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java-topology/defects/unreal/patch/CLEAN.md
russell@unturf.com 4d73070504 unreal/godot-deeper: CWE-407 findings 
unreal: clone unavailable (EpicGames/UnrealEngine requires GitHub auth) — CLEAN.md added.

godot-0011: GraphEditArranger ORDER/PRED macros use Vector<StringName>.find() O(N) linear
scan called per-connection inside _calculate_threshold and _place_block loops.
Fix: pre-build HashMap<StringName,int> order map and HashMap<StringName,StringName>
predecessor map for O(1) look-up. Severity: MEDIUM (~6x at N=200 nodes).

godot-0012: SpringBoneSimulator3D::_process_collisions uses LocalVector<ObjectID>.has()
and .find() O(N) linear scan inside S×C nested loops over settings and collision paths.
Fix: pre-build HashSet<ObjectID> + HashMap<ObjectID,int> for O(1) look-up.
Severity: MEDIUM-HIGH (~20x at N=500, S=50, C=100).

Both: 2/2 unit tests PASS.
2026-03-30 09:50:15 -04:00

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UnrealEngine — CWE-407 Scan Result: CLONE UNAVAILABLE

The EpicGames/UnrealEngine GitHub repository requires an authorized Epic Games account to access. The clone attempted on 2026-03-30 failed with HTTP 404 (private/gated repo).

No source code was available for scanning.

Action required: If an authorized clone becomes available at ~/git/UnrealEngine, re-run the CWE-407 scan focusing on:

  • Engine/Source/Runtime/ — TArray::Contains(, TArray::Find(, TArray::IndexOfByKey(
  • Asset dependency deduplication
  • Blueprint node visited set
  • Material instance override scanning
  • Streaming manager tracked objects
  • GC root set membership

Target scan date: 2026-03-30