^Yc@sdZddlZddlZddlZddlZejdCkZejdDkZejdEkZejdFkZ yej e Z Wne k reZ nXeeerdndZyddlZWnSek r ddlZd ejjkr!dGej_ed ej_q!nXdd lmZerCd Zn d Zer^dZn dZe rejejfZ nejejej!fZ de"fdYZ#dZ$de#dZ&dZ'de(fdYZ)de)fdYZ*de(fdYZ+de(fdYZ,de*fdYZ-de-fd YZ.d!e-fd"YZ/d#e-fd$YZ0d%e/fd&YZ1d'e)fd(YZ2d)e)fd*YZ3d+e*fd,YZ4d-e*fd.YZ5d/e)fd0YZ6d1e"fd2YZ7d3e7fd4YZ8d5e7fd6YZ9d7e7fd8YZ:d9e7fd:YZ;d;e;fd<YZ<d=d>d?gZ=d@Z>dAe(fdBYZ?dS(Hs] Main module. Implement the central Checker class. Also, it models the Bindings and Scopes. iNiiiit __builtin__tbuiltinstdecorator_listcCs|jS(N(t decorators(ts((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pyt s(tmessagescCstt|jjS(N(tstrtunicodet__name__tupper(t node_class((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pyt getNodeType&scCs |jjS(N(R R (R ((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pyR *scCsit|tjtjfr%|jgSt|tjre|j|jgg|jD]}|g^qQSdS(N(t isinstancetasttIft TryFinallytbodyt TryExcepttorelsethandlers(tnthdl((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pytgetAlternatives/s cCs`t|tjr|jgSt|tjr\|j|jgg|jD]}|g^qHSdS(N(R RRRtTryRR(RR((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pyR5s t _FieldsOrdercBs eZdZdZdZRS(sFix order of AST node fields.cCs^|j}d|kr!dj}n!d|kr9dj}n dj}tt|d|dtS(Ntitert generatorstvaluetkeytreverse(t_fieldstfindttupletsortedtTrue(tselfR tfieldst key_first((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pyt _get_fieldsDs      cCs|j|||<}|S(N(R'(R$R R%((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pyt __missing__Os(R t __module__t__doc__R'R((((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pyRAs cCs5i}x(|D] }|j|dd||usR.R#tFalseR2(R RtStrRthasattrR;tTupleR!teltstNumRtNamet VariableKeyR#R?R2R+R8tPY33t NameConstantRtUnhandledKeyType(R.tresulttconstants_lookup((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pyR<os(! tBindingcBs2eZdZdZdZdZdZRS(sr Represents the binding of a value to a name. The checker uses this to keep track of which names have been bound and which names have not. See L{Assignment} for a special type of binding that is checked with stricter rules. @ivar used: pair of (L{Scope}, node) indicating the scope and the node that this binding was last used. cCs||_||_t|_dS(N(R8tsourceR?tused(R$R8RM((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pyt__init__s  cCs|jS(N(R8(R$((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pyt__str__scCs)d|jj|j|jjt|fS(Ns#<%s object %r from line %r at 0x%x>(R0R R8RMtlinenotid(R$((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pyt__repr__s  cCst|to|j|jkS(N(R t DefinitionR8(R$tother((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pyt redefiness(R R)R*RORPRSRV(((s2/tmp/pip-build-EndXZ2/pyflakes/pyflakes/checker.pyRLs     RTcBseZdZRS(s7 A binding that defines a function or a class. 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A submodule import is a special case where the root module is implicitly imported, without an 'as' clause, and the submodule is also imported. Python does not restrict which attributes of the root module may be used. This class is only used when the submodule import is without an 'as' clause. pyflakes handles this case by registering the root module name in the scope, allowing any attribute of the root module to be accessed. 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