v-for optimization: only filter watcher list if there are frags removed

yyx990803 · yyx990803 · commit 3b82e2bb96db · 2016-02-26T19:38:34.000-05:00
diff --git a/src/directives/public/for.js b/src/directives/public/for.js
@@ -176,7 +176,9 @@ const vFor = {
       }
     }
     this.vm._vForRemoving = false
-    this.vm._watchers = this.vm._watchers.filter(w => w.active)
+    if (removalIndex) {
+      this.vm._watchers = this.vm._watchers.filter(w => w.active)
+    }
 
     // Final pass, move/insert new fragments into the
     // right place.

Original file line number	Diff line number	Diff line change
`@@ -176,7 +176,9 @@ const vFor = {`
`176`	`176`	`}`
`177`	`177`	`}`
`178`	`178`	`this.vm._vForRemoving = false`
`179`		`- this.vm._watchers = this.vm._watchers.filter(w => w.active)`
	`179`	`+ if (removalIndex) {`
	`180`	`+ this.vm._watchers = this.vm._watchers.filter(w => w.active)`
	`181`	`+ }`
`180`	`182`
`181`	`183`	`// Final pass, move/insert new fragments into the`
`182`	`184`	`// right place.`