From: Evan You <yyx990803@gmail.com>
Date: Tue, 30 Jun 2020 16:01:05 +0000 (-0400)
Subject: chore: comment on slot optimization hint [ci skip]
X-Git-Tag: v3.0.0-beta.17~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b23216e6de1f22d8f628a3cef5716372fa7fb38;p=thirdparty%2Fvuejs%2Fcore.git

chore: comment on slot optimization hint [ci skip]
---

diff --git a/packages/runtime-core/src/componentSlots.ts b/packages/runtime-core/src/componentSlots.ts
index 28f6ab1ef4..1ab6a0c272 100644
--- a/packages/runtime-core/src/componentSlots.ts
+++ b/packages/runtime-core/src/componentSlots.ts
@@ -36,6 +36,10 @@ export type RawSlots = {
   // normalizeChildren when the component vnode is created.
   _ctx?: ComponentInternalInstance | null
   // internal, indicates compiler generated slots
+  // we use a reserved property instead of a vnode patchFlag because the slots
+  // object may be directly passed down to a child component in a manual
+  // render funciton, and the optimization hint need to be on the slot object
+  // itself to be preserved.
   _?: 1
 }