From 242f1019c879ff5f522498cb329a68146e4d3a53 Mon Sep 17 00:00:00 2001
From: elf-mouse <ifmouz@gmail.com>
Date: Thu, 22 Apr 2021 17:22:52 +0800
Subject: [PATCH] fix: times is not iterable bug

---
 src/watch-run.ts | 28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)

diff --git a/src/watch-run.ts b/src/watch-run.ts
index 8380404ea..6123f77bf 100644
--- a/src/watch-run.ts
+++ b/src/watch-run.ts
@@ -31,20 +31,24 @@ export function makeWatchRun(
     } else {
       const times = compiler.fileTimestamps;
 
-      for (const [filePath, date] of times) {
-        const key = instance.filePathKeyMapper(filePath);
-        const lastTime = lastTimes.get(key) || startTime;
+      if (times) {
+        for (const [filePath, date] of times) {
+          const key = instance.filePathKeyMapper(filePath);
+          const lastTime = lastTimes.get(key) || startTime;
 
-        if (
-          !date ||
-          date === 'ignore' ||
-          (date.timestamp || date.safeTime) <= lastTime
-        ) {
-          continue;
-        }
+          if (
+            !date ||
+            date === 'ignore' ||
+            (date.timestamp || date.safeTime) <= lastTime
+          ) {
+            continue;
+          }
 
-        lastTimes.set(key, date.timestamp || date.safeTime);
-        promises.push(updateFile(instance, key, filePath, loader, loaderIndex));
+          lastTimes.set(key, date.timestamp || date.safeTime);
+          promises.push(
+            updateFile(instance, key, filePath, loader, loaderIndex)
+          );
+        }
       }
 
       // On watch update add all known dts files expect the ones in node_modules