upstream/mercurial-mirror Files · mercurial/thirdparty/zope/interface/_flatten.py

typing: add type hints to `mercurial.dirstatemap`...

typing: add type hints to `mercurial.dirstatemap` Somewhere since 10db46e128d4, pytype stopped being able to infer the type of the `identity` field. Fill in some obvious other hints along the way. These hints caused pytype to flag a missing attribute: File "/mnt/c/Users/Matt/hg/mercurial/dirstatemap.py", line 714, in _v1_map: No attribute 'stat' on mercurial.windows.cachestat [attribute-error] In Union[Any, mercurial.posix.cachestat, mercurial.windows.cachestat] File "/mnt/c/Users/Matt/hg/mercurial/dirstatemap.py", line 715, in _v1_map: No attribute 'stat' on mercurial.windows.cachestat [attribute-error] In Union[Any, mercurial.posix.cachestat, mercurial.windows.cachestat] In practice, the `identity` field is NOT replaced with None if it isn't cacheable, so it's probably safer to just add the field and set it to None, since that check is already in place on line 715.

Gregory Szorc - - Load All Authors

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      ##############################################################################

      #

      # Copyright (c) 2002 Zope Foundation and Contributors.

      # All Rights Reserved.

      #

      # This software is subject to the provisions of the Zope Public License,

      # Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.

      # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED

      # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

      # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS

      # FOR A PARTICULAR PURPOSE.

      #

      ##############################################################################

      """Adapter-style interface registry

      See Adapter class.

      """

      from __future__ import absolute_import

      from .interface import Declaration

      def _flatten(implements, include_None=0):

          try:

              r = implements.flattened()

          except AttributeError:

              if implements is None:

                  r=()

              else:

                  r = Declaration(implements).flattened()

          if not include_None:

              return r

          r = list(r)

          r.append(None)

          return r

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				##############################################################################
				#
				# Copyright (c) 2002 Zope Foundation and Contributors.
				# All Rights Reserved.
				#
				# This software is subject to the provisions of the Zope Public License,
				# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
				# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
				# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
				# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
				# FOR A PARTICULAR PURPOSE.
				#
				##############################################################################
				"""Adapter-style interface registry

				See Adapter class.
				"""

				from __future__ import absolute_import

				from .interface import Declaration

				def _flatten(implements, include_None=0):

				try:
				r = implements.flattened()
				except AttributeError:
				if implements is None:
				r=()
				else:
				r = Declaration(implements).flattened()

				if not include_None:
				return r

				r = list(r)
				r.append(None)
				return r