Mercurial > public > mercurial-scm > hg
comparison mercurial/util.py @ 45146:a0791bfd9cfa
util: enhance `nullcontextmanager` to be able to return __enter__ result
This makes its functionality and signature equivalent to Python 3.7?s
contextlib.nullcontext().
| author | Manuel Jacob <me@manueljacob.de> |
|---|---|
| date | Thu, 16 Jul 2020 23:49:04 +0200 |
| parents | 02b17231f6c3 |
| children | 89a2afe31e82 |
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| 45145:aea246bc04bd | 45146:a0791bfd9cfa |
|---|---|
| 1379 finally: | 1379 finally: |
| 1380 tr.release() | 1380 tr.release() |
| 1381 | 1381 |
| 1382 | 1382 |
| 1383 @contextlib.contextmanager | 1383 @contextlib.contextmanager |
| 1384 def nullcontextmanager(): | 1384 def nullcontextmanager(enter_result=None): |
| 1385 yield | 1385 yield enter_result |
| 1386 | 1386 |
| 1387 | 1387 |
| 1388 class _lrucachenode(object): | 1388 class _lrucachenode(object): |
| 1389 """A node in a doubly linked list. | 1389 """A node in a doubly linked list. |
| 1390 | 1390 |