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9f3167ebdf
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/60621 Test Plan: Imported from OSS Reviewed By: jamesr66a Differential Revision: D29493619 Pulled By: migeed-z fbshipit-source-id: 1bd3fb02c90ae5b394869a474b2e6b06af0d4791
20 lines
842 B
Python
20 lines
842 B
Python
from torch.fx.proxy import Proxy
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def annotate(val, type):
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# val could be either a regular value (not tracing)
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# or fx.Proxy (tracing)
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if isinstance(val, Proxy):
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if val.node.type:
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raise RuntimeError(f"Tried to annotate a value that already had a type on it!"
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f" Existing type is {val.node.type} "
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f"and new type is {type}. "
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f"This could happen if you tried to annotate a function parameter "
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f"value (in which case you should use the type slot "
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f"on the function signature) or you called "
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f"annotate on the same value twice")
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else:
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val.node.type = type
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return val
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else:
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return val
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