From 9c00001a269eee49abb1fd27829f3c7bd0023f5e Mon Sep 17 00:00:00 2001
From: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>
Date: Wed, 7 Dec 2022 09:51:27 -0800
Subject: [PATCH] Have `__makeTemplateObject` freeze template strings objects
 if possible.

---
 src/compiler/factory/emitHelpers.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/compiler/factory/emitHelpers.ts b/src/compiler/factory/emitHelpers.ts
index faa93c77be8..ca8a9773244 100644
--- a/src/compiler/factory/emitHelpers.ts
+++ b/src/compiler/factory/emitHelpers.ts
@@ -663,7 +663,12 @@ export const templateObjectHelper: UnscopedEmitHelper = {
     priority: 0,
     text: `
             var __makeTemplateObject = (this && this.__makeTemplateObject) || function (cooked, raw) {
-                if (Object.defineProperty) { Object.defineProperty(cooked, "raw", { value: raw }); } else { cooked.raw = raw; }
+                if (Object.freeze) {
+                    Object.freeze(Object.defineProperty(cooked, "raw", { value: Object.freeze(raw) }));
+                }
+                else {
+                    cooked.raw = raw;
+                }
                 return cooked;
             };`
 };