From 5be85fa619e983248fe6891afd33d921ccb42af4 Mon Sep 17 00:00:00 2001
From: Benjamin Pasero <benjpas@microsoft.com>
Date: Mon, 13 Nov 2017 11:17:06 +0100
Subject: [PATCH] Uncaught TypeError: Cannot read property 'toString' of null
 (fixes #38191)

---
 src/vs/base/node/extfs.ts | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/vs/base/node/extfs.ts b/src/vs/base/node/extfs.ts
index b17a41aa17d..c41a1992540 100644
--- a/src/vs/base/node/extfs.ts
+++ b/src/vs/base/node/extfs.ts
@@ -454,11 +454,14 @@ function normalizePath(path: string): string {
 export function watch(path: string, onChange: (type: string, path: string) => void): fs.FSWatcher {
 	const watcher = fs.watch(path);
 	watcher.on('change', (type, raw) => {
-		let file = raw.toString();
-		if (platform.isMacintosh) {
-			// Mac: uses NFD unicode form on disk, but we want NFC
-			// See also https://github.com/nodejs/node/issues/2165
-			file = strings.normalizeNFC(file);
+		let file: string = null;
+		if (raw) { // https://github.com/Microsoft/vscode/issues/38191
+			file = raw.toString();
+			if (platform.isMacintosh) {
+				// Mac: uses NFD unicode form on disk, but we want NFC
+				// See also https://github.com/nodejs/node/issues/2165
+				file = strings.normalizeNFC(file);
+			}
 		}
 
 		onChange(type, file);
-- 
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