From 5285fb6c2269e71ed7b3bcff765b3a8febd72260 Mon Sep 17 00:00:00 2001
From: daiwei <daiwei521@126.com>
Date: Tue, 6 May 2025 17:22:20 +0800
Subject: [PATCH] fix(codegen): ensure mapping is added only if node source is
 available

---
 packages/compiler-core/src/codegen.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/packages/compiler-core/src/codegen.ts b/packages/compiler-core/src/codegen.ts
index 70116cfb6..6b4559fab 100644
--- a/packages/compiler-core/src/codegen.ts
+++ b/packages/compiler-core/src/codegen.ts
@@ -188,7 +188,9 @@ function createCodegenContext(
               name = content
             }
           }
-          addMapping(node.loc.start, name)
+          if (node.loc.source) {
+            addMapping(node.loc.start, name)
+          }
         }
         if (newlineIndex === NewlineType.Unknown) {
           // multiple newlines, full iteration
@@ -225,7 +227,7 @@ function createCodegenContext(
             context.column = code.length - newlineIndex
           }
         }
-        if (node && node.loc !== locStub) {
+        if (node && node.loc !== locStub && node.loc.source) {
           addMapping(node.loc.end)
         }
       }