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comparison mercurial/util.py @ 52877:9a8815128679

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typing: add type hints to the `mercurial.util.transactional` class
author Matt Harbison <matt_harbison@yahoo.com>
date Sat, 08 Feb 2025 00:14:20 -0500
parents 7a6fc0e2a89a
children 7ca9c05ec335
comparison
equal deleted inserted replaced
52876:7a6fc0e2a89a 52877:9a8815128679
1426 1426
1427 class transactional(abc.ABC): 1427 class transactional(abc.ABC):
1428 """Base class for making a transactional type into a context manager.""" 1428 """Base class for making a transactional type into a context manager."""
1429 1429
1430 @abc.abstractmethod 1430 @abc.abstractmethod
1431 def close(self): 1431 def close(self) -> None:
1432 """Successfully closes the transaction.""" 1432 """Successfully closes the transaction."""
1433 1433
1434 @abc.abstractmethod 1434 @abc.abstractmethod
1435 def release(self): 1435 def release(self) -> None:
1436 """Marks the end of the transaction. 1436 """Marks the end of the transaction.
1437 1437
1438 If the transaction has not been closed, it will be aborted. 1438 If the transaction has not been closed, it will be aborted.
1439 """ 1439 """
1440 1440
1441 def __enter__(self): 1441 def __enter__(self) -> Self:
1442 return self 1442 return self
1443 1443
1444 def __exit__(self, exc_type, exc_val, exc_tb): 1444 def __exit__(self, exc_type, exc_val, exc_tb) -> None:
1445 try: 1445 try:
1446 if exc_type is None: 1446 if exc_type is None:
1447 self.close() 1447 self.close()
1448 finally: 1448 finally:
1449 self.release() 1449 self.release()