This required the following:
- A generation task (taskA) to already be running for any chunk (chunkA)
- A chunk (chunkB) is requested for generation, and the task (taskB) to do the generation
is commenced immediately
- chunkB generation promise is aborted (e.g. due to chunk unload) and
taskB is orphaned
- chunkB is subsequently re-requested, but ends up in the generation
queue because taskB is still running
- taskA completes and drains the generation queue
- chunkB attempts to be populated a second time, but taskB has not yet
been collected, resulting in an assertion failure.
This bug has been appearing intermittently ever since PM 4.0 release.
For most users there is no obvious effect since production servers don't
have assertions enabled; however, it's unclear what kind of weird side
effects this bug may have had.
this does come at a performance cost, but is necessary for metadata expansion.
we finally concede that this is not going to happen without BC breaks, however small they might be ...
The following API constants have been added:
- tile\BrewingStand::BREW_TIME_TICKS
The following public API methods have been added:
- utils\BrewingStandSlot->getSlotNumber() : int
- CraftingManager->getPotionTypeRecipes() : array<string, array<string, PotionTypeRecipe>>
- CraftingManager->getPotionContainerChangeRecipes() : array<int, array<string, PotionContainerChangeRecipe>>
- CraftingManager->registerPotionTypeRecipe(PotionTypeRecipe $recipe) : void
- CraftingManager->registerPotionContainerChangeRecipe(PotionContainerChangeRecipe $recipe) : void
The following classes have been added:
- BrewingRecipe
- PotionTypeRecipe
- PotionContainerChangeRecipe
- BrewItemEvent
- BrewingFuelUseEvent
- PotionFinishBrewingSound
this was caused by 083a1e1ff6.
This was discovered by a new PHPStan rule I'm working on, which disallows overwriting the values of parameter variables. During the refactor of this function to correct the error, another error appeared: Variable might not be defined.
This is yet another excellent example of why mutability is bad.
