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Remove necessity to use view to access rangeController in ASTableNode, ASCollectionNode #1103

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merged 1 commit into from
Sep 19, 2018

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maicki
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@maicki maicki commented Sep 8, 2018

While setting the interface state of a node in certain circumstances we hit the path that first grabs the instance lock and calls -[ASCollectionNode clearContents] while the view is not loaded. Within clearContents we need access to the rangeController from the view by calling self.view.rangeController what will trigger creating the view and the assert linked in the issue will be thrown as didLoad should not be called with the instance locked held.

For now I removed the need to use the view to access the rangeController what should fix the situation described above and linked here: #1094

Further todos should be that we improve the locking impelementation around this area. Currently -[ASDisplayNode clearContents] is accessing instance variables and therefore should be prefixed with locked_, but -[ASCollectionNode clearContents] is accessing the rangeController by calling self instead of using the instance variable. The follow up issue is here: #1104

@maicki maicki force-pushed the MSAccessRangeControllerWithoutViewNeeded branch from 004e02b to 7d860d1 Compare September 12, 2018 16:40
@maicki maicki force-pushed the MSAccessRangeControllerWithoutViewNeeded branch 2 times, most recently from 6bf8ee6 to 5c983e6 Compare September 15, 2018 15:32
@TextureGroup TextureGroup deleted a comment Sep 15, 2018
@TextureGroup TextureGroup deleted a comment Sep 15, 2018
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maicki commented Sep 17, 2018

@nguyenhuy @Adlai-Holler Would appreciate a review. Thanks!

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I'm a jerk for delaying your review Michael.

@property (weak, nonatomic) id <ASCollectionDataSource> dataSource;
@interface _ASCollectionPendingState : NSObject {
@public
std::vector<std::vector<ASRangeTuningParameters>> _tuningParameters;
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Not specific to this diff, but we should probably use ASRangeTuningParameters[ASLayoutRangeModeCount][ASLayoutRangeTypeCount] _tuningParameters here so we get static allocation.

@maicki maicki force-pushed the MSAccessRangeControllerWithoutViewNeeded branch from fd7ecae to 9f605c0 Compare September 18, 2018 14:45
@maicki maicki force-pushed the MSAccessRangeControllerWithoutViewNeeded branch from 9f605c0 to f4e4475 Compare September 18, 2018 20:22
@maicki maicki merged commit cd608c9 into master Sep 19, 2018
mikezucc pushed a commit to mikezucc/Texture that referenced this pull request Oct 2, 2018
@maicki maicki deleted the MSAccessRangeControllerWithoutViewNeeded branch October 17, 2018 16:45
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2 participants