Force this InstanceState to act as though its weakref has been GC'ed. this is used for test code that has to test reactions to objects being GC'ed. We can't reliably force GCs to happen under all CI circumstances.
(self)
| 512 | self._detach() |
| 513 | |
| 514 | def _force_dereference(self) -> None: |
| 515 | """Force this InstanceState to act as though its weakref has |
| 516 | been GC'ed. |
| 517 | |
| 518 | this is used for test code that has to test reactions to objects |
| 519 | being GC'ed. We can't reliably force GCs to happen under all |
| 520 | CI circumstances. |
| 521 | |
| 522 | """ |
| 523 | |
| 524 | # if _strong_obj is set, then our object would not be getting |
| 525 | # GC'ed (at least within the scope of what we use this for in tests). |
| 526 | # so make sure this is not set |
| 527 | assert self._strong_obj is None |
| 528 | |
| 529 | obj = self.obj() |
| 530 | if obj is None: |
| 531 | # object was GC'ed and we're done! woop |
| 532 | return |
| 533 | |
| 534 | del obj |
| 535 | |
| 536 | self._cleanup(self.obj) |
| 537 | self.obj = lambda: None # type: ignore |
| 538 | |
| 539 | def _cleanup(self, ref: weakref.ref[_O]) -> None: |
| 540 | """Weakref callback cleanup. |