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33 lines
1 KiB
Python
33 lines
1 KiB
Python
from astroid import MANAGER, arguments, nodes, inference_tip, UseInferenceDefault
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def infer_namespace(node, context=None):
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callsite = arguments.CallSite.from_call(node, context=context)
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if not callsite.keyword_arguments:
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# Cannot make sense of it.
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raise UseInferenceDefault()
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class_node = nodes.ClassDef("Namespace", "docstring")
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class_node.parent = node.parent
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for attr in set(callsite.keyword_arguments):
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fake_node = nodes.EmptyNode()
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fake_node.parent = class_node
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fake_node.attrname = attr
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class_node.instance_attrs[attr] = [fake_node]
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return iter((class_node.instantiate_class(),))
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def _looks_like_namespace(node):
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func = node.func
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if isinstance(func, nodes.Attribute):
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return (
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func.attrname == "Namespace"
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and isinstance(func.expr, nodes.Name)
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and func.expr.name == "argparse"
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)
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return False
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MANAGER.register_transform(
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nodes.Call, inference_tip(infer_namespace), _looks_like_namespace
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)
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