ó î%![c @s”dZddlZddlZddlZddlmZddlmZddlmZej dƒZ ej j j Zej dƒZejƒZejd(kr±d Zd Zn d Zd ZeddhZdddddddddh Zd„Zdefd„ƒYZdd„Zd„Zdefd„ƒYZd efd!„ƒYZd"efd#„ƒYZd$efd%„ƒYZd&efd'„ƒYZ dS()sXThis module contains base classes and functions for the nodes and some inference utils. iÿÿÿÿN(tcontext(t exceptions(tutilsinterpreter.objectmodeltmanageriitbuiltinst__bool__t __builtin__t __nonzero__s .propertysabc.abstractpropertytcached_propertytcachedpropertyt lazypropertyt lazy_propertytreifyt lazyattributetlazy_attributet LazyPropertytlazycsItj|jƒƒrtSd„|jƒDƒ‰t‡fd†tDƒƒS(NcSs2h|](}|tjk r|jdƒd’qS(t.iÿÿÿÿ(Rt Uninferabletsplit(t.0tname((s,lib/python2.7/site-packages/astroid/bases.pys 4s c3s|]}|ˆkVqdS(N((RR(tstripped(s,lib/python2.7/site-packages/astroid/bases.pys 6s(t PROPERTIESt intersectiontdecoratornamestTruetanytPOSSIBLE_PROPERTIES(tmeth((Rs,lib/python2.7/site-packages/astroid/bases.pyt _is_property1stProxycBs5eZdZdZdd„Zd„Zdd„ZRS(sa simple proxy objectcCs|dk r||_ndS(N(tNonet_proxied(tselftproxied((s,lib/python2.7/site-packages/astroid/bases.pyt__init__>s cCsF|dkrt|jdƒS||jkr6|j|St|j|ƒS(NR!(tgetattrt __class__t__dict__R!(R"R((s,lib/python2.7/site-packages/astroid/bases.pyt __getattr__Bs   ccs |VdS(N((R"R((s,lib/python2.7/site-packages/astroid/bases.pytinferIsN(t__name__t __module__t__doc__R R!R$R(R)(((s,lib/python2.7/site-packages/astroid/bases.pyR9s   ccsd}t}|dk r0|j}|jƒ}nd}tjƒ}xª|D]¢}|tjkro|Vt}qIn|j ||ƒ|_y,x%|j d|ƒD]}|Vt}qšWWqIt j k rÉqIqIt j k rêtjVt}qIXqIW|st j dd|d|d|ƒ‚ndS(sGReturn an iterator on statements inferred by each statement in *stmts*.Rs.Inference failed for all members of {stmts!r}.tstmtstframeN(R tFalset lookupnametclonet contextmodtInferenceContextRRRt _infer_nameR)RtNameInferenceErrortInferenceError(R-RR.tstmttinferredR((s,lib/python2.7/site-packages/astroid/bases.pyt _infer_stmtsMs4    cCs¢t|j|d|ƒdƒ}|r›t|dƒr›|jƒsFtjSxR|j|d|ƒD]8}|tjkru|St|jd|ƒƒ}|j ƒSWntjS(NRtinfer_call_result( tnexttigetattrR thasattrtcallableRRR:R)t bool_value(tinstancet method_nameRRtvalueR8((s,lib/python2.7/site-packages/astroid/bases.pyt_infer_method_result_truthms t BaseInstancecBsPeZdZdZd„Zded„Zdd„Zdd„Z dd„Z RS(sNAn instance base class, which provides lookup methods for potential instances.cCsdS(Ns Instance of((R"((s,lib/python2.7/site-packages/astroid/bases.pyt display_type‚scCsäy|jj||ƒ}Wnƒtjk rž|jrW||jkrW|jj|ƒgS|rv|jj||dtƒStj tjd|d|d|ƒƒnX|rày!||jj||dtƒSWqàtjk rÜqàXn|S(Nt class_contextttargett attributeR( R!t instance_attrRtAttributeInferenceErrortspecial_attributestlookupR%R/Rtreraise(R"RRt lookupclasstvalues((s,lib/python2.7/site-packages/astroid/bases.pyR%…s$ ccsE|stjƒ}nyi|j|j|fƒr4dS|j||dtƒ}x.t|j||ƒ|d|ƒD] }|VqnWWnÀtj k r@}yu|jj j dkrÊt j tjt|ƒƒn|jj||dtƒ}x|j||ƒD] }|VqøWWqAtj k r<}t j tjt|ƒƒqAXnXdS(sinferred getattrNRNR.tClassDefRF(R2R3tpushR!R%R/R9t _wrap_attrRRJR&R*RRMR6tvarsR<(R"RRtget_attrR7terrortattrs((s,lib/python2.7/site-packages/astroid/bases.pyR<Ÿs$  ccsèxá|D]Ù}t|tƒr^t|ƒrMx0|j||ƒD] }|Vq;Wqàt||ƒVqt|dƒrÛ|jdkrÛ|jƒjƒ|j krÓ|j j rÓ|j j djdkrÓt||ƒVqqÓn|Vq|VqWdS(s7wrap bound methods of attrs in a InstanceMethod proxiesRsiR"N( t isinstancet UnboundMethodRR:t BoundMethodR=Rt statementtscopeR!targs(R"RVRtattrR8((s,lib/python2.7/site-packages/astroid/bases.pyRRºs   % ccs›t}xg|jjd|ƒD]P}|tjks|jƒ rDqnx%|j||ƒD]}t}|VqWWqW|s—tj d|d|d|ƒ‚ndS(s4infer what a class instance is returning when calledt__call__tnodetcallerRN( R/R!R<RRR>R:RRR6(R"R`RR8R_tres((s,lib/python2.7/site-packages/astroid/bases.pyR:Ñs N( R*R+R,R RKRERR%R<RRR:(((s,lib/python2.7/site-packages/astroid/bases.pyRD}s   tInstancecBsbeZdZejd„ƒZd„Zd„Zd„Zd„Z d„Z d„Z d d„Z RS( s-A special node representing a class instance.cCs tjƒS(N(t objectmodelt InstanceModel(((s,lib/python2.7/site-packages/astroid/bases.pytãscCs)d|jjƒj|jjt|ƒfS(Ns(R!trootRtid(R"((s,lib/python2.7/site-packages/astroid/bases.pyt__repr__ås cCs d|jjƒj|jjfS(NsInstance of %s.%s(R!RfR(R"((s,lib/python2.7/site-packages/astroid/bases.pyt__str__éscCs:y|jjddtƒtSWntjk r5tSXdS(NR^RF(R!R%R/RRRJ(R"((s,lib/python2.7/site-packages/astroid/bases.pyR>ís cCs |jjƒS(N(R!tqname(R"((s,lib/python2.7/site-packages/astroid/bases.pytpytypeôscCsdS(Ns Instance of((R"((s,lib/python2.7/site-packages/astroid/bases.pyRE÷scCs›tjƒ}tjdgƒ|_||_yt|t|ƒ}WnTtjtj fk r–yt|d|ƒ}Wq—tj tjfk r’t SXnX|S(sVInfer the truth value for an Instance The truth value of an instance is determined by these conditions: * if it implements __bool__ on Python 3 or __nonzero__ on Python 2, then its bool value will be determined by calling this special method and checking its result. * when this method is not defined, __len__() is called, if it is defined, and the object is considered true if its result is nonzero. 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