author | Martin von Zweigbergk <martinvonz@google.com> |
Thu, 10 Jun 2021 14:47:14 -0700 | |
changeset 47436 | 3ee036c6f834 |
parent 37180 | 68ee61822182 |
permissions | -rw-r--r-- |
37178
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1 |
############################################################################## |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
2 |
# |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
3 |
# Copyright (c) 2002 Zope Foundation and Contributors. |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
4 |
# All Rights Reserved. |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
5 |
# |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
6 |
# This software is subject to the provisions of the Zope Public License, |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
7 |
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution. |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
8 |
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
9 |
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
10 |
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
11 |
# FOR A PARTICULAR PURPOSE. |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
12 |
# |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
13 |
############################################################################## |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
14 |
"""Adapter-style interface registry |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
15 |
|
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
16 |
See Adapter class. |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
17 |
""" |
37180
68ee61822182
thirdparty: port zope.interface to relative imports
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37178
diff
changeset
|
18 |
|
68ee61822182
thirdparty: port zope.interface to relative imports
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37178
diff
changeset
|
19 |
from __future__ import absolute_import |
68ee61822182
thirdparty: port zope.interface to relative imports
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37178
diff
changeset
|
20 |
|
68ee61822182
thirdparty: port zope.interface to relative imports
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37178
diff
changeset
|
21 |
from .interface import Declaration |
37178
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
22 |
|
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
23 |
def _flatten(implements, include_None=0): |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
24 |
|
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
25 |
try: |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
26 |
r = implements.flattened() |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
27 |
except AttributeError: |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
28 |
if implements is None: |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
29 |
r=() |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
30 |
else: |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
31 |
r = Declaration(implements).flattened() |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
32 |
|
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
33 |
if not include_None: |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
34 |
return r |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
35 |
|
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
36 |
r = list(r) |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
37 |
r.append(None) |
943d77fc07a3
thirdparty: vendor zope.interface 4.4.3
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
38 |
return r |