From b2092dbff9ab0ccfa8e59ed3ca540cca0715c683 Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Fri, 9 Mar 2018 01:55:27 +0900
Subject: [PATCH] fix(types): make render option in functional components to
 optional (#7663)

---
 types/options.d.ts         | 2 +-
 types/test/options-test.ts | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index d6f21d4ee74..dcaf5f5a0f3 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -110,7 +110,7 @@ export interface FunctionalComponentOptions<Props = DefaultProps, PropDefs = Pro
   props?: PropDefs;
   inject?: InjectOptions;
   functional: boolean;
-  render(this: undefined, createElement: CreateElement, context: RenderContext<Props>): VNode;
+  render?(this: undefined, createElement: CreateElement, context: RenderContext<Props>): VNode;
 }
 
 export interface RenderContext<Props=DefaultProps> {
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 82e04882139..df03ed787fc 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -331,6 +331,10 @@ Vue.component('functional-component-object-inject', {
   }
 })
 
+Vue.component('functional-component-check-optional', {
+  functional: true
+})
+
 Vue.component("async-component", ((resolve, reject) => {
   setTimeout(() => {
     resolve(Vue.component("component"));