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annotate mercurial/interfaces/util.py @ 45356:f025b97f3758

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repository: introduce constant for internal phase repo requirement and use it In future we will like to much cleaner logic around which requirement is for working copy and which can go in store. To start with that, we first need to de-clutter the requirement values spread around and replace them with constants. Differential Revision: https://phab.mercurial-scm.org/D8912
author Pulkit Goyal <7895pulkit@gmail.com>
date Fri, 07 Aug 2020 18:01:48 +0530
parents 687b865b95ad
children 6000f5b25c9b
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1 # util.py - Utilities for declaring interfaces.
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2 #
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3 # Copyright 2018 Gregory Szorc <gregory.szorc@gmail.com>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 # zope.interface imposes a run-time cost due to module import overhead and
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9 # bookkeeping for declaring interfaces. So, we use stubs for various
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10 # zope.interface primitives unless instructed otherwise.
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11
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12 from __future__ import absolute_import
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13
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14 from .. import encoding
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15
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16 if encoding.environ.get(b'HGREALINTERFACES'):
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17 from ..thirdparty.zope import interface as zi
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18
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19 Attribute = zi.Attribute
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20 Interface = zi.Interface
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21 implementer = zi.implementer
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22 else:
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23
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24 class Attribute(object):
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25 def __init__(self, __name__, __doc__=b''):
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26 pass
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27
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28 class Interface(object):
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29 def __init__(
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30 self, name, bases=(), attrs=None, __doc__=None, __module__=None
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31 ):
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32 pass
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33
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34 def implementer(*ifaces):
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35 def wrapper(cls):
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36 return cls
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37
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38 return wrapper