From: Evan You <yyx990803@gmail.com>
Date: Thu, 23 Nov 2023 15:07:51 +0000 (+0800)
Subject: perf: optimize position cloning
X-Git-Tag: v3.4.0-alpha.2~19
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=20732366b9b3530d33b842cf1fc985919afb9317;p=thirdparty%2Fvuejs%2Fcore.git

perf: optimize position cloning
---

diff --git a/packages/compiler-core/src/utils.ts b/packages/compiler-core/src/utils.ts
index 7e3eb46a81..0d6e0f5fe1 100644
--- a/packages/compiler-core/src/utils.ts
+++ b/packages/compiler-core/src/utils.ts
@@ -36,7 +36,7 @@ import {
   GUARD_REACTIVE_PROPS,
   WITH_MEMO
 } from './runtimeHelpers'
-import { isString, isObject, extend, NOOP } from '@vue/shared'
+import { isString, isObject, NOOP } from '@vue/shared'
 import { PropsExpression } from './transforms/transformElement'
 import { parseExpression } from '@babel/parser'
 import { Expression } from '@babel/types'
@@ -181,7 +181,11 @@ export function advancePositionWithClone(
   numberOfCharacters: number = source.length
 ): Position {
   return advancePositionWithMutation(
-    extend({}, pos),
+    {
+      offset: pos.offset,
+      line: pos.line,
+      column: pos.column
+    },
     source,
     numberOfCharacters
   )