upstream/mercurial-mirror Files · mercurial/typelib.py

shelve: raise an error when loading a corrupt state file in an impossible case...

shelve: raise an error when loading a corrupt state file in an impossible case The old return statement was flagged by pytype 2023.06.16 running under python 3.10.11. No idea why it isn't caught in CI running the same pytype with py3.7. This function is only called by `unshelvecmd()` (which first checks that either `--abort` or `--continue` is specified), and `hgabortunshelve()` and `hgcontinueunshelve()`, which locally apply `--abort` or `--continue` respectively. Therefore, there is no other way to call this, and this error should never be seen, but pytype can't figure that out on its own. Given that the abort case clears the state, it seems reasonable to defensively code this and not make that a blanket `else` case, on the off chance a 3rd way of calling this appears in the future.

Matt Harbison - - Load All Authors

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      # typelib.py - type hint aliases and support

      #

      # Copyright 2022 Matt Harbison <matt_harbison@yahoo.com>

      #

      # This software may be used and distributed according to the terms of the

      # GNU General Public License version 2 or any later version.

      import typing

      from typing import (

          Callable,

      )

      # Note: this is slightly different from pycompat.TYPE_CHECKING, as using

      # pycompat causes the BinaryIO_Proxy type to be resolved to ``object`` when

      # used as the base class during a pytype run.

      TYPE_CHECKING = typing.TYPE_CHECKING

      # The BinaryIO class provides empty methods, which at runtime means that

      # ``__getattr__`` on the proxy classes won't get called for the methods that

      # should delegate to the internal object.  So to avoid runtime changes because

      # of the required typing inheritance, just use BinaryIO when typechecking, and

      # ``object`` otherwise.

      if TYPE_CHECKING:

          from typing import (

              BinaryIO,

              Union,

          )

          from . import (

              node,

              posix,

              windows,

          )

          BinaryIO_Proxy = BinaryIO

          CacheStat = Union[posix.cachestat, windows.cachestat]

          NodeConstants = node.sha1nodeconstants

      else:

          from typing import Any

          BinaryIO_Proxy = object

          CacheStat = Any

          NodeConstants = Any

      # scmutil.getuipathfn() related callback.

      UiPathFn = Callable[[bytes], bytes]

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				# typelib.py - type hint aliases and support
				#
				# Copyright 2022 Matt Harbison <matt_harbison@yahoo.com>
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.

				import typing

				from typing import (
				Callable,
				)

				# Note: this is slightly different from pycompat.TYPE_CHECKING, as using
				# pycompat causes the BinaryIO_Proxy type to be resolved to ``object`` when
				# used as the base class during a pytype run.
				TYPE_CHECKING = typing.TYPE_CHECKING


				# The BinaryIO class provides empty methods, which at runtime means that
				# ``__getattr__`` on the proxy classes won't get called for the methods that
				# should delegate to the internal object. So to avoid runtime changes because
				# of the required typing inheritance, just use BinaryIO when typechecking, and
				# ``object`` otherwise.
				if TYPE_CHECKING:
				from typing import (
				BinaryIO,
				Union,
				)

				from . import (
				node,
				posix,
				windows,
				)

				BinaryIO_Proxy = BinaryIO
				CacheStat = Union[posix.cachestat, windows.cachestat]
				NodeConstants = node.sha1nodeconstants
				else:
				from typing import Any

				BinaryIO_Proxy = object
				CacheStat = Any
				NodeConstants = Any

				# scmutil.getuipathfn() related callback.
				UiPathFn = Callable[[bytes], bytes]