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sneaxhuh
marked this pull request as ready for review
October 19, 2026 08:06
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Problem
Repeated traversals of shared DAGs repeat work. Recursive caching risks deep paths and double-counting overlapping descendants.
Fix
Add an opt-in iterative MemoizedWalker with exact distinct-node aggregation. Existing Traverse behavior is unchanged.
Testing
Traversal tests and Go vet pass, including a 50,000-node chain, randomized DAGs, cache fetch counts, errors, cancellation, and benchmarks.
Companion Kubo PR: ipfs/kubo#11088 (update and CI pending).