From cde2c0671b00d4f6111fcbd7aa76e45872f20b0c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=B1=B1=E5=90=B9=E8=89=B2=E5=BE=A1=E5=AE=88?=
 <85992002+KazariEX@users.noreply.github.com>
Date: Fri, 11 Oct 2024 11:07:07 +0800
Subject: [PATCH] fix(compiler): clone loc to `ifNode` (#12131)

fix vuejs/language-tools#4911
---
 packages/compiler-core/src/parser.ts         | 4 ++++
 packages/compiler-core/src/transforms/vIf.ts | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/packages/compiler-core/src/parser.ts b/packages/compiler-core/src/parser.ts
index 0d66d2055f4..95c5e129f25 100644
--- a/packages/compiler-core/src/parser.ts
+++ b/packages/compiler-core/src/parser.ts
@@ -933,6 +933,10 @@ function getLoc(start: number, end?: number): SourceLocation {
   }
 }
 
+export function cloneLoc(loc: SourceLocation): SourceLocation {
+  return getLoc(loc.start.offset, loc.end.offset)
+}
+
 function setLocEnd(loc: SourceLocation, end: number) {
   loc.end = tokenizer.getPos(end)
   loc.source = getSlice(loc.start.offset, end)
diff --git a/packages/compiler-core/src/transforms/vIf.ts b/packages/compiler-core/src/transforms/vIf.ts
index caefa197efe..54c505407a3 100644
--- a/packages/compiler-core/src/transforms/vIf.ts
+++ b/packages/compiler-core/src/transforms/vIf.ts
@@ -30,6 +30,7 @@ import {
 import { ErrorCodes, createCompilerError } from '../errors'
 import { processExpression } from './transformExpression'
 import { validateBrowserExpression } from '../validateExpression'
+import { cloneLoc } from '../parser'
 import { CREATE_COMMENT, FRAGMENT } from '../runtimeHelpers'
 import { findDir, findProp, getMemoedVNodeCall, injectProp } from '../utils'
 import { PatchFlags } from '@vue/shared'
@@ -110,7 +111,7 @@ export function processIf(
     const branch = createIfBranch(node, dir)
     const ifNode: IfNode = {
       type: NodeTypes.IF,
-      loc: node.loc,
+      loc: cloneLoc(node.loc),
       branches: [branch],
     }
     context.replaceNode(ifNode)