<> t | | | <00> t
| <00> | | | f Vq<> 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( ( s$ .\Lib\lib2to3\fixes\fix_metaclass.pyt
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find_metasd s "
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c C s<> | j d d d <00> } x, | rD | j <00> } | j t j k r Pq q Wxm | r<> | j <00> } t | t <00> r<> | j t j k r<> | j r<> d | _ n d S| j | j d d d <00> <19> 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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Ni<4E><69><EFBFBD><EFBFBD>u (
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R t popR R t INDENTR
R t DEDENTR! t extend( R t kidsR ( ( s$ .\Lib\lib2to3\fixes\fix_metaclass.pyt fixup_indent{ s ! t FixMetaclassc B s e Z e Z d Z d <00> Z RS( s
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classdef<any*>
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c C s' t | <00> s d St | <00> d } x- t | <00> D] \ } } } | } | j <00> q- W| j d j } t | j <00> d k r<> | j d j t j k r<> | j d } q<>| j d j
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<00> } t t j | g <00> } | j d | <00> n<> t | j <00> d k rt t j g <00> } | j
d | <00> n~ t | j <00> d k r<>t t j g <00> } | j
d t t j d <00> <00> | j
d | <00> | j
d t t j d <00> <00> n t d <00> <00> | j d j d }
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d
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_ |
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j } | j r<>| j t t j d <00> <00> d |
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_ n d
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<00> | j t t j d <00> <00> n<> t | j <00> d k r#| j d j t j k r#| j d j t j k r#t | d <00> }
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<00> | j
d t t j d <00> <00> 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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i<EFBFBD><EFBFBD><EFBFBD><EFBFBD>i<EFBFBD><EFBFBD><EFBFBD><EFBFBD>( 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( ( s$ .\Lib\lib2to3\fixes\fix_metaclass.pyt transform<72> s`
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( t __name__t
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__module__R t
BM_compatiblet PATTERNRG ( ( ( s$ .\Lib\lib2to3\fixes\fix_metaclass.pyR5 <00> 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 ( ( ( s$ .\Lib\lib2to3\fixes\fix_metaclass.pyt <module> s "
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