Mercurial > hg
annotate mercurial/typelib.py @ 51630:513597087b89
branching: merge stable into default
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 10 Jun 2024 12:12:56 +0200 |
parents | 8147abc05794 |
children | f3b34386d3e0 |
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1 # typelib.py - type hint aliases and support |
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2 # |
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3 # Copyright 2022 Matt Harbison <matt_harbison@yahoo.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 import typing |
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9 |
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10 # Note: this is slightly different from pycompat.TYPE_CHECKING, as using |
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11 # pycompat causes the BinaryIO_Proxy type to be resolved to ``object`` when |
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12 # used as the base class during a pytype run. |
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13 TYPE_CHECKING = typing.TYPE_CHECKING |
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14 |
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15 |
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16 # The BinaryIO class provides empty methods, which at runtime means that |
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17 # ``__getattr__`` on the proxy classes won't get called for the methods that |
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18 # should delegate to the internal object. So to avoid runtime changes because |
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19 # of the required typing inheritance, just use BinaryIO when typechecking, and |
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20 # ``object`` otherwise. |
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21 if TYPE_CHECKING: |
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22 from typing import ( |
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23 BinaryIO, |
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24 ) |
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25 |
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26 BinaryIO_Proxy = BinaryIO |
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27 else: |
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28 BinaryIO_Proxy = object |