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- from __future__ import annotations
- from contextlib import contextmanager
- from typing import Final, Iterator
- # These are global mutable state. Don't add anything here unless there's a very
- # good reason.
- class StrictOptionalState:
- # Wrap this in a class since it's faster that using a module-level attribute.
- def __init__(self, strict_optional: bool) -> None:
- # Value varies by file being processed
- self.strict_optional = strict_optional
- @contextmanager
- def strict_optional_set(self, value: bool) -> Iterator[None]:
- saved = self.strict_optional
- self.strict_optional = value
- try:
- yield
- finally:
- self.strict_optional = saved
- state: Final = StrictOptionalState(strict_optional=False)
- find_occurrences: tuple[str, str] | None = None
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