view mercurial/typelib.py @ 51764:2f88df88f5b9

manifest: type and fix unhexlify

Some part of that function seems to date back from Python 2. It raise question
about whether this function is useful or not, but let us just fix it for now.
This was caught by pytype.

# typelib.py - type hint aliases and support
#
# Copyright 2022 Matt Harbison <[e-mail]>
#
# 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]