Add DanceUIGraph shim mode

[Kyle-Ye]

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 31.14%. Comparing base (5d84ebd) to head (718fcef).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
Sources/OpenAttributeGraphShims/OAGShims.swift	0.00%	1 Missing ⚠️

❌ Your patch status has failed because the patch coverage (0.00%) is below the target coverage (70.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

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##             main     #225   +/-   ##
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  Coverage   31.14%   31.14%           
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  Files          71       71           
  Lines        2630     2630           
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  Hits          819      819           
  Misses       1811     1811           

Flag	Coverage Δ
ubuntu	12.03% <0.00%> (ø)

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Files with missing lines	Coverage Δ
...rces/OpenAttributeGraphShims/Attribute+Debug.swift	0.00% <ø> (ø)
Sources/OpenAttributeGraphShims/OAGShims.swift	66.66% <0.00%> (ø)

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[augmentcode]

🤖 Augment PR Summary

Summary: Introduces a new shim mode that targets ByteDance’s DanceUIGraph backend, allowing OpenAttributeGraphShims to be built against a different attribute-graph implementation.

Changes:

• Adds the OPENATTRIBUTESHIMS_DANCEUIGRAPH build flag and dependency wiring in Package.swift (local path or exact version via env).
• Adds a new C/ObjC shim target (OpenAttributeGraphDanceUIGraphShims) that exposes Swift-callable wrappers around DanceUIGraph/DanceUISubgraph APIs.
• Adds a large Swift adapter (Adapter/DanceUIGraph.swift) implementing Graph/Subgraph/Attribute/Rule APIs on top of DanceUIGraph.
• Refactors existing Compute / AttributeGraph shims into dedicated adapter files for clearer vendor separation.
• Updates debug-description handling to avoid the previous deep inspection path when building in DanceUIGraph mode.
• Extends AttributeGraphVendor to include .danceUIGraph.

Technical Notes: The DanceUIGraph shim mode links c++ and z on Apple platforms and sets minimum platforms to iOS 13 / macOS 10.15 for that configuration.

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[augmentcode]

Review completed. 3 suggestions posted.

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[augmentcode]

Sources/OpenAttributeGraphShims/Adapter/DanceUIGraph.swift:555: Subgraph.index’s getter always returns 0, so reading back an index after setting it will be incorrect and may break callers relying on stable subgraph indices. If DanceUIGraph doesn’t expose an index getter, consider making this write-only or documenting that reads are unsupported in this shim mode.

Severity: medium

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[augmentcode]

Sources/OpenAttributeGraphShims/Adapter/DanceUIGraph.swift:995: init(_details:) ignores seed, but Hashable/== are based on _details (including seed), so round-tripping AnyWeakAttribute(_details:) can change identity. This can also make instances reconstructed from stored Details compare unequal depending on base.subgraph_id.

Severity: medium

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[augmentcode]

Sources/OpenAttributeGraphShims/Attribute+Debug.swift:28: In the DanceUIGraph branch, _debugDescription(indent:) only prefixes the first line of debugDescription, so multi-line base.debugDescription output won’t be indented consistently. This also changes the debug string format compared to other vendors, which may surprise callers relying on the structured output.

Severity: low

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