From d624db8491a69d635d18f2c963f4cfbb8b3ec100 Mon Sep 17 00:00:00 2001
From: Xiao <784487301@qq.com>
Date: Sun, 24 Aug 2025 18:51:25 +0800
Subject: [PATCH] perf: avoid running unnecessary code (#19829)

---
 lib/FileSystemInfo.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lib/FileSystemInfo.js b/lib/FileSystemInfo.js
index 8ae2f7ffc..3ec089c56 100644
--- a/lib/FileSystemInfo.js
+++ b/lib/FileSystemInfo.js
@@ -658,6 +658,9 @@ class SnapshotOptimization {
 	 * @returns {void}
 	 */
 	optimize(newSnapshot, capturedFiles) {
+		if (capturedFiles.size === 0) {
+			return;
+		}
 		/**
 		 * @param {SnapshotOptimizationEntry} entry optimization entry
 		 * @returns {void}
@@ -2336,6 +2339,9 @@ class FileSystemInfo {
 		 * @param {ManagedFiles} capturedFiles captured files
 		 */
 		const processCapturedFiles = (capturedFiles) => {
+			if (capturedFiles.size === 0) {
+				return;
+			}
 			switch (mode) {
 				case 3:
 					this._fileTshsOptimization.optimize(snapshot, capturedFiles);
@@ -2424,6 +2430,9 @@ class FileSystemInfo {
 		 * @param {ManagedContexts} capturedDirectories captured directories
 		 */
 		const processCapturedDirectories = (capturedDirectories) => {
+			if (capturedDirectories.size === 0) {
+				return;
+			}
 			switch (mode) {
 				case 3:
 					this._contextTshsOptimization.optimize(snapshot, capturedDirectories);
@@ -2569,6 +2578,9 @@ class FileSystemInfo {
 		 * @param {ManagedMissing} capturedMissing captured missing
 		 */
 		const processCapturedMissing = (capturedMissing) => {
+			if (capturedMissing.size === 0) {
+				return;
+			}
 			this._missingExistenceOptimization.optimize(snapshot, capturedMissing);
 			for (const path of capturedMissing) {
 				const cache = this._fileTimestamps.get(path);