[ty] Compact use-def binding interner keys#26193
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charliermarsh merged 2 commits intoJun 22, 2026
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Typing conformance resultsNo changes detected ✅Current numbersThe percentage of diagnostics emitted that were expected errors held steady at 94.37%. The percentage of expected errors that received a diagnostic held steady at 89.00%. The number of fully passing files held steady at 94/134. |
Memory usage reportMemory usage unchanged ✅ |
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charliermarsh
approved these changes
Jun 22, 2026
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Store compact IDs in the use-def bindings reverse index instead of cloning complete
Bindingsvalues as hash-map keys.This reduces allocations by 4.7 MB on attrs, 8.1 MB on Flake8, and 12.5 MB on AnyIO with neutral timing. Walltime benchmarks improve by 1-2%.
The main downside is that this introduces a
HashTablewhere changingBindingsrequires updating the manual hash function