From: Evan You <yyx990803@gmail.com>
Date: Wed, 16 Oct 2019 19:32:48 +0000 (-0400)
Subject: perf: skip hasScopeRef check if there are no scope vars
X-Git-Tag: v3.0.0-alpha.0~394
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b980ddb607f12e82b86cffbc96051c8b41f0da8b;p=thirdparty%2Fvuejs%2Fcore.git

perf: skip hasScopeRef check if there are no scope vars
---

diff --git a/packages/compiler-core/src/transforms/vSlot.ts b/packages/compiler-core/src/transforms/vSlot.ts
index d39d15f456..94089f297f 100644
--- a/packages/compiler-core/src/transforms/vSlot.ts
+++ b/packages/compiler-core/src/transforms/vSlot.ts
@@ -342,7 +342,7 @@ function hasScopeRef(
   node: TemplateChildNode | IfBranchNode | SimpleExpressionNode | undefined,
   ids: TransformContext['identifiers']
 ): boolean {
-  if (!node) {
+  if (!node || Object.keys(ids).length === 0) {
     return false
   }
   switch (node.type) {