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3/3 for caching changes.
Design doc: https://docs.google.com/document/d/1CLhFbzZGbEKgvZTUwLuGbFY-rfZNJVTi6f3PkoZT9qI/edit?usp=sharing

Adds support for caching AttributedLabel string normalization results.
Adds support for skipping calls to setNeedsViewHierarchyUpdate when Environment and Element value changes are equivalent.
Adds support for caching MeasureableStorage measurements.

* maxg/cache_1_equivalency:
  include other TestKeys
  Fix testkey
* maxg/cache_2_envcache:
  include other TestKeys
  Fix testkey
* maxg/cache_2_envcache:
  include other TestKeys
  Fix testkey
* maxg/cache_2_envcache:
  include other TestKeys
  Fix testkey
* maxg/cache_2_envcache:
  More tests
  Tests and fixes
* main:
  Bump macOS, Xcode, Swift, and Tuist versions. (#580)
  chore: release 6.1.0
  Fix AccessibilityContainer behaviour when it contains a UICollectionView or UITableView
  Ignoring slight keyboard overlaps in ScrollView (#575)
* maxg/cache_2_envcache:
  Existentials for Xcode 15
* maxg/cache_2_envcache:
  Enable logging for test.
  Tweak internal env api.
  Log guard
* maxg/cache_2_envcache:
  Release 6.3.0
  Assert in debug mode when large content viewer is not placed inside an interaction container
  Expose largeContentViewerInteraction on LargeContentViewer backing view via protocol
  Stopped installing xcodes in GitHub Actions file
  chore: Release 6.2.0
  Support accessibility large content viewer
  Squash
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@watt watt left a comment

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Can you rebase this on the maxg/cache_2_envcache branch? Looks like it's got some changes from the other 2 stacked PRs mixed in.

// Shortcut: If both environments were empty, nothing changed.
if oldValue.isEmpty && environment.isEmpty { return }
// Shortcut: If there are no changes to the environment, then, well, nothing changed.
if let layoutMode, layoutMode.options.skipUnneededSetNeedsViewHierarchyUpdates && oldValue.isEquivalent(
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self.layoutMode is just one customization point — you should probably use something like:

self.layoutMode ?? RenderContext.current?.layoutMode ?? environment.layoutMode

which I think will match the actual mode used during layout.

@maxg-square maxg-square changed the base branch from main to maxg/cache_2_envcache October 2, 2025 21:18
Comment on lines 214 to 216
// Store bounding shapes in this cache to avoid costly recalculations
private var boundingShapeCache: [Link: Link.BoundingShape] = [:]

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what happened to the deleted stuff in this file? intentional change, or just a bad merge?

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Looking good overall, just still a few open questions/comments from the last review on this one.

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Neat! I'd love to try this out in the Catalog app. Would it be possible to spin up a branch with the new layout settings enabled?

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4 participants