fix(v-memo): should work on v-for with constant expression (#4272)

fix #4246
2021-08-07 09:37:09 +08:00
parent c421fb91b2
commit 3b60358d0e
2 changed files with 23 additions and 1 deletions
--- a/packages/runtime-core/src/helpers/renderList.ts
+++ b/packages/runtime-core/src/helpers/renderList.ts
@@ -71,7 +71,7 @@ export function renderList(
    }
    ret = new Array(source)
    for (let i = 0; i < source; i++) {
-      ret[i] = renderItem(i + 1, i)
+      ret[i] = renderItem(i + 1, i, undefined, cached && cached[i])
    }
  } else if (isObject(source)) {
    if (source[Symbol.iterator as any]) {