44 lines
1.1 KiB
Python
44 lines
1.1 KiB
Python
import ast
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import gast
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def _generate_translators(to):
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class Translator(ast.NodeTransformer):
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def _visit(self, node):
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if isinstance(node, ast.AST):
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return self.visit(node)
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elif isinstance(node, list):
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return [self._visit(n) for n in node]
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else:
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return node
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def generic_visit(self, node):
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class_name = type(node).__name__
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if not hasattr(to, class_name):
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# handle nodes that are not part of the AST
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return
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cls = getattr(to, class_name)
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new_node = cls(
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**{
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field: self._visit(getattr(node, field))
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for field in node._fields
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if hasattr(node, field)
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}
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)
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for attr in node._attributes:
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try:
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setattr(new_node, attr, getattr(node, attr))
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except AttributeError:
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pass
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return new_node
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return Translator
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AstToGAst = _generate_translators(gast)
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GAstToAst = _generate_translators(ast)
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