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

dagutil: use revlog.parentrevs() for resolving parent revisions...

dagutil: use revlog.parentrevs() for resolving parent revisions And remove parents() since it is no longer used. revlog.parentrevs() is almost the same as parents(). The main difference is that parentrevs() can return nullrev. dagop.headrevs() already handles nullrev. We add an inline check for nullrev in the other call site to account for the difference. .. api:: parents() removed from dagutil classes Use parentrevs() on the storage object instead. Differential Revision: https://phab.mercurial-scm.org/D4328

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