Merge pull request #175 from alibaba/copilot/sub-pr-173-again

perf(page-controller): cache compiled regexes in `globToRegex`
2026-03-09 22:34:58 +08:00
parent 0c124c3b44 5852054e3a
commit 5873e68d63
1 changed files with 9 additions and 2 deletions
--- a/packages/page-controller/src/dom/index.ts
+++ b/packages/page-controller/src/dom/index.ts
@@ -74,9 +74,16 @@ export function getFlatTree(config: DomConfig): FlatDomTree {
 	return elements
 }

+const globRegexCache = new Map<string, RegExp>()
+
 function globToRegex(pattern: string): RegExp {
-	const escaped = pattern.replace(/[.+^${}()|[\]\\]/g, '\\$&')
-	return new RegExp(`^${escaped.replace(/\*/g, '.*')}$`)
+	let regex = globRegexCache.get(pattern)
+	if (!regex) {
+		const escaped = pattern.replace(/[.+^${}()|[\]\\]/g, '\\$&')
+		regex = new RegExp(`^${escaped.replace(/\*/g, '.*')}$`)
+		globRegexCache.set(pattern, regex)
+	}
+	return regex
 }

 function matchAttributes(