← Back
Editing: fix_metaclass.cpython-33.pyo
� �� f c @ 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 d � Z d d � Z d d � Z d d � Z d d � Z d d � Z Gd d � d e j � Z d S( u� Fixer for __metaclass__ = X -> (metaclass=X) methods. The various forms of classef (inherits nothing, inherits once, inherints many) don't parse the same in the CST so we look at ALL classes for a __metaclass__ and if we find one normalize the inherits to all be an arglist. For one-liner classes ('class X: pass') there is no indent/dedent so we normalize those into having a suite. Moving the __metaclass__ into the classdef can also cause the class body to be empty so there is some special casing for that as well. This fixer also tries very hard to keep original indenting and spacing in all those corner cases. i ( u fixer_base( u token( u Nameu symsu Nodeu Leafc C s� x� | j D]� } | j t j k r, t | � S| j t j k r | j r | j d } | j t j k r� | j r� | j d } t | t � r� | j d k r� d Sq� q q Wd S( u� we have to check the cls_node without changing it. There are two possiblities: 1) clsdef => suite => simple_stmt => expr_stmt => Leaf('__meta') 2) clsdef => simple_stmt => expr_stmt => Leaf('__meta') i u __metaclass__TF( u childrenu typeu symsu suiteu has_metaclassu simple_stmtu expr_stmtu isinstanceu Leafu valueu Trueu False( u parentu nodeu expr_nodeu left_side( ( u@ /opt/alt/python33/lib64/python3.3/lib2to3/fixes/fix_metaclass.pyu has_metaclass s u has_metaclassc C s� x' | j D] } | j t j k r d Sq Wx? t | j � D]" \ } } | j t j k r: Pq: q: Wt d � � t t j g � } xI | j | d d � r� | j | d } | j | j � � | j � q� W| j | � | } d S( uf one-line classes don't get a suite in the parse tree so we add one to normalize the tree Nu No class suite and no ':'!i ( u childrenu typeu symsu suiteu enumerateu tokenu COLONu ValueErroru Nodeu append_childu cloneu remove( u cls_nodeu nodeu iu suiteu move_node( ( u@ /opt/alt/python33/lib64/python3.3/lib2to3/fixes/fix_metaclass.pyu fixup_parse_tree- s u fixup_parse_treec C s� x7 t | j � D]" \ } } | j t j k r Pq q Wd S| j � t t j g � } t t j | g � } xA | j | d � r� | j | } | j | j � � | j � qn W| j | | � | j d j d } | j d j d } | j | _ d S( u� if there is a semi-colon all the parts count as part of the same simple_stmt. We just want the __metaclass__ part so we move everything after the semi-colon into its own simple_stmt node Ni ( u enumerateu childrenu typeu tokenu SEMIu removeu Nodeu symsu expr_stmtu simple_stmtu append_childu cloneu insert_childu prefix( u parentu iu stmt_nodeu semi_indu nodeu new_expru new_stmtu move_nodeu new_leaf1u old_leaf1( ( u@ /opt/alt/python33/lib64/python3.3/lib2to3/fixes/fix_metaclass.pyu fixup_simple_stmtG s u fixup_simple_stmtc C s: | j r6 | j d j t j k r6 | j d j � n d S( Ni i����i����( u childrenu typeu tokenu NEWLINEu remove( u node( ( u@ /opt/alt/python33/lib64/python3.3/lib2to3/fixes/fix_metaclass.pyu remove_trailing_newline_ s "u remove_trailing_newlinec c s� x3 | j D] } | j t j k r Pq q 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 � r� | j d k r� t | | | � t | � | | | f Vq� q� qL qL Wd S( Nu No class suite!i u __metaclass__( u childrenu typeu symsu suiteu ValueErroru listu enumerateu simple_stmtu expr_stmtu isinstanceu Leafu valueu fixup_simple_stmtu remove_trailing_newline( u cls_nodeu nodeu iu simple_nodeu expr_nodeu left_node( ( u@ /opt/alt/python33/lib64/python3.3/lib2to3/fixes/fix_metaclass.pyu find_metasd s " u find_metasc C s� | 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( u� If an INDENT is followed by a thing with a prefix then nuke the prefix Otherwise we get in trouble when removing __metaclass__ at suite start Ni u i����i����( u childrenu popu typeu tokenu INDENTu isinstanceu Leafu DEDENTu prefixu extend( u suiteu kidsu node( ( u@ /opt/alt/python33/lib64/python3.3/lib2to3/fixes/fix_metaclass.pyu fixup_indent{ s ! u fixup_indentc B s, | Ee Z d Z d Z d Z d d � Z d S( u FixMetaclassu classdef<any*> c C s t | � s d St | � d } x- t | � D] \ } } } | } | j � q- W| j d j } t | j � d k r� | j d j t j k r� | j d } q�| j d j � } 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 } d | _ | j } | j r�| j t t j d � � d | _ n d | _ | j d } d | j d _ d | j d _ | j | � t | � | j s�| j � t | d � } | | _ | j | � | j t t j d � � n� 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 (u Unexpected class definitionu metaclassu ,u u i u passu i����i����i����i����( u has_metaclassu fixup_parse_treeu Noneu find_metasu removeu childrenu typeu lenu symsu arglistu cloneu Nodeu set_childu insert_childu Leafu tokenu RPARu LPARu ValueErroru valueu prefixu append_childu COMMAu fixup_indentu NEWLINEu INDENTu DEDENT( u selfu nodeu resultsu last_metaclassu suiteu iu stmtu text_typeu arglistu parentu meta_txtu orig_meta_prefixu expr_stmtu pass_leaf( ( u@ /opt/alt/python33/lib64/python3.3/lib2to3/fixes/fix_metaclass.pyu transform� s^ u FixMetaclass.transformNT( u __name__u __module__u __qualname__u Trueu BM_compatibleu PATTERNu transform( u __locals__( ( u@ /opt/alt/python33/lib64/python3.3/lib2to3/fixes/fix_metaclass.pyu FixMetaclass� s u FixMetaclassN( u __doc__u u fixer_baseu pygramu tokenu fixer_utilu Nameu symsu Nodeu Leafu has_metaclassu fixup_parse_treeu fixup_simple_stmtu remove_trailing_newlineu find_metasu fixup_indentu BaseFixu FixMetaclass( ( ( u@ /opt/alt/python33/lib64/python3.3/lib2to3/fixes/fix_metaclass.pyu <module> s "
Save File
Cancel