From fc5bf5cbe1cd9cf6d53b90608c84317af5dfa18f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 30 May 2019 21:27:14 +0800
Subject: [PATCH] chore: comments

---
 packages/runtime-core/src/patchFlags.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/runtime-core/src/patchFlags.ts b/packages/runtime-core/src/patchFlags.ts
index 0a26e80e..ff6c52ce 100644
--- a/packages/runtime-core/src/patchFlags.ts
+++ b/packages/runtime-core/src/patchFlags.ts
@@ -9,6 +9,9 @@
 //
 //   const flag = TEXT | CLASS
 //   if (flag & TEXT) { ... }
+//
+// Check the `patchElement` function in './createRednerer.ts' to see how the
+// flags are handled during diff.
 
 // Indicates an element with dynamic textContent (children fast path)
 export const TEXT = 1