관리-도구
편집 파일: pycodegen.pyc
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R9 RG ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR# o s c C s* | j | j � � t j | j | � d S( N( t writet getPycHeadert marshalR% R4 ( R; R( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR% w s c C s2 t j j | j � } t j d | � } | j | S( Ns <i( t ost patht getmtimeR& t structt packt MAGIC( R; t mtime( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRI } s ( RB RC R6 R# R% t impt get_magicRP RI ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR" k s t LocalNameFinderc B sk e Z d Z d d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z RS( s Find local names in scopec C sC t j � | _ t j � | _ x | D] } | j j | � q% Wd S( N( R t Sett namest globalst add( R; RV t name( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR< � s c C sF x< | j j � D]+ } | j j | � r | j j | � q q W| j S( N( RW t elementsRV t has_eltt remove( R; t elt( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt getLocals� s c C s d S( N( ( R; t node( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitDict� s c C s( x! | j D] } | j j | � q Wd S( N( RV RW RX ( R; R_ RY ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitGlobal� s c C s | j j | j � d S( N( RV RX RY ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitFunction� s c C s d S( N( ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitLambda� s c C s4 x- | j D]" \ } } | j j | p( | � q Wd S( N( RV RX ( R; R_ RY t alias( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitImport� s c C s4 x- | j D]" \ } } | j j | p( | � q Wd S( N( RV RX ( R; R_ RY Rd ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitFrom� s c C s | j j | j � d S( N( RV RX RY ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitClass� s c C s | j j | j � d S( N( RV RX RY ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitAssName� s ( ( RB RC t __doc__R< R^ R` Ra Rb Rc Re Rf Rg Rh ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRT � s c C s& t | t j � r" | j s" d Sn d S( Ni i ( t isinstanceR t Constt value( R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt is_constant_false� s t CodeGeneratorc B sU e Z d Z d Z d� Z d� Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z e d � Z e Z d� Z d� Z d � Z d � Z d � Z d � Z d d � Z d � Z d � Z! d � Z" d � Z# d � Z$ d � Z% d � Z& d � Z' d � Z( d � Z) d � Z* d! � Z+ d" � Z, d# � Z- d$ � Z. d% � Z/ d& � Z0 d' � Z1 d( � Z2 d) � Z3 d* � Z4 d+ � Z5 d, � Z6 d- � Z7 d. � Z8 d Z9 d/ � Z: d0 � Z; d1 � Z< d2 � Z= d3 � Z> d4 � Z? d5 � Z@ d6 � ZA d7 � ZB d8 � ZC d9 � ZD d: � ZE d; � ZF d< � ZG d= d> � ZH eI d? k rveH ZJ eH ZK n d@ � ZJ dA � ZK dB � ZL i dC dD 6dE dF 6dG dH 6dI dJ 6dK dL 6dM dN 6dO dP 6dQ dR 6dS dT 6dU dV 6dW dX 6dY dZ 6ZM d[ � ZN d\ � ZO d] � ZP d^ � ZQ d_ � ZR d` � ZS d da � ZT db � ZU dc � ZV dd � ZW d� de � ZX d� df � ZY dg � ZZ dh � Z[ di � Z\ dj � Z] dk � Z^ dl � Z_ dm � Z` dn � Za do � Zb dp � Zc dq � Zd dr � Ze ds � Zf dt � Zg du � Zh dv � Zi dw � Zj dx � Zk dy � Zl dz � Zm d{ � Zn d| � Zo d} � Zp d~ � Zq d � Zr d� � Zs d� � Zt RS(� s� Defines basic code generator for Python bytecode This class is an abstract base class. Concrete subclasses must define an __init__() that defines self.graph and then calls the __init__() defined in this class. The concrete class must also define the class attributes NameFinder, FunctionGen, and ClassGen. These attributes can be defined in the initClass() method, which is a hook for initializing these methods after all the classes have been defined. i c C s | j d k r( | j � d | j _ n | j � t j � | _ t j � | _ d | _ | j � d | _ | j � j } x� | D]� } | d k r� | j j t � d | _ q� | d k r� | j j t � q� | d k r� | j j t � q� | d k r� | j j t � q� q� Wd S( Ni t BINARY_DIVIDEt divisiont BINARY_TRUE_DIVIDEt absolute_importt with_statementt print_function( t _CodeGenerator__initializedR/ t initClasst __class__t checkClassR t Stackt localst setupst last_linenot _setupGraphDelegationt _div_opt get_modulet futurest grapht setFlagR R R R ( R; R� t feature( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR< � s( c C s d S( s) This method is called once for each classN( ( R; ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRv � t c C s� yX t | d � s t � t | d � s- t � t | d � sB t � t | d � sW t � Wn, t k r� } d | j j } t | � n Xd S( s* Verify that class is constructed correctlyR� t NameFindert FunctionGent ClassGens Bad class construction for %sN( t hasattrt AssertionErrort getattrRw RB ( R; t msgt intro( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRx � s c C sO | j j | _ | j j | _ | j j | _ | j j | _ | j j | _ d S( N( R� t emitt newBlockt startBlockt nextBlockt setDocstring( R; ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR} � s c C s | j j � S( s Return a code object( R� RA ( R; ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRA � s c C s* | j d k r" t j | | j � S| Sd S( N( t class_nameR/ R t mangle( R; RY ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR� � s c C s t j � } t | | � | j S( N( R t SymbolVisitorR t scopes( R; R? t s( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt parseSymbols s c C s t d � d S( Ns# should be implemented by subclasses( R0 ( R; ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR s c C s | j j � j | � S( N( Rz t topR[ ( R; RY ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt isLocalName s c C s | j d | � d S( Nt STORE( t _nameOp( R; RY ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt storeName s c C s | j d | � d S( Nt LOAD( R� ( R; RY ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt loadName s c C s | j d | � d S( Nt DELETE( R� ( R; RY ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt delName s c C s | j | � } | j j | � } | t k rd | j sM | j | d | � q | j | d | � n� | t k r� | j | d | � n� | t k r� | j s� | j | d | � q | j | d | � nB | t k s� | t k r� | j | d | � n t d | | f � d S( Nt _NAMEt _FASTt _GLOBALt _DEREFs unsupported scope for var %s: %d( R� t scopet check_nameR t optimizedR� R R R R R0 ( R; t prefixRY R� ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR� s c C s8 | j r | j | d | � n | j | d | � d S( s� Emit name ops for names generated implicitly by for loops The interpreter generates names that start with a period or dollar sign. The symbol table ignores these names because they aren't present in the program text. R� R� N( R� R� ( R; R� RY ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt _implicitNameOp+ s c C sT t | d d � } | d k rP | | j k s3 | rP | j d | � | | _ t St S( s� Emit SET_LINENO if necessary. The instruction is considered necessary if the node has a lineno attribute and it is different than the last lineno emitted. Returns true if SET_LINENO was emitted. There are no rules for when an AST node should have a lineno attribute. The transformer and AST code need to be reviewed and a consistent policy implemented and documented. Until then, this method works around missing line numbers. t linenot SET_LINENON( R� R/ R| R� t Truet False( R; R_ t forceR� ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt set_lineno< s c C s� | j | � | _ | j | | _ | j d d � | j r^ | j d | j � | j d � n t | j | j � d d �} | j j | j � � | j | j � | j d d � | j d � d S( NR� i t LOAD_CONSTRi t verboset RETURN_VALUE( R� R� R� R� t docR� R R_ R� Rz t pushR^ t visitR/ ( R; R_ t lnf( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitModuleZ s c C sP | j | � | j | � | _ | j | | _ | j | j � | j d � d S( NR� ( R� R� R� R� R� R_ R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitExpressiong s c C sC | j | d d �| j r/ | j | j � n | j | j � d S( Nt isLambdai ( t _visitFuncOrLambdaR� R� R� RY ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRb n s c C s | j | d d �d S( NR� i ( R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRc t s c C s | rI | j rI x! | j j D] } | j | � q Wt | j j � } n d } | j | | j | | j | j � � } t | j | � | j � | j | � x | j D] } | j | � q� W| j | t | j � � x$ t | � D] } | j d d � q� Wd S( Ni R i ( t decoratorst nodesR� t lenR� R� R� R R R4 t finishR� t defaultst _makeClosuret rangeR� ( R; 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R_ t loopR� t after( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitWhile� s& c C s( | j � } | j � } | j � } | j j t | f � | j | � | j d | � | j | j � | j d � | j | � | j | d d �| j d | � | j | j � | j | j � | j d | � | j | � | j d � | j j � | j r| j | j � n | j | � d S( NR� t GET_ITERR� i t FOR_ITERR� R� ( R� R{ R� R� R� R� R� t listR� t assignR� R� R� ( R; R_ t startt anchorR� ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitFor� s( c C sC | j s% t d | j | j f � n | j | � | j d � d S( Ns 'break' outside loop (%s, %d)t BREAK_LOOP( R{ R$ R& R� R� R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitBreak� s c C s[ | j s% t d | j | j f � n | j j � \ } } | t k rp | j | � | j d | � | j � n� | t k s� | t k r)| j | � t | j � } x= | d k r� | d } | j | \ } } | t k r� Pq� q� W| t k r t d | j | j f � n | j d | � | j � n. | t k rWd } t | | j | j f � n d S( Ns 'continue' outside loop (%s, %d)R� i i t CONTINUE_LOOPs7 'continue' not allowed inside 'finally' clause (%s, %d)( R{ R$ R& R� R� R� R� R� R� t EXCEPTt TRY_FINALLYR� t END_FINALLY( R; 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R_ t post kwt argt have_start have_dstart opcode( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitCallFunc6 s" c C s� | j | � | j r) | j | j � n xj | j D]_ } | j rR | j d � n | j | � | j r� | j d � | j d � q3 | j d � q3 W| j r� | r� | j d � n d S( NR� R� t PRINT_ITEM_TOt PRINT_ITEMR� ( R� t destR� R� R� ( R; R_ t newlineR� ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitPrintJ s c C s= | j | d d �| j r, | j d � n | j d � d S( NR� i t PRINT_NEWLINE_TOt PRINT_NEWLINE( R� R� R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitPrintnlZ s c C s. | j | � | j | j � | j d � d S( NR� ( R� R� Rl R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitReturna s c C s. | j | � | j | j � | j d � d S( NR! 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| j | j � | j | � d S( N( R� R� R� ( R; R_ R ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt unaryOp� s c C s | j | d � S( Nt UNARY_INVERT( R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitInvert� s c C s | j | d � S( Nt UNARY_NEGATIVE( R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitUnarySub� s c C s | j | d � S( Nt UNARY_POSITIVE( R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitUnaryAdd� s c C s | j | d � S( NR� ( R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitUnaryInvert� s c C s | j | d � S( Nt UNARY_NOT( R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitNot� s c C s | j | d � S( Nt UNARY_CONVERT( R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitBackquote� s c C sD | j | d � x, | d D] } | j | � | j | � q Wd S( Ni i ( R� R� ( R; R� R R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt bitOp� s c C s | j | j d � S( Nt BINARY_AND( R� R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitBitand� s c C s | j | j d � S( Nt BINARY_OR( R� R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitBitor� s c C s | j | j d � S( Nt BINARY_XOR( R� R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitBitxor� s c C s | j d t � d S( NR� ( R� t Ellipsis( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitEllipsis� s c C sK | j | � x | j D] } | j | � q W| j d t | j � � d S( NR� ( R� R� R� R� R� ( R; R_ R] ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitTuple� s c C sK | j | � x | j D] } | j | � q W| j d t | j � � d S( NR ( R� R� R� R� R� ( R; R_ R] ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitList� s c C sK | j | � x | j D] } | j | � q W| j d t | j � � d S( NR ( R� R� R� R� R� ( R; R_ R] ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitSet� s c C s> x | j D] } | j | � q W| j d t | j � � d S( Nt BUILD_SLICE( R� R� R� R� ( R; R_ R� ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt visitSliceobj� s c C s| | j | � | j d d � xX | j D]M \ } } | j d � | j | � | j | � | j d � | j d � q' Wd S( NR i R� R� R� ( R� R� t itemsR� ( R; R_ t kt v( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR` � s N(u RB RC Ri R� R/ Ru R� R< Rv Rx R} RA R� R� R R� R� R� R� R� R� R� R� RT R� R� R� R� R� Rb Rc R� Rg R� R� R� R� R� R� R� R� R� R R R R R R R� R R" R$ R% R* R/ R6 R9 R> RA RB RC RD Ra RE RF Re Rf RL RX R[ Rh Ra Rd RJ Rf Rh Rn Rl R{ R| R� R� R� R� R� R� R� R� R~ R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R` ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRn � s� / $ t NestedScopeMixinc B s e Z d Z d � Z RS( s> Defines initClass() for nested scoping (Python 2.2-compatible)c C s( t | j _ t | j _ t | j _ d S( N( RT Rw R� t FunctionCodeGeneratorR� t ClassCodeGeneratorR� ( R; ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRv s ( RB RC Ri Rv ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR� s RF c B s) e Z e j Z d Z d � Z d � Z RS( c C sE t j d | j � | _ t j | � | _ | j � t | | � d S( Ns <module>( R t PyFlowGraphR& R� R t find_futuresR� t _ModuleCodeGenerator__super_initR ( R; R? 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( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR< 2 s c C s | S( N( ( R; ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR 9 s c C s! | j | j � | j d � d S( Nt PRINT_EXPR( R� R� R� ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRB < s N( ( RB RC Rn R< R� R/ R� R� R RB ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRE + s t AbstractFunctionCodec B sG e Z d Z d Z d � Z d � Z d � Z d � Z d � Z e Z RS( i i c C sL | | _ | | _ | r> t } d | j } | j d | _ n | j } t | j � \ } } t j | | j | d d �| _ | | _ | j � | r� | j r� | j | j � n t | j | j | � d d �} | j j | j � � | j r| j j t � n | j r"| j j t � n | j | � | rH| j | j � n d S( Ns <lambda.%d>i R� R� i ( R� t moduleR� t lambdaCountRY t generateArgListt argnamesR R� R& R� R� t super_initR� R� R R4 R� Rz R� R^ t varargsR� R t kwargsR R� t generateArgUnpack( R; t funcR� R� R� R* t klassRY R t hasTupleArgR� ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR< F s. ! c C s | j S( N( R� ( R; ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR c s c C s: | j j � | j s) | j d d � n | j d � d S( NR� R� ( R� t startExitBlockR� R� R/ ( R; ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR� f s c C sb x[ t t | � � D]G } | | } t | t � r | j d d | d � | j | � q q Wd S( Nt LOAD_FASTs .%di ( R� R� Rj RR R� t unpackSequence( R; R R� R� ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR� l s c C s t d k r% | j d t | � � n | j d t | � � x= | D]5 } t | t � rg | j | � qB | j d | � qB Wd S( Ni Rb Re R� ( RJ R� R� Rj RR R� R� ( R; t tupR] ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR� s s ( RB RC R� R� R< R R� R� R� t unpackTuple( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR� B s R� c B s) e Z e j Z d Z e j Z d � Z RS( c C s� | | _ | | | _ | j | | | | | � | j j | j j � � | j j | j j � � | j j d k r� | j j t � n d S( N( R� R� t" _FunctionCodeGenerator__super_initR� t setFreeVarsR t setCellVarst get_cell_varst generatorR/ R� R ( R; R� R� R� R� R* ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR< � s N( RB RC Rn R< R� R/ R� R� R� ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR� � s R c B s) e Z e j Z d Z e j Z d � Z RS( c C su | | _ | | | _ | j | | d | | � | j j | j j � � | j j | j j � � | j j t � d S( Ni ( R� R� t! _GenExprCodeGenerator__super_initR� R� R R� R� R� R ( R; t gexpR� R� R* ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR< � s N( RB RC Rn R< R� R/ R� R� R� ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR � s t AbstractClassCodec B s# e Z d � Z d � Z d � Z RS( c C s� | j | _ | | _ t j | j | j d d d d �| _ | j � t | j | j � d d �} | j j | j � � | j j t � | j r� | j | j � n d S( NR� i R� i R� ( RY R� R� R R� R& R� R� R R4 R� Rz R� R^ R� R R� R� ( R; R� R� R� R� ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR< � s c C s | j S( N( R� ( R; ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR � s c C s+ | j j � | j d � | j d � d S( Nt LOAD_LOCALSR� ( R� R� R� ( R; ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR� � s ( RB RC R< R R� ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR� � s R� c B s) e Z e j Z d Z e j Z d � Z RS( c C s� | | _ | | | _ | j | | | � | j j | j j � � | j j | j j � � | j | � | j d d � | j d � | j r� | j d | j � | j d � n d S( NR' RB RC R� Ri ( R� R� t _ClassCodeGenerator__super_initR� R� R R� R� R� R� R� R� ( R; R� R� R� ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR< � s N( RB RC Rn R< R� R/ R� R� R� ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR� � s c C s� g } g } d } x� t t | � � D]� } | | } t | t � rT | j | � q% t | t � r� | j t | d | � � | j t j | � � | d } q% t d | � q% W| | | f S( s& Generate an arg list marking TupleArgsi i i s unexpect argument type:( R� R� Rj t strt appendRR R t extendR t flattenR3 ( t arglistR t extrat countR� R] ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR� � s c C s# t � } t | | d d �| j S( s5 Find the op (DELETE, LOAD, STORE) in an AssTuple treeR� i ( t OpFinderR R ( R_ R� ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRc � s R c B s& e Z d � Z d � Z e Z e Z RS( c C s d | _ d S( N( R/ R ( R; ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR< � s c C s@ | j d k r | j | _ n | j | j k r< t d � n d S( Ns mixed ops in stmt( R R/ R7 R3 ( R; R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRh � s ( RB RC R< Rh Ra R� ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR � s t Delegatorc B s e Z d Z d � Z d � Z RS( s Base class to support delegation for augmented assignment nodes To generator code for augmented assignments, we use the following wrapper classes. In visitAugAssign, the left-hand expression node is visited twice. The first time the visit uses the normal method for that node . The second time the visit uses a different method that generates the appropriate code to perform the assignment. These delegator classes wrap the original AST nodes in order to support the variant visit methods. c C s | | _ d S( N( t obj( R; R ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR< � s c C s t | j | � S( N( R� R ( R; t attr( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt __getattr__� s ( RB RC Ri R< R ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR � s t AugGetattrc B s e Z RS( ( RB RC ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR � s t AugNamec B s e Z RS( ( RB RC ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR � s t AugSlicec B s e Z RS( ( RB RC ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR s t AugSubscriptc B s e Z RS( ( RB RC ( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyR s c C s t | j | � S( N( t wrapperRw ( R_ ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyRk s t __main__(M RR RK RJ RN t syst cStringIOR t compilerR R R R R R R R t compiler.constsR R R R R R R R R R R R R R t compiler.pyassemR t version_infoRJ t AttributeErrorR� R� R� R� R� R+ R/ R# R: R2 R1 R" RT Rm Rn R� RF RD RE R� R� R R� R� R� Rc R R R R R R t Getattrt Namet Slicet SubscriptR Rk RB t argvt file( ( ( s* /usr/lib64/python2.7/compiler/pycodegen.pyt <module> s� ""(@ + � � � � U>