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annotate mercurial/thirdparty/zope/interface/_flatten.py @ 46244:fb69b51b4daa

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ci: avoid a global before_script definition This removes the implicit assumption that all jobs are test runs. Differential Revision: https://phab.mercurial-scm.org/D9723
author Dan Villiom Podlaski Christiansen <danchr@gmail.com>
date Mon, 11 Jan 2021 15:16:36 +0100
parents 68ee61822182
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 ##############################################################################
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2 #
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3 # Copyright (c) 2002 Zope Foundation and Contributors.
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4 # All Rights Reserved.
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5 #
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6 # This software is subject to the provisions of the Zope Public License,
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7 # Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
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8 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
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9 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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10 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
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11 # FOR A PARTICULAR PURPOSE.
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12 #
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13 ##############################################################################
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14 """Adapter-style interface registry
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15
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16 See Adapter class.
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17 """
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18
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19 from __future__ import absolute_import
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20
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21 from .interface import Declaration
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22
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23 def _flatten(implements, include_None=0):
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24
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25 try:
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26 r = implements.flattened()
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27 except AttributeError:
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28 if implements is None:
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29 r=()
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30 else:
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31 r = Declaration(implements).flattened()
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32
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33 if not include_None:
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34 return r
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35
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36 r = list(r)
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37 r.append(None)
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38 return r