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[ASStackLayoutSpec] Performance improvements (#2470)

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* Initial commit for ASStackLayoutSpec improvements

* Remove the lock in ASStackLayoutSpec and make the ASStackLayoutSpecStyle const

I think we don't need lock here as the style already has a lock while we set the value

* Add ASStackLayoutSpecItem  that replaces layout specific items

* Prevent baseline pass if not needed

* Update comments
This commit is contained in:
Michael Schneider
2016-10-30 12:07:18 -07:00
committed by GitHub
parent ca203158da
commit 611894329a
7 changed files with 185 additions and 140 deletions
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2
AsyncDisplayKit/Private/ASStackPositionedLayout.h
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@@ -14,7 +14,7 @@
/** Represents a set of laid out and positioned stack layout children. */
struct ASStackPositionedLayout {
const std::vector<ASLayout *> sublayouts;
const std::vector<ASStackLayoutSpecItem> items;
const CGFloat crossSize;
/** Given an unpositioned layout, computes the positions each child should be placed at. */