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Benoit Girard
25bfa287f6
* Add feature flag: enableStrongMemoryCleanup Add a feature flag that will test doing a recursive clean of an unmount node. This will disconnect the fiber graph making leaks less severe. * Detach sibling pointers in old child list When a fiber is deleted, it's still part of the previous (alternate) parent fiber's list of children. Because children are a linked list, an earlier sibling that's still alive will be connected to the deleted fiber via its alternate: live fiber --alternate--> previous live fiber --sibling--> deleted fiber We can't disconnect `alternate` on nodes that haven't been deleted yet, but we can disconnect the `sibling` and `child` pointers. Will use this feature flag to test the memory impact. * Combine into single enum flag I combined `enableStrongMemoryCleanup` and `enableDetachOldChildList` into a single enum flag. The flag has three possible values. Each level is a superset of the previous one and performs more aggressive clean up. We will use this to compare the memory impact of each level. * Add Flow type to new host config method * Re-use existing recursive clean up path We already have a recursive loop that visits every deleted fiber. We can re-use that one for clean up instead of adding another one. Co-authored-by: Andrew Clark <git@andrewclark.io>