feat(compiler-core): re-implement v-once to use cache mechanism

2019-10-23 17:57:40 -04:00
parent 9291011456
commit af5a8e1154
21 changed files with 388 additions and 95 deletions
--- a/packages/runtime-core/src/createRenderer.ts
+++ b/packages/runtime-core/src/createRenderer.ts
@@ -179,14 +179,10 @@ export function createRenderer<
    optimized: boolean = false
  ) {
    // patching & not same type, unmount old tree
-    if (n1 != null) {
-      if (!isSameType(n1, n2)) {
-        anchor = getNextHostNode(n1)
-        unmount(n1, parentComponent, parentSuspense, true)
-        n1 = null
-      } else if (n1.props && n1.props.$once) {
-        return
-      }
+    if (n1 != null && !isSameType(n1, n2)) {
+      anchor = getNextHostNode(n1)
+      unmount(n1, parentComponent, parentSuspense, true)
+      n1 = null
    }

    const { type, shapeFlag } = n2