From cfce9c21da272a28cb77aea32352c6ac53ac68fc Mon Sep 17 00:00:00 2001
From: Bartlomiej Brzozowski <bart.brzozowski@janeasystems.com>
Date: Fri, 12 Jun 2020 14:04:11 +0200
Subject: [PATCH] win,fs: improve realpathSync performance

Moving knownHard object improves realpathSync perfomance.
This results in require being 10% faster on Windows and
realpathSync itself 50x faster.
Ref: https://github.com/nodejs/node/issues/28946
---
 lib/fs.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/fs.js b/lib/fs.js
index b0581927514888..3c1e964d22d815 100644
--- a/lib/fs.js
+++ b/lib/fs.js
@@ -1562,6 +1562,7 @@ if (isWindows) {
 }
 
 const emptyObj = ObjectCreate(null);
+const knownHard = ObjectCreate(null);
 function realpathSync(p, options) {
   if (!options)
     options = emptyObj;
@@ -1581,7 +1582,6 @@ function realpathSync(p, options) {
   }
 
   const seenLinks = ObjectCreate(null);
-  const knownHard = ObjectCreate(null);
   const original = p;
 
   // Current character position in p