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33 lines
997 B
33 lines
997 B
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, list):
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return [self._visit(n) for n in node]
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elif isinstance(node, ast.AST):
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return self.visit(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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cls = type(node).__name__
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# handle nodes that are not part of the AST
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if not hasattr(to, cls):
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return
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new_node = getattr(to, cls)()
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for field in node._fields:
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setattr(new_node, field, self._visit(getattr(node, field)))
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for attr in getattr(node, '_attributes'):
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if hasattr(node, attr):
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setattr(new_node, attr, getattr(node, attr))
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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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