From 9ed7b8167cf2c7efa3967ec7ff7375be647425c6 Mon Sep 17 00:00:00 2001
From: skirtle <65301168+skirtles-code@users.noreply.github.com>
Date: Mon, 29 Apr 2024 07:37:11 +0100
Subject: [PATCH] fix(runtime-core): attrs should be readonly in functional
 components (#10767)

---
 packages/runtime-core/__tests__/componentProps.spec.ts | 5 ++---
 packages/runtime-core/src/componentRenderUtils.ts      | 2 +-
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/packages/runtime-core/__tests__/componentProps.spec.ts b/packages/runtime-core/__tests__/componentProps.spec.ts
index 04fa4206396..1cc43c91bc2 100644
--- a/packages/runtime-core/__tests__/componentProps.spec.ts
+++ b/packages/runtime-core/__tests__/componentProps.spec.ts
@@ -17,7 +17,6 @@ import {
   ref,
   render,
   serializeInner,
-  toRaw,
   toRefs,
   watch,
 } from '@vue/runtime-test'
@@ -129,12 +128,12 @@ describe('component props', () => {
     render(h(Comp, { foo: 1 }), root)
     expect(props).toEqual({ foo: 1 })
     expect(attrs).toEqual({ foo: 1 })
-    expect(toRaw(props)).toBe(attrs)
+    expect(props).toBe(attrs)
 
     render(h(Comp, { bar: 2 }), root)
     expect(props).toEqual({ bar: 2 })
     expect(attrs).toEqual({ bar: 2 })
-    expect(toRaw(props)).toBe(attrs)
+    expect(props).toBe(attrs)
   })
 
   test('boolean casting', () => {
diff --git a/packages/runtime-core/src/componentRenderUtils.ts b/packages/runtime-core/src/componentRenderUtils.ts
index 31a1a5fa122..3044884669a 100644
--- a/packages/runtime-core/src/componentRenderUtils.ts
+++ b/packages/runtime-core/src/componentRenderUtils.ts
@@ -116,7 +116,7 @@ export function renderComponentRoot(
                 ? {
                     get attrs() {
                       markAttrsAccessed()
-                      return attrs
+                      return shallowReadonly(attrs)
                     },
                     slots,
                     emit,