Optimize file system enumeration pattern matching with specialized delegates#123041

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Copilot wants to merge 9 commits intomainfrom

copilot/optimize-file-system-enumeration

Commits on Jan 9, 2026

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Optimize file system enumeration pattern matching with specialized delegates

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stephentoub
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Extract wildcard character constants to static fields

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Address PR feedback: use SearchValues<char>, avoid string allocations, combine IsDirectory check with matcher

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Remove captured locals for start/length - compute span slices inline in delegates

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Remove unnecessary AsSpan() calls and switch over (useExtendedWildcards, entryType) tuple

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Commits on Jan 11, 2026

Add special cases for prefix*suffix and prefix???suffix patterns

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Commits on Jan 12, 2026

Add special case for literal patterns (no wildcards) using Equals

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Commits on Jan 22, 2026

Merge branch 'main' into copilot/optimize-file-system-enumeration
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