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rust-pyo3: dagop submodule implementation...

rust-pyo3: dagop submodule implementation This is the first demonstration that the passing of objects through the Python interpreter from `rustext` to `pyo3_rustext` actually works. In the Python tests, we conflate the presence of the `pyo3_rustext` package with that of `rustext`, as we do not plan to support building one and not the other (we hope to convert fully to PyO3 soon). The skipping is actually done by the base test class. The implementation of `rank` is as trivial as it was in `hg-cpython`, yet it required to be able to convert exceptions from `vcsgraph`.

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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.

      from __future__ import annotations

      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,

              util,

              windows,

          )

          BinaryIO_Proxy = BinaryIO

          CacheStat = Union[

              posix.cachestat,

              windows.cachestat,

              util.uncacheable_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.

				from __future__ import annotations

				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,
				util,
				windows,
				)

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

				BinaryIO_Proxy = object
				CacheStat = Any
				NodeConstants = Any

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