feat(core): respect $stable slots flag per RFC

2019-11-26 10:03:36 -05:00
parent 009dc80674
commit 43097987cf
3 changed files with 52 additions and 2 deletions
--- a/packages/runtime-core/src/componentRenderUtils.ts
+++ b/packages/runtime-core/src/componentRenderUtils.ts
@@ -138,7 +138,9 @@ export function shouldUpdateComponent(
    // this path is only taken by manually written render functions
    // so presence of any children leads to a forced update
    if (prevChildren != null || nextChildren != null) {
-      return true
+      if (nextChildren == null || !(nextChildren as any).$stable) {
+        return true
+      }
    }
    if (prevProps === nextProps) {
      return false