Mihaela Mihaljevic
6f8222a840
The Unique Particle Attribution check no longer inlines group references or caps. A new CompositionalDeterminism engine computes first/followlast over particle identities and summarizes each xs:group once, so a multiply-referenced nested group whose inlined Glushkov automaton would be 2^K positions is checked in O(nodes * particles^2) time. ContentModelDeterminism now delegates to it and the inlining position automaton plus positionCap are deleted, closing the last named interactive-safety resource-bound blocker (production-readiness stopper #4) and the silent under-rejection the cap caused (stopper #3). The compositional engine was proven verdict-equivalent to the prior inlining automaton by a differential over the entire XSTS corpus (zero divergences) before replacing it. The followlast detail was essential: a first attempt that emitted a repeating end-item's loop-back and the suffix-first as separate decision sets under-detected 13 XSTS content models; the differential caught every one. Verification: XSTS gate unchanged (invalid-schemas-accepted 15, valid-schemas- rejected 0, instance buckets held); SchemaDeterminismGroupBlowupTests compiles a 2^20-position model without hanging and rejects an ambiguous one the old cap would have skipped (WASI uses a smaller depth, native time limits gated off WASI); full suite, style, namespacing, and WASM all pass. The per-particle model and QName-only overlap are preserved, so the false-positive direction stays at zero. |
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| .. | ||
| design | ||
| plans | ||
| rules | ||
| benchmarks.md | ||
| onboarding-antigravity.md | ||
| production-readiness.md | ||
| release-hurdles.md | ||
| roadmap.md | ||
| schema-validity-burndown.md | ||
| validation-coverage-registry.txt | ||
| validation-field-registry.txt | ||
| xsts-deviations.md | ||