Optimize schema-comparator diffing performance#94
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…schemas) Key optimizations: - Eliminate intermediate Vec allocations via diff_into(&mut Vec) pattern - Single-pass field matching: merge removals + common diffs into one iteration - Unified diff_directives_into replacing 3 separate directive functions - Ptr equality fast path for identical schemas (0µs) - HashMap fallback for types with 64+ fields (O(1) lookups on large types) - CriticalityLevel enum to avoid Cow string allocations during sorting - Early exits for empty directives/arguments, #[inline] hints on hot paths - Pre-allocate changes Vec with capacity 256 - Criterion benchmark suite with real schema fixtures Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Optimize schema-comparator diffing performance (~65% faster on large schemas)
Key optimizations:
Note: this is a manually curated (with the help of Claude) and cleaned up version of an
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