o bw#@sdZddlZddlmZddlmZddlmZddlmZddlm Z ddlm Z dd lm Z dd lm Z ej Zd d Zd dZd'ddZd'ddZd'ddZd'ddZd'ddZd'ddZd'ddZddZdd Zd!d"Zd#d$Zd'd%d&ZdS)(z Various helper utilities. N)basescontext) exceptions)manager)nodes) raw_building) scoped_nodes)utilcCst|}||_|SN)rZ build_classparent)cls_namebuiltinsproxyrN/var/www/secure340b-portal/env/lib/python3.10/site-packages/astroid/helpers.py_build_proxy_classs rcCsRt|tjr|jtkrd}nd}nt|tjrd}nt|tjr$d}t ||S)NZbuiltin_function_or_methodfunctionmethod) isinstancer LambdarootnameBUILTINSr BoundMethod UnboundMethodr)rrr rrr_function_type"s    rccst}|j}|p t}|j|dD]?}t|tjr2|j r)| }|r)|Vq| ddVqt|tj t jfrBt||Vqt|tjrOtd|Vq|jVqdS)Nrtypermodule)rZAstroidManagerZbuiltins_module contextmodInferenceContextinferrr ClassDefnewstyle metaclassgetattrrrrrModulerZ_proxied)noderZastroid_managerrinferredr$rrr _object_type/s$    r)cCsPz tt||}Wn tjytjYSwt|dks|s"tjSt|dS)aUObtain the type of the given node This is used to implement the ``type`` builtin, which means that it's used for inferring type calls, as well as used in a couple of other places in the inference. The node will be inferred first, so this function can support all sorts of objects, as long as they support inference. r)setr)rInferenceErrorr Uninferablelenlist)r'rtypesrrr object_typeDs   r1cCsxt|ttfs |f}n|}|tjurtjSdd|D}|D]}|tjur*td|D] }||kr8dSq.qdS)NcSs"g|] }t|tjs |ntjqSr)rrInstancer r-).0itemrrr asz,_object_type_is_subclass..z&arg 2 must be a type or tuple of typesTF)rtupler/r r-rAstroidTypeErrormro)obj_type class_or_seqrZ class_seqklassZ obj_subclassrrr_object_type_is_subclassWs"    r<cCs(t||}|tjur tjSt|||dS)zCheck if a node 'isinstance' any node in class_or_seq :param node: A given node :param class_or_seq: Union[nodes.NodeNG, Sequence[nodes.NodeNG]] :rtype: bool :raises AstroidTypeError: if the given ``classes_or_seq`` are not types r)r1r r-r<)r'r:rr9rrrobject_isinstancers r=cCs*t|tjstdj|dt|||dS)arCheck if a type is a subclass of any node in class_or_seq :param node: A given node :param class_or_seq: Union[Nodes.NodeNG, Sequence[nodes.NodeNG]] :rtype: bool :raises AstroidTypeError: if the given ``classes_or_seq`` are not types :raises AstroidError: if the type of the given node cannot be inferred or its type's mro doesn't work z"{node} needs to be a ClassDef noder'r)rrr" TypeErrorformatr<)r'r:rrrrobject_issubclasss rAcCsjz |j|d}t|}Wn tjyYdSwzt|WdStjy*YdSty4|YSw)zReturn the inferred value for the given node. Return None if inference failed or if there is some ambiguity (more than one node has been inferred). rN)r!nextrr, StopIteration)r'rZinferitvaluerrr safe_infers   rEcCsjz|jWSty Ynw|jD]}t||d}t|tjr)||us)t||ds/d|_dSqd|_dS)z=Return true if all base classes of a class could be inferred.rFT)Z_all_bases_knownAttributeErrorrrErr r"has_known_bases)r;rbaseresultrrrrGs$     rGcCsZttt||fs tjt|j|jgsdSz ||ddvWStjy,tjw)NF)allmaprGrZ_NonDeducibleTypeHierarchyr#r8ZMroErrorZtype1Ztype2rrr _type_checksrNcCs t||S)z(Check if *type1* is a subtype of *typ2*.rNrMrrr is_subtype rPcCs t||S)z+Check if *type2* is a supertype of *type1*.rOrMrrr is_supertyperQrRcCst}tj|gd|_z1|jd|dD]&}t|tjsq|j||dD]}t|t j r9t|j t r9|WSq$qWdSt jyHYdSw)zGet the value as an index for the given instance. If an instance provides an __index__ method, then it can be used in some scenarios where an integer is expected, for instance when multiplying or subscripting a list. )args __index__rN)rr Z CallContextZ callcontextigetattrrrrinfer_call_resultrConstrDintrr,)r'rr(rIrrrclass_instance_as_indexs"  rYc Csddlm}t||d}|dus|tjurtj|dt|tj r.t|j t t fr.t |j St|tjtjtj|fr?t |jSt|tjrJt |jSzt||d}t|jd|d}Wntjymtd|wt|||}t|tj r|dkr|j Std |) aInfer length of given node object :param Union[nodes.ClassDef, nodes.Instance] node: :param node: Node to infer length of :raises AstroidTypeError: If an invalid node is returned from __len__ method or no __len__ method exists :raises InferenceError: If the given node cannot be inferred or if multiple nodes are inferred :rtype int: Integer length of node r) FrozenSetrNr>__len__z object of type '{}' has no len()z builtins.intz/'{}' object cannot be interpreted as an integer)Zastroid.objectsrZrEr r-rr,rrrWrDbytesstrr.ListSetTupleeltsDictitemsr1rBrUZAttributeInferenceErrorr7r@ZpytyperV)r'rrZZ inferred_nodeZ node_typeZlen_callZ result_of_lenrrr object_lens:           rdr )__doc__rZ builtins_modZastroidrrrrrrrr r __name__rrrr)r1r<r=rArErGrNrPrRrYrdrrrrs2