From: Evan You <yyx990803@gmail.com>
Date: Tue, 9 Feb 2021 16:57:09 +0000 (-0500)
Subject: fix(compiler-core): do not mark v-for as stable on const bindings
X-Git-Tag: v3.0.6~28
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=734c65badd8395a78d7beee1fc960aee418361a0;p=thirdparty%2Fvuejs%2Fcore.git

fix(compiler-core): do not mark v-for as stable on const bindings

since the source value may be a reactive array

fix vitejs/vite#1956
---

diff --git a/packages/compiler-core/src/transforms/vFor.ts b/packages/compiler-core/src/transforms/vFor.ts
index 2d193e6012..5cff0eaea4 100644
--- a/packages/compiler-core/src/transforms/vFor.ts
+++ b/packages/compiler-core/src/transforms/vFor.ts
@@ -23,7 +23,8 @@ import {
   VNodeCall,
   ForRenderListExpression,
   BlockCodegenNode,
-  ForIteratorExpression
+  ForIteratorExpression,
+  ConstantTypes
 } from '../ast'
 import { createCompilerError, ErrorCodes } from '../errors'
 import {
@@ -78,7 +79,7 @@ export const transformFor = createStructuralDirectiveTransform(
 
       const isStableFragment =
         forNode.source.type === NodeTypes.SIMPLE_EXPRESSION &&
-        forNode.source.constType > 0
+        forNode.source.constType > ConstantTypes.CAN_SKIP_PATCH
       const fragmentFlag = isStableFragment
         ? PatchFlags.STABLE_FRAGMENT
         : keyProp