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538647fe1f
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/63888 Test Plan: Imported from OSS Reviewed By: pbelevich Differential Revision: D30523133 Pulled By: jamesr66a fbshipit-source-id: b04cc0d842a74862f42ecba98b757310cd2ec7b0
29 lines
1.3 KiB
Python
29 lines
1.3 KiB
Python
from ._compatibility import compatibility
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_help_mutation = """\
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If you are attempting to modify the kwargs or args of a torch.fx.Node object,
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instead create a new copy of it and assign the copy to the node:
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new_args = ... # copy and mutate args
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node.args = new_args
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"""
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def _no_mutation(self, *args, **kwargs):
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raise NotImplementedError(f"'{type(self).__name__}' object does not support mutation. {_help_mutation}")
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def _create_immutable_container(base, mutable_functions):
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container = type('immutable_' + base.__name__, (base,), {})
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for attr in mutable_functions:
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setattr(container, attr, _no_mutation)
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return container
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immutable_list = _create_immutable_container(list,
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['__delitem__', '__iadd__', '__imul__', '__setitem__', 'append',
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'clear', 'extend', 'insert', 'pop', 'remove'])
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immutable_list.__reduce__ = lambda self: (immutable_list, (tuple(iter(self)),))
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compatibility(is_backward_compatible=True)(immutable_list)
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immutable_dict = _create_immutable_container(dict, ['__delitem__', '__setitem__', 'clear', 'pop', 'popitem', 'update'])
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immutable_dict.__reduce__ = lambda self: (immutable_dict, (iter(self.items()),))
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compatibility(is_backward_compatible=True)(immutable_dict)
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